A two-fold SPR-SERS sensor utilizing gold nanoparticles and graphene thin membrane as a spacer in a 3D composite structure

Nasr, Nazia1,2; Shafi, Muhammad3; Zhao, Tingkai1,2; Ali, Rawaid4; Ahmad, Ishaq2; Khan, Muhammad1,2; Deifalla, Ahmed5; Ragab, Adham E.6; Ansari, Mohd Zahid1,7

2024-01-05

10.1016/j.saa.2023.123331

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY   影响因子和分区

1386-1425

1873-3557

Localized surface plasmonic resonance (LSPR) biosensing using optical fibers has gained popularity due to its label-free approach and high sensitivity to changes in the nanoparticle surface's local index of refraction. However, improving sensitivity remains a challenge. In this study, a two-step approach was employed to fabricate a composite structure using gold nanoparticles and monolayer graphene (Gr-AuNPs). The combination of AuNPs and graphene membrane demonstrated high potential for Surface-enhanced Raman scattering (SERS) and surface plasmonic resonance (SPR) fiber sensors. The Gr-AuNPs sensor successfully detected R6G molecules with a low detection limit of 10-12 M, indicating promising SERS activity. Numerical simulations confirmed that the graphene generated densely hot spots in the nanogap region between plasmonic layers. It's interesting that the proposed SPR-SERS Sensor can detect both glucose and thiram. This demonstrates the sensors practicality and can help with a basic environmental need to find leftover pesticides in the soil. The combination of SPR-SERS dual-mode detection provides more options for detecting and verifying data, increasing the precision and repeatability of experiments.

Surface-enhanced Raman scattering Surface plasmon resonance Dual -mode sensor Au/Gr plasmonic layers Detection of glucose

SCI ; EI

英语

其他

King Saud University, Riyadh, Saudi Arabia[RSPD2023R711]

Spectroscopy

Spectroscopy

WOS:001074955000001

PERGAMON-ELSEVIER SCIENCE LTD

CHEMISTRY

2-s2.0-85172934161

Web of Science

1.Northwestern Polytech Univ, Sch Mat Sci & Engn, Xian 710072, Peoples R China
2.Northwestern Polytech Univ, NPU NCP Joint Int Res Ctr Adv Nanomat & Defects En, Xian 710060, Peoples R China
3.Southern Univ Sci & Technol, Dept Elect & Elect Engn, Shenzhen 518055, Peoples R China
4.Kunming Univ Sci & Technol, Fac Mat Sci & Engn, Kunming 650093, Peoples R China
5.Future Univ Egypt, Struct Engn & Construct Management Dept, New Cairo 11835, Egypt
6.King Saud Univ, Coll Engn, Dept Ind Engn, POB 800, Riyadh 11421, Saudi Arabia
7.Yeungnam Univ, Sch Mat Sci & Engn, 280 Daehak Ro, Gyongsan 38541, Gyeongbuk, South Korea

Nasr, Nazia,Shafi, Muhammad,Zhao, Tingkai,et al. A two-fold SPR-SERS sensor utilizing gold nanoparticles and graphene thin membrane as a spacer in a 3D composite structure[J]. SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY,2024,304.

Nasr, Nazia.,Shafi, Muhammad.,Zhao, Tingkai.,Ali, Rawaid.,Ahmad, Ishaq.,...&Ansari, Mohd Zahid.(2024).A two-fold SPR-SERS sensor utilizing gold nanoparticles and graphene thin membrane as a spacer in a 3D composite structure.SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY,304.

Nasr, Nazia,et al."A two-fold SPR-SERS sensor utilizing gold nanoparticles and graphene thin membrane as a spacer in a 3D composite structure".SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 304(2024).