Application of photoluminescent CdS/PAMAM nanocomposites in fingerprint detection

Yu Juan Jin; Yun Jun Luo; Guo Ping Li; Jie Li; Yuan Feng Wang; Rui Qin Yang; Wen Ting Lu

doi:10.1016/j.forsciint.2008.04.010

Application of photoluminescent CdS/PAMAM nanocomposites in fingerprint detection

Yu Juan Jin, Yun Jun Luo^*, Guo Ping Li, Jie Li, Yuan Feng Wang, Rui Qin Yang, Wen Ting Lu

^*Corresponding author for this work

School of Material Science and Engineering

Research output: Contribution to journal › Article › peer-review

84 Citations (Scopus)

Abstract

Uniform and well-dispersed photoluminescent semiconductor CdS (cadmium sulfide) QDs (quantum dots) were in situ prepared inside Generation 4.0-NH₂ PAMAM (polyamidoamine) dendrimers in methanol, methanol and water mixed solutions of volume ratio 1:9, respectively. The prepared solutions containing photoluminescent semiconductor CdS QDs were utilized for detection of cyanoacrylate ester fumed fingerprints on tinfoil. The results show that fumed latent fingerprints treated with prepared CdS/PAMAM nanocomposites in methanol, 1:9 methanol:water mixed solutions emit pale yellow-green and orange luminescence respectively under ultraviolet excitation of 365 nm from an UV LED. Fumed fingerprints were successfully detected with good resolving rate and the mechanism was studied in detail.

Original language	English
Pages (from-to)	34-38
Number of pages	5
Journal	Forensic Science International
Volume	179
Issue number	1
DOIs	https://doi.org/10.1016/j.forsciint.2008.04.010
Publication status	Published - 18 Jul 2008

Keywords

Cadmium sulfide
Dendrimers
Fingerprints
Forensic science
Photoluminescence
Semiconductor quantum dots

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10.1016/j.forsciint.2008.04.010

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@article{2b5d56fe0ba8478aba0689f3c2ffe309,

title = "Application of photoluminescent CdS/PAMAM nanocomposites in fingerprint detection",

abstract = "Uniform and well-dispersed photoluminescent semiconductor CdS (cadmium sulfide) QDs (quantum dots) were in situ prepared inside Generation 4.0-NH2 PAMAM (polyamidoamine) dendrimers in methanol, methanol and water mixed solutions of volume ratio 1:9, respectively. The prepared solutions containing photoluminescent semiconductor CdS QDs were utilized for detection of cyanoacrylate ester fumed fingerprints on tinfoil. The results show that fumed latent fingerprints treated with prepared CdS/PAMAM nanocomposites in methanol, 1:9 methanol:water mixed solutions emit pale yellow-green and orange luminescence respectively under ultraviolet excitation of 365 nm from an UV LED. Fumed fingerprints were successfully detected with good resolving rate and the mechanism was studied in detail.",

keywords = "Cadmium sulfide, Dendrimers, Fingerprints, Forensic science, Photoluminescence, Semiconductor quantum dots",

author = "Jin, {Yu Juan} and Luo, {Yun Jun} and Li, {Guo Ping} and Jie Li and Wang, {Yuan Feng} and Yang, {Rui Qin} and Lu, {Wen Ting}",

year = "2008",

month = jul,

day = "18",

doi = "10.1016/j.forsciint.2008.04.010",

language = "English",

volume = "179",

pages = "34--38",

journal = "Forensic Science International",

issn = "0379-0738",

publisher = "Elsevier Ireland Ltd",

number = "1",

}

TY - JOUR

T1 - Application of photoluminescent CdS/PAMAM nanocomposites in fingerprint detection

AU - Jin, Yu Juan

AU - Luo, Yun Jun

AU - Li, Guo Ping

AU - Li, Jie

AU - Wang, Yuan Feng

AU - Yang, Rui Qin

AU - Lu, Wen Ting

PY - 2008/7/18

Y1 - 2008/7/18

N2 - Uniform and well-dispersed photoluminescent semiconductor CdS (cadmium sulfide) QDs (quantum dots) were in situ prepared inside Generation 4.0-NH2 PAMAM (polyamidoamine) dendrimers in methanol, methanol and water mixed solutions of volume ratio 1:9, respectively. The prepared solutions containing photoluminescent semiconductor CdS QDs were utilized for detection of cyanoacrylate ester fumed fingerprints on tinfoil. The results show that fumed latent fingerprints treated with prepared CdS/PAMAM nanocomposites in methanol, 1:9 methanol:water mixed solutions emit pale yellow-green and orange luminescence respectively under ultraviolet excitation of 365 nm from an UV LED. Fumed fingerprints were successfully detected with good resolving rate and the mechanism was studied in detail.

AB - Uniform and well-dispersed photoluminescent semiconductor CdS (cadmium sulfide) QDs (quantum dots) were in situ prepared inside Generation 4.0-NH2 PAMAM (polyamidoamine) dendrimers in methanol, methanol and water mixed solutions of volume ratio 1:9, respectively. The prepared solutions containing photoluminescent semiconductor CdS QDs were utilized for detection of cyanoacrylate ester fumed fingerprints on tinfoil. The results show that fumed latent fingerprints treated with prepared CdS/PAMAM nanocomposites in methanol, 1:9 methanol:water mixed solutions emit pale yellow-green and orange luminescence respectively under ultraviolet excitation of 365 nm from an UV LED. Fumed fingerprints were successfully detected with good resolving rate and the mechanism was studied in detail.

KW - Cadmium sulfide

KW - Dendrimers

KW - Fingerprints

KW - Forensic science

KW - Photoluminescence

KW - Semiconductor quantum dots

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SN - 0379-0738

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SP - 34

EP - 38

JO - Forensic Science International

JF - Forensic Science International

IS - 1

ER -

Application of photoluminescent CdS/PAMAM nanocomposites in fingerprint detection

Abstract

Keywords

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