1
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Wu Q, Yin X, Cheng Y, Wang C, Ma J, Zhang Q, Liu H, Youssef A, Wang J, Zhang D. Layer-By-Layer Designed Spark-Type AuCuPt Alloy with Robust Broadband Absorption to Enhance Sensitivity in Flexible Detection of Estriol by a Lateral Flow Immunoassay. Anal Chem 2024; 96:10714-10723. [PMID: 38913030 DOI: 10.1021/acs.analchem.4c01634] [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: 06/25/2024]
Abstract
Excessive intake of estrogen poses significant health risks to the human body; hence, there is a necessity to develop rapid detection methods to monitor its levels of addition. Gold nanoparticles (AuNPs), commonly utilized as colorimetric signal labels, find extensive application in lateral flow immunoassay (LFIA). However, the detection sensitivity of traditional AuNPs-LFIA is typically constrained by low molar extinction coefficients and reliance on a single signal. Herein, in this work, unique spark-type AuCuPt nanoflowers modified with tannic acid (AuCuPt@TA) were precisely designed by reasonable layer-by-layer element composition and green modification. The obtained AuCuPt displays robust broadband absorption spanning the visible to near-infrared spectrum, showcasing a notable molar extinction coefficient of 2.38 × 1012 M-1 cm-1 and a photothermal conversion efficiency of 48.5%. Based on this, selecting estriol (E3) as a model analyte, colorimetric/photothermal dual-signal LFIA (CLFIA and PLFIA) was developed. Limits of detection (LOD) of the CLFIA and PLFIA were achieved at 0.033 ng mL-1 and 0.021 ng mL-1, respectively, which represent a 9.3- and 14.6-fold improvement compared to the visual LOD of AuNPs-LFIA. Moreover, the application feasibility of the immunoassay was further evaluated in the milk and pork with satisfactory recoveries ranging from 86.21% to 117.91%. Thus, this work has enhanced the performance of LFIA for E3 detection and exhibited enormous potential for other sensing platform construction.
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Affiliation(s)
- Qiaoying Wu
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Xuechi Yin
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yuanyuan Cheng
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Chaoying Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Jiaqi Ma
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Qingzhe Zhang
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Huihui Liu
- Shandong Key Laboratory of Marine Ecological Restoration, Shandong Marine Resource and Environment Research Institute, No. 216 Changjiang Road, Economic and Technological Development Zone, Shandong, Yantai 264006, China
| | - Ahmed Youssef
- Environmental Engineering Program, University of Science and Technology, Zewail City, Giza 12578, Egypt
- Chemistry Department, Faculty of Science, Cairo University, Giza 12613, Egypt
| | - Jianlong Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Daohong Zhang
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
- College of Food Engineering, Ludong University, Shandong, Yantai 264025, China
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2
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Song Q, Liu B. Uniform colloidal synthesis of highly branched chiral gold nanoparticles. Chem Commun (Camb) 2024; 60:5602-5605. [PMID: 38712787 DOI: 10.1039/d4cc00869c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/08/2024]
Abstract
We present a uniform colloidal synthesis of highly branched gold nanoparticles (GNPs) including nanospheres, nanoplatelets and nanorods by cysteine-assisted seeded growth. The highly branched GNPs show blackbody-like absorption and chirality simultaneously, holding great potential for plasmonic or photothermal applications.
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Affiliation(s)
- Qing Song
- State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.
- University of Chinese Academy of Sciences, Beijing, 100149, China
| | - Bing Liu
- State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.
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3
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Su YY, Jiang XY, Zheng LJ, Yang YW, Yan SY, Tian Y, Tian W, Liu WF, Teng ZG, Yao H, Wang SJ, Zhang LJ. Hybrid Au-star@Prussian blue for high-performance towards bimodal imaging and photothermal treatment. J Colloid Interface Sci 2023; 634:601-609. [PMID: 36549208 DOI: 10.1016/j.jcis.2022.12.043] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 11/18/2022] [Accepted: 12/10/2022] [Indexed: 12/15/2022]
Abstract
In recent years, branched or star-shaped Au nanostructures composed of core and protruding arms have attracted much attention due to their unique optical properties and morphology. As the clinically adapted nanoagent, prussian blue (PB) has recently gained widespread attention in cancer theranostics with potential applications in magnetic resonance (MR) imaging. In this article, we propose a hybrid star gold nanostructure(Au-star@PB)as a novel theranostic agent for T1-weighted magnetic resonance imaging (MRI)/ photoacoustic imaging(PAI) and photothermal therapy (PTT) of tumors. Importantly, the Au-star@PB nanoparticles function as effective MRI/PA contrast agents in vivo by increasing T1-weighted MR/PAI signal intensity and as effective PTT agents in vivo by decreasing the tumor volume in MCF-7 tumor bearing BALB / c mouse model as well as in vitro by lessening tumor cells growth rate. Interestingly, we found the main photothermal effect of Au-star@PB is derived from Au-star, but not PB. In summary, the hybrid structure of Au-star@PB NPs with good biological safety, significant photostability, dual imaging capability, and high therapeutic efficiency, might offer a novel avenue for the future diagnosis and treatment of cancer.
