Results 21 to 30 of about 122,896 (296)

Low viscosity versus high viscosity PMMA bone cement for total joint arthroplasty: Influence of glass transition temperature, residual monomer content, transmittance of chemical functional groups, and crystallinity index on quasi-static flexural strength

open access: yesForces in Mechanics, 2023
The commercially available low viscosity (LV) PMMA bone cement has higher mechanical properties than high viscosity (HV) PMMA bone cement. However, the influence of glass transition temperature, residual monomer content, transmittance of chemical ...
Sonalal Prasad Chaurasiya, Rajesh Ghosh
doaj   +1 more source

Evaluation of Residual Monomers Eluted from Pediatric Dental Restorative Materials [PDF]

open access: yesBioMed Research International, 2021
Unreacted monomers eluted from resin‐based restorative materials have been considered a reason of local and systemic adverse reactions. This study was designed to determine the effect of finishing and polishing procedures on the elution of Bis‐GMA, TEGDMA, UDMA, and HEMA monomers from compomer and bulk‐fill composite resins.
Tugba Bezgin, Ceren Cimen, Nurhan Ozalp
openaire   +2 more sources

Study on Recrystallization Process of Poly(DL-lactide)/Poly(ethylene glycol) Diblock Copolymer [PDF]

open access: yesMATEC Web of Conferences, 2022
Poly (DL-lactide)/Poly (ethylene glycol) diblock copolymer is successfully synthesized with mPEG and DL-LA as main raw materials, and the residual monomers of the polymer were removed by recrystallization.
Chen Xiaoqi   +7 more
doaj   +1 more source

An antibody raised against a pathogenic serpin variant induces mutant-like behaviour in the wild-type protein. [PDF]

open access: yes, 2015
A monoclonal antibody (mAb) that binds to a transient intermediate may act as a catalyst for the corresponding reaction; here we show this principle can extend on a macro-molecular scale to the induction of mutant-like oligomerisation in a wild-type ...
Faull, SV   +7 more
core   +1 more source

Proteolytic removal of three C-terminal residues of actin alters the monomer-monomer interactions [PDF]

open access: yesBiochemical Journal, 1993
Homogeneous preparations of actin devoid of the three C-terminal residues were obtained by digestion of G-actin with trypsin after blocking proteolysis at other sites by substitution of Mg2+ for the tightly bound Ca2+. Removal of the C-terminal residues resulted in the following: an enhancement of the Mg(2+)-induced hydrolysis of ATP in low-ionic ...
M, Mossakowska   +3 more
openaire   +2 more sources

Statistical Geometry of Packing Defects of Lattice Chain Polymer from Enumeration and Sequential Monte Carlo Method [PDF]

open access: yes, 2002
Voids exist in proteins as packing defects and are often associated with protein functions. We study the statistical geometry of voids in two-dimensional lattice chain polymers.
Jie Liang   +4 more
core   +2 more sources

The Effect Of Addition Of Castor Oil, Grape Seed Oil And Fenugreek Oil On Some Properties Of Cold Cure Acrylic Resin Denture Base Material. [PDF]

open access: yesAl-Rafidain Dental Journal, 2015
Aims: The aim of the study is to evaluate the effect of addition of some natural and beneficial oils (Castor oil, Grape seed oil and Fenufreek oil) in different concentrations (1.5%,2%,2.5%) on some properties (chemical structure, residual monomer ...
Amer A. Taqa , Saja A. A, Myada M.Ali
doaj   +1 more source

Diffusion of residual monomer in polymer resins. [PDF]

open access: yesEnvironmental Health Perspectives, 1976
A simplified mathematical model which made use of Fick's laws of diffusion written in spherical coordinates was developed to describe the rate of diffusion of residual monomers from polymer resins. The properties of the monomer-polymer system which influenced the amount of monomer remaining in the polymer as a function of time were the diffusivity and ...
openaire   +2 more sources

Effect of Acrylic Polymerization on Cytotoxicity, Residual Monomer Content and Mechanical Properties

open access: yesDental Hypotheses, 2020
Introduction: The aim of this study was to test and find connection between three different parameters of acrylic resins: cytotoxicity, residual monomer content in the material and flexural strength.
Zbigniew Raszewski
doaj   +1 more source

Interfacial chemical oxidative synthesis of multifunctional polyfluoranthene. [PDF]

open access: yes, 2015
A novel polyfluoranthene (PFA) exhibiting strong visual fluorescence emission, a highly amplified quenching effect, and widely controllable electrical conductivity is synthesized by the direct cationic oxidative polymerization of fluoranthene in a ...
Huang, Mei-Rong   +3 more
core   +1 more source

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