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核心技术专利：CN118964589B侵权必究
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利用以嫩椰子水为绿色碳源的淀粉基鲁米诺掺杂碳点（N-CDs）在非多孔表面的紫外光下进行高灵敏度指纹检测。

Highly Sensitive Fingerprint Detection under UV Light on Non-Porous Surface Using Starch-Powder Based Luminol-Doped Carbon Dots (N-CDs) from Tender Coconut Water as a Green Carbon Source.

作者信息

Nugroho David, Keawprom Chayanee, Chanthai Saksit, Oh Won-Chun, Benchawattananon Rachadaporn

机构信息

Forensics Division, Department of Integrated Science, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand.

Materials Chemistry Research Center, Department Chemistry and Center of Excellence for Innovation Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand.

出版信息

Nanomaterials (Basel). 2022 Jan 26;12(3):400. doi: 10.3390/nano12030400.

DOI:10.3390/nano12030400
PMID:35159745
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8839162/
Abstract

This study aims to synthesize carbon dots from a natural resource and will be used to detect a latent fingerprint on a non-porous surface. The carbon dots (CDs) were prepared by adding luminol to coconut water and ethanol via a hydrothermal method. Luminol enhances the chemiluminescence of the CDs, which show more distinct blue light under a UV lamp compared with bare CDs. To detect the latent fingerprint, luminol carbon dots (N-CDs) were combined with commercial starch and stirred at room temperature for 24 h. Their characteristics and optical properties were measured using EDX-SEM, HR-TEM, FTIR, XPS, UV-visible absorption, and fluorescence. In this research, it was found that the N-CDs had a d-spacing of 0.5 nm and a size of 12.9 nm. The N-CDs had a fluorescence intensity 551% higher than the standard normally used. N-CDs can be used to detect latent fingerprints on a non-porous surface and are easy to detect under a UV lamp at 395 nm. Therefore, luminol has a high potential to increase sensitive and stable traces of chemiluminescence from the green CDs for forensic latent fingerprint detection.

摘要

本研究旨在从一种自然资源中合成碳点，并将其用于检测无孔表面上的潜在指纹。通过水热法将鲁米诺添加到椰子水和乙醇中来制备碳点（CDs）。鲁米诺增强了碳点的化学发光，与未添加鲁米诺的碳点相比，在紫外灯下其发出的蓝光更为明显。为了检测潜在指纹，将鲁米诺碳点（N-CDs）与商业淀粉混合，并在室温下搅拌24小时。使用能量散射X射线光谱仪-扫描电子显微镜（EDX-SEM）、高分辨率透射电子显微镜（HR-TEM）、傅里叶变换红外光谱仪（FTIR）、X射线光电子能谱仪（XPS）、紫外可见吸收光谱仪和荧光光谱仪对其特性和光学性质进行了测量。在本研究中，发现N-CDs的d间距为0.5纳米，尺寸为12.9纳米。N-CDs的荧光强度比通常使用的标准高出551%。N-CDs可用于检测无孔表面上的潜在指纹，并且在395纳米的紫外灯下易于检测。因此，鲁米诺在增强绿色碳点化学发光的灵敏性和稳定性以用于法医潜在指纹检测方面具有很高的潜力。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bccb/8839162/c0086fce518f/nanomaterials-12-00400-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bccb/8839162/329093aea272/nanomaterials-12-00400-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bccb/8839162/a44651b3089f/nanomaterials-12-00400-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bccb/8839162/f9d01b9ddf1e/nanomaterials-12-00400-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bccb/8839162/e4bb433bd222/nanomaterials-12-00400-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bccb/8839162/6630986ed58b/nanomaterials-12-00400-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bccb/8839162/29283d7a4b5d/nanomaterials-12-00400-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bccb/8839162/225585144409/nanomaterials-12-00400-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bccb/8839162/6be58bc11287/nanomaterials-12-00400-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bccb/8839162/097c226f1bc4/nanomaterials-12-00400-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bccb/8839162/423b670f4afd/nanomaterials-12-00400-g010a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bccb/8839162/02b88b696b4c/nanomaterials-12-00400-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bccb/8839162/c0086fce518f/nanomaterials-12-00400-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bccb/8839162/329093aea272/nanomaterials-12-00400-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bccb/8839162/a44651b3089f/nanomaterials-12-00400-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bccb/8839162/f9d01b9ddf1e/nanomaterials-12-00400-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bccb/8839162/e4bb433bd222/nanomaterials-12-00400-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bccb/8839162/6630986ed58b/nanomaterials-12-00400-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bccb/8839162/29283d7a4b5d/nanomaterials-12-00400-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bccb/8839162/225585144409/nanomaterials-12-00400-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bccb/8839162/6be58bc11287/nanomaterials-12-00400-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bccb/8839162/097c226f1bc4/nanomaterials-12-00400-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bccb/8839162/423b670f4afd/nanomaterials-12-00400-g010a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bccb/8839162/02b88b696b4c/nanomaterials-12-00400-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bccb/8839162/c0086fce518f/nanomaterials-12-00400-g012.jpg

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本文引用的文献

[1]
Intracellular ratiometric temperature sensing using fluorescent carbon dots.

Nanoscale Adv. 2018-12-10

[2]
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ACS Cent Sci. 2020-12-23

[3]
Microwave-Synthesized Polysaccharide-Derived Carbon Dots as Therapeutic Cargoes and Toughening Agents for Elastomeric Gels.

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