نتایج جستجو برای: amino functionalization

تعداد نتایج: 216394  

2011
M. Quintana A. Montellano X. Ke G. Van Tendeloo C. Bittencourt M. Prato

The production of graphene by micromechanical cleavage 1 has triggered an enormous experimental activity. Since then, many studies have demonstrated that graphene monolayers possess novel structural, 2 electrical 3 and mechanical 4 properties. However many important issues need to be addressed before this material can be used in an ideal way. Much workhas been produced that proposes chemical fu...

2012
Maurizio Prato

The production of graphene by micromechanical cleavage has triggered an enormous experimental activity. Since then, many studies have demonstrated that graphene monolayers possess novel structural, electrical and mechanical properties. However many important issues need to be addressed before this material can be used. Much work has been produced on the chemical functionalization as a tool for ...

Journal: :Molecular biology and evolution 2007
Valentin Ruano-Rubio Mario A Fares

The evolutionary transition from homo-oligomerism to hetero-oligomerism in multimeric proteins and its contribution to function innovation and organism complexity remain to be investigated. Here, we undertake the challenge of contributing to this theoretical ground by investigating the hetero-oligomerism in the molecular chaperonin cytosolic chaperonin containing tailless complex polypeptide 1 ...

Journal: :Angewandte Chemie 2022

Abstract Cyanopyridylalanines are non‐canonical amino acids that react with aminothiol compounds under physiological conditions in a biocompatible manner without requiring added catalyst. Here we present newly developed aminoacyl‐tRNA synthetases for genetic encoding of meta ‐ and para ‐cyanopyridylalanine to enable the site‐specific attachment wide range different functionalities. The outstand...

Journal: :Journal of composites science 2023

The reinforcing efficiency of SBA-15-type mesoporous silica, when used as additive in epoxy polymers, was evaluated this study. effects silica loading and its physicochemical characteristics on the thermal, mechanical, viscoelastic properties glassy rubbery mesocomposites were examined using SBA-15 silicas with varying porosities (surface area, pore size, volume), particle sizes, morphologies, ...

Journal: :Chemistry-an Asian Journal 2021

2-N-aminoquinazolines were prepared by consecutive SNAr functionalization. X-ray structures display the nitrogen lone pair of 2-N-morpholino group in conjugation with electron deficient quinazoline core and thus representing electronic push-pull systems. show a positive solvatochromism are fluorescent solution solid state quantum yields up to 0.73. Increase donor strength 2-amino substituent ca...

Journal: :Angewandte Chemie 2021

We report the functionalization of cysteine residues with lipophilic alkynes bearing a silyl group or an alkyl chain using amphiphilic ethynylbenziodoxolone reagents (EBXs). The reactions were carried out in buffer (pH 6 to 9), without organic co-solvent removal oxygen, either at 37 °C room temperature. transformation led significant increase peptide lipophilicity and worked for aromatic thiols...

Journal: :biomacromolecular journal 0
sharareh sajjadi roudehen branch, islamic azad university, roudehen, iran hedayatollah ghourchian university of tehran, ibb parvaneh rahimi university of tehran

choline oxidase (chox) was chosen as a model enzyme for evaluating the performance of cnts’ functional groups for development of enzyme electrodes. cnts were functionalized with carboxylic acid, amine or amide groups. carboxylic acid, amine and amide functionalized cnts were obtained by acid treatment, ethylenediamine or tetraethylenepentamine chemically modification and ammonia plasma treatmen...

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