Results 51 to 60 of about 64,747 (261)

Minimally Invasive Optical Biopsy for Oximetry [PDF]

open access: yes, 2017
The study of localised oxygen saturation in blood vessels can shed light on the etiology and progression of many diseases with which hypoxia is associated.
Brewer, James M.   +2 more
core   +1 more source

Infrared Machine Vision System Based on Te NWs‐Au NPs Plasmonic Optoelectronic Memristor for Motion Detection

open access: yesAdvanced Science, EarlyView.
A plasmonic optoelectronic memristor based on Te nanowires‐Au nanoparticles/ι‐carrageenan enables IR‐programmed and visiblelight‐erased non‐volatile conductance. The all‐photonic write/erase scheme supports in‐sensor logic and real‐time motion detection in darkness.
Jingyao Bian   +7 more
wiley   +1 more source

Development of Sustainable Bioplastic Composite Films from Cocoa Pod Husk Waste Cellulose and Kappa-Carrageenan

open access: yesCaraka Tani: Journal of Sustainable Agriculture
Cocoa pod husk (CPH), typically considered agricultural waste, contains cellulose suitable for bioplastic production, offering a sustainable alternative to synthetic plastics. Its reinforcement with kappa-carrageenan is designed to improve the properties
Esa Ghanim Fadhallah   +5 more
doaj   +1 more source

Amperometric enzyme sensor to check the total antioxidant capacity of several mixed berries. comparison with two other spectrophotometric and fluorimetric methods [PDF]

open access: yes, 2015
The aim of this research was to test the correctness of response of a superoxide dismutase amperometric biosensor used for the purpose of measuring and ranking the total antioxidant capacity of several systematically analysed mixed berries.
CAMPANELLA, Luigi   +4 more
core   +2 more sources

Scalable Wheat Bran‐Algae Composites for Edible Electronics with Spray‐Coated Food‐Grade Conductive Inks

open access: yesAdvanced Electronic Materials, EarlyView.
A fully edible wheat bran–algae substrate is fabricated through scalable mould‐compression and spray‐coating, enabling robust, food‐grade platforms for sustainable electronics. A chitosan barrier improves water resistance and ink compatibility, while activated‐carbon conductive films form uniform electrodes with Ohmic behaviour.
Jaz Johari   +7 more
wiley   +1 more source

Paper surface modification strategies employing N-SBA-15/polymer composites in bioanalytical sensor design [PDF]

open access: yes, 2019
In this work, different paper surface modification strategies were compared to obtain an amine functionalized SBA-15 (N-SBA-15) composite for paper-based device development. The synthesized N-SBA-15 was characterized by N 2 adsorption-desorption isotherm,
Messina, Germán Alejandro   +7 more
core   +1 more source

Aqueous Zinc‐Based Batteries: Active Materials, Device Design, and Future Perspectives

open access: yesAdvanced Energy Materials, EarlyView.
This review conducts a comprehensive analysis of aqueous zinc‐based batteries (AZBs) based on their intrinsic mechanisms, including redox reactions, ion intercalation reactions, alloying reactions, electrochemical double‐layer reactions, and mixed mechanisms, systematically discussing recent advancements in each type of AZBs.
Yan Ran, Fang Dong, Shuhui Sun, Yong Lei
wiley   +1 more source

The antiviral activity of iota-, kappa-, and lambda-carrageenan against COVID-19: A critical review

open access: yesClinical Epidemiology and Global Health, 2021
Objective: There is no specific antiviral treatment available for coronavirus disease 2019 (COVID-19). Among the possible natural constituents is carrageenan, a polymer derived from marine algae that possesses a variety of antiviral properties.
Andri Frediansyah
doaj   +1 more source

Effect of Imidazolium Concentration in Densely Functional Polymer Binder on Robust Electrochemical Kinetics and Cycling Performance of Lithium Iron Phosphate Cathode

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
The improved performance of the cathodic half‐cell containing poly(oxycarbonylmethylene 1‐allyl‐3‐methylimidazolium) (PMAI) binder (PMAI/LFP) is attributed to the ion conduction properties of imidazolium‐functionalized polymer, which participates in cathode‐electrolyte interphase (CEI) formation as confirmed by X‐ray photoelectron spectroscopy and ...
Amarshi Patra   +3 more
wiley   +1 more source

Over-the-counter carrageenan-based sprays may interfere with PCR testing of nasopharyngeal swabs to detect SARS-CoV-2.

open access: yesPLoS ONE
Carrageenan-containing nasal sprays, available over-the-counter (OTC), are often marketed as having anti-viral effects. Carrageenan belongs to the glycosaminoglycan family alongside heparin, and heparin is known to inhibit real-time quantitative ...
Taylor Corocher   +6 more
doaj   +1 more source

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