Salts of alginic acid that are extracted from marine kelp and used to make dental impressions and as absorbent material for surgical dressings.
Term used to designate tetrahydroxy aldehydic acids obtained by oxidation of hexose sugars, i.e. glucuronic acid, galacturonic acid, etc. Historically, the name hexuronic acid was originally given to ascorbic acid.
A sugar acid formed by the oxidation of the C-6 carbon of GLUCOSE. In addition to being a key intermediate metabolite of the uronic acid pathway, glucuronic acid also plays a role in the detoxification of certain drugs and toxins by conjugating with them to form GLUCURONIDES.
A group of carbon-oxygen lyases. These enzymes catalyze the breakage of a carbon-oxygen bond in polysaccharides leading to an unsaturated product and the elimination of an alcohol. EC 4.2.2.
Microbial, plant, or animal cells which are immobilized by attachment to solid structures, usually a column matrix. A common use of immobilized cells is in biotechnology for the bioconversion of a substrate to a particular product. (From Singleton & Sainsbury, Dictionary of Microbiology and Molecular Biology, 2d ed)
A species of gram-negative, aerobic, rod-shaped bacteria commonly isolated from clinical specimens (wound, burn, and urinary tract infections). It is also found widely distributed in soil and water. P. aeruginosa is a major agent of nosocomial infection.
Stable strontium atoms that have the same atomic number as the element strontium, but differ in the atomic weight. Sr-84, 86, 87, and 88 are the stable strontium isotopes.
Substances used to create an impression, or negative reproduction, of the teeth and dental arches. These materials include dental plasters and cements, metallic oxide pastes, silicone base materials, or elastomeric materials.
A genus of BROWN ALGAE in the family Laminariaceae. Dried pencil-like pieces may be inserted in the cervix where they swell as they absorb moisture, serving as osmotic dilators.
Reversibly catalyze the oxidation of a hydroxyl group of carbohydrates to form a keto sugar, aldehyde or lactone. Any acceptor except molecular oxygen is permitted. Includes EC 1.1.1.; EC 1.1.2.; and 1.1.99.
Hard or soft soluble containers used for the oral administration of medicine.
Small uniformly-sized spherical particles, of micrometer dimensions, frequently labeled with radioisotopes or various reagents acting as tags or markers.
Acids derived from monosaccharides by the oxidation of the terminal (-CH2OH) group farthest removed from the carbonyl group to a (-COOH) group. (From Stedmans, 26th ed)
Water swollen, rigid, 3-dimensional network of cross-linked, hydrophilic macromolecules, 20-95% water. They are used in paints, printing inks, foodstuffs, pharmaceuticals, and cosmetics. (Grant & Hackh's Chemical Dictionary, 5th ed)
A genus of gram-negative, aerobic, rod-shaped bacteria characterized by an outer membrane that contains glycosphingolipids but lacks lipopolysaccharide. They have the ability to degrade a broad range of substituted aromatic compounds.
Deacetylated CHITIN, a linear polysaccharide of deacetylated beta-1,4-D-glucosamine. It is used in HYDROGEL and to treat WOUNDS.
Colloids with a solid continuous phase and liquid as the dispersed phase; gels may be unstable when, due to temperature or other cause, the solid phase liquefies; the resulting colloid is called a sol.
An enzyme that catalyzes the reversible isomerization of D-mannose-6-phosphate to form D-fructose-6-phosphate, an important step in glycolysis. EC 5.3.1.8.
A hydrated form of silicon dioxide. It is commonly used in the manufacture of TOOTHPASTES and as a stationary phase for CHROMATOGRAPHY.
The preparation, mixing, and assembling of a drug. (From Remington, The Science and Practice of Pharmacy, 19th ed, p1814)
Chemicals especially for use on instruments to destroy pathogenic organisms. (Boucher, Clinical Dental Terminology, 4th ed)
A species of gram-negative, aerobic bacteria first isolated from soil in Vineland, New Jersey. Ammonium and nitrate are used as nitrogen sources by this bacterium. It is distinguished from other members of its genus by the ability to use rhamnose as a carbon source. (From Bergey's Manual of Determinative Bacteriology, 9th ed)
A genus of BROWN ALGAE in the family Lessoniaceae, and one of the major forms of KELP. The species Macrocystis pyrifera, also known as giant kelp, is the largest of the marine algae.
A network of cross-linked hydrophilic macromolecules used in biomedical applications.
A group of enzymes that catalyze an intramolecular transfer of a phosphate group. It has been shown in some cases that the enzyme has a functional phosphate group, which can act as the donor. These were previously listed under PHOSPHOTRANSFERASES (EC 2.7.-). (From Enzyme Nomenclature, 1992) EC 5.4.2.
A calcium salt that is used for a variety of purposes including: building materials, as a desiccant, in dentistry as an impression material, cast, or die, and in medicine for immobilizing casts and as a tablet excipient. It exists in various forms and states of hydration. Plaster of Paris is a mixture of powdered and heat-treated gypsum.

Purification and properties of an alginate lyase from a marine bacterium. (1/937)

An unidentified pseudomonad isolated by enrichment procedures from decomposing seaweed was grown in defined medium containing sodium alginate as the sole carbon source. The alginate lyase recovered from disrupted bacterial cells was purified by a procedure of (NH4)2SO4 precipitation, gel filtration and ion-exchange chromatography. From sodium dodecyl sulphate/polyacrylamide-gel-electrophoresis experiments a mol.wt. of about 50 000 was determined. The enzyme was active against both algal and bacterial alginate preparations. Kinetic studies together with analysis of the unsaturated oligouronide products of alginate lyase action indicated the enzyme was specific for guluronic acid-containing regions of the macromolecular substrate. The specificity of the enzyme can be used to give information about the primary composition of alginate samples.  (+info)

Matrix degradation by chondrocytes cultured in alginate: IL-1 beta induces proteoglycan degradation and proMMP synthesis but does not result in collagen degradation. (2/937)

OBJECTIVE: To determine the role of interleukin-1 beta (IL-1 beta) in the degradation of proteoglycans and collagen by articular chondrocytes. DESIGN: Chondrocytes were cultured in alginate beads for 2 weeks to produce extracellular matrix, followed by the addition of IL-1 beta for 1 or 2 days. Breakdown of extracellular matrix (with and without activation of pro-matrix metalloproteinases (MMPs) by APMA) was monitored by release of glycosaminoglycans (GAG, proteoglycans) and hydroxyproline (collagen) from the beads into the medium, and by the amount of damaged collagen in the bead. Levels of (pro)MMPs in the beads were assayed by zymography and their activity was quantified fluorometrically. RESULTS: IL-1 beta induced a profound GAG release (approximately 80% after 2 days at 20 ng/ml IL-1 beta) that was both time and IL-1 beta concentration dependent. Under these conditions no increase in collagen release or damaged collagen in the bead was detected. Zymography demonstrated that the synthesis of a variety of proMMPs was induced by IL-1 beta, without a detectable increase of MMP-activity as measured in the activity assay. After activation of the proMMPs by APMA, a time and IL-1 beta concentration-dependent increase in MMP-activity was found, which resulted in almost complete deterioration of collagen already after 18 h of incubation. In the presence of APMA, GAG release from IL-1 beta treated beads was significantly increased from 24 to 31%. CONCLUSIONS: Our data suggest that proteoglycan and collagen degradation are regulated through different mechanisms: IL-1 beta induces the synthesis of active enzymes that degrade proteoglycans, such as 'aggrecanase', and inactive proMMPs. Thus, IL-1 beta alone is not sufficient to result in collagen-degrading MMPs. Once activated, MMPs may account for up to a quarter of the aggrecan degradation in this model.  (+info)

Factors affecting dimensional instability of alginate impressions during immersion in the fixing and disinfectant solutions. (3/937)

To clarify the factors determining the dimensional stability of alginate impressions during immersion in disinfectant and fixing solution, the weight change of impressions in solutions of glutaraldehyde (GA), NaClO, Na2SO4, K2SO4, CaCl2, and ZnSO4 was measured. In the nonelectrolytic solution, GA, the weight decreased in proportion to concentration, possibly due to the gradient of osmotic pressure between the impression and solution. In monovalent metallic salt solutions the weight change decreased with increased concentration. Especially at lower concentrations the rate of weight loss was high. A chemical action of the solution might also be involved, in addition to the osmotic pressure difference. The weight loss in divalent metallic salt solutions was greater than in monovalent solutions, implicating crosslinking reactions between the impression and solution.  (+info)

Study of the response of a biofilm bacterial community to UV radiation. (4/937)

We have developed a bioluminescent whole-cell biosensor that can be incorporated into biofilm ecosystems. RM4440 is a Pseudomonas aeruginosa FRD1 derivative that carries a plasmid-based recA-luxCDABE fusion. We immobilized RM4440 in an alginate matrix to simulate a biofilm, and we studied its response to UV radiation damage. The biofilm showed a protective property by physical shielding against UV C, UV B, and UV A. Absorption of UV light by the alginate matrix translated into a higher survival rate than observed with planktonic cells at similar input fluences. UV A was shown to be effectively blocked by the biofilm matrix and to have no detectable effects on cells contained in the biofilm. However, in the presence of photosensitizers (i.e., psoralen), UV A was effective in inducing light production and cell death. RM4440 has proved to be a useful tool to study microbial communities in a noninvasive manner.  (+info)

The A modules of the Azotobacter vinelandii mannuronan-C-5-epimerase AlgE1 are sufficient for both epimerization and binding of Ca2+. (5/937)

The industrially important polysaccharide alginate is composed of the two sugar monomers beta-D-mannuronic acid (M) and its epimer alpha-L-guluronic acid (G). In the bacterium Azotobacter vinelandii, the G residues originate from a polymer-level reaction catalyzed by one periplasmic and at least five secreted mannuronan C-5-epimerases. The secreted enzymes are composed of repeats of two protein modules designated A (385 amino acids) and R (153 amino acids). The modular structure of one of the epimerases, AlgE1, is A1R1R2R3A2R4. This enzyme has two catalytic sites for epimerization, each site introducing a different G distribution pattern, and in this article we report the DNA-level construction of a variety of truncated forms of the enzyme. Analyses of the properties of the corresponding proteins showed that an A module alone is sufficient for epimerization and that A1 catalyzed the formation of contiguous stretches of G residues in the polymer, while A2 introduces single G residues. These differences are predicted to strongly affect the physical and immunological properties of the reaction product. The epimerization reaction is Ca2+ dependent, and direct binding studies showed that both the A and R modules bind this cation. The R modules appeared to reduce the Ca2+ concentration needed for full activity and also stimulated the reaction rate when positioned both N and C terminally.  (+info)

