Results 21 to 30 of about 1,431,270 (200)
Structural insights into an engineered feruloyl esterase with improved MHET degrading properties
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa +5 more
wiley +1 more source
Activated carbons were obtained by phosphoric acid activation of a mixture of fruit stones (apricot and peach) in two different atmospheres (argon and air) at various temperatures in the 400–1000°C range.
A.M. Puziy +5 more
doaj +1 more source
Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley +1 more source
Adsorption of Thiocyanate Anions from Aqueous Solution onto Adsorbents of Various Origin
The removal of thiocyanate, a toxic anion originating in a large number of industrial processes, from aqueous solutions was investigated using adsorbents of different natures (activated carbon, zeolite, diatomite, sepiolite, hydrotalcite, steel-making ...
Noelia V. Aguirre +3 more
doaj +1 more source
Resumen. Con frecuencia se ha afirmado que las compañías ferroviarias de propiedad británica hasta 1947 tenían interés en la importación de carbón y que por esa razón fueron un obstáculo para el desarrollo de la producción nacional de petróleo.
Mario Justo López
doaj +1 more source
Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee +7 more
wiley +1 more source
Preparation and Evaluation of a Coconut Shell-Based Activated Carbon for CO2/CH4 Separation
Biomass is a widely distributed and renewable source of carbon. The main objective of this work is to produce an activated carbon from coconut shells with suitable characteristics to separate CO2 from biogas.
Amna Abdeljaoued +5 more
doaj +1 more source
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley +1 more source
Combustión de carbón vegetal, enemigo latente del medio ambiente
El presente artículo emerge de una investigación, la cual se plantea como objetivo generar una estrategia medio ambiental que permita minimizar el impacto de la calidad del aire producida por la combustión del carbón vegetal en la población de Barrio ...
Mary Lucero Valencia Cuero
doaj +1 more source
Reconstructing enzyme evolution by protein engineering
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler +2 more
wiley +1 more source

