Reproducible and acid‐responsive Rhodamine B/PEG functioned nanographene oxide‐Au nanocomposites for surface‐enhanced Raman scattering sensing
Abstract Surface‐enhanced Raman scattering (SERS) has been visualized as a promising analytical technique in marked‐molecule detection for disease diagnosis, environmental pollution, and so on. Noble metal nanoparticles, especially gold nanoparticles (AuNPs), are commonly used to fabricate SERS subs...
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Wiley
2024-12-01
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| Online Access: | https://doi.org/10.1002/smm2.1305 |
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| author | Wenhao Qian Min Xing Mao Ye Xiaoyu Huang Yongjun Li Bingjie Hao |
| author_facet | Wenhao Qian Min Xing Mao Ye Xiaoyu Huang Yongjun Li Bingjie Hao |
| author_sort | Wenhao Qian |
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| description | Abstract Surface‐enhanced Raman scattering (SERS) has been visualized as a promising analytical technique in marked‐molecule detection for disease diagnosis, environmental pollution, and so on. Noble metal nanoparticles, especially gold nanoparticles (AuNPs), are commonly used to fabricate SERS substrates. Herein, we facilely fabricated a special platform to improve the dispersity and homogeneity of AuNPs. Practically, based on nano‐graphene oxide (GO), a special platform (s‐GO‐PEG‐R'hB) was prepared through GO functionalization with biocompatible poly(ethylene glycol) (PEG), acid‐activated fluorescence molecule (Rhodamine B lactam derivative, R'hB) and thiol sites with cysteamine. AuNPs were then in situ grown on s‐GO‐PEG‐R'hB sheets to provide GO/AuNPs nanocomposite (Au@s‐GO‐PEG‐R'hB) for use as an efficient SERS substrate, which can exert unique electromagnetic characteristics of AuNPs and improve its dispersity. With systematic morphology and composition characterizations, it was confirmed that uniform AuNPs were located on multi‐functionalized GO sheets in Au@s‐GO‐PEG‐R'hB as we designed. Au@s‐GO‐PEG‐R'hB performed well in SERS detection towards 4‐aminothiophenol (4‐ATP) and p‐phenylenediamine (PD), with preferable sensibility, stability and effectiveness. With well‐knit SERS results, it is indicated that Au@s‐GO‐PEG‐R'hB could take the advantages of inherent electrochemical properties of AuNPs and functionalized GO to be a potential substrate in SERS detection. Thus, it is foreseen that Au@s‐GO‐PEG‐R'hB can meet diverse SERS sensing demands in real life. |
| format | Article |
| id | doaj-art-55aa73c9d4424051a66cd6d3afca0971 |
| institution | Kabale University |
| issn | 2688-819X |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Wiley |
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| series | SmartMat |
| spelling | doaj-art-55aa73c9d4424051a66cd6d3afca09712024-12-18T13:25:15ZengWileySmartMat2688-819X2024-12-0156n/an/a10.1002/smm2.1305Reproducible and acid‐responsive Rhodamine B/PEG functioned nanographene oxide‐Au nanocomposites for surface‐enhanced Raman scattering sensingWenhao Qian0Min Xing1Mao Ye2Xiaoyu Huang3Yongjun Li4Bingjie Hao5Department of Stomatology Shanghai Xuhui District Dental Center Shanghai ChinaDepartment of Stomatology Shanghai Xuhui District Dental Center Shanghai ChinaDepartment of Stomatology Shanghai Xuhui District Dental Center Shanghai ChinaKey Laboratory of Fluorine and Nitrogen Chemistry and Advanced Materials Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences Shanghai ChinaKey Laboratory of Fluorine and Nitrogen Chemistry and Advanced Materials Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences Shanghai ChinaKey Laboratory of Fluorine and Nitrogen Chemistry and Advanced Materials Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences Shanghai ChinaAbstract Surface‐enhanced Raman scattering (SERS) has been visualized as a promising analytical technique in marked‐molecule detection for disease diagnosis, environmental pollution, and so on. Noble metal nanoparticles, especially gold nanoparticles (AuNPs), are commonly used to fabricate SERS substrates. Herein, we facilely fabricated a special platform to improve the dispersity and homogeneity of AuNPs. Practically, based on nano‐graphene oxide (GO), a special platform (s‐GO‐PEG‐R'hB) was prepared through GO functionalization with biocompatible poly(ethylene glycol) (PEG), acid‐activated fluorescence molecule (Rhodamine B lactam derivative, R'hB) and thiol sites with cysteamine. AuNPs were then in situ grown on s‐GO‐PEG‐R'hB sheets to provide GO/AuNPs nanocomposite (Au@s‐GO‐PEG‐R'hB) for use as an efficient SERS substrate, which can exert unique electromagnetic characteristics of AuNPs and improve its dispersity. With systematic morphology and composition characterizations, it was confirmed that uniform AuNPs were located on multi‐functionalized GO sheets in Au@s‐GO‐PEG‐R'hB as we designed. Au@s‐GO‐PEG‐R'hB performed well in SERS detection towards 4‐aminothiophenol (4‐ATP) and p‐phenylenediamine (PD), with preferable sensibility, stability and effectiveness. With well‐knit SERS results, it is indicated that Au@s‐GO‐PEG‐R'hB could take the advantages of inherent electrochemical properties of AuNPs and functionalized GO to be a potential substrate in SERS detection. Thus, it is foreseen that Au@s‐GO‐PEG‐R'hB can meet diverse SERS sensing demands in real life.https://doi.org/10.1002/smm2.1305gold nanoparticles (AuNPs)graphene oxide (GO)rhodamine derivativesurface‐enhanced Raman scattering (SERS) |
| spellingShingle | Wenhao Qian Min Xing Mao Ye Xiaoyu Huang Yongjun Li Bingjie Hao Reproducible and acid‐responsive Rhodamine B/PEG functioned nanographene oxide‐Au nanocomposites for surface‐enhanced Raman scattering sensing SmartMat gold nanoparticles (AuNPs) graphene oxide (GO) rhodamine derivative surface‐enhanced Raman scattering (SERS) |
| title | Reproducible and acid‐responsive Rhodamine B/PEG functioned nanographene oxide‐Au nanocomposites for surface‐enhanced Raman scattering sensing |
| title_full | Reproducible and acid‐responsive Rhodamine B/PEG functioned nanographene oxide‐Au nanocomposites for surface‐enhanced Raman scattering sensing |
| title_fullStr | Reproducible and acid‐responsive Rhodamine B/PEG functioned nanographene oxide‐Au nanocomposites for surface‐enhanced Raman scattering sensing |
| title_full_unstemmed | Reproducible and acid‐responsive Rhodamine B/PEG functioned nanographene oxide‐Au nanocomposites for surface‐enhanced Raman scattering sensing |
| title_short | Reproducible and acid‐responsive Rhodamine B/PEG functioned nanographene oxide‐Au nanocomposites for surface‐enhanced Raman scattering sensing |
| title_sort | reproducible and acid responsive rhodamine b peg functioned nanographene oxide au nanocomposites for surface enhanced raman scattering sensing |
| topic | gold nanoparticles (AuNPs) graphene oxide (GO) rhodamine derivative surface‐enhanced Raman scattering (SERS) |
| url | https://doi.org/10.1002/smm2.1305 |
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