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Affiliation(s)
- Yun Yan Su
- Department of Radiology, The First Affiliated Hospital to Soochow University, Suzhou 215006, PR China; Department of Medical Imaging, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, PR China
| | - Xin Yu Jiang
- Department of Radiology, The First Affiliated Hospital to Soochow University, Suzhou 215006, PR China
| | - Li Juan Zheng
- Department of Medical Imaging, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, PR China
| | - Yi Wen Yang
- Department of Radiology, The First Affiliated Hospital to Soochow University, Suzhou 215006, PR China
| | - Suo Yu Yan
- Department of Radiology, The First Affiliated Hospital to Soochow University, Suzhou 215006, PR China
| | - Ying Tian
- Department of Medical Imaging, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, PR China
| | - Wei Tian
- Department of Medical Imaging, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, PR China
| | - Wen Fei Liu
- Department of Medical Imaging, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, PR China
| | - Zhao Gang Teng
- Department of Medical Imaging, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, PR China
| | - Hui Yao
- Department of Radiology, The First Affiliated Hospital to Soochow University, Suzhou 215006, PR China; Department of General Surgery, The First Affiliated Hospital to Soochow University, Suzhou 215006, PR China.
| | - Shou Ju Wang
- Department of Medical Imaging, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, PR China; Department of Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210000, PR China.
| | - Long Jiang Zhang
- Department of Medical Imaging, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, PR China.
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4
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Zhong S, Hang L, Wen L, Zhang T, Cao A, Zeng P, Zhang H, Liu D, Cai W, Li Y. Rapid controllable synthesis of branched Au superparticles: formation mechanism of toggling the growth mode and their applications in optical broadband absorption. NANOSCALE ADVANCES 2023; 5:1776-1783. [PMID: 36926572 PMCID: PMC10012854 DOI: 10.1039/d3na00008g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Accepted: 02/14/2023] [Indexed: 06/18/2023]
Abstract
We develop a tunable, ultrafast (5 seconds), and mass-producible seed-mediated synthesis method to prepare branched Au superparticles consisting of multiple small Au island-like nanoparticles by a wet chemical route. We reveal and confirm the toggling formation mechanism of Au superparticles between the Frank-van der Merwe (FM) growth mode and the Volmer-Weber (VW) growth mode. The key factor of this special structure is the frequent toggling between the FM (layer by layer) growth mode and the VW (island) growth mode induced by 3-aminophenol, which is continuously absorbed on the surface of newborn Au nanoparticles, leading to a relatively high surface energy during the overall synthesis process, thus achieving an island on island growth. Such Au superparticles demonstrate broadband absorption from visible to near-infrared regions due to their multiple plasmonic coupling and hence they have important applications in sensors, photothermal conversion and therapy, etc. We also exhibit the excellent properties of Au superparticles with different morphologies, such as NIR-II photothermal conversion and therapy and SERS detection. The photothermal conversion efficiency under 1064 nm laser irradiation was calculated to be as high as 62.6% and they exhibit robust photothermal therapy efficiency. This work provides insight into the growth mechanism of plasmonic superparticles and develops a broadband absorption material for highly efficient optical applications.
