Cargo encapsulated hepatitis E virus-like particles for anti-HEV antibody detection.

Biosensors & Bioelectronics
Akhilesh Babu GanganboinaEnoch Y Park

Abstract

Viral capsid-nanoparticle hybrid structures incorporating quantum dots (QDs) into virus-like particles (VLPs) constitute an emerging bioinspired type of nanoarchitecture paradigm used for various applications. In the present study, we packed inorganic QDs in vitro into the hepatitis E virus-like particle (HEV-LP) and developed a fluorometric biosensor for HEV antibody detection. Firstly, for the preparation of QDs-encapsulated HEV-LPs (QDs@HEV-LP), the HEV-LPs produced by a recombinant baculovirus expression system were disassembled and reassembled in the presence of QDs using the self-assembly approach. Thus, the prepared QDs@HEV-LP exhibited excellent fluorescence properties similar to QDs. Further, in the presence of HEV antibodies in the serum samples, when mixed with QDs@HEV-LP, bind together and further bind to anti-IgG-conjugated magnetic nanoparticles (MNPs). The target-specific anti-IgG-MNPs and QDs@HEV-LP enrich the HEV antibodies by magnetic separation, and the separated QDs@HEV-LP-bound HEV antibodies are quantified by fluorescence measurement. This developed method was applied to detect the HEV antibody from sera of HEV-infected monkey from 0 to 68 days-post-infection and successfully diagnosed for HEV antibodies. ...Continue Reading

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Dec 4, 2019·Analytical Chemistry·Honglan Qi, Chengxiao Zhang
Apr 7, 2020·Biosensors & Bioelectronics·Akhilesh Babu GanganboinaEnoch Y Park
Jun 24, 2020·ACS Applied Materials & Interfaces·Van Dien DangRuey-An Doong
Sep 25, 2020·ACS Applied Materials & Interfaces·Akhilesh Babu GanganboinaEnoch Y Park
Oct 9, 2020·Biosensors & Bioelectronics·Akhilesh Babu GanganboinaEnoch Y Park

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