Results 211 to 220 of about 1,107,230 (292)

Dynamic Obstacle Avoidance of Metamorphic Microrobots Using Concentric Sector Navigator

open access: yesAdvanced Intelligent Systems, EarlyView.
Metamorphic magnetic microrobots are navigated using a concentric sector navigator for dynamic obstacle avoidance in both microroller and swarm states. After microroller transport, citrate‐triggered dissolution releases nanoparticles that reassemble into a controllable swarm.
Zhaowen Su   +4 more
wiley   +1 more source

3D Closed‐Loop Navigation of Magnetic Microswimmers Using Vision‐Derived Depth Feedback

open access: yesAdvanced Intelligent Systems, EarlyView.
A planar magnetic microswimmer is navigated in three dimensions under a standard microscope. Image defocus supplies a real‐time depth cue, and model‐predictive control with A* planning steers the body on surfaces and in free swimming. Axial position is regulated by propulsion alone, without magnetic field gradients or extra cameras.
Yasin Cagatay Duygu   +2 more
wiley   +1 more source

Blood SOD1 Activity in ALS Patients Receiving Tofersen Treatment

open access: yesAnnals of Neurology, EarlyView.
Objective The antisense oligonucleotide tofersen is the first disease‐modifying drug for SOD1‐related amyotrophic lateral sclerosis (ALS) and was approved because of its ability to reduce SOD1 protein and neurofilament levels. The effect of tofersen on SOD1 activity is unclear but of clinical relevance because homozygous SOD1 mutations, linked to ...
Katharina Goehring   +18 more
wiley   +1 more source

Intermolecular Carbon–Carbon Naphthalene Coupling Involves a Radical Mechanism Driven by Cytochrome P450 in Alternaria alternata

open access: yesAngewandte Chemie, EarlyView.
1,8‐DHN is an important intermediate to form complex aromatic ring systems. Phenol‐coupling reactions are important for the dimerization of two molecules. Here, we show that a fungal cytochrome P450 enzyme catalyzes specific C─C bonds. ABSTRACT Dihydroxynaphthalene (DHN) derivatives are precursors of biologically important molecules, including melanin ...
Jia Gao   +8 more
wiley   +2 more sources

Covalent Immobilisation of PVA‐MA Hydrogels on Plasma‐Activated Coatings: Achieving Superior Adhesion by Reagent‐Free Formation of a Nanoscale Primer Layer

open access: yesAdvanced NanoBiomed Research, EarlyView.
Robust attachment of hydrogels to solid substrates is critical to success in cell culture where hydrostatic and contractile forces can contribute to delamination of weakly adhered gels. This novel approach forms a nanometer‐scale, reagent‐free hydrogel primer layer to provide improved resistance to delamination of subsequent bulk hydrogel layers in a ...
Sophia C. Franklin   +7 more
wiley   +1 more source

Should I Stay or Should I Go—Leveraging an Overlooked Feature of Click‐to‐Release Chemistry for Affinity Labeling

open access: yesAngewandte Chemie, EarlyView.
Click‐to‐release (C2R) chemistry is redirected from payload liberation toward ligand‐directed covalent protein labeling through a transient dihydropyridazine methide (DHP‐methide). This concept opens the way to dual‐functional systems combining covalent target engagement with controlled effector release.
Dóra Kern   +9 more
wiley   +2 more sources

Novel Interdigitated Electrode Conductometric Sensor for Rapid, Sensitive, and Selective Detection of cTnI Biomarkers in Saliva

open access: yesAdvanced NanoBiomed Research, EarlyView.
A miniaturized high resistivity silicon‐based interdigitated conductometric sensor detects cTnI at sub‐femtomolar levels with high selectivity. The device enables noninvasive testing using artificial and pooled human saliva in real‐time electrical readings. This portable biosensor offers a promising futuristic medical device providing new opportunities
Preethi Chidambaram   +8 more
wiley   +1 more source

Formal Verification for Task Description Languages. A Petri Net Approach. [PDF]

open access: yesSensors (Basel), 2019
López J   +2 more
europepmc   +1 more source

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