Results 61 to 70 of about 102,443 (368)

Dextrans in Aqueous Solution. Experimental Review on Intrinsic Viscosity Measurements and Temperature Effect [PDF]

open access: yes, 2014
The study of biopolymers as dextran in aqueous solution, is effectively determined by intrinsic viscosity [η] measurements at different temperatures. Molecular weight (Mv) and hydrodynamic properties can be calculated from there.
Masuelli, Martin Alberto
core   +2 more sources

Smart, Bio‐Inspired Polymers and Bio‐Based Molecules Modified by Zwitterionic Motifs to Design Next‐Generation Materials for Medical Applications

open access: yesAdvanced Functional Materials, EarlyView.
Bio‐based and (semi‐)synthetic zwitterion‐modified novel materials and fully synthetic next‐generation alternatives show the importance of material design for different biomedical applications. The zwitterionic character affects the physiochemical behavior of the material and deepens the understanding of chemical interaction mechanisms within the ...
Theresa M. Lutz   +3 more
wiley   +1 more source

COMPARISON OF THE EFFICACY OF HYDROXYPROPYL METHYLCELLULOSE/ DEXTRAN, SODIUM HYALURONATE AND POLYETHYLENE GLYCOL/PROPYLENE GLYCOL BASED COMMERCIAL ARTIFICIAL TEAR PRODUCTS USING THE NONINVASIVE TEAR FILM BREAKUP TIME

open access: yesPakistan Armed Forces Medical Journal, 2020
Objective: To compare the efficacy of sodium hyaluronate, hydroxypropyl methylcellulose/dextran and polypropylene/polyethylene glycol based commercial artificial tear products using the noninvasive tear film breakup time.
Faisal Aziz Khan   +2 more
doaj  

Experimental study of the effects of hypochlorite on polysulfone membrane properties [PDF]

open access: yes, 2006
Although chemical solutions are widely employed to clean membranes, they can also be responsible for changes in membrane properties. The two major drawbacks are then either the functional properties of the membrane gradually change, so the production can
Aimar, Pierre   +2 more
core   +2 more sources

A Vascular Microphysiological Model of Lung Fibrosis Reveals That Myofibroblasts and IPF Patient‐Derived Fibroblasts Impair Angiogenesis and Vasculogenesis

open access: yesAdvanced Functional Materials, EarlyView.
A microphysiological lung fibrosis model recapitulates myofibroblast–vascular interactions. Induced myofibroblasts and patient‐derived IPF fibroblasts impair angiogenesis and increase vascular permeability via TGF‐β1–driven signaling. Pharmacological interventions with SB 431542 and VEGF supplementation restore vascular morphology and barrier function.
Elena Cambria   +7 more
wiley   +1 more source

Investigation of the spatiotemporal responses of nanoparticles in tumor tissues with a small-scale mathematical model. [PDF]

open access: yesPLoS ONE, 2013
The transport and accumulation of anticancer nanodrugs in tumor tissues are affected by many factors including particle properties, vascular density and leakiness, and interstitial diffusivity.
Cheng-Ying Chou   +4 more
doaj   +1 more source

The C-Terminal Domain of Liquorilactobacillus nagelii Dextransucrase Mediates the Production of Larger Dextrans Compared to Liquorilactobacillus hordei

open access: yesGels, 2022
Dextransucrases released by certain lactic acid bacteria form glucose polymers with predominantly α-1,6-linkages and may be exploited biotechnologically for the tailored production of polysaccharides with application potential.
Julia Bechtner   +4 more
doaj   +1 more source

Specific modulation of airway epithelial tight junctions by apical application of an occludin peptide [PDF]

open access: yes, 2006
Tight junctions are directly involved in regulating the passage of ions and macromolecules (gate functions) in epithelial and endothelial cells. The modulation of these gate functions to transiently regulate the paracellular permeability of large solutes
Barozzi, Nadia   +4 more
core   +1 more source

Tailoring the Properties of Functional Materials With N‐Oxides

open access: yesAdvanced Functional Materials, EarlyView.
The properties of materials bearing N‐oxide groups are often dominated by the polar N+─O− bond. It provides hydrophilicity, selective ion‐binding, electric conductivity, or antifouling properties. Many of the underlying mechanisms have only recently been discovered, and the interest in N‐oxide materials is rapidly growing.
Timo Friedrich   +5 more
wiley   +1 more source

Upconversion Nanoparticles Embedded Photonic Contact Lens for Transepithelial Corneal Crosslinking Using Hyaluronate – Riboflavin Conjugate

open access: yesAdvanced Functional Materials, EarlyView.
A minimally invasive, transepithelial corneal cross‐linking (TE‐CXL) approach is presented using upconversion nanoparticles (UCNPs)‐loaded contact lenses (UCLs), after topical delivery of hyaluronate–riboflavin conjugates. The NIR‐to‐UV/blue light conversion by UCNPs in a UCL can activate riboflavin for TE‐CXL, resulting in the biomechanical strength ...
Gibum Lee   +8 more
wiley   +1 more source

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