Version 1
: Received: 6 November 2019 / Approved: 8 November 2019 / Online: 8 November 2019 (04:16:49 CET)
How to cite:
Jin, J.; Shim, J.; Kim, J. Study on Diffusion Coefficient of Fluorophores in 3D Hydrogel with Cationic Charge using Microchip. Preprints2019, 2019110087. https://doi.org/10.20944/preprints201911.0087.v1
Jin, J.; Shim, J.; Kim, J. Study on Diffusion Coefficient of Fluorophores in 3D Hydrogel with Cationic Charge using Microchip. Preprints 2019, 2019110087. https://doi.org/10.20944/preprints201911.0087.v1
Jin, J.; Shim, J.; Kim, J. Study on Diffusion Coefficient of Fluorophores in 3D Hydrogel with Cationic Charge using Microchip. Preprints2019, 2019110087. https://doi.org/10.20944/preprints201911.0087.v1
APA Style
Jin, J., Shim, J., & Kim, J. (2019). Study on Diffusion Coefficient of Fluorophores in 3D Hydrogel with Cationic Charge using Microchip. Preprints. https://doi.org/10.20944/preprints201911.0087.v1
Chicago/Turabian Style
Jin, J., Jaesool Shim and Jinseok Kim. 2019 "Study on Diffusion Coefficient of Fluorophores in 3D Hydrogel with Cationic Charge using Microchip" Preprints. https://doi.org/10.20944/preprints201911.0087.v1
Abstract
The diffusion coefficients of ions are measured in a microchip filled with a cationic charged 3D hydrogel in order to study the effect of cationic charged 3D hydrogel on the diffusivity of ions. In this study, poly-diallyl-dimethyl-ammoniumchloride (poly-DADMAC) is used to produce a 3D hydrogel. Four different fluorophores are used in the 3D hydrogel rhodamine 6G, rhodamine-BSA, fluorescein isothio-cyanate (FITC) and FITC-BSA. The rhodamine 6G and rhodamine-BSA are positively charged (cations), while fluorescein isothio-cyanate (FITC) and FITC-BSA are negatively charged (anions). Two widely used techniques which are short time diffusivity measurement technique and long time diffusivity measurement techniques are used to measure the diffusion coefficients. For the short time measurement, Fluorescence recovery after photo-bleaching (FRAP) is used by a 3D confocal microscope. For the long time measurement, fluorescence images are taken for 11 days to observe a pure diffusivity without any convective movement. As a result, the diffusivity of the cations was found to be lower than that of the anions in the cationic charged hydrogel.
Keywords
fluorescence recovery after photo bleaching (FRAP); diffusion coefficient; electric charge; Poly-DADMAC; 3D hydrogel
Subject
Engineering, Mechanical Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
