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用于潜在指纹检测的具有疏水性的红色发光固态碳点/聚乙烯吡咯烷酮

Red Emitting Solid-State CDs/PVP with Hydrophobicity for Latent Fingerprint Detection.

作者信息

Zhang Zhihong, Han Zhaoxia, Ding Shuhui, Jing Yujing, Wei Zhenjie, Zhang Dawei, Hong Ruijin, Tao Chunxian

机构信息

Shanghai Key Lab of Modern Optical System, University of Shanghai for Science and Technology, Shanghai 200093, China.

Engineering Research Center of Optical Instrument and System, Ministry of Education, Shanghai 200093, China.

出版信息

Materials (Basel). 2024 Apr 21;17(8):1917. doi: 10.3390/ma17081917.

DOI:10.3390/ma17081917
PMID:38673274
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11052104/
Abstract

Fluorescent carbon dots (CDs) are a new type of photoluminescent nanomaterial. Solid-state CDs usually undergo fluorescence quenching due to direct π-π* interactions and superabundant energy resonance transfer. Therefore, the preparation of solid-state fluorescent CDs is a challenge, especially the preparation of long wavelength solid-state CDs. In this research, long wavelength emission CDs were successfully synthesized by solvothermal methods, and the prepared CDs showed good hydrophobicity. The composite solid-state CDs/PVP (Polyvinyl pyrrolidone) can emit strong red fluorescence, and the quantum yield (QY) of the CDs/PVP powder reaches 18.9%. The prepared CDs/PVP solid-state powder was successfully applied to latent fingerprint detection. The results indicate that the latent fingerprints developed by CDs/PVP powder have a fine definition and high contrast visualization effect, which proves that the prepared CDs/PVP has great application potential in latent fingerprint detection. This study may provide inspiration and ideas for the design of new hydrophobic CDs.

摘要

荧光碳点（CDs）是一种新型的光致发光纳米材料。固态CDs通常会由于直接的π-π*相互作用和过剩的能量共振转移而发生荧光猝灭。因此，制备固态荧光CDs是一项挑战，尤其是长波长固态CDs的制备。在本研究中，通过溶剂热法成功合成了长波长发射的CDs，且所制备的CDs表现出良好的疏水性。复合固态CDs/PVP（聚乙烯吡咯烷酮）能发出强烈的红色荧光，CDs/PVP粉末的量子产率（QY）达到18.9%。所制备的CDs/PVP固态粉末成功应用于潜在指纹检测。结果表明，用CDs/PVP粉末显影的潜在指纹具有清晰的清晰度和高对比度的可视化效果，这证明所制备的CDs/PVP在潜在指纹检测中具有巨大的应用潜力。本研究可能为新型疏水性CDs的设计提供灵感和思路。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/965e/11052104/983a2b34a661/materials-17-01917-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/965e/11052104/7f083b019979/materials-17-01917-g001.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/965e/11052104/dbc0477155ee/materials-17-01917-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/965e/11052104/0869de8a1395/materials-17-01917-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/965e/11052104/093341d731af/materials-17-01917-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/965e/11052104/80516d699e2b/materials-17-01917-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/965e/11052104/d9320c6070b6/materials-17-01917-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/965e/11052104/c0fbe1b032fc/materials-17-01917-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/965e/11052104/54e41286a6c5/materials-17-01917-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/965e/11052104/983a2b34a661/materials-17-01917-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/965e/11052104/7f083b019979/materials-17-01917-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/965e/11052104/3274d787d9b5/materials-17-01917-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/965e/11052104/e18a9222f2b4/materials-17-01917-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/965e/11052104/2a954076e8a0/materials-17-01917-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/965e/11052104/dbc0477155ee/materials-17-01917-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/965e/11052104/0869de8a1395/materials-17-01917-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/965e/11052104/093341d731af/materials-17-01917-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/965e/11052104/80516d699e2b/materials-17-01917-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/965e/11052104/d9320c6070b6/materials-17-01917-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/965e/11052104/c0fbe1b032fc/materials-17-01917-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/965e/11052104/54e41286a6c5/materials-17-01917-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/965e/11052104/983a2b34a661/materials-17-01917-g012.jpg

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