| Ferroelectric perovskite-enhanced photoelectrochemical immunoassay with the photoexcited charge-transfer of a built-in electric field | |
| Yu, Zhichao1; Xu, Jianhui1; Li, Yuxuan1; Gong, Hexiang1; Wei, Qiaohua1; Tang, Dianping1,2 | |
| 2021-09 | |
| 发表期刊 | Journal of Materials Chemistry C
 |
| ISSN | 2050-7526 |
| EISSN | 2050-7534 |
| 摘要 | Efficient separation of photo-induced electrons and holes in the photoelectrochemical (PEC) sensors plays an important role in improving detection sensitivity. Based on this point, we report a simple and sensitive photoelectrochemical bioassay for prostate-specific antigen (PSA) detection using lanthanide-doped bismuth ferrite/reduced graphene oxide/tungsten oxide nanohybrids (BLFO/rGO/WO3) as the photo-sensing material. Initially, WO3 was excited under the continuous illumination to generate photo-induced electron-hole pairs. Then, rGO (as a suitable charge transfer medium) could effectively build a bridge between WO3 and BLFO. With the mediation of the built-in electric field in BLFO, the transferred charges were allowed for directional migration in the circuit, thus achieving an effective separation of the photogenerated electron-hole pairs. Coupling with the amplification of enzymatic production (H2O2) and specific recognition of antigen-antibody immunoreaction, target concentration was relative to the corresponding photocurrent, thereby realizing the PSA sensitive detection. Under optimal conditions, the PEC immunoassay exhibited a good linear relationship within a dynamic working range from 0.1 ng mL(-1) to 200 ng mL(-1) with a detection limit of 49.4 pg mL(-1). In addition, this study afforded satisfying specificity, reproducibility, and long-term storage, which also matched well with the commercial PSA ELISA kit. |
| DOI | 10.1039/d1tc03097c |
| 收录类别 | SCIE |
| 语种 | 英语 |
| WOS研究方向 | Materials Science ; Physics |
| WOS类目 | Materials Science, Multidisciplinary ; Physics, Applied |
| WOS记录号 | WOS:000703634600001 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 原始文献类型 | Article ; Early Access |
| 出版地 | CAMBRIDGE |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | https://ir.cqcet.edu.cn/handle/39TD4454/3605 |
| 专题 | 重庆电子科技职业大学 |
| 作者单位 | 1.Fuzhou Univ, Key Lab Analyt Sci Food Safety & Biol MOE & Fujia, Fujian Prov Key Lab Electrochem Energy Storage Ma, Dept Chem,State Key Lab Photocatalysis Energy & E, Fuzhou 350108, Peoples R China; 2.Chongqing Vocat Inst Engn, Chongqing 402260, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yu, Zhichao,Xu, Jianhui,Li, Yuxuan,et al. Ferroelectric perovskite-enhanced photoelectrochemical immunoassay with the photoexcited charge-transfer of a built-in electric field[J]. Journal of Materials Chemistry C,2021. |
| APA | Yu, Zhichao,Xu, Jianhui,Li, Yuxuan,Gong, Hexiang,Wei, Qiaohua,&Tang, Dianping.(2021).Ferroelectric perovskite-enhanced photoelectrochemical immunoassay with the photoexcited charge-transfer of a built-in electric field.Journal of Materials Chemistry C. |
| MLA | Yu, Zhichao,et al."Ferroelectric perovskite-enhanced photoelectrochemical immunoassay with the photoexcited charge-transfer of a built-in electric field".Journal of Materials Chemistry C (2021). |
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| Yu-2021-Ferroelectri（3881KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 下载 | |
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