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You searched for: Journal Carbohydrate polymers Remove constraint Journal: Carbohydrate polymers Publication Year 2007 Remove constraint Publication Year: 2007 Source 2007 v.67 no.4 Remove constraint Source: 2007 v.67 no.4 Subject biopolymers Remove constraint Subject: biopolymers
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1. Depositing Cu₂O of different morphology on chitosan nanoparticles by an electrochemical method

Author:
Chen, J.Y.; Zhou, P.J.; Li, J.L.; Li, S.Q.
Source:
Carbohydrate polymers 2007 v.67 no.4 pp. 623-629
ISSN:
0144-8617
Subject:
cuprous oxide; chitosan; sodium sulfate; electrochemistry; electron transfer; nanotechnology; chemical interactions; biopolymers; heavy metals; composite polymers; pollution control; wastewater treatment; chemical reactions; nanocomposites; ion exchange
Abstract:
... The chitosan nanoparticles were prepared with the least chemical productions by adding sodium sulfate. The cuprous oxide (Cu₂O)/chitosan nanocomposites were prepared by electrochemical deposition of nanocrystalline Cu₂O on chitosan nanoparticles. With the change of the reaction conditions, it was found that Cu₂O nanoparticles could be leafage-like or big spherical particles coated on the surface o ...
DOI:
10.1016/j.carbpol.2006.07.003

2. Viscoelastic properties of dispersed chitosan/xanthan hydrogels

Author:
Martínez-Ruvalcaba, A.; Chornet, E.; Rodrigue, D.
Source:
Carbohydrate polymers 2007 v.67 no.4 pp. 586-595
ISSN:
0144-8617
Subject:
chitosan; xanthan gum; viscoelasticity; shear stress; chemical concentration; dispersions; electrostatic interactions; rheological properties; swelling (materials); gels; equations; testing; duration; chemical structure; biopolymers; hydrocolloids
Abstract:
... In this work a gel was formed by complexation of two natural polyelectrolytes, chitosan and xanthan. Changes in the hydrogels rheological properties have been studied in terms of hydrogel concentration (7-10% w/w), chemical media used for the hydrogel dispersion, and 'test lag time'; i.e., the time between hydrogel dispersion in the chemical media and the start of the rheological test (up to 390 m ...
DOI:
10.1016/j.carbpol.2006.06.033