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Li Y, Fan L, Xu X, Sun Y, Wang W, Li B, Veroneau SS, Ji P. Hierarchical organic microspheres from diverse molecular building blocks. Nat Commun 2024; 15:5041. [PMID: 38871694 DOI: 10.1038/s41467-024-49379-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Accepted: 06/04/2024] [Indexed: 06/15/2024] Open
Abstract
Microspherical structures find broad application in chemistry and materials science, including in separations and purifications, energy storage and conversion, organic and biocatalysis, and as artificial and bioactive scaffolds. Despite this utility, the systematic diversification of their morphology and function remains hindered by the limited range of their molecular building blocks. Drawing upon the design principles of reticular synthesis, where diverse organic molecules generate varied porous frameworks, we show herein how analogous microspherical structures can be generated under mild conditions. The assembly of simple organic molecules into microspherical structures with advanced morphologies represents a grand challenge. Beginning with a partially condensed Schiff base which self-assembles into a hierarchical organic microsphere, we systematically synthesized sixteen microspheres from diverse molecular building blocks. We subsequently explicate the mechanism of hierarchical assembly through which these hierarchical organic microspheres are produced, isolating the initial monomer, intermediate substructures, and eventual microspheres. Furthermore, the open cavities present on the surfaces of these constructs provided distinctive adsorptive properties, which we harnessed for the immobilization of enzymes and bacteriophages. Holistically, these hierarchical organic microspheres provide an approach for designing multi-functional superstructures with advanced morphologies derived from simple organic molecules, revealing an extended length scale for reticular synthesis.
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Affiliation(s)
- Yintao Li
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
| | - Longlong Fan
- Institute of High Energy Physics, the Chinese Academy of Sciences, Beijing, 100049, China
| | - Xinyan Xu
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Yang Sun
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
| | - Wei Wang
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
| | - Bin Li
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Samuel S Veroneau
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA, 02138, USA
| | - Pengfei Ji
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China.
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2
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Zhong S, Guan Z, Yang F, Jiang Y, Zhao L, Wang W, Liu D, Cai W, Li Y. An Ultra-broadband Metallic Plasmonic Antenna for Ultrasensitive Molecular Fingerprint Identification. NANO LETTERS 2024; 24:6805-6812. [PMID: 38787360 DOI: 10.1021/acs.nanolett.4c01562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2024]
Abstract
Near-field enhanced mid-infrared light-matter interactions via metallic plasmonic antennae (PA) have attracted much attention but are inevitably limited by the detuning between their narrow band and the broad applied spectral range. Here, we develop a new low-temperature incubation synthetic method to acquire uniform Ag microparticles (MPs) with numerous hotspots. Their plasmonic band is remarkably extended by the plasmonic coupling of numerous hotspots and covers the entire mid-infrared range (400-4000 cm-1). Hence, the almost complete molecular fingerprint of 4-mercaptobenzonitrile was successfully probed for the first time via resonant surface-enhanced infrared absorption (rSEIRA), and the rSEIRA spectra of different essential amino acids were further detected and exhibit a high spectral identification degree assisted by machine learning. This work changes the inertia perception of "narrow band and large size but small hotspot area" of mid-infrared metallic PA and paves the way for the ultrasensitive mid-infrared optical sensing.
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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, People's Republic of China
| | - Zeyu Guan
- University of Science and Technology of China, Hefei 230026, Anhui, People's Republic of China
| | - Fan Yang
- Tiangong University, Tianjin 300387, People's Republic of China
| | - Yong Jiang
- Tiangong University, Tianjin 300387, People's Republic of China
| | - Lixia Zhao
- Tiangong University, Tianjin 300387, People's Republic of China
| | - Wenhong Wang
- Tiangong University, Tianjin 300387, People's Republic of 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, People's Republic of 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, People's Republic of 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, People's Republic of China
- Tiangong University, Tianjin 300387, People's Republic of China
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3
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Lv M, Pu H, Sun DW. A durian-shaped multilayer core-shell SERS substrate for flow magnetic detection of pesticide residues on foods. Food Chem 2024; 433:137389. [PMID: 37690135 DOI: 10.1016/j.foodchem.2023.137389] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 08/18/2023] [Accepted: 08/31/2023] [Indexed: 09/12/2023]
Abstract
A new type of durian-shaped Fe3O4@Au@Ag@Au (DFAAA) multilayer core-shell composite was prepared as an efficient surface-enhanced Raman scattering (SERS) substrate. The optimization process and SERS enhancement mechanism of the substrate were further explained with finite-difference time-domain simulation. The dense and uniform spiny array on the DFAAA surface had abundant "hot spots", greatly improving sensitivity, uniformity and reproducibility, with a Raman enhancement factor of 3.01 × 107 and storage-life of 30 d. A "flow magnetic detection method" was proposed to realize rapid and flexible detection of pesticide residues on the surface of different foods including fish and apple. The limit of detection of malachite green and thiram on the fish and apple surfaces were 0.13 and 0.18 ng/cm2, respectively. With its high SERS performance and good magnetic, the DFAAA possessed great application prospects as a facile SERS substrate for rapid and non-destructive detection of trace pesticide residues on foods.
