Results 51 to 60 of about 18,287,362 (301)

Foodborne doping and supervision in sports

open access: yesFood Science and Human Wellness, 2023
Cases of foodborne doping are frequently reported in sports events and can cause severe consequences for athletes. The foodborne doping can be divided into natural endogenous and artificially added foods according to the sources, including anabolic ...
Wei Chen   +3 more
doaj   +1 more source

Controlling Molecular Doping in Organic Semiconductors [PDF]

open access: yesAdvanced Materials, 2017
AbstractThe field of organic electronics thrives on the hope of enabling low‐cost, solution‐processed electronic devices with mechanical, optoelectronic, and chemical properties not available from inorganic semiconductors. A key to the success of these aspirations is the ability to controllably dope organic semiconductors with high spatial resolution ...
Ian E. Jacobs, Adam J. Moulé
openaire   +4 more sources

Additive Manufacturing of Alumina‐Reinforced Elastomers

open access: yesAdvanced Engineering Materials, EarlyView.
Vat‐photopolymerized elastomers reinforced with platelet‐shaped alumina exhibited preferential orientation, reduced porosity, and significantly enhanced mechanical performance. A 3 wt% platelet loading increased tensile strength from 12.4 to 45.7 MPa, highlighting the critical role of filler morphology in elastomeric VPP composites.
Majid Barzegar Keyvani   +6 more
wiley   +1 more source

Advancing the Chemical Characterization of Eperua oleifera Duke Oleoresin: A UHPLC-HRMS-Based Approach

open access: yesPlants
Eperua oleifera Ducke (Fabaceae), commonly known as copaíba-jacaré, is traditionally used for therapeutic purposes, like Copaifera oleoresins. Previous GC-MS studies reported its chemical composition as mainly composed of diterpenic acids, consistent ...
Rayssa Ribeiro   +6 more
doaj   +1 more source

Multilayer Self‐Limiting Electrospray Deposition via Stepped Voltage Bias

open access: yesAdvanced Engineering Materials, EarlyView.
Self‐limiting electrospray deposition (SLED) uses a high voltage to generate and deposit a charged payload on a target surface. The coating retains its charge, repelling newly arriving material. SLED thickness can be decreased by applying a secondary bias to the target.
Madhuri Deb   +3 more
wiley   +1 more source

Trema micranthum (L.) Blume as a new source of cannabinoids

open access: yesScientific Reports
Trema micranthum (Cannabaceae) has emerged as a promising new source of cannabinoids, including cannabidiol (CBD). Given the substantial medicinal demand for cannabinoids and the regulatory challenges associated with Cannabis sativa due to the presence ...
Rayssa Ribeiro   +7 more
doaj   +1 more source

Medicinal Amazonian Oleoresins: An Eco-Friendly Chemical Fingerprinting Method

open access: yesPlants
Oleoresins are complex natural lipophilic matrices traditionally analyzed using chromatographic techniques that require extensive sample preparation, derivatization, and authentic standards.
Rayssa Ribeiro   +4 more
doaj   +1 more source

Beta2-Agonist Doping Control and Optical Isomer Challenges

open access: yesSports Medicine, 2016
The World Anti-Doping Agency (WADA) currently allows therapeutic use of the beta2-agonists salbutamol, formoterol and salmeterol when delivered via inhalation despite some evidence suggesting these anti-asthma drugs may be performance enhancing.
Glenn Jacobson, J. P. Fawcett
semanticscholar   +1 more source

Precise Control of Perovskite Crystallization Kinetics via Sequential A‐Site Doping

open access: yesAdvances in Materials, 2020
Two‐step‐fabricated FAPbI3‐based perovskites have attracted increasing attention because of their excellent film quality and reproducibility. However, the underlying film formation mechanism remains mysterious.
Minchao Qin   +15 more
semanticscholar   +1 more source

Uniform Amorphization of Crystalline Silicon Surfaces Enabled by Deep Ultraviolet Femtosecond Laser Pulses

open access: yesAdvanced Engineering Materials, EarlyView.
Deep‐UV (258 nm) femtosecond pulses enable uniform amorphous silicon writing on Si(100)/(111) with a six‐fold larger fluence amorphization window than NIR methods. Optimized fluence and overlap yield 20–45 nm uniform and continuous amorphous layers. Microscopy shows sharp interfaces, and real‐time reflectivity reveals nanosecond melt–resolidification ...
Wissal Benali   +5 more
wiley   +1 more source

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