Application of PAMAM Dendrimers for Detecting Latent Fingerprints on Adhesive Tapes

doi:10.7517/j.issn.1674-0475.2012.03.228

Abstract

Abstract: Photoluminescent PAMAM dendrimer was studied as a fluorescent marker for developing latent fingerprint deposited on adhesive tapes in the conditions of different pH values and excitation wavelengths. The results show: When the pH value of PAMAM dendrimers solution was more than 7, the impactful composition of fingerprints can be eroded and the detecting effect decreases; treated fingerprints emitted strong visible blue fluorescence with clear lines and characters and the detecting effect was good when the pH value was within the range of 4—7. The blue fluorescent emission of PAMAM was easily disturbed by the blue visible light emitted from impurities in adhesive tapes in the irradiation of 365 nm UV light, thus the contrast between fingerprint residue and background was only 28.8%; it could be enhanced to about 90% by changing the UV exciting light into visible narrow-band light or nature white light because of the elimination of effect of impurities in adhesive tapes, which could also reduce the harm of UV light to people. PAMAM was an environmental-friendly, effective reagent for latent fingerprints on sticky side of adhesive tapes.

Key words: Poly (amido amine)(PAMAM), dendrimers, photoluminescence, oily-latent fingerprints, adhesive tapes, forensic science

CLC Number:

JIN Yu-juan, LUO Yun-jun, LI Guo-ping, ZHANG Wan-lu. Application of PAMAM Dendrimers for Detecting Latent Fingerprints on Adhesive Tapes[J]. Imaging Science and Photochemistry, 2012, 30(3): 228-236.