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Affiliation(s)
- Shichuan Zhong
- Key Lab of Materials Physics, Anhui Key Lab of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences Hefei 230031 Anhui P. R. China
| | - Lifeng Hang
- The Department of Medical Imaging, Guangdong Second Provincial General Hospital Guangzhou 518037 P. R. China
| | - Lulu Wen
- Key Lab of Materials Physics, Anhui Key Lab of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences Hefei 230031 Anhui P. R. China
| | - Tao Zhang
- Key Lab of Materials Physics, Anhui Key Lab of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences Hefei 230031 Anhui P. R. China
- School of Physical and Mathematical Sciences, Nanyang Technological University 21 Nanyang Link Singapore 637371 Singapore
| | - An Cao
- Key Lab of Materials Physics, Anhui Key Lab of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences Hefei 230031 Anhui P. R. China
| | - Pan Zeng
- Key Lab of Materials Physics, Anhui Key Lab of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences Hefei 230031 Anhui P. R. China
| | - Hanlin Zhang
- Key Lab of Materials Physics, Anhui Key Lab of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences Hefei 230031 Anhui P. R. China
| | - Dilong Liu
- Key Lab of Materials Physics, Anhui Key Lab of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences Hefei 230031 Anhui P. R. China
| | - Weiping Cai
- Key Lab of Materials Physics, Anhui Key Lab of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences Hefei 230031 Anhui P. R. China
| | - Yue Li
- Key Lab of Materials Physics, Anhui Key Lab of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences Hefei 230031 Anhui P. R. China
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5
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Zhou T, Huang J, Zhao W, Guo R, Cui S, Li Y, Zhang X, Liu Y, Zhang Q. Multifunctional Plasmon-Tunable Au Nanostars and Their Applications in Highly Efficient Photothermal Inactivation and Ultra-Sensitive SERS Detection. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:4232. [PMID: 36500854 PMCID: PMC9738658 DOI: 10.3390/nano12234232] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 11/22/2022] [Accepted: 11/24/2022] [Indexed: 06/17/2023]
Abstract
The development and application in different fields of multifunctional plasmonic nanoparticles (NPs) have always been research hotspots. Herein, multi-tip Au nanostars (NSs) with an anisotropic structure were fabricated for the photothermal therapy (PTT) of bacteria and surface-enhanced Raman scattering (SERS) detection of pollutants. The size and localized surface plasmon resonance (LSPR) characteristics of Au NSs were adjusted by varying Au seed additions. In addition, photothermal conversion performance of Au NSs with various Au seed additions was evaluated. Photothermal conversion efficiency of Au NSs with optimal Au seed additions (50 μL) was as high as 28.75% under 808 nm laser irradiation, and the heat generated was sufficient to kill Staphylococcus aureus (S. aureus). Importantly, Au NSs also exhibited excellent SERS activity for the 4-mercaptobenzoic acid (4-MBA) probe molecule, and the local electromagnetic field distribution of Au NSs was explored through finite-difference time-domain (FDTD) simulation. As verified by experiments, Au NSs' SERS substrate could achieve a highly sensitive detection of a low concentration of potentially toxic pollutants such as methylene blue (MB) and bilirubin (BR). This work demonstrates a promising multifunctional nanoplatform with great potential for efficient photothermal inactivation and ultra-sensitive SERS detection.
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Affiliation(s)
- Tianxiang Zhou
- Key Laboratory of Functional Materials Physics and Chemistry (Ministry of Education), College of Physics, Jilin Normal University, Changchun 130103, China
| | - Jie Huang
- Key Laboratory of Functional Materials Physics and Chemistry (Ministry of Education), College of Physics, Jilin Normal University, Changchun 130103, China
| | - Wenshi Zhao
- Key Laboratory of Functional Materials Physics and Chemistry (Ministry of Education), College of Physics, Jilin Normal University, Changchun 130103, China
- Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Rui Guo
- Key Laboratory of Functional Materials Physics and Chemistry (Ministry of Education), College of Physics, Jilin Normal University, Changchun 130103, China
| | - Sicheng Cui
- Key Laboratory of Functional Materials Physics and Chemistry (Ministry of Education), College of Physics, Jilin Normal University, Changchun 130103, China
| | - Yuqing Li
- Key Laboratory of Functional Materials Physics and Chemistry (Ministry of Education), College of Physics, Jilin Normal University, Changchun 130103, China
| | - Xiaolong Zhang
- Key Laboratory of Functional Materials Physics and Chemistry (Ministry of Education), College of Physics, Jilin Normal University, Changchun 130103, China
| | - Yang Liu
- Key Laboratory of Functional Materials Physics and Chemistry (Ministry of Education), College of Physics, Jilin Normal University, Changchun 130103, China
| | - Qi Zhang
- Key Laboratory of Functional Materials Physics and Chemistry (Ministry of Education), College of Physics, Jilin Normal University, Changchun 130103, China
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6
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Chen W, Li C, Yu Z, Song Y, Zhang X, Ni D, Zhang D, Liang P. Optimum synthesis of cactus-inspired SERS substrate with high roughness for paraquat detection. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 268:120703. [PMID: 34896679 DOI: 10.1016/j.saa.2021.120703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 11/24/2021] [Accepted: 11/30/2021] [Indexed: 06/14/2023]
Abstract
Paraquat is a highly effective herbicide and widely used in agricultural production. However, paraquat residue is harmful for human health and can cause irreversible hazard. Thus, it is crucial for monitoring of paraquat residues. In this paper, an efficient SERS platform based on cactus-inspired nanoparticles is proposed for sensitive detection of paraquat. The cactus-liked nanoparticles obtained from one-pot stepwise reduction method possess multiple spiny structures and can produce abundant hot spots, resulting in remarkable SERS performance. SEM, TEM, UV-vis and Raman tests were conducted to characterize and optimize the morphology of cactus-liked nanoparticles under different preparation conditions. The synthesis mechanism and corresponding parameters influence mechanism of cactus-liked nanoparticles were explored in detail. Optimized substrate exhibited a high sensitivity with the detectable concentration of crystal violet (CV) down to 10-9 M and an excellent reproducibility proved by SERS mapping. Furthermore, it behaved good linear relationship with a correlation coefficient (R2) of 96.89% between Raman intensities and concentrations of paraquat, which indicates the SERS substrate prepared with cactus-liked nanoparticles could offer a great potential for identification of paraquat.
