TY - JOUR
T1 - Rapid on-site detection of zinc pyrithione in real-life samples with unprecedented selectivity and sensitivity
AU - Ou, Weihui
AU - Shen, Junda
AU - Zhong, Jing
AU - He, Jun
AU - Lei, Dangyuan
AU - Li, Hongkun
AU - Chen, Yingxian
AU - Wang, Chong
AU - Wu, Haikun
AU - Zhou, Binbin
AU - Tang, Xinxue
AU - Fan, Yulong
AU - Lu, Jian
AU - Li, Yang Yang
PY - 2023/3/1
Y1 - 2023/3/1
N2 - Zinc pyrithione (ZPT) has been widely applied in anti-dandruff cosmetics and anti-fouling coatings/paints. Recently, the European Union has announced a ban on further ZPT use in cosmetic products due to its potential health risk, raising the needs for its detection in a reliable and convenient way. This study reports a highly sensitive (down to ng/L level) method for rapid on-site one-step (no need for any pretreatments) detection of ZPT in real-life samples with exceptional selectivity, using the surface-enhanced Raman spectroscopy (SERS) technique. The SERS sensor with significant Raman enhancement is mass-produced by electrochemically treating commercial Ag needle, enabling insertable probes for easy sampling. Applying thus-obtained SERS sensor, the ZPT in shampoos can be readily identified on a portable Raman spectrometer within one minute. Mechanistic studies reveal that the formation of the Ag-Zn and Ag-S bonds bestows Ag probe with a strong affinity toward ZPT, enabling unprecedented selectivity. To the best of our knowledge, it is for the first time that ZPT is detected using the SERS technique, which is potentially valuable for the market regulation of its usage and the investigation of its ecological impacts.
AB - Zinc pyrithione (ZPT) has been widely applied in anti-dandruff cosmetics and anti-fouling coatings/paints. Recently, the European Union has announced a ban on further ZPT use in cosmetic products due to its potential health risk, raising the needs for its detection in a reliable and convenient way. This study reports a highly sensitive (down to ng/L level) method for rapid on-site one-step (no need for any pretreatments) detection of ZPT in real-life samples with exceptional selectivity, using the surface-enhanced Raman spectroscopy (SERS) technique. The SERS sensor with significant Raman enhancement is mass-produced by electrochemically treating commercial Ag needle, enabling insertable probes for easy sampling. Applying thus-obtained SERS sensor, the ZPT in shampoos can be readily identified on a portable Raman spectrometer within one minute. Mechanistic studies reveal that the formation of the Ag-Zn and Ag-S bonds bestows Ag probe with a strong affinity toward ZPT, enabling unprecedented selectivity. To the best of our knowledge, it is for the first time that ZPT is detected using the SERS technique, which is potentially valuable for the market regulation of its usage and the investigation of its ecological impacts.
KW - Ag needle
KW - Cosmetic products
KW - Mass-produced
KW - SERS
KW - Zinc pyrithione
UR - http://www.scopus.com/inward/record.url?scp=85143883616&partnerID=8YFLogxK
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85143883616&origin=recordpage
U2 - 10.1016/j.snb.2022.133129
DO - 10.1016/j.snb.2022.133129
M3 - RGC 21 - Publication in refereed journal
SN - 0925-4005
VL - 378
JO - Sensors and Actuators B: Chemical
JF - Sensors and Actuators B: Chemical
M1 - 133129
ER -