Results 31 to 40 of about 168,330 (260)

Fabrication and function of polymer membranes

open access: yesChemistry Teacher International, 2021
The paper gives an introduction to membrane science and technology, an area of research of high significance for the development of a sustainable life for human beings.
Abetz Volker   +2 more
doaj   +1 more source

Diclofenac Salts, VIII. Effect of the Counterions on the Permeation through Porcine Membrane from Aqueous Saturated Solutions

open access: yesPharmaceutics, 2012
The following bases: monoethylamine (EtA), diethylamine (DEtA), triethylamine (TEtA), monoethanolamine (MEA), diethanolamine (DEA), triethanolamine (TEA), pyrrolidine (Py), piperidine (Pp), morpholine (M), piperazine (Pz) and their N-2-hydroxyethyl (HE ...
Cristina Cavallari   +3 more
doaj   +1 more source

Design of a nanostructured mucoadhesive system containing curcumin for buccal application: from physicochemical to biological aspects

open access: yesBeilstein Journal of Nanotechnology, 2019
Mucoadhesive nanostructured systems comprising poloxamer 407 and Carbopol 974P® have already demonstrated good mucoadhesion, as well as improved mechanical and rheological properties.
Sabrina Barbosa de Souza Ferreira   +10 more
doaj   +1 more source

Vapour permeation modelling

open access: yes, 2015
In this chapter, we present and explain the most powerful approaches currently available for the modelling of vapour permeation in membranes, focusing the attention on polymeric and mixed matrix membranes and on the solution-diffusion transport mechanism.
M. Giacinti Baschetti   +3 more
core   +1 more source

Permeation model and experimental investigation of mixed conducting membranes

open access: yes, 2012
Permeation model and experimental investigation of mixed conducting ...
朱雪峰   +4 more
core   +2 more sources

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

open access: yesFEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa   +2 more
wiley   +1 more source

Effectiveness of polymeric gloves in radioprotection against contamination in nuclear medicine

open access: yesBrazilian Journal of Radiation Sciences, 2023
When handling unsealed radioactive sources, radiological protection attention must be taken to avoid unnecessary exposure and radioactive contaminations, and an important and necessary practice to prevent such contaminations is the use of gloves when ...
Leonardo Pessoa da Silva   +4 more
doaj   +1 more source

From junk to function — How weak selection in eukaryotes builds new parts and drives genomic complexity

open access: yesFEBS Letters, EarlyView.
How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley   +1 more source

TEER of HNEC monolayer before permeation, after permeation, and after 24 h.

open access: yes, 2014
Date are expressed as mean ± SD (n = 3 ...
Jie Bai (28269)   +7 more
core   +1 more source

Chiral separation of chloroalkanes with the chromatographic column onboard Martian rovers

open access: yesFEBS Letters, EarlyView.
Computer image of the Rosalind Franklin Rover of ESA's ExoMars mission. ExoMars is scheduled to land on planet Mars in Oxia Planum in 2029. This area represents an interesting spot to look for biosignatures. Investigations of ExoMars include measurement on molecular chirality. We show that chiral chloroalkanes, that have been identified on Mars, can be
Asma Merzougui   +4 more
wiley   +1 more source

Home - About - Disclaimer - Privacy