Chem. J. Chinese Universities ›› 2019, Vol. 40 ›› Issue (4): 685.doi: 10.7503/cjcu20180741

• Analytical Chemistry • Previous Articles     Next Articles

Switchable Electrochemical Behavior of Matrine and Sophoridine at Multi-stimuli Responsive Hydrogel Film Electrode and Construction of Logic Gate

WU Xuemei1, WEI Jie1, XU Hongping2, ZUO Lingxia2, SHAN Xiaoyan2, YAO Huiqin1,2,*(), ZHENG Zhixiang3   

  1. 1. College of Pharmacy, 2. School of Basic Medical Sciences, Ningxia Medical University, Yinchuan 750004, China
    2. School of Basic Medical Sciences, Ningxia Medical University, Yinchuan 750004, China
    3. Key Laboratory of Evidence Science Technology Research and Application, Gansu Institute of Political Science and Law, Lanzhou 730070, China
  • Received:2018-11-01 Online:2019-04-03 Published:2019-01-09
  • Contact: YAO Huiqin E-mail:huiqin_yao@163.com
  • Supported by:
    † Supported by the Natural Science Foundation of Ningxia, China(No.NZ17052), the College Students' Innovation Experiment of Ningxia, China(No.NXCX2016139), the National Natural Science Foundation of China(No. 21665021) and the West China Top Class Discipline Project in Basic Medical Sciences.

Abstract:

Matrine(MT) and sophoridine(SR) were used as electroactive drug molecular probes to investigate the stimuli-responsive characteristics of the hydrogels poly(N-isopropyl)acrylamide(PNIPAM), and the changes of PNIPAM structure under different external stimuli(temperature, salt concentration and methanol) were observed by cyclic voltammetry(CV) method and scanning electron microscopy(SEM). The results show that at 25 ℃, MT and SR lead to a large oxidation peak current; when the temperature reached at 40 ℃, the oxidation peak currents of MT and SR are gradually reduced. The influence of different Na2SO4 concentration and different proportion of methanol on PNIPAM hydrogel were also investigated. The oxidation peak currents of MT and SR decreased with the increasing of Na2SO4 concentration(0—0.45 mol/L) and volume fraction of methanol ratio(0—40%). The results indicate that MT and SR could be used as molecular probes to investigate the switching behaviors of PNIPAM hydrogel films, and further constructed 3-input/2-output logic gate system.

Key words: Matrine, Sophoridine, Poly(N-isopropyl)acrylamide, Controllable, Logic gate

TrendMD: