Results 81 to 90 of about 272,073 (332)

Effect of Environmental Gas on Surface Initiated Rolling Contact Fatigue

Tribology Online, 2013
This paper describes an exploratory study on the effects of temperature on the formation of oxide film and rolling contact fatigue life in hydrogen, argon and air.
Hiroyoshi Tanaka, Tatsuhiko Morofuji, Kakeru Enami, Masaaki Hashimoto, Joichi Sugimura   +4 more
doaj   +1 more source

Ideal Molecular Sieving with a Dense MOF for Helium Upgrading with Highly Diffusion Selective Mixed Matrix Membranes

Advanced Functional Materials, EarlyView.
The separation of Helium gas from natural gas is challenging but highly important. MIL‐116(Ga), a “non‐porous” metal–organic framework is used as a molecular sieve to separate He from CH4. Druse‐like MIL‐116(Ga) particles are integrated into polysulfone mixed matrix membranes.
Ayisha Komal, Laura Calderón‐Rodríguez, Oksana Smirnova, Eren Grossmann, Aparna Binu Varghese, Karen Marlenne Garcia Alvarez, Andreas Schneemann, Thomas Hoyer, Ralf Wyrwa, Felix Helmut Schacher, Alexander Knebel   +10 more
wiley   +1 more source

A rationale for the preparation of asymmetric pervaporation membranes [PDF]

, 1985
Pervaporation is carried out primarily with homogeneous membranes. An improvement in permeation rate can be achieved by using asymmetric or composite membranes. In order to maintain a high selectivity, very dense top layers are needed.
Mulder, M.H.V., Oude Hendrikman, J., Smolders, C.A., Wijmans, J.G.   +3 more
core   +2 more sources

In situ misemgel as a multifunctional dual-absorption platform for nasal delivery of raloxifene hydrochloride: formulation, characterization, and in vivo performance

International Journal of Nanomedicine, 2018
Osama AA Ahmed,1,2 Shaimaa M Badr-Eldin1,3 1Department of Pharmaceutics, Faculty of Pharmacy, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia; 2Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Minia University, Minia,
Ahmed OAA, Badr-Eldin SM
doaj  

Hyperbranched Interpenetrating Hydrogen Bond Network (HIHBN) Proton Exchange Membrane for Fuel Cells Above 220 °C

Advanced Functional Materials, EarlyView.
A novel polymer electrolyte membrane with a hyperbranched interpenetrating hydrogen bond network structure is developed. The unique structure of the hyperbranched polymer contributes to a high glass transition temperature exceeding 400 °C, enabling its operation at elevated temperatures for fuel cell applications.
Lingping Zeng, Dehua Dong, Jun Lu, Kaiqiang He, Xiangcheng Liu, Jianchuan Wang, Zidong Wei, Matthieu Gresil, Julian Ratcliffe, Zhikao Li, Huanting Wang   +10 more
wiley   +1 more source

Investigation of Permeation of Theophylline through Skin Using Selected Piperazine-2,5-Diones

Molecules, 2019
Transdermal administration of drugs that penetrate, in this case directly into the blood circulation, has many advantages and is promising for many drugs thanks to its easy application and good patient compliance.
Aneta Pokorna, Pavel Bobal, Michal Oravec, Lucie Rarova, Janette Bobalova, Josef Jampilek   +5 more
doaj   +1 more source

Solution‐Processable and Ambient‐Stable Highly Conductive p‐Type Polymers Derived from Dihydropyrazine and Ethylenedioxythiophene

Advanced Functional Materials, EarlyView.
This work presents π–conjugated polymers based on dihydropyrazine (DHP) and ethylenedioxythiophene (EDOT), developed to produce highly conductive, flexible films for printed electronics. By optimizing the DHP and EDOT ratio, strong and compact π–π stacking is achieved, resulting in polymer films with conductivities up to 1700 S cm−1 under ambient ...
Sung Jae Jeon, Naixin Zhao, Yi Yuan, Yuning Li   +3 more
wiley   +1 more source

Separation of isomeric xylenes by pervaporation through cellulose ester membranes [PDF]

, 1982
The interaction between the isomeric xylenes and different cellulose esters was investigated using solubility parameter considerations and through measurements of swelling values.
Kruitz, F., Mulder, M.H.V., Smolders, C.A.   +2 more
core   +4 more sources

Optimizing Angiopep‐2 Density on Polymeric Nanoparticles for Enhanced Blood–Brain Barrier Penetration and Glioblastoma Targeting: Insights From In Vitro and In Vivo Experiments

Advanced Functional Materials, EarlyView.
The Angiopep‐2 peptide density on polymeric nanoparticles significantly impacts blood–brain barrier (BBB) penetration. This study explores this nuanced relationship using various in vitro models and in vivo assays, revealing that dynamic models better predict BBB penetration.
Weisen Zhang, Ahmed Refaat, Haoqin Li, Douer Zhu, Ziqiu Tong, Joseph Anthony Nicolazzo, Bo Peng, Hua Bai, Lars Esser, Nicolas Hans Voelcker   +9 more
wiley   +1 more source

Proton block of proton-activated TRPV1 current. [PDF]

, 2015
The TRPV1 cation channel is a polymodal nociceptor that is activated by heat and ligands such as capsaicin and is highly sensitive to changes in extracellular pH. In the body core, where temperature is usually stable and capsaicin is normally absent, H(+)
Lee, Bo Hyun, Zheng, Jie
core   +1 more source