Results 71 to 80 of about 464,765 (299)

Smart, Bio‐Inspired Polymers and Bio‐Based Molecules Modified by Zwitterionic Motifs to Design Next‐Generation Materials for Medical Applications

open access: yesAdvanced Functional Materials, EarlyView.
Bio‐based and (semi‐)synthetic zwitterion‐modified novel materials and fully synthetic next‐generation alternatives show the importance of material design for different biomedical applications. The zwitterionic character affects the physiochemical behavior of the material and deepens the understanding of chemical interaction mechanisms within the ...
Theresa M. Lutz   +3 more
wiley   +1 more source

Connecting proline metabolism and signaling pathways in plant senescence

open access: yesFrontiers in Plant Science, 2015
The amino acid proline has a unique biological role in stress adaptation. Proline metabolism is manipulated under stress by multiple and complex regulatory pathways and can profoundly influence cell death and survival in microorganisms, plants, and ...
Lu eZhang, Donald eBecker
doaj   +1 more source

Comparison of Changes in Proline, Soluble Sugar and Ion Content of Atriplex lentiformis, Halostachys belangeriana and Tamarix rammossma Over Various Times and Natural Salinity Conditions [PDF]

open access: yesمدیریت بیابان, 2013
This study investigated the changes of proline, soluble sugar, Na, K and N in Atriplex lentiformis, Halostachys belangeriana and Tamarix rammossma over two seasons (winter and summer) in the field conditions.
Asghar Mosleh Arany   +2 more
doaj   +1 more source

Self-assembly and potassium ion triggered disruption of peptide-based soft structures [PDF]

open access: yes, 2007
This report describes formation of soft vesicular structures by a tetrapeptide and its disruption triggered by potassium ...
Ghosh, Surajit   +2 more
core   +3 more sources

Raman Microscopy at the Organic–Inorganic Interfaces in Human Calcified Aortic Valves Shows the Co‐Existence of Whitlockite Crystals and Carbonated Hydroxyapatite‐Mineralized Collagen Fibrils

open access: yesAdvanced Functional Materials, EarlyView.
This study advances our understanding of aortic valve stenosis by capturing spatially resolved chemical and structural changes at the nanoscale. The findings highlight the potential of combined Raman and electron microscopy for understanding calcification mechanisms across diverse tissue types.
Robin H. M. Van der Meijden   +11 more
wiley   +1 more source

Amyloidogenic Peptide Fragments Designed From Bacterial Collagen‐like Proteins Form Hydrogel

open access: yesAdvanced Functional Materials, EarlyView.
This study identified amyloidogenic sequence motifs in bacterial collagen‐like proteins and exploited these to design peptides that self‐assemble into β‐sheet fibers and form hydrogels. One hydrogel supported healthy fibroblast growth, showing promise for biocompatible materials. Our work demonstrates that bacterial sequences can be harnessed to create
Vamika Sagar   +5 more
wiley   +1 more source

DFR1-Mediated Inhibition of Proline Degradation Pathway Regulates Drought and Freezing Tolerance in Arabidopsis

open access: yesCell Reports, 2018
Summary: Proline accumulation is one of the most important adaptation mechanisms for plants to cope with environmental stresses, such as drought and freezing. However, the molecular mechanism of proline homeostasis under these stresses is largely unknown.
Yongbing Ren   +8 more
doaj   +1 more source

Symbiotic Performance of Diverse Frankia Strains on Salt-Stressed Casuarina glauca and Casuarina equisetifolia Plants [PDF]

open access: yes, 2016
Symbiotic nitrogen-fixing associations between Casuarina trees and the actinobacteria Frankia are widely used in agroforestry in particular for salinized land reclamation.
Champion, Antony   +11 more
core   +1 more source

Transmission of integrin β7 transmembrane domain topology enables gut lymphoid tissue development. [PDF]

open access: yes, 2018
Integrin activation regulates adhesion, extracellular matrix assembly, and cell migration, thereby playing an indispensable role in development and in many pathological processes.
Fan, Zhichao   +5 more
core   +2 more sources

The Terminal Domains of Collagen‐Like Silk Direct Molecular Interactions and Liquid–Liquid Phase Separation‐Mediated Material Assembly

open access: yesAdvanced Functional Materials, EarlyView.
Terminal domains of recombinant collagen‐like silk regulate hierarchical self‐assembly across molecular and material scales. We show that terminal domains of collagen‐like silk enhance triple‐helix stability and drive liquid–liquid phase separation, enabling reversible formation of fibers and self‐healing films.
Mengjie Shen   +5 more
wiley   +1 more source

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