Visualization of Sweat Fingerprints on Various Surfaces Using a Conjugated Polyelectrolyte

Joon Hyun Yoon; Young Jae Jin; Toshikazu Sakaguchi; Giseop Kwak

doi:10.1021/acsami.6b05573

Visualization of Sweat Fingerprints on Various Surfaces Using a Conjugated Polyelectrolyte

Joon Hyun Yoon, Young Jae Jin, Toshikazu Sakaguchi, Giseop Kwak

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

24 Scopus citations

Abstract

A conformation-variable conjugated polyelectrolyte responding to oppositely charged biomolecules was examined as an imaging agent for the detection of latent fingerprints (LFPs). Sulfonated poly(diphenylacetylene) (SPDPA) produces high-resolution fluorescence (FL) LFP images by simple wetting of the target objects with the polymer solution without any additional treatment. SPDPA readily interacts with LFP sweat components (especially amino acids) via electrostatic interactions, leading to significantly enhanced FL images in a "turn-on" mode. The FL emission enhancement was examined in a model reaction between SPDPA and an amino acid standard. Visualization with SPDPA is effective on various surfaces, including both rough (paper) and smooth (glass and plastic) ones. Moreover, SPDPA readily interacts with extremely thin sweat LFPs, especially on smooth glass surfaces.

Original language	English
Pages (from-to)	24025-24029
Number of pages	5
Journal	ACS applied materials & interfaces
Volume	8
Issue number	36
DOIs	https://doi.org/10.1021/acsami.6b05573
State	Published - 14 Sep 2016

Keywords

conjugated polyelectrolyte
imaging probe
latent fingerprint
sweat
visualization

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10.1021/acsami.6b05573

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title = "Visualization of Sweat Fingerprints on Various Surfaces Using a Conjugated Polyelectrolyte",

abstract = "A conformation-variable conjugated polyelectrolyte responding to oppositely charged biomolecules was examined as an imaging agent for the detection of latent fingerprints (LFPs). Sulfonated poly(diphenylacetylene) (SPDPA) produces high-resolution fluorescence (FL) LFP images by simple wetting of the target objects with the polymer solution without any additional treatment. SPDPA readily interacts with LFP sweat components (especially amino acids) via electrostatic interactions, leading to significantly enhanced FL images in a {"}turn-on{"} mode. The FL emission enhancement was examined in a model reaction between SPDPA and an amino acid standard. Visualization with SPDPA is effective on various surfaces, including both rough (paper) and smooth (glass and plastic) ones. Moreover, SPDPA readily interacts with extremely thin sweat LFPs, especially on smooth glass surfaces.",

keywords = "conjugated polyelectrolyte, imaging probe, latent fingerprint, sweat, visualization",

author = "Yoon, {Joon Hyun} and Jin, {Young Jae} and Toshikazu Sakaguchi and Giseop Kwak",

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AU - Yoon, Joon Hyun

AU - Jin, Young Jae

AU - Sakaguchi, Toshikazu

AU - Kwak, Giseop

PY - 2016/9/14

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AB - A conformation-variable conjugated polyelectrolyte responding to oppositely charged biomolecules was examined as an imaging agent for the detection of latent fingerprints (LFPs). Sulfonated poly(diphenylacetylene) (SPDPA) produces high-resolution fluorescence (FL) LFP images by simple wetting of the target objects with the polymer solution without any additional treatment. SPDPA readily interacts with LFP sweat components (especially amino acids) via electrostatic interactions, leading to significantly enhanced FL images in a "turn-on" mode. The FL emission enhancement was examined in a model reaction between SPDPA and an amino acid standard. Visualization with SPDPA is effective on various surfaces, including both rough (paper) and smooth (glass and plastic) ones. Moreover, SPDPA readily interacts with extremely thin sweat LFPs, especially on smooth glass surfaces.

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KW - latent fingerprint

KW - sweat

KW - visualization

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Visualization of Sweat Fingerprints on Various Surfaces Using a Conjugated Polyelectrolyte

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