نتایج جستجو برای: polyamide membrane

تعداد نتایج: 391937  

Journal: :Journal of Membrane Science 2021

Biomimetic forward osmosis membranes with a polyamide-based active layer containing polymersomes incorporating aquaporins were exposed to various free chlorine doses (free concentration x exposure time) and pH. Membrane chlorination was found decrease the apolar/polar balance of membrane surface energy increase its negative charge density. A substantial modification hydrogen-bond network in als...

Journal: :Cancer research 2017
Alexis A Kurmis Fei Yang Timothy R Welch Nicholas G Nickols Peter B Dervan

The LREX' prostate cancer model is resistant to the antiandrogen enzalutamide via activation of an alternative nuclear hormone receptor, glucocorticoid receptor (GR), which has similar DNA-binding specificity to the androgen receptor (AR). Small molecules that target DNA to interfere with protein-DNA interactions may retain activity against enzalutamide-resistant prostate cancers where ligand-b...

Journal: :Journal of diabetes science and technology 2011
Andrey Sokolov Bernt Christian Hellerud John D Lambris Erik A Johannessen Tom Eirik Mollnes

BACKGROUND Continuous monitoring of glucose by implantable microfabricated devices offers key advantages over current transcutaneous glucose sensors that limit usability due to their obtrusive nature and risk of infection. A successful sensory implant should be biocompatible and retain long-lasting function. Polymorphonuclear leukocytes (PMN) play a key role in the inflammatory system by releas...

2016
Roodabeh Koodaryan Ali Hafezeqoran

PURPOSE Polyamide polymers do not provide sufficient bond strength to auto-polymerized resins for repairing fractured denture or replacing dislodged denture teeth. Limited treatment methods have been developed to improve the bond strength between auto-polymerized reline resins and polyamide denture base materials. The objective of the present study was to evaluate the effect of surface modifica...

Journal: :Nucleic acids research 2002
Melanie P. Gygi Mark D. Ferguson Heather C. Mefford Kevin P. Lund Christine O'Day Peiwen Zhou Cynthia Friedman Ger van den Engh Mark L. Stolowitz Barbara J. Trask

In this paper, we demonstrate the use of synthetic polyamide probes to fluorescently label heterochromatic regions on human chromosomes for discrimination in cytogenetic preparations and by flow cytometry. Polyamides bind to the minor groove of DNA in a sequence-specific manner. Unlike conventional sequence-specific DNA or RNA probes, polyamides can recognize their target sequence without the n...

Journal: :Chemistry & biology 1996
J W Trauger E E Baird P B Dervan

BACKGROUND Three-ring polyamides containing N-methylimidazole and N-methylpyrrole amino acids bind sequence-specifically to double-helical DNA by forming side-by-side complexes in the minor groove. Simple pairing rules relate the amino-acid sequence of a pyrrole-imidazole polyamide to its expected DNA target site, and polyamides that target a wide variety of DNA sequences have been synthesized....

Journal: :Bioscience, biotechnology, and biochemistry 2007
Masahiko Yamamoto Changjin Zhu Lui Yi Zheng Rong Yoshie Miura Minoru Izumi Shuhei Nakajima Ken-Ichi Tanamoto Sakayu Shimizu Naomichi Baba

Novel fatty acyl and phospholipid derivatives of pyrrole polyamide were synthesized. Their cytotoxicity against a cancer cell line of MT-4 cells and those infected by human immunodeficiency virus (HIV) was examined. Although no anti-HIV activity was found, their cytotoxicitty against the cancer cells was significantly enhanced by introducing a lipophilic group into the pyrrole polyamide.

Journal: :Journal of oral science 2010
Menaka A Abuzar Suman Bellur Nancy Duong Billy B Kim Priscilla Lu Nick Palfreyman Dharshan Surendran Vinh T Tran

Polyamide denture base materials are more flexible than the commonly used poly (methyl methacrylate) (PMMA). However polishability of polyamides has not been examined adequately. This study investigated the surface roughness (Ra) and clinical acceptability of samples of a polyamide denture base material and PMMA fabricated by injection moulding and traditional heat processing systems, respectiv...

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