Self-assembly of tobacco mosaic virus at oil/water interfaces.
The oil/water interfacial assembly of tobacco mosaic virus (TMV) has been studied in situ by tensiometry and small-angle X-ray and neutron scattering (SAXS and SANS). TMV showed different orientations at the perfluorodecalin/water interface, depending on the initial TMV concentration in the aqueous phase. At low TMV concentration, the rods oriented parallel to the interface, mediating the interfacial interactions at the greatest extent per particle. At high TMV concentrations, the rods were oriented normal to the interface, mediating the interfacial interactions and also neutralizing inter-rod electrostatic repulsion. We found that the inter-rod repulsive forces between TMVs dominated the in-plane packing, which was strongly affected by the ionic strength and the bulk solution but not by the pH in the range of pH = 6-8.
He
Jinbo
J
Department of Polymer Science & Engineering, University of Massachusetts, Amherst, Massachusetts 01003, USA.
Niu
Zhongwei
Z
Tangirala
Ravisubhash
R
Wang
Jia-Yu
JY
Wei
Xinyu
X
Kaur
Gagandeep
G
Wang
Qian
Q
Jutz
Günther
G
Böker
Alexander
A
Lee
Byeongdu
B
Pingali
Sai Venkatesh
SV
Thiyagarajan
Pappannan
P
Emrick
Todd
T
Russell
Thomas P
TP
D018625:Microscopy, Atomic Force; D046529:Microscopy, Electron, Transmission; D009821:Oils / Q000737:chemistry*; D014027:Tobacco Mosaic Virus / Q000737:chemistry / Q000502:physiology* / Q000648:ultrastructure; D019065:Virus Assembly; D014867:Water / Q000737:chemistry*
D009821:Oils; D014867:Water