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Relevant bibliographies by topics / Hydroxy urea

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Academic literature on the topic 'Hydroxy urea'

Author: Grafiati

Published: 7 June 2025

Last updated: 2 August 2025

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Journal articles on the topic "Hydroxy urea"

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Lin, Rui Hang, Xiao Bo Wang, Xiao Feng Zhu, and Zhen Zhong Gao. "Study on Modification of UFRA by Enzyme Hydrolysis Prepared Oxidized Starch." Applied Mechanics and Materials 268-270 (December 2012): 574–79. http://dx.doi.org/10.4028/www.scientific.net/amm.268-270.574.

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In this work, we concentrate on the preparation of oxidized starch modification reagent by enzymatic hydrolysis pretreatment, preparation of the urea-formaldehyde resin with low toxicity. The performance of modified urea-formaldehyde resin depend on the oxidation degree of oxidized starch and whether using enzymatic hydrolysis pretreatment or not. 100-PH9-HOS(the starch enzymatic hydrolysis then oxidized in 100°C with pH 9) synthetized modified urea-formaldehyde resin (100-PH9-HOS-UF) only with a free formaldehyde content of 0.14%, the lowest formaldehyde emission of 0.6078mg/L. Infrared spect

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Agil, A., and S. M. H. Sadrzadeh. "Hydroxy-urea protects erythrocytes against oxidative damage." Redox Report 5, no. 1 (2000): 29–34. http://dx.doi.org/10.1179/rer.2000.5.1.29.

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Jurczak, Janusz, Maciej Majdecki, Patryk Niedbała, and Agata Tyszka-Gumkowska. "Assisted by Hydrogen-Bond Donors: Cinchona Quaternary Salts as Privileged Chiral Catalysts for Phase-Transfer Reactions." Synthesis 53, no. 16 (2021): 2777–86. http://dx.doi.org/10.1055/a-1472-7999.

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AbstractThis short review is devoted to asymmetric phase-transfer reactions that employ hybrid ammonium Cinchona catalysts supported by possessing hydrogen-bond donor groups. We present recent advances utilizing this type of catalyst in the field of biphasic reaction systems. The main emphasis is placed on the advantages of additional functional groups present in the structure of the catalyst, such as hydroxy, amide, (thio)urea or squaramide.1 Introduction2 Phase-Transfer Hybrid Cinchona Catalysts with a Free Hydroxy Group3 (Thio)urea Hybrid Cinchona Catalysts4 Hybrid Amide-Based Catalysts Bea

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Kaurav, Manvendra S., Pramod K. Sahu, Praveen K. Sahu, et al. "An efficient, mild and metal freel-proline catalyzed construction of fused pyrimidines under microwave conditions in water." RSC Advances 9, no. 7 (2019): 3755–63. http://dx.doi.org/10.1039/c8ra07517d.

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Djunaidi, Muhammad Cholid, Denandha Putri Ayuningrum, Nesti Dwi Maharani, et al. "Synthesis of Printed Hollow Fiber Membranes Urea as a Membrane Candidate Hemodialysis." Indonesian Journal of Chemistry 24, no. 6 (2024): 1583. https://doi.org/10.22146/ijc.83068.

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Chronic kidney failure is a disease that affects the world's population and an alternative solution is hemodialysis. Hemodialysis is the process of cleaning the blood from urea and creatinine through a semi-permeable membrane in the form of a hollow fiber membrane (HFM) with the following advantages: flexible and low energy requirements. The weaknesses of commercial hemodialysis membranes are that they are hydrophobic, chemical resistant, and low biocompatibility. This research uses a membrane of polysulfone combined with eugenol and polyethylene glycol (PEG) or polyethylene glycol diglycidyl

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Kanevskaya, I. V., N. V. Pchelintseva та O. V. Fedotova. "Functionalization of 4-hydroxy-6-methyl-2Н-pyran-2-one under the conditions of the modified Biginelli reaction". Журнал органической химии 59, № 4 (2023): 466–74. http://dx.doi.org/10.31857/s0514749223040055.

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The features of the interaction of 4-hydroxy-6-methyl-2 H -pyran-2-one with aromatic aldehydes and urea in the one-pot mode of the classical mode, as well as using thermal and microwave activation of The Biginelli reaction variants, were studied. Depending on the conditions of single-reactory processes, previously unknown 3-[amino(aryl)methyl]-4-hydroxy-6-methyl-2 H -pyran-2-one, arylmethylenebis-4-hydroxy-6-methyl-2 H -pyran2-one, hybrid system - 2-hydroxy-7-methyl-4-(3-nitrophenyl)-4,4a-dihydro-5 H -pyrano[4,3- d ]pyrimidine-5-one in the case of transformation with aryl aldehyde containing a

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Choi, Hyeong, Yong Suk Shim, Sung Chun Lee, Sung Kwon Kang, and Chang Keun Sung. "1-(2-Hydroxy-2-phenylethyl)-3-(4-methoxyphenyl)urea." Acta Crystallographica Section E Structure Reports Online 67, no. 10 (2011): o2632. http://dx.doi.org/10.1107/s1600536811036464.

