Dielectric impedance spectroscopy of polymer-coated microelectrodes for adsorption monitoring of proteins within polymer microchannels
نویسندگان
چکیده
منابع مشابه
Dynamics of BSA adsorption onto a photoablated polymer surface in a dielectric microchip.
Dielectric impedance spectroscopy in a microchip was used for monitoring the adsorption of biomolecules onto a heterogeneous polymer surface obtained after the photoablation process. The sensor comprises a thin dielectric layer with two parallel carbon microband electrodes on the one side, and the photoablated surface on the other. The biomolecules need not to be labelled, as in an optical bios...
متن کاملFreeze Drying Improves the Shelf-Life of Conductive Polymer Modified Neural Electrodes
Coating microelectrodes with conductive polymer is widely recognized to decrease impedance and improve performance of implantable neural devices during recording and stimulation. A concern for wide-spread use of this approach is shelf-life, i.e., the electrochemical stability of the coated microelectrodes prior to use. In this work, we investigated the possibility of using the freeze-drying pro...
متن کاملThe selective flow of volatile organic compounds in conductive polymer-coated microchannels
Many gaseous markers of critical biological, physicochemical, or industrial occurrences are masked by the cross-sensitivity of the sensors to the other active components present at higher concentrations. Here, we report the strongly selective diffusion and drift of contaminant molecules in air-filled conductive polymer-coated microfluidic channels for the first time. Monitoring the passage of d...
متن کاملDielectric Relaxation Spectroscopy
C.M. Roland (December 17, 2014) Introduction Impedance spectroscopy and dielectric relaxation measurements yield the same information; however, their purpose and analysis methods differ. Impedance spectroscopy is typically used to probe electrochemical processes, while dielectric relaxation data, almost invariably expressed in the complex permittivity representation, provide information on dyna...
متن کاملReal time affinity biosensor onto insulated polymer using electric impedance spectroscopy in dielectric microchip
Statistical study In general 3 experiments were taken into account in order to calculate dispersion parameters as standard deviation and variation coefficient (RSD). The last column in Table S1 shows the percentage variation of the interfacial impedance modulus when recognition reaction was taking place. Indeed the interfacial impedance variation on a surface coated with BSA is in a linear rela...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2017