Synthesis of gold nano-mushrooms <i>via</i> solvent-controlled galvanic replacement to enhance phototherapeutic efficiency

Kang, Seoung-Hun; Kwon, Namgook; Kang, Kyunglee; Ahn, Hojung; Kwon, Sunbum; Min, Dal‐Hee; Jang, Hongje

doi:10.1039/d1nr06634j

Cited by 6 publications

(6 citation statements)

References 34 publications

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“…Compared to spherical Au NPs, in the case of anisotropic nanostructures, including nanorods, nanoplates, nanostars, and nanocages, LSPR optical properties are more meaningfully utilized by shifting in hypsochromic or bathochromic manner for relevant applications 7,8 . Au nanomaterial optical properties, which can be fine‐tuned from the visible (Vis) to the near‐infrared (NIR) region, are essential in all areas involving electromagnetic fields, including biomedical, environmental, and energetic 9–11 . Nevertheless, a limitation resides in the use of environmentally and biologically toxic surfactants to control Au NP specific structures 12,13 …”

Section: Methodsmentioning

confidence: 99%

“…7,8 Au nanomaterial optical properties, which can be fine-tuned from the visible (Vis) to the near-infrared (NIR) region, are essential in all areas involving electromagnetic fields, including biomedical, environmental, and energetic. [9][10][11] Nevertheless, a limitation resides in the use of environmentally and biologically toxic surfactants to control Au NP specific structures. 12,13 Controlling the composition and structure of multielement multi-layer systems, including core-shell structures, is crucial.…”

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confidence: 99%

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Synthesis of binary metal–metal oxide core‐shell nanoparticles via surfactant‐free intercation redox reactions

Yim

Cho

Park

et al. 2022

Bulletin Korean Chem Soc

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Surfactant-free one-step redox reactions between two types of metal cations enable the synthesis of core-shell nanoparticles without sophisticated control. The reduced noble metal cations form a solid core, and the transition metal cations dissolved upon oxidation induce the subsequent formation of a metal oxide shell. Various nanostructures are obtained from the combination of reduction-preferring Au 3+ , Pd 2+ , Pt 2+ , Rh 3+ , and Ir 3+ cations, and oxidationpreferring Ti 3+ , Mo 3+ , V 2+ , and V 3+ cations. Among the synthesized core-shell nanoparticles, Au-M (M = Ti, Mo, and V) is selected for the photodegradation tests at 365 and 808 nm.

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Section: Methodsmentioning

confidence: 99%

mentioning

confidence: 99%

Synthesis of binary metal–metal oxide core‐shell nanoparticles via surfactant‐free intercation redox reactions

Yim

Cho

Park

et al. 2022

Bulletin Korean Chem Soc

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“…Au : Au nanoparticles consist of small Au particles forming nanoparticles in the shape of nanospheres, nanorods (NRs), nanocones, and nanomushrooms. 168 , 169 , 170 , 171 Au nanoparticles have a large specific surface area and optical properties that allow drugs or bioactive agents to aggregate on the surface, and are widely used in cancer therapy. 172 , 173 Due to the large specific surface area for drug delivery, multifunctional modification strategies based on Au nanoparticles can be chemically or physically conjugated.…”

Section: Backbones and Structures Of Multifunctional Nanoparticlesmentioning

confidence: 99%

Multifunctional nanoparticle for cancer therapy

Wang

Zhang

Duan

et al. 2023

MedComm

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Cancer is a complex disease associated with a combination of abnormal physiological process and exhibiting dysfunctions in multiple systems. To provide effective treatment and diagnosis for cancer, current treatment strategies simultaneously focus on various tumor targets. Based on the rapid development of nanotechnology, nanocarriers have been shown to exhibit excellent potential for cancer therapy. Compared with nanoparticles with single functions, multifunctional nanoparticles are believed to be more aggressive and potent in the context of tumor targeting. However, the development of multifunctional nanoparticles is not simply an upgraded version of the original function, but involves a sophisticated system with a proper backbone, optimized modification sites, simple preparation method, and efficient function integration. Despite this, many well‐designed multifunctional nanoparticles with promising therapeutic potential have emerged recently. Here, to give a detailed understanding and analyzation of the currently developed multifunctional nanoparticles, their platform structures with organic or inorganic backbones were systemically generalized. We emphasized on the functionalization and modification strategies, which provide additional functions to the nanoparticle. We also discussed the application combination strategies that were involved in the development of nanoformulations with functional crosstalk. This review thus provides an overview of the construction strategies and application advances of multifunctional nanoparticles.

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“…Furthermore, the I À ions from the added KI salts bound more strongly to Au 3+ than Cl À , forming a more stable complex AuI 4 À (0.56 V vs. SHE), which has a lower reduction potential than AuCl 4 À (0.99 V vs. SHE). Indeed, some capping ligands such as polyvinylpyrrolidone (PVP), 28,29 carbon monoxide (CO) 30 as well as halide ions 26,31 would also serve the same purpose as stabilizing surface, influencing the surface structure of NPs.…”

Section: Factors Affecting Thermodynamic Parametersmentioning

confidence: 99%

Galvanic replacement reaction to prepare catalytic materials

Hong

Venkateshalu

Jeong

et al. 2022

Bulletin Korean Chem Soc

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Galvanic replacement reaction (GRR) has gained considerable interest as a facile and versatile synthetic method for modulating compositions, morphologies, and corresponding physicochemical properties of metallic nanoparticles. Thus far, extensive knowledge of GRR on monometallic templates has been accumulated, backed with ample experimental data and computational modeling and validation. The GRR templates have recently been extended to other materials such as alloys, oxides, sulfides, and liquid metals. These new materials have demonstrated potential applications in electrochemical energy conversion systems, which have been relatively unexplored for GRR-originated materials. In this review, the recent findings in GRR on these new template materials are introduced, pointing to the incredible versatility of the GRR methodology in diversifying the catalytic materials classes. We further discuss the remaining critical issues and future research directions of GRRs to fully exploit the potential of GRR in spearheading future advances in electrocatalytic energy conversion and other important applications.

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Synthesis of gold nano-mushrooms via solvent-controlled galvanic replacement to enhance phototherapeutic efficiency

Abstract: In galvanic replacement, it was found that the solvent polarity had a significant effect on the formed nanostructure. Hollow-tailed Au nano-mushrooms were synthesized under co-solvent conditions and used in effective cancer phototherapy.

Cited by 6 publications

References 34 publications

Synthesis of binary metal–metal oxide core‐shell nanoparticles via surfactant‐free intercation redox reactions

Synthesis of binary metal–metal oxide core‐shell nanoparticles via surfactant‐free intercation redox reactions

Multifunctional nanoparticle for cancer therapy

Galvanic replacement reaction to prepare catalytic materials

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