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Affiliation(s)
- Mingchun Lv
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China; Academy of Contemporary Food Engineering, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou 510006, China; Engineering and Technological Research Centre of Guangdong Province on Intelligent Sensing and Process Control of Cold Chain Foods, & Guangdong Province Engineering Laboratory for Intelligent Cold Chain Logistics Equipment for Agricultural Products, Guangzhou Higher Education Mega Centre, Guangzhou 510006, China
| | - Hongbin Pu
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China; Academy of Contemporary Food Engineering, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou 510006, China; Engineering and Technological Research Centre of Guangdong Province on Intelligent Sensing and Process Control of Cold Chain Foods, & Guangdong Province Engineering Laboratory for Intelligent Cold Chain Logistics Equipment for Agricultural Products, Guangzhou Higher Education Mega Centre, Guangzhou 510006, China
| | - Da-Wen Sun
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China; Academy of Contemporary Food Engineering, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou 510006, China; Engineering and Technological Research Centre of Guangdong Province on Intelligent Sensing and Process Control of Cold Chain Foods, & Guangdong Province Engineering Laboratory for Intelligent Cold Chain Logistics Equipment for Agricultural Products, Guangzhou Higher Education Mega Centre, Guangzhou 510006, China; Food Refrigeration and Computerized Food Technology (FRCFT), Agriculture and Food Science Centre, University College Dublin, National University of Ireland, Belfield, Dublin 4, Ireland.
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4
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Takayama Y, Nakasako M. Similarity score for screening phase-retrieved maps in X-ray diffraction imaging - characterization in reciprocal space. JOURNAL OF SYNCHROTRON RADIATION 2024; 31:95-112. [PMID: 38054944 PMCID: PMC10833420 DOI: 10.1107/s1600577523009827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 11/10/2023] [Indexed: 12/07/2023]
Abstract
X-ray diffraction imaging (XDI) is utilized for visualizing the structures of non-crystalline particles in material sciences and biology. In the structural analysis, phase-retrieval (PR) algorithms are applied to the diffraction amplitude data alone to reconstruct the electron density map of a specimen particle projected along the direction of the incident X-rays. However, PR calculations may not lead to good convergence because of a lack of diffraction patterns in small-angle regions and Poisson noise in X-ray detection. Therefore, the PR calculation is still a bottleneck for the efficient application of XDI in the structural analyses of non-crystalline particles. For screening maps from hundreds of trial PR calculations, we have been using a score and measuring the similarity between a pair of retrieved maps. Empirically, probable maps approximating the particle structures gave a score smaller than a threshold value, but the reasons for the effectiveness of the score are still unclear. In this study, the score is characterized in terms of the phase differences between the structure factors of the retrieved maps, the usefulness of the score in screening the maps retrieved from experimental diffraction patterns is demonstrated, and the effective resolution of similarity-score-selected maps is discussed.
