We demonstrate that persistent homology (PH) analysis, a new technique of the computational topology, combined with molecular dynamics simulations, can successfully characterize the complex liquid structure. First, we applied PH analysis to an antigen-antibody complex solution, showing that the interfacial water can be automatically detected. Second, we used PH analysis to characterize the structure of a mixture consisting of epoxy resin and amine curing agent, finding that amine nitrogen rings become larger due to the presence of the large epoxy domain.

1.
L.
Bosio
,
J.
Teixeira
and
H. E.
Stanley
,
Phys. Rev. Lett.
46
,
597
(
1981
).
2.
S.
Dixit
,
J.
Crain
,
W.
Poon
,
J.
Finney
and
A.
Soper
,
Nature
416
,
829
(
2002
).
3.
T.
Takamuku
,
Y.
Kyoshoin
,
H.
Noguchi
,
S.
Kusano
and
T.
Yamaguchi
,
J. Phys. Chem. B
111
,
9270
9280
(
2007
).
4.
M. P.
Allen
and
D. J.
Tildesley
, Computer simulation of liquids. (
Oxford university press
,
2017
).
5.
H.
Edelsbrunner
and
J.
Harer
,
Contemporary mathematics
453
,
257
282
(
2008
).
6.
Y.
Hiraoka
,
T.
Nakamura
,
A.
Hirata
,
E. G.
Escolar
,
K.
Matsue
and
Y.
Nishiura
,
Proc. Natl. Acad. Sci. U. S. A.
113
,
7035
7040
(
2016
).
7.
T.
Yamashita
,
Int. Immunol.
30
,
133
140
(
2018
).
8.
T.
Yamashita
and
Y.
Takamatsu
,
AIP Conf. Proc.
1906
,
030022
(
2017
).
9.
T.
Yamashita
,
Biomedical Sciences
2
,
34
47
(
2016
).
10.
T.
Yamashita
,
AIP Conf. Proc.
1790
,
020026
(
2016
).
11.
T.
Yamashita
and
H.
Fujitani
,
Chem. Phys. Lett.
609
,
50
53
(
2014
).
12.
H.
Fujitani
,
K.
Shinoda
,
T.
Yamashita
and
T.
Kodama
,
J. Phys.: Conf. Ser.
454
,
012018
(
2013
).
13.
T.
Yamashita
,
JPS Conf. Proc.
5
,
010003
(
2015
).
14.
S.
Pronk
,
S.
Páll
,
R.
Schulz
,
P.
Larsson
,
P.
Bjelkmar
,
R.
Apostolov
,
M. R.
Shirts
,
J. C.
Smith
,
P. M.
Kasson
and
D.
Van Der Spoel
,
Bioinformatics
29
,
845
854
(
2013
).
15.
T.
Nakayama
,
E.
Mizohata
,
T.
Yamashita
,
S.
Nagatoishi
,
M.
Nakakido
,
H.
Iwanari
,
Y.
Mochizuki
,
Y.
Kado
,
Y.
Yokota
and
R.
Satoh
,
Protein Sci.
24
,
328
340
(
2015
).
16.
F.-L.
Jin
,
X.
Li
and
S.-J.
Park
,
J. Ind. Eng. Chem.
29
,
1
11
(
2015
).
17.
S.
Plimpton
,
J. Comp. Phys.
117
,
1
19
(
1995
).
18.
J.
Xu
,
T.
Yamashita
,
N.
Agmon
and
G. A.
Voth
,
J. Phys. Chem. B
117
,
15426
15435
(
2013
).
19.
T.
Sakano
,
M. I.
Mahamood
,
T.
Yamashita
and
H.
Fujitani
,
Biophys. Physicobiol.
13
,
181
194
(
2016
).
This content is only available via PDF.
You do not currently have access to this content.