2026-06-08T02:42:18Zhttps://docta.ucm.es/rest/oai/requestoai:docta.ucm.es:20.500.14352/131062023-08-27T21:19:51Zcom_20.500.14352_14col_20.500.14352_15
Docta Complutense
author
Kolosovas Machuca, Eleazar Samuel
author
Cuadrado Conde, Alexander
author
Ojeda Galván, Hiram Joazet
author
Ortiz Dosal, Luis Carlos
author
Hernández Arteaga, Aida Catalina
author
Rodríguez Aranda, María del Carmen
author
Navarro Contreras, Hugo Ricardo
author
Alda, Javier
author
González Contreras, Francisco Javier
2023-06-17T13:19:52Z
2023-06-17T13:19:52Z
2019-02-06
2079-4991
10.3390/nano9020211
https://hdl.handle.net/20.500.14352/13106
https://doi.org/10.3390/nano9020211
https://www.mdpi.com/2079-4991/9/2/211
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.
eng
Atribución 3.0 España
Detection of Histamine Dihydrochloride at Low Concentrations Using Raman Spectroscopy Enhanced by Gold Nanostars Colloids
journal article
URL
https://docta.ucm.es/bitstreams/f62f281a-acaa-4336-b13d-a1332972aaad/download
File
MD5
53b39be83aba5da3e11c02b667542031
1851564
application/pdf
ALda_nanomaterials-09-00211-v2.pdf