BPP-enhanced core–shell structured multilayer hyperbolic metamaterial composite as SERS substrate for ultrasensitive molecular detection
A surface-enhanced Raman scattering (SERS) composite substrate based on the synergy between Au@ZIF-8 nanoparticles (NPs) and multilayer Au/Al 2 O 3 thin films (MLFs) was designed to achieve electromagnetic field enhancement by coupling localized surface plasmon resonance (LSPR) with bulk plasmon pol...
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| Published in | Mikrochimica acta (1966) Vol. 192; no. 7; p. 400 |
|---|---|
| Main Authors | , , , , , |
| Format | Journal Article |
| Language | English |
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Springer Vienna
01.07.2025
Springer Nature B.V |
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| Abstract | A surface-enhanced Raman scattering (SERS) composite substrate based on the synergy between Au@ZIF-8 nanoparticles (NPs) and multilayer Au/Al
2
O
3
thin films (MLFs) was designed to achieve electromagnetic field enhancement by coupling localized surface plasmon resonance (LSPR) with bulk plasmon polariton (BPP). Surface plasmon polaritons (SPPs) in MLFs can couple to form BPP, which significantly enhance the localized electric field intensity within the Au@ZIF-8 (zeolitic imidazolate framework-8) nanogaps. Moreover, the electric field amplification increases progressively with the number of film layers. Within the Au@ZIF-8 core–shell structure, the ZIF-8 serves as a shell to control particle spacing (thereby preventing agglomeration) and concentrate probe molecules within electromagnetic field hotspots. The experimental results demonstrate detection limits of 8.6 × 10
−12
M for rhodamine 6G (R6G) and 1.5 × 10
−9
M for Crystal Violet (CV), representing a significant improvement compared with conventional SERS substrates. This study provides new insights into the synergistic mechanisms of SPP with LSPR, and demonstrates the potential applications of composite Raman substrates in ultrasensitive molecular detection.
Graphical Abstract |
|---|---|
| AbstractList | A surface-enhanced Raman scattering (SERS) composite substrate based on the synergy between Au@ZIF-8 nanoparticles (NPs) and multilayer Au/Al2O3 thin films (MLFs) was designed to achieve electromagnetic field enhancement by coupling localized surface plasmon resonance (LSPR) with bulk plasmon polariton (BPP). Surface plasmon polaritons (SPPs) in MLFs can couple to form BPP, which significantly enhance the localized electric field intensity within the Au@ZIF-8 (zeolitic imidazolate framework-8) nanogaps. Moreover, the electric field amplification increases progressively with the number of film layers. Within the Au@ZIF-8 core-shell structure, the ZIF-8 serves as a shell to control particle spacing (thereby preventing agglomeration) and concentrate probe molecules within electromagnetic field hotspots. The experimental results demonstrate detection limits of 8.6 × 10-12 M for rhodamine 6G (R6G) and 1.5 × 10-9 M for Crystal Violet (CV), representing a significant improvement compared with conventional SERS substrates. This study provides new insights into the synergistic mechanisms of SPP with LSPR, and demonstrates the potential applications of composite Raman substrates in ultrasensitive molecular detection.A surface-enhanced Raman scattering (SERS) composite substrate based on the synergy between Au@ZIF-8 nanoparticles (NPs) and multilayer Au/Al2O3 thin films (MLFs) was designed to achieve electromagnetic field enhancement by coupling localized surface plasmon resonance (LSPR) with bulk plasmon polariton (BPP). Surface plasmon polaritons (SPPs) in MLFs can couple to form BPP, which significantly enhance the localized electric field intensity within the Au@ZIF-8 (zeolitic imidazolate framework-8) nanogaps. Moreover, the electric field amplification increases progressively with the number of film layers. Within the Au@ZIF-8 core-shell structure, the ZIF-8 serves as a shell to control particle spacing (thereby preventing agglomeration) and concentrate probe molecules within electromagnetic field hotspots. The experimental results demonstrate detection limits of 8.6 × 10-12 M for rhodamine 6G (R6G) and 1.5 × 10-9 M for Crystal Violet (CV), representing a significant improvement compared with conventional SERS substrates. This study provides new insights into the synergistic mechanisms of SPP with LSPR, and demonstrates the potential applications of composite Raman substrates in ultrasensitive molecular detection. A surface-enhanced Raman scattering (SERS) composite substrate based on the synergy between Au@ZIF-8 nanoparticles (NPs) and multilayer Au/Al 2 O 3 thin films (MLFs) was designed to achieve electromagnetic field enhancement by coupling localized surface plasmon resonance (LSPR) with bulk plasmon polariton (BPP). Surface plasmon polaritons (SPPs) in MLFs can couple to form BPP, which significantly enhance the localized electric field intensity within the Au@ZIF-8 (zeolitic imidazolate framework-8) nanogaps. Moreover, the electric field amplification increases progressively with the number of film layers. Within the Au@ZIF-8 core–shell structure, the ZIF-8 serves as a shell to control particle spacing (thereby preventing agglomeration) and concentrate probe molecules within electromagnetic field hotspots. The experimental results demonstrate detection limits of 8.6 × 10 −12 M for rhodamine 6G (R6G) and 1.5 × 10 −9 M for Crystal Violet (CV), representing a significant improvement compared with conventional SERS substrates. This study provides new insights into the synergistic mechanisms of SPP with LSPR, and demonstrates the potential applications of composite Raman substrates in ultrasensitive molecular detection. Graphical Abstract A