نتایج جستجو برای: tetraethylenepentamine

تعداد نتایج: 89  

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2012
Xufang Duan Eric Block Zhen Li Timothy Connelly Jian Zhang Zhimin Huang Xubo Su Yi Pan Lifang Wu Qiuyi Chi Siji Thomas Shaozhong Zhang Minghong Ma Hiroaki Matsunami Guo-Qiang Chen Hanyi Zhuang

Odorant receptors (ORs) in olfactory sensory neurons (OSNs) mediate detection of volatile odorants. Divalent sulfur compounds, such as thiols and thioethers, are extremely potent odorants. We identify a mouse OR, MOR244-3, robustly responding to (methylthio)methanethiol (MeSCH(2)SH; MTMT) in heterologous cells. Found specifically in male mouse urine, strong-smelling MTMT [human threshold 100 pa...

Journal: :ACS Environmental Au 2023

Rising CO2 emissions are responsible for increasing global temperatures causing climate change. Significant efforts underway to develop amine-based sorbents directly capture from air (called direct (DAC)) combat the effects of However, sorbents’ performances have usually been evaluated at ambient (25 °C) or higher, most often under dry conditions. A significant portion natural environment where...

Journal: :Journal of Physical Chemistry C 2023

Molecular and oligomeric amines supported in porous oxide supports are a promising class of CO2 sorbent materials studied for removal from diverse streams such as flue gas ambient air. Among the various investigated, low molecular weight, hyperbranched poly(ethyleneimine) (PEI), tetraethylenepentamine (TEPA) among most extensively studied. While macroscopic structure–performance relationships r...

Journal: :Sustainable chemistry 2023

This work deals with the development of non-isocyanate polyurethane (NIPU) composites an aniline oligomer, viz., tetraniline (TANI) for corrosion-resistant coatings. Firstly, epoxidizedsoyabean oil was converted to carbonated by inserting CO2 under high temperature and pressure into epoxy ring. Then, varying weights oligoaniline—0.5, 1, 2 4 wt % (based on weight CSBO)—were added CSBO cured tetr...

Journal: :The Journal of pharmacology and experimental therapeutics 2012
Liying Qiu Xueqin Ding Zhen Zhang Y James Kang

Cobalt inhibits prolyl hydroxylases, leading to the accumulation of hypoxia-inducible factor-1α (HIF-1α) and a concomitant increase in the transcriptional activity of HIF-1. Therefore, cobalt has been under development as a drug for activating HIF-1 under some disease conditions. However, it has been shown that ischemic conditions resulted in the loss of copper, and the activation of HIF-1 woul...

Journal: :Experimental hematology 2005
Toni Peled Elina Glukhman Nira Hasson Sophie Adi Harel Assor Dima Yudin Chana Landor Julie Mandel Efrat Landau Eugenia Prus Arnon Nagler Eitan Fibach

OBJECTIVES We have demonstrated epigenetic modulation of CD34(+) cell differentiation by the high-affinity copper (Cu) chelator tetraethylenepentamine (TEPA). TEPA slowed down the rate of CD34(+) cell differentiation and increased their engraftability in SCID mice. TEPA biological activity was attributed to its effect on cellular Cu levels as (a) treatment with TEPA resulted in reduction of cel...

2012
Chakravartula S Srikanth Steven S C Chuang

Oxidative degradation characteristics of silica-supported amine sorbents with varying amounts of tetraethylenepentamine (TEPA) and polyethylene glycol (PEG; P(200) or P(600) represents PEG with molecular weights of 200 or 600) have been studied by IR and NMR spectroscopy. Thermal treatment of the sorbents and liquid TEPA at 100 °C for 12 h changed their color from white to yellow. The CO(2) cap...

Journal: :The journal of physical chemistry. B 2015
Solmaz Pirouz Yulin Wang J Michael Chong Jean Duhamel

The secondary amines found in b-PIBSI dispersants prepared by attaching two polyisobutylene chains to a polyamine core via two succinimide moieties were reacted with ethylene carbonate (EC). The reaction generated urethane bonds on the polyamine core to yield the modified b-PIBSI dispersants (Mb-PIBSI). Five dispersants were prepared by reacting 2 molar equivalent (meq) of polyisobutylene termi...

2015
Paola Di Bonito Linda Petrone Gabriele Casini Iolanda Francolini Maria Grazia Ammendolia Luisa Accardi Antonella Piozzi Lucio D’Ilario Andrea Martinelli

BACKGROUND Poly(L-lactide) (PLLA) is a biodegradable polymer currently used in many biomedical applications, including the production of resorbable surgical devices, porous scaffolds for tissue engineering, nanoparticles and microparticles for the controlled release of drugs or antigens. The surfaces of lamellar PLLA single crystals (PLLAsc) were provided with amino groups by reaction with a mu...

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