Results 101 to 110 of about 2,049,740 (304)

Carbon Supported Ag Nanoparticles as High Performance Cathode Catalyst for Anion Exchange Membrane Fuel Cell

Frontiers in Chemistry, 2013
A solution phase-based nanocapsule method was successfully developed to synthesize non-precious metal catalyst - carbon supported Ag nanoparticles (Ag/C). XRD patterns and TEM image show Ag nanoparticles with a small average size (5.4 nm) and narrow size
Le eXin, Zhiyong eZhang, Zhichao eWang, Ji eQi, Wenzhen eLi   +4 more
doaj   +1 more source

New electrocatalysts for hydrogen-oxygen fuel cells [PDF]

, 1970
Platinum-silver, palladium-gold, and platinum-gold alloys serve as oxygen reduction catalysts in high-current-density cells. Catalysts were tested on polytetrafluoroethylene-bonded cathodes and a hydrogen anode at an operating cell temperature of 80 ...
Cattabriga, R. A., Giner, J., Parry, J., Swette, L. L.   +3 more
core   +1 more source

Therapeutic strategies for MMAE‐resistant bladder cancer through DPP4 inhibition

Molecular Oncology, EarlyView.
We established monomethyl auristatin E (MMAE)‐resistant bladder cancer (BC) cell lines by exposure to progressively increasing concentrations of MMAE in vitro. RNA sequencing showed DPP4 expression was increased in MMAE‐resistant BC cells. Both si‐DPP4 and the DPP4 inhibitor sitagliptin suppressed the viability of MMAE‐resistant BC cells.
Gang Li, Shuichi Tatarano, Hirofumi Yoshino, Saeki Saito, Mitsuhiko Tominaga, Junya Arima, Ikumi Fukuda, Takashi Sakaguchi, Ryosuke Matsushita, Yasutoshi Yamada, Hideki Enokida   +10 more
wiley   +1 more source

Peroxidasin enables melanoma immune escape by inhibiting natural killer cell cytotoxicity

Molecular Oncology, EarlyView.
Peroxidasin (PXDN) is secreted by melanoma cells and binds the NK cell receptor NKG2D, thereby suppressing NK cell activation and cytotoxicity. PXDN depletion restores NKG2D signaling and enables effective NK cell–mediated melanoma killing. These findings identify PXDN as a previously unrecognized immune evasion factor and a potential target to improve
Hsu‐Min Sung, David Bickel, Lena C. M. Krause, Daria Ezeriņa, Christian Ickes, Julian Wojtachnia, Christine S. Gibhardt, Magdalena Shumanska, Khadija Wahni, Andrea Paluschkiwitz, Julia Malo Pueyo, Ekaterina Baranova, Wim Vranken, Hedwig Stanisz, Ioana Stejerean‐Todoran, Michael P. Schön, Joris Messens, Ivan Bogeski   +17 more
wiley   +1 more source

Microwave assisted synthesis of metallic Ru for the HOR and ORR

Materials Research Express, 2020
Metallic ruthenium electrocatalyst with activity for the hydrogen oxidation reaction and the oxygen reduction reaction has been synthesized by microwave irradiation at 180 °C in deionized water as reaction media.
M Bernal-López, A Selva-Ochoa, E Borja-Arco, L Magallón-Cacho, J Su-Gallegos   +4 more
doaj   +1 more source

Redox functionality mediated by adsorbed oxygen on a Pd-oxide film over a Pd(100) thin structure: A first-principles study

, 2009
Stable oxygen sites on a PdO film over a Pd(100) thin structures with a (sqrt{5} times sqrt{5}) R27^circ surface-unit cell are determined using the first-principles electronic structure calculations with the generalized gradient approximation.
Giannozzi P, H Nagara, K Harada, K Kusakabe, Miyaura N, Y k Ikuno   +5 more
core   +1 more source

Thin films preparation by rf-sputtering of copper/iron ceramic targets with Cu/Fe=1: From nanocomposites to delafossite compounds [PDF]

, 2008
In the Cu–Fe–O phase diagram, delafossite CuFeO2 is obtained for the CuI oxidation state and for the Cu/Fe=1 ratio. By decreasing the oxygen content, copper/spinel oxide composite can be obtained because of the reduction and the disproponation of ...
Barnabé, Antoine, Mugnier, Emmanuelle, Presmanes, Lionel, Tailhades, Philippe   +3 more
core   +2 more sources

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

Molecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Effect of Tin Precursor Ligand in SnFe–N–C Single‐Site Catalysts for Oxygen Reduction Reaction

ChemElectroChem
Iron–nitrogen–carbon materials are still the most promising alternative to platinum group materials for the electrochemical reduction of O2. Doping with a secondary metal center is a possible way to further enhance the activity, and Sn seems to be a ...
Marco Mazzucato, Leonardo Cielo, Mattia Parnigotto, Andrea Zitolo, Marzio Rancan, Denis Badocco, Paolo Pastore, Lidia Armelao, Christian Durante   +8 more
doaj   +1 more source

Metal–Organic Frameworks Toward Electrocatalytic Applications

Applied Sciences, 2019
Metal−organic frameworks (MOFs) are a class of porous materials constructed from metal-rich inorganic nodes and organic linkers. Because of their regular porosity in microporous or mesoporous scale and periodic intra-framework functionality, three ...
Jun-Hong Li, Yi-Sen Wang, Yu-Chuan Chen, Chung-Wei Kung   +3 more
doaj   +1 more source