Sustainable Synthesis of Highly Biocompatible 2D Boron Nitride Nanosheets
Autor: | Marina Llenas, Lorenzo Cuenca, Carla Santos, Igor Bdikin, Gil Gonçalves, Gerard Tobías-Rossell |
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Přispěvatelé: | Ministerio de Ciencia, Innovación y Universidades (España), Fundação para a Ciência e a Tecnologia (Portugal), European Commission, European Research Council, Llenas, Marina, Santos, Carla, Bdikin, Igor, Gonçalves, Gil, Tobias, Gerard |
Rok vydání: | 2022 |
Předmět: |
Sonication
Layered compounds Green chemistry Cytotoxicity Surfactant BNCT sonication biocompatibility green chemistry 2D materials layered compounds cytotoxicity surfactant pluronic acid F127 functionalization Medicine (miscellaneous) Biocompatibility Pluronic acid F127 Functionalization General Biochemistry Genetics and Molecular Biology |
Zdroj: | Biomedicines; Volume 10; Issue 12; Pages: 3238 |
ISSN: | 2227-9059 |
Popis: | This article belongs to the Special Issue Bio-Nano Interfaces: From Biosensors to Nanomedicines 2D ultrafine nanomaterials today represent an emerging class of materials with very promising properties for a wide variety of applications. Biomedical fields have experienced important new achievements with technological breakthroughs obtained from 2D materials with singular properties. Boron nitride nanosheets are a novel 2D layered material comprised of a hexagonal boron nitride network (BN) with interesting intrinsic properties, including resistance to oxidation, extreme mechanical hardness, good thermal conductivity, photoluminescence, and chemical inertness. Here, we investigated different methodologies for the exfoliation of BN nanosheets (BNNs), using ball milling and ultrasound processing, the latter using both an ultrasound bath and tip sonication. The best results are obtained using tip sonication, which leads to the formation of few-layered nanosheets with a narrow size distribution. Importantly, it was observed that with the addition of pluronic acid F127 to the medium, there was a significant improvement in the BN nanosheets (BNNs) production yield. Moreover, the resultant BNNs present improved stability in an aqueous solution. Cytotoxicity studies performed with HeLa cells showed the importance of taking into account the possible interferences of the nanomaterial with the selected assay. The prepared BNNs coated with pluronic presented improved cytotoxicity at concentrations up to 200 μg mL-1 with more than 90% viability after 24 h of incubation. Confocal microscopy also showed high cell internalization of the nanomaterials and their preferential biodistribution in the cell cytoplasm. This research was funded by the ERC Consolidator Grant NEST (725743). ICMAB acknowledges financial support from the Spanish Ministry of Economy and Competitiveness (Spain), through the “Severo Ochoa” Programme for Centres of Excellence in R&D (CEX2019-000917-S). G.G. gratefully acknowledges the Portuguese Science Foundation (FCT) for Programme Stimulus of Scientific Employment–Individual Support (CEECIND/01913/2017), and financial support of project CARBONCT (2022.03596.PTDC) and TEMA by the projects UIDB/00481/2020 and UIDP/00481/2020 and CENTRO-01–0145-FEDER-022083–Centro Portugal Regional Operational Programme (Centro 2020), under the PORTUGAL 2020 Partnership Agreement, through the European Regional Development Fund. With funding from the Spanish government through the ‘Severo Ochoa Centre of Excellence’ accreditation (CEX2019-000917-S). |
Databáze: | OpenAIRE |
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