Liquid‐Templating Aerogels

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(42)

Published: Aug. 10, 2023

Abstract Modern materials science has witnessed the era of advanced fabrication methods to engineer functionality from nano‐ macroscales. Versatile and additive manufacturing are developed, but ability design a material for given application is still limited. Here, novel strategy that enables target‐oriented ultra‐lightweight aerogels with on‐demand characteristics introduced. The process relies on controllable liquid templating through interfacial complexation generate tunable, stimuli‐responsive 3D‐structured (multiphase) filamentous templates. methodology involves nanoscale chemistry microscale assembly nanoparticles (NPs) at liquid–liquid interfaces produce hierarchical macroscopic featuring multiscale porosity, ultralow density (3.05–3.41 mg cm −3 ), high compressibility (90%) combined elastic resilience instant shape recovery. challenges overcome facing aerogels, including poor mechanical integrity inability form predefined 3D constructs functionality, multitude applications. nature coined tunable electromagnetic interference shielding specific effectiveness (39 893 dB 2 g −1 one highest‐ever reported oil‐absorption capacities (487 times initial weight aerogel chloroform), be obtained. These properties originate engineerable templating, pushing boundaries lightweight systematic function

Language: Английский

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Controlling the critical parameters of ultrasonication to affect the dispersion state, isolation, and chiral nematic assembly of cellulose nanocrystals

Ultrasonics Sonochemistry, Journal Year: 2023, Volume and Issue: 99, P. 106581 - 106581

Published: Sept. 3, 2023

Cellulose nanocrystals (CNCs) are typically extracted from plants and present a range of opto-mechanical properties that warrant their use for the fabrication sustainable materials. While commercialization is ongoing, extraction at large scale still being optimized. Ultrasonication well-established routinely used technology (re-) dispersing and/or isolating plant-based CNCs without need additional reagents or chemical processes. Several critical ultrasonication parameters, such as time, amplitude, energy input, play dominant roles in reducing particle size altering morphology CNCs. Interestingly, this can be coupled with other methods to generate moderate high yields Besides, ultrasonics treatment also has significant impact on dispersion state surface chemistry Accordingly, ability self-assemble into liquid crystals subsequent superstructures can, example, imbue materials finely tuned structural colors. This article gives an overview primary functions arising parameters stabilizing CNCs, producing combination promising methods, highlighting examples where design photonic using nanocrystal-based celluloses substantially impacted.

Language: Английский

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Synthesis and characterization of chitosan nanofibers for wound healing and drug delivery application

Journal of Drug Delivery Science and Technology, Journal Year: 2023, Volume and Issue: 87, P. 104858 - 104858

Published: Aug. 17, 2023

Language: Английский

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All bio-based chiral nematic cellulose nanocrystals films under supramolecular tuning by chitosan/deacetylated chitin nanofibers for reversible multi-response and sensor application

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 466, P. 143148 - 143148

Published: April 23, 2023

Language: Английский

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Barley – a yet un-tapped feedstock for improved vegetable protein-based wood adhesives

Journal of Materials Chemistry A, Journal Year: 2023, Volume and Issue: 11(21), P. 11310 - 11325

Published: Jan. 1, 2023

A desirable green biomass adhesive has been developed from industrial waste (barley brewers' grains) and soy protein.

Language: Английский

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