Regulation of alginate biosynthesis in Pseudomonas syringae pv. syringae. (6/937)

Both Pseudomonas aeruginosa and the phytopathogen P. syringae produce the exopolysaccharide alginate. However, the environmental signals that trigger alginate gene expression in P. syringae are different from those in P. aeruginosa with copper being a major signal in P. syringae. In P. aeruginosa, the alternate sigma factor encoded by algT (sigma22) and the response regulator AlgR1 are required for transcription of algD, a gene which encodes a key enzyme in the alginate biosynthetic pathway. In the present study, we cloned and characterized the gene encoding AlgR1 from P. syringae. The deduced amino acid sequence of AlgR1 from P. syringae showed 86% identity to its P. aeruginosa counterpart. Sequence analysis of the region flanking algR1 in P. syringae revealed the presence of argH, algZ, and hemC in an arrangement virtually identical to that reported in P. aeruginosa. An algR1 mutant, P. syringae FF5.32, was defective in alginate production but could be complemented when algR1 was expressed in trans. The algD promoter region in P. syringae (PsalgD) was also characterized and shown to diverge significantly from the algD promoter in P. aeruginosa. Unlike P. aeruginosa, algR1 was not required for the transcription of algD in P. syringae, and PsalgD lacked the consensus sequence recognized by AlgR1. However, both the algD and algR1 upstream regions in P. syringae contained the consensus sequence recognized by sigma22, suggesting that algT is required for transcription of both genes.  (+info)

Biodegradable alginate microspheres as a delivery system for naked DNA. (7/937)

Sodium alginate is a naturally occurring polysaccharide that can easily be polymerized into a solid matrix to form microspheres. These biodegradable microspheres were used to encapsulate plasmid DNA containing the bacterial beta-galactosidase (LacZ) gene under the control of either the cytomegalovirus (CMV) immediate-early promoter or the Rous sarcoma virus (RSV) early promoter. Mice inoculated orally with microspheres containing plasmid DNA expressed LacZ in the intestine, spleen and liver. Inoculation of mice with microspheres containing both the plasmid DNA and bovine adenovirus type 3 (BAd3) resulted in a significant increase in LacZ expression compared to those inoculated with microspheres containing only the plasmid DNA. Our results suggest that adenoviruses are capable of augumenting transgene expression by plasmid DNA both in vitro and in vivo.  (+info)

R-factor inheritance and plasmid content in mucoid Pseudomonas aeruginosa. (8/937)

Eighteen strains of alginate-producing mucoid Pseudomonas aeruginosa were evaluated with respect to plasmid content and the ability to maintain well-characterized R plasmids. The spontaneous loss of alginate production in these strains varied from 0.01 to 0.7% and was not significantly increased by plasmid curing regimens. Examination of cleared lysates of these strains and their isogenic nonmucoid derivatives by agarose gel electrophoresis failed to reveal plasmid DNA. R-plasmid (P-incompatibility-group) transfer to mucoid P. aeruginosa was unaffected by the presence of the alginate capsule. Maintenance and expression of such plasmids in the mucoid strains were confirmed by agarose gel electrophoresis and by verification of plasmid-linked drug resistance and pilus-specific bacteriophage sensitivity. These studies demonstrate that alginate production does not appear to be plasmid linked and that mucoid P. aeruginosa are capable of receiving and donating certain drug resistance plasmids. Since some of the plasmids used here have been shown to mobilize chromosomal DNA, strains constructed in this study should afford the means for exploring the genetic basis of the mucoid phenotype.  (+info)