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Pande, S. K., S. P. Vyas, and V. K. Dixit. "Hydroxy-urea bearing albumin microspheres—preparation, characterization and evaluation." Journal of Microencapsulation 8, no. 1 (1991): 9–19. http://dx.doi.org/10.3109/02652049109021853.

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Tan, Ming Yueh, Karen A. Crouse, Thahira B. S. A. Ravoof, Mukesh M. Jotani, and Edward R. T. Tiekink. "3-{(E)-[4-(4-Hydroxy-3-methoxyphenyl)butan-2-ylidene]amino}-1-phenylurea: crystal structure and Hirshfeld surface analysis." Acta Crystallographica Section E Crystallographic Communications 74, no. 1 (2018): 21–27. http://dx.doi.org/10.1107/s2056989017017273.

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Two independent molecules (AandB) comprise the asymmetric unit of the title compound, C18H21N3O3. The urea moiety is disubstituted with one amine being linked to a phenyl ring, which is twisted out of the plane of the CN2O urea core [dihedral angles = 25.57 (11) (A) and 29.13 (10)° (B)]. The second amine is connected to an imine (Econformation), which is linked in turn to an ethane bridge that links a disubstituted benzene ring. Intramolecular amine-N—H...N(imine) and hydroxyl-O—H...O(methoxy) hydrogen bonds closeS(5) loops in each case. The molecules have twisted conformations with the dihedr

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Pavić, Kristina, Zrinka Rajić, Zvonimir Mlinarić, Lidija Uzelac, Marijeta Kralj, and Branka Zorc. "Chloroquine Urea Derivatives: Synthesis and Antitumor Activity in Vitro." Acta Pharmaceutica 68, no. 4 (2018): 471–83. http://dx.doi.org/10.2478/acph-2018-0039.

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Abstract In the current paper, we describe the design, synthesis and antiproliferative screening of novel chloroquine derivatives with a quinoline core linked to a hydroxy or halogen amine through a flexible aminobutyl chain and urea spacer. Synthetic pathway leading to chloroquine urea derivatives 4-10 includes two crucial steps: i) synthesis of chloroquine benzotriazolide 3 and ii) formation of urea derivatives through the reaction of compound 3 with the corresponding amine. Testing of antiproliferative activity against four human cancer cell lines revealed that chloroquine urea derivatives

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Dissertations / Theses on the topic "Hydroxy urea"

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Xia, Shijing. "Experimental and Computational Studies for Various Organic Systems." The Ohio State University, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=osu1204309077.

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Tsai, Tian-chun, and 蔡田畯. "Preparation, Characterization and Electrochemical Evaluation of Urinary Small Molecules (creatinine, urea and 8-hydroxy deoxyguanosine)-imprinted Poly(ethylene-co-vinyl alcohol)." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/f7m42g.

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碩士<br>國立高雄大學<br>生物科技研究所<br>96<br>A nephron is the basic structural and functional unit of the kidney, and which contains glomerulus and renal tubules. The urinary levels of creatinine and urea are the important markers for glomerular filtration rate (GFR), and lysozyme and 8-hydroxydeoxyguanosine (8-OHdG) are not only related with inflammation and cellular oxidative stress, but it also can be used to assess the tubular reabsorption efficiency. These biomarkers can be employed as indicators of the filtration and reabsorption functions of a nephron. The advantage of urinalysis is rapid, non-inva

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Cherdchim, Banyat. "Actions of lignocellulolytic enzymes on Abies grandis(grand fir) wood for application in biofuel production." Doctoral thesis, 2010. http://hdl.handle.net/11858/00-1735-0000-0006-B138-4.

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Book chapters on the topic "Hydroxy urea"

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Pardasani, R. T., and P. Pardasani. "Magnetic properties of binuclear nickel(II) trichloroacetato complex with N,N,N′N′-tetrakis[(1-ethyl-2-benzimidazolyl)-methyl]2-hydroxy-1,3-diaminopropane and urea." In Magnetic Properties of Paramagnetic Compounds, Magnetic Susceptibility Data, Volume 3. Springer Berlin Heidelberg, 2021. http://dx.doi.org/10.1007/978-3-662-62470-8_267.

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Pardasani, R. T., and P. Pardasani. "Magnetic properties of binuclear nickel(II) propionato complex with N,N,N′N′-tetrakis-[(1-ethyl-2-benzimidazolyl)-methyl]2-hydroxy-1,3-diaminopropane and urea." In Magnetic Properties of Paramagnetic Compounds, Magnetic Susceptibility Data, Volume 3. Springer Berlin Heidelberg, 2021. http://dx.doi.org/10.1007/978-3-662-62470-8_265.

