• Synthetic nitrogen fertilizer such as urea has been key to increasing crop productivity and feeding a growing population. (futuresparity.com)
  • Thus far, urea is well-known for nitrogen recovery lower than 50% by most cropping systems due to its major part being lost on farmland for various reasons like runoff, leaching and volatilization (1). (degruyter.com)
  • Therefore, the key motives of exploring biodegradable polymers from renewable resources have been envisaged for effective urea encapsulation and to prolong the supply of nitrogen to plants through delaying its fast release in soil (4). (degruyter.com)
  • The conventional method combines hydrogen and nitrogen to make ammonia, which bonds with CO 2 to form urea. (green-reporter.com)
  • Urea serves an important role in the metabolism of nitrogen-containing compounds by animals and is the main nitrogen-containing substance in the urine of mammals. (wikipedia.org)
  • Urea is widely used in fertilizers as a source of nitrogen (N) and is an important raw material for the chemical industry. (wikipedia.org)
  • Casey, CA & Anderson, PM 1985, ' Submitochondrial localization of arginase and other enzymes associated with urea synthesis and nitrogen metabolism, in liver of Squalus acanthias ', Comparative Biochemistry and Physiology -- Part B: Biochemistry and , vol. 82, no. 2, pp. 307-315. (nebraska.edu)
  • So that, the nitrogen use efficiency in fertilizer treatments A and B with usage of 420 kg/ha was respectively increased 7/85 and 14/68% compared to urea fertilizer. (ac.ir)
  • Fertilization with a new type of coated urea evaluation for nitrogen efficiency and yield in winter wheat. (ac.ir)
  • Recently, significant advances have taken place in the use of SmI 2 for the synthesis of nitrogen heterocycles, enabled in large part by the unique combination of high reducing power of this reagent (E 1/2 of up to −2.8 V) with excellent chemoselectivity of the reductive umpolung cyclizations mediated by SmI 2 . (mdpi.com)
  • Agriculture can benefit from urea fertilizer because it contains a lot of nitrogen at a reasonable cost. (hindawi.com)
  • A large number of fertilizers especially nitrogen fertilizers like urea (NH 2 CONH 2 ) are needed to have a modern society as well as a green industry [ 3 ]. (hindawi.com)
  • As it is obvious, urea is high in nitrogen and nitrogen is a vital nutrient source for plant product development. (hindawi.com)
  • Agricultural products need nitrogen during critical growth stages, which is usually provided by conventional urea fertilizers [ 9 , 10 ]. (hindawi.com)
  • Among all solid nitrogen fertilizers, urea contains the most nitrogen (46.7%) [ 16 ] and it is hydrolyzed to ammonia and carbon dioxide in the soil. (hindawi.com)
  • Urea is a particular case because two nitrogen atoms are linked to the C-O moiety. (aanda.org)
  • The hepatic urea cycle is the major route for waste nitrogen disposal, which is chiefly generated by protein and amino acid metabolism. (medscape.com)
  • As nitrogen is converted to compounds other than urea, the load on the urea cycle is reduced. (medscape.com)
  • The nitrogen content of phenylacetylglutamine per mole is identical to that of urea (2 moles of nitrogen). (medscape.com)
  • Serves as an alternative to urea to reduce waste nitrogen levels. (medscape.com)
  • Glycerol phenylbutyrate is a nitrogen-binding agent for chronic management of adult and pediatric patients aged 2 years or older with urea cycle disorders who cannot be managed by dietary protein restriction and/or amino acid supplementation alone. (medscape.com)
  • The liver forms it by combining two ammonia molecules (NH3) with a carbon dioxide (CO2) molecule in the urea cycle. (wikipedia.org)
  • Molten urea decomposes into ammonium cyanate at about 152 °C, and into ammonia and isocyanic acid above 160 °C: CO(NH2)2 → [NH4]+[OCN]− → NH3 + HNCO Heating above 160 °C yields biuret NH2CONHCONH2 and triuret NH2CONHCONHCONH2 via reaction with isocyanic acid: CO(NH2)2 + HNCO → NH2CONHCONH2 NH2CONHCONH2 + HNCO → NH2CONHCONHCONH2 At higher temperatures it converts to a range of condensation products, including cyanuric acid (CNOH)3, guanidine HNC(NH2)2, and melamine. (wikipedia.org)
  • Urea is readily quantified by a number of different methods, such as the diacetyl monoxime colorimetric method, and the Berthelot reaction (after initial conversion of urea to ammonia via urease). (wikipedia.org)