Calcium alginate is a water-insoluble, gelatinous, cream-coloured substance that can be created through the addition of aqueous calcium chloride to aqueous sodium alginate. Calcium alginate is also used for entrapment of enzymes and forming artificial seeds in plant tissue culture. Alginate is usually the salts of alginic acid, but it can also refer to derivatives of alginic acid and alginic acid itself; in some publications the term algin is used instead of alginate. Alginate is present in the cell walls of brown algae, as the calcium, magnesium and sodium salts of alginic acid. To extract the alginate, the seaweed is broken into pieces and stirred with a hot solution of an alkali, usually sodium carbonate. Over a period of about two hours, the alginate dissolves as sodium alginate to give a very thick slurry. This slurry also contains the part of the seaweed that does not dissolve, mainly cellulose. This insoluble residue must be removed from the solution. The solution is too thick ...
Like many natural polysaccharides, dried alginates are not stable to heat, oxygen, metallic ions, etc. Stored in such circumstances, alginates will be degraded naturally. The high-viscosity alginate is more rapidly degraded than the medium-or low- viscosity ones. The order of stability in storage is: sodium alginate , ammonium alginate , alginic acid.. Different kind of alginate salt gives different stability, so does the different grade product. The industrial grade alginate solution is more easily degraded by microbe in the air, because such products contain much algal particles and nitrogenous matter which offer plenty of nutrition for microbe. The pure sodium alginate solution can be kept at room temperature for several months without obvious change in viscosity. When temperature increases, all alginate solutions will depolymerize. Alginate solutions are stable in the pH range 5.5 - 10 at room temperature for a long time, but will form the gel below pH 5.5. Propylene glycol alginate solution ...
Grape juice can be easily contaminated with ochratoxin A (OTA), one of the known mycotoxins with the greatest public health significance. Among the different approaches to decontaminate juice from this mycotoxin, microbiological methods proved efficient, inexpensive and safe, particularly the use of yeast or yeast products. To ascertain whether immobilisation of the yeast biomass would lead to successful decontamination, alginate beads encapsulating Candida intermedia yeast cells were used in our experiments to evaluate their OTA-biosorption efficacy. Magnetic calcium alginate beads were also prepared by adding magnetite in the formulation to allow fast removal from the aqueous solution with a magnet. Calcium alginate beads were added to commercial grape juice spiked with 20μg/kg OTA and after 48h of incubation a significant reduction (,80%), of the total OTA content was achieved, while in the subsequent phases (72-120h) OTA was slowly released into the grape juice by alginate beads. ...
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TY - JOUR. T1 - The effect of sodium alginate on physical and dissolution properties of Surelease®-matrix pellets prepared by a novel pelletizer. AU - Kim, Min Soo. AU - Kim, Jeong Soo. AU - Hwang, Sung Joo. PY - 2007/11/1. Y1 - 2007/11/1. N2 - The aim of this study was to investigate the effect of sodium alginate on the physical and dissolution properties of Surelease®-matrix pellets prepared by a novel pelletizer-equipped piston extruder and double-arm counter-rotating rollers. The mean values of the shape factor (eR) and the aspect ratio of Surelease®-matrix pellets were 0.615-0.625 and 1.06-1.070, respectively, indicating good sphericity of the pellets. The drug release rate increased as the amount of sodium alginate increased due to hydration, swelling, and erosion within the Surelease®-matrix pellets. In addition, the porosity of pellets also increased with increasing sodium alginate content. The results of this study show that sodium alginate has a greater effect on the drug release ...
Press Release issued Apr 30, 2019: There are several types of alginates available in the global market including sodium, calcium, and potassium out of which sodium alginates hold the highest share of the market. Sodium alginate is a type of natural polysaccharide which is extracted from the brown seaweed that grows in cold water regions. Sodium alginate market is expanding mainly on account of the increasing size of food industry. Sodium alginate is soluble in cold and hot water, and possesses thickening and binding properties. Sodium alginate forms a gel without being heated in the presence of calcium. Sodium alginate is generally used along with calcium salts in several cuisines to produce small and large spheres filled with liquid that burst in the mouth. Sodium Alginate is also used in the food industry as an emulsifier to increase viscosity. It is also used in indigestion tablets as it does not have any discernible flavor.
The report on the Global Sodium Alginate market offers complete data on the Sodium Alginate market. Components, for example, main players, analysis, size, situation of the business, SWOT analysis, and best patterns in the market are included in the report. In addition to this, the report sports numbers, tables, and charts that offer a clear viewpoint of the Sodium Alginate market. The top contenders SNP, KIMICA, SNAP Natural & Alginate Products, IRO Alginate Industry, NovaMatrix, Bright Moon Seaweed, Lianyungang Tiantian Seaweed Industrial, Unikem of the global Sodium Alginate market are further covered in the report .. Access to the sample pages of the report at: http://www.extentresearch.com/request-for-sample.html?repid=19657. The report also segments the global Sodium Alginate market based on product mode and segmentation Industrial Grade, Food Grade, Pharma Grade. The study includes a profound summary of the key sectors and the segments Papermaking, Paper Coatings, Textiles, Food & ...
There have been few studies of the effect of alginate dressings on the processes of wound healing.. The healing of cutaneous ulcers requires the development of a vascularized granular tissue bed, filling of large tissue defects by dermal regeneration, and the restoration of a continuous epidermal keratinocyte layer. These processes were modeled in vitro in one study, utilizing human dermal fibroblast, microvascular endothelial cell (HMEC), and keratinocyte cultures to examine the effect of calcium alginate on the proliferation and motility of these cultures, and the formation of capillarylike structures by HMEC.. In the study, the calcium alginate increased the proliferation of fibroblasts but decreased the proliferation of HMEC and keratinocytes. In contrast, the calcium alginate decreased fibroblast motility but had no effect on keratinocyte motility. There was no significant effect of calcium alginate on the formation of capillarylike structures by HMEC. The effects of calcium alginate on ...
Sodium Alginate Market by Product (Food Grade Sodium Alginate, Pharmaceutical Grade Sodium Alginate, Technical Grade Sodium Alginate, Feed Grade Sodium Alginate), by Application (Food Additives, Pharmaceutical & Healthcare, Paper & Pulp, Personal Care & Cosmetics, Textile, Animal Feed, Industrial) and by Region, Trend, Forecast, Competitive Analysis, and Growth Opportunity 2019-2024 - Radiant Insights
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Figure 1, a) 3D pore 100 µm droplet chip junction, b) 80 µm, c) 100 µm alginate beads.. The Dolomite Team is using microfluidics to produce small (80-120 µm) alginate beads suitable for cell encapsulation. A 2 % alginate solution was dissolved in water overnight with subsequent addition of Ca-EDTA. For the oil phase, 1 % Fluosurf in HFE 7500 was used with 0.05 % acetic acid to release the chelated calcium in the Ca-EDTA complex and allow alginate crosslinking from within. Both solutions were introduced into a 100 µm 3D pore fluorophilic single junction chip (figure 1a) to form spherical monodispersed beads. Depending on flow rates (Qd 16 µlmin-1 Qc 10 µlmin-1 and Qd 10 µlmin-1 Qc 18 µlmin-1) 80 µm (figure 1b) and 100 µm (figure 1c) alginate beads were produced respectively.. DOWNLOAD APPLICATION NOTE HERE. If you are interested in producing alginate beads for your applications, please contact us at [email protected], and keep an eye out for our alginate bead application ...
Alginate is a biodegradable, immunocompatible biopolymer that is capable of immobilizing viable cells and bioactive factors. Few investigations have analyzed the efficacy of alginate gels as substrata for cell attachment and proliferation. Here we have compared the adhesion and subsequent growth of human and rat bone marrow stromal fibroblastic cells on unmodified alginate hydrogel surfaces. It was found that, in contrast to rat cells, human cells did not readily attach or proliferate on unmodified alginates. In attempts to enhance these features, or collagen type I was incorporated into the gels, with no significant improvements in prolonged human cell adherence. However, alginate gels containing both collagen type I and beta-tricalcium phosphate were found to enhance human cell adherence and proliferation. Furthermore, interactions between the collagen and beta-tricalcium phosphate prevented loss of the protein from the hydrogels. These results indicate that alginate gels containing collagen have
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This study explores the utility of calcium-alginate hydrogels as a three-dimensional culture platform for hematopoietic cell culture. We investigate the effects of calcium concentration and alginate viscosity on the mechanical and physical properties of the gel, and their subsequent effects on cellular growth. Further, we have also explored the establishment of a co-culture system in the presence of stromal cells (HS-5) and using K562 cells as our hematopoietic model. Physical characterization of calcium alginate is conducted with mechanical testing and Scanning Electron Microscope (SEM) scans to determine the relationship between the mechanical strength and the structure of calcium alginate with the variation of calcium concentration and alginate viscosity. The study on mechanical properties via compressive stress test reveals that increasing calcium concentration and alginate viscosity resulted in the formation of stiffer gels as showed by the higher elastic moduli. In addition, SEM scans ...
The influence of the mixture of water and alcohols on the solubility and properties of alginate and its calcium-induced gels is of interest for the food, wound care and pharmaceutical industries. The solvent quality of water with increasing amounts of ethanol (0-20%) on alginate was studied using intrinsic viscosity. The effect of ethanol addition on the rheological and mechanical properties of calcium alginate gels was determined. Small-angle X-ray scattering and transmission electron microscopy were used to study the network structure. It is shown that the addition of ethanol up to 15% (wt) increases the extension of the alginate chain, which correlates with increased moduli and stress being required to fracture the gels. The extension of the polymer chain is reduced at 20% (wt) ethanol, which is followed by reduced moduli and stress at breakage of the gels. The network structure of gels at high ethanol concentrations (24%) is characterized by thick and poorly connected network strands.. ...
Alginate hydrogels are commonly used in biomedical applications such as scaffolds for tissue engineering, drug delivery, and as a medium for cell immobilization. Multivalent cations are often employed to create physical crosslinks between carboxyl and hydroxyl moieties on neighbouring polysaccharide chains, creating hydrogels with a range of mechanical properties. This work describes the manufacture and characterisation of sodium alginate hydrogels using the divalent cations Mg2+, Ca2+ and Sr2+ to promote gelation via non-covalent crosslinks. The gelation time and Youngs modulus are characterised as a function of cation and alginate concentrations. The implications of this work towards the use of environmental elasticity to control stem cell differentiation are discussed.. ...
