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Cao Y, Fan L, Gao J, Zhu X, Wu B, Wang H, Wang B, Shi J, Liu J. Magnetic and injectable Fe-doped liquid metals for controlled movement and photothermal/electromagnetic therapy. J Mater Chem B 2024; 12:2313-2323. [PMID: 38268450 DOI: 10.1039/d3tb02501b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2024]
Abstract
As a multifunctional material, gallium-based liquid metal (LM) mixtures with metal particles dispersed in the LM environment display many excellent and intriguing properties. In this study, biomaterials were prepared by mixing Fe particles with LM for easily manageable photothermal or electromagnetic therapy and evaluated. Clinically, the fabricated 5%Fe/LM sample was injectable and radiopaque, which allowed its smooth delivery through a syringe to the target tissues, where it could help achieve clear imaging under CT. Meanwhile, because of the loading of Fe particles, the 5%Fe/LM possessed a magnetic property, implying a high manipulation capability. According to the experiments, the capsule containing 5%Fe/LM when placed in an isolated pig large intestine could move as desired to the designated position through an external magnet. Further, the biosafety and low toxicity of the 5%Fe/LM were confirmed by cytotoxicity tests in vitro, and the temperature changes at the interface between the 5%Fe/LM and intestinal tissue after near-infrared (NIR) laser irradiation were determined through theoretical modeling and numerical simulation data analysis. Due to the excellent photothermal and magnetothermal effects of LM, the temperature of the 5%Fe/LM injected into the rabbit abdominal cavity could significantly increase under NIR laser or alternating magnetic field (AMF) administration. As a novel functional biomaterial, the 5%Fe/LM exhibited promising potential for designated position movement and photothermal or magnetothermal therapy in the near future.
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Affiliation(s)
- Yingjie Cao
- Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing 100084, China.
| | - Linlin Fan
- Beijing Research Institute of Traumatology and Orthopaedics, Beijing Jishuitan Hospital, Capital Medical University, Beijing 100035, China.
| | - Jianye Gao
- Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing 100084, China.
| | - Xiyu Zhu
- Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing 100084, China.
| | - Bingjie Wu
- Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing 100084, China.
| | - Hongzhang Wang
- Center of Double Helix, Tsinghua Shenzhen International Graduate School, Shenzhen 518055, China
| | - Bo Wang
- School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China
| | - Jun Shi
- Hepatopancreatobiliary Center, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing 102218, China.
| | - Jing Liu
- Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing 100084, China.
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Li Y, Qi H, Geng Y, Li L, Cai X. Research progress of organic photothermal agents delivery and synergistic therapy systems. Colloids Surf B Biointerfaces 2024; 234:113743. [PMID: 38215604 DOI: 10.1016/j.colsurfb.2024.113743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 12/27/2023] [Accepted: 01/01/2024] [Indexed: 01/14/2024]
Abstract
Cancer is currently one of the leading causes of mortality worldwide. Due to the inevitable shortcomings of conventional treatments, photothermal therapy (PTT) has attracted great attention as an emerging and non-invasive cancer treatment method. Photothermal agents (PTAs) is a necessary component of PTT to play its role. It accumulates at the tumor site through appropriate methods and converts the absorbed light energy into heat energy effectively under near-infrared light irradiation, thus increasing the temperature of the tumor area and facilitating ablation of the tumor cells. Compared to inorganic photothermal agents, which have limitations such as non-degradability and potential long-term toxicity in vivo, organic photothermal agents exhibit excellent biocompatibility and biodegradability, thus showing promising prospects for the application of PTT in cancer treatment. And these organic photothermal agents can also be engineered into nanoparticles to improve their water solubility, extend their circulation time in vivo, and specifically target tumors. Moreover, further combination of PTT with other treatment methods can effectively enhance the efficacy of cancer treatment and alleviate the side effects associated with single treatments. This article briefly introduces several common types of organic photothermal agents and their nanoparticles, and reviews the applications of PTT based on organic photothermal agents in combination with chemotherapy, photodynamic therapy, chemodynamic therapy, immunotherapy, and multimodal combination therapy for tumor treatment, which expands the ideas and methods in the field of tumor treatment.
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Affiliation(s)
- Yuan Li
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250355, PR China
| | - Haolong Qi
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250355, PR China
| | - Yingjie Geng
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250355, PR China
| | - Lingjun Li
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250355, PR China
| | - Xiaoqing Cai
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250355, PR China.
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