Results 61 to 70 of about 125,698 (285)

A theoretical study of alkane protonation in HF/SbF5 superacid system

Journal of the Brazilian Chemical Society, 2000
Ab initio calculations for the protonation of the C-H and C-C bonds of methane, ethane, propane and isobutane by a superacid moiety was carried out. For the C-H protonation (H/H exchange) the transition state resembles an H-carbonium ion coordinated with
Esteves Pierre M., Ramírez-Solís Alejandro, Mota Claudio J. A.   +2 more
doaj  

High diversity of anaerobic alkane-degrading microbial communities in marine seep sediments based on (1-methylalkyl)succinate synthase genes

Frontiers in Microbiology, 2016
Alkanes comprise a substantial fraction of crude oil and are prevalent at marine seeps. These environments are typically anoxic and host diverse microbial communities that grow on alkanes.
Marion H. Stagars, S. Emil Ruff, Rudolf eAmann, Katrin eKnittel   +3 more
doaj   +1 more source

Role of cysteine residues in the structure, stability, and alkane producing activity of cyanobacterial aldehyde deformylating oxygenase. [PDF]

PLoS ONE, 2015
Aldehyde deformylating oxygenase (AD) is a key enzyme for alkane biosynthesis in cyanobacteria, and it can be used as a catalyst for alkane production in vitro and in vivo.
Yuuki Hayashi, Fumitaka Yasugi, Munehito Arai   +2 more
doaj   +1 more source

Comparison of the Biodegradation of n-alkanes and Readily Biodegradable Substrates Using Open Mixed Culture under Aerobic, Anoxic and Anaerobic Conditions [PDF]

, 2017
Peer reviewedPublisher ...
Dionisi, Davide, Uzukwu, Chukwuemeka
core   +2 more sources

Cytoplasmic p21 promotes stemness of colon cancer cells via activation of the NFκB pathway

Molecular Oncology, EarlyView.
Cytoplasmic p21 promotes colorectal cancer stem cell (CSC) features by destabilizing the NFκB–IκB complex, activating NFκB signaling, and upregulating BCL‐xL and COX2. In contrast to nuclear p21, cytoplasmic p21 enhances spheroid formation and stemness transcription factor CD133.
Arnatchai Maiuthed, Kerstin Huebner, Katharina Erlenbach‐Wuensch, Chuanpit Hampel, Daniela Thalheim, Adriana Vial‐Roehe, Bodee Nutho, Susanne Merkel, Arndt Hartmann, Pithi Chanvorachote, Regine Schneider‐Stock   +10 more
wiley   +1 more source

Synthesis and properties of a new AB-cross-linked copolymer membrane system [PDF]

, 1993
The alcohol permeability and permselectivity properties as well as the morphology of membranes made of a newly developed AB-cross-linked copolymer system composed of elastomeric and glassy components were investigated.
Kerres, J.A., Strathmann, H.
core   +2 more sources

Class IIa HDACs forced degradation allows resensitization of oxaliplatin‐resistant FBXW7‐mutated colorectal cancer

Molecular Oncology, EarlyView.
HDAC4 is degraded by the E3 ligase FBXW7. In colorectal cancer, FBXW7 mutations prevent HDAC4 degradation, leading to oxaliplatin resistance. Forced degradation of HDAC4 using a PROTAC compound restores drug sensitivity by resetting the super‐enhancer landscape, reprogramming the epigenetic state of FBXW7‐mutated cells to resemble oxaliplatin ...
Vanessa Tolotto, Nicolò Gualandi, Ylenia Cortolezzis, Raffaella Picco, Monica Colitti, Francesca D'Este, Mariachiara Gani, Wayne W. Hancock, Giovanni Terrosu, Cristina Degrassi, Francesca Agostini, Claudio Brancolini, Luigi E. Xodo, Eros Di Giorgio   +13 more
wiley   +1 more source

Strength of Alkane–Fluid Attraction Determines the Interfacial Orientation of Liquid Alkanes and Their Crystallization through Heterogeneous or Homogeneous Mechanisms

Crystals, 2017
Alkanes are important building blocks of organics, polymers and biomolecules. The conditions that lead to ordering of alkanes at interfaces, and whether interfacial ordering of the molecules leads to heterogeneous crystal nucleation of alkanes or surface
Yuqing Qiu, Valeria Molinero
doaj   +1 more source

High-Temperature Size Exclusion Chromatography for Advanced Recycling: Systematic Errors in Analysis of PolyethyleneAlkane Mixtures [PDF]

ACS Appl Polym Mater
Jones M, Barker C, Motolani F, Patter R, Kilbey S, Chandler B, Long B, Vogt B.   +7 more
europepmc   +2 more sources

Cooperative effects in surfactant adsorption layers at water/alkane interfaces

, 2019
In the present work, the properties of dodecyl dimethyl phosphine oxide (C12DMPO) at the water/decane interface are studied and compared with those obtained earlier at the interface to hexane.
Aidarova, S., Aksenenko, E., Fainerman, V., Javadi, A., Makievski, A., Miller, R., Nikolenko, M., Sharipova, A.   +7 more
core   +1 more source