Enhanced Non-Invasive Radio Frequency Heating Using 2D Pyrite (Pyritene)

Autor(es)

Rajeev, Karthik ; Ipaves, Bruno ; de Oliveira, Caique Campos ; Raman, Sreeram Punathil ; Kar, Swastik ; Galvao, Douglas ; Autreto, Pedro Alves da Silva ; Tiwary, Chandra Sekhar

• Tipo de documento: Artigo Científico
• Fonte: SMALL METHODS; v. N/A, p. 13-pg., 2025-02-05.

Resumo

Radiofrequency (RF) heating is a new, less invasive alternative to invasive heating methods that use nanoparticles for tumour therapy. But pinpoint local heating is still hard. Molecular interactions form a hybrid structure with unique electrical characteristics that enable RF heating in this work, which explores RF heating in a biological cell (yeast)-2D FeS2 system. Substantial processes have been uncovered via experimental investigations and density functional theory (DFT) computations. At 3 W and 50 MHz, RF heating reaches 54 degrees C in 40 s, which is enough to kill yeast cells, while current-voltage measurements reveal ionic diode-like properties. Interactions between yeast lipid molecules and 2D FeSk, as shown by density-functional theory calculations, cause an imbalance in the distribution of charges and the creation of polar, conductive channels. Insights into biological heating applications based on radio frequency (RF) technology are offered by this work, which lays forth a framework for investigating 2D material-biomolecule interactions. (AU)

• Processo FAPESP: 13/08293-7 - CECC - Centro de Engenharia e Ciências Computacionais
• Beneficiário: Munir Salomao Skaf
• Modalidade de apoio: Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs
• Processo FAPESP: 24/11016-0 - Explorando novas arquiteturas bidimensionais: Propriedades Estruturais, Mecânicas e Eletrônicas de Sólidos não-van der Waals
• Beneficiário: Bruno Bueno Ipaves Nascimento
• Modalidade de apoio: Bolsas no Brasil - Programa Fixação de Jovens Doutores
• Processo FAPESP: 24/11376-6 - Catalisadores pH-Universais Baseados em Nanoestruturas 2D e Heteroestruturas de van der Waals para Reações de Evolução de Hidrogênio
• Beneficiário: Caique Campos de Oliveira
• Modalidade de apoio: Bolsas no Brasil - Doutorado