Vesicular Membrane with Structured Interstitial Water

Yang Yang; Chin Yi Chen; Da Peng Liu; Ankit Raj; Hiro-O Hamaguchi; Hui Bin Qiu; Yan Jun Lin; Chien Lung Wang; Xiao Song Wang

doi:10.1021/acs.jpcb.0c06678

Vesicular Membrane with Structured Interstitial Water

J Phys Chem B. 2020 Oct 15;124(41):9239-9245. doi: 10.1021/acs.jpcb.0c06678. Epub 2020 Sep 30.

Authors

Yang Yang^{1

2}, Chin Yi Chen³, Da Peng Liu², Ankit Raj³, Hiro-O Hamaguchi³, Hui Bin Qiu⁴, Yan Jun Lin¹, Chien Lung Wang³, Xiao Song Wang²

Affiliations

¹ State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
² Waterloo Institute for Nanotechnology and Department of Chemistry, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada.
³ Department of Applied Chemistry, National Chiao Tung University, 1001 Ta Hsueh Road, Hsinchu 30010, Taiwan.
⁴ School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.

PMID: 32931275
DOI: 10.1021/acs.jpcb.0c06678

Abstract

Self-assembled vesicles with structured (tetrahedral order with strong hydrogen bonds) interstitial water are reported. The vesicles, known as MCsome, are assembled from metal carbonyl compounds, FpR (Fp = (Cp)Fe(PPh₃)(CO)(CO-), Cp = cyclopentadiene, R = C₃Bithiophene, C₆Pyrene or C₆) with the Fp heads exposed to water. The R groups are surrounded by the interstitial water with the hydrogen bonding strength variable depending on the hydrophobicity of R groups. The structure of the interstitial water is responsible for the integrity of the membrane and swelling behavior of the vesicles. This constructional role of water opens new concepts for the creation of aqueous assemblies with water-mediated functions.