Results 71 to 80 of about 2,133,478 (281)

Optical Detection of Cellular Signals at Material Interfaces

open access: yesAdvanced Healthcare Materials, EarlyView.
Emerging functional materials are transforming optical detection of cellular signals. This review highlights optical techniques that exploit the unique optical properties of diverse materials to detect and quantify cellular electrical, chemical, and mechanical signals, and discusses key opportunities and challenges.
Xuchen Ren   +5 more
wiley   +1 more source

Structural Features Mediating Zinc Binding and Transfer in the AztABCD Zinc Transporter System

open access: yesBiomolecules, 2020
Many bacteria require ATP binding cassette (ABC) transporters for the import of the essential metal zinc from limited environments. These systems rely on a periplasmic or cell-surface solute binding protein (SBP) to bind zinc with high affinity and ...
Anusha Meni, Erik T. Yukl
doaj   +1 more source

Metal ligands in micronutrient acquisition and homeostasis

open access: yesPlant, Cell & Environment, 2019
AbstractAcquisition and homeostasis of micronutrients such as iron (Fe) and zinc (Zn) pose specific challenges. Poor solubility and high reactivity require controlled synthesis and supply of ligands to complex these metals extracellularly and intracellularly. Cytosolic labile pools represent only a minute fraction of the total cellular content. Several
openaire   +2 more sources

Role of metal ions dyshomeostasis in neurodegeneration [PDF]

open access: yes, 2013
In the present study metal ions role in neurodegenerative processes has been investigated. Two major pathways have been developed: 1) metal ions role in β-amyloid (Aβ folding and deposition from in vitro to in vivo; 2) calcium dyshomeostasis in an in ...
Granzotto, Alberto
core  

Chemical Strategies for Multistimuli Responsive Dynamic Covalent Materials in Regenerative Medicine

open access: yesAdvanced Healthcare Materials, EarlyView.
Multistimuli responsive dynamic covalent materials integrate reversible chemistry with the complex chemical, mechanical, and biochemical cues of regenerative environments. This review highlights chemical strategies based on orthogonal dynamic bonds, multicomponent networks, and hierarchical architectures to regulate mechanics, degradation, and ...
Saurabh Joshi   +2 more
wiley   +1 more source

Genetic and Biochemical Analysis of the Azotobacter vinelandii Molybdenum Storage Protein

open access: yesFrontiers in Microbiology, 2019
The N2 fixing bacterium Azotobacter vinelandii carries a molybdenum storage protein, referred to as MoSto, able to bind 25-fold more Mo than needed for maximum activity of its Mo nitrogenase.
Mónica Navarro-Rodríguez   +2 more
doaj   +1 more source

Integrative concept of homeostasis: translating physiology into medicine [PDF]

open access: yes, 2011
To truly understand living systems they must be viewed as a whole. In order to achieve this and to come to some law to which living systems obey, data obtained on cells, tissues and organs should be integrated.
Ivan Spasojevic
core   +1 more source

A Geometrically Transient Platform for Bioelectronic Implants

open access: yesAdvanced Materials, EarlyView.
Minimally invasive bioelectronic implants often compromise performance for smaller sizes. To resolve this optimization dilemma, a wireless bioelectronic implant with a transient geometry is introduced (MiFi). The origami‐inspired device miniaturizes up to sixfold for syringe insertion and autonomously unfolds post‐implantation.
Selin Olenik   +13 more
wiley   +1 more source

Two P1B-1-ATPases of Amanita strobiliformis With Distinct Properties in Cu/Ag Transport

open access: yesFrontiers in Microbiology, 2018
As we have shown previously, the Cu and Ag concentrations in the sporocarps of Ag-hyperaccumulating Amanita strobiliformis are correlated, and both metals share the same uptake system and are sequestered by the same metallothioneins intracellularly.
Vojtěch Beneš   +3 more
doaj   +1 more source

Stimuli‐Responsive Hierarchical Structuring Controls Survival and Programs Hydrogelation of Supramolecular Metallofibers

open access: yesAdvanced Materials, EarlyView.
Aqueous Zn(II) Salphen metallofibers decorated with PNIPAM undergo reversible, multi‐stimuli‐responsive hierarchical bundling. This higher‐order structuring kinetically stabilizes the otherwise fragile assemblies against dilution, acidic hydrolysis, and transmetallation, enables selective sorting of responsive fibers, and programs hydrogelation at ...
Merlin R. Stühler   +5 more
wiley   +1 more source

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