  • Increased entry of ammonia to the brain is a primary cause of neurologic disorders, such as congenital deficiencies of urea cycle enzymes, hepatic encephalopathies, Reye syndrome, several other metabolic disorders, and some toxic encephalopathies. (medscape.com)
  • Reference serum levels are less than 35 µmol/L. Excess ammonia is excreted as urea, which is synthesized in the liver through the urea cycle. (medscape.com)
  • Sources of ammonia include bacterial hydrolysis of urea and other nitrogenous compounds in the intestine, the purine-nucleotide cycle and amino acid transamination in skeletal muscle, and other metabolic processes in the kidneys and liver. (medscape.com)
  • Ammonia is a product of the metabolism of proteins and other compounds, and it is required for the synthesis of essential cellular compounds. (medscape.com)
  • The urea cycle is a process in which waste (ammonia) is removed from the body. (medlineplus.gov)
  • The liver produces several chemicals (enzymes) that change ammonia into a form called urea, which the body can remove in the urine. (medlineplus.gov)
  • People with a urea cycle disorder have a defective gene that makes the enzymes needed to break down ammonia in the body. (medlineplus.gov)
  • Input and feed of the urea unit are taken from the output of the ammonia unit (CO 2 and NH 3 ). (hindawi.com)
  • Hence, in this study, two methods of CO 2 recovery from combustion gases and CO 2 recycling in ammonia units will be used to increase urea production to realize low-carbon and industrial systems (including green agriculture). (hindawi.com)
  • Urea is produced industrially by the reaction of ammonia and carbon dioxide at high pressures (13 to 30 MPa) and high temperatures (170 to 200°C) [ 18 ]. (hindawi.com)
  • Ornithine transcarbamylase (OTC) deficiency is an X-linked genetic disorder of the urea cycle that leads to elevated levels of ammonia in the blood. (medscape.com)
  • Decreases hyperammonemia by converting ammonia into urea. (medscape.com)
  • Here, we describe the synthesis of a new heptamethine indocyanine dye (NIR-27) modified with a glycine at the end of each N-alkyl side chain, and its biological characterization for in vivo cancer-targeted NIR imaging. (dovepress.com)
  • Here, we report on a more-sustainable electrocatalytic approach that allows for direct and selective synthesis of urea from nitrate and carbon dioxide with an indium hydroxide catalyst at ambient conditions. (futuresparity.com)
  • The electrochemical co-reduction of carbon dioxide (CO2) and nitrate (NO3−) to urea via C-N bond coupling is a promising alternative to traditional industrial processes that are intensive in energy consumption and CO2 emission. (unist.ac.kr)
  • In 1828 Friedrich Wöhler discovered that urea can be produced from inorganic starting materials, which was an important conceptual milestone in chemistry. (wikipedia.org)
  • By virtue of its tendency to form porous frameworks, urea has the ability to trap many organic compounds. (wikipedia.org)
  • Ureas describes a class of chemical compounds that share the same functional group, a carbonyl group attached to two organic amine residues: R1R2N−C(=O)−NR3R4, where R1, R2, R3 and R4 groups are hydrogen (-H), organyl or other groups. (wikipedia.org)
  • or anabolic - the building up (synthesis) of compounds (such as proteins, carbohydrates, lipids, and nucleic acids). (wikipedia.org)
  • This "in vitro" synthesis of organic matter disproved the common theory (vitalism) about the vis vitalis , a transcendent "life force" needed for producing organic compounds. (lumenlearning.com)
  • In this study we present a new isocyanate-free method to produce polyureas by Ru-catalyzed carbene insertion into the N-H bonds of urea itself in combination with a series of bis-diazo compounds as carbene precursors. (homkat.nl)
  • The inhibition of the MraY transferase exercise by the synthetized 11 urea-containing inhibitors was evaluated and 10 compounds revealed MraY inhibition with IC50 starting from 1.9 μM to 16.7 μM. (bradnerlab.org)
  • Docking experiments predicted two modes of positioning of the lively compounds urea chain in numerous hydrophobic areas (HS2 and HS4) inside the MraY lively web site from Aquifex aeolicus. (bradnerlab.org)
  • Compounds that comprise the urea cycle are sequentially numbered, beginning with carbamyl phosphate (1). (medscape.com)
  • In these so-called clathrates, the organic "guest" molecules are held in channels formed by interpenetrating helices composed of hydrogen-bonded urea molecules. (wikipedia.org)
