Results 81 to 90 of about 197,339 (252)

Fructose activates a stress response shared by methylglyoxal and hydrogen peroxide in Streptococcus mutans

mBio
Fructose catabolism by Streptococcus mutans is initiated by three phosphotransferase (PTS) transporters yielding fructose-1-phosphate (F-1-P) or fructose-6-phosphate.
Alejandro R. Walker, Danniel N. Pham, Payam Noeparvar, Alexandra M. Peterson, Marissa K. Lipp, José A. Lemos, Lin Zeng   +6 more
doaj   +1 more source

A Geometrically Transient Platform for Bioelectronic Implants

Advanced 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, John D. Goodwin, Atharv Naik, Philip Coatsworth, Ioi Chit Cheung, Farbod Amirghasemi, Anies Sohi, Ehsan Abedi, Tayeb Tadlaoui, Maral P. S. Mousavi, Andriy S. Kozlov, Victoria Salem, Andrew S. Cowburn, Firat Guder   +13 more
wiley   +1 more source

Intergenerational effects of dietary iron on swimming and metabolic performance in zebrafish

Frontiers in Physiology
Iron is an essential trace metal required for various physiological processes, yet both deficiency and excess can disrupt metal homeostasis and compromise fitness.
Theanuga Chandrapalan, Suhani Walia, Raymond W. M. Kwong   +2 more
doaj   +1 more source

Topology‐Orchestrated Multi‐physical Energy Control in Turtle Shell‐Inspired Metamaterials

Advanced Materials, EarlyView.
A turtle shell‐inspired lattice metamaterial efficiently manages acoustic, fluid‐thermal, and mechanical energy flows simultaneously. The unique hybrid‐coupling architecture achieves superior sound attenuation via pore‐cavity resonance, facilitates effective airflow transport, and maximizes mechanical energy absorption through multistage cell ...
Xi Wang, Shiyi Wang, Bingzhi Chen, Xinwei Li   +3 more
wiley   +1 more source

A flow equilibrium model controlling cytoplasmic transition metal cation pools and preventing mis-metalation as exemplified for zinc homeostasis

Journal of Bacteriology
The metal cations of the first transition period fill up their 3d orbitals from 3d5 for Mn(II) to 3d10 for Zn(II). Enzymes use these cations as cofactors and exploit their individual chemical features for important catalytic reactions. A prerequisite for
Dietrich H. Nies
doaj   +1 more source

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

Advanced 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, László Mérai, Kai Ludwig, Rainer Haag, Quinn A. Besford, Alex J. Plajer   +5 more
wiley   +1 more source

Epigenetic regulation of cuproptosis in cancer: mechanisms, microenvironment, and therapeutic implications

Frontiers in Cell and Developmental Biology
Cuproptosis is a regulated form of cell death triggered by copper overload and dependent on mitochondrial metabolism, particularly through FDX1-mediated protein lipoylation and TCA cycle disruption. Recent studies have revealed that epigenetic mechanisms,
Xin Zhang, Yixiao Yuan, Lin Tang, Juan Wang, Lincan Duan, Xiulin Jiang, Jia Zhang   +6 more
doaj   +1 more source

Biointegrated Battery‐Based Electroceuticals

Advanced Materials, EarlyView.
Biointegrated batteries go beyond passive power to serve as active therapeutic platforms for delivering programmable electrical cues and bioactive agents. This review examines their mechanisms and applications and provides a framework to guide battery‐based therapeutic design and clinical translation.
Yan Zhou, Zhilian Yue, Zhiqi Chen, Danming Chao, Xiaoteng Jia, Gordon Wallace, Caiyun Wang   +6 more
wiley   +1 more source

Role of a TonB-dependent receptor and an oxygenase in iron-dependent copper resistance in Caulobacter crescentus

Journal of Bacteriology
Copper (Cu) is potentially threatening for living organisms owing to its toxicity at high concentrations, requiring the onset of diverse detoxification strategies to maintain fitness.
Pauline Cherry, Hala Kasmo, Mauro Godelaine, Françoise Tilquin, Marc Dieu, Patsy Renard, Jean-Yves Matroule   +6 more
doaj   +1 more source

Phenotypic and molecular consequences of overexpression of metal-homeostasis genes

Frontiers in Plant Science, 2014
Metal hyperaccumulating plants are able to store very large amounts of metals in their shoots. There are a number of reasons why it is important to be able to introduce metal hyperaccumulation traits into nonaccumulating species (e.g., phytoremediation ...
Danuta Maria eAntosiewicz, Anna eBarabasz, Oskar eSiemianowski   +2 more
doaj   +1 more source