Journal
SAINS MALAYSIANA
Volume 46, Issue 12, Pages 2447-2454Publisher
UNIV KEBANGSAAN MALAYSIA
DOI: 10.17576/jsm-2017-4612-21
Keywords
Antibody; biosensor; Japanese Encephalitis Virus (JEV) antigen; optical sensing probe; silver nanoparticles (Ag NPs)
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Funding
- Ministry of Higher Education (MOHE), Malaysia [FRGS/STG05(01)/960/2013(01)]
- MyBrain15 (MyMaster) Programme
- Universiti Malaysia Sarawak Zamalah
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A novel silver nanoparticles (Ag NPs)-based optical sensing probe has been developed for the detection of Japanese Encephalitis virus (JEV). Ag NPs were initially deposited onto amine functionalized glass slides. Subsequently, JEV antibodies were self-assembled onto surfaces of Ag NPs to form optical sensing probes. The detection of JEV antigen was observed via changes in light absorbance by Ag NPs upon occurrence of JEV antigen-antibody bindings. A highly sensitive and rapid optical sensing probe for JEV antigen with a detection limit of 12.8 ng/mL (for S/N ratio = 3) and an analysis assay time of 1 h had been demonstrated.
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