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Pardasani, R. T., and P. Pardasani. "Magnetic properties of binuclear nickel(II) chloroacetato complex with N,N,N′N′-tetrakis[(1-ethyl-2-benzimidazolyl)-methyl]2-hydroxy-1,3-diaminopropane and urea." In Magnetic Properties of Paramagnetic Compounds, Magnetic Susceptibility Data, Volume 3. Springer Berlin Heidelberg, 2021. http://dx.doi.org/10.1007/978-3-662-62470-8_266.

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Pardasani, R. T., and P. Pardasani. "Magnetic properties of binuclear nickel(II) acetato complex with N,N,N′N′-tetrakis[(1-ethyl-2-benzimidazolyl)-methyl]2-hydroxy-1,3-diaminopropane and urea." In Magnetic Properties of Paramagnetic Compounds, Magnetic Susceptibility Data, Volume 3. Springer Berlin Heidelberg, 2021. http://dx.doi.org/10.1007/978-3-662-62470-8_264.

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Pardasani, R. T., and P. Pardasani. "Magnetic properties of binuclear nickel(II) trifluoroacetato complex with N,N,N′N′-tetrakis[(1-ethyl-2-benzimidazolyl)-methyl]2-hydroxy-1,3-diaminopropane and urea." In Magnetic Properties of Paramagnetic Compounds, Magnetic Susceptibility Data, Volume 3. Springer Berlin Heidelberg, 2021. http://dx.doi.org/10.1007/978-3-662-62470-8_268.

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Aoyagi, Kazumasa. "Inhibition of arginine synthesis by urea: A mechanism for arginine deficiency in renal failure which leads to increased hydroxyl radical generation." In Guanidino Compounds in Biology and Medicine. Springer US, 2003. http://dx.doi.org/10.1007/978-1-4615-0247-0_2.

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Toda, Fumio. "Inclusion by acetylenic alcohols and some other novel host compounds." In Inclusion Compounds. Oxford University PressOxford, 1991. http://dx.doi.org/10.1093/oso/9780198552925.003.0004.

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Abstract Host compounds can be assigned to either the monomolecular class, members of which are cyclodextrins and crown ethers, or to another class, polymolecular, exemplified by urea and deoxycholic acid, for which the host molecule possesses no central void. Hosts of the latter type can be further classified as those which form crystalline host lattices which include guest compounds in a stoichiometric ratio, as opposed to those for which non-stoichiometric host-guest ratios are found. Our work has centred around stoichiometric guest inclusion within crystalline polymolecular host systems. G

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Inokuma, T., and Y. Takemoto. "Bifunctional Hydroxy (Thio)ureas." In Brønsted Base and Acid Catalysts, and Additional Topics. Georg Thieme Verlag KG, 2012. http://dx.doi.org/10.1055/sos-sd-205-00348.

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"Modified urea-formaldehyde resins as dye adsorbents." In Book of Abstracts - RAD 2025 Conference. RAD Centre, Niš, Serbia, 2025. https://doi.org/10.21175/rad.abstr.book.2025.16.12.

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One of the biggest environmental challenges worldwide that needs to be addressed is improving water quality, as water resources are becoming increasingly scarce due to population growth, climate change, and increased demand for water in industrial and agricultural activities. In addition, people's careless attitude when disposing of organic and inorganic pollutants can lead to irreversible damage to the aquatic environment and, consequently, to people. Dyes, phenolic compounds, metal ions, and micropollutants, such as pesticides, pharmaceuticals, and, more recently, plastics, are found in wast

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Conference papers on the topic "Hydroxy urea"

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Song, Mingda, Weiqiang Wang, Huaixiang Cao, Lixin Wang, and Bo Zhang. "Multilayer Urea Reactor Safety Evaluation Based on Acoustic Emission Examination." In ASME 2012 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/pvp2012-78135.

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Safety evaluation of urea reactors containing defects was studied based on acoustic emission examination and subsequent dissection. First, acoustic emission examination was conducted in the process of pressure testing during the hydro test and the existed defects of the urea reactor were detected and comprehensively evaluated. Second, the dissection results of the multilayer urea reactor confirmed that the acoustic emission source locations were heavy weld radial expansion cracks. Third, crack stress intensity factors were calculated in accordance with the finite element analysis results and a

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Reports on the topic "Hydroxy urea"

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Adam, Alexandre, Saadane Rezaiguia, Romain Severac, and Michel Bouquey. Incorporation of aminoalcohols to tune the properties of polyurethane systems. Universidad de los Andes, 2024. https://doi.org/10.51573/andes.pps39.gs.ps.1.

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It is common practice to incorporate low molecular weight molecules, known as chain extenders, to enhance the performance of polyurethane (PU) material. They usually increase the phase separation between the soft and hard domains, which has a significant impact on the density of hydrogen bonds. Aminoalcohols, molecules with both hydroxyl and amine functional groups, are important building blocks in the synthesis of pharmaceuticals but are also widely used in cosmetics or paints and coatings. Easily derived from abundant natural sources, such as amino acids, aminoalcohols align with the need fo

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