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Improving the Fluorescence Concentration Quenching of Porphyrin Potassium Salt by Ag Nano Colloids
Yang, Ailing1; Wang, Ning2; Wang, Yujin1; Li, Shunpin1; Wang, Lele1; Yang, Yun1; Bao, Xichang2; Yang, Renqiang2
2016-04-01
Source PublicationJOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
Volume16Issue:4Pages:3646-3652
AbstractSilver nanoparticles (NPs) with diameters less than 25 nm, and 5, 10, 15, 20-tetrakis(4-carboxyphenyl) porphyrin potassium salt (K4TCPPS) was synthesized. By adding silver colloids into the K4TCPPS solutions, the fluorescence concentration quenching of the K4TCPPS solutions was improved between 1 x 10(-6)-5 x 10(-4) M, depending on the size of the Ag NPs, the concentration of the K4TCPPS and the excitation wavelength. Under excitation wavelengths of 360 and 414 nm, the enhancement was in the range of 0.34-22.8, and 0.71-82.46, respectively. The enhancement increased with decreasing size of the Ag NPs. At the two highest enhancements, the concentrations of the K4TCPPS solutions were 1 x 10(-4) and 1 x 10(-5) M respectively, and the size of the Ag NPs was about 5 nm. The main reasons for the fluorescence enhancing effect are due to fluorescence resonance energy transfer (FRET) between K4TCPPS molecules and Ag NPs, and decreased collision quenching between free K4TCPPS molecules, and free K4TCPPS molecules with Ag NPs. Our results showed that Ag NPs with sizes of about 5 nm can effectively improve the fluorescence concentration quenching of K4TCPPS solutions. This result also suggests that it is possible to use noble metal NPs to improve fluorescence concentration quenching.
SubtypeArticle
KeywordImprovement Fluorescence Concentration Quenching Porphyrin Potassium Salt Ag Nano Colloids Fret Collision Quenching
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
DOI10.1166/jnn.2016.11881
WOS KeywordRESONANCE ENERGY-TRANSFER ; SILVER NANOPARTICLES ; STEADY-STATE ; SENSOR ; CELLS ; MESO
Indexed BySCI
Language英语
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
Funding OrganizationNational Natural Science Foundation of China(41172110 ; Shandong Provincial Natural Science Foundation(ZR2011BZ007) ; 61107090)
WOS SubjectChemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS IDWOS:000386122700086
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qibebt.ac.cn/handle/337004/9067
Collection先进有机功能材料研究组
Affiliation1.Ocean Univ China, Dept Phys, Qingdao 266100, Peoples R China
2.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China
Recommended Citation
GB/T 7714
Yang, Ailing,Wang, Ning,Wang, Yujin,et al. Improving the Fluorescence Concentration Quenching of Porphyrin Potassium Salt by Ag Nano Colloids[J]. JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY,2016,16(4):3646-3652.
APA Yang, Ailing.,Wang, Ning.,Wang, Yujin.,Li, Shunpin.,Wang, Lele.,...&Yang, Renqiang.(2016).Improving the Fluorescence Concentration Quenching of Porphyrin Potassium Salt by Ag Nano Colloids.JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY,16(4),3646-3652.
MLA Yang, Ailing,et al."Improving the Fluorescence Concentration Quenching of Porphyrin Potassium Salt by Ag Nano Colloids".JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY 16.4(2016):3646-3652.
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