Results 41 to 50 of about 223,045 (345)

Solid-state conformation of copolymers of ß-benzyl-L-aspartate with L-alanine, L-leucine, L-valine, γ-benzyl-L-glutamate, or ε-carbobenzoxy-L-lysine [PDF]

open access: yes, 1980
The solid-state conformation of copolymers of ß-benzyl-L-aspartate [L-Asp(OBzl)] with L-leucine (L-Leu), L-alanine (L-Ala), L-valine (L-Val), γ-benzyl-L-glutamate [L-Glu(OBzl)], or ε-carbobenzoxy-L-lysine (Cbz-L-Lys) has been studied by ir spectroscopy ...
Anderson, James M.   +3 more
core   +2 more sources

Numerical simulation of conformational variability in biopolymer translocation through wide nanopores [PDF]

open access: yes, 2009
Numerical results on the translocation of long biopolymers through mid-sized and wide pores are presented. The simulations are based on a novel methodology which couples molecular motion to a mesoscopic fluid solvent. Thousands of events of long polymers
Efthimios Kaxiras   +5 more
core   +1 more source

Micellar Drug Delivery Systems Based on Natural Biopolymers

open access: yesPolymers, 2021
The broad diversity of structures and the presence of numerous functional groups available for chemical modifications represent an enormous advantage for the development of safe, non-toxic, and cost-effective micellar drug delivery systems (DDS) based on
L. Atanase
semanticscholar   +1 more source

Extrusion Simulation for the Design of Cereal and Legume Foods

open access: yesFoods, 2022
A 1D global twin-screw extrusion model, implemented in numerical software, Ludovic®, was applied to predict extrusion variables and, therefore, to design various starchy products with targeted structure and properties.
Magdalena Kristiawan   +2 more
doaj   +1 more source

Synthesis and viscosity behavior of poly(γ-p-biphenylmethyl-L-glutamate) in benzene/dichloroacetic acid mixtures, a comparison with poly(γ-benzyl-L-glutamate) [PDF]

open access: yes, 1974
The synthesis of poly(γ-p-biphenylmethyl-L-glutamate), PBPLG, (poly{L-imino-1-[2-(4-biphenylylmethoxycarbonyl)ethyl]-2-oxoethylene}), (1d) is described. The viscosity behavior of this polymer in benzene/dichloroacetic acid mixtures (c=0,2.10 -3 - 1,4.10 -
Bantjes, Adriaan   +4 more
core   +3 more sources

Polysiloxane ionic liquids as good solvents for β-cyclodextrin-polydimethylsiloxane polyrotaxane structures

open access: yesBeilstein Journal of Organic Chemistry, 2012
An ionic liquid based on polydimethylsiloxane with imidazolium salt brushes was synthesized as a good solvent for β-cyclodextrin-polydimethylsiloxane rotaxane.
Narcisa Marangoci   +6 more
doaj   +1 more source

Enhancing the performance of Xanthan gum in water-based mud systems using an environmentally friendly biopolymer [PDF]

open access: yes, 2020
Xanthan gum is commonly used in drilling fluids to provide viscosity, solid suspension, and fluid-loss control. However, it is sensitive to high temperatures and not tolerant of field contaminants. This paper presents an experimental study on the effects
Akpan, EU, Enyi, GC, Nasr, GG
core   +2 more sources

The Central Symbiosis of Molecular Biology: Molecules in Mutualism. [PDF]

open access: yes, 2017
As illustrated by the mitochondrion and the eukaryotic cell, little in biology makes sense except in light of mutualism. Mutualisms are persistent, intimate, and reciprocal exchanges; an organism proficient in obtaining certain benefits confers those on ...
Lanier, Kathryn A   +2 more
core   +2 more sources

Electrochemical Sensor for Tryptophan Determination Based on Trimetallic-CuZnCo-Nanoparticle-Modified Electrodes

open access: yesMolecules, 2023
The superior properties of electrodeposited trimetallic CuZnCo nanoparticles, arising from the synergistic effect of combining the unique features of metallic components, were confirmed using voltametric measurements. The surface morphology and structure
Adina Arvinte   +3 more
doaj   +1 more source

Origin of slow stress relaxation in the cytoskeleton

open access: yes, 2019
Dynamically crosslinked semiflexible biopolymers such as the actin cytoskeleton govern the mechanical behavior of living cells. Semiflexible biopolymers nonlinearly stiffen in response to mechanical loads, whereas the crosslinker dynamics allow for ...
Koenderink, Gijsje H.   +2 more
core   +2 more sources

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