  • Many organic molecules have been observed in the interstellar medium thanks to advances in radioastronomy, and very recently the presence of urea was also suggested. (aanda.org)
  • In the past, mechanisms for the formation of different organic molecules were studied, providing only in a few cases energetic conditions favorable to a synthesis at very low temperature. (aanda.org)
  • However, the conventional urea production relies on energy-intensive processes, consuming approximately 2% of annual global energy. (futuresparity.com)
  • Urea is Neo-Latin, from French urée, from Ancient Greek οὖρον (oûron) 'urine', itself from Proto-Indo-European *h₂worsom. (wikipedia.org)
  • Friedrich Wöhler is widely regarded as a pioneer in organic chemistry as a result of his synthesizing of the biological compound urea (a component of urine in many animals) utilizing what is now called "the Wöhler synthesis. (lumenlearning.com)
  • Moreover, proposed biosensor was used for determination of urea concentration in urine and blood samples of healthy and sick people. (gov.pk)
  • The submitochondrial localization of the four mitochondrial enzymes associated with urea synthesis in liver of Squalus acanthias (spiny dogfish), a representative elasmobranch, was determined. (nebraska.edu)
  • In aqueous solution, urea slowly equilibrates with ammonium cyanate. (wikipedia.org)
  • For this reason, pure urea solutions should be freshly prepared and used, as aged solutions may develop a significant concentration of cyanate (20 mM in 8 M urea). (wikipedia.org)
  • Dissolving urea in ultrapure water followed by removing ions (i.e. cyanate) with a mixed-bed ion-exchange resin and storing that solution at 4 °C is a recommended preparation procedure. (wikipedia.org)
  • Alternatively, adding 25-50 mM ammonium chloride to a concentrated urea solution decreases formation of cyanate because of the common ion effect. (wikipedia.org)
  • Wöhler, however, discovered that the end product of this reaction is not ammonium cyanate (NH 4 OCN), an inorganic salt, but urea ((NH 2 ) 2 CO), a biological compound. (lumenlearning.com)
  • Furthermore, heating ammonium cyanate turns it into urea. (lumenlearning.com)
  • E. V. Vinogradova, Fors, B. P. , and Buchwald, S. L. " Palladium-catalyzed cross-coupling of aryl chlorides and triflates with sodium cyanate: a practical synthesis of unsymmetrical ureas " , J. Am. Chem. (mit.edu)
  • La0.7Sr0.3MnO3 (LSMO) nanoparticles have been obtained via solution combustion synthesis (SCS) using urea and glycine as fuels. (embs.org)
  • In the present work{,} a graphene-based ZnFe2O4 nanocomposite has been synthesized using urea-assisted auto combustion synthesis followed by an annealing step. (amrita.edu)
  • However, due to the lack of suitable catalysts, the electrochemical process for urea synthesis suffers from low faradaic efficiency, current density, and product yield, which highlights the importance of developing new catalysts that work efficiently toward the co-reduction of CO2 and nitrate NO3− (CR-CO2/NO3−) and the corresponding C-N bond coupling reactions. (unist.ac.kr)
  • This work suggests an appealing route of urea production and provides deep insight into the underlying chemistry of C-N coupling reaction that could guide sustainable synthesis of other indispensable chemicals. (futuresparity.com)
  • The electrocatalytic reaction between these building blocks could make urea production much more energy efficient. (green-reporter.com)
  • A combination of 1,1,1,3,3,3-hexafluoroispropanol (HFIP) and H 2 O 2 enables a straightforward synthesis of N,N -disubstituted formamides from imines in very good yields via an oxidation-rearrangement sequence under smooth reaction conditions. (organic-chemistry.org)
  • Comparison of urea-type reaction products of methylene diphenyl diisocyanate (MDI) and the bis-thiocarbamate methylene diphenyl diisocyanate cysteine methyl ester (MDI-CME). (cdc.gov)
  • Among the four samples, Cu with a ds close to 6 Å achieves a remarkably high urea yield rate of 7541.9 μg h−1 mgcat−1 and a partial current density of 115.25 mA cm−2, substantially greater than those of the bare Cu (urea yield rate of only 444.7 μg h−1 mgcat−1 and urea partial current density of 1.96 mA cm−2) counterpart. (unist.ac.kr)
  • The first catalyst, characterized by N-isopropyl substitution, was obtained by using a two-step sequence consisting of reductive amination followed by urea coupling from commercially available starting materials (14 g, 48% yield and 5-d total synthesis time). (ox.ac.uk)
