Biomolecular and Organic Electronics, Department of Physics, Chemistry and Biology, Linköping University, SE-58183 Linköping, Sweden.
School of Chemical Engineering, Jimma Institute of Technology, Jimma University, P.O. 378, Jimma, Ethiopia.
Biomacromolecules. 2020 Mar 9;21(3):1214-1221. doi: 10.1021/acs.biomac.9b01667. Epub 2020 Feb 20.
Deoxyribonucleic acid (DNA) and a self-doped conjugated polyelectrolyte, poly(4-(2,3-dihydrothieno[3,4-b]-[1,4]dioxin-2-yl-methoxy)-1-butanesulfonic acid (PEDOT-S), are assembled for organic optoelectronics and bioelectronics. The DNA's helix-coil phase transition in water is studied as a function of composition by thermo-optical analysis. DNA and PEDOT-S are functionalized by using a surfactant, cetyltrimethylammonium chloride (CTMA), and DNA:CTMA, PEDOT-S:CTMA, and DNA:CTMA:PEDOT-S:CTMA complexes were characterized regarding thermal, optical, morphological, and structural properties. Finally, DNA and DNA:PEDOT-S mixtures are processed in water for fabricating organized films through brushing. The electrical properties of these films are characterized using an interdigitated electrode. The films show an electronic conductivity of ∼10-10 S/cm in a range of semiconductors.
脱氧核糖核酸 (DNA) 和一种自掺杂的共轭聚电解质，聚(4-(2,3-二氢噻吩并[3,4-b]-[1,4]二恶英-2-基-甲氧基)-1-丁烷磺酸 (PEDOT-S)，被组装用于有机光电和生物电子学。通过热光学分析研究了 DNA 在水中的螺旋-线圈相转变随组成的变化。通过使用表面活性剂十六烷基三甲基氯化铵 (CTMA) 对 DNA 和 PEDOT-S 进行功能化，并且对 DNA:CTMA、PEDOT-S:CTMA、和 DNA:CTMA:PEDOT-S:CTMA 复合物的热、光、形态和结构性质进行了表征。最后，通过刷涂将 DNA 和 DNA:PEDOT-S 混合物在水中加工成组织有序的薄膜。使用叉指电极对这些薄膜的电性能进行了表征。这些薄膜在半导体范围内表现出约 10-10 S/cm 的电子电导率。
