人体皮肤纤维细胞远程拉曼光谱检测研究  

Remote Raman Spectra Detection of Human Skin Fibroblasts

作　　者：赵春芹 陈娜[1] 陈振宜[1] 张恒[1] 刘书朋[1] 王廷云[1] Zhao Chunqin;Chen Na;Chen Zhenyi;Zhang Heng;Liu Shupeng;Wang Tingyun(Key Laboratory of Specialty Fiber Optics and Optical Access Networks, Shanghai Institute for Advanced Communication and Data Science, School of Communication and Information Engineering, Shanghai University, Shanghai 200444, Chin)

机构地区：[1]上海大学特种光纤与光接入网重点实验室,上海先进通信与数据科学研究院,上海大学通信与信息工程学院,上海200444

出　　处：《中国激光》2018年第5期194-202,共9页Chinese Journal of Lasers

基　　金：国家自然科学基金(61575120,61475095,61027015,61177088); 上海大学特种光纤与光接入网省部共建国家重点实验室培育基地开放课题(SKLSFO2015-01)

摘　　要：在具有表面增强拉曼散射(SERS)基底的锥形光纤探针表面生长人体皮肤纤维细胞,研究了人体皮肤纤维细胞的远程拉曼光谱检测。采用熔融拉锥和化学腐蚀法制备锥形光纤探针,通过化学自组装法将金纳米颗粒固化于锥形光纤探针表面制备出SERS锥形光纤探针。将人体皮肤纤维细胞置于金溶胶培养基混合液中培养,并贴壁生长于SERS光纤探针表面;然后利用显微拉曼光谱仪通过远程检测得到人体皮肤纤维细胞的SERS光谱,并以直接测量方式得到吞金颗粒和未吞金颗粒细胞的SERS光谱。结合远程检测和直接检测结果分析得到人体皮肤纤维细胞拉曼光谱的峰位归属,以及各拉曼特征峰对应的细胞内部组分信息。利用锥形光纤探针能够深入组织内部实施远程检测,有助于在线SERS测量在生物医学研究和诊断中的应用。人体皮肤纤维细胞的拉曼谱检测为在体研究低功率激光对延迟伤口愈合的机理提供了一种手段。The Raman spectra detection of human skin fibroblasts is studied by the growth of human skin fibroblasts on the surface of tapered fiber probe with surface enhanced Raman scattering（SERS）substrates.The tapered fiber probe is prepared by melt-pulling and chemical-etching method.The gold nanoparticles are cured by chemical selfassembly on the surface of the probe to prepare a tapered SERS fiber probe.The human skin fibroblasts are cultured on the surface of the SERS fiber probe inside the mixture of gold sol and culture medium.Then,using a microRaman spectrometer,we obtain the surface-enhanced Raman spectra of the human skin fibroblasts with remote detection method,meanwhile,we obtain the SERS spectra of the human skin fibroblasts with and without swallowing gold nanoparticles with direct measurement method.Based on the results of remote and direct detections,we analyze the Raman peak attribution of human skin fibroblasts,and the internal components information corresponding to the Raman characteristic peaks.The use of the tapered fiber probe allows the remote detection going deep inside the tissue,which may help the application of on-line SERS measurements in biomedical research and diagnosis.While Raman spectrum measurement of the human skin fibroblasts also provides means for the in vivo study on the mechanism of low power laser exposure in delaying wound healing.

关 键 词：生物光学 人体皮肤纤维细胞 锥形光纤探针 表面增强拉曼散射 远程检测 

分 类 号：TN253[电子电信—物理电子学]