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  4. 岩石圈演化国家重点实验室
Polarized Raman spectroscopy reveals unaligned orientation in pearls

文献类型：期刊论文

作者Gao, Jing2,3,4,7; Zhang, Jinli6; Wu, Wanghua1; Yen, Chien-Kuo5; Su, Wen3,4
刊名JOURNAL OF RAMAN SPECTROSCOPY
出版日期2023-01-06
页码8
关键词aragonite biomineral crystallographic orientation depolarization ratio polarized Raman imaging
ISSN号0377-0486
DOI10.1002/jrs.6492
英文摘要Polarized Raman spectroscopy is a useful technique in studying orientation of molecular vibrations of crystals, which, however, has been applied insufficiently in crystallography, mineralogy, or geology. This present study is devoted to measure the transversal orientation of high-quality cultivated pearls using polarized Raman spectroscopy. The pearls were cultivated by Pinctada fucata in Japan, consisting of aragonite dominantly. On the pearl surface, the aragonite micro-crystals show irregularly hexagonal and pentagonal shapes, orienting their c axes towards the pearl surface. A number of aragonite micro-crystals makes up a lamina with a noncircular contour, and a batch of laminae stacks up with a decreasing area from bottom to top to form a target pattern. So there is an abundant of target patterns spreading over the pearl surface. Using a marker on the pearl surface as a reference, angular variation of aragonite is quantifiable by measuring mode intensities of aragonite and depolarization ratio. Polarized Raman images are collected on the pearl surface, which show spatial differences in orientation of aragonite micro-crystals on the mesoscopic scale. This transversal heterogeneity exists not only between different laminae but also between aragonite micro-crystals on the same lamina. We suggest that the development of the stress around the aragonite micro-grains lead to the angular variations of aragonite. The orientation of biominerals has been studied using transmission electron microscope (TEM) and electron back-scattered diffraction (EBSD). The present study indicates another sensitive technique of polarized Raman spectroscopy to evaluate molecular orientation in biominerals.
WOS关键词CRYSTALLOGRAPHIC STRUCTURE ; CRYSTAL ORIENTATION ; SINGLE-CRYSTAL ; NACRE ; ORGANIZATION ; ARAGONITE ; BIVALVIA ; GROWTH
资助项目National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; [41902035] ; [2018M640179] ; [2019T120132]
WOS研究方向Spectroscopy
语种英语
WOS记录号WOS:000908142600001
出版者WILEY
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation
源URL[http://ir.iggcas.ac.cn/handle/132A11/106922]  
专题地质与地球物理研究所_岩石圈演化国家重点实验室
通讯作者Gao, Jing
作者单位1.WITec Beijing Sci Technol Co Ltd, Beijing, Peoples R China
2.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Lab Extraterr Ocean Syst, Sanya 572000, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing, Peoples R China
4.Chinese Acad Sci, Inst Geol & Geophys, Inst Earth Sci, Beijing, Peoples R China
5.Nei Hu Community Coll, Taipei, Peoples R China
6.Peking Univ, Gem Appraisal Ctr, Sch Earth & Space Sci, Beijing, Peoples R China
7.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Lab Extraterr Ocean Syst, Sanya, Peoples R China
推荐引用方式
GB/T 7714		 Gao, Jing,Zhang, Jinli,Wu, Wanghua,et al. Polarized Raman spectroscopy reveals unaligned orientation in pearls[J]. JOURNAL OF RAMAN SPECTROSCOPY,2023:8.
APA Gao, Jing,Zhang, Jinli,Wu, Wanghua,Yen, Chien-Kuo,&Su, Wen.(2023).Polarized Raman spectroscopy reveals unaligned orientation in pearls.JOURNAL OF RAMAN SPECTROSCOPY,8.
MLA Gao, Jing,et al."Polarized Raman spectroscopy reveals unaligned orientation in pearls".JOURNAL OF RAMAN SPECTROSCOPY (2023):8.

入库方式： OAI收割

来源：地质与地球物理研究所

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