Quantifying contrast of latent fingerprints developed by fluorescent nanomaterials based on spectral analysis
文献类型：期刊论文
| 作者 | Wang, Meng; Shen, Dunpu; Zhu, Zhongxu; Li, Ming; Yuan, Chuanjun; Zhu, Ye; Wu, Jian; Mao, Chuanbin |
| 刊名 | TALANTA
 |
| 出版日期 | 2021 |
| 卷号 | 231 |
| 关键词 | ENHANCED DEVELOPMENT RECENT PROGRESS QUANTIFICATION NANOCOMPOSITES NANOPARTICLES FINGERMARKS LIGHT |
| 英文摘要 | Fluorescent nanoparticles (NPs) have been used to develop latent fingerprints with enhanced contrast. However, a method for quantifying the contrast is still lacking, making it impossible to achieve quantitative comparison in the contrast enhancement between different fingerprint developing agents. Here we proposed a new method to quantify the developed contrast using two indexes when fluorescent NPs were used to develop the latent fingerprint. One is the intensity index (I) defined as the ratio between the integrated fluorescence intensities of the signal and background in the fluorescence spectra of the developed fingerprint. Another is the chroma index (C) determined from the color difference between developed fingerprints and their substrates in the chromaticity graph. We defined the developed contrast as the product of the chroma index and the common logarithm of the intensity index (C.lg I), and validated this method using both down- and up-conversion fluorescent NPs and on a variety of different substrates (glass, marble, red paper and money). We showed that the developed contrast quantified by our method effectively reflected the true contrast but the intensity or chroma index alone was not always effective. This work opens up a new avenue to quantifying and enhancing the developed contrast. |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/21655]  |
| 专题 | 中国科学院宁波材料技术与工程研究所 2021专题_期刊论文 |
| 作者单位 | 1.Wang, M (corresponding author), Natl Police Univ China, Dept Trace Examinat, Shenyang 110035, Liaoning, Peoples R China. 2.Wu, J (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Key Lab Magnet Mat & Devices, Ningbo 315201, Zhejiang, Peoples R China. 3.Mao, CB (corresponding author), Univ Oklahoma, Stephenson Life Sci Res Ctr, Dept Chem & Biochem, Norman, OK 73019 USA. |
| 推荐引用方式 GB/T 7714 | Wang, Meng,Shen, Dunpu,Zhu, Zhongxu,et al. Quantifying contrast of latent fingerprints developed by fluorescent nanomaterials based on spectral analysis[J]. TALANTA,2021,231. |
| APA | Wang, Meng.,Shen, Dunpu.,Zhu, Zhongxu.,Li, Ming.,Yuan, Chuanjun.,...&Mao, Chuanbin.(2021).Quantifying contrast of latent fingerprints developed by fluorescent nanomaterials based on spectral analysis.TALANTA,231. |
| MLA | Wang, Meng,et al."Quantifying contrast of latent fingerprints developed by fluorescent nanomaterials based on spectral analysis".TALANTA 231(2021). |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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