中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Multifunctional human serum albumin in the surface-enhanced Raman spectroscopy of porphyrin: demetalation promoter, molecular spacer and stabilizer

文献类型:期刊论文

作者Jia, Guoqing1,2; Feng, Zhaochi1; Wei, Chunying1; Li, Can1
刊名journal of raman spectroscopy
出版日期2010-12-01
卷号41期号:12页码:1615-1620
关键词SERS H(2)TMPyP4 Ag(II)TMPyP4 demetalation molecular spacer
英文摘要human serum albumin (hsa), a model protein, was introduced to the surface-enhanced raman spectroscopy (sers) of cationic porphyrin 5,10,15,20-tetrakis(1-methyl-4-pyridyl)-21h,23h-porphine (h(2)tmpyp4). hsa was found to have a great influence not only on ag nanoparticle aggregation state but also on the interaction between ag nanoparticle and h(2)tmpyp4 molecules. in the (h(2)tmpyp4-ag colloid)/hsa system, addition of h(2)tmpyp4 to ag colloid led to a quick ag colloid aggregation, and subsequent hsa addition could stabilize this system. the sers spectrum was dominated by a combination of ag(ii)tmpyp4 and free base h(2)tmpyp4. more interestingly, a photoinduced demetalation of ag(ii)tmpyp4 to free base h(2)tmpyp4 was observed in the (h(2)tmpyp4-ag colloid)/hsa system. this demetalation process was partially reversible when the laser was turned off or the laser power was reduced. in this case, hsa acts as both a stabilizer and a demetalation promoter. in the (hsa-h(2)tmpyp4)/ag colloid system, when h(2)tmpyp4 was premixed with hsa prior to the ag colloid addition, no obvious ag colloid aggregation appeared, and the sers spectrum was just characteristic of free base h(2)tmpyp4. in this case, hsa is proposed to function as both a stabilizer and a molecular spacer. copyright (c) 2010 john wiley & sons, ltd.
WOS标题词science & technology ; technology
类目[WOS]spectroscopy
研究领域[WOS]spectroscopy
关键词[WOS]free-base porphyrin ; ablated ag colloids ; resonance raman ; nucleic-acids ; silver ; scattering ; metalation ; nanoparticles ; particles ; kinetics
收录类别SCI
语种英语
WOS记录号WOS:000286151400008
公开日期2015-11-17
源URL[http://159.226.238.44/handle/321008/141904]  
专题大连化学物理研究所_中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714
Jia, Guoqing,Feng, Zhaochi,Wei, Chunying,et al. Multifunctional human serum albumin in the surface-enhanced Raman spectroscopy of porphyrin: demetalation promoter, molecular spacer and stabilizer[J]. journal of raman spectroscopy,2010,41(12):1615-1620.
APA Jia, Guoqing,Feng, Zhaochi,Wei, Chunying,&Li, Can.(2010).Multifunctional human serum albumin in the surface-enhanced Raman spectroscopy of porphyrin: demetalation promoter, molecular spacer and stabilizer.journal of raman spectroscopy,41(12),1615-1620.
MLA Jia, Guoqing,et al."Multifunctional human serum albumin in the surface-enhanced Raman spectroscopy of porphyrin: demetalation promoter, molecular spacer and stabilizer".journal of raman spectroscopy 41.12(2010):1615-1620.

入库方式: OAI收割

来源:大连化学物理研究所

浏览0
下载0
收藏0
其他版本

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。