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Affiliation(s)
- Wenwen Chen
- College of Horticulture & Forestry Sciences, Huazhong Agricultural University, Key Laboratory of Horticultural Plant Biology, Ministry of Education, 430070 Wuhan, China
| | - Chen Li
- Jiangxi Sericulture and Tea Research Institute, 330203 Nanchang, China
| | - Zhi Yu
- College of Horticulture & Forestry Sciences, Huazhong Agricultural University, Key Laboratory of Horticultural Plant Biology, Ministry of Education, 430070 Wuhan, China
| | - Ying Song
- College of Horticulture & Forestry Sciences, Huazhong Agricultural University, Key Laboratory of Horticultural Plant Biology, Ministry of Education, 430070 Wuhan, China
| | - Xiubing Zhang
- College of Optical and Electronic Technology, China Jiliang University, 310018 Hangzhou, China
| | - Dejiang Ni
- College of Horticulture & Forestry Sciences, Huazhong Agricultural University, Key Laboratory of Horticultural Plant Biology, Ministry of Education, 430070 Wuhan, China
| | - De Zhang
- College of Horticulture & Forestry Sciences, Huazhong Agricultural University, Key Laboratory of Horticultural Plant Biology, Ministry of Education, 430070 Wuhan, China.
| | - Pei Liang
- College of Optical and Electronic Technology, China Jiliang University, 310018 Hangzhou, China.
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7
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Kang S, Kwon N, Kang K, Ahn H, Kwon S, Min DH, Jang H. Synthesis of gold nano-mushrooms via solvent-controlled galvanic replacement to enhance phototherapeutic efficiency. NANOSCALE 2022; 14:1409-1420. [PMID: 35018402 DOI: 10.1039/d1nr06634j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
In advanced galvanic replacement, variable factors such as the combination of two elements where actual redox reaction and post-synthetic structural transformation take place. Research on manufacturing distinctive nanostructures has mainly focused on the shape of the sacrificial nanotemplate, the presence or absence of additives, and the reaction temperature. Here, we have attempted to confirm the dependency on the solvent, which was considered to simply serve as a medium for a homogeneous chemical reaction to proceed by aiding the dispersion of the nanotemplate and reactants. Thus, we obtained mushroom-like Au nanoplates (mAuNPs) by comprehensive galvanic replacement reaction between solvents, additives, and adsorbents. The mAuNPs with a porous Au nanoplate head and a hollow nanotube tail structure were formed via an optimization process in a 50 v/v% solvent comprising water and ethylene glycol. As a result of confirming the galvanic replacement in co-solvent conditions, in which various types of water miscible solvents were introduced, it was revealed that the most critical factors for regulating the surface polymeric environment of the nanoplate were the relative polarity index of the co-solvent and the hydrogen bonding type. These depend on the molecular structure of the solvent. The manufactured mAuNPs exhibited excellent absorbance in the near-infrared region, and efficient photothermal (PT) conversion-mediated heat dissipation under local laser irradiation. These results confirm the viability of the gene-thermo dual-modal combinatorial cancer therapy based on the surface loading of oligonucleotides and peptides, and the PT therapeutic approach in vitro and in vivo.