Sodium and potassium alginate are intended to be used as technological additives (functional groups: emulsifiers, stabilisers, thickeners, gelling agents and binders). Sodium alginate is intended to be used in feedingstuffs for pets, other non food-producing animals and fish, with no maximum recommended use level. Potassium alginate is intended to be used in feedingstuffs for cats and dogs at levels up to 40,000 mg/kg feed (on dry matter). Since the functional properties of the additives are determined by the alginate content, sodium and potassium alginate were considered equivalent. The maximum dose considered safe for cats, dogs, other non food-producing animals, salmonids and other fish is 40,000 mg alginates (sodium and potassium salts)/kg complete feed. The use of alginates in feedingstuffs for fish is of no concern for the consumer. Alginates are reported not to be irritant to the skin but mildly irritant to the eyes. They are considered as potential sensitisers to the skin and the ...
TY - JOUR. T1 - Oxidised alginate hydrogels as niche environments for corneal epithelial cells. AU - Wright, Bernice. AU - De Bank, Paul A.. AU - Luetchford, Kimberley. AU - Acosta, Fernando R.. AU - Connon, Che J.. PY - 2014/10. Y1 - 2014/10. N2 - Chemical and biochemical modification of hydrogels is one strategy to create physiological constructs that maintain cell function. The aim of this study was to apply oxidised alginate hydrogels as a basis for development of a biomimetic niche for limbal epithelial stem cells that may be applied to treating corneal dysfunction. The stem phenotype of bovine limbal epithelial cells (LEC) and the viability of corneal epithelial cells (CEC) were examined in oxidised alginate gels containing collagen IV over a 3-day culture period. Oxidation increased cell viability (P ≤ 0.05) and this improved further with addition of collagen IV (P ≤ 0.01). Oxidised gels presented larger internal pores (diameter: 0.2 - 0.8 µm) than unmodified gels (pore diameter: ...
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Humidity: sunny, mild humidity Using our observations from Experiment #2, we decided to start with a 1:24 ratio of sodium alginate to Future floor polish because this ratio produced a solution with the right combination of fluidity and thickness for a ground.. To begin the experiment we mixed ½ tbs of Sodium alginate and ¾ cup of Zea Mays Stop out to achieve a 1:24 ratio.. This mixture was not fluid like we expected. It immediately started clumping up and became thicker than we anticipated. We hypothesized the different results were due to addition of Gac 100, which is part of the stop out mixture. The Gac 100 was not included in our first test with a 1:24 ratio. In the first test, just future floor polish was mixed with sodium alginate. We let the sodium alginate and stop out mixture sit for three hours to see if over time the clumps would dissolve. After three hours of sitting with periodic stirring, the mixture was still very lumpy and thick. This ratio,1 part sodium alginate to 24 parts ...
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Oxygen-dependent alginate synthesis and enzymes in Pseudomonas aeruginosa.: Alginate production by the highly alginate-producing Pseudomonas aeruginosa 8821M wa
Objective(s): In this study, effects of encapsulated umbilical cord stem cells (UCSCs)-derived hepatocyte-like cells (HLCs) in high mannuronic alginate scaffolds was investigated on CCl4-induced acute liver failure (ALF) in rats. Material and Methods: UCSCs were encapsulated in high mannuronic alginate scaffolds. Then the UCSCs differentiated into HLCs for treatment of CCl4-induced ALF in rats. Thirty rats randomly divided into 5 groups: Intoxicated group received only CCl4 to induce ALF. In other groups including cell-free, UCSCs and HLCs, alginate scaffolds were transplanted into the liver 4 days after CCl4 injection. Biochemical markers including albumin (ALB), blood urea nitrogen (BUN), alanine aminotransferase (ALT), aspartate aminotransferase (AST), and alkaline phosphatase (ALP) were evaluated. Histological changes and gene expression of ALB, alpha-fetoprotein (AFP), and cytokeratin 18 (CK-18) were also assessed.Results: Expression of CK-18 significantly increased in HLCs compared to the UCSCs
lginate is a polysaccharide found within brown seaweeds and has been targeted as a carbon source for biofuel production. Alginate consists of α-L-guluronate (G) and β-D-mannuronate (M) linked in various patterns, which results in either a homo- or heteropolymeric structure. Alginate lyases are enzymes that degrade the linkage between G and M blocks and can have specificity to either polyG, polyM, or polyMG block degradation. The marine bacterium Vibrio splendidus 12B01 contains four putative alginate lyases which were investigated in this study. We identified, purified, and characterized the four PL7 alginates lyases. We found that these lyases have optimal activity between pH 7.5-8.5 and 20-25°C, consistent with use in a marine environment. Additionally, Ca 2+ is necessary for optimal enzyme activity. The binding constant (K m ) of the lyases toward alginate was found to be between 22 and 123 mM alginate and the maximum reaction rate (V max ) was found to be between 0.13 and 0.83 μM s -1 . ...
Alginates have many beneficial uses across a wide variety of industries. Alginates are salts of alginic acid taking the form of sodium, calcium and/or ammonium alginate precipitated from brown seaweed (algae).
TY - JOUR. T1 - Controlling alginate gel degradation utilizing partial oxidation and bimodal molecular weight distribution. AU - Boontheekul, Tanyarut. AU - Kong, Hyun Joon. AU - Mooney, David J.. N1 - Funding Information: The author would like to thank NIDCR/NIH for financial support (RO1 DE13349), as well as Royal King Anandamahidol foundation (Thailand) for a graduate fellowship to T.B.. PY - 2005/5. Y1 - 2005/5. N2 - Degradability is often a critical property of materials utilized in tissue engineering. Although alginate, a naturally derived polysaccharide, is an attractive material due to its biocompatibility and ability to form hydrogels, its slow and uncontrollable degradation can be an undesirable feature. In this study, we characterized gels formed using a combination of partial oxidation of polymer chains and a bimodal molecular weight distribution of polymer. Specifically, alginates were partially oxidized to a theoretical extent of 1% with sodium periodate, which created acetal ...
All chronic wounds are colonised by bacteria; for some, colonisation progresses to become infection. Alginate wound dressings are used for highly exuding chronic wounds as they are very absorbent, taking up large quantities of exudate while maintaining a moist wound bed to support healing. Some alginate dressings are doped with antimicrobials, most commonly silver, but evidence regarding the efficacy of these is largely inconclusive. This manuscript describes the development and in vitro assessment of alginate materials doped with chlorhexidine hexametaphosphate (CHX-HMP), a sparingly soluble salt which when exposed to aqueous environments provides sustained release of the common antiseptic chlorhexidine. Comparator materials were a commercial silver alginate dressing material and an alginate doped with chlorhexidine digluconate (CHXdg). CHX-HMP alginates provided a dose-dependent CHX release which was sustained for over 14 days, whereas CHXdg alginates released limited CHX and this ceased ...
Research work that began in 2013 has been able to establish, optimise and standardise the cultivation of the soil bacterium and the biotechnological process for producing and isolating bacterial alginates. By working specifically on optimising the bacteriums alginate biosynthesis, the researchers succeeded in improving the composition, and therefore the properties and yield of the alginate. This meant that they could make customised alginates that are particularly suitable for producing fibres for use in medical products. In a pilot production facility, the research partners were able to spin fibres from alginate and alginate-viscose, and turn them into innovative nonwoven materials and wound dressings within the established process. When the new wound dressings were tested in use, the alginate product that had been made using biotechnology was impressive for its liquid absorption capacity, which was significantly better than that of commercially available marine alginate-based wound dressings. ...
The high cost of soluble enzymes can limit their use for commercial and industrial purposes. Immobilization can enhance enzyme reusability, thereby reducing product isolation costs and overcoming this economic barrier. In the current study, two novel, purified lipases from Pseudomonas sp. (Pseudomonas reinekei and Pseudomonas brenneri) were entrapped in a calcium alginate matrix, with the aim of simultaneously enhancing enzyme reusability and stability. Following entrapment, the retained activity of the enzyme-alginate composite was verified by an enzymatic hydrolysis reaction of a p-nitrophenol palmitate substrate. The effect of the enzyme-alginate entrapment against various physiochemical parameters such as pH, temperature, metal ions, and solvents were subsequently examined. The entrapment was found to have minimal beneficial stability gains. However, enhanced enzyme reusability (up to 3 cycles) and stability (up to 18 days at 4°C) of the calcium alginate entrapped lipase, as indicated by
The relationship of high and low molecular weight mannuronic acid (M)- and guluronic acid (G)-rich alginate nanoparticles as oral insulin carrier was elucidated. Nanoparticles were prepared through ionotropic gelation using Ca2 +, and then in vitro physicochemical attributes and in vivo antidiabetic characteristics were examined. The alginate nanoparticles had insulin release retarded when the matrices had high alginate-to-insulin ratio or strong alginate-insulin interaction via O-H moiety. High molecular weight M-rich alginate nanoparticles were characterized by assemblies of long polymer chains that enabled insulin encapsulation with weaker polymer-drug interaction than nanoparticles prepared from other alginate grades. They were able to encapsulate and yet release and have insulin absorbed into systemic circulation, thereby lowering rat blood glucose. High molecular weight G- and low molecular weight M-rich alginate nanoparticles showed remarkable polymer-insulin interaction. This retarded ...
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The analysts forecast the global sodium alginate market to exhibit a CAGR of 5.43% during the period 2019-2024. The report covers the present scenario and the growth prospects of the global sodium alginate for 2019-2024. To calculate the market size, the report considers the sodium alginate sales volume and revenue.. The projections featured in the report have been derived using proven research methodologies and assumptions. By doing so, the research report serves as a repository of analysis and information for every facet of the market, including but not limited to: regional markets, product, and application.. Download Free Sample Report @ https://www.radiantinsights.com/research/sodium-alginate-market/request-sample. Geographically, the global sodium alginate market is segmented into North America, Asia Pacific, Europe, Middle East & Africa and South America. This report forecasts revenue growth at a global, regional & country level, and provides an analysis of the market trends in each of the ...
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SODIUM ALGINATE is part of manufacturing ingredient used in FDA Database. When you consume you prescription drug make sure that you are not allergic to this SODIUM ALGINATE. This will change the way your body absorbs prescription drug your doctor provided you with. SODIUM ALGINATE is used in manufacturing process of pharmaceutical products. List bellow has SODIUM ALGINATE as ingredient during manufacturing.. As some Prescription Drugs might have same name but they are classified by FDA with uniq ID.. ...