References

[1] Jones B J, Reynolds A J, Richardson M, et al. Nano-scale composition of commercial white powders for development of latent fingerprints on adhesives[J]. Sci. Just., 2010, 50(3): 150-155.
[2] 沈良福, 吴园, 张晨旭. 弱酸性碳素墨水显现胶带粘面指纹的探讨[J]. 刑事技术, 2010, 4: 47-48. Shen L F, Wu Y, Zhang C X. Studies on development of latent fingerprint on adhesive side of tape using week acidic carbon ink[J]. Forensic Sci. and Tech., 2010, 4: 47-48.
[3] 赵科, 杨瑞琴. 纳米TiO₂小颗粒悬浮液显现胶带粘面油潜手印初探[J]. 中国人民公安大学学报, 2008, 3: 10-13. Zhao K, Yang R Q. Studies on development of latent fingerprint on adhesive side of tape using TiO₂ nano-powder[J]. J. Chinese People's Public Security University (Sci. and Tech.), 2008, 3: 10-13.
[4] 赵列昌. 浅议胶带纸粘面指纹的显现[J]. 河南公安高等专科学校学报, 2008, 3: 131-132. Zhao L C. Development of latent fingerprint on adhesive side of tape[J]. J. Henan Pub Security Academy, 2008, 3: 131-132.
[5] 林景, 王桂强, 罗启龙. 短波紫外反射照相法显现胶带粘面潜在指印[J]. 刑事技术, 2002, 5: 3-6. Lin J, Wang G Q, Luo Q L. Development of latent fingerprint on adhesive side of tape by UV reflection photography[J]. Forensic Sci. and Tech., 2002, 5: 3-6.
[6] Menzel E R, Pretreatment of latent prints for laser development[J]. Forensic Sci. Rev., 1989,1(1): 43-66.
[7] 罗运军, 李国平, 靳玉娟, 等. 一种快速潜指纹显现试剂的制备方法. 中国专利, 101308061. 2008-7-9. Luo Y J, Li G P, Jin Y J, et al. Rapid latent fingerprint presentation reagent preparation method. China patent, 101308061. 2008-7-9.
[8] 靳玉娟, 罗运军, 许国志, 等. CdS/PAMAM树形分子纳米复合材料的荧光性能研究[J]. 光谱学与光谱分析, 2011, 31(12): 3311-3314. JIN Y J, Luo Y J, Xu G Z, et al. Study of photoluminescence property of CdS/PAMAM nanocomposites[J]. J. Spec. and Spec. Ana., 2011, 31(12): 3311-3314.
[9] JIN Y J, Luo Y J, Xu G Z, et al. Aged fingermarks detection with CdS/PAMAM nanocomposites[J]. Adv. Mater. Research, 2011, 282-283: 466-469.
[10] Wang Y F, Yang R Q, Wang Y J, et al. Application of CdSe nanoparticle suspension for developing latent fingermarks on the sticky side of adhesives[J]. Forensic Sci. Int., 2009, 185(1-3):96-99.
[11] 王元凤, 王彦吉, 杨瑞琴, 等. CdS/PAMAM与氨基酸作用研究及其在潜在指印显现中的应用[J]. 光谱学与光谱分析, 2008, 28(12): 2843-2846. Wang Y F, Wang Y J, Yang R Q, et al. Study on amidation reaction between CdS/ PAMAM and amino acid and its application to latent fingerprint development[J]. J. Spec. and Spec. Ana., 2008, 28(12): 2843-2846.
[12] 杨瑞琴, 周庆颖, 王元凤, 等. 纳米CdS/PAMAM G5.0显现胶带粘面油潜指纹应用[J]. 无机化学学报, 2008, 24(11):1874-1879. Yang R Q, Zhou Q Y, Wang Y F, et al. Nano meter CdS/PAMAM G5.0 for developing oil latent fingerprints on adhesive side of common tapes[J]. Chin. J. Inorg. Chem., 2008, 24(11): 1874-1879.
[13] 石志霞, 王元凤, 刘建军, 等. 水溶性荧光CdSe量子点的合成及其在指纹显现中的应用[J]. 无机化学学报, 2008, 24(7):1186-1190. Shi Z X, Wang Y F, Liu J J, et al. Water-soluble fluorescent CdSe quantum dots synthesis and application for fingerprint developing[J]. Chinese J. of Inorg. Chem., 2008, 24(7):1186- 1190.
[14] JIN Y J, Luo Y J, Li G P, et al. Application of photoluminescent CdS/PAMAM nanocomposite in fingerprint detection[J]. Forensic Sci. Int., 2008, 179(1): 34-38.
[15] JIN Y J, Luo Y J, Xu G Z, et al. Effects of metallic ions on photoluminescence properties of CdSe/PAMAM nanocomposites and their application in fingerprint detection[J]. Adv. Mater. Research, 2011, 295-297: 900-906.
[16] Liu J J, Shi Z X, Yu Y C, et al. Water-soluble multicolored fluorescent CdTe quantum dots: synthesis and application for fingerprint developing[J]. J. Colloid and Interface Science, 2010, 342: 278-282.
[17] 靳玉娟, 罗运军, 李国平, 等.聚酰胺-胺树形分子荧光性能研究及其在指纹显现领域应用初探[J]. 影像科学与光化学, 2010, 28(2):111-120. Jin Y J, Luo Y J, Li G P, et al, Inherent photoluminescence properties of PAMAM dendrimers and application in fingerprint detection[J]. Imaging Science and Photochemistry, 2010, 28(2):111-120.
[18] 靳玉娟, 罗运军, 李国平, 等. 荧光性聚酰胺-胺树形分子在潜指纹显现中的应用研究[J]. 影像科学与光化学, 2011, 29(3):194-202. Jin Y J, Luo Y J, Li G P, et al. Application of photoluminescent PAMAM dendrimers in fingerprint detection[J]. Imaging Science and Photochemistry, 2011, 29(3):194-202.
[19] Tomalia D A, Baker H, Dewald J, et al. A new class polymers: starburst-dendritic macromolecules[J]. Polym. J., 1985, 17(1): 117-132.
[20] Dikshitulu Y S, Prasad L, Pal J N, et al. Aging studies on fingerprint residues using thin-layer and high performance liquid chromatography[J]. Forensic Sci. Int., 1986, 31: 261-266.