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Affiliation(s)
- Seounghun Kang
- Republic of Korea Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea.
| | - Namgook Kwon
- Department of Chemistry, Kwangwoon University, 20, Gwangwoon-ro, Nowon-gu, Seoul 01897, Republic of Korea.
| | - Kyunglee Kang
- Department of Chemistry, Kwangwoon University, 20, Gwangwoon-ro, Nowon-gu, Seoul 01897, Republic of Korea.
| | - Hojung Ahn
- Department of Chemistry, Kwangwoon University, 20, Gwangwoon-ro, Nowon-gu, Seoul 01897, Republic of Korea.
| | - Sunbum Kwon
- Department of Chemistry, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Dal-Hee Min
- Republic of Korea Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea.
- Institute of Biotherapeutics Convergence Technology, Lemonex Inc., Seoul 08826, Republic of Korea
| | - Hongje Jang
- Department of Chemistry, Kwangwoon University, 20, Gwangwoon-ro, Nowon-gu, Seoul 01897, Republic of Korea.
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8
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Siegel AL, Baker GA. Bespoke nanostars: synthetic strategies, tactics, and uses of tailored branched gold nanoparticles. NANOSCALE ADVANCES 2021; 3:3980-4004. [PMID: 36132836 PMCID: PMC9417963 DOI: 10.1039/d0na01057j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Accepted: 04/20/2021] [Indexed: 05/05/2023]
Abstract
Interest in branched colloidal gold nanosystems has gained increased traction due to the structures' outstanding optical and plasmonic properties, resulting in utilization in techniques such as surface-enhanced spectroscopy and bioimaging, as well as plasmon photocatalysis and photothermal therapy. The unique morphologies of nanostars, multipods, urchins, and other highly branched nanomaterials exhibit selective optical and crystallographic features accessible by alterations in the respective wet-chemical syntheses, opening a vast array of useful applications. Examination of discriminatory reaction conditions, such as seeded growth (e.g., single-crystalline vs. multiply twinned seeds), underpotential deposition of Ag(i), galvanic replacement, and the dual use of competing reducing and capping agents, is shown to reveal conditions necessary for the genesis of assorted branched nanoscale gold frameworks. By observing diverse approaches, including template-directed, microwave-mediated, and aggregation-based methods, among others, a schema of synthetic pathways can be constructed to provide a guiding roadmap for obtaining the full range of desired branched gold nanocrystals. This review presents a comprehensive summary of such advances and these nuances of the underlying procedures, as well as offering mechanistic insights into the directed nanoscale growth. We conclude the review by discussing various applications for these fascinating nanomaterials, particularly surface-enhanced Raman spectroscopy, photothermal and photodynamic therapy, catalysis, drug delivery, and biosensing.
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Affiliation(s)
- Asher L Siegel
- Department of Chemistry, University of Missouri-Columbia Columbia MO 65211 USA
| | - Gary A Baker
- Department of Chemistry, University of Missouri-Columbia Columbia MO 65211 USA
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Park JM, Choi HE, Kudaibergen D, Kim JH, Kim KS. Recent Advances in Hollow Gold Nanostructures for Biomedical Applications. Front Chem 2021; 9:699284. [PMID: 34169061 PMCID: PMC8217768 DOI: 10.3389/fchem.2021.699284] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Accepted: 05/24/2021] [Indexed: 11/13/2022] Open
Abstract
The localized surface plasmon resonance of metallic nanoparticles has attracted much attention owing to its unique characteristics, including the enhancement of signals in sensors and photothermal effects. In particular, hollow gold nanostructures are highly promising for practical applications, with significant advantages being found in their material properties and structures: 1) the interaction between the outer surface plasmon mode and inner cavity mode leads to a greater resonance, allowing it to absorb near-infrared light, which can readily penetrate tissue; 2) it has anti-corrosiveness and good biocompatibility, which makes it suitable for biomedical applications; 3) it shows a reduced net density and large surface area, allowing the possibility of nanocarriers for drug delivery. In this review, we present information on the classification, characteristics, and synthetic methods of hollow gold nanostructures; discuss the recent advances in hollow gold nanostructures in biomedical applications, including biosensing, bioimaging, photothermal therapy, and drug delivery; and report on the existing challenges and prospects for hollow gold nanostructures.
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Affiliation(s)
- Jeong-Min Park
- Department of Chemical and Environmental Engineering, Pusan National University, Busan, South Korea
| | - Hye Eun Choi
- School of Chemical Engineering, Pusan National University, Busan, South Korea
| | - Dauletkerey Kudaibergen
- Department of Chemical and Environmental Engineering, Pusan National University, Busan, South Korea
| | - Jae-Hyuk Kim
- Department of Chemical and Environmental Engineering, Pusan National University, Busan, South Korea
| | - Ki Su Kim
- School of Chemical Engineering, Pusan National University, Busan, South Korea
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