  • in the second step the carbamate is reacted with a variety of diamines in toluen to yield bis-ureas. (upt.ro)
  • Urea, a vital element, is found in all things ranging from skincare commodities to fertilizers. (green-reporter.com)
  • Engineers and scientists, for decades, were on the lookout to make urea production more energy-efficient as there is a huge demand for fertilizers with the growing population. (green-reporter.com)
  • Since urea can be combined with other solid fertilizers, this fertilizer has become the most widely used fertilizer in the world [ 13 - 15 ]. (hindawi.com)
  • Often, urea is used in multicomponent formulations of solid fertilizers. (hindawi.com)
  • Urea , by inducing renal water excretion and promoting sodium (Na) retention, has been well described as a treatment for chronic SIADH. (karger.com)
  • The fractional excretion of urea (FEUr) has been shown to be affected by volume status. (karger.com)
  • Arginine is a conditionally essential basic amino acid involved primarily in urea metabolism and excretion, as well as in DNA synthesis and protein production. (muscleandstrength.com)
  • Firstly, two formulations of urea fertilizer coated with starch-based polymer nanocomposite reinforced with biochar nanoparticles (A) and pristine polymer without nanoparticles (B) were synthesized. (ac.ir)
  • Certain formulations contain urea, which is a chaotropic agent that facilitates the action of papain by solubilizing proteins. (bvsalud.org)
  • Synthesis of highly intercalated urea-clay nanocomposite via domestic montmorillonite as eco-friendly slow-release. (ac.ir)
  • These reactants could be responsible not only for the formation of urea but also of isocyanic acid, which is an organic molecule also observed in the interstellar medium. (aanda.org)
  • Also, La0.7Sr0.27Ca0.03MnO3 (LSCMO) nanoparticles have been synthesized through solution combustion using urea as fuel. (embs.org)
  • The present research work shows the fabrication of potentiometric urea Biosensor based on magnetic nanoparticles iron oxide (Fe3O4) and cobalt oxide (Co3O4) through simple, economical and reproducible approach. (gov.pk)
  • Co-precipitation method has been adopted for synthesis of nanoparticles of Fe3O4 and Co3O4. (gov.pk)
  • Furthermore, in one set of experiment, the potentiometric urea biosensor was fabricated by drop casting the initially prepared isopropanol and chitosan solution, containing Fe3O4 nanoparticles, on the glass fiber filter (2cm diameter). (gov.pk)
  • The functionalization of surface of the Fe3O4 nanoparticles is obtained by the electrostatically immobilization of urease onto the nanobiocomposite of the Fe3O4-chitosan (CH). Urea biosensor with enhanced sensitivity, specificity, stability and reusability was fabricated. (gov.pk)
  • Urea biosensor based on Fe3O4 nanoparticles depicts good sensitivity with 42 mV per decade at room temperature. (gov.pk)
  • In other set of experiment, a potentiometric urea biosensor has been fabricated through the immobilization of urease enzyme onto Co3O4-CH hybrid nanobiocomposite on glass filter paper and a copper wire (500μm diameter) has been attached with nanoparticles to extract the voltage output signal. (gov.pk)
  • Besides magnetic nanoparticles, non magnetic nanoparticles silver (Ag) was also exploited for the fabrication of urea biosensor. (gov.pk)
  • The results showed that the presence of nanoparticles increases the release time of urea from the coating layer, and it was prolonged with increasing the amount of NCNPs because of favorable interfacial polymer-filler interactions. (ac.ir)
  • Indicated as adjunctive treatment of acute hyperammonemia associated with encephalopathy caused by urea cycle enzyme deficiencies. (medscape.com)
  • Urea cycle disorders are characterized by hyperammonemia under catabolic or protein-loading conditions. (msdmanuals.com)
  • Interestingly, urea was first chemically produced by Farben in 1920 [ 19 ]. (hindawi.com)
  • A modified procedure for the direct synthesis of hypervalent [bis(trifluoroacetoxy)iodo]arenes avoids the use of hazardous reagents with the workup being only an aqueous extraction. (organic-chemistry.org)
  • The thermal analysis (TGA) indicate that the organic residues from the urea-nitrates gel mixture are eliminated above 600 °C and the post-synthesis heat treatment yields the formation of the desired phase without impurities. (embs.org)
  • Urea, also called carbamide (because it is a diamide of carbonic acid), is an organic compound with chemical formula CO(NH2)2. (wikipedia.org)
