Results 41 to 50 of about 40,177 (246)

Complexation with Polysaccharides Enhances the Stability of Isolated Anthocyanins

Foods, 2023
Isolated anthocyanins have limited colonic bioavailability due to their instability as free forms. Thus, many methods have been fabricated to increase the stability of anthocyanins.
Wenyi Fu, Shiyu Li, Harrison Helmick, Bruce R. Hamaker, Jozef L. Kokini, Lavanya Reddivari   +5 more
doaj   +1 more source

Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?

FEBS Letters, EarlyView.
This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes, Guilherme M. Azevedo, Amanda P. Barcellos, Diana Bahia   +3 more
wiley   +1 more source

Determination of intrinsic equilibrium constants at an alumina/electrolyte interface [PDF]

Journal of the Serbian Chemical Society, 2004
Intrinsic ionization and complexation constants at an alumina/electrolyte interface were studied by the site binding model, while the sorption of alkali cations from aqueous solutions was interpreted by the triple-layer model.
SLOBODAN K. MILONJIC, ZAKLINA N. TODOROVIC   +1 more
doaj  

Zeta potential prediction of dominant sandstone minerals via surface complexation modelling

Scientific African, 2023
Numerous injection water compositions have been developed by various researchers to optimize the oil recovery via wettability alteration. The ionic composition of the injected brine plays a profound role in the rock/brine and crude-oil/brine interfacial ...
Samuel Erzuah, Wilberforce Nkrumah Aggrey, Joel Teye Tetteh, Vida Bodi, Caspar Daniel Adenutsi, Yen Adams Sokama-Neuyam, Kwame Sarkodie, William Ampomah, Godfred Ohemeng-Boahen, Kwabena Biritwum Nyarko   +9 more
doaj   +1 more source

Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing

FEBS Letters, EarlyView.
Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley   +1 more source

Skyrme–Faddeev Instantons on Complex Surfaces [PDF]

Communications in Mathematical Physics, 2014
The authors study a conformally invariant \(\sigma_2\)-variational problem for a map \(\varphi:(M^4,g)\to (N,h)\). The map \(\varphi\) is an instanton solution for the strongly coupled Skyrme and Faddeev models if it is a stable smooth critical point of the \(\sigma_2\) (finite) energy \(\mathcal{E}_{\sigma_2}(\varphi)= \int_M|\wedge^2d\varphi|^2v_g\).
Slobodeanu, R., Svensson, M.
openaire   +3 more sources

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, Zelin Cheng, Teng Li, Fulian Wang, Liangminghui Zhang, Xiuxiu He, Lili Liu, Wei Wang, Aibin Liang, Guang Yang   +9 more
wiley   +1 more source

Surface Complexation Modeling in Variable Charge Soils: Charge Characterization by Potentiometric Titration

Revista Brasileira de Ciência do Solo, 2015
Intrinsic equilibrium constants of 17 representative Brazilian Oxisols were estimated from potentiometric titration measuring the adsorption of H+ and OH− on amphoteric surfaces in suspensions of varying ionic strength.
Giuliano Marchi, Cesar Crispim Vilar, George O’Connor, Marx Leandro Naves Silva   +3 more
doaj   +1 more source

Modeling surface chemistry and adsorption behavior of biomimetic chitosan/silica hybrid materials

Journal of Materials Research and Technology, 2020
Chitosan/silica hybrid powders, obtained by the sol-gel method (pH 6, 7, 8) are studied for proposing surface chemical models and rationalizing their behaviour as adsorbents.
Johnatan Diosa, Juan C Poveda-Jaramillo, Frank Ramirez-Rodríguez, Monica Mesa   +3 more
doaj   +1 more source

Time after time – circadian clocks through the lens of oscillator theory

FEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo, Carolin Ector, Hanspeter Herzel   +2 more
wiley   +1 more source