surface-enhanced Raman scattering (SERS) composite substrate based on the synergy between Au@ZIF-8 nanoparticles (NPs) and multilayer Au/Al O thin films (MLFs) was designed to achieve electromagnetic field enhancement by coupling localized surface plasmon resonance (LSPR) with bulk plasmon polariton (BPP). Surface plasmon polaritons (SPPs) in MLFs can couple to form BPP, which significantly enhance the localized electric field intensity within the Au@ZIF-8 (zeolitic imidazolate framework-8) nanogaps. Moreover, the electric field amplification increases progressively with the number of film layers. Within the Au@ZIF-8 core-shell structure, the ZIF-8 serves as a shell to control particle spacing (thereby preventing agglomeration) and concentrate probe molecules within electromagnetic field hotspots. The experimental results demonstrate detection limits of 8.6 × 10 M for rhodamine 6G (R6G) and 1.5 × 10 M for Crystal Violet (CV), representing a significant improvement compared with conventional SERS substrates. This study provides new insights into the synergistic mechanisms of SPP with LSPR, and demonstrates the potential applications of composite Raman substrates in ultrasensitive molecular detection. A surface-enhanced Raman scattering (SERS) composite substrate based on the synergy between Au@ZIF-8 nanoparticles (NPs) and multilayer Au/Al2O3 thin films (MLFs) was designed to achieve electromagnetic field enhancement by coupling localized surface plasmon resonance (LSPR) with bulk plasmon polariton (BPP). Surface plasmon polaritons (SPPs) in MLFs can couple to form BPP, which significantly enhance the localized electric field intensity within the Au@ZIF-8 (zeolitic imidazolate framework-8) nanogaps. Moreover, the electric field amplification increases progressively with the number of film layers. Within the Au@ZIF-8 core–shell structure, the ZIF-8 serves as a shell to control particle spacing (thereby preventing agglomeration) and concentrate probe molecules within electromagnetic field hotspots. The experimental results demonstrate detection limits of 8.6 × 10−12 M for rhodamine 6G (R6G) and 1.5 × 10−9 M for Crystal Violet (CV), representing a significant improvement compared with conventional SERS substrates. This study provides new insights into the synergistic mechanisms of SPP with LSPR, and demonstrates the potential applications of composite Raman substrates in ultrasensitive molecular detection. |
| ArticleNumber | 400 |
| Author | Shan, Xiaomu Wei, Zhuofan Xu, Yuanze Jiang, Shouzhen Wang, Sen Shi, Jian |
| Author_xml | – sequence: 1 givenname: Zhuofan surname: Wei fullname: Wei, Zhuofan organization: Collaborative Innovation Center of Light Manipulations and Applicationsin, School of Physics and Electronics , Universities of Shandong, Shandong Normal University – sequence: 2 givenname: Xiaomu surname: Shan fullname: Shan, Xiaomu organization: Collaborative Innovation Center of Light Manipulations and Applicationsin, School of Physics and Electronics , Universities of Shandong, Shandong Normal University – sequence: 3 givenname: Jian surname: Shi fullname: Shi, Jian organization: Collaborative Innovation Center of Light Manipulations and Applicationsin, School of Physics and Electronics , Universities of Shandong, Shandong Normal University – sequence: 4 givenname: Yuanze surname: Xu fullname: Xu, Yuanze organization: Collaborative Innovation Center of Light Manipulations and Applicationsin, School of Physics and Electronics , Universities of Shandong, Shandong Normal University – sequence: 5 givenname: Sen surname: Wang fullname: Wang, Sen email: 1990501855@qq.com organization: Shandong Normal University – sequence: 6 givenname: Shouzhen surname: Jiang fullname: Jiang, Shouzhen email: jiang_sz@126.com organization: Collaborative Innovation Center of Light Manipulations and Applicationsin, School of Physics and Electronics , Universities of Shandong, Shandong Normal University, Shandong Key Laboratory of Medical Physics, Image Processing & Shandong Provincial Engineering and Technical Center of Light Manipulations |
| BackLink | https://www.ncbi.nlm.nih.gov/pubmed/40461809$$D View this record in MEDLINE/PubMed |
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| Keywords | LSPR Ultrasensitive molecular detection BPP Au@ZIF-8 SERS |
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| Snippet | A surface-enhanced Raman scattering (SERS) composite substrate based on the synergy between Au@ZIF-8 nanoparticles (NPs) and multilayer Au/Al
2
O
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thin films... A surface-enhanced Raman scattering (SERS) composite substrate based on the synergy between Au@ZIF-8 nanoparticles (NPs) and multilayer Au/Al O thin films... A surface-enhanced Raman scattering (SERS) composite substrate based on the synergy between Au@ZIF-8 nanoparticles (NPs) and multilayer Au/Al2O3 thin films... |
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| SubjectTerms | Aluminum oxide Analytical Chemistry Characterization and Evaluation of Materials Chemistry Chemistry and Materials Science Core-shell structure Electric fields Electromagnetic fields Electromagnetism Gold Metal-organic frameworks Metamaterials Microengineering Multilayers Nanochemistry Nanoparticles Nanotechnology Polaritons Raman spectra Rhodamine 6G Substrates Surface plasmon resonance Thin films Zeolites |
| Title | BPP-enhanced core–shell structured multilayer hyperbolic metamaterial composite as SERS substrate for ultrasensitive molecular detection |
| URI | https://link.springer.com/article/10.1007/s00604-025-07268-w https://www.ncbi.nlm.nih.gov/pubmed/40461809 https://www.proquest.com/docview/3215548792 https://www.proquest.com/docview/3215573277 |
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