Can Spherical Vaterite Be Biomimetic Synthesized by Using Histidine-Grafted-Chitosan as an Organic Matrix?

Extensive application of vaterite in ceramics, biomedical implanting, encapsulation and drug delivery require the effectively controlling the size, morphology and polymorph of the obtained calcium carbonate. For this purpose, vaterite was synthesized by using histidine-grafted-chitosan (NHCS) as an...

Full description

Saved in:
Bibliographic Details
Published in:Journal of inorganic and organometallic polymers and materials 2017-07, Vol.27 (4), p.1014-1021
Main Authors: Chen, Zhangxu, Li, Xianxue, Zheng, Bingyun
Format: Article
Language:English
Subjects:
Biomedical materials
Biomimetics
Calcite
Calcium carbonate
Ceramics
Chemistry
Chemistry and Materials Science
Chitosan
Crystal structure
Drug delivery systems
Emission analysis
Encapsulation
Fourier analysis
Fourier transforms
FTIR spectrometers
Grafting
Histidine
Inorganic Chemistry
Morphology
Organic Chemistry
Phase transitions
Polymer Sciences
Scanning electron microscopy
Surgical implants
Synthesis
X-ray diffraction
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Extensive application of vaterite in ceramics, biomedical implanting, encapsulation and drug delivery require the effectively controlling the size, morphology and polymorph of the obtained calcium carbonate. For this purpose, vaterite was synthesized by using histidine-grafted-chitosan (NHCS) as an organic matrix in this research. The effects of the initial concentration of NHCS, and the aging time on the morphology and polymorph were investigated. The prepared vaterite was characterized by field-emission scanning electron microscope, Fourier transform infrared spectrometer and X-ray diffraction. The result showed vaterite has presented as an advantage phase over calcite phase in presence of NHCS system, and the 91.6 wt% percentage of vaterite can be achieved when the initial concentration of NHCS is 1.000 mg L −1 . Prolonging aging time from 0 to 24 h, the percentage of vaterite would be deduced from 94.4 to 86.2 wt%, in which the flaky-floret and multilayered vaterite transforms to calcite slowly. In contrast, a single crystalline rhombohedral calcite phase can only be obtained without adding NHCS in pure water system. The possible growth mechanism has been proposed by investigating the transition of crystal phase and formation of the vaterite during the growth process. The result indicates that NHCS is an effective template to biomimetic synthesis of vaterite, and provides a novel method for controlling synthesis other biomaterials. Graphical Abstract
ISSN:1574-1443
1574-1451
DOI:10.1007/s10904-017-0549-1