Direct measurement of electrostatic interactions between poly(methyl methacrylate) microspheres with optical laser tweezers

Soft Matter ◽  
2019 ◽  
Vol 15 (40) ◽  
pp. 8051-8058 ◽  
Author(s):  
Kyu Hwan Choi ◽  
Dong Woo Kang ◽  
Kyung Hak Kim ◽  
Jiwon Kim ◽  
Youngbok Lee ◽  
...  
Keyword(s):  
Methyl Methacrylate ◽  
Direct Measurement ◽  
Electrostatic Interactions ◽  
Laser Tweezers ◽  
Poly Methyl Methacrylate ◽  
Repulsive Forces ◽  
Pmma Particles ◽  
Optical Laser

Strong electrostatic repulsive forces between PMMA particles in CHB/decane mixtures were directly measured with optical laser tweezers.

scholarly journals Bioadhesion of various proteins on random, diblock and triblock copolymer surfaces and the effect of pH conditions

2010 ◽  
Vol 8 (58) ◽  
pp. 630-640 ◽  
Author(s):  
Manuel L. B. Palacio ◽  
Scott R. Schricker ◽  
Bharat Bhushan
Keyword(s):  
Block Copolymers ◽  
Methyl Methacrylate ◽  
Protein Interactions ◽  
Electrostatic Interactions ◽  
Chemical Compositions ◽  
Poly Methyl Methacrylate ◽  
Force Microscopy ◽  
Atomic Force ◽  
Ph Conditions ◽  
Adhesive Interactions

The adhesive interactions of block copolymers composed of poly(methyl methacrylate) (PMMA)/poly(acrylic acid) (PAA) and poly(methyl methacrylate)/poly(2-hydroxyethyl methacrylate) (PHEMA) with the proteins fibronectin, bovine serum albumin and collagen were studied by atomic force microscopy. Adhesion experiments were performed both at physiological pH and at a slightly more acidic condition (pH 6.2) to model polymer–protein interactions under inflammatory or infectious conditions. The PMMA/PAA block copolymers were found to be more sensitive to the buffer environment than PMMA/PHEMA owing to electrostatic interactions between the ionized acrylate groups and the proteins. It was found that random, diblock and triblock copolymers exhibit distinct adhesion profiles although their chemical compositions are identical. This implies that biomaterial nanomorphology can be used to control protein–polymer interactions and potentially cell adhesion.

Synthesis of micrometer-sized poly(methyl methacrylate) particles by microsuspension iodine transfer polymerization (ms ITP)

RSC Advances ◽  
2016 ◽  
Vol 6 (97) ◽  
pp. 95062-95066 ◽  
Author(s):  
P. Chaiyasat ◽  
S. Namwong ◽  
M. Okubo ◽  
A. Chaiyasat
Keyword(s):  
Methyl Methacrylate ◽  
Chain Transfer ◽  
Chain Transfer Agent ◽  
Poly Methyl Methacrylate ◽  
Iodine Transfer ◽  
A Chain ◽  
First Time ◽  
Pmma Particles ◽  
By Products

Micrometer-sized poly(methyl methacrylate) (PMMA) particles were successfully prepared without submicrometer-sized by-products for the first time by applying microsuspension iodine transfer polymerization with iodoform as a chain transfer agent.

Direct Measurement of Molecular Weight and Grafting Density by Controlled and Quantitative Degrafting of Surface-Anchored Poly(methyl methacrylate)

2015 ◽  
Vol 4 (2) ◽  
pp. 251-254 ◽  
Author(s):  
Rohan R. Patil ◽  
Salomon Turgman-Cohen ◽  
Jiří Šrogl ◽  
Douglas Kiserow ◽  
Jan Genzer
Keyword(s):  
Molecular Weight ◽  
Methyl Methacrylate ◽  
Direct Measurement ◽  
Poly Methyl Methacrylate ◽  
Grafting Density
Sign in / Sign up

Export Citation Format

Share Document