نتایج جستجو برای: oxidative poly

تعداد نتایج: 207367  

Journal: :Comparative biochemistry and physiology. Part B, Biochemistry & molecular biology 2005
Helga Guderley Nigel Turner Paul L Else A J Hulbert

We studied the molecular composition of muscle mitochondria to evaluate whether the contents of cytochromes or adenine nucleotide translocase (ANT) or phospholipid acyl compositions reflect differences in mitochondrial oxidative capacities. We isolated mitochondria from three vertebrates of similar size and preferred temperature, the rat (Rattus norvegicus), the cane toad (Bufo marinus) and the...

Schiff base sal-2,5-Clan = 2-(2,5-dichlorobenzylideneamino)phenol used as a new precursor for preparation of poly-2-(2,5-dichlorobenzylideneamino)phenol (PDCBAP). In an aqueous alkaline medium, NaOCl oxidant is capable of oxidative poly-condensation reaction (OP). Both sal-2,5-Clan and PDCBAP were characterized by solubility tests, FT-IR, 1H-NMR spectroscopy and TG-DTA studies. FT-IR and 1H-NMR...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز 1352

اکسیدهای پلی وینیل پیریدین poly (vinylpyridine n-oxides) قبلا" ساخته و مورد مطالعه قرار گرفته اند. مطالعات نشان دهنده فعال بودن این نوع بیوپلی مرها در مقابل بیماری (silicosis) بوده است . در این کار تحقیقی برای پیشبرد مطالعات در مورد بیوپلی مرهای جدید ضد (silicosis) اکسید وینیل پیریمیدین poly (4-vinylpyrimedine n-oxide)(xiv) طی چندین مرحله واکنش ساخته و مطالعه شده است . منحنی تغییرات ویسکوزیته ن...

Journal: :JCI insight 2016
Shunji Nakatake Yusuke Murakami Yasuhiro Ikeda Noriko Morioka Takashi Tachibana Kohta Fujiwara Noriko Yoshida Shoji Notomi Toshio Hisatomi Shigeo Yoshida Tatsuro Ishibashi Yusaku Nakabeppu Koh-Hei Sonoda

Oxidative stress is implicated in various neurodegenerative disorders, including retinitis pigmentosa (RP), an inherited disease that causes blindness. The biological and cellular mechanisms by which oxidative stress mediates neuronal cell death are largely unknown. In a mouse model of RP (rd10 mice), we show that oxidative DNA damage activates microglia through MutY homolog-mediated (MUYTH-med...

Journal: :Polimery 2022

The presented paper investigated the influence of brewers’ spent grain (BSG) extrusionparameters on photo-oxidative resistance poly(ε-caprolactone)-based wood polymer composites.Filler samples characterized by higher melanoidin content were more efficient in hindering polymerdegradation, inhibiting decomposition amorphous phase. As a result, deteriorationof mechanical performance was limited, w...

Journal: :Molecules 2012
Tursun Abdiryim Ruxangul Jamal Aminam Ubul Ismayil Nurulla

A new terthiophene monomer: 3',4'-dimethoxy-2,2':5',2"-terthiophene (TMT) was synthesized and characterized by ¹H-NMR, ¹³C-NMR and FTIR. The solid-state oxidative polymerizations of TMT were performed in various ratios of oxidant (FeCl₃) to monomer (TMT). The resulting polymers were characterized by ¹H-NMR, FTIR, UV-vis-NIR, GPC, X-ray diffraction, CV, as well as TGA and conductivity measuremen...

2011
Marek Banasik Todd Stedeford Robert P Strosznajder Masanori Takehashi Seigo Tanaka Kunihiro Ueda

Carbon tetrachloride (CCl(4)) is routinely used as a model compound for eliciting centrilobular hepatotoxicity. It can be bioactivated to the trichloromethyl radical, which causes extensive lipid peroxidation and ultimately cell death by necrosis. Overactivation of poly(ADP-ribose) polymerase-1 (PARP-1) can rapidly reduce the levels of β-nicotinamide adenine dinucleotide and adenosine triphosph...

2008
Wei Wang Gil Jun Lee Kyeung Joo Jang Tae Sub Cho Seog K. Kim

The conditions for the measurement of linear dichroism (LD) can be adjusted so as to solely reflect the length and the flexibility of DNA. The real-time detection of the EDTA.Fe(2+)-induced oxidative cleavage of double-stranded native and synthetic DNAs was performed using LD. The decrease in the magnitude of the LD at 260 nm, which reflects an increase in the flexibility and a decrease in the ...

Journal: :Polymer 2021

Abstract Polyaniline-based cryogels were prepared by oxidative cryopolymerization in the presence of various concentrations poly(N-vinylpyrrolidone) and phytic acid used as a polymer support dopant, respectively. Mechanical strength handling stability resulting macroporous materials (pore size up to 70 μm) significantly improved addition into polymerization system compared crosslinked only acid...

Journal: :Journal of Materials Science 2021

Abstract In this work, new bio-based copoly(ester amide)s were synthesized by a two-step melt polycondensation process, using 2,5-furanedicarboxylic acid dimethyl ester (DMFDC), 1,3-propanediol (PDO), and 1,3-diaminopropane (DAP), with different DAP content. The chemical structure of the obtained poly(trimethylene 2,5-furandicarboxylate)-co-poly(propylene furanamide) (PTF-co-PPAF) copolymers wa...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید