Physics in ordered and disordered colloidal matter composed of poly (N-isopropylacrylamide) microgel particles

PJ Yunker, K Chen, MD Gratale, MA Lohr… - Reports on Progress …, 2014 - iopscience.iop.org
This review collects and describes experiments that employ colloidal suspensions to probe
physics in ordered and disordered solids and related complex fluids. The unifying feature of …

Responsive hydrogel colloids: Structure, interactions, phase behavior, and equilibrium and nonequilibrium transitions of microgel dispersions

J Brijitta, P Schurtenberger - Current opinion in colloid & interface science, 2019 - Elsevier
Soft and responsive colloids based on polymer hydrogels have moved into the focus of the
colloid community. This review gives a brief overview of the recent literature on the structure …

Short-and long-time diffusion and dynamic scaling in suspensions of charged colloidal particles

AJ Banchio, M Heinen, P Holmqvist… - The Journal of chemical …, 2018 - pubs.aip.org
We report on a comprehensive theory-simulation-experimental study of collective and self-
diffusion in concentrated suspensions of charge-stabilized colloidal spheres. In theory and …

Microgel-hydrogel composite photonic crystals to monitor and extract uranyl ions in aqueous solutions

RG Joshi, DK Gupta, P Amesh, PK Parida… - Microporous And …, 2021 - Elsevier
We fabricate microgel-hydrogel composite photonic crystals and investigate their
spectroscopic response to uranyl ion (UO 2 2+) in aqueous solution. Upon adsorption of UO …

Sub-diffusive dynamics and two-step yielding in dense thermo-responsive microgel glasses

RG Joshi, BVR Tata - Colloid and Polymer Science, 2017 - Springer
We have prepared dense colloidal suspensions of thermo-responsive poly (N-
isopropylacrylamide)(PNIPAM) microgel particles with different volume fractions by …

FCC-HCP coexistence in dense thermo-responsive microgel crystals

D Karthickeyan, RG Joshi, BVR Tata - The Journal of Chemical …, 2017 - pubs.aip.org
Analogous to hard-sphere suspensions, monodisperse thermo-responsive poly (N-isopropyl
acrylamide)(PNIPAM) microgel particles beyond a volume fraction (ϕ) of 0.5 freeze into face …

Effect of entanglements on temperature response of gel immobilized microgel photonic crystals

RG Joshi, D Karthickeyan, DK Gupta… - Colloids and Surfaces A …, 2018 - Elsevier
We report here, an evidence of entanglements between polymer chains of thermo-
responsive microgels with the immobilizing hydrogel, by studying the temperature …

Temperature-driven volume phase transition of a single stimuli-responsive microgel particle using optical tweezers

DK Gupta, D Karthickeyan, BVR Tata… - Colloid and Polymer …, 2016 - Springer
Abstract Poly (N-isopropylacrylamide)(PNIPAM)-based microgels respond to temperature
and exhibits a transition from swollen to deswollen state upon variation of temperature …

[PDF][PDF] Optical and rheological studies on weak gel-sol transition in aqueous solutions of poly (N-isopropylacrylamide)-block-polystyrene

SS Prasath, J Brijitta, BVR Tata, RG Joshi… - Express Polym …, 2017 - academia.edu
The optical and rheological properties of aqueous solutions of block copolymer composed of
low molecular weight poly (N-isopropylacrylamide)-b-polystyrene are studied as a function …

Identification of volume phase transition of a single microgel particle using optical tweezers

D Karthickeyan, DK Gupta, BVR Tata - Journal of Optics, 2016 - iopscience.iop.org
Poly (N-isopropyl acrylamide-co-acrylic acid)(PNIPAM-co-Aac) microgel particles are pH
responsive and exhibit volume phase transition (VPT) upon variation of pH. Dynamic light …