• We studied the stability of colloidal suspensions of iron oxide nanoparticles with grafted poly(ethylene glycol) of various molecular weights in aqueous media, buffers, and cell culture media. (aiche.org)
  • Colloidal gold is a sol or colloidal suspension of nanoparticles of gold in a fluid, usually water. (wikipedia.org)
  • The properties of colloidal gold nanoparticles, and thus their potential applications, depend strongly upon their size and shape. (wikipedia.org)
  • The important technique to enhance the stability of nanoparticles in fluids is the use of surfactants. (hindawi.com)
  • In this method, the processes of drying, storage, transportation, and dispersion of nanoparticles are avoided, so the agglomeration of nanoparticles is minimized, and the stability of fluids is increased [ 5 ]. (hindawi.com)
  • Earlier this month, Alfa Chemistry unveiled a new product line of colloidal materials for scientists engaged in relevant research providing customers across the globe with easy access to comprehensive colloidal materials, including: colloidal catalysts, colloidal nanoparticles, hydrocolloids, and colloidal silica. (thomasnet.com)
  • Colloidal nanoparticles are a class of multifunctional materials, and Alfa Chemistry offers three categories of such materials: metal colloids, metal oxide colloids, and colloidal quantum dots. (thomasnet.com)
  • The stability of nanocomplexes (siRNA loaded lipid nanoparticles) in very complexe colonic media is still under evaluation and optimization , yet major achievments were already completed. (cea.fr)
  • The main goal of these detailed experimental and theoretical studies is to improve understanding of the inter-particle forces which cause the dispersions of colloidal particles or nanoparticles to agglomerate, or to remain stable. (purdue.edu)
  • The main objectives include gaining an insight into how the surface characteristics of carbon support materials affect activity, selectivity and stability of supported metal nanoparticles in liquid-phase oxidations of alcohols and aldehydes, as well as understanding whether surface basic groups on carbon support can replace homogeneous base used as a co-catalyst. (europa.eu)
  • Long-term colloidal stability and model compound retention within the nanoparticles was found when analyzed in cell media at body temperature. (rsc.org)
  • Professor Corti's research focuses on understanding the thermophysical and kinetic properties of a variety of soft condensed-phase systems, including liquids and colloidal dispersions. (purdue.edu)
  • The precise control of colloidal dispersions rests upon our knowledge of the forces that arise between colloidal particles and between particles and surfaces of various shapes. (purdue.edu)
  • We are currently developing theoretical and simulation methods to predict the magnitude and range of entropic forces between particles and between particles and surfaces of various shapes, to investigate phase separations in model colloidal dispersions, and to estimate coagulation/deposition rates and the kinetics of the phase transitions exhibited by entropically controlled dispersions. (purdue.edu)
  • In collaboration with Prof. Elias I. Franses, we are studying the "Aqueous Dispersion Stability of Inks and Ink-Like Model Colloidal Dispersions. (purdue.edu)
  • In addition, we study the colloidal stability of dispersions of hydrates particles formed by complexes of hydrocarbons and water. (purdue.edu)
  • 5.8 Stability and changes of colloids and coarse dispersions. (researchandmarkets.com)
  • Particles are sometimes added during droplet formation to replace surfactants as surface active agents and improve the stability of the dispersions [1,2]. (aps.org)
  • The stability of dispersions containing charged particles may obviously be regulated by salt. (lu.se)
  • Colloidal silica is a dispersion of nano-sized silica particles in water or other solvents. (thomasnet.com)
  • Alfa Chemistry's colloidal silica product portfolio covers conventional, quick-drying, modified, organic solvent-based, and non-spherical in large and small particle sizes. (thomasnet.com)
  • The CRM was produced from a buffer-modified and diluted commercial colloidal silica slurry. (nist.gov)
  • designed, synthesized, and investigated the effects of a cationic comb polymer on the stability of aqueous silica suspensions of varying ionic strength and pH. (rpi.edu)
