title: Recent research trends of radio-frequency biosensors for biomolecular detection.
abstract: This article reviews radio-frequency (RF) biosensors based on passive and/or active devices and circuits. In particular, we focus on RF biosensors designed for detection of various biomolecules such as biotin-streptavidin, DNA hybridization, IgG, and glucose. The performance of these biosensors has been enhanced by the introduction of various sensing schemes with diverse nanomaterials (e.g., carbon nanotubes, graphene oxide, magnetic and gold nanoparticles, etc.). In addition, the RF biosensing platforms that can be associated with an RF active system are discussed. Finally, the challenges of RF biosensors are presented and suggestions are made for their future direction and prospects.
authors.affiliation: School of Electrical and Electronic Engineering, Yonsei University, Seoul, South Korea.
authors.forename: Hee-Jo
authors.initials: HJ
authors.lastname: Lee
authors.affiliation: School of Electrical and Electronic Engineering, Yonsei University, Seoul, South Korea. Electronic address: jgyook@yonsei.ac.kr.
authors.forename: Jong-Gwan
authors.initials: JG
authors.lastname: Yook
mesh_terms: D000818:Animals; D015374:Biosensing Techniques / Q000295:instrumentation* / Q000379:methods; D001710:Biotin / Q000032:analysis; D004867:Equipment Design; D005947:Glucose / Q000032:analysis; D006801:Humans; D007074:Immunoglobulin G / Q000032:analysis; D009693:Nucleic Acid Hybridization / Q000379:methods; D011846:Radio Waves; D019809:Streptavidin / Q000032:analysis; D014159:Transducers
chemical_list: D007074:Immunoglobulin G; D001710:Biotin; D019809:Streptavidin; D005947:Glucose
keywords: Biomolecule; Biosensor; Detectable limit; Diagnosis; Radio-frequency