Photoelectrochemical sensor for pentachlorophenol on microfluidic paper-based analytical device based on the molecular imprinting technique.
Combining microfluidic paper-based analytical device (μ-PAD) and the molecular imprinting technique, a visible light photoelectrochemical (PEC) sensing platform for the detection of pentachlorophenol (PCP) was established on gold nanoparticles (AuNPs) decorated paper working electrode using polypyrrole-functionalized ZnO nanoparticles. Ascorbic acid (AA) was exploited as an efficient and nontoxic electron donor for scavenging photogenerated holes under mild solution medium and facilitating the generation of stable photocurrent. The microfluidic molecular imprinted polymer-based PEC analytical origami device is developed for the detection of PCP in the linear range from 0.01 ng mL(-1) to 100 ng mL(-1) with a low detection limit of 4 pg mL(-1). This disposable microfluidic PEC origami device would provide a new platform for sensitive, specific, and multiplex assay in public health, environmental monitoring, and the developing world.
Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China.
Guoqiang
G
Sun
Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China.
Panpan
P
Wang
Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials, University of Jinan, Jinan 250022, PR China.
Shenguang
S
Ge
Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China.
Lei
L
Ge
Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China.
Jinghua
J
Yu
Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China. Electronic address: chm_yanm@ujn.edu.cn.
Mei
M
Yan
D002482:Cellulose / Q000737:chemistry; D055664:Electrochemical Techniques / Q000295:instrumentation*; D004785:Environmental Pollutants / Q000032:analysis*; D004867:Equipment Design; D006046:Gold / Q000737:chemistry; D057230:Limit of Detection; D046210:Microfluidic Analytical Techniques / Q000295:instrumentation*; D054802:Molecular Imprinting; D053758:Nanoparticles / Q000737:chemistry / Q000648:ultrastructure; D010209:Paper; D010416:Pentachlorophenol / Q000032:analysis*; D010575:Pesticides / Q000032:analysis; D011108:Polymers / Q000737:chemistry; D011758:Pyrroles / Q000737:chemistry; D015034:Zinc Oxide / Q000737:chemistry
D004785:Environmental Pollutants; D010575:Pesticides; D011108:Polymers; D011758:Pyrroles; C067635:polypyrrole; D006046:Gold; D002482:Cellulose; D010416:Pentachlorophenol; D015034:Zinc Oxide
Microfluidic paper-based analytical device; Molecular imprinting technique; Pentachlorophenol; Photoelectrochemical