  • Historically, the use of SmI 2 in organic synthesis has been focused on the construction of carbocycles and oxygen-containing motifs. (mdpi.com)
  • The simple synthesis of aminoribosyl uridines substituted by a 5′-methylene-urea is described. (bradnerlab.org)
  • This paper describes a simple synthesis of an aqueous-based ferrofluid that may be used in an introductory science or engineering laboratory. (acs.org)
  • A new mannich base 1-((4-chlorophenyl)(2,5-dioxopyrrolidin-1-yl)methyl) urea has been synthesized from the condensation of succinimide, 4-chlorobenzaldehyde and urea. (academicjournals.org)
  • Methyltrioxorhenium (MTO) catalyzes an oxidation of methyl trimethylsilyl ketene acetals with urea hydrogen peroxide to afford α-hydroxy and α-siloxy esters. (organic-chemistry.org)
  • And finally, we will look at the ATP synthase enzyme, which uses this gradient to catalyze ATP synthesis. (hstalks.com)
  • Structural analogue of N -acetylglutamate, which enters cells and enables activation of CPS I (first enzyme of urea cycle) in vivo. (medscape.com)
  • Synthesis of citrulline by isolated mitochondria from ornithine proceeds at a near optimal rate at ornithine concentrations as low as 0.08 mM. (nebraska.edu)
  • The same stoichiometry and rates of citrulline synthesis are observed when ornithine is replaced by arginine. (nebraska.edu)
  • Ornithine transcarbamylase (OTC) deficiency is the most common urea cycle disorder. (medscape.com)
  • Primary urea cycle disorders (UCDs) include carbamoyl phosphate synthase (CPS) deficiency, ornithine transcarbamylase (OTC) deficiency, argininosuccinate synthetase deficiency (citrullinemia), argininosuccinate lyase deficiency (argininosuccinic aciduria), arginase deficiency (argininemia), and N -acetylglutamate synthetase (NAGS) deficiency. (msdmanuals.com)
  • Treatment of urea cycle disorders is dietary protein restriction that still provides adequate amino acids for growth, development, and normal protein turnover. (msdmanuals.com)
  • Hereditary urea cycle abnormality is an inherited condition. (medlineplus.gov)
  • People with urea cycle abnormalities must also be very careful under times of physical stress, such as when they have infections. (medlineplus.gov)
  • These extra proteins can make it hard for the abnormal urea cycle to remove the byproducts. (medlineplus.gov)
  • Most people with urea cycle disorders will need to stay in the hospital at some point. (medlineplus.gov)
  • The medical management of urea cycle disorders used to be limited to dietary modifications, which were not sufficient in many patients. (medscape.com)
  • In February 2013, the US Food and Drug Administration (FDA) approved glycerol phenylbutyrate (Ravicti) for the long-term management of some urea cycle disorders in patients aged 2 years and older. (medscape.com)
  • The urea-crosslinked starch (UcS) film has a major drawback of very rapid biodegradability when applied as slow release fertilizer in soil. (degruyter.com)
  • Starch is the most widely utitlized biodegradable biopolymer for the coating of fertilizer, e.g. starch- g -poly (vinyl acetate) (6), starch-urea matrix (7). (degruyter.com)
  • Currently, synthetic urea is mainly synthesized using the Haber-Bosch method, one of the most valued inventions of the 20th century as it facilitated bulk production of fertilizer and contributed to an increase in food supply globally. (green-reporter.com)
  • Then, the effects of two levels (180 and 420 kg/ha or 60 and 140 mg/kg) synthesized SRF samples (A and B) and un-coated urea granule fertilizer (as a control) on morphological characteristics of tomatoes were investigated. (ac.ir)
  • Urea fertilizer can be stored easily and does not pose a fire hazard over time. (hindawi.com)
  • Due to its acidifying properties, urea fertilizer is an ideal fertilizer for many plants. (hindawi.com)
  • Globally, about 200 million tons of urea fertilizer are produced each year [ 11 , 12 ]. (hindawi.com)
  • Since urea is highly soluble in water, it is also very suitable for use in fertilizer solutions [ 17 ]. (hindawi.com)
  • Urea fertilizer has been produced since the early 1950s. (hindawi.com)
  • Tariq, M & Moran, WJ 2020, ' Design and synthesis of chiral urea-derived iodoarenes and their assessment in the enantioselective dearomatizing cyclization of a naphthyl amide ', Tetrahedron , vol. 76, no. 45, 131634. (hud.ac.uk)
  • In solid urea, the oxygen center is engaged in two N-H-O hydrogen bonds. (wikipedia.org)
