Bibliographic Details
| Title: |
Mechanochemical activation of 2D MnPS3 for sub-attomolar sensing |
| Authors: |
Wenjun Chen, Jiabao Gui, Xiangchao Weng, Junyang Tan, Junhua Huang, Zhiqiang Lin, Benli Zhao, Lang-Hong Wang, Xin-An Zeng, Changjiu Teng, Shilong Zhao, Baofu Ding, Bilu Liu, Hui-Ming Cheng |
| Source: |
Nature Communications, Vol 15, Iss 1, Pp 1-9 (2024) |
| Publisher Information: |
Nature Portfolio, 2024. |
| Publication Year: |
2024 |
| Collection: |
LCC:Science |
| Subject Terms: |
Science |
| More Details: |
Abstract Molecular detection is important in biosensing, food safety, and environmental surveillance. The high biocompatibility, superior mechanical stability, and low cost make plasmon-free surface-enhanced Raman scattering (SERS) a promising sensing technique, the ultrahigh sensitivity of which is urgently pursued for realistic applications. As a proof of concept, we report a mechanochemical strategy, which combines the wrinkling and chemical functionalization, to fabricate a plasmon-free SERS platform based on 2D MnPS3 with a sub-attomolar detection limit. In detail, the formation of wrinkles in 2D MnPS3 enables a SERS substrate of the material to detect trace methylene blue molecules. The mechanism is experimentally revealed that the wrinkled structures contribute to the improvement of light-matter coupling. On this basis, decorating a wrinkled MnPS3 which has absorbed methylene blue with histamine dihydrochloride further lowers the detection limit to 10−19 M. Because the amino groups in histamine dihydrochloride molecules are crosslinkers that create more pathways to promote charge transfer between these substances. This work provides a guidance for the design of SERS sensors with single-molecule-level sensitivity. |
| Document Type: |
article |
| File Description: |
electronic resource |
| Language: |
English |
| ISSN: |
2041-1723 |
| Relation: |
https://doaj.org/toc/2041-1723 |
| DOI: |
10.1038/s41467-024-54608-0 |
| Access URL: |
https://doaj.org/article/ab5e0f31257e4ff88c7cd35c74fe4606 |
| Accession Number: |
edsdoj.b5e0f31257e4ff88c7cd35c74fe4606 |
| Database: |
Directory of Open Access Journals |