This review provides a critical update on human and animal studies investigating the effect of alginate supplementation on appetite regulation, glycaemic and insulinemic responses, and lipid metabolism with discussion of the evidence on potential mechanisms, efficacy and tolerability. Dependent on vehicle applied for alginate supplementation, the majority of animal and human studies suggest that alginate consumption does suppress satiety and to some extent energy intake. Only one long-term intervention trial found effects on weight loss. In addition, alginates seem to exhibit beneficial influence on postprandial glucose absorption and insulin response in animals and humans. However, alginate supplementation was only found to have cholesterol-lowering properties in animals. Several mechanisms have been suggested for the positive effect observed, which involve delayed gastric emptying, increased viscosity of digesta and slowed nutrient absorption in the small intestine upon alginate gel formation. ...
Alginate hydrogel made from alginate and crosslinking divalent ions is a natural biomaterial that is biocompatible, has low toxicity, is relatively cheap and has mild gelation chemistry. It is a porous material that allows diffusion of small molecules. Alginate hydrogel is a polymeric network that contains 95-99% water and it does in many ways resemble the natural extracellular matrix (ECM) that surrounds cells in the body. It is also hydrophilic, which reduces friction in body fluids and minimizes protein adsorption and it is easily stored and sterilized.Alginate is produced by both algae and bacteria, and it is initially synthesized as mannuronan (M) with 100% M-residues. Guluronic acid residues (G) are introduced in a post-polymerization step by enzymes called mannuronan C-5 epimerases that catalyze conversion of M into G without breaking the glycosidic bond. Seven different mannuronan C-5 epimerases have been sequenced, cloned and produced recombinantly, and these enzymes introduce ...
Here, we sought to develop a cell culture surface conversion technique that would not damage living cells. An alginate thin film, formed on a glass plate by spin coating of sodium alginate solution and dipping into calcium chloride solution, was used to inhibit adhesion of cells. The film could be removed by ethylenediaminetetraacetate (EDTA) at any time during cell culture, permitting observation of cellular responses to conversion of the culture surface in real time. Additionally, we demonstrated the validity of the alginate thin film coating method and the performance of the film. The thickness of the alginate thin film was controlled by varying the rotation speed during spin coating. Moreover, the alginate thin film completely inhibited the adhesion of cultured cells to the culture surface, irrespective of the thickness of the film. When the alginate thin film was removed from the culture surface by EDTA, the cultured cells adhered to the culture surface, and their morphology changed. ...
The two-phase model used previously to calculate the polymer-subphase volume of alginic acid was applied to interpret the dependence of apparent metal binding equilibrium on environmental conditions. In this model, the polymer subphase, a small aqueous region surrounding the polymer chain, was considered as a separate phase in the aqueous solution and as a protonation-deprotonation and metal binding reaction zone. Three factors were taken into account when treating experimental data: (1) the electric field due to the charged ligands on the polymer molecule, (2) the effective concentration of ligands based on polymer-subphase volume, and (3) the competition from hydrogen ions for the metal binding sites. The data of base titration of alginic acid in the presence of trace amounts of copper at different alginic acid concentrations and ionic strengths yielded unique intrinsic stability constants for complexes formed between a cupric ion and one or two binding ligands ...
Dolomite Microfluidics systems are enabling reliable, reproducible production of monodisperse alginate beads, overcoming the challenges associated with traditional batch techniques. Controlled and reproducible generation of alginate gel beads is crucial for biomedical science and engineering applications that require biologically and chemically inert polymers, such as the encapsulation of drugs or cells. However, this can be difficult to achieve with batch synthesis, which produces large beads with a wide size distribution and minimal control over bead size. The reproducibility and throughput of the technique are also low. Microfluidic synthesis of alginate beads overcomes these difficulties, allowing precise control of bead formation and enabling rapid production of particles with well-defined sizes, shapes and morphologies ...
Alginic acid, also called algin or alginate, is an anionic polysaccharide distributed widely in the cell walls of brown algae, where through binding with water it forms a viscous gum. It is also a significant component of the biofilms produced by the bacterium Pseudomonas aeruginosa, the major pathogen in cystic fibrosis, that confer it a high resistance to antibiotics and killing by macrophages. Its colour ranges from white to yellowish-brown. It is sold in filamentous, granular or powdered forms. Alginic acid is a linear copolymer with homopolymeric blocks of (1-4)-linked β-D-mannuronate (M) and its C-5 epimer α-L-guluronate (G) residues, respectively, covalently linked together in different sequences or blocks. The monomers can appear in homopolymeric blocks of consecutive G-residues (G-blocks), consecutive M-residues (M-blocks) or alternating M and G-residues (MG-blocks). Alginates are refined from brown seaweeds. A wide variety of brown seaweeds of the phylum Phaeophyceae are harvested ...
Sodium alginate is a seaweed-derived fibre that has previously been shown to moderate appetite in models of acute feeding. The mechanisms underlying this effect may include slowed gastric clearance and attenuated uptake from the small intestine. In order to assess whether alginate could be effective as a means of appetite control in free-living adults, 68 males and females (BMI range: 18.50-32.81 kgl M-2) completed this randomised, controlled two-way crossover intervention to compare the effects of 7 day daily ingestion of a strong-gelling sodium alginate formulation against a control. A sodium alginate with a high-guluronate content was chosen because, upon ingestion, it forms a strong gel in the presence of calcium ions. Daily preprandial ingestion of the sodium alginate formulation produced a significant 134.8 kcal (7%) reduction in mean daily energy intake. This reduced energy intake was underwritten by significant reductions in mean daily carbohydrate, sugar, fat, saturated fat and protein ...
Alginate can be produced by a microbial fermentation using bacteria such as Azobacter Vinelandii and Pseudomonas Aeruginosa (Linker and Jones 1964, Gorin and Spencer 1966). These bacteria produce a polysaccharide with a structure resembling alginate, differing only in that there are acetyl groups on a portion of the C2 and C3 hydroxyls. It is believed that the acetate groups are associated mainly with the D-mannuronic acid residues (Davidson 1977, Sutherland 1983, Paul 1986). The level of acetylation is variable as is the mannuronic and guluronic acid content. However the level of guluronic acid in the final polymer can be controlled to some extent by altering the level of calcium in the fermentation broth (Haug and Larsen 1971). The sequence structures and acetylation patterns of bacterial alginate, from different sources, have been studied with 2D COSY proton NMR techniques. The acetyl residues were found to be exclusively associated with the mannuronic acid residues with degrees of ...
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TY - JOUR. T1 - Gypsum Compatibility of Antimicrobial Alginates After Spray Disinfection. AU - King, Barbara B.. AU - Norling, Barry K.. AU - Seals, Richard. PY - 1994/12. Y1 - 1994/12. N2 - This investigation examined the gypsum compatibility of two antimicrobial alginates after spray disinfection. Subjective compatibility evaluations were compared with objective quantitative profilometer readings of gypsum cast surface roughness. COE Hydrophilic Gel Alginate, Jeltrate Plus Antimicrobial Alginate, and their nonantimicrobial counterparts, Coe Alginate and Jeltrate Plus, were used in this study. After spray disinfection with water (control), Alcide LD, Biocide, OMC II, and 0.5% NaOCl, impressions of the American National Standards Institute/American Dental Association (ANSI/ADA) specification no. 18 detail reproduction die and impressions made simultaneously of a smooth glass die were cast in Microstone, Silky‐Rock, and Die‐Keen. Five specimens were made for each alginate/disinfectant/gypsum ...
Pseudomonas aeruginosa (PA) infections in Cystic Fibrosis (CF) patients are not easily cleared due to the conversion from a nonmucoid to a mucoid phenotype. Alginate is an acetylated exopolysaccharide produced by mucoid PA that is responsible for increased resistance to antibiotics, host phagocytic killing, and propagating biofilm formation. Understanding the interaction between PA and host cells is critical to understanding chronic infection and inflammation in CF. In order to investigate this, we used A549 pulmonary epithelial cells and murine alveolar macrophages (MH-S) to examine host response to nonmucoid versus mucoid PA infection. Adhesion assays in A549 pulmonary epithelial cells revealed that mucoid PA mutants adhere poorly compared to their nonmucoid counterparts. Similarly, phagocytosis assays using MH-S infected with PA revealed that mucoid PA are increasingly resistant to phagocytosis. The alginate acetylation mutant FRD1175 is more susceptible to phagocytic killing than alginate+ FRD1.
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Sodium Alginate (alginate, algin) Molecular RecipesSodium Alginate is a natural polysaccharide product extracted from brown seaweed that grows in cold water regions. In modernist cuisine, sodiu&thickener sodium alginate
... can be produced from a sodium alginate solution by the addition of a calcium salt such as calcium chloride. ... Calcium alginate is also used for entrapment of enzymes and forming artificial seeds in plant tissue culture. "Alginate" is ... Over a period of about two hours, the alginate dissolves as sodium alginate to give a very thick slurry. This slurry also ... The calcium alginate may then be redissolved in various sodium carbonate solutions to produce alginate products containing ...
... alginate)n+1 Thus, the two substrates of this enzyme are GDP-D-mannuronate and (alginate)n, whereas its two products are GDP ... In enzymology, an alginate synthase (EC 2.4.1.33) is an enzyme that catalyzes the chemical reaction GDP-D-mannuronate + ( ... The systematic name of this enzyme class is GDP-D-mannuronate:alginate D-mannuronyltransferase. This enzyme is also called ... and (alginate)n+1. This enzyme belongs to the family of glycosyltransferases, specifically the hexosyltransferases. ...
Alginate is initially extracted from the cell wall of Brown seaweeds. Alginate dressings can be in the form of freeze-dried, ... Alginate dressings are useful for moderate to heavily exuding wounds. In the form of fibres trapped in a wound, alginate is ... A comparative study of hydrocolloid dressings and alginates showed that alginates gels remain on the wound for a longer period ... The ease of biodegradation is exploited in making alginate sutures used in surgical wound closures. Since alginate dressings ...
Chemically, propylene glycol alginate is an ester of alginic acid, which is derived from kelp. Some of the carboxyl groups are ... Propylene glycol alginate (PGA) is an emulsifier, stabilizer, and thickener used in food products. It is a food additive with E ... List of food additives, Codex Alimentarius Propylene glycol alginate, Food and Agriculture Organization of the United Nations ... What is the "propylene glycol alginate" found in salad dressings? at The Straight Dope (Articles with short description, Short ...
Alginate lyase cleaves the glycosidic bonds of alginate via a β-elimination mechanism, in which it first converts alginate into ... Therefore, some alginate lyases are G block specific, only degrading the homo-polymeric G blocks of alginate, and others are M ... Endolytic alginate lyases, like those found in the PL-7 family, have active sites which are wide open. Exolytic alginate lyases ... Alginate is a major component in the biofilms formed during mucoid P. aeruginosa infections. Alginate lyase is able to disrupt ...