  • Colloidal silica (particle diameter of 7nm) was added at 0.05wt% to adjust the viscosity of the sealers. (bvsalud.org)
  • In other words, nanofluids are nanoscale colloidal suspensions containing condensed nanomaterials. (hindawi.com)
  • Areas of interest include the stability of colloidal suspensions, ageing of particle networks, rheology and enhancement of biodelivery of actives through formulation design. (soci.org)
  • Lubricating grease is a kind of colloidal dispersion system. (hadezign.com)
  • The project may lead to innovative theories, models, and simulations, and industrial guidelines on how to control dispersion stability, and ultimately to new ways of making improved inks. (purdue.edu)
  • Experimental and theoretical study of forces between surfaces and colloidal particles. (edu.au)
  • The laboratory sessions deal with key experimental techniques such as QCM (quartz crystal microbalance), calorimetry, AFM (atomic force microscopy) and experimental studies of colloidal stability in milk. (lu.se)
  • Experimental evidence that light-induced defects causing meta-stability effects in halide perovskite semiconductors. (lu.se)
  • Primarily an experimental annoyance, transient electronic/ionic phenomena raise concerns about the long-term operational stability of halide perovskite optoelectronics but also enable self-healing. (lu.se)
  • We confirm that the polymer binds strongly through a multidentate binding motif and provides superior colloidal stability in polar solvents over months by IR and Raman spectrometry and zeta potential measurements. (rsc.org)
  • The colloidal stability of the final formulation was affected by the type of incorporated nucleic acids (NAs) and decreased with the degree of base-pairing, as polyU induced extensive particle aggregation. (lu.se)
  • Wellness Colloidal Silver™ is produced using a unique electrical process that creates homogeneity, minute particle size, and stability of the silver particles. (fredmeyer.com)
  • Colloidal drug aggregates have been a nuisance in drug screening, yet, because they inherently comprise drug-rich particles, they may be useful in vivo if issues of stability can be addressed. (regis.edu)
  • The theoretical component (7.5 credits) deals with surface and colloid chemistry from a molecular physicochemical perspective The key topics comprise the self-association of amphiphilic molecules, polymers in colloidal systems, phase equilibria in solutions, interface phenomena, electrostatic exchange in colloidal systems and forces between macro and mesoscopic surfaces separated by a liquid phase. (lu.se)
  • Colloidal stability and polymers. (wur.nl)
  • The computer simulations concern polymers and electrostatic phenomena in colloidal systems. (lu.se)
  • Therefore, this article aimed to review recent advances in the ZPCs that can be applied to functional or health -promoting foods , with a focus on the characteristics of different ZPCs, factors and mechanisms affecting the stability (especially thermal stability) of these complexes, and their application in food industry as a carrier for BCs. (bvsalud.org)
  • Influence of nanoparticle surface functionalization on the thermal stability of colloidal polystyrene films. (mpg.de)
  • Emulsion and colloidal stability and flocculation. (edu.au)
  • TSH was initially measured using bioassay on colloidal tissue isolated from the guinea pig thyroid gland and an international unit was defined as the minimum amount of TSH that would elicit a biological response (stimulation of thyroid cAMP cyclase activity in these preparations). (medscape.com)
  • Chemistry) was presented with the LUM Young Scientist Award for his innovative application of an industrial colloidal stability analyzer. (uu.nl)
  • Van Rijssel was able to determine their interactions by using X-ray diffusion techniques and quantitative cryogenic electron microscopes, building on the pioneering work at Physical and Colloidal Chemistry by his predecessor Mark Klokkenburg. (uu.nl)
  • The aim of the research is to understand a) the fundamental steps of powder processing especially colloidal chemistry, powder packaging and consolidation and b) the physical and chemical basic behind these various technologies to improve the processing routes for materials of technological and economical importance. (epfl.ch)
  • It is all science that relates to the design, performance, stability, testing and manufacture of formulations, from biology to mathematics, physics to biochemistry, chemistry to engineering to name but a few. (soci.org)
