Results 31 to 40 of about 57,907 (324)

Permeability and chemical analysis of aromatic polyamide based membranes exposed to sodium hypochlorite [PDF]

open access: yes, 2011
In this study, a cross-linked aromatic polyamide based reverse osmosis membrane was exposed to variable sodium hypochlorite ageing conditions (free chlorine concentration, solution pH) and the resulting evolutions of membrane surface chemical and ...
Aimar, Pierre   +4 more
core   +1 more source

Numerical simulation of heat transfer in the selective laser sintering process of Polyamide12

open access: yesEnergy Reports, 2021
Selective laser sintering (SLS) process is the most perfect seven three-dimensional printing processes that produces three-dimensional parts from a polyamide or metal powders in stratified, the need of this process is in all different fields, the medical
Hanane Yaagoubi   +2 more
doaj  

Multifunctional glass fiber/polyamide composites with thermal energy storage/release capability

open access: yeseXPRESS Polymer Letters, 2018
Thermoplastic composite laminates with thermal energy storage (TES) capability were prepared by combining a glass fabric, a polyamide 12 (PA12) matrix and two different phase change materials (PCMs), i.e.
G. Fredi, A. Dorigato, A. Pegoretti
doaj   +1 more source

Multi Jet Fusion of surface-modified ZnO nanorod–reinforced PA12 nanocomposites

open access: yesVirtual and Physical Prototyping, 2023
Metal oxide nanorods exhibit promising potential as reinforcement fillers in various polymer matrices, but their application in the Multi Jet Fusion (MJF) technique is rarely reported.
Ran An   +5 more
doaj   +1 more source

Modifications at the C-Terminus To Improve Pyrrole−Imidazole Polyamide Activity in Cell Culture [PDF]

open access: yes, 2009
Pyrrole−imidazole (Py-Im) hairpin polyamides are a class of small molecule DNA minor groove binding compounds that have been shown to modulate endogenous gene expression in cell culture.
Dervan, Peter B., Jacobs, Claire S.
core   +2 more sources

The influence of printing orientation on the flexural strength of PA 12 specimens produced by SLS [PDF]

open access: yesScience of Sintering
This article aims to investigate the mechanical characteristics of specimens fabricated using Selective Laser Sintering technology. The research covers flexural specimens, produced by PA12 materials.
Jevtić Ivana   +6 more
doaj   +1 more source

Enhancing the cellular uptake of Py–Im polyamides through next-generation aryl turns [PDF]

open access: yes, 2012
Pyrrole–imidazole (Py–Im) hairpin polyamides are a class of programmable, sequence-specific DNA binding oligomers capable of disrupting protein–DNA interactions and modulating gene expression in living cells.
Baird   +54 more
core   +2 more sources

Preparation of polyamide 12 powder for additive manufacturing applications via thermally induced phase separation

open access: yese-Polymers, 2022
Spherical polyamide 12 (PA12) powder for selective laser sintering (SLS) was prepared by thermally induced phase separation (TIPS) method. It was authenticated that the mixed solvent can regulate the liquid–liquid phase separation (LLPS) process by ...
Su Dandan   +4 more
doaj   +1 more source

Inhibition of RNA polymerase II transcription in human cells by synthetic DNA-binding ligands [PDF]

open access: yes, 1998
Sequence-specific DNA-binding small molecules that can permeate human cells potentially could regulate transcription of specific genes. Multiple cellular DNA-binding transcription factors are required by HIV type 1 for RNA synthesis.
Baird, Eldon E.   +6 more
core   +1 more source

Molecular dynamics simulations of the interactions of potential foulant molecules and a reverse osmosis membrane [PDF]

open access: yes, 2011
Reverse osmosis (RO) is increasingly one of the most common technologies for desalination worldwide. However, fouling of the membranes used in the RO process remains one of the main challenges. In order to better understand the molecular basis of fouling
Gale, Julian D., Hughes, Zak E.
core   +1 more source

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