Results 31 to 40 of about 505,195 (290)

Nanomaterials in food and agriculture: The big issue of small matter for organic food and farming [PDF]

open access: yes, 2011
Nanotechnology is the study of very small matter, of materials where one dimension is less than 100 nanometres. Surveys reveal that consumers are generally ignorant of nanotechnology, are concerned of its risks versus benefits, expect labelling of ...
Paull, John
core  

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

open access: yesFEBS 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

Nanotechnology and cancer [PDF]

open access: yes, 2008
The biological picture of cancer is rapidly advancing from models built from phenomenological descriptions to network models derived from systems biology, which can capture the evolving pathophysiology of the disease at the molecular level.
Davis, Mark E., Heath, James R.
core   +2 more sources

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

open access: yesFEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel   +13 more
wiley   +1 more source

The challenges of "upstream" communication and public engagement for Irish nanotechnology [PDF]

open access: yes, 2009
This paper sets out some challenges for Ireland’s contribution to nanotechnology public engagement in the context of current STS and science communication theoretical practice approaches.
Murphy, Padraig
core  

β‐Catenin/c‐Myc Axis Modulates Autophagy Response to Different Ammonia Concentrations

open access: yesAdvanced Biology, Volume 9, Issue 3, March 2025.
Ammonia, detoxified by the liver into urea and glutamine, impacts autophagy differently at varying levels. Low ammonia activates autophagy via c‐Myc and β‐catenin, while high levels suppress it. Using Huh7 cells and Spf‐ash mice, c‐Myc's role in cytoprotective autophagy is revealed, offering insights into hyperammonemia and potential therapeutic ...
S. Sergio   +11 more
wiley   +1 more source

Affecting the Properties of Copper–Graphene Electroconductive Composite by Severe Plastic Deformation

open access: yesAdvanced Engineering Materials, EarlyView.
Copper‐based composites enhanced with carbon feature convenient mechanical properties and favorable electric conductivity. Processing via deformation and thermomechanical treatments can introduce advantageous microstructures further enhancing their performance. Herein, copper–graphene powder‐based composites are directly consolidated via rotary swaging
Radim Kocich   +3 more
wiley   +1 more source

Study of The Validity and Reliability of Nanotechnology Awareness Scale in Turkish Culture

open access: yesInternational Journal of Assessment Tools in Education, 2020
The aim of this study was to determine the validity and reliability of the Nanotechnology Awareness Scale (NAI) in Turkish culture. The study group consists of 624 biology, physics and chemistry teachers working in secondary schools in Antalya, Denizli ...
Figen Erkoç   +3 more
doaj   +1 more source

Nanotechnology in medicine and healthcare: Possibilities progress and problems

open access: yesSouth African Journal of Bioethics and Law, 2015
Nanotechnology or nanoscience covers the investigation, design, manipulation, precision placement, measurement, modelling or fabrication of matter, structures, devices and systems that exist at the nanoscale – essentially at the atomic and molecular ...
Jillian Gardner
doaj   +1 more source

Molecular nanotechnology

open access: yesClinical Chemistry, 1993
Abstract Molecular nanotechnology involves the ability to manufacture objects to precise atomic specifications. A central postulate is that any structure that can be specified and that does not violate physical law can be built. Three pathways to molecular nanotechnology are proximate probe technology (the use of improvements of the ...
openaire   +2 more sources

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