Detection of Histamine Dihydrochloride at Low Concentrations Using Raman Spectroscopy Enhanced by Gold Nanostars Colloids

被引：16

作者：

Samuel Kolosovas-Machuca, Eleazar ^{[1
]}

Cuadrado, Alexander ^{[1
,2
]}

Joazet Ojeda-Galvan, Hiram ^{[1
,3
]}

Carlos Ortiz-Dosal, Luis ^{[4
]}

Catalina Hernandez-Arteaga, Aida ^{[1
]}

del Carmen Rodriguez-Aranda, Maria ^{[1
]}

Ricardo Navarro-Contreras, Hugo ^{[1
]}

Alda, Javier ^{[2
]}

Javier Gonzalez, Francisco ^{[1
]}

机构：

[1] Univ Autonoma San Luis Potosi, Coordinac Innovac & Aplicac Ciencia & Tecnol, San Luis Potosi 78210, Mexico

[2] Univ Complutense Madrid, Appl Opt Complutense Grp, Fac Opt & Optometry, Av Arcos de Jalon 118, Madrid 28037, Spain

[3] Benemerita Univ Autonoma Puebla, Inst Fis Luis Terrazas, Av San Claudio 18, Puebla 72570, Mexico

[4] Univ Autonoma San Luis Potosi, Doctorado Inst Ingn & Ciencias Mat, San Luis Potosi 78210, Mexico

来源：

NANOMATERIALS | 2019年 / 9卷 / 02期

关键词：

SERS; histamine; nanostars; nanophotonics; computational electromagnetism; PATHOGEN DETECTION; BIOGENIC-AMINES; SERS; SCATTERING; NANOPARTICLES; FISH; ELECTRODEPOSITION; PERSPECTIVE; FOODS; TUNA;

D O I：

10.3390/nano9020211

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this paper, we report a fast and easy method to detect histamine dihydrochloride using gold nanostars in colloidal aqueous solution as a highly active SERS platform with potential applications in biomedicine and food science. This colloid was characterized with SEM and UV-Vis spectroscopy. Also, numerical calculations were performed to estimate the plasmonic resonance and electric field amplification of the gold nanoparticles to compare the difference between nanospheres and nanostars. Finally, aqueous solutions of histamine dihydrochloride were prepared in a wide range of concentrations and the colloid was added to carry out SERS. We found SERS amplified the Raman signal of histamine by an enhancement factor of 1.0 x 10(7), demonstrating the capability of the method to detect low concentrations of this amine molecule.

引用

页数：11

共 44 条

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