Results 121 to 130 of about 34,563 (277)
, 2018 Throughout the world, the fossil fuel has supplied around the 80% of the energetic requirements, in Colombia alone 95.1% of energetic demand is made by the transportation sector solely, supplied by oil, kerosene, gasoline and diesel, this sector has an ...
Urbina-Suarez, Nestor Andres +5 more
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Transesterification Reactions Catalyzed by Subtilisins
Journal of Biological Chemistry, 1966 Abstract The hydrolysis of l-tyrosine ethyl ester by Carlsberg subtilisin, subtilisin BPN', and Novo bacterial proteinase has been examined in mixtures of water with various alcohols. The presence of straight chain alcohols resulted in an apparent inhibition of acid release.
openaire +2 more sources
Machine Learning Assisted Prediction of Degradation Behavior of Poly(Lactic‐Co‐Glycolic Acid)
Materials Genome Engineering Advances, EarlyView.Using a gradient boosting‐based machine learning model trained on 484 data points, this study predicts the degradation behavior of poly(lactic‐co‐glycolic acid) (PLGA) implants. Degradation time, molecular weight, and lactide/glycolide ratio were identified as key governing factors, enabling accurate prediction while reducing reliance on extensive ...
Shuai Wang +11 more
wiley +1 more source
Transesterification Reactions Catalyzed by Papain
Journal of Biological Chemistry, 1966 Abstract The hydrolysis of a series of esters of benzoyl-L-arginine and glycylglycine by papain has been examined in mixtures of water with various alcohols in the pH range of 5 to 6. The presence of straight chain alcohols resulted in an apparent inhibition of acid release.
openaire +2 more sources
Polymer Engineering &Science, EarlyView.Schematic representation of the fabrication and application concept of biodegradable dual‐material 4D‐printed PLA/PEG scaffolds for mandibular bone regeneration. ABSTRACT In this study, biodegradable dual‐material 4D‐printed scaffolds with tunable poly(lactic acid)/poly(ethylene glycol) (PLA/PEG) ratios were designed, fabricated, and systematically ...
Meltem Eryildiz
wiley +1 more source
Imobilização de lipase de Candida antarctica B em quitosana para obtenção de biodiesel por transesterificação do óleo de mamona [PDF]
, 2007 Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia QuímicaEste trabalho teve como objetivo principal estudar a imobilização de lipase comercial (Lipozyme CALB L) em esferas de ...
Cruz Júnior, Américo
core
Transesterification of phospholipids in different reaction conditions
, 1994 Transesterification of synthetic dimyristoyl phosphatidylcholine with oleic acid by commercial lipase preparations from Aspergillus niger and Rhizomucor miehei was studied in the presence and absence of solvent.
Kaisa Poutanen +5 more
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Robust β‐myrcene block copolymer elastomeric vitrimers
Polymer International, EarlyView.Myrcene‐based vitrimeric elastomers were compared: statistical (poly(styrene‐stat‐myrcene‐stat‐AAEMA)] versus ‘hard–soft’ diblock (poly(styrene)‐block‐poly(myrcene‐co‐AAEMA)). The diblock's ability to anchor the glassy poly(styrene) blocks in a self‐assembled microstructure was effective – leading to four times higher tensile stress and ten times ...
Chong Yang Du +2 more
wiley +1 more source
Synthesis Of Biodiesel From Waste Cooking Oil By Two Steps Process Transesterification And Ozonation
, 2015 The synthesis of biodiesel has been widely studied. There are many raw materials used for the synthesis either from edible or non-edible oil. In this study, we investigated the synthesis of biodiesel using two steps process.
Purwanto, Edy +4 more
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Unsaturated biobased polyesters from bicyclic α‐pinene‐based diols
Polymer International, EarlyView.We present the synthesis of four biosourced unsaturated polyesters made from chiral terpene‐based diols and esters of renewable diacids. The resulting materials harbor a bicyclic pinene ring in their backbones which leads to enhanced thermal properties while still conferring susceptibility to enzyme hydrolysis for chains having a cis alkene.
Ganapathy Ranjani +4 more
wiley +1 more source