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Affiliation(s)
- Yuki Takayama
- Graduate School of Science, University of Hyogo, 3-2-1 Kouto, Kamigori-cho, Ako-gun, Hyogo 678-1297, Japan
- RIKEN SPring-8 Center, 1-1-1 Kouto, Sayo, Sayo-gun, Hyogo 679-5148, Japan
- Synchrotron Radiation Research Center, Hyogo Science and Technology Association, 1-490-2 Kouto, Shingu, Tatsuno, Hyogo 679-5148, Japan
- International Center for Synchrotron Radiation Innovation Smart, Tohoku University, Katahira 2-1-1, Aoba-ku, Sendai 980-8577, Japan
| | - Masayoshi Nakasako
- RIKEN SPring-8 Center, 1-1-1 Kouto, Sayo, Sayo-gun, Hyogo 679-5148, Japan
- Department of Physics, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
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Nobeyama T, Tataka K, Mori M, Murakami T, Yamada Y, Shiraki K. Synthesis of Butterfly-Like Shaped Gold Nanomaterial: For the Regulation of Liquid-Liquid Phase-Separated Biomacromolecule Droplets. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2300362. [PMID: 37596729 DOI: 10.1002/smll.202300362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 07/31/2023] [Indexed: 08/20/2023]
Abstract
Nanotechnology is a critical tool to manipulate the sophisticated behavior of biological structures and has provided new research fields. Liquid-liquid phase-separated (LLPS) droplets gather attention as basic reaction fields in a living cell. Droplets play critical roles in regulating protein behavior, including enzyme compartmentalization, stress response, and disease pathogenesis. The dynamic manipulation of LLPS droplet formation/deformation has become a crucial target in nanobiotechnology. However, the development of nanodevices specifically designed for this purpose remains a challenge. Therefore, this study presents butterfly-shaped gold nanobutterflies (GNBs) as novel nanodevices for manipulating LLPS droplet dynamics. The growth process of the GNBs is analyzed via time-lapse electroscopic imaging, time-lapse spectroscopy, and additives assays. Interestingly, GNBs demonstrate the ability to induce LLPS droplet formation in systems such as adenosine triphosphate/poly-l-lysine and human immunoglobulin G, whereas spherical and rod-shaped gold nanoparticles exhibit no such capability. This indicates that the GNB concave surface interacts with the droplet precursors facilitating the LLPS droplet formation. Near-infrared-laser irradiation applied to GNBs enables on-demand deformation of the droplets through localized heat effects. GNB regulates the enzymatic reaction of lysozymes. The innovative design of GNBs presents a promising strategy for manipulating LLPS dynamics and offers exciting prospects for future research.
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Affiliation(s)
- Tomohiro Nobeyama
- Faculty of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8573, Japan
| | - Koji Tataka
- Graduate School of Engineering, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama, 939-0398, Japan
- Human Life Technology Research, Toyama Industrial Technology Research and Development Center, 35-1 Iwatakeshin, Nanto, Toyama, 939-1503, Japan
| | - Megumi Mori
- Faculty of Agriculture, Kyoto University, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Tatsuya Murakami
- Graduate School of Engineering, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama, 939-0398, Japan
| | - Yoichi Yamada
- Faculty of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8573, Japan
| | - Kentaro Shiraki
- Faculty of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8573, Japan
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6
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Zhang Y, Zhao X, Mao D, Wen J, Gao R, Wang Y. 3D SERS Substrate of Z-Shaped Ag Nanorod Array for Thiabendazole Detection. Molecules 2023; 28:7078. [PMID: 37894557 PMCID: PMC10608866 DOI: 10.3390/molecules28207078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 10/01/2023] [Accepted: 10/06/2023] [Indexed: 10/29/2023] Open
Abstract
Ag nanoparticles sputtered on silicon wafer are used as masks for the fabrication of silicon columns by ion etching, which induces the growth of the inclined Ag nanorod by inclined Ag sputtering. V-shaped and Z-shaped Ag nanorods can be obtained by varying incline angles and deposition times. SERS detection and FDTD simulation are used to compare and investigate the enhanced electromagnetic coupling of incline nanorod arrays with different shapes in three-dimensional space, which indicates that Z-shaped nanorods show good SERS properties. The Z-shaped Ag nanorod array is used as a SERS substrate for the detection of thiabendazole with a concentration down to 10-11 M.
