Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/94377
Title: Novel fabrication of open-pore chitin matrixes
Authors: Chow, K.S.
Khor, E. 
Issue Date: Mar-2000
Citation: Chow, K.S.,Khor, E. (2000-03). Novel fabrication of open-pore chitin matrixes. Biomacromolecules 1 (1) : 61-67. ScholarBank@NUS Repository.
Abstract: A novel method has been developed to produce open-pore chitin matrixes. Chitin solutions were loaded with calcium carbonate (CaCO3) crystals and the mixture cast to form gels. The CaCO3 - chitin gels were submerged in 1 N HCl solution to produce highly porous matrixes with good water vapor permeability, water uptake profile, and enhanced mechanical properties. The open-pore system is obtainable because CaCO3 loaded into the chitin gel reacts with 1 N HCl solution to produce gaseous carbon dioxide. Evolution of carbon dioxide during the reaction results in continuous pore structures from the matrix' bulk to surface. When the concentration of CaCO3 loaded into the chitin gel is controlled, defined homogeneous pores measuring 100-500 and 500-1000 μm, with porosities of ≈76% and 81%, respectively, can be produced.
Source Title: Biomacromolecules
URI: http://scholarbank.nus.edu.sg/handle/10635/94377
ISSN: 15257797
Appears in Collections:Staff Publications

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