Bimetallic AuPt nanoparticles-based SERS substrate for high-performance endosulfan detection.
| Title: | Bimetallic AuPt nanoparticles-based SERS substrate for high-performance endosulfan detection. |
|---|---|
| Authors: | Dien ND; Faculty of Occupational Safety and Health, Vietnam Trade Union University 169 Tay Son Street, Kim Lien Ward Ha Noi City 10000 Vietnam.; Vu XH; Institute of Science and Technology, TNU-University of Sciences Phan Dinh Phung Ward Thai Nguyen province 24000 Vietnam.; Ha Pham TT; Faculty of Chemistry, TNU-University of Sciences Phan Dinh Phung Ward Thai Nguyen province 24000 Vietnam haptt@tnus.edu.vn.; Nga PT; Institute of Science and Technology, TNU-University of Sciences Phan Dinh Phung Ward Thai Nguyen province 24000 Vietnam.; Faculty of Secondary School, Hoa Lu University 2 Xuan Thanh Street, Hoa Lu Ward Ninh Binh province Vietnam.; Trang TT; Institute of Science and Technology, TNU-University of Sciences Phan Dinh Phung Ward Thai Nguyen province 24000 Vietnam.; Lan NT; Institute of Science and Technology, TNU-University of Sciences Phan Dinh Phung Ward Thai Nguyen province 24000 Vietnam.; Van Hao N; Institute of Science and Technology, TNU-University of Sciences Phan Dinh Phung Ward Thai Nguyen province 24000 Vietnam.; Dung NT; Institute of Science and Technology, TNU-University of Sciences Phan Dinh Phung Ward Thai Nguyen province 24000 Vietnam.; Thuy Nguyen TT; Faculty of Chemistry, TNU-University of Sciences Phan Dinh Phung Ward Thai Nguyen province 24000 Vietnam haptt@tnus.edu.vn.; Kim Chi TT; School of Electrical and Electronic Engineering, Hanoi University of Industry 298 Cau Dien, Tay Tuu Hanoi Vietnam.; Huong Giang TT; Institute of Materials Science, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Road, Nghia Do Ward Ha Noi City 10000 Vietnam.; Xuan VT; Faculty of Chemistry, TNU-University of Sciences Phan Dinh Phung Ward Thai Nguyen province 24000 Vietnam haptt@tnus.edu.vn.; Hung TD; Institute of Science and Technology, TNU-University of Sciences Phan Dinh Phung Ward Thai Nguyen province 24000 Vietnam.; Anh Kiet LT; Faculty of Chemistry, TNU-University of Sciences Phan Dinh Phung Ward Thai Nguyen province 24000 Vietnam haptt@tnus.edu.vn.; Long HD; Faculty of Chemistry, TNU-University of Sciences Phan Dinh Phung Ward Thai Nguyen province 24000 Vietnam haptt@tnus.edu.vn.; Nguyen DD; Faculty of Chemistry, TNU-University of Sciences Phan Dinh Phung Ward Thai Nguyen province 24000 Vietnam haptt@tnus.edu.vn.; Tan PT; Hung Yen University of Technology and Education Viet Tien Ward Hung Yen Province Vietnam.; Anh Tuyet NV; Institute of Science and Technology, TNU-University of Sciences Phan Dinh Phung Ward Thai Nguyen province 24000 Vietnam.; Hung Yen High School for the Gifted 1 Chu Van An Pho Hien Hung Yen Vietnam.; Cuong TD; Quang Ninh Provincial Center for Vocational Training-Continuing Education, Group 45 Cao Thang 5 Area, Ha Lam Ward Quang Ninh Province Vietnam. |
| Source: | RSC advances [RSC Adv] 2026 Apr 10; Vol. 16 (21), pp. 19010-19023. Date of Electronic Publication: 2026 Apr 10 (Print Publication: 2026). |
| Publication Type: | Journal Article |
| Language: | English |
| Journal Info: | Publisher: Royal Society of Chemistry Country of Publication: England NLM ID: 101581657 Publication Model: eCollection Cited Medium: Internet ISSN: 2046-2069 (Electronic) Linking ISSN: 20462069 NLM ISO Abbreviation: RSC Adv Subsets: PubMed not MEDLINE |
| Imprint Name(s): | Original Publication: Cambridge [England] : Royal Society of Chemistry, [2011]- |
| Abstract: | Surface-enhanced Raman spectroscopy (SERS) substrates based on metallic or alloy nanomaterials have attracted increasing attention for trace pesticide detection in food and environmental samples. Endosulfan (ES), a chemically stable and hazardous organochlorine pesticide, remains difficult to be rapidly and sensitively detected at low concentration. In this work, a SERS substrate based on bimetallic AuPt nanoparticles (NPs) was developed via reduction of HAuCl4 and H2PtCl6 precursors. The resulting AuPt nanomaterials were systematically characterized using TEM, HRTEM, XRD, EDS, and UV-vis, and their SERS performance was evaluated using endosulfan as a probe analyte. Among the investigated compositions, AuPt NPs with an Au : Pt molar ratio of 1 : 1 exhibited the best analytical performance, with an enhancement factor (EF) of approximately 14.3 × 106, a limit of detection (LOD) of 0.05 ppm (1.225 × 10-7 M), and a good linear relationship between log I and log C over the concentration range of 0.05-2 ppm. The developed substrate also showed good repeatability, signal uniformity, and storage stability. The enhanced SERS performance is likely associated with the combined effects of alloy composition and favorable nanoparticle morphology, particularly the formation of interparticle nanogaps that promote hotspot generation. Based on the present results, the electromagnetic contribution is considered to be the dominant enhancement mechanism, while electronic interactions between AuPt NPs and ES molecules may provide a supportive contribution. These results suggest that AuPt NPs are a promising SERS-active platform for sensitive endosulfan detection.; (This journal is © The Royal Society of Chemistry.) |
| Competing Interests: | The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. |
| Entry Date(s): | Date Created: 20260413 Date Completed: 20260413 Latest Revision: 20260413 |
| Update Code: | 20260413 |
| PubMed Central ID: | PMC13068308 |
| DOI: | 10.1039/d6ra01752e |
| PMID: | 41969380 |
| Database: | MEDLINE |
Journal Article