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Affiliation(s)
- Yongjun Zhang
- School of Material and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, China
- Shangyu Institute of Science and Engineering, Hangzhou Dianzi University, Shaoxing 312000, China;
| | - Xiaoyu Zhao
- School of Material and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, China
| | - Deyuan Mao
- School of Material and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, China
| | - Jiahong Wen
- Shangyu Institute of Science and Engineering, Hangzhou Dianzi University, Shaoxing 312000, China;
- The College of Electronics and Information, Hangzhou Dianzi University, Hangzhou 310018, China
| | - Renxian Gao
- Department of Physics, Xiamen University, Xiamen 361005, China;
| | - Yaxin Wang
- School of Material and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, China
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7
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Firoozbakhtian A, Hosseini M, Sheikholeslami MN, Salehnia F, Xu G, Rabbani H, Sobhanie E. Detection of COVID-19: A Smartphone-Based Machine-Learning-Assisted ECL Immunoassay Approach with the Ability of RT-PCR CT Value Prediction. Anal Chem 2022; 94:16361-16368. [DOI: 10.1021/acs.analchem.2c03502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Ali Firoozbakhtian
- Nanobiosensors Lab, Department of Life Science Engineering, Faculty of New Sciences & Technologies, University of Tehran, Tehran1439817435, Iran
| | - Morteza Hosseini
- Nanobiosensors Lab, Department of Life Science Engineering, Faculty of New Sciences & Technologies, University of Tehran, Tehran1439817435, Iran
- National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran1439817435, Iran
| | - Mahsa Naghavi Sheikholeslami
- Center of Excellence in Electrochemistry, School of Chemistry, College of Science, University of Tehran, Tehran1439817435, Iran
| | - Foad Salehnia
- Departament d’Enginyeria Electrònica, Escola Tècnica Superior d’Enginyeria, Universitat Rovira i Virgili, Avinguda dels Països Catalans 26, 43007Tarragona, Spain
| | - Guobao Xu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun130022, China
- University of Science and Technology of China, Hefei, Anhui230026, China
| | - Hodjattallah Rabbani
- Monoclonal Antibody Research Center, Avicenna Research Institute, ACECR, Tehran1439817435, Iran
| | - Ebtesam Sobhanie
- Nanobiosensors Lab, Department of Life Science Engineering, Faculty of New Sciences & Technologies, University of Tehran, Tehran1439817435, Iran
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Ba J, Huang Z, Yang W. 3-Aminopropyltriethoxysilane-directed formation of Au popcorns for colorimetric and SERS dual detection of cysteine. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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9
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Kalčec N, Ljulj A, Božičević L, Vrček V, Marson D, Pricl S, Separovic F, Vinković Vrček I. Transformation of L-DOPA and Dopamine on the Surface of Gold Nanoparticles: An NMR and Computational Study. Inorg Chem 2022; 61:10781-10791. [PMID: 35785790 DOI: 10.1021/acs.inorgchem.2c00996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Gold nanoparticles (AuNPs) have found applications in biomedicine as diagnostic tools, but extensive research efforts have been also directed toward their development as more efficient drug delivery agents. The high specific surface area of AuNPs may provide dense loading of molecules like catechols (L-DOPA and dopamine) on nanosurfaces, enabling functionalization strategies for advancing conventional therapy and diagnostic approaches of neurodegenerative diseases. Despite numerous well-described procedures in the literature for preparation of different AuNPs, possible transformation and structural changes of surface functionalization agents have not been considered thoroughly. As a case in point, the catechols L-DOPA and dopamine were selected because of their susceptibility to oxidation, cyclization, and polymerization. To assess the fate of coating and functionalization agents during the preparation of AuNPs or interaction at the nano-bio interface, a combination of spectroscopy, light scattering, and microscopy techniques was used while structural information and reaction mechanism were obtained by NMR in combination with computational tools. The results revealed that the final form of catechol on the AuNP nanosurface depends on the molar ratio of Au used for AuNP preparation. A large molar excess of L-DOPA or dopamine is needed to prepare AuNPs funtionalized with fully reduced catechols. In the case of molar excess of Au, the oxidation of catechols to dopamine quinone and dopaquinone was promoted, and dopaquinone underwent intramolecular cyclization in which additional oxidation products, leukodopachrome, dopachrome, or its tautomer, were formed because of the larger intrinsic acidity of the more nucleophilic amino group in dopaquinone. MD simulations showed that, of the oxidation products, dopachrome had the highest affinity for binding to the AuNPs surface. The results highlight how a more versatile methodological approach, combining experimental and in silico techniques, allows more reliable characterization of binding events at the surface of AuNPs for possible applications in biomedicine.
