Supplementary Material:
Synthesis of Hyper-Branched Poly(amidoamine) conjugated Silica
(HBPcS) Particles and their Application to Colorimetric Detection of
Cadmium Ion
Jung Min Ha1, Gyu Il Jung2, Jung Soo Kim2, Jin Woo Kim1, Seong Je Jeon2, and Sang Man Koo1,2,*
1
Department of Fuel Cells and Hydrogen Technology, Hanyang University, Seoul, 133 -791, Korea
2
Department of Chemical Engineering, Hanyang University, Seoul, 133-791, Korea
* Corresponding author
E-mail: sangman@hanyang.ac.kr
Telephone number: +822-2220-0527
Fax number: +822-2281-4800
Fig. S1 SEM images of (a) G(1) PAMAM-HBPcS particles, (b) G(3) PAMAM-HBPcS particles, and (c)
G(5) PAMAM-HBPcS particles
1
HBPcS
particles
of G(n)
Absorbance of
amide peak* for
G(n+0.5)
G(0)
G(0.5)
Absorbance of
amide peak* for
G(n)
Theoretical
Absorbance
ratio*** of
G(n+1)/G(n)
Conversion
efficiency
-
-
1.45
2.0
0.73
1.48
4.0
0.37
1.30
8.0
0.16
1.31
16.0
0.08
0.01448
0.01391
G(1.0)
0.12257
G(1.5)
0.11119
G(2.0)
0.178
G(2.5)
0.17421
G(3.0)
0.26401
G(3.5)
0.26008
G(4.0)
0.34184
G(4.5)
0.33475
G(5.0)
Experimental
Absorbance
ratio** of
G(n+1)/G(n)
0.44781
* Absorbance of amide peak was normalized with that of Si-O peak as a reference.
** Absorbance ratio was calculated by absorbance of amide peak for G(n+1)/absorbance of
amide peak for G(n)
*** Theoretical absorbance ratio was obtained from the increase in the amount of amine
functionalities by 2n for each generation of HBPcS particles
Fig. S2 (a) FT-IR absorbance ratio between amide peak (at 1650cm-1) and Si-O peak (at 1140cm-1)
and (b) conversion efficiencies for G(n) and G(n+0.5) HBPcS particles.
2
340
Weight loss (%)
60
55
50
320
45
40
Weight loss
Decomposition temperature
35
Decomposition temperature (℃)
65
300
MHS
G1.0
G3.0
G5.0
HBPcS
Fig. S3 The percent weight losses and the decomposition temperatures of HBPcS particles with
different generations.
HBPcS particles
MHS
G1.0
G3.0
G5.0
The amount of %weight loss
42.5%
48.5%
52.5%
58.5%
-
6%
10%
16%
wt% of dendrimer
Fig. S4 The amount of % weight losses and wt% of dendrimer for HBPcS particles with different
generations.
3
Fig. S5 FT-IR spectrum of G(0) HBPcS particles a) before and b), c) after modification of amine
functional groups to sulfonic functional groups.
Fig. S6 The color of TMPyP loaded a) MHS, G(0), and b) G(5) particles.
4
Fig. S7 Amount of loaded TMPyP molecules with the variation of (a) reaction temperature, (b) time,
and (c) pH of reaction medium for hyper-branched G(1) particles
5
Fig. S8 Soret band shifts upon the binding of heavy metal ions to MHS-TMPyP particles: a) Zn ion and
b) Hg ion.
6