... is also used for the production of alginates, with China producing up to ten thousand tons of the product ... "Alginates". www.seaweed.ie. Miyai, Kiyoshi; Tokushige, Tomoyasu; Kondo, Masahiko (2008-12-01). "Suppression of thyroid function ...
Sodium alginate (NaC6H7O6) is the sodium salt of alginic acid. Sodium alginate is a gum. Potassium alginate (KC6H7O6) is the ... Sodium alginate is mixed with soybean flour to make meat analogue.[citation needed] Alginate is used as an ingredient in ... Calcium alginate (CaC12H14O12), is made from sodium alginate from which the sodium ion has been removed and replaced with ... Some species yield an alginate that gives a strong gel, another a weaker gel, some may produce a cream or white alginate, while ...
Zhu, Benwei; Yin, Heng (2015). "Alginate lyase: Review of major sources and classification, properties, structure-function ... Gacesa, Peter (1992). "Enzymic degradation of alginates". International Journal of Biochemistry. 24 (4): 545-552. doi:10.1016/ ...
Gacesa, Peter (1992). "Enzymic degradation of alginates". International Journal of Biochemistry. 24 (4): 545-552. doi:10.1016/ ...
Sodium alginate • Soft palate • SoftDent • SOHP • Sonicare • Southern Regional Testing Agency • Sozodont • Speech organ • ... Potassium alginate • Premolar • Preparation • Primordial cyst • Procaine • Procter & Gamble • Prognathism • Prosthodontics • ...
Alginates can be extracted from L. hyperborea. In France, Ireland, Scotland and Norway, stipes cast up on beaches are collected ...
Alginates can be used as thickening agents. Although listed here under the category 'Microbial polysaccharides', commercial ... ISBN 978-1-904455-36-3. Remminghorst & Rehm (2009). "Microbial Production of Alginate: Biosynthesis and Applications". ... alginates are currently only produced by extraction from brown seaweeds such as Laminaria hyperborea or L. japonica. Poly-γ- ...
Hydrogel alginates have emerged as one of the most commonly used materials in organ printing research, as they are highly ... For instance, alginate polymerization is started by calcium ions in the substrate, which diffuse into the liquified bioink and ... Alginate hydrogel that is suitable for extrusion printing is also often less structurally and mechanically sound; however, this ... A major challenge in the use of alginate is its stability and slow degradation, which makes it difficult for the artificial gel ...
"Small-Angle X-Ray Scattering and Rheological Characterization of Alginate Gels. 1. Ca−Alginate Gels". Macromolecules. 33 (5): ...
Mooney is best known for his work in the use of biomaterials for regenerative and tissue engineering particularly alginate ... Augst, AD; Kong, HJ; Mooney, DJ (7 August 2006). "Alginate hydrogels as biomaterials". Macromolecular Bioscience. 6 (8): 623-33 ...
parvipes in calcium alginate". Journal of the Hattori Botanical Laboratory. 100: 855-863. Martins, Mônica Cristina Barroso; ...
Strugala, V.; Dettmar, P.W. (2010). "Alginate in the treatment of extra-oesophageal reflux". Effects, Diagnosis and Management ... oesophageal reflux by alginates". International Journal of Clinical Practice. 61 (10): 1654-1662. doi:10.1111/j.1742-1241.2007. ... "The effect of omeprazole pre-treatment on rafts formed by reflux suppressant tablets containing alginate". Journal of ...
". "Alginates: Applications in the Biomedical and Food Industries , Wiley". Wiley.com. Retrieved 2022-05-11. "Recycling from ... Biobased Materials for Food Packaging Handbook of Bionanocomposites Bionanocomposites for Food Packaging Applications Alginates ...
Sodium alginate is an unbranched copolymer of 1,4-linked-β-d-mannuronate (M) and α-l-guluronate (G) sugars. Sodium alginate ( ... Alginates are the natural product of brown algae and have been used extensively in wound dressing, drug delivery and tissue ... "CALCIUM ALGINATE - National Library of Medicine HSDB Database". toxnet.nlm.nih.gov. Archived from the original on 15 November ... Biodegradation Calcium alginate Low plastic water bottle Molecular gastronomy Spherification Water bottle Starch-based foam ...
Alginate: Alginate is the most copious marine natural polymer derived from brown seaweed. Alginate biopolymer applications ... The first ever application of alginate was in the form of wound dressing, where its gel-like and absorbent properties were ... When applied to wounds, alginate produces a protective gel layer that is optimal for healing and tissue regeneration, and keeps ... Additionally, there have been developments with alginate as a drug delivery medium, as drug release rate can easily be ...
Dumville JC, Keogh SJ, Liu Z, Stubbs N, Walker RM, Fortnam M (May 2015). "Alginate dressings for treating pressure ulcers". The ... Cochrane reviews summarise evidence on alginate dressings, foam dressings, and hydrogel dressings. Due to a lack of robust ...
... sodium alginate and ulva (ID 1873); vitamins, minerals, trace elements and standardised ginseng G115 extract (ID". EFSA Journal ...
his work at Cefoil Ltd on alginate compounds as substitutes for balsa wood used in construction of De Havilland DH.98 Mosquito ... "Slab of solid Ca alginate foam". collection.sciencemuseumgroup.org.uk. Science Museum, London. Archived from the original on 15 ... the Ministry of Aircraft Production approved a research effort to supplant the balsa with calcium alginate foam, made from ...
There is uncertain evidence whether alginate dressing is effective in the healing of venous ulcer when compared to hydrocolloid ... Cochrane Wounds Group) (August 2015). "Alginate dressings for venous leg ulcers". The Cochrane Database of Systematic Reviews. ...
Since fast gelation leads to good printability, bioprinting mainly utilizes alginate, modified alginate alone or alginate ... Alginate has become the most widely used natural polymer for bioprinting and is most likely the most common material of choice ... Alginate is a naturally derived biopolymer from the cell wall of brown seaweed that has been widely used in biomedicine because ... It is very similar to alginate and can form a hydrogel at low temperatures. It is even approved for use in food by the United ...
... sodium alginate and ulva (ID 1873); vitamins, minerals, trace elements and standardised ginseng G115 extract (ID 8, 1673, 1674 ...
Qin Y (June 2005). "Silver-containing alginate fibres and dressings". International Wound Journal. 2 (2): 172-6. doi:10.1111/j. ...
The amount of free calcium ions needs to be sufficient in order to form a gel-like capsule reaction with sodium alginate. Milk ... When the liquid containing alcohol or calcium salt is dropped into an alginate bath, the liquid will draw itself into a ... Both the liquid for consumption and the alginate bath should be left to stand after preparing to eliminate air bubbles. Air ... After removing the jelly from the alginate bath, calcium would not continue to diffuse into the center of the sphere, therefore ...
Percival, Steven L.; McCarty, Sara M. (5 June 2015). "Silver and Alginates: Role in Wound Healing and Biofilm Control". ...
Their cell walls are composed of alginate. They use laminarin and mannitol for storage. Like most brown algae, Postelsia goes ...
... Altern Ther Health Med. ... For intervention, a dietary supplement of modified citrus pectin: sodium alginate (2:1) was recommended based on research ...
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Sodium alginate. 2.5 g. 0.5%. Heat bath to a simmer and remove from heat.Drop frozen cherry spheres into hot sodium alginate ... Tags: Carregeenan, Christmas, Deep-frying, New Years Eve, Sodium Alginate, Sous Vide, Xanthan Gum ...
8The alginate beads were formulated as described by Heuskin et al. (2012a). Briefly, 8 ml of sodium alginate (1.5% w/v), 1.8 ml ... 24Alginate bead size characterization. In order to study the influence of RH on bead size, the alginate bead radius was ... The alginate solution samples were about 1.5% of their original mass. This value corresponds to the amount of alginate powder ... 22After this step, 72 airtight containers with alginate beads (6 RH values × 2 alginate bead types [blank and with E-β- ...
3. The permeability of the magnetic nanoparticles through the model alginate biofilm was enhanced 13.6 fold using an external ... Enhanced drug transport through alginate biofilms using magnetic nanoparticles. Magnetic nanoparticle transport through ... To quantify magnetic nanoparticle flux across the alginate biofilm into the receptor compartment, iron content of the samples ... Significant increases in transport rates of iron oxide nanoparticles through alginate biofilm were observed in the presence of ...
Norwegian company FMC Biopolymer converts seaweed to alginate for use in thousands of products with an advanced 24 hour ... The demand for alginate is significant and growing," he says.. For nearly 60 years, FMC Biopolymer has harvested kelp from the ... Norwegian company converts fresh seaweed to dry powder for alginates in 24 hours. Wednesday, July 31st 2013 - 16:28 UTC Full ... "For many, alginate is a well-kept secret," says Per Magne Olsen, Technology Manager at FMC Biopolymer. "Visitors at our factory ...
Sterngold Dental has announced the release of SternVantage Alginate Alternative. ... The Alginate Alternative is said to work complementarily with other SternVantage products, such as Putty Monophase, and ... SternVantage Alginate Alternative is designed to provide predictable, dimensionally stable, and is easy-to-use-the ... off promotion where a purchase of 1 SternVantage Alginate Alternative at regular price offers a 20% discount on a purchase of 1 ...
The electrostatic interactions between alginate and RBID allow pH-dependent controlled release systems that simulate the ... These studies highlighted the importance of electrostatic interactions between alginate and proteins in the release processes. ... Understanding the Glycoproteins Release from Alginate-Barium Capsules in Physiologic Enviroments () Edgar Perez Herrero, Eva M ... P. Peng, N. H. Voelcker, S. Kumar and H. J. Griesser, "Nanoscale Eluting Coatings based on Alginate/Chitosan Hydrogels," ...
... alginate/Alg) in combination with a naturally obtained biomineral (nano cockle shell powder/nCP) through lyophilization ... Alginate nano cockle shell powder scaffolds (Alg-nCP) were developed by mixing preweighed nano powder into prepared alginate ... alginate/nanoTiO2 needle composite scaffolds [7], hydroxyapatite/chitosan-alginate composites [8], and others. Though results ... region [27, 28]. The characteristic peak of the -OH group of alginate observed in scaffold 5 at 3239. was observed to have ...
With this in mind, the present study aimed to produce nanocomplexes composed by alginate (Alg), a natural polymer, with AmB ... the nanocomplexes were produced utilizing sodium alginate, amphotericin B in a borate buffer (pH 11.0). The CNC was obtained by ... Table 1 Formulation of alginate (Alg) and alginate-amphotericin B (Alg-AmB) to prepare the nanocomplexes.. Full size table. ... Note: A - DSC analysis of AmB, Alg, CNC, alginate + AmB (mixture), Alg-AmB and Alg-AmB + CNC. B - FTIR of pure alginate, Alg ...
Buy CarboFlex Odor Control Alginate Dressing - 4 x 4 online at Allegro Medical. Lowest Price Guaranteed! Check out our ... Youre reviewing:CarboFlex Odor Control Alginate Dressing - 4 x 4. Your Rating. Overall Rating. 1 star 2 stars 3 stars 4 stars ... CarboFlex Odor Control Alginate Dressing 4 x 4". CarboFlex Advanced, multi-layered dressing effectively manages infected ... Alginate/hydrofiber layer creates moist wound interface; forms gel in the presence of drainage. Soft, nonadhesive wound contact ...
Residual activity of briquette and alginate formulations of Bacillus sphaericus against mosquito larvae / by M. Kuppusamy, S. L ... 1989)‎. Residual activity of briquette and alginate formulations of Bacillus sphaericus against mosquito larvae / by M. ...
Using bioprinting to pattern your alginate hydrogels is an innovative way to add complexity to your 3D cultures and develop ... In this white paper, we review unique methods for bioprinting sodium alginate using the Allevi 3 bioprinter, involving pre- ...
In conclusion, a combination of HPMC E15, sodium alginate 20cP, and EC N22 with the most HPMC E15 produced the highest ... The Effect of Different Ratios of the Hydrophilic Polymers Sodium Alginate 20cP and Hydroxy Propyl Methyl Cellulose E15 on the ... Keywords: meloxicam, patch, hydroxy propyl methyl cellulose, sodium alginate, ethyl cellulose. Suggested Citation: Suggested ... The hydrophilic polymers used were Sodium alginate 20 cP and Hydroxy Propyl Methyl Cellulose (HPMC) E15. Several comparisons ...
Order Jacquard Sodium Alginate, Craft Supplies, 2 Oz. SH, 2/Pk today at Quill.com and get fast shipping. Stack coupons to get ... Jacquard Sodium Alginate, Craft Supplies, 2 Oz. SH, 2/Pk. Order Jacquard Sodium Alginate, Craft Supplies, 2 Oz. SH, 2/Pk today ... Jacquard Sodium Alginate, Craft Supplies, 2 Oz. SH, 2/Pk $30.99 Pack IN-STOCK. Limited quantity. available 3 Remaining) ... Sodium alginate is used to thicken the dye to a paste consistency for printing and hand painting. Use Sodi ...
Residual activity of briquette and alginate formulations of Bacillus sphaericus against mosquito larvae / by M. Kuppusamy, S. L ... 1989)‎. Residual activity of briquette and alginate formulations of Bacillus sphaericus against mosquito larvae / by M. ...
Alginate - 1-lb. Pkg., 9727277 at Nasco. You will find a unique blend of products for Arts & Crafts, Education, Healthcare, ...
Layup mold alginate requirements are based on square inches of area to be covered by the alginate. Since alginate is usually ... The bucket holds the alginate and keeps it in place.. In a Bucket Mold, the alginate fills the space between the hand and the ... How much Accu-Cast alginate do I need?. Article courtesy of Smooth-On, Inc.. As you may know, there are two basic types of ... This area could easily be done with just one pound of alginate. Always mix a little extra because it is MUCH better to have a ...
... Description: Rebalances the skin by removing impurities and excess sebum. Sea ... Youre reviewing:ET Men Multi-active Alginate Masque Pack of 5. Your Rating. Rating. 1 star 2 stars 3 stars 4 stars 5 stars ...
Immobilization of myoglobin in sodium alginate composite membranes Katia Cecília de Souza Figueiredo Instituto Alberto Luiz ... Sodium alginate, SA, and KCl were dissolved in distilled water in room temperature. Myoglobin was added to the solution in the ... Regarding the sodium alginate aqueous solution (Figure 2a), the triplicates showed low deviation. The decrease on the permeate ... Sodium alginate was chosen as the polymeric matrix for the immobilization of myoglobin because of its industrial and upcoming ...
"Alginate is a pliable material - it is soft, but not too soft," Dr. Chen said. "It has to be able to poke the dermis, and while ... The base of the experimental patch is material called alginate, a gum-like natural substance extracted from brown algae. It is ... New alginate skin patch for type 2 diabetes. Jan 3, 2018 , Innovations ... Chens team infused the alginate with a formula of biochemical particles that stimulates the bodys own insulin production when ...
The alginate oligomer fermentation project, ALGIFERM, translates 20 years of academic research into an industrial scale ... CPI Work with AlgiPharma to Scale up Alginate Oligomers. 17 Jun 2013. The Centre for Process Innovation Ltd (UK) is leading the ...
Development of sodium alginate and konkoli gumgrafted- polyacrylamide blend membrane: optimization of grafting conditions * SA ... This experiment is a continuation of our effort to develop a blend membrane of sodium alginate and "konkoli" gum-g- ...
You searched for: Journal name Process biochemistry Remove constraint Journal name: Process biochemistry Subject alginates ... Remove constraint Subject: alginates Subject ascorbic acid Remove constraint Subject: ascorbic acid Subject term ascorbic acid ... Sargassum muticum; algae; alginates; antioxidant activity; ascorbic acid; cytotoxicity; enzymatic treatment; enzyme activity; ... Whole algae (Sm) and residual algae from alginate production (AESm) were employed as feedstock. Aqueous enzyme treatment with ...
Cell Adhesion to RGD-Alginate Is Modulated by Substrate Mechanics Nicholas G. Genes, Nicholas G. Genes ... Alginate in solution is crosslinked in the presence of multivalent cations, making it a useful polymer for drug delivery and ... "Cell Adhesion to RGD-Alginate Is Modulated by Substrate Mechanics." Proceedings of the ASME 2001 International Mechanical ...
Probing insulins secondary structure after entrapment into alginate/chitosan nanoparticles. Research output: Contribution to ... Probing insulins secondary structure after entrapment into alginate/chitosan nanoparticles. / Sarmento, B.; Ferreira, D. C.; ... Probing insulins secondary structure after entrapment into alginate/chitosan nanoparticles. European Journal of Pharmaceutics ... Probing insulins secondary structure after entrapment into alginate/chitosan nanoparticles. In: European Journal of ...
Since this alginate/chitosan membrane is stable in a simulated vaginal environment, is easy to fabricate and can be used for ... Since this alginate/chitosan membrane is stable in a simulated vaginal environment, is easy to fabricate and can be used for ... Since this alginate/chitosan membrane is stable in a simulated vaginal environment, is easy to fabricate and can be used for ... Since this alginate/chitosan membrane is stable in a simulated vaginal environment, is easy to fabricate and can be used for ...
Return to Article Details Effects of Alginate Encapsulation on the Vertebral Bone Adherent Mesenchymal Stromal Cell Paracrine ...
Smith, A. M., Harris, J. J., Shelton, R. M., & Perrie, Y. (2007). 3D culture of bone-derived cells immobilised in alginate ... keywords = "alginate, gelation, liposomes, photosensitive, bone cells",. author = "Smith, {Alan M.} and Harris, {Jonathan J.} ... Smith AM, Harris JJ, Shelton RM, Perrie Y. 3D culture of bone-derived cells immobilised in alginate following light-triggered ... 3D culture of bone-derived cells immobilised in alginate following light-triggered gelation. In: Journal of Controlled Release ...
Injectable BMP-2 delivery system based on collagen-derived microspheres and alginate induced bone formation in a time-and dose- ... Injectable BMP-2 delivery system based on collagen-derived microspheres and alginate induced bone formation in a time-and dose- ... based on an injectable hydrogel composed of BMP-2-loaded recombinant collagen-based microspheres and alginate, was previously ...
  • For intervention, a dietary supplement of modified citrus pectin: sodium alginate (2:1) was recommended based on research supporting abilities to lower heavy metal toxicity. (nih.gov)
  • For this reason, the nanocomplexes were produced utilizing sodium alginate, amphotericin B in a borate buffer (pH 11.0). (nature.com)
  • In this white paper, we review unique methods for bioprinting sodium alginate using the Allevi 3 bioprinter, involving pre-crosslinking it with calcium chloride solution, coaxial printing of hollow tubes core-shell structures, and embedded printing with FRESH support. (3dsystems.com)
  • The hydrophilic polymers used were Sodium alginate 20 cP and Hydroxy Propyl Methyl Cellulose (HPMC) E15. (ssrn.com)
  • In conclusion, a combination of HPMC E15, sodium alginate 20cP, and EC N22 with the most HPMC E15 produced the highest physicochemical characteristics. (ssrn.com)
  • Order Jacquard Sodium Alginate, Craft Supplies, 2 Oz. SH, 2/Pk today at Quill.com and get fast shipping. (quill.com)
  • Sodium alginate is used to thicken the dye to a paste consistency for printing and hand painting. (quill.com)
  • The immobilization of myoglobin in sodium alginate films was investigated with the aim of evaluating the protein stability in an ionic polymeric matrix. (scielo.br)
  • Sodium alginate, being a natural polysaccharide, was selected as the polymeric matrix because of its chemical structure and film-forming ability. (scielo.br)
  • To improve the mechanical resistance of sodium alginate films, the polymer was deposited over the surface of a cellulose acetate support by means of ultrafiltration. (scielo.br)
  • The ionic crosslink of sodium alginate was investigated by calcium ions. (scielo.br)
  • A good affinity between sodium alginate and cellulose acetate was observed. (scielo.br)
  • This experiment is a continuation of our effort to develop a blend membrane of sodium alginate and "konkoli" gum-g-polyacrylamide (KG-g-PAAm) for bioremediation of wastewater. (ajol.info)
  • Here, through the cross-linking of sodium alginate (SA) with metal cations, a high-performance hydrogel binder is developed that maintains the stability of MnO2 cathodes in an aqueous electrolyte. (edu.au)
  • One millilitre of enzyme (10 U) was added to 9 ml of substrate solution [0.3% (w/v) high-viscosity sodium alginate, 100 mM NaCl, 20 mM PB, optimal pH], followed by incubation at 30 °C for 0, 1, 5, 10, 30 and 60 min. (biomedcentral.com)
  • b The time-course of sodium alginate degradation by the W295A mutant was determined by TLC. (biomedcentral.com)
  • From a technical standpoint, this study investigated the effect of PGX processing parameters on the physicochemical properties of sodium alginate (SA), a water-soluble polysaccharide from brown algae. (ceapro.com)
  • ALGMA is a methacrylated derivative of sodium alginate. (polbionica.com)
  • I used the immersion blender to mix up the coke and one of the sachets (sodium alginate), and let it sit for an hour. (friscokids.net)
  • Kelp also produces a compound called sodium alginate. (listvidz.com)
  • Qualitatively, transport of the magnetic nanoparticles was significantly influenced by the application of a magnetic field in the alginate model (Fig. 1). (igert.org)
  • Fig. 1 demonstrates that magnetic nanoparticles have increased bulk transport through alginate when exposed to a magnetic field. (igert.org)
  • Though witnessed qualitatively, bulk transport of magnetic nanoparticles was further quantified within the alginate solution using a side-by-side diffusion apparatus. (igert.org)
  • The permeability of the magnetic nanoparticles through the model alginate biofilm was enhanced 13.6 fold using an external magnetic field relative to the control (no magnetic field). (igert.org)
  • Fluorescent magnetic nanoparticles possessing different surface functional groups were individually evaluated for transport behavior in the alginate biofilm model. (igert.org)
  • Significant increases in transport rates of iron oxide nanoparticles through alginate biofilm were observed in the presence of a magnetic field. (igert.org)
  • IMSEAR at SEARO: Alginate nanoparticles as antituberculosis drug carriers: formulation development, pharmacokinetics and therapeutic potential. (who.int)
  • METHODS: Alginate nanoparticles were prepared by the controlled cation induced gelification method and administered orally to mice. (who.int)
  • CONCLUSIONS: Alginate nanoparticles appear to have the potential for intermittent therapy of TB. (who.int)
  • Green nanotechnology for the development of nanoparticles based on alginate associated with essential and vegetable oils for application in fruits and seeds protection. (bvsalud.org)
  • A slow release system, based on an injectable hydrogel composed of BMP-2-loaded recombinant collagen-based microspheres and alginate, was previously developed. (eur.nl)
  • The addition of alginate hydrogel did significantly stimulate wound healing compared to the untreated animals, but the addition of 2-deoxy-d-ribose at either 5 or 10% further and significantly improved the rate of wound healing. (lancs.ac.uk)
  • From hydrogel and hydrocolloid to alginate dressings, we have a wide range of options on offer. (hotreg.hu)
  • The base of the experimental patch is material called alginate, a gum-like natural substance extracted from brown algae. (algaeindustrymagazine.com)
  • With this in mind, the present study aimed to produce nanocomplexes composed by alginate (Alg), a natural polymer, with AmB covered by nanocrystals from bacterial cellulose (CNC). (nature.com)
  • Alginate-immobilized thermotolerant yeast for conversion of cellulose to ethanol. (ulster.ac.uk)
  • Regenerated oxidized cellulose (ROC) and alginate calcium (AC) are indicated for surgical hemostasis and there is no robust evidence for its use in the control of MW bleeding. (bvsalud.org)
  • In this work, we developed an alginate/chitosan membrane sufficiently stable in a simulated vaginal fluid and able to dissolve over time at a very slow and linear rate. (dtu.dk)
