Synthesis and characterization of hydrophobic long-chain fatty acylated cellulose and its self-assembled nanoparticles

2012 ◽  
Vol 69 (4) ◽  
pp. 389-403 ◽  
Author(s):  
Yanzhu Guo ◽  
Xiaohui Wang ◽  
Dong Li ◽  
Hong Du ◽  
Xiaoying Wang ◽  
...  
Polymers ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 1791
Author(s):  
Marco Vizcarra-Pacheco ◽  
María Ley-Flores ◽  
Ana Mizrahim Matrecitos-Burruel ◽  
Ricardo López-Esparza ◽  
Daniel Fernández-Quiroz ◽  
...  

One of the main challenges facing materials science today is the synthesis of new biodegradable and biocompatible materials capable of improving existing ones. This work focused on the synthesis of new biomaterials from the bioconjugation of oleic acid with L-cysteine using carbodiimide. The resulting reaction leads to amide bonds between the carboxylic acid of oleic acid and the primary amine of L-cysteine. The formation of the bioconjugate was corroborated by Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, and nuclear magnetic resonance (NMR). In these techniques, the development of new materials with marked differences with the precursors was confirmed. Furthermore, NMR has elucidated a surfactant structure, with a hydrophilic part and a hydrophobic section. Ultraviolet-visible spectroscopy (UV-Vis) was used to determine the critical micellar concentration (CMC) of the bioconjugate. Subsequently, light diffraction (DLS) was used to analyze the size of the resulting self-assembled structures. Finally, transmission electron microscopy (TEM) was obtained, where the shape and size of the self-assembled structures were appreciated.


2000 ◽  
Vol 77 (8) ◽  
pp. 865-871 ◽  
Author(s):  
Gerhard Knothe ◽  
Robert O. Dunn ◽  
Michael W. Shockley ◽  
Marvin O. Bagby

2005 ◽  
Vol 93 (7) ◽  
Author(s):  
D. M. Wellman ◽  
J. G. Catalano ◽  
J. P. Icenhower ◽  
A. P. Gamerdinger

AbstractLong-chain sodium polyphosphate compounds have been recently proposed as a ‘time-released’ source of phosphate for precipitation of uranium-phosphate minerals. Elevated sodium concentrations presented by this technique promote the formation of sodium autunite relative to the more common calcium autunite mineral phase. In order to evaluate sodium autunite minerals as a long-term ‘sink’ for


Langmuir ◽  
2003 ◽  
Vol 19 (10) ◽  
pp. 4272-4284 ◽  
Author(s):  
Bert de Boer ◽  
Hong Meng ◽  
Dmitrii F. Perepichka ◽  
Jie Zheng ◽  
Martin M. Frank ◽  
...  

2019 ◽  
Vol 16 ◽  
pp. 188-193 ◽  
Author(s):  
Jingyu Wang ◽  
Binbin Weng ◽  
Preston Larson ◽  
Yingtao Liu

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