Laser reshaping of gold nanoparticles for highly sensitive SERS detection of ciprofloxacin

Ao Zhang; Jijun Feng; Jingci Yan; Mengyun Hu; Ling Zhang; Heping Zeng

doi:10.1016/j.apsusc.2022.152543

Laser reshaping of gold nanoparticles for highly sensitive SERS detection of ciprofloxacin

Ao Zhang
, Jijun Feng^*
, Jingci Yan
, Mengyun Hu
, Ling Zhang
, Heping Zeng

^*Corresponding author for this work

Institute for Advanced Study in Precision Spectroscopy

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

Abstract

Laser reshaping of hexagonal gold plates is demonstrated to generate particles with different size and shape, which is further used for highly sensitive label-free surface-enhanced Raman scattering detection of synthetic antibiotic ciprofloxacin. A nanosecond laser can be used to reshape gold particles to 120-nm diameter and form a spherical-hexagonal combined structure, while a femtosecond laser can reshape the particles into spherical and triangle shapes with an average size of 6 nm. The nano-sized particles can help to enhance the Raman signal and demonstrate a superior performance with a lowest detection limit of 7.5 × 10⁻⁸ M for the ciprofloxacin sensing in milk. The presented ultrafast laser reshaping of gold nanoparticles can be exploited in a wide range of plasmonic enhanced sensing applications for a simple, fast, flexible, and portable biomaterial detection.

Original language	English
Article number	152543
Journal	Applied Surface Science
Volume	583
DOIs	https://doi.org/10.1016/j.apsusc.2022.152543
State	Published - 1 May 2022

Keywords

Ciprofloxacin
Gold nanoparticles
Laser reshaping
Surface-enhanced Raman scattering

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10.1016/j.apsusc.2022.152543

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title = "Laser reshaping of gold nanoparticles for highly sensitive SERS detection of ciprofloxacin",

abstract = "Laser reshaping of hexagonal gold plates is demonstrated to generate particles with different size and shape, which is further used for highly sensitive label-free surface-enhanced Raman scattering detection of synthetic antibiotic ciprofloxacin. A nanosecond laser can be used to reshape gold particles to 120-nm diameter and form a spherical-hexagonal combined structure, while a femtosecond laser can reshape the particles into spherical and triangle shapes with an average size of 6 nm. The nano-sized particles can help to enhance the Raman signal and demonstrate a superior performance with a lowest detection limit of 7.5 × 10−8 M for the ciprofloxacin sensing in milk. The presented ultrafast laser reshaping of gold nanoparticles can be exploited in a wide range of plasmonic enhanced sensing applications for a simple, fast, flexible, and portable biomaterial detection.",

keywords = "Ciprofloxacin, Gold nanoparticles, Laser reshaping, Surface-enhanced Raman scattering",

author = "Ao Zhang and Jijun Feng and Jingci Yan and Mengyun Hu and Ling Zhang and Heping Zeng",

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doi = "10.1016/j.apsusc.2022.152543",

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T1 - Laser reshaping of gold nanoparticles for highly sensitive SERS detection of ciprofloxacin

AU - Zhang, Ao

AU - Feng, Jijun

AU - Yan, Jingci

AU - Hu, Mengyun

AU - Zhang, Ling

AU - Zeng, Heping

PY - 2022/5/1

Y1 - 2022/5/1

N2 - Laser reshaping of hexagonal gold plates is demonstrated to generate particles with different size and shape, which is further used for highly sensitive label-free surface-enhanced Raman scattering detection of synthetic antibiotic ciprofloxacin. A nanosecond laser can be used to reshape gold particles to 120-nm diameter and form a spherical-hexagonal combined structure, while a femtosecond laser can reshape the particles into spherical and triangle shapes with an average size of 6 nm. The nano-sized particles can help to enhance the Raman signal and demonstrate a superior performance with a lowest detection limit of 7.5 × 10−8 M for the ciprofloxacin sensing in milk. The presented ultrafast laser reshaping of gold nanoparticles can be exploited in a wide range of plasmonic enhanced sensing applications for a simple, fast, flexible, and portable biomaterial detection.

AB - Laser reshaping of hexagonal gold plates is demonstrated to generate particles with different size and shape, which is further used for highly sensitive label-free surface-enhanced Raman scattering detection of synthetic antibiotic ciprofloxacin. A nanosecond laser can be used to reshape gold particles to 120-nm diameter and form a spherical-hexagonal combined structure, while a femtosecond laser can reshape the particles into spherical and triangle shapes with an average size of 6 nm. The nano-sized particles can help to enhance the Raman signal and demonstrate a superior performance with a lowest detection limit of 7.5 × 10−8 M for the ciprofloxacin sensing in milk. The presented ultrafast laser reshaping of gold nanoparticles can be exploited in a wide range of plasmonic enhanced sensing applications for a simple, fast, flexible, and portable biomaterial detection.

KW - Ciprofloxacin

KW - Gold nanoparticles

KW - Laser reshaping

KW - Surface-enhanced Raman scattering

UR - https://www.scopus.com/pages/publications/85123235297

U2 - 10.1016/j.apsusc.2022.152543

DO - 10.1016/j.apsusc.2022.152543

M3 - 文章

AN - SCOPUS:85123235297

SN - 0169-4332

VL - 583

JO - Applied Surface Science

JF - Applied Surface Science

M1 - 152543

ER -

Laser reshaping of gold nanoparticles for highly sensitive SERS detection of ciprofloxacin

Abstract

Keywords

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