Perovskite-Graphene Heterostructure Biosensor Integrated with Biotunable Nanoplasmonic Ternary Logic Gate for Ultrasensitive Cytokine Detection.

ABSTRACT: The integration of 2D-materials and optoelectronic devices has attracted great attention for advanced applications. We propose the first perovskite/graphene heterostructure-based FET biosensor with uniquely biotunable ternary logic gating functionality. The biosensor integrates a lateral perovskite-on-graphene heterostructure phototransistor with a vertical bio-nano-photonic filter, with a decoupled construction inset. In the phototransistor, photoactive perovskite quantum dots (PQDs) serve as sensitizers to absorb light while a high mobility single-layer graphene (SLG) acts as an expressway for carrier transport. In the bio-nano-photonic filter, a localized surface plasmon resonance (LSPR) is induced by gold nanoparticles (AuNPs) in conjunction with antigen-antibody binding, tuning the de

SUBMITTER: Sun J 

PROVIDER: S-EPMC12362746 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature