Results 31 to 40 of about 66,203 (286)

Antioxidant activity and in vitro fluorescence imaging application of N-, O- functionalized carbon dots

open access: yesScientific Reports
Nanomaterials with dual-functions integrating diagnostic and therapeutic abilities have attracted the interest in biomedical applications, and low-dimensional carbon dots have shown their potentialities in the field owing to their versatile optical and ...
Adina Coroaba   +9 more
doaj   +1 more source

The green Knoevenagel condensation: solvent-free condensation of benzaldehydes

open access: yesGreen Chemistry Letters and Reviews, 2017
This paper presents a novel, green Knoevenagel procedure for the chemical transformation of benzaldehydes into their corresponding α,β-unsaturated acids.
Jack van Schijndel   +3 more
doaj   +1 more source

Polypeptide templating for designer hierarchical materials

open access: yesNature Communications, 2020
Despite recent progress in directed assembly of protein molecules into well-defined nanostructures, bridging materials fabrication from nano- to macroscale remains a challenge.
Hui Sun, Benedetto Marelli
doaj   +1 more source

Biodegradable and Recyclable Luminescent Mixed‐Matrix‐Membranes, Hydrogels, and Cryogels based on Nanoscale Metal‐Organic Frameworks and Biopolymers

open access: yesAdvanced Functional Materials, EarlyView.
The study presents biodegradable and recyclable mixed‐matrix membranes (MMMs), hydrogels, and cryogels using luminescent nanoscale metal‐organic frameworks (nMOFs) and biopolymers. These bio‐nMOF‐MMMs combine europium‐based nMOFs as probes for the status of the materials with the biopolymers agar and gelatine and present alternatives to conventional ...
Moritz Maxeiner   +4 more
wiley   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

open access: yesAdvanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova   +9 more
wiley   +1 more source

Biopolymers from Natural Resources [PDF]

open access: gold, 2021
Rafael Balart   +4 more
openalex   +1 more source

Composites of Shellac and Silver Nanowires as Flexible, Biobased, and Corrosion‐Resistant Transparent Conductive Electrodes

open access: yesAdvanced Functional Materials, EarlyView.
Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein   +4 more
wiley   +1 more source

Effect of Ultrasound-Treated Arabinoxylans on the Oxidative Stability of Soybean Oil

open access: yesAntioxidants, 2020
Arabinoxylans (AX) are polysaccharides with antioxidant activity and emulsifying properties, which make them an attractive alternative for its potential application as a natural antioxidant in oils. Therefore, this work aimed to investigate the effect of
Mayra A. Mendez-Encinas   +6 more
doaj   +1 more source

Innovative Non-Enzymatic Electrochemical Quantification of Cholesterol

open access: yesSensors, 2022
The use of the Liebermann–Burchard reaction in this study has been explored in the development of a simple, reliable, and robust quantitative electrochemical method to assay cholesterol, and hence provide a good alternative to colorimetric methods.
Oana Elena Carp   +2 more
doaj   +1 more source

Biomimetic Iridescent Skin: Robust Prototissues Spontaneously Assembled from Photonic Protocells

open access: yesAdvanced Functional Materials, EarlyView.
Uniform nanoparticles are induced to form arrays (photonic crystals) in the cores of biopolymer capsules, endowing these ‘protocells’ with structural color. These protocells are then assembled into large self‐standing objects, i.e., prototissues, with robust mechanical properties as well as iridescent optical properties.
Medha Rath   +6 more
wiley   +1 more source

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