Results 41 to 50 of about 72,827 (307)
Química Nova, 2006 Catalysis by solid acids has received much attention due to its importance in petroleum refining and petrochemical processes. Relatively few studies have focused on catalysis by bases and even les on using basic molecular sieves.
Leandro Martins, Dilson Cardoso
doaj +1 more source
Copper crystallite in carbon molecular sieves for selective oxygen removal [PDF]
, 1993 Carbon molecular sieves modified by the incorporation of finely divided elemental copper useful for the selective sorption of oxygen at elevated temperatures. The carbon molecular sieves can be regenerated by reduction with hydrogen.
Seshan, Panchalam K., Sharma, Pramod K.
core +1 more source
Structural aspects of AlPO4-5 zeotypes synthesized by microwave-hydrothermal process. 1. Effect of heating time and microwave power [PDF]
, 2009 AlPO4-5 with AFI structure containing 12-membered rings was prepared using the aluminum isopropoxide precursor as a source of alumina and TEA as the structure directing agent via microwave technique.
Sakintuna, Billur +2 more
core +3 more sources
Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation
FEBS Letters, EarlyView.Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe +3 more
wiley +1 more source
Two systems developed for purifying inert atmospheres [PDF]
, 1969 Two systems, one for helium and one for argon, are used for purifying inert atmospheres. The helium system uses an activated charcoal bed at liquid nitrogen temperature to remove oxygen and nitrogen. The argon system uses heated titanium sponge to remove
Foster, M. S. +2 more
core +1 more source
Aluminophosphate molecular sieves comprised of hydrated triple crankshaft chains [PDF]
, 1993 We report the first synthesis of pure aluminophosphate hydrate H2 (AlPO4-H2) and its structure; AlPO4-H2 is constructed exclusively from a hydrated chain building unit that also builds the 18-ring VPI-5 structure and has one-dimensional channels ...
Davis, Mark E. +3 more
core +1 more source
Function‐driven design of a surrogate interleukin‐2 receptor ligand
FEBS Letters, EarlyView.Interleukin (IL)‐2 signaling can be achieved and precisely fine‐tuned through the affinity, distance, and orientation of the heterodimeric receptors with their ligands. We designed a biased IL‐2 surrogate ligand that selectively promotes effector T and natural killer cell activation and differentiation. Interleukin (IL) receptors play a pivotal role in
Ziwei Tang +9 more
wiley +1 more source
Compositions and medical devices for controlled release of nitric oxide and methods of production thereof [PDF]
, 2015 The present disclosure describes compositions providing for controlled release of nitric oxide (NO) and methods for production of these compositions. In some embodiments, the compositions may include a biodegradable polymer and a nitric oxide-releasing ...
Balkus, Kenneth J., Jr., Liu, Harvey A.
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Multiple ETS family transcription factors bind mutant p53 via distinct interaction regions
FEBS Letters, EarlyView.Mutant p53 gain‐of‐function is thought to be mediated by interaction with other transcription factors. We identify multiple ETS transcription factors that can bind mutant p53 and found that this interaction can be promoted by a PXXPP motif. ETS proteins that strongly bound mutant p53 were upregulated in ovarian cancer compared to ETS proteins that ...
Stephanie A. Metcalf +6 more
wiley +1 more source
Iraqi Journal of Chemical and Petroleum Engineering, 2023 Silica-based mesoporous materials are a class of porous materials with unique characteristics such as ordered pore structure, large surface area, and large pore volume.
Badoor M. Kurji +2 more
doaj +1 more source