Journal
ANALYTICAL CHEMISTRY
Volume 91, Issue 24, Pages 15748-15756Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.analchem.9b04001
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Funding
- National Natural Science Foundation of China [21775132, 21305118]
- Scientific Research Foundation of Hunan Provincial Education Department [16A204]
- National Natural Science Foundation of Hunan province [2018B2388]
- Hunan 2011 Collaborative Innovation Center of Chemical Engineering & Technology with Environmental Benignity and Effective Resource Utilization
- project of the innovation team of the ministry of education [IRT_17R90]
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Simultaneous detection of large viruses has been a great obstacle in the field of molecular imprinting. In this work, for the first time, a multifunctional molecularly imprinted sensor for single or simultaneous determination of hepatitis A virus (HAV) and hepatitis B virus (HBV) is provided. Visual detection was realized due to the color of green and red quantum dots that varied with the concentration of the target substance. The combination of hydrophilic monomers and metal chelation reduced the nonspecific binding and enhanced the specificity of adsorption. As a result, satisfactory selectivity and sensitivity were obtained for the detection of the two viruses, with imprinting factors of 3.70 and 3.35 for HAV and HBV, and limits of detection of 3.4 and 5.3 pmol/L, respectively, that were achieved within 20 min. The excellent recoveries during simultaneous detection and single detection modes indicate the prominent ability of the proposed sensor to detect HAV and HBV in human serum and the potential ability to simultaneously detect multiple viruses in real applications.
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