Patterned Au@Ag Nanoparticles for Surface-Enhanced Raman Scattering

被引：2

作者：

Huang, Zhenkai ^{[1
]}

Chen, Yutong ^{[4
]}

Xu, Liguo ^{[5
]}

Peng, Jianping ^{[3
]}

Liu, Peijiang ^{[2
]}

机构：

[1] Foshan Univ, Sch Mat & Energy, Foshan 528000, Peoples R China

[2] Fifth Elect Res Inst Minist Ind & Informat Technol, Reliabil Phys & Applicat Technol Elect Component K, Minist Ind & Informat Technol, Guangzhou 510610, Peoples R China

[3] Foshan Univ, Sch Environm & Chem Engn, Foshan 528000, Peoples R China

[4] South China Univ Technol, South China Adv Inst Soft Matter Sci & Technol, Sch Emergent Soft Matter, Guangzhou 510640, Peoples R China

[5] Shunde Polytech, Coll Light Chem Ind & Mat Engn, Foshan 528333, Peoples R China

来源：

ACS APPLIED NANO MATERIALS | 2024年 / 7卷 / 21期

基金：

中国国家自然科学基金;

关键词：

patterned Au nanostructures; Ag-coated Au nanoparticles; surface-enhanced Raman scattering; sensitivity; broad application; SERS DETECTION; SPECTROSCOPY; NANOSTRUCTURES; NANOFLOWERS; PYRIDINE; PLATFORM; SPECTRA; LIFE; TOOL;

D O I：

10.1021/acsanm.4c05063

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Herein, a surface-enhanced Raman scattering (SERS) substrate with good sensitivity and reproducibility is fabricated by using a "one-step" process. Patterned Au nanostructures were generated employing copolymer brushes as templates, subsequently undergoing the reduction of AgNO3. Impressively, the entire experimental procedure eschews intricate synthesis steps or the necessity for stabilizer additives. The resultant Ag shell layer evenly encapsulates the Au core, yielding densely packed Ag-coated Au (Au@Ag) nanoparticles. These patterned Au@Ag nanoparticle assemblies exhibited remarkable Raman performance, achieving a minimum concentration of detection of 100 pM and an average enhancement factor of 8.8 x 109 when using 4-mercaptobenzoic acid served as the probe molecule. Experimental outcomes and analyses pertaining to thiram, methylene blue, and rhodamine 6G (R6G) confirm the substrate's pronounced Raman effect and its broad range of potential applications.

引用

页码：25099 / 25106

页数：8

共 48 条

[1] ANOMALOUSLY INTENSE RAMAN-SPECTRA OF PYRIDINE AT A SILVER ELECTRODE [J].

ALBRECHT, MG ;

CREIGHTON, JA .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1977, 99 (15) :5215-5217

[2] Photo-induced enhanced Raman spectroscopy for universal ultra-trace detection of explosives, pollutants and biomolecules [J].

Ben-Jaber, Sultan ;

Peveler, William J. ;

Quesada-Cabrera, Raul ;

Cortes, Emiliano ;

Sotelo-Vazquez, Carlos ;

Abdul-Karim, Nadia ;

Maier, Stefan A. ;

Parkin, Ivan P. .

NATURE COMMUNICATIONS, 2016, 7

[3] Application of copper-gold alloys in catalysis: current status and future perspectives [J].

Bracey, Charlotte L. ;

Ellis, Peter R. ;

Hutchings, Graham J. .

CHEMICAL SOCIETY REVIEWS, 2009, 38 (08) :2231-2243

[4] Green and Controllable Synthesis of Au-Ag Bimetal Nanoparticles by Xylan for Surface-Enhanced Raman Scattering [J].

Cai, Jihai ;

Li, Yichen ;

Liu, Chuanfu ;

Wang, Xiaoying .

ACS SUSTAINABLE CHEMISTRY & ENGINEERING, 2019, 7 (18) :15154-15162

[5]

Cecchini MP, 2013, NAT MATER, V12, P165, DOI [10.1038/NMAT3488, 10.1038/nmat3488]

[6] A Nanocellulose-Paper-Based SERS Multiwell Plate with High Sensitivity and High Signal Homogeneity [J].

Chen, Longyan ;

Ying, Binbin ;

Song, Pengfei ;

Liu, Xinyu .

ADVANCED MATERIALS INTERFACES, 2019, 6 (24)

[7] Facile synthesis of multi-branched AgPt alloyed nanoflowers and their excellent applications in surface enhanced Raman scattering [J].

Chen, Sai-Sai ;

Lin, Xiao-Xiao ;

Wang, Ai-Jun ;

Huang, Hong ;

Feng, Jiu-Ju .

SENSORS AND ACTUATORS B-CHEMICAL, 2017, 248 :214-222

[8] Optimization and Characterization of Paper-Made Surface Enhanced Raman Scattering (SERS) Substrates with Au and Ag NPs for Quantitative Analysis [J].

Dalla Marta, Silvia ;

Novara, Chiara ;

Giorgis, Fabrizio ;

Bonifacio, Alois ;

Sergo, Valter .

MATERIALS, 2017, 10 (12)

[9] Origin of symmetry breaking in the seed-mediated growth of bi-metal nano-heterostructures [J].

Du, Guifen ;

Pei, Jun ;

Jiang, Zhiyuan ;

Chen, Qiaoli ;

Cao, Zhenming ;

Kuang, Qin ;

Xie, Zhaoxiong ;

Zheng, Lansun .

SCIENCE BULLETIN, 2018, 63 (14) :892-899

[10] RAMAN-SPECTRA OF PYRIDINE ADSORBED AT A SILVER ELECTRODE [J].

FLEISCHMANN, M ;

HENDRA, PJ ;

MCQUILLAN, AJ .

CHEMICAL PHYSICS LETTERS, 1974, 26 (02) :163-166

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