RT Journal Article
T1 Detection of Histamine Dihydrochloride at Low Concentrations Using Raman Spectroscopy Enhanced by Gold Nanostars Colloids
A1 Kolosovas Machuca, Eleazar Samuel
A1 Cuadrado Conde, Alexander
A1 Ojeda Galván, Hiram Joazet
A1 Ortiz Dosal, Luis Carlos
A1 Hernández Arteaga, Aida Catalina
A1 Rodríguez Aranda, María del Carmen
A1 Navarro Contreras, Hugo Ricardo
A1 Alda, Javier
A1 González Contreras, Francisco Javier
AB 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 × 10 7 , demonstrating the capability of the method to detect low concentrations of this amine molecule.
PB MDPI
SN 2079-4991
YR 2019
FD 2019-02-06
LK https://hdl.handle.net/20.500.14352/13106
UL https://hdl.handle.net/20.500.14352/13106
LA eng
NO Received: 20 December 2018 / Revised: 16 January 2019 / Accepted: 22 January 2019 / Published: 6 February 2019(This article belongs to the Special Issue Biomedical Applications of Nanoparticles)
NO Consejo Nacional de Ciencia y Tecnología (CONACyT) (México)
NO Terahertz Science and Technology National Lab (LANCYTT)
NO Universidad Autónoma San Luis de Potosí (México)
DS Docta Complutense
RD 9 abr 2025