Dopamine-assisted one-pot synthesis of gold nanoworms and their application as photothermal agents

Liao, Zhengfang; Zhang, Wei; Qiao, Zhuangzhuang; Luo, Jianbin; Niwaer, A Erpuding · Ai; Meng, Xiaoqi; Wang, Hongyue; Li, Xinhua; Zuo, Fang; Zhao, Zhigang

doi:10.1016/j.jcis.2019.11.055

Cited by 26 publications

(19 citation statements)

References 49 publications

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“…Next, the Fourier transform infrared (FTIR) spectra for PDA, Fe 3 O 4, and Fe 3 O 4 @PDA nanocomposites were generated ( Figure 1E ). PDA exhibited characteristic peaks at 3,210 cm −1 (ν N–H ), 2,930 cm −1 (ν C–H ) ( Fang et al, 2010 ), 1,635 cm −1 (ν arC-C ), 1,400 cm −1 (ν N–C ), and 1,113 cm −1 (ν arC-O ) ( Liao et al, 2020 ) corresponding to N-H bond, C-H bond, aromatic ring, N-C bond, and C-O bond stretching vibrations, respectively. The Fe 3 O 4 spectrum exhibited a characteristic peak at 584 cm −1 (ν Fe-O ) corresponding to the Fe-O bond.…”

Section: Resultsmentioning

confidence: 99%

Synthesis of Fe3O4/PDA Nanocomposites for Osteosarcoma Magnetic Resonance Imaging and Photothermal Therapy

Zhang

Ning

Wang

et al. 2022

Front. Bioeng. Biotechnol.

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Osteosarcomas commonly develop in the metaphysis of the long diaphysis, resulting in pronounced malignancy and high rates of early pulmonary metastasis. At present, osteosarcoma patients exhibit relatively poor survival rates owing these metastases and to the emergence of tumor chemoresistance. As such, there is an urgent need to identify other approaches to treating affected patients. Herein, we synthesized Fe3O4@PDA nanocomposites that exhibited excellent biocompatibility and low toxicity in human and animal model systems. The resultant nanoparticles were able to improve T2 magnetic resonance imaging and to enhance the signal-to-noise ratio associated with osteosarcoma tumors in animal models. Moreover, we were able to successfully leverage these Fe3O4@PDA particles as a photothermal agent capable of significantly inhibiting the growth of tumors and preventing their metastasis to the lung compartment. Together, these results highlight a novel therapeutic platform that has the potential to guide both the more effective diagnosis and treatment of osteosarcoma patients in clinical applications.

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Section: Resultsmentioning

confidence: 99%

Synthesis of Fe3O4/PDA Nanocomposites for Osteosarcoma Magnetic Resonance Imaging and Photothermal Therapy

Zhang

Ning

Wang

et al. 2022

Front. Bioeng. Biotechnol.

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“…With NIR irradiation, AuNWs revealed antibacterial activities of >80% and 90% for E. coli and S. aureus , respectively. However, without NIR laser irradiation, AuNWs only showed antibacterial activities of <20% for both E. coli and S. aureus [ 39 ].…”

Section: Metal-based Nanomaterialsmentioning

confidence: 99%

“… The proposed synthetic mechanism for the formation of gold nanoworms (AuNWs). Reproduced from [ 39 ], with permission from Elsevier, 2020. …”

Section: Figurementioning

confidence: 99%

Nanomaterials for the Photothermal Killing of Bacteria

et al. 2020

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An upsurge in the multidrug-resistant (MDR) bacterial pestilence is a global cause for concern in terms of human health. Lately, nanomaterials with photothermal effects have assisted in the efficient killing of MDR bacteria, attributable to their uncommon plasmonic, photocatalytic, and structural properties. Examinations of substantial amounts of photothermally enabled nanomaterials have shown bactericidal effects in an optimized time under near-infrared (NIR) light irradiation. In this review, we have compiled recent advances in photothermally enabled nanomaterials for antibacterial activities and their mechanisms. Photothermally enabled nanomaterials are classified into three groups, including metal-, carbon-, and polymer-based nanomaterials. Based on substantial accomplishments with photothermally enabled nanomaterials, we have inferred current trends and their prospective clinical applications.

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“…They thus obtained Gold nanorod-LDH-PEG, which is photothermally effective for dual-imaging mode PA- and CT-guided antibacterial and antitumor therapy . The surfactant CTAB can also be replaced with more biocompatible and less toxic coating agents such as PEG, polyaniline (PANI), and polyethylenimine (PEI) in the synthesis of Au nanoparticles. − Furthermore, Au nanoparticles have emerged as a worthy platform to deactivate bacteria by modulating neuroimmune communication. Zhao and co-workers exploited the high expression of transient receptor potential cation channel subfamily V member 1 (TRPV1) and immune escape-related CD47/PD-L1 surface antigens on the glioma cell membrane for the fabrication of gold–silver nanocages.…”

Section: Photothermal Therapymentioning

confidence: 99%

Near-Infrared Light Brightens Bacterial Disinfection: Recent Progress and Perspectives

Han

Lau

Cong

et al. 2020

ACS Appl. Bio Mater.

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Bacterial infection is a universal threat to public health, which not only causes many serious diseases but also exacerbates the condition of the patients of cancer, pandemic diseases, e.g., COVID-19, and so on. Antibiotic therapy has been used to be an effective way for common bacterial disinfection. However, due to the misuse and abuse of antibiotics, more and more antibiotic-resistant bacteria have emerged as fatal threats to human beings. At present, more than 700,000 patients die every year with bacterial infections because of the lack of effective treatment. It is frustrating that the pace of development of antibiotics lags far behind that of bacterial resistance, with an estimation of 10 million deaths per year from bacterial infections after 2050. Facing such a rigorous challenge, approaches for bacterial disinfection are urgently demanded. The recently developed near-infrared (NIR) light-irradiation-based bacterial disinfection is highly promising to shatter bacterial resistance by employing NIR lightresponsive materials as mediums to generate antibacterial factors such as heat, reactive oxygen species (ROS), and so on. This treatment approach is proved to be a potent candidate to accurately realize spatiotemporal control, while effectively eradicating multidrug-resistant bacteria and inhibiting antibiotic resistance. Herein, we summarize the latest progress of NIR light-based bacterial disinfection. Ultimately, current challenges and perspectives in this field are discussed.

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Dopamine-assisted one-pot synthesis of gold nanoworms and their application as photothermal agents

Cited by 26 publications

References 49 publications

Synthesis of Fe3O4/PDA Nanocomposites for Osteosarcoma Magnetic Resonance Imaging and Photothermal Therapy

Synthesis of Fe3O4/PDA Nanocomposites for Osteosarcoma Magnetic Resonance Imaging and Photothermal Therapy

Nanomaterials for the Photothermal Killing of Bacteria

Near-Infrared Light Brightens Bacterial Disinfection: Recent Progress and Perspectives

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