Studies on the Diffusion of Direct Dyes in Chitosan Film

Abstract

The diffusion of two direct dyes in chitosan film under neutral conditions has been followed using the Sekido roll technique. Analysis of the concentration profiles confirms that the diffusion process is similar to that observed with direct dyes on cellulose and that the dependence of the diffusion coefficient on dye concentration follows the same general form, DC = D0(1 + βC), on both substrates.

Authors and Affiliations

Simon Mazengarb, George AF Roberts

Keywords

Related Articles

RESEARCH OF THE INFLUENCE OF CHITIN-CONTAINING FOOD ADDITIVES ON THE RHEOLOGICAL PROPERTIES AND BIOLOGICAL VALUE OF MINCED FISH

The problem of the deficiency of dietary fibre and mineral substances in the diet of modern man is well known. This problem is proposed to be solved by making a food product - fishballs - based on a combination of minced...

SURGICAL BIOCOMPOSITES WITH CHITOSAN

Reported are investigations in the formulation and preparation method of hydroxyapatite composites in form of glue, sponge and shaped products. Osteosynthesis ability, mechanical properties susceptiblity to biodegradatio...

THE USE OF ACTIVE CARBON IMMOBILISED ON CHITOSAN BEADS FOR RB5 AND BV10 DYE REMOVAL FROM AQUEOUS SOLUTIONS

This paper presents the adsorption of dyes – the anionic Reactive Black 5 (RB5) and cationic Basic Violet 10 (BV10) dyes – on activated carbon (AC) immobilised on chitosan (CHs). The results were compared with the remova...

THE EFFECT OF CHITOSAN AND PYTHIUM OLIGANDRUM USED IN PROTECTION OF POTATO TUBERS AGAINST LATE BLIGHT AND SOFT ROT

Obtained results from experiments indicate the possibility of use both preparations Pythium oligandrum and Biochikol 020 PC in the protection of potatoes against pathogens caused tubers’ diseases: Phytophthora infestans,...

NEW CHITOSAN WOUND DRESSING – FIRST STEP - THE CYTOTOXICITY EVALUATION

The cytotoxicity of chitosan with polyvinox (PCH) and crosslinked chitosan (CH) was studied and analyzed. Cell viability was determined by thiazolyl blue formazan (MTT) assay and cell morphology observations were carried...

Download PDF file
  • EP ID EP73718
  • DOI -
  • Views 100
  • Downloads 0

How To Cite

Simon Mazengarb, George AF Roberts (2009). Studies on the Diffusion of Direct Dyes in Chitosan Film. Progress on Chemistry and Application of Chitin and its Derivatives, 0(), 25-32. https://europub.co.uk./articles/-A-73718