Supporting information
Ru(II)(Tpy)2-functionalized
hydrogels:
synthesis,
reversible
responsiveness and coupling with the Belousov-Zhabotinsky reaction
Hongwei Zhou,*a Yan Yang,a Guohe Xu,b Weixing Chen,a Wenzhi Zhang,a Qiguan Wang,a
Zhaohui Zheng,b Xiaobin Ding,*b
a
Xi'an Technological University, School of Material and Chemical Engineering, Xi’an 710021,
P. R. China. bChengdu Institute of Organic Chemistry, University of Chinese Academy of
Sciences, Chengdu 610041, P. R. China.
FIGURE S1 (a) The optical images of the terpyridine-containing hydrogels after immersing
into Fe2+ solution for different period of time. (b) The corresponding length change of the
terpyridine-containing
hydrogels
over
time
and
the
optical
images
of
terpyridine-containing hydrogel with characters “poly” written with Fe2+ solution (inset).
the
Reduced state
Oxidized state
Reduced state
Gelt1
Gelt5
Gelt10
FIGURE S2 Redox responsive behaviours of the hydrogels. The three columns from left to right
represent the original states, the oxidized states, and the re-reduced states, respectively. This is
related to FIGURE 4.
Reduced state
Oxidized state
Reduced state
Gelnt1
Gelnt5
Gelnt10
FIGURE S3 Redox responsive behaviours of the hydrogels. The three columns from left to right
represent the original states, the oxidized states, and the re-reduced states, respectively. This is
related to FIGURE 4.
FIGURE S4 Optical images of Gelnt5 after immersing into NaBrO3 solution for different period of time
from 0 min (first image) to 11 min (last image). This is related to FIGURE 5.
FIGURE S5 Optical images of oxidized Gelnt5 after immersing into Na2SO3 solution for different
period of time from 1 min (first image) to 9 min (last image). This is related to FIGURE 5.