Application of core–shell-structured CdTe@SiO2 quantum dots synthesized via a facile solution method for improving latent fingerprint detection
Source abstract
Abstract
Fingerprint detection is important in criminal investigation. This paper reports a facile powder brushing technique for improving latent fingerprint detection using core–shell-structured CdTe@SiO2 quantum dots (QDs) as fluorescent labeling marks. Core–shell-structured CdTe@SiO2 QDs are prepared via a simple solution-based approach using NH2NH2·H2O as pH adjustor and stabilizer, and their application for improving latent fingerprint detection is explored. The obtained CdTe@SiO2 QDs show spherical shapes with well-defined core–shell structures encapsulating different amounts of QDs depending on the type of the pH adjustor and stabilizer. Moreover, the fluorescence of CdTe@SiO2 QDs is largely enhanced by surface modification of the SiO2 shell. The CdTe@SiO2 QDs overcome the oxidation problem of pure CdTe QDs in air, thus affording better variability with strong adhesive ability, better resolution, and bright emission colors for practical application in latent fingerprint detection. In comparison with the conventional fluorescence powders, silver powders, and others, the effectiveness of CdTe@SiO2 QD powders for detection of latent fingerprints present on a large variety of object surfaces is greatly improved. The synthesis method for CdTe@SiO2 QDs is simple, cheap, and easy for large-scale production, and thus offers many advantages in the practical application of fingerprint detection.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Forensic Fingerprint Detection Methods · Biometric Identification and Security
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (32)
Show source-provided references
1. Bécue A, Moret S, Champod C, Margot P (2009) Use of quantum dots in aqueous solution to detect blood fingermarks on non-porous surfaces. Forensic Sci Int 191:36–4110.1016/j.forsciint.2009.06.005 ↗
2. Bouldin KK, Menzel ER, Takatsu M, Murdock RH (2000) Diimide-enhanced fingerprint detection with photoluminescent CdS/dendrimer nanocomposites. J Forensic Sci 45:123910.1520/JFS14872J ↗
3. Chen Y (1988) Technology of infrared-photoacoustic and Roman-photoacoustic spectroscopy. Weave Industry Press, Beijing
4. Cheng KH, Ajimoi J, Wei C (2008) Exploration of functionalized CdTe nanoparticles for latent fingerprint detection. J Nanosci Nanotechnol 8:1170–117310.1166/jnn.2008.18166 ↗
5. Darbandi M, Thomann R, Nann T (2005) Single quantum dots in silica spheres by microemulsion synthesis. Chem Mater 17:5720–572510.1021/cm051467h ↗
6. Darbandi M, Urban G, Krüger M (2010) A facile synthesis method to silica coated CdSe/ZnS nanocomposites with tunable size and optical properties. J Colloid Interface Sci 351:30–3410.1016/j.jcis.2010.07.043 ↗
7. de Dood MJA, Berkhout B, van Kats CM, Polman A, van Blaaderen A (2002) Acid-based synthesis of monodisperse rare-earth-doped colloidal SiO2 spheres. Chem Mater 14:2849–285310.1021/cm0211599 ↗
8. Ethiraj AS, Hebalkar N, Kulkarni SK, Pasricha R, Urban J, Dem C, Schmitt M, Kiefer W, Weinhardt L, Joshi S, Fink R, Heske C, Kumpf C, Umbach E (2003) Enhancement of photoluminescence in manganese-doped ZnS nanoparticles due to a silica shell. J Chem Phys 118:8945–895310.1063/1.1566932 ↗
9. Fonseca MG, Oliveira ASC (2001) Silylating agents grafted onto silica derived from leached chrysotile. J Colloid Interface Sci 240:533–53810.1006/jcis.2001.7663 ↗
10. Gao F, Han J, Zhang J, Li Q, Sun X, Zheng J, Bao L, Li X, Liu Z (2011a) The synthesis of newly modified CdTe quantum dots and their application for improvement of latent fingerprint detection. Nanotechnology 22:07570510.1088/0957-4484/22/7/075705 ↗
11. Gao F, Lv C, Han J, Li X, Wang Q, Zhang J, Chen C, Li Q, Sun X, Zheng J, Bao L, Li X (2011b) CdTe–montmorillonite nanocomposites: control synthesis, UV radiation-dependent photoluminescence, and enhanced latent fingerprint detection. J Phys Chem C 115:21574–2158310.1021/jp205021j ↗
12. Gu HW, Zheng RK, Zhang XX, Xu B (2004) Facile one-pot synthesis of bifunctional heterodimers of nanoparticles: a conjugate of quantum dot and magnetic nanoparticles. J Am Chem Soc 126:566410.1021/ja0496423 ↗
13. Jin L, Yu DD, Liu Y, Zhao XL, Zhou JG (2008) The application of CdTe@SiO2 particles in immunoassay. Talanta 76:1053–105710.1016/j.talanta.2008.05.002 ↗
14. Jing X, Chen S, Me E (1992) Applied directory of infrared-photoacoustic spectroscopy. Tianjin Science and Technology Press, Tianjin
15. Lal M, Levy L, Kim KS, He GS, Wang X, Min YH, Pakatchi S, Prasad PN (2000) Silica nanobubbles containing an organic dye in a multilayered organic/inorganic heterostructure with enhanced luminescence. Chem Mater 12:2632–263910.1021/cm000178k ↗
16. Menzel ER (2001) Advances in fingermark technology. CRC Press, Boca Raton
17. Menzel ER, Savoy SM, Ulvick SJ, Cheng KH, Murdock RH, Sudduth MR (2000a) Photoluminescent semiconductor nanocrystals for fingerprint detection. J Forensic Sci 45:451–54510.1520/JFS14769J ↗
18. Menzel ER, Takatsu M, Murdock RH, Bouldin K, Cheng KH (2000b) Photoluminescent CdS/dendrimer nanocomposites for fingerprint detection. J Forensic Sci 45:770–77310.1520/JFS14769J ↗
19. Nann T, Mulvaney P (2004) Single quantum dots in silica spherical particles. Angew Chem Int Ed 43:5393–539610.1002/anie.200460752 ↗
20. Nypuist RA, Kagel RO (1971) Infrared spectra of inorganic compounds. Academic Press, New York, pp 389–390
21. Ow H, Larson DR, Srivastava M, Baird BA, Webb WW, Wiesner U (2005) Bright and stable core- shell fluorescent silica nanoparticles. Nano Lett 5:113–11710.1021/nl0482478 ↗
22. Qian J, Zhang C, Cao X, Liu S (2010) Versatile immunosensor using a quantum dot coated silica nanosphere as a label for signal amplification. Anal Chem 82:6422–642910.1021/ac100558t ↗
23. Salgueirino-Maceira V, Correa-Duarte MA, Spasova M, Liz-Marzán LM, Farle M (2006) Composite silica spheres with magnetic and luminescent functionalities. Adv Funct Mater 16:509–51410.1002/adfm.200500565 ↗
24. Schroedter A, Weller H (2002) Biofunctionalization of silica-coated CdTe and gold nanocrystals. Nano Lett 2:1363–136710.1021/nl025779k ↗
25. Singh S, Nalwa HS (2007) Nanotechnology and health Safety-toxicity and risk assessment of nanostructured materials on human health. J Nanosci Nanotechnol 7:3048–307010.1166/jnn.2007.922 ↗
26. Sodhi GS, Kaur JK (2001) Powder method for detecting latent fingerprint: a review. Forensic Sci Int 120:172–17610.1016/S0379-0738(00)00465-5 ↗
27. Wang Y, Lu J, Huang X, Long J, Tong Z (2008) One step synthesis of silica-coated nanoparticles at room temperature and their luminescence properties. Mater Lett 62:3413–341510.1016/j.matlet.2008.03.017 ↗
28. Wang YF, Yang RQ, Wang YJ, Shi ZX, Liu JJ (2009) Application of CdSe nanoparticle suspension for developing latent fingermarks on the sticky side of adhesives. Forensic Sci Int 185:96–9910.1016/j.forsciint.2008.12.021 ↗
29. Wen G (1988) The infrared spectroscopy of minerals. Chongqing University Press, Chongqing, pp 78–82
30. Wilshire B (1996) Advances in fingerprint detection. Endeavour 20:12–1510.1016/0160-9327(96)10005-3 ↗
31. Zhang Y, Chen W, Zhang J, Liu J, Chen G, Pope C (2007) In vitro and in vivo toxicity of CdTe nanoparticles. J Nanosci Nanotechnol 7:49710.1166/jnn.2007.125 ↗
32. Zhao W, Gu J, Zhang L, Chen H, Shi J (2005) Fabrication of uniform magnetic nanocomposite spheres with a magnetic core/mesoporous silica shell structure. J Am Chem Soc 127:8916–891710.1021/ja051113r ↗