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Magnetic Carboxymethyl Cellulose-Silk Fibroin Hydrogel: A Ternary Nanobiocomposite Exhibiting Excellent Biological Activity and in Vitro Hyperthermia of Cancer Therapy Publisher Pubmed



Mohammadi A1 ; Eivazzadehkeihan R2 ; Aliabadi HAM3 ; Kashtiaray A1 ; Cohan RA2 ; Bani MS4 ; Komijani S5, 6 ; Etminan A7 ; Salehpour N8 ; Maleki A1 ; Mahdavi M9
Authors

Source: Journal of Biotechnology Published:2023


Abstract

In this work, a magnetic nanobiocomposite scaffold based on carboxymethylcellulose (CMC) hydrogel, silk fibroin (SF), and magnetite nanoparticles was fabricated. The structural properties of this new magnetic nanobiocomposite were characterized by various analyses such as FT-IR, XRD, EDX, FE-SEM, TGA and VSM. According to the particle size histogram, most of the particles were between 55 and 77 nm and the value of saturation magnetization of this nanobiocomposite was reported 41.65 emu.g− 1. Hemolysis and MTT tests showed that the designed magnetic nanobiocomposite was compatible with the blood. In addition, the viability percentage of HEK293T normal cells did not change significantly, and the proliferation rate of BT549 cancer cells decreased in its vicinity. EC50 values for HEK293T normal cells after 48 h and 72 h were 3958 and 2566, respectively. Also, these values for BT549 cancer cells after 48 h and 72 h were 0.4545 and 0.9967, respectively. The efficiency of fabricated magnetic nanobiocomposite was appraised in a magnetic fluid hyperthermia manner. The specific absorption rate (SAR) of 69 W/g (for the 1 mg/mL sample at 200 kHz) was measured under the alternating magnetic field (AMF). © 2023
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