Chemical modification of alginate via the oxidation-reductive amination reaction for the development of alginate derivative electrospun composite nanofibers

Author(s):  
Xiuqiong Chen ◽  
Qingmei Zhu ◽  
Yanshi Wen ◽  
Zhengyue Li ◽  
Shanshan Cao ◽  
...  
RSC Advances ◽  
2018 ◽  
Vol 8 (64) ◽  
pp. 36662-36674 ◽  
Author(s):  
Esra Boz ◽  
Nurcan Ş. Tüzün ◽  
Matthias Stein

Green production of tertiary amine from sustainable sources can be controlled by appropriate choice of reaction parameters identified by computational means.


ChemInform ◽  
2003 ◽  
Vol 34 (26) ◽  
Author(s):  
Richard A. Bunce ◽  
Derrick M. Herron ◽  
Jason R. Lewis ◽  
Sharadsrikar V. Kotturi

2009 ◽  
Vol 7 (1) ◽  
pp. 66-73 ◽  
Author(s):  
Ioana Sisu ◽  
Valentina Udrescu ◽  
Corina Flangea ◽  
Sorin Tudor ◽  
Nicolae Dinca ◽  
...  

AbstractA variety of carbohydrates, in particular polysaccharides can be subjected to chemical modification to obtain derivatives with amphiphilic properties, which enable biochemical or biological reactions at the polymer surface. In the present work, a polydisperse maltodextrin mixture of average molecular weight 3000 was coupled with 1,6-hexamethylenediamine (HMD) via reductive amination reaction. Resulting products were characterized by thermal analysis and positive nanoelectrospray quadrupole time-of-flight (Q-TOF) mass spectrometry (MS) and tandem mass spectrometry (MS/MS). Both thermal analysis and MS screening confirmed the formation of the HMD-polysaccharide coupling products. Moreover, HMD-linked polysaccharide chains containing 2 to 26 glucose building blocks were identified by nanoESI Q-TOF MS. MS/MS fragmentation using collision-induced dissociation (CID) at low ion acceleration energies provided strong evidence for HMD-maltodextrin linkage formation and the set of sequence ions diagnostic for the composition and structure of a HMD-linked chain containing 18 glucose residues.


2005 ◽  
Vol 7 (11) ◽  
pp. 2237-2240 ◽  
Author(s):  
Christoph J. Kressierer ◽  
Thomas J. J. Müller

RSC Advances ◽  
2015 ◽  
Vol 5 (3) ◽  
pp. 2292-2298 ◽  
Author(s):  
Carole Guyon ◽  
Eric Da Silva ◽  
Romain Lafon ◽  
Estelle Métay ◽  
Marc Lemaire

Amines were prepared by a reductive amination reaction in the presence of calcium hydride and Pt/C.


Molecules ◽  
2021 ◽  
Vol 26 (16) ◽  
pp. 5032
Author(s):  
Omar Hassan Hassan Omar ◽  
Rosa Giannelli ◽  
Erica Colaprico ◽  
Laura Capodieci ◽  
Francesco Babudri ◽  
...  

Cellulose nanocrystals (CNCs) represent intriguing biopolymeric nanocrystalline materials, that are biocompatible, sustainable and renewable, can be chemically functionalized and are endowed with exceptional mechanical properties. Recently, studies have been performed to prepare CNCs with extraordinary photophysical properties, also by means of their functionalization with organic light-emitting fluorophores. In this paper, we used the reductive amination reaction to chemically bind 4-(1-pyrenyl)butanamine selectively to the reducing termini of sulfated or neutral CNCs (S_CNC and N_CNC) obtained from sulfuric acid or hydrochloric acid hydrolysis. The functionalization reaction is simple and straightforward, and it induces the appearance of the typical pyrene emission profile in the functionalized materials. After a characterization of the new materials performed by ATR-FTIR and fluorescence spectroscopies, we demonstrate luminescence quenching of the decorated N_CNC by copper (II) sulfate, hypothesizing for these new functionalized materials an application in water purification technologies.


2018 ◽  
Vol 15 (6) ◽  
pp. 755-761 ◽  
Author(s):  
Zhipeng A. Wang ◽  
Yan-Yu Liang ◽  
Ji-Shen Zheng

The chemical modifications of proteins or protein complexes have been a challenging but fruitful task in the post-genomic era. Bioorthogonal reactions play an important role for the purpose of selective functionalization, localization, and labeling of proteins with natural or non-natural structures. Among these reactions, reductive amination stands out as one of the typical bioorthogonal reactions with high efficiency, good biocompatibility, and versatile applications. However, not many specific reviews exist to discuss the mechanism, kinetics, and their applications in a detailed manner. In this manuscript, we aim to summarize some current developments and mechanistic studies of reductive amination reaction and its applications. We hope reductive amination reaction can contribute to a wider scope of protein chemistry research en route in the chemical biology frontier as one of the well-known bioorthogonal reactions.


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