Results 11 to 20 of about 772,167 (189)

Simple one pot preparation of chemical hydrogels from cellulose dissolved in cold LiOH/urea [PDF]

open access: yes, 2020
In this work, non-derivatized cellulose pulp was dissolved in a cold alkali solution (LiOH/urea) and chemically cross-linked with methylenebisacrylamide (MBA) to form a robust hydrogel with superior water absorption properties.
Lindman, Björn   +3 more
core   +1 more source

A Simplified Method of Synthesis to Obtain Zwitterionic Cellulose under Mild Conditions with Active Ionic Moieties

open access: yesMolecules, 2020
A simplified procedure to synthesize zwitterionic cellulose by means of N-protected aspartic anhydride under mild conditions was developed. The preparation of modified cellulose samples was carried out under heterogeneous, aqueous conditions by reacting ...
Nadia B. Haro-Mares   +5 more
doaj   +1 more source

Upcycling polyethylene terephthalate wastes for enhancing the performance of polyester from rice straw polyol in HDPE-composites

open access: yesScientific Reports, 2023
Upscaling the utilization of polymer wastes together with the valorization of undesirable waste rice straw (RS) will minimize the environmental impact of waste disposal by traditional tools.
Emad S. Shafik   +2 more
doaj   +1 more source

Polysaccharides-Based Injectable Hydrogels: Preparation, Characteristics, and Biomedical Applications

open access: yesColloids and Interfaces, 2022
Polysaccharides-based injectable hydrogels are a unique group of biodegradable and biocompatible materials that have shown great potential in the different biomedical fields.
Naglaa Salem El-Sayed, Samir Kamel
doaj   +1 more source

Oxidation of cellulose in pressurized carbon dioxide [PDF]

open access: yes, 2009
This work presents first results upon oxidation of type II cellulose by nitrogen dioxide dissolved in carbon dioxide at high pressure. This reaction leads to oxidized cellulose, a natural-based bioresorbable fabric used for biomedical applications.
A. Rattaz   +21 more
core   +4 more sources

On the path to a new generation of cement-based composites through the use of lignocellulosic micro/nanofibers [PDF]

open access: yes, 2019
Due to its high biocompatibility, bio-degradability, and low cost, cellulose finds application in disparate areas of research. Here we focus our attention on the potential applications of cellulose nanofiber in cement-basedmaterials for the building ...
Chamorro Trenado, Miquel Ángel   +7 more
core   +2 more sources

Versatile carbon-loaded shellac ink for disposable printed electronics

open access: yesScientific Reports, 2021
Emerging technologies such as smart packaging are shifting the requirements on electronic components, notably regarding service life, which counts in days instead of years.
Alexandre Poulin   +3 more
doaj   +1 more source

Reactions with 1.3 propane sultone for the synthesis of cation-exchange membranes [PDF]

open access: yes, 1976
For several reasons it is interesting for membrane technology to introduce strongly anionic groups in membranes. Therefore the possibilities of 1.3 propane sultone were studied to modify cellulose, cellulose acetate and polyacrylonitrile.\ud \ud The ...
Bantjes, A.   +3 more
core   +3 more sources

Fungal cellulase; production and applications: minireview [PDF]

open access: yes, 2018
Cellulose is the most abundant biomaterial derived from the living organisms on the earth; plant is the major contributor to the cellulose pool present in the biosphere. Cellulose is used in variety of applications ranging from nanomaterials to biofuel
Ahmed Amer, Bibi Aasia
core   +1 more source

Enzymatic Hydrolysis of Alkaline Pretreated Coconut Coir [PDF]

open access: yes, 2012
The purpose of this research is to study the effect of concentration and temperature on the cellulose and lignin content, and the reducing sugars produced in the enzymatic hydrolysis of coconut coir. In this research, the coconut coir is pretreated using
Agustriyanto, Rudy   +2 more
core   +6 more sources

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