Fine controlling of the performance nano-photonic sensors by simple, low cost process

This study has developed a new technique for detecting extremely low ciprofloxacin (CIPRO) antibiotic concentrations using silver nanoparticle/a porous silicon (AgNPs/PSi) SERS active substrate. In order to deposit aggregated AgNPs at various concentrations (10 –3 , 5 × 10 –3 , 10 –2 , 5 × 10 –2  M)...

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Bibliographic Details
Published inJournal of optics (New Delhi) Vol. 53; no. 3; pp. 1861 - 1871
Main Authors Shlaga, R. A., Alwan, Alwan M., Mohammed, Mohammed S.
Format Journal Article
LanguageEnglish
Published New Delhi Springer India 01.07.2024
Subjects
Lasers
Optical Devices
Optics
Photonics
Physics
Physics and Astronomy
Research Article
CIPRO antibiotics
KOH pathway
Acidic condition
Silver nanoparticles
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Summary:This study has developed a new technique for detecting extremely low ciprofloxacin (CIPRO) antibiotic concentrations using silver nanoparticle/a porous silicon (AgNPs/PSi) SERS active substrate. In order to deposit aggregated AgNPs at various concentrations (10 –3 , 5 × 10 –3 , 10 –2 , 5 × 10 –2  M) with the highest density of hotspot regions, a silicon nanocrystalline sample prepared using the KOH method has been used as a mold and a reducing agent. The fabrication of an AgNPs/PSi SERS substrate with the highly improved performance has been studied for detecting the CIPRO antibiotic at variable concentrations of about (10 −7 –10 −13  M). The findings demonstrated that the suggested AgNPs/PSi SERS substrate offers a reliable method for detecting CIPRO at low concentrations, and it is discovered that CIPRO is relatively close to the surface. This process is considered a novel work which can be an adopted modification at the plasmonic features of metallic nanoparticles for SERs application.
ISSN:0972-8821
0974-6900
DOI:10.1007/s12596-023-01346-z