  • Multigram synthesis of N-alkyl bis-ureas for asymmetric hydrogen bonding phase-transfer catalysis. (ox.ac.uk)
  • Urea-hydrogen peroxide is a non-toxic, odorless crystalline solid. (organic-chemistry.org)
  • Urea-hydrogen peroxide in the presence of a catalytic amount of magnesium bromide efficiently oxidizes primary and secondary benzylic alcohols into the corresponding aromatic aldehydes and ketones. (organic-chemistry.org)
  • Eco-friendly laboratory procedures allow the oxidative iodination of various activated and deactivated arenes with molecular iodine, in the presence of UHP (percarbamide), a stable, strongly H-bonded, solid urea-hydrogen peroxide adduct as the oxidant. (organic-chemistry.org)
  • Urea-hydrogen peroxide adduct (UHP) is stable, inexpensive and an easily handled reagent. (organic-chemistry.org)
  • The use of urea-hydrogen peroxide and phthalic anhydride in ethyl acetate enables a metal-free, environmentally benign oxidation of substituted sulfides to their corresponding sulfones without observation of the possible sulfoxide oxidation product. (organic-chemistry.org)
  • The use of urea-hydrogen peroxide as terminal oxidant in the presence of diphenyl diselenide as catalyst enables a highly selective catalytic oxidation of sulfides into the corresponding sulfoxides. (organic-chemistry.org)
  • Thus, motivated also by the recent tentative observation of urea, we have considered the synthetic pathways responsible to its formation. (aanda.org)
  • Sulfonylurea herbicides are a group of non-selective herbicides that act by disrupting plant protein synthesis. (cdc.gov)
  • In 4 of tive P44 proteins (online Technical patients in Japan reacted with antigens the patients, antibodies to A. phago- Appendix Figure 3) were produced of A. phagocytophilum cultured in cytophilum were detected in serum as recombinant proteins in vitro by THP-1 cells rather than in HL60 cells by using A. phagocytophilum cultured insect cell-free protein synthesis in IFA ( 2 ). (cdc.gov)
  • Diisocyanate antigen-stimulated monocyte chemoattractant protein-1 synthesis has greater test efficiency than specific antibodies for identification of diisocyanate asthma. (cdc.gov)
  • They are also involved in other metabolic processes such as urea generation, haem synthesis and fatty acid beta-oxidation. (nih.gov)
  • Synthesis, SAR, and biological evaluation of bicyclo[3.1.0]hexyl ureas. (bvsalud.org)
  • Méthodologie expérimentale : plans statistiques d'expérience, en particulier dans le domaine des biomatériaux (planification d'expériences in vitro et in vivo). (epfl.ch)
  • Ethylenethio urea (ETU) represents the main degradation product of the ethylene bisdithiocarbamates and propylenethio urea (PTU) is the main degradation product of the propylene bisdithiocarbamates. (cdc.gov)
  • It produced more yields of urea when compared to the earlier attempts with electrocatalysis. (green-reporter.com)
  • The researchers wish to equip large-scale industrial processes with an alternative solution to decrease energy use, which is crucial for a sustainable future because the population and demand for urea will rise in the coming years. (green-reporter.com)
  • The carbon in urea is described as sp2 hybridized, the C-N bonds have significant double bond character, and the carbonyl oxygen is basic compared to, say, formaldehyde. (wikipedia.org)
  • Urea production using electrocatalysis is a more sustainable, alternative process that saves energy. (green-reporter.com)
  • Electrocatalytic devices can be run by individuals and sold to individual farms so that they can produce urea by themselves. (green-reporter.com)
  • The potentiometric sensitivity curve measured over the large concentration range 0.1 - 80 mM of urea electrolyte and it revealed that the fabricated biosensor holds good linear sensing ability with a slope curve of the 45mV / decade. (gov.pk)
  • Herein, we report a protocol for the multigram synthesis of two representative enantiopure N-alkyl bis-urea organocatalysts derived from (S)-(-)-1,1'-binaphthyl-2,2'-diamine ((S)-BINAM). (ox.ac.uk)
  • Their convergent synthesis entails the urea formation from numerous activated amides and an azidoribosyl uridine substituted on the 5′ place by an aminomethyl group. (bradnerlab.org)
  • Urea synthesis was a critical discovery for biochemists because it showed that a compound known to be produced in nature only by biological organisms could be produced in a laboratory under controlled conditions from inanimate matter. (lumenlearning.com)