  • Metronidazole was effectively included in the alginate/chitosan membrane and its bactericide effect was demonstrated against Staphylococcus aureus and Gardnerella vaginalis, simultaneously showing good biocompatibility with a cervix epithelial cell line. (dtu.dk)
  • Since this alginate/chitosan membrane is stable in a simulated vaginal environment, is easy to fabricate and can be used for the controlled release of a model drug, it represents a promising drug delivery system for local intravaginal applications. (dtu.dk)
  • Following recent work from our group on a small ribose-derived sugar 2-deoxy-d-ribose which stimulates angiogenesis in a chick chorionic allantoic membrane bioassay and in skin wounds in healthy rats, we tested the effect of this sugar when added to a common alginate wound dressing in a well-accepted diabetic skin wound model in rats. (lancs.ac.uk)
  • An ester of butanediol-alginate has been studied as a possible hemodialysis membrane. (kemkes.go.id)
  • With 1,4-butanediol molar ratio of 0.1, 0.5, and 1.0, it showed that the membrane mechanical properties, stability, protein adsorption, platelet adhesion and performance for urea and creatinine clearance are better than that of unmodified alginate. (kemkes.go.id)
  • Objective The aim of this study was to evaluate in vivo the biological response after implantation of a novel alginate-capsule membrane. (bvsalud.org)
  • Conclusion Considering the results obtained, it is possible to conclude that the novel alginate-capsule membrane is partially reabsorbable but with low biocompatibility, requiring more tests to validate its clinical use. (bvsalud.org)
  • Using bioprinting to pattern your alginate hydrogels is an innovative way to add complexity to your 3D cultures and develop novel applications using this biomaterial. (3dsystems.com)
  • Promising hydrogels are hyaluronic acid, alginate or agarose as well as synthetic hydrogels based on Polyethylene glycol, Polyvinyl alcohol (PVA) or Polyacrylate. (anton-paar.com)
  • Natural melanin/alginate hydrogels achieve cardiac repair through ros scavenging and macrophage polarization. (channel969.com)
  • The calcium-alginate dressing with excellent conformability. (hartmann.info)
  • Sorbalgon Ag is a sterile, silver containing calcium alginate dressing composed with soft, textile fibers of calcium alginate, carboxymethylcellulose and ionic silver complex. (klinemedicalsupply.com)
  • The most striking result was seen in the effect of sugar on angiogenesis in the wound beds where alginate alone did not improve the extent of CD34 identified blood vessels in the wound beds but the addition of sugar significantly increased these - this could be seen as early as seven days post addition of the sugar-loaded alginate dressing and was still evident at day 20. (lancs.ac.uk)
  • The superior absorption of Biatain® Alginate and the gel formation, which locks the exudate inside the dressing, prevent leakage that can damage the periwound skin. (uromed.ca)
  • Contrary to hydrofibre dressings, Biatain® Alginate has documented hemostatic effect, i.e. the ability to arrest blood flow in minor bleedings due to the release of calcium ions from the dressing. (uromed.ca)
  • Biatain® Alginate is an alginate dressing consisting of 85% alginate and 15% carboxymethylcellulose (CMC). (uromed.ca)
  • Spray Freeze-Drying as an Alternative to the Ionic Gelation Method to Produce Chitosan and Alginate Nano-Particles Targeted to the Colon Gamboa A, Araujo V, Caro N, Gotteland M, Abugoch L, Tapia C Abstract Chitosan and alginate nano-composite (NP) carriers intended for colonic delivery containing prednisolone and inulin were obtained by two processes. (powderpro.se)
  • Prior to undertaking the animal study, we assessed in vitro release of sugar loaded from alginate dressings loaded with either 5 or 10% 2-deoxy-d-ribose. (lancs.ac.uk)
  • Alginate dressings are made to offer effective protection for wounds that have high amounts of drainage, and burns, venous ulcers, packing wounds, and higher state pressure ulcers. (hotreg.hu)
  • A novel porous three-dimensional bone scaffold was developed using a natural polymer (alginate/Alg) in combination with a naturally obtained biomineral (nano cockle shell powder/nCP) through lyophilization techniques. (hindawi.com)
  • Alginate (Alg) is a polymer extracted from natural sources, widely used in the pharmaceutical area and in tissue engineering. (nature.com)
  • Alginate in solution is crosslinked in the presence of multivalent cations, making it a useful polymer for drug delivery and tissue engineering. (asme.org)
  • Alginate (a natural polymer) based nanoparticulate delivery system was developed for frontline ATDs (rifampicin, isoniazid, pyrazinamide and ethambutol). (who.int)
  • The physicochemical characteristics of these spheroids were examined and compared against MCC-Ioaded alginate spheroids using chlorpheniramine maleate and tolbutamide as water-soluble and poorly water-soluble drugs respectively. (uitm.edu.my)
  • Biatain® Alginate can be used on all moderate to heavily exuding partial to full thickness wounds. (uromed.ca)
  • Biatain® Alginate may assist in supporting the control of minor bleeding in superficial wounds. (uromed.ca)
  • Biatain® Alginate should not be used on dry or lightly exuding wounds or to control heavy bleeding. (uromed.ca)
  • Biatain® Alginate is indicated for pressure ulcers, venous leg ulcers, arterial ulcers, diabetic foot ulcers, donor sites or traumatic wounds. (uromed.ca)
  • One such naturally occurring polysaccharide that is widely studied in tissue engineering and drug delivery system is alginate. (hindawi.com)
  • Alginate is an anionic polysaccharide which, due to its biocompatibility and biodegradability to non-toxic products, can be successfully used in pharmacy, biomedicine and tissue reconstruction. (polbionica.com)
  • Alginate bead-encapsulated PEDF induces ectopic bone formation in vivo in the absence of co-administered mesenchymal stem cells. (edu.au)
  • Calcium alginate swabs or swabs with wooden shafts-both of which may contain substances that inactivate some viruses and inhibit polymerase chain reaction (PCR) testing-should not be employed. (medscape.com)
  • The cross-linking and gelation of the alginate can be easily tailored to produce the desired characteristics such as porosity and mechanical stability. (hindawi.com)
  • We demonstrate that pigment epithelium-derived factor (PEDF), one such factor that is known to be potent against angiogenesis, promotes osteoblastogenesis in mesenchymal stem cells in vitro, but does not need co-encapsulation of cells in alginate bead scaffolds for osteogeneration in vivo. (edu.au)
  • We have found that 1 pound of alginate mixed 4:1 (water to powder by weight) has a total volume of approximately 137 cubic inches. (reynoldsam.com)
  • En: Starch: Chemistry and Technology. (rmiq.org)
  • SternVantage Alginate Alternative is designed to provide predictable, dimensionally stable, and is easy-to-use-the characteristics clinicians and dental lab technicians have come to expect in an alginate substitute. (dentalproductsreport.com)
  • Whole algae (Sm) and residual algae from alginate production (AESm) were employed as feedstock. (usda.gov)
  • Norwegian company FMC Biopolymer converts seaweed to alginate for use in thousands of products with an advanced 24 hour chemical process. (mercopress.com)
  • Conclusions: The tested alginates can only be safely stored for up to two hours after their cure. (bvsalud.org)
  • It was shown that stimulation of the photosensitive lipid using a light emitting diode (LED) (peak emission at 385 nm, dose equivalent to 9 mJ/cm2) caused the release of liposome-entrapped CaCl2, resulting in cross-linking of the alginate solution and immobilisation of bone-derived cells over a range of seeding densities, approximately 97% of which remained viable for periods of up to 14 days in culture. (aston.ac.uk)
  • For nearly 60 years, FMC Biopolymer has harvested kelp from the sea to produce alginate. (mercopress.com)
  • Dr. Chen's team infused the alginate with a formula of biochemical particles that stimulates the body's own insulin production when needed and curtails that stimulation when normal blood sugar concentration is reached. (algaeindustrymagazine.com)
  • As you may know, there are two basic types of alginate molds- The "Bucket Mold" (hands, etc.) and the "Layup Mold" (faces, torsos, etc. (reynoldsam.com)
  • Remember, we recommend our 270-D, 370-SD, 380-CC, 390-S2 and 570-PGV alginates for bucket molds. (reynoldsam.com)
  • Aim: The objective of this study was to 5 evaluate the dimensional stability os the molds of two different alginates (Cavex Color Changer and Hydrogum®5), at different intervals, kept in environments, as recommended by manufacturers, using two different devices (D1 and D2, figures 1 and 2, respectively). (bvsalud.org)
  • The effect of alginate on the invasion of cystic fibrosis respiratory epithelial cells by clinical isolates of pseudomonas aeruginosa. (cdc.gov)
  • Alginate spheroids demonstrated a slower release of hydrophilic drug due to ease of matrix swelling and aggregation in the absence of MCC. (uitm.edu.my)
  • This study examined the thrombogenicity of expanded polytetrafluoroethylene (ePTFE) vascular graft segments (10 mm long x 4 mm i.d.) in vitro before and after impregnation with saline, alginate, or alginate containing the stable prostacyclin analog, iloprost. (duke.edu)
  • These data demonstrate that denucleation of ePTFE with iloprost in alginate dramatically decreases its in vitro thrombogenicity. (duke.edu)
  • Alginate beads that release semiochemical compounds are interesting biological control devices used to attract the natural enemies of aphids in infested crops. (ac.be)
  • The objective of this scoping study was to investigate the impact of temperature, relative humidity and wind speed, on the release of E - β -caryophyllene from alginate beads. (ac.be)
  • The impact of the three climatic factors on the release of E - β -caryophyllene from alginate beads was evaluated using a Box-Behnken experimental design and a laboratory scale volatile collection system. (ac.be)
  • In this study, glucose isomerase enzyme was entrapped into modified and nonmodified calcium alginate gel beads. (metu.edu.tr)
  • 05). Alginate alone was not significantly different from controls. (duke.edu)
  • Aiming to highlight the valorization of the natural products and the green synthesis processes, this work describes the development of a nanoscale system based on the use of alginate to encapsulate a blend of oils ( vegetable and essential oils ), not previously reported, with antibacterial and antioxidant actions. (bvsalud.org)
  • Discover how to improve texture with this High-Tech Veggie Burger and our binder (Bindly GBA) based on Alginates. (bindly.eu)
  • Create original shapes structuring fruit with our binder (Bindly GBA) based on Alginates. (bindly.eu)
  • The present study investigated formulation and processing attributes in extrusion and spheronization necessary for design of MCC-free alginate spheroids. (uitm.edu.my)
  • L'impact des trois facteurs climatiques sur la diffusion de l' E - β -caryophyllène à partir de billes d'alginate a été évalué en utilisant un plan d'expérience de type Box-Behnken et un système en laboratoire de collecte des composés volatils. (ac.be)
  • Heureusement, cette augmentation de la teneur en eau n'a pas affecté la forme des billes, ce qui facilite le calcul du taux de diffusion de ce sémiochimique. (ac.be)
  • The Alginate Alternative is said to work complementarily with other SternVantage products, such as Putty Monophase, and LightBody. (dentalproductsreport.com)
  • Such an extensive screening program has enabled Ceapro to expand its pipeline and retain the most promising products, such as PGX-processed alginate as a stand alone and/or in combination with other bioactives like Co-enzyme Q10 to form new chemical complexes that can act as delivery systems under different forms of administration. (ceapro.com)
  • Alginates are recognized world-wide as products that may be used freely in foodstuffs as emulsifying or stabilising agents. (europa.eu)

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