Please use this identifier to cite or link to this item:
https://hdl.handle.net/2445/193984
Title: | Polysilicon Microchips Functionalized with Bipyridinium-Based Cyclophanes for a Highly Efficient Cytotoxicity in Cancerous Cells |
Author: | Limón, David Hornickγ, Jessica E. Cai, Kang Beldjoudi, Yassine Plaza, José A. Duch, Marta Pérez García, M. Lluïsa (Maria Lluïsa) Stoddart, J. Frasser |
Keywords: | Càncer Nanopartícules Nanoquímica Cancer Nanoparticles Nanochemistry |
Issue Date: | 2022 |
Publisher: | American Chemical Society |
Abstract: | The use of micrometric-sized vehicles could greatly improve selectivity of cytotoxic compounds as their lack of self-diffusion could maximize their retention in tissues. We have used polysilicon microparticles (SiμP) to conjugate bipyridinium-based compounds, able to induce cytotoxicity under regular intracellular conditions. Homogeneous functionalization in suspension was achieved, where the open-chain structure exhibits a more dense packing than cyclic analogues. The microparticles internalized induce high cytotoxicity per particle in cancerous HeLa cells, and the less densely packed functionalization using cyclophanes promotes higher cytotoxicity per bipy than with open-chain analogues. The self-renewing ability of the particles and their proximity to cell membranes may account for increased lipid peroxidation, achieving toxicity at much lower concentrations than that in solution and in less time, inducing highly efficient cytotoxicity in cancerous cells. Keywords: HeLa cells; bipyridinium; cancer; cytotoxicity; lipid peroxidation; polysilicon microparticles. |
Note: | Versió postprint del document publicat a: https://doi.org/10.1021/acsnano.1c08090 |
It is part of: | ACS Nano, 2022, vol. 16, p. 5358-5375 |
URI: | https://hdl.handle.net/2445/193984 |
Related resource: | https://doi.org/10.1021/acsnano.1c08090 |
ISSN: | 1936-0851 |
Appears in Collections: | Articles publicats en revistes (Farmacologia, Toxicologia i Química Terapèutica) |
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