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Affiliation(s)
- Nikolina Kalčec
- Institute for Medical Research and Occupational Health, Ksaverska cesta 2, 10000 Zagreb, Croatia
| | - Antonio Ljulj
- Faculty of Pharmacy and Biochemistry, University of Zagreb, Ante Kovačića 1, 10000 Zagreb, Croatia
| | - Lucija Božičević
- Institute for Medical Research and Occupational Health, Ksaverska cesta 2, 10000 Zagreb, Croatia
| | - Valerije Vrček
- Faculty of Pharmacy and Biochemistry, University of Zagreb, Ante Kovačića 1, 10000 Zagreb, Croatia
| | - Domenico Marson
- Molecular Biology and Nanotechnology Laboratory (MolBNL@UniTS), DEA, University of Trieste, Piazzale Europa 1, 34127 Trieste, Italy
| | - Sabrina Pricl
- Molecular Biology and Nanotechnology Laboratory (MolBNL@UniTS), DEA, University of Trieste, Piazzale Europa 1, 34127 Trieste, Italy.,Department of General Biophysics, University of Łódź, ul. Pomorska 141/143, 90-236 Łódź, Poland
| | - Frances Separovic
- School of Chemistry, Bio21 Institute, University of Melbourne, Melbourne, VIC 3010, Australia
| | - Ivana Vinković Vrček
- Institute for Medical Research and Occupational Health, Ksaverska cesta 2, 10000 Zagreb, Croatia
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Drozd M, Duszczyk A, Ivanova P, Pietrzak M. Interactions of proteins with metal-based nanoparticles from a point of view of analytical chemistry - Challenges and opportunities. Adv Colloid Interface Sci 2022; 304:102656. [PMID: 35367856 DOI: 10.1016/j.cis.2022.102656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 03/18/2022] [Accepted: 03/23/2022] [Indexed: 11/01/2022]
Abstract
Interactions of proteins with nanomaterials draw attention of many research groups interested in fundamental phenomena. However, alongside with valuable information regarding physicochemical aspects of such processes and their mechanisms, they more and more often prove to be useful from a point of view of bioanalytics. Deliberate use of processes based on adsorption of proteins on nanoparticles (or vice versa) allows for a development of new analytical methods and improvement of the existing ones. It also leads to obtaining of nanoparticles of desired properties and functionalities, which can be used as elements of analytical tools for various applications. Due to interactions with nanoparticles, proteins can also gain new functionalities or lose their interfering potential, which from perspective of bioanalytics seems to be very inviting and attractive. In the framework of this article we will discuss the bioanalytical potential of interactions of proteins with a chosen group of nanoparticles, and implementation of so driven processes for biosensing. Moreover, we will show both positive and negative (opportunities and challenges) aspects resulting from the presence of proteins in media/samples containing metal-based nanoparticles or their precursors.
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Tatar AS, Farcău C, Vulpoi A, Boca S, Astilean S. Development and evaluation of a gold nanourchin (GNU)-based sandwich architecture for SERS immunosensing in liquid. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 273:121069. [PMID: 35231760 DOI: 10.1016/j.saa.2022.121069] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 02/17/2022] [Accepted: 02/20/2022] [Indexed: 06/14/2023]
Abstract
Nanosensors represent a class of emerging promising nanotools that can be used for the rapid, sensitive and specific detection of relevant molecules such as biomarkers of cancer or other diseases. The sensing platforms that rely on the exceptional physical properties of colloidal gold nanoparticles have gained a special attraction and various architectural designs were proposed with the aim of rapid and real-time detection, identification and monitoring of the capturing events. Moreover, biomarker sensing in liquid samples allows a more facile implementation of the nanosensors by circumventing the need for invasive practices such as biopsies, in favor of non-invasive investigations with potential for use as point-of-care assays. Herein, we propose a sandwich-type surface enhanced Raman scattering (SERS) immuno-nanosensor which is aimed for detecting and quantifying Carcinoembryonic antigen-related cell adhesion molecule 5 (CEA-CAM5), a protein involved in intercellular adhesion and signaling pathways that acts as a tumor marker in several types of cancer. For constructing the proposed system, colloidal gold nano spheres (GNS) and gold nano-urchins (GNU) were chemically synthesized, labeled with SERS active molecules, conjugated with polymers, functionalized with antibodies as capturing substrates and tested in two different sensing configurations: pairs of GNUs-GNUs and GNUs-GNSs. When the target antigen is present in the analyte solution, nanoparticle bridging occurs and a subsequent amplification of the characteristic Raman signal of the label molecule appears due to the formation of hot-spots in interparticle gaps. The capability of observing small analyte concentrations in liquid samples with an easy-to-handle portable Raman device makes the proposed system feasible for rapid, non-invasive and cost-effective clinical or laboratory use.
