NDLI: Control of colloidal CaCO3 suspension by using biodegradable polymers during fabrication

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Control of colloidal CaCO3 suspension by using biodegradable polymers during fabrication

Content Provider	Directory of Open Access Journals (DOAJ)
Author	Nemany Abdelhamid Nemany Hanafy Maria Luisa De Giorgi Concetta Nobile Ross Rinaldi Stefano Leporatti
Abstract	Fabrication of homogenous CaCO3 particles is a significant step in assembling polyelectrolyte capsules. It is crucial to control the dimensions, the shape and the charge of the calcium carbonate particles in order to have homogenously separated and charged templates as final result. For this reason, previously. hey have been deeply investigated. Recently, crystallization of CaCO3 was done by adding poly (sodium 4-styrenesulfonate) (PSS) as negatively charged polymer and poly (allylamine hydrochloride) (PAH) as positively charged polymer and the results were surprising. The homogenous particles were separated and they carried the same charge of the used polymer. The aim of this work was to investigate the synthesis process of CaCO3 particles in different experimental conditions: calcium carbonate was produced in presence and in absence of water and with addition of appropriate polymers. In particular, chitosan (CHI) and poly acrylic acid (PAA) were chosen as biodegradable polymers whereas PSS and PAH were chosen as non-biodegradable polymers. Shape and diameter of particles were investigated by using transmission and scanning electron microscopy, elemental composition was inferred by energy dispersive X-ray analyses whereas their charges were explored by using zeta potential.
Related Links	http://www.sciencedirect.com/science/article/pii/S2314853515000104
ISSN	23148535
DOI	10.1016/j.bjbas.2015.02.009
Journal	Beni-Suef University Journal of Basic and Applied Sciences
Issue Number	1
Volume Number	4
e-ISSN	23148543
Language	English
Publisher	SpringerOpen
Publisher Date	2015-01-01
Publisher Place	United Kingdom
Access Restriction	Open
Subject Keyword	Medicine (general) Science Calcium Carbonate Poly (sodium 4-styrenesulfonate) (pss) Poly (allylamine Hydrochloride) (pah) Chitosan (chi) Poly Acrylic Acid (paa) Biodegradable Polymers Not Biodegradable Polymers Medicine Medicine (General)
Content Type	Text
Resource Type	Article
Subject	Medicine Agricultural and Biological Sciences Pharmaceutical Science

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