Results 81 to 90 of about 102,918 (289)

Deployable 3D‐Printed Vascular Stent with Surface‐Catalysed Endogenous Nitric Oxide Generation

Advanced Materials, EarlyView.
A deployable 3D‐printed vascular stent was fabricated with surface‐catalyzed endogenous nitric oxide generation, representing a promising new direction for stent development. The stent can be remotely controlled by magnetic force in its compressed state and fully deployed at the target site using an untethered heat source, potentially eliminating the ...
Kun Zhou, Zifei Han, Kang Lin, Di Wu, Siti Nur Asyura Adzlan, Qingqing Fan, Christina Cortez‐Jugo, Rona Chandrawati, Cyrille Boyer   +8 more
wiley   +1 more source

SnapShot: Bacterial Quorum Sensing

Cell, 2018
Quorum sensing (QS) is a chemical communication process that bacteria use to orchestrate group behaviors. QS involves the production, release, and population-wide detection of signaling molecules called autoinducers. QS-controlled behaviors are unproductive when undertaken by a single bacterium but become effective when performed by the group.
Michaela J, Eickhoff, Bonnie L, Bassler
openaire   +2 more sources

Assembling a True “Olympic Gel” From over 16 000 Combinatorial DNA Rings

Advanced Materials, EarlyView.
Olympic gels are an elusive class of soft matter, consisting of molecular networks held together purely by mechanically interlocked rings. Their topological structure promises unique properties and functions, but their synthesis has proven notoriously difficult.
Sarah K. Speed, Yu‐Hsuan Peng, Azra Atabay, Krishna Gupta, Toni Müller, Carolin Fischer, Ilka M. Hermes, Jens‐Uwe Sommer, Michael Lang, Elisha Krieg   +9 more
wiley   +1 more source

The Potential of Secondary Metabolites in Medicinal Plants as Anti–Quorum Sensing in Biofilms: A Comprehensive Review

Journal of Chemistry
The formation of biofilms occurs due to a group of bacteria gathering together. The increasing of cell density will stimulate chemical signals for bacteria to communicate through quorum sensing system.
Salsabila Aqila Putri, Euis Julaeha, Natsuko Kagawa, Dikdik Kurnia   +3 more
doaj   +1 more source

Reversible Signal Binding by the Pseudomonas aeruginosa Quorum-Sensing Signal Receptor LasR

mBio, 2011
Many members of the LuxR family of acyl-homoserine lactone (acyl-HSL)-dependent quorum-sensing transcriptional activators are thought to have the unusual characteristics of requiring the signal ligand during polypeptide synthesis to fold into an active ...
Kaia J. Sappington, Ajai A. Dandekar, Ken-Ichi Oinuma, E. Peter Greenberg   +3 more
doaj   +1 more source

Quorum sensing with pheromones [PDF]

Nature Microbiology, 2019
The vast majority of fungi reproduce sexually and use secreted pheromones to signal to each other. A study now shows that these signalling molecules in the fungal plant pathogen Fusarium oxysporum activate a density-dependent autocrine signal that controls asexual spore germination.
openaire   +3 more sources

Scalable and Multifunctional PAN‐MXene Composite Fibers for Thermal Management, Photothermal Conversion, Energy Harvesting, and Sensing for Wearable Applications

Advanced Materials, EarlyView.
Electrospun PAN‐MXene nanofibers and yarns integrate enhanced thermal conductivity, photothermal conversion, and triboelectric energy harvesting within a flexible architecture. Interconnected MXene networks promote efficient phonon transport, while their surface chemistry strengthens tribo‐negative behavior, enabling a high power density of 432.7 mW m ...
Ahmadreza Moradi, Piotr K. Szewczyk, Urszula Stachewicz   +2 more
wiley   +1 more source

Optimal Census by Quorum Sensing

PLOS Computational Biology, 2015
Quorum sensing is the regulation of gene expression in response to changes in cell density. To measure their cell density, bacterial populations produce and detect diffusible molecules called autoinducers. Individual bacteria internally represent the external concentration of autoinducers via the level of monitor proteins.
Thibaud Taillefumier, Ned S Wingreen
openaire   +5 more sources

Micropillar‐Engineered Hybrid Adhesive Patch for Surface‐Conformable and Directional Adhesion

Advanced Materials Technologies, EarlyView.
This work presents a surface‐conformable hybrid adhesive integrating height‐optimized hexagonal micropillars with open‐rectangular cuts. The micropillars enhance rough‐surface contact and microscale crack arrest, while the cuts guide and reverse interfacial cracks for strong and directional adhesion. The multiscale architecture achieves robust pull‐off
Seongjin Park, Dong Kwan Kang, Haejin Bae, Ho‐Sup Jung, Hoon Eui Jeong   +4 more
wiley   +1 more source

QUORUM SENSING AND GROUP SELECTION [PDF]

Evolution, 1998
Bacteria respond to cell density by expressing genes whose products are beneficial to the population as a whole. This response is brought about through the release into the medium of signaling molecules of the class N-acyl homoserine lactones, the concentration of which determines the level of gene expression.
openaire   +2 more sources