title: Resonance phenomenon of the ATP motor as an ultrasensitive biosensor.
abstract: We designed a rotary biosensor as a damping effector, with the rotation of the F(0)F(1)-ATPase driven by Adenosine Triphosphate (ATP) synthesis being indicated by the fluorescence intensity and a damping effect force being induced by the binding of an RNA molecule to its probe on the rotary biosensor. We found that the damping effect could contribute to the resonance phenomenon and energy transfer process of our rotary biosensor in the liquid phase. This result indicates that the ability of the rotary motor to operate in the vibration harmonic mode depends on the environmental conditions and mechanism in that a few molecules of the rotary biosensor could induce all of the sensor molecules to fluoresce together. These findings contribute to the theory study of the ATPase motor and future development of biosensors for ultrasensitive detection.
authors.affiliation: Institute of Biophysics, Chinese Academy Sciences, Beijing 100101, PR China.
authors.forename: Peirong
authors.initials: P
authors.lastname: Wang
authors.forename: Xiaoguang
authors.initials: X
authors.lastname: Zhang
authors.forename: Xu
authors.initials: X
authors.lastname: Zhang
authors.forename: Xia
authors.initials: X
authors.lastname: Wang
authors.forename: Xueren
authors.initials: X
authors.lastname: Li
authors.forename: Jiachang
authors.initials: J
authors.lastname: Yue
mesh_terms: D000255:Adenosine Triphosphate / Q000096:biosynthesis*; D015374:Biosensing Techniques; D031541:Fluorescence Resonance Energy Transfer; D015497:HIV-1 / Q000302:isolation & purification; D006801:Humans; D006180:Proton-Translocating ATPases / Q000737:chemistry*; D012367:RNA, Viral / Q000032:analysis; D012399:Rotation; D012680:Sensitivity and Specificity; D014732:Vibration
chemical_list: D012367:RNA, Viral; D000255:Adenosine Triphosphate; D006180:Proton-Translocating ATPases