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Affiliation(s)
- Andra-Sorina Tatar
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute in Bio-Nano-Sciences, Babes-Bolyai University, 42 Treboniu Laurian Street, 400271 Cluj-Napoca, Romania
| | - Cosmin Farcău
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute in Bio-Nano-Sciences, Babes-Bolyai University, 42 Treboniu Laurian Street, 400271 Cluj-Napoca, Romania; National Institute for Research and Development of Isotopic and Molecular Technologies, 67-103 Donat, 400293 Cluj-Napoca, Romania.
| | - Adriana Vulpoi
- Nanostructured Materials and Bio-Nano-Interfaces Center, Interdisciplinary Research Institute in Bio-Nano-Sciences, Babes-Bolyai University, 42 Treboniu Laurian Street, 400271 Cluj-Napoca, Romania.
| | - Sanda Boca
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute in Bio-Nano-Sciences, Babes-Bolyai University, 42 Treboniu Laurian Street, 400271 Cluj-Napoca, Romania.
| | - Simion Astilean
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute in Bio-Nano-Sciences, Babes-Bolyai University, 42 Treboniu Laurian Street, 400271 Cluj-Napoca, Romania; Biomolecular Physics Department, Faculty of Physics, Babes-Bolyai University, 1 Kogalniceanu Street, 400084 Cluj-Napoca, Romania.
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Hossain MK, Drmosh QAQ, Arifuzzaman M. Silver Nanoparticles, Nanoneedles and Nanorings: Impact of Electromagnetic Near-Field on Surface-Enhanced Raman Scattering. Phys Chem Chem Phys 2022; 24:8787-8799. [DOI: 10.1039/d1cp05681f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Dimension of plasmonic nanostructures does matter in localizing electromagnetic (EM) field and enhanced surface-enhanced Raman scattering (SERS)-activity. Zero-dimensional (0D) -, one-dimensional (1D) - and two-dimensional (2D) - plasmonic nanostructures are...
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Lin B, Wang Y, Yao Y, Chen L, Zeng Y, Li L, Lin Z, Guo L. Oil-Free Gold Nanobipyramid@Ag Microgels as a Functional SERS Substrate for Direct Detection of Small Molecules in a Complex Sample Matrix. Anal Chem 2021; 93:16727-16733. [PMID: 34851090 DOI: 10.1021/acs.analchem.1c04797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Surface-enhanced Raman scattering (SERS) is a super-sensitive analysis technology based on the target molecular fingerprint information. The enhancement of local electromagnetic field of the SERS substrate would increase the target molecules' Raman intensity which adsorb on the surface of nanoparticles. However, the existing adhesive macromolecules in the complex mixed sample would interfere with the adsorption of small target molecules, and it weakens the Raman intensity of target molecules. Microgels are one of the potential materials to suppress the interference of adhesive macromolecules and to avoid the complex pretreatments. However, most of the current microgel synthesis methods involve complex operations with precise instrumentation or the interference of oil and organic reagents. In this work, a simple and oil-free method was proposed to synthesize the gold nanobipyramid (Au NBP)@Ag@hyaluronic acid microgel via the condensation reaction of carboxyl and amino groups. As a proof-of-concept demonstration for small-molecule detection, the rhodamine 6G (R6G) molecules were allowed to enter inside the microgel through the meshes and adsorb on the surface of Au NBP@Ag nanoparticles within 30 min, while the macromolecule (bovine serum albumin in this case) was retained outside the microgel in the meantime. In addition, under the combined action of lightning rod effect of Au NBP and surface plasmon resonance effect of silver render the microgels with high SERS activity. The synthetic Au NBP@Ag@hyaluronic acid microgels were applied to detect 6-thioguanine in the human serum without any pretreatment process, and it showed a high signal enhancement and stable SERS signal, which can satisfy the requirement of clinical diagnosis. These results show that the proposed microgels have potential applications in the field of point-of-care testing.
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Affiliation(s)
- Bingyong Lin
- Jiaxing Key Laboratory of Molecular Recognition and Sensing; College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, PR China.,Institute of Nanomedicine and Nanobiosensing, MOE Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou 350116, PR China
| | - Yueliang Wang
- Jiaxing Key Laboratory of Molecular Recognition and Sensing; College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, PR China
| | - Yuanyuan Yao
- Jiaxing Key Laboratory of Molecular Recognition and Sensing; College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, PR China
| | - Lifen Chen
- Jiaxing Key Laboratory of Molecular Recognition and Sensing; College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, PR China
| | - Yanbo Zeng
- Jiaxing Key Laboratory of Molecular Recognition and Sensing; College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, PR China
| | - Lei Li
- Jiaxing Key Laboratory of Molecular Recognition and Sensing; College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, PR China
| | - Zhenyu Lin
- Institute of Nanomedicine and Nanobiosensing, MOE Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou 350116, PR China
| | - Longhua Guo
- Jiaxing Key Laboratory of Molecular Recognition and Sensing; College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, PR China
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14
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Apostolopoulou A, Chiotellis A, Salvanou EA, Makrypidi K, Tsoukalas C, Kapiris F, Paravatou-Petsotas M, Papadopoulos M, Pirmettis IC, Koźmiński P, Bouziotis P. Synthesis and In Vitro Evaluation of Gold Nanoparticles Functionalized with Thiol Ligands for Robust Radiolabeling with 99mTc. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:2406. [PMID: 34578721 PMCID: PMC8471789 DOI: 10.3390/nano11092406] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 09/08/2021] [Accepted: 09/10/2021] [Indexed: 12/12/2022]
Abstract
Radiolabeled gold nanoparticles (AuNPs) have been widely used for cancer diagnosis and therapy over recent decades. In this study, we focused on the development and in vitro evaluation of four new Au nanoconjugates radiolabeled with technetium-99m (99mTc) via thiol-bearing ligands attached to the NP surface. More specifically, AuNPs of two different sizes (2 nm and 20 nm, referred to as Au(2) and Au(20), respectively) were functionalized with two bifunctional thiol ligands (referred to as L1H and L2H). The shape, size, and morphology of both bare and ligand-bearing AuNPs were characterized by transmission electron microscopy (TEM) and dynamic light scattering (DLS) techniques. In vitro cytotoxicity was assessed in 4T1 murine mammary cancer cells. The AuNPs were successfully radiolabeled with 99mTc-carbonyls at high radiochemical purity (>95%) and showed excellent in vitro stability in competition studies with cysteine and histidine. Moreover, lipophilicity studies were performed in order to determine the lipophilicity of the radiolabeled conjugates, while a hemolysis assay was performed to investigate the biocompatibility of the bare and functionalized AuNPs. We have shown that the functionalized AuNPs developed in this study lead to stable radiolabeled nanoconstructs with the potential to be applied in multimodality imaging or for in vivo tracking of drug-carrying AuNPs.
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Affiliation(s)
- Adamantia Apostolopoulou
- National Center for Scientific Research “Demokritos”, Institute of Nuclear & Radiological Sciences & Technology, Energy & Safety, Agia Paraskevi, 15341 Athens, Greece; (A.A.); (A.C.); (E.-A.S.); (K.M.); (C.T.); (F.K.); (M.P.-P.); (M.P.); (I.C.P.)
- Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zographou, 15771 Athens, Greece
| | - Aristeidis Chiotellis
- National Center for Scientific Research “Demokritos”, Institute of Nuclear & Radiological Sciences & Technology, Energy & Safety, Agia Paraskevi, 15341 Athens, Greece; (A.A.); (A.C.); (E.-A.S.); (K.M.); (C.T.); (F.K.); (M.P.-P.); (M.P.); (I.C.P.)
| | - Evangelia-Alexandra Salvanou
- National Center for Scientific Research “Demokritos”, Institute of Nuclear & Radiological Sciences & Technology, Energy & Safety, Agia Paraskevi, 15341 Athens, Greece; (A.A.); (A.C.); (E.-A.S.); (K.M.); (C.T.); (F.K.); (M.P.-P.); (M.P.); (I.C.P.)
| | - Konstantina Makrypidi
- National Center for Scientific Research “Demokritos”, Institute of Nuclear & Radiological Sciences & Technology, Energy & Safety, Agia Paraskevi, 15341 Athens, Greece; (A.A.); (A.C.); (E.-A.S.); (K.M.); (C.T.); (F.K.); (M.P.-P.); (M.P.); (I.C.P.)
| | - Charalampos Tsoukalas
- National Center for