Results 31 to 40 of about 103,048 (257)

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
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

Electro-induced two-way shape memory thermoplastic polyamide elastomer/carbon nanotubes composites

Journal of Materials Research and Technology
Electro-induced two-way shape memory polymer is a kind of smart material which can realize bidirectional reversible actuation under current stimulation.
Yiwei Lu, Yiman Wu, Jilong Wu, Pengfei Yang, Yuancheng Zhang, Wei Zhao, Xiaomeng Zhang, Zhe Cui, Peng Fu, Xinchang Pang, Minying Liu   +10 more
doaj   +1 more source

Epigenetic blind spots – the role of DNA methylation dynamics in stem cell‐based models of embryogenesis

FEBS Letters, EarlyView.
Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil, Anna Corrà, Annalisa Scapolatiello, Chengxiang Qiu, Gianluca Amadei   +4 more
wiley   +1 more source

Laser deposition of titanium layer to enhance two-way shape memory behavior of Nitinol sheet

Journal of Materials Research and Technology
One of the long-standing mechanical challenges associated with shape memory alloys (SMAs) is achieving and stabilizing an evolving two-way shape memory effect (TWSME) through thermomechanical training/cycling.
Ha Neul Kwon, Daniyal Abolhasani, Young Hoon Moon   +2 more
doaj   +1 more source

Martensitic Tweed and the Two-Way Shape-Memory Effect

, 1997
We briefly introduce tweed, which is found above the martensitic transition in a variety of shape-memory, high-T_c, and other materials. Based on our previous mapping of the problem onto a spin-glass model, we conjecture that the two-way shape-memory effect is due to tweed.
Sethna, James P., Myers, Christopher R.
openaire   +2 more sources

Modulation of Homer1 EVH1 domain internal dynamics by putative autism‐associated mutations

FEBS Letters, EarlyView.
The putative autism‐associated M65I and S97L variants of the EVH1 domain of the postsynaptic scaffold protein Homer1 do not exhibit substantial changes in their overall structure or partner binding. Both of them, but especially the M65I variant, show altered internal dynamics relative to the wild‐type domain on the μs‐ms timescale, indicated by the ...
Fanni Farkas, Brigitta Maruzs, Zsófia E. Kálmán, Tomas Klumpler, Gyula Batta, Bálint Péterfia, Zoltán Gáspári   +6 more
wiley   +1 more source

Microbiome−host proteostasis crosstalk—An emerging perspective on mechanisms and interventions toward healthy longevity

FEBS Letters, EarlyView.
Proteostasis and the gut microbiota play a key role in shaping host physiology. Microbiota‐derived metabolites, vitamins, and RNA modulate host proteostasis. Findings from model systems, including C. elegans, indicate microbes can either stabilize or disrupt host proteostasis.
Abhishek Anil Dubey, Maria Ermolaeva
wiley   +1 more source

Two-Way Shape Memory Effect Driven Solar Sails for Active Solar Radiation Pressure Modulation

Aerospace
Solar sailing has proven to be an effective solution for cost-effective and long-term space missions due to its fuel-free propulsion. While multiple large-scale solar sails based on kilogram-class satellites have been developed and tested in space, solar
Peidong Jia, Ruilei Chen, Zhongjing Ren, Chengyang Li, Zizhan Tu, Boyang Jiang, Xu Zhang, Ziran Wang, Dakai Liu, Erchao Li   +9 more
doaj   +1 more source

Design of a Morphing Skin with Shape Memory Alloy Based on Equivalent Thermal Stress Approach

Micromachines, 2022
Shape memory alloy (SMA) is one of the potential driving devices for morphing aircraft due to its advantages of pseudoelasticity, superelasticity, and shape memory effect.
Wei Zhang, Yueyin Ma, Xinyu Gao, Wanhua Chen, Xutao Nie   +4 more
doaj   +1 more source

The therapeutic opportunities and pitfalls of using iron ion chelators to treat neurodegenerative diseases

FEBS Letters, EarlyView.
Although too much iron in the brain promotes neurodegeneration, iron ion chelators have had mixed effects in clinical trials. This review explains why; some chelators do not render the iron redox‐inactive (e.g., L1) whereas others do (e.g., desferrioxamine).
Barry Halliwell
wiley   +1 more source