Results 111 to 120 of about 140,146 (333)

Strain‐Sensitive Thermochromic Smart Electronic Skin for Joint and Spine Healthcare Applications

open access: yesAdvanced Science, EarlyView.
iStretch, a multifunctional e‐skin integrating durable strain sensing, adaptive heat therapy, and visual feedback, is presented for joint and spine rehabilitation. Featuring a bilayer graphene–liquid metal design, iStretch offers high sensitivity, real‐time responsiveness, and user interactivity, enabling personalized musculoskeletal care through ...
Shicheng Fan   +5 more
wiley   +1 more source

Interplay of Backbone Conformation, Morphology and Thermoelectric Properties of Benzodifuranone‐Isatin Acceptor Polymers

open access: yesAdvanced Electronic Materials, EarlyView.
Modification of polymer backbone via halogenation and comonomer selection leads to conjugated backbones of different stereoelectronic properties, thin film morphologies, and electrical characteristics. The interplay of conformational isomerism, coplanarity, backbone curvature, backbone orientation, and ordering in thin films, electrical conductivity ...
Diego R. Hinojosa   +11 more
wiley   +1 more source

When Bigger is Better: Lanthanum Complexes of Bis(phenoxy‐amidine) FAlen Ligands as Unique Catalysts for the Isoselective Ring‐Opening Polymerization of Racemic β‐Lactones

open access: yesAngewandte Chemie, EarlyView.
Discrete lanthanum complexes supported by new bis(phenoxy‐amidine) ligands act as highly efficient ring‐opening polymerization (ROP) catalysts of simple and functional β‐propiolactones rac‐BLR under mild conditions, returning in a controlled manner the corresponding linear polymers PBLR with high isoselectivity, no matter the nature and polarity of the
Thanh‐Tu Bui   +7 more
wiley   +2 more sources

Physiologically‐Based Pharmacokinetic Modeling of Atorvastatin Incorporating Delayed Gastric Emptying and Acid‐to‐Lactone Conversion

open access: yesCPT: Pharmacometrics & Systems Pharmacology, 2019
The drug–drug interaction profile of atorvastatin confirms that disposition is determined by cytochrome P450 (CYP) 3A4 and organic anion transporting polypeptides (OATPs).
Bridget L. Morse   +9 more
doaj   +1 more source

Photochemical Approaches to Complex Chemotypes: Applications in Natural Product Synthesis. [PDF]

open access: yes, 2016
The use of photochemical transformations is a powerful strategy that allows for the formation of a high degree of molecular complexity from relatively simple building blocks in a single step. A central feature of all light-promoted transformations is the
Kärkäs, Markus D.   +2 more
core   +2 more sources

Skin‐Covered Biohybrid Robotic Finger with Bilayered Permeable Subcutaneous Support for Internal Hydration Supplement

open access: yesAdvanced Intelligent Systems, EarlyView.
A bilayered permeable subcutaneous support system is developed to address the hydration challenge in skin‐covered biohybrid robots. Consisting of a perforated skeletal layer and a sponge‐like polyvinyl alcohol hydrogel, the system enables fluid flow, nutrient diffusion, and mechanical support.
Keisuke Ohta   +3 more
wiley   +1 more source

Plant sesquiterpene lactones

open access: yesPhilosophical Transactions of the Royal Society B: Biological Sciences
Sesquiterpene lactones (STLs) are a prominent group of plant secondary metabolites predominantly found in the Asteraceae family and have multiple ecological roles and medicinal applications. This review describes the evolutionary and ecological significance of STLs, highlighting their roles in plant defence mechanisms against herbivory and as ...
Olivia Agatha   +3 more
openaire   +3 more sources

Determination of the lactone and lactone plus carboxylate forms of 9-aminocamptothecin in human plasma by sensitive high-performance liquid chromatography with fluorescence detection [PDF]

open access: yes, 1997
Two sensitive reversed-phase high-performance liquid chromatographic fluorescence methods, with simple sample handling at the site of the patient, are described for the determination of the lactone and lactone plus carboxylate forms of g ...
Loos, W.J. (Walter)   +5 more
core   +3 more sources

Synthesis of Crosslinked Biopolyesters Catalyzed by Natural Amino Acids

open access: yesAsian Journal of Organic Chemistry, EarlyView.
Highly crosslinked bio‐polyesters were synthesized via the ROCOP reaction between epoxidized sunflower oil and biobased cyclic anhydrides. The resulting materials were comprehensively characterized by FT‐IR, TGA, and DSC. A cross‐linked network in the bio‐based polymers has been confirmed by dynamic mechanical analysis.
Enrique Francés‐Poveda   +9 more
wiley   +1 more source

Exo‐Selective Intramolecular (4+3) Cycloadditions to Trans‐Fused Perhydroazulenes: An Asymmetric Formal Synthesis of (−)‐Pseudolaric Acid B

open access: yesAngewandte Chemie, EarlyView.
We present an asymmetric formal synthesis of pseudolaric acid B, for which we developed a new family of substrates with an epoxide geminally tethered to a sidechain bearing a furan, which undergoes a TESOTf‐catalyzed intramolecular (4+3) cycloaddition to yield the trans‐fused perhydroazulene core and the requisite quaternary stereocenter of the natural
Zengsheng Yin   +7 more
wiley   +2 more sources

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