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In situ Growth of ZIF-8 Nanoparticles on Graphene Oxide Nanosheets: A Multifunctional Nanoplatform for Combined Ion‐interference and Photothermal Therapy

ABSTRACT: In situ Growth of ZIF-8 Nanoparticles on Graphene Oxide Nanosheets: A Multifunctional Nanoplatform for Combined Ion‐interference and Photothermal Therapy

PROVIDER: PRJNA789922 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR17264731_1.fastq.gz	Fastqsanger.gz
	SRR17264731_2.fastq.gz	Fastqsanger.gz
	SRR17264732_1.fastq.gz	Fastqsanger.gz
	SRR17264732_2.fastq.gz	Fastqsanger.gz
	SRR17264733_1.fastq.gz	Fastqsanger.gz

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In situ Growth of ZIF-8 Nanoparticles on Graphene Oxide Nanosheets: A Multifunctional Nanoplatform for Combined Ion‐interference and Photothermal Therapy

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Project description:Ultrasound molecular imaging as a promising strategy, which involved the use of molecularly targeted contrast agents, combined the advantages of contrast-enhanced ultrasound with the photothermal effect of reduced graphene oxide (rGO).Methods and resultsThe heparin sulfate proteoglycan glypican-3 (GPC3) is a potential molecular target for hepatocellular carcinoma (HCC). In this study, we covalently linked biotinylated GPC3 antibody to PEGylated nano-rGO to obtain GPC3-modified rGO-PEG (rGO-GPC3), and then combined rGO-GPC3 with avidinylated nanobubbles (NBs) using biotin-avidin system to prepare NBs-GPC3-rGO with photothermal effect and dispersibility, solubility in physiological environment. The average size of NBs-GPC3-rGO complex was 700.4±52.9 nm due to the polymerization of biotin-avidin system. Scanning electron microscope (SEM) showed NBs-GPC3-rGO attached to human hepatocellular carcinoma HepG2 cell. The ultrasound-targeted nanobubble destruction (UTND) technology make use of the physical energy of ultrasound exposure for the improvement of rGO delivery. Compared with other control groups, the highest nanobubble destruction efficiency of NBs-GPC3-rGO was attributed to the dissection effect of rGO on UTND. This is a positive feedback effect that leads to an increase in the concentration of rGO around the HepG2 cell. So NBs-GPC3-rGO using UTND and near-infrared (NIR) irradiation resulted in cell viability within 24 h, 48 h, 72 h lower than other treatment groups.ConclusionThis work established NBs-GPC3-rGO as an ultrasonic photothermal agent due to its suitable size, imaging capability, photothermal efficiency for visual photothermal therapy in vitro.

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