  • Thanks to Van Rijssel's research, the stability analyzer can now be used to measure the magnitude of the interactions between quantum dots in a solution. (uu.nl)
  • For this, Van Rijssel needed the equilibrium profiles for the concentration of colloidal quantum dots in a solution. (uu.nl)
  • Therefore, understanding the possible mechanism of calcium influence on the colloidal stability of casein micelles may be the key to control the process of milk coagulation. (kemsu.ru)
  • Next, the breakup modes of a drop containing a colloidal suspension of carbon black with OLOA is probed. (aiche.org)
  • Our work shows that breakup modes of a drop of a colloidal suspension under electric fields could be used to quickly assess the stability of the suspension. (aiche.org)
  • LTP s special interest is the research of the colloidal behaviour of suspension with inorganic particles. (epfl.ch)
  • These studies demonstrate the potential of turning the nuisance of colloidal drug aggregation into an opportunity for drug-rich formulations. (regis.edu)
  • Protein aggregation-conformational stability and colloidal stability. (colorado.edu)
  • Between-ampoule homogeneity was quantified and stability during dispatch and storage were assessed in accordance with ISO Guide 35:2017. (nist.gov)
  • It is evident that calcium ions are involved in maintenanceof milk coagulation stability, but the molecular mechanism of how these ions influence micellar caseins system is not fully known. (kemsu.ru)
  • Thus, the role of calcium in maintenance of the colloidal stability of milk is quite an urgent problem. (kemsu.ru)
  • Coagulative stability of milk and its change in the production process, of course, is due to features of the structure and functional properties of milk as a colloidal system. (kemsu.ru)
  • As the first step toward answering this question, we optimized colloidal drug aggregate formulations using a fluorescence-based assay to study fulvestrant colloidal formation and stability in high (90%) serum conditions in vitro. (regis.edu)
  • The book introduces information on the formation of colloidal gold and its medical uses. (wikipedia.org)
  • In situ observation of cluster formation during nanoparticle solution casting on a colloidal film. (mpg.de)
  • Son domaine de recherche couvre la synthèse des poudres minérales, leur caractérisation et la modification des surfaces, ainsi que la mise en forme et le frittage. (epfl.ch)
  • The existence and dynamic generation, migration, and annihilation of ionic defects in halide perovskite semiconductors give rise to a number of dynamic phenomena and meta-stabilities that have been observed early on in the community such as hysteresis (Unger et al. (lu.se)
  • We are also active in analytical and computational modeling of biological and colloidal systems. (lu.se)
  • The experimentally observed nonmonotonic dependence of colloidal stability on the salt concentration is reproduced using MC simulations as well as cPB calculations. (lu.se)
  • Colloidal Drug Aggregate Stability in High Serum Conditions and Pharma" by Ahil N. Ganesh, Ahmed Aman et al. (regis.edu)
  • Due to their comparably easy synthesis and high stability, various gold particles have been studied for their practical uses. (wikipedia.org)
  • High Colloidal Stability. (basf.com)
  • They are waterborne binders with high colloidal stability, very well compatible with cobinders like CMC. (basf.com)
  • exhibited very high colloidal stability and a good safety profile. (cea.fr)
  • Nanostructured materials consisting of carbon nanotubes (CNTs) and nanodiamonds (NDs) possess a combination of outstanding functional properties of two constituents, e.g. high electrical and thermal conductivity, mechanical and chemical stability, large surface area. (nature.com)
  • If charge reversal takes place, there is typically a salt concentration regime within which colloidal stability increases with added salt. (lu.se)
  • Using fulvestrant and an investigational pro-drug, pentyloxycarbonyl-(p-aminobenzyl) doxazolidinylcarbamate (PPD), as proof-of-concept colloidal formulations, we demonstrate that the in vivo plasma half-life for stabilized colloids is greater than their respective monomeric forms. (regis.edu)
  • Since he was already interested in the properties of light and matter, Faraday further investigated the optical properties of the colloidal gold. (wikipedia.org)
