Ultrasound-pretreatment combined with Ti3C2-TiO2-AuNPs enhancing the electrogenerated chemiluminescence of the air-saturated luminol for exosomes detection

Huixin Zhang; Xin Zhou; Feifei Zhang; Jianfei Xia; Zonghua Wang

Ultrasonics Sonochemistry (Mar 2023)

Ultrasound-pretreatment combined with Ti3C2-TiO2-AuNPs enhancing the electrogenerated chemiluminescence of the air-saturated luminol for exosomes detection

Huixin Zhang,
Xin Zhou,
Feifei Zhang,
Jianfei Xia,
Zonghua Wang

Affiliations

Huixin Zhang: College of Chemistry and Chemical Engineering, College of Materials Science and Engineering, Shandong Sino-Japanese Centre for Collaborative Research of Carbon Nanomaterials, Instrumental Analysis Centre of Qingdao University, Qingdao University, Qingdao, Shandong 266071, China
Xin Zhou: College of Chemistry and Chemical Engineering, College of Materials Science and Engineering, Shandong Sino-Japanese Centre for Collaborative Research of Carbon Nanomaterials, Instrumental Analysis Centre of Qingdao University, Qingdao University, Qingdao, Shandong 266071, China
Feifei Zhang: College of Chemistry and Chemical Engineering, College of Materials Science and Engineering, Shandong Sino-Japanese Centre for Collaborative Research of Carbon Nanomaterials, Instrumental Analysis Centre of Qingdao University, Qingdao University, Qingdao, Shandong 266071, China
Jianfei Xia: College of Chemistry and Chemical Engineering, College of Materials Science and Engineering, Shandong Sino-Japanese Centre for Collaborative Research of Carbon Nanomaterials, Instrumental Analysis Centre of Qingdao University, Qingdao University, Qingdao, Shandong 266071, China
Zonghua Wang: Corresponding author.; College of Chemistry and Chemical Engineering, College of Materials Science and Engineering, Shandong Sino-Japanese Centre for Collaborative Research of Carbon Nanomaterials, Instrumental Analysis Centre of Qingdao University, Qingdao University, Qingdao, Shandong 266071, China

Journal volume & issue: Vol. 94
p. 106330

Abstract

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It is still a great challenge to develop effective strategies to improve the low electrogenerated chemiluminescence (ECL) of air-saturated luminol. Herein, the synergistic effects of Ti3C2-TiO2-AuNPs nano hybrid and high-intensity focused ultrasound pretreatment (ultrasound-pretreatment) were used to significantly improve the ECL emission of the air-saturated luminol, and the mechanism was proposed. The ultrasound-pretreatment as a green method with the cavitation effect could form O2–• and H2O2 in situ as an initiator. TiO2 and Au nanoparticles (AuNPs) were in situ decorated on the Ti3C2 surface to form Ti3C2-TiO2-AuNPs, and it was proved as a highly efficient booster which could catalyze and aggregate H2O2 to the O2–•. The utilization rate of intermediates has been greatly improved. Exosomes as model targets can be sensitively detected by the ECL sensor. The detection limit was 195 particles μL−1. The detection results of exosomes in actual samples are satisfactory. We believe that the ultrasound-pretreatment strategy could be extended to the sensitive detection in the biological sample.

Published in Ultrasonics Sonochemistry

ISSN: 1350-4177 (Print); 1873-2828 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Chemistry; Science: Physics: Acoustics. Sound
Website: https://www.journals.elsevier.com/ultrasonics-sonochemistry

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