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1.
Int J Mol Sci ; 24(21)2023 Oct 30.
Artículo en Inglés | MEDLINE | ID: mdl-37958768

RESUMEN

Growth in population and increased environmental awareness demand the emergence of new energy sources with low environmental impact. Lignocellulosic biomass is mainly composed of cellulose, lignin, and hemicellulose. These materials have been used in the energy industry for the production of biofuels as an eco-friendly alternative to fossil fuels. However, their use in the fabrication of small electronic devices is still under development. Lignocellulose-based triboelectric nanogenerators (LC-TENGs) have emerged as an eco-friendly alternative to conventional batteries, which are mainly composed of harmful and non-degradable materials. These LC-TENGs use lignocellulose-based components, which serve as electrodes or triboelectric active materials. These materials can be derived from bulk materials such as wood, seeds, or leaves, or they can be derived from waste materials from the timber industry, agriculture, or recycled urban materials. LC-TENG devices represent an eco-friendly, low-cost, and effective mechanism for harvesting environmental mechanical energy to generate electricity, enabling the development of self-powered devices and sensors. In this study, a comprehensive review of lignocellulosic-based materials was conducted to highlight their use as both electrodes and triboelectric active surfaces in the development of novel eco-friendly triboelectric nano-generators (LC-TENGs). The composition of lignocellulose and the classification and applications of LC-TENGs are discussed.


Asunto(s)
Agricultura , Biocombustibles , Biomasa , Celulosa
2.
ACS Nano ; 17(17): 16308-16325, 2023 09 12.
Artículo en Inglés | MEDLINE | ID: mdl-37643407

RESUMEN

Owing to their uniform and tunable particle size, pore size, and shape, along with their modular surface chemistry and biocompatibility, mesoporous silica nanoparticles (MSNs) have found extensive applications as nanocarriers to deliver therapeutic, diagnostic and combined "theranostic" cargos to cells and tissues. Although thoroughly investigated, MSN have garnered FDA approval for only one MSN system via oral administration. One possible reason is that there is no recognized, reproducible, and widely adopted MSN synthetic protocol, meaning not all MSNs are created equal in the laboratory nor in the eyes of the FDA. This manuscript provides the sol-gel and MSN research communities a reproducible, fully characterized synthetic protocol to synthesize MSNs and corresponding lipid-coated MSN delivery vehicles with predetermined particle size, pore size, and drug loading and release characteristics. By carefully articulating the step-by-step synthetic procedures and highlighting critical points and troubleshooting, augmented with videos and schematics, this Article will help researchers entering this rapidly expanding field to yield reliable results.


Asunto(s)
Nanomedicina , Nanopartículas , ARN Interferente Pequeño , ARN Mensajero , Lípidos
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