  • Apart from Zsigmondy, Theodor Svedberg, who invented ultracentrifugation, and Gustav Mie, who provided the theory for scattering and absorption by spherical particles, were also interested in the synthesis and properties of colloidal gold. (wikipedia.org)
  • The purpose of this paper will focuses on the new preparation methods and stability mechanisms, especially the new application trends for nanofluids in addition to the heat transfer properties of nanofluids. (hindawi.com)
  • We have found that basic surface groups cannot efficiently replace homogeneous base, however the surface properties of carbon support have a profound effect on the catalyst activity, selectivity and stability. (europa.eu)
  • The polymer, poly[2-(3-thienyl)-ethyloxy-4-butylsulfonate] (PTEBS), provides colloidal stability and good electron transport properties to stable, sintering-free inks. (rsc.org)
  • New root canal sealers have been developed to improve properties like sealing, solubility and dimensional stability 2-4 . (bvsalud.org)
  • Established nearly 20 years ago, our Colloidal Materials Division is capable of developing and supplying a large number of flexible and innovative colloids. (thomasnet.com)
  • All colloidal materials are of consistent quality and can be widely used in various industries, such as catalysts, functional coatings, and precision casting. (thomasnet.com)
  • This paper summarizes the recent progress on the study of nanofluids, such as the preparation methods, the evaluation methods for the stability of nanofluids, and the ways to enhance the stability for nanofluids, the stability mechanisms of nanofluids, and presents the broad range of current and future applications in various fields including energy and mechanical and biomedical fields. (hindawi.com)
  • Fluorescence correlation spectroscopy (FCS) was used to study nanoparticle stability and triggered release of a model compound in detail. (rsc.org)
  • Van Rijssel therefore used a centrifuge that is used to determine the stability, and therefore the expiration date, of colloidal products such as paint or mayonnaise. (uu.nl)
  • There is a recent trend in developing zein - polysaccharide complexes (ZPCs), which has tremendously improved the performance of zein -based colloidal carrier systems or emulsions . (bvsalud.org)
  • In this paper, we will review the new progress in the methods for preparing stable nanofluids and summarize the stability mechanisms. (hindawi.com)
  • About half a century later, English botanist Nicholas Culpepper published a book in 1656, Treatise of Aurum Potabile, solely discussing the medical uses of colloidal gold. (wikipedia.org)
  • An important class of interparticle forces is induced by the presence of other colloidal species and arises solely as a result of entropic considerations. (purdue.edu)
  • Stability studies have been performed at 30°C/75%RH (zone IVb) as long-term conditions and for six months at accelerated conditions in the packaging proposed for marketing of the product. (who.int)
  • In 1898, Richard Adolf Zsigmondy prepared the first colloidal gold in diluted solution. (wikipedia.org)
  • The ability of colloidal particles, under certain conditions, to self-organize suggests that colloidal particles could be used as precursors for advanced materials via the generation of complex microstructures. (purdue.edu)
  • The ability of grease to retain oil in the thickener's skeleton under the action of external forces is called colloidal stability. (hadezign.com)
  • The stability of its colloidal structure is often affected by temperature and pressure and is damaged to varying degrees, resulting in separation of the lubricating oil in the fixed soap fiber space skeleton. (hadezign.com)
  • Kinetic and thermodynamic methods of describing the process of stability loss in micellar system were combined in one model, using the concept of solvent quality which is defined by the second osmotic virial coefficient. (kemsu.ru)
  • Questions for discussion: What are the impacts of carrier induced defects on phase stability? (lu.se)
  • However, the development has been limited by colloidal destabilization, especially when thermal processing is involved. (bvsalud.org)
  • The colloidal gold Faraday made 150 years ago is still optically active. (wikipedia.org)
  • Further, the stability of ZPCs based emulsions under processing and physiological environments , as well some typical effective methods are introduced. (bvsalud.org)