Results 91 to 100 of about 16,152 (240)

Off-equilibrium surface tension in colloidal suspensions

, 2013
We study the fingering instability of the interface between two miscible fluids, a colloidal suspension and its own solvent. The temporal evolution of the interface in a Hele-Shaw cell is found to be governed by the competition between the non-linear ...
Cipelletti, Luca, Dupas, Christelle, Mora, Serge, Truzzolillo, Domenico   +3 more
core   +4 more sources

A Plug‐and‐Play Volume Minimizing Micromixer

Advanced Science, EarlyView.
ABSTRACT Microscale fluid mixing has numerous applications where rapid and efficient mixing is required, including drug discovery, bio‐analysis and point‐of‐care diagnostics. Conventional soft lithography processes, however, make the integration of robust and reliable mixing difficult to implement in practice, especially across different flow rates ...
Kirill Kolesnik, Philipp Segeritz, Daniel J. Scott, David J. Collins   +3 more
wiley   +1 more source

Cellular Snowballing: Cell Adhesion and Migration Drive the Self‐Assembly of Cell‐Microgel Biohybrid Spheroids

Advanced Science, EarlyView.
A new class of biohybrid spheroids is engineered through the self‐assembly of adherent cells and extracellular matrix‐mimetic hydrogel microparticles (microgels). By mimicking a snowballing effect, this approach enables scalable formation of porous, millimeter‐scale spheroids with enhanced cell viability and molecular diffusion.
Zaman Ataie, Sina Kheirabadi, Changhao Li, Aneesh Risbud, Aswathy Sebastian, Istvan Albert, Sulin Zhang, Amir Sheikhi   +7 more
wiley   +1 more source

Single-Cell Microgel Encapsulation Improves the Therapeutic Efficacy of Mesenchymal Stem Cells in Treating Intervertebral Disc Degeneration via Inhibiting Pyroptosis

Research
While mesenchymal stem cell (MSC) shows great potentials in treating intervertebral disc degeneration, most MSC die soon after intradiscal transplantation, resulting in inferior therapeutic efficacy.
Guanrui Huang, Haotian Shen, Kaiwang Xu, Yifan Shen, Jiale Jin, Guangyu Chu, Hongyuan Xing, Zhiyun Feng, Yue Wang   +8 more
doaj   +1 more source

Counterion Penetration and Effective Electrostatic Interactions in Solutions of Polyelectrolyte Stars and Microgels

, 2003
Counterion distributions and effective electrostatic interactions between spherical macroions in polyelectrolyte solutions are calculated via second-order perturbation (linear response) theory.
A. Diehl, A. Jusufi, A. Jusufi, A. R. Denton, A.A. Kornyshev, A.A. Kornyshev, A.A. Kornyshev, A.A. Kornyshev, A.R. Denton, A.R. Denton, A.V. Dobrynin, A.V. Dobrynin, A.V. Lyulin, B.-Y. Ha, B.V. Derjaguin, C.N. Likos, C.N. Likos, E. Canessa, F. Gröhn, F.J. Solis, H. Graf, H. Schiessel, H.M. Harreis, J.P. Hansen, L. Belloni, M.J. Grimson, M.J. Stevens, P. Guenoun, P. Pincus, P.B. Warren, R. van Roij, R. van Roij, U. Micka, X. Guo   +33 more
core   +1 more source

Quantifying the Reversible Association of Thermosensitive Nanoparticles [PDF]

, 2011
Under many conditions, biomolecules and nanoparticles associate by means of attractive bonds, due to hydrophobic attraction. Extracting the microscopic association or dissociation rates from experimental data is complicated by the dissociation events and
A. M. Morris, Alessio Zaccone, Benjamin Béri, J. N. Israelachvili, Jerome J. Crassous, Matthias Ballauff, R. Kubo, T. Cellmer, W. B. Russel   +8 more
core   +3 more sources

Microgel PAINT – nanoscopic polarity imaging of adaptive microgels without covalent labelling

Chemical Science, 2019
The 3D structure and the local environment of stimuli-responsive microgels were investigated with the superresolution fluorescence microscopy method PAINT using Nile Red as solvatochromic dye.
Purohit, Ashvini, Centeno, Silvia P., Wypysek, Sarah K., Richtering, Walter, Wöll, Dominik   +4 more
openaire   +4 more sources

Bifunctional Artificial Enzymes‐Loaded Microgels With LOX‐ and CAT‐Like Activities for Metabolic Reprogramming and Scarless Wound Repair

Advanced Science, EarlyView.
A bifunctional lactate oxidase‐like and catalase‐like artificial enzyme (Metazyme) is integrated into a rod‐shaped microgel (MetaRgel) to enable cascade lactate oxidation and oxygen regeneration. By reprogramming the wound metabolic microenvironment, MetaRgel alleviates excessive lactate accumulation, oxidative stress, hypoxia, and inflammation ...
Yongyuan Kang, Pai Peng, Liang Song, Qiaoxuan Wang, Zilong Zhong, Dongchao Qiu, Yunfan Liu, Kefei Zhao, Xiaofei Dong, Changyou Gao   +9 more
wiley   +1 more source

Adhesion‐Driven Removal of Microplastics From Aquatic Systems by Using Microgel Glues

Advanced Science, EarlyView.
Soft polymeric microgels function as “glues” that aggregate diverse microplastics through multivalent adhesion, promoting their interfacial deposition and co‐precipitation for efficient removal from water. Remarkably, this approach remains effective even for nanoscale plastic particles as small as 50 nm.
Jinmeng Zhang, Jie Xu, Wen Chen, Yanping Chen, Zixin Pan, Weitai Wu   +5 more
wiley   +1 more source

Colloidal Microgels - Untapped Potential? [PDF]

Journal of Nanomedicine & Nanotechnology, 2016
Colloidal microgels are discrete cross-linked polymeric nanoparticles that may be prepared from a range of different monomer types. These monomers may confer dispersion sensitivity to a wide range of stimuli including temperature, pH, salinity and the addition of co-solvents.
openaire   +1 more source