Regulated synthesis of an Au NB-DT@Ag bimetallic core-molecule–shell nanostructure for reliable SERS detection

Hu, Yongjun; Ren, Haiting; Sun, Yongjun; Wang, Junjie; Qiu, Hongxing; Zhang, Shenghao; Zhang, Yueshou; Hu, Jieyu; Yu, Xingxing

doi:10.1039/d3ay00661a

Cited by 2 publications

(1 citation statement)

References 58 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Plasmonic silver nanomaterials have been also demonstrated for the detection applications because of their superior optical characteristic [ 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 ]. Based on strong surface plasmon resonance, silver nanomaterials have been extensively utilized for the detections of elements, molecules, proteins, and bacteria [ 31 , 32 , 33 ].…”

Section: Introductionmentioning

confidence: 99%

Plasmonic Au@Ag Core–Shell Nanoisland Film for Photothermal Inactivation and Surface-Enhanced Raman Scattering Detection of Bacteria

Husain,

Mutalik,

Yougbaré

et al. 2024

Nanomaterials

View full text Add to dashboard Cite

Plasmonic metal nanomaterials have been extensively investigated for their utilizations in biomedical sensing and treatment. In this study, plasmonic Au@Ag core–shell nanoisland films (Au@AgNIFs) were successfully grown onto a glass substrate using a seed-mediated growth procedure. The nanostructure of the Au@AgNIFs was confirmed through scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), and atomic force microscopy (AFM). The UV-Vis spectra of the Au@AgNIFs exhibited a broad absorption in the visible range from 300 to 800 nm because of the surface plasmon absorption. Under simulated sunlight exposure, the temperature of optimal Au@AgNIF was increased to be 66.9 °C to meet the requirement for photothermal bacterial eradication. Furthermore, the Au@AgNIFs demonstrated a consistent photothermal effect during the cyclic on/off exposure to light. For photothermal therapy, the Au@AgNIFs revealed superior efficiency in the photothermal eradication of Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus). With their unique nanoisland nanostructure, the Au@AgNIFs exhibited excellent growth efficiency of bacteria in comparison with that of the bare glass substrate. The Au@AgNIFs were also validated as a surface-enhanced Raman scattering (SERS) substrate to amplify the Raman signals of E. coli and S. aureus. By integrating photothermal therapy and SERS detection, the Au@AgNIFs were revealed to be a potential platform for bacterial theranostics.

show abstract

Section: Introductionmentioning

confidence: 99%

Plasmonic Au@Ag Core–Shell Nanoisland Film for Photothermal Inactivation and Surface-Enhanced Raman Scattering Detection of Bacteria

Husain,

Mutalik,

Yougbaré

et al. 2024

Nanomaterials

View full text Add to dashboard Cite

show abstract

Quartz fiber supported Ag nano-islands as flexible SERS substrate with stable distributed “hot-spot” in rapid detection of pesticide residue

Shi,

Huang,

2024

Microchemical Journal

View full text Add to dashboard Cite

Regulated synthesis of an Au NB-DT@Ag bimetallic core-molecule–shell nanostructure for reliable SERS detection

Abstract: In recent researches, anisotropic plasmonic core-shell nanomaterial has gained much attention in surface-enhanced Raman scattering (SERS) due to its brilliant uniformity and optical properties. Herein, a bimetallic Core-Molecule-Shell (CMS) composite...

Cited by 2 publications

References 58 publications

Plasmonic Au@Ag Core–Shell Nanoisland Film for Photothermal Inactivation and Surface-Enhanced Raman Scattering Detection of Bacteria

Plasmonic Au@Ag Core–Shell Nanoisland Film for Photothermal Inactivation and Surface-Enhanced Raman Scattering Detection of Bacteria

Quartz fiber supported Ag nano-islands as flexible SERS substrate with stable distributed “hot-spot” in rapid detection of pesticide residue

Contact Info

Product

Resources

About