Results 41 to 50 of about 2,862,810 (245)

Ratiometric upconversion nanothermometry with dual emission at the same wavelength decoded via a time-resolved technique

open access: yesNature Communications, 2020
Traditional ratiometric temperature monitoring is challenging due to the variation in tissue absorption and scattering of different wavelengths. Here, the authors show improved accuracy by using emission at the same wavelength, but different luminescent ...
Xiaochen Qiu   +5 more
doaj   +1 more source

Iodine Promoted Ultralow Zn Nucleation Overpotential and Zn-Rich Cathode for Low-Cost, Fast-Production and High-Energy Density Anode-Free Zn-Iodine Batteries

open access: yesNano-Micro Letters, 2022
The anode-free design is a promising strategy to increase the energy density of aqueous Zn metal batteries (AZMBs). However, the scarcity of Zn-rich cathodes and the rapid loss of limited Zn greatly hinder their commercial applications.
Yixiang Zhang   +7 more
doaj   +1 more source

Innovative Fibrous Materials Loaded with 5-Nitro-8-hydroxyquinoline via Electrospinning/Electrospraying Demonstrate Antioxidant, Antimicrobial and Anticancer Activities

open access: yesAntioxidants, 2023
A new type of fibrous mat based on a cellulose derivative—cellulose acetate (CA) or CA and water-soluble polymers (polyvinylpyrrolidone, PVP or poly(vinyl alcohol), PVA)—loaded with the model drug 5-nitro-8-hydroxyquinoline (5N) was fabricated via ...
Mariya Spasova   +8 more
doaj   +1 more source

Plastics of the Future? The Impact of Biodegradable Polymers on the Environment and on Society.

open access: yesAngewandte Chemie, 2018
In recent years the littering of plastics and the problems related to their persistence in the environment have become a major focus in both research and the news.
Tobias Haider   +4 more
semanticscholar   +1 more source

Lignocellulosic biomass: a sustainable platform for the production of bio-based chemicals and polymers [PDF]

open access: yes, 2015
The demand for petroleum dependent chemicals and materials has been increasing despite the dwindling of their fossil resources. As the dead-end of petroleum based industry has started to appear, today's modern society has to implement alternative energy ...
Furkan H. Isikgor, R. Becer
semanticscholar   +1 more source

Hyperbranched polyester polybenzoylcarbamate doped with palladium ions and its catalytic activity in hydrogenation reaction

open access: yesDiscover Materials
Metal complexes of hyperbranched polymers have attracted attention as potential catalysts due to their unique, tunable structure. Hyperbranched polyester polybenzoylcarbamate was synthesized by the reaction of second-generation hyperbranched polyester ...
Alina Vagapova   +3 more
doaj   +1 more source

Preparation and Characterization of Semi-IPN Cryogels Based on Polyacrylamide and Poly(N,N-dimethylaminoethyl methacrylate); Functionalization of Carrier with Monochlorotriazinyl-β-cyclodextrin and Release Kinetics of Curcumin

open access: yesMolecules, 2021
Curcumin (CCM) is a natural hydrophobic polyphenol known for its numerous applications in the food industry as a colorant or jelly stabilizer, and in the pharmaceutical industry due to its anti-inflammatory, antibacterial, antioxidant, anti-cancer, and ...
Ecaterina Stela Dragan   +4 more
doaj   +1 more source

Introducing Porphyrin Units by Random Copolymerization Into NDI-Based Acceptor for All Polymer Solar Cells

open access: yesFrontiers in Chemistry, 2020
Naphthalene diimide (NDI)-based polymer N2200 is a promising organic polymer acceptor for all-polymer solar cells (all-PSCs), but its inherent shortcomings like poor extinction coefficient and strong aggregation limit further performance optimization of ...
Jinliang Liu   +10 more
doaj   +1 more source

Experimental Validation of a Micro-Extrusion Set-Up with In-Line Rheometry for the Production and Monitoring of Filaments for 3D-Printing

open access: yesMicromachines, 2023
The main objective of this work is to validate an in-line micro-slit rheometer and a micro-extrusion line, both designed for the in-line monitoring and production of filaments for 3D printing using small amounts of material.
João Sousa   +3 more
doaj   +1 more source

Electrical and Electrochemical Properties of Conducting Polymers

open access: yesPolymers, 2017
Conducting polymers (CPs) have received much attention in both fundamental and practical studies because they have electrical and electrochemical properties similar to those of both traditional semiconductors and metals.
Thanh-Hai Le   +2 more
semanticscholar   +1 more source

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