Polyelectrolyte-protein synergism; pH-responsive polyelectrolyte/insulin complexes as versatile carriers for targeted protein and drug delivery

Murmiliuk, A.*; Iwase, Hiroki*; Kang, J.-J.*; Mohanakumar, S.*; Appavou, M.-S.*; Wood, K.*; Almsy, L.*; Len, A.*; Schwrzer, K.*; Allgaier, J.*; et al.

Journal of Colloid and Interface Science, 665, p.801 - 813, 2024/07

https://doi.org/10.1016/j.jcis.2024.03.156

The complexity of protein structure limits our ability to predict and tune the properties of the formed nanoparticles. The goal of our research is to elucidate the key triggers of the morphological transition in protein/PE complexes, evaluate their encapsulation efficacy, and assess particle stability by the systematic study of complexes formed by block copolymers with proteins and ionic drugs. We demonstrated that copolymers consisting of PE and neutral hydrophilic block co-assemble with insulin at pH values close to the protein isoelectric point. The insulin arrangement within the particle is controlled by electrostatic forces between protein molecules, and the morphology of the formed particles can be tuned by varying pH and ionic strength.

Anomalous behavior of liquid molecules near solid nanoparticles; Novel interpretation on thermal conductivity enhancement in nanofluids

Hashimoto, Shunsuke*; Yamaguchi, Satoshi*; Harada, Masashi*; Nakajima, Kenji; Kikuchi, Tatsuya*; Oishi, Kazuki*

Journal of Colloid and Interface Science, 638, p.475 - 486, 2023/05

https://doi.org/10.1016/j.jcis.2023.01.101

Recently, it has been reported that anomalous improvement in the thermal conductivity of nanofluid composed of base liquids and dispersed solid nanoparticles, compared to the theoretically predicted value calculated from the particle fraction. Generally, the thermal conductivity values of gases and liquids are dominated by the mean free path of the molecules during translational motion. Herein, we present solid evidence showing the possible contribution of the vibrational behavior of liquid molecules around nanoparticles to increasing these thermal conductivities.

Molecular dynamics simulations of cesium adsorption on illite nanoparticles

Lammers, L.*; Bourg, I. C.*; Okumura, Masahiko; Kolluri, K.*; Sposito, G.*; Machida, Masahiko

Journal of Colloid and Interface Science, 490, p.608 - 620, 2017/03

https://doi.org/10.1016/j.jcis.2016.11.084

no abstracts in English

Recovery of palladium using chemically modified cedar wood powder

Parajuli, D.; Hirota, Koichi

Journal of Colloid and Interface Science, 338(2), p.371 - 375, 2009/10

https://doi.org/10.1016/j.jcis.2009.06.043

Stopped-flow spectroscopy as a simple method for particle size determination

Journal of Colloid and Interface Science, 86(1), p.135 - 143, 1982/00

https://doi.org/10.1016/0021-9797(82)90048-0

no abstracts in English

Radiation-induced polymerization of monomolecular film of octadecyl acrylate at gas-water interface

; ;

Journal of Colloid and Interface Science, 45(3), p.502 - 506, 1973/03

https://doi.org/10.1016/0021-9797(73)90165-3

no abstracts in English

Preparation of monodisperse aerosols of dioctyl phthalate by a new apparatus

Okada, T.; Ishibashi, H.*; Kitani, Susumu

Journal of Colloid and Interface Science, 29(4), p.613 - 616, 1969/04

https://doi.org/10.1016/0021-9797(69)90211-2

no abstracts in English

Preparation of the monodisperse aerosol of sodium chloride

; Shoei Ouchi*

Journal of Colloid and Interface Science, 23(2), p.200 - 202, 1967/00

https://doi.org/10.1016/0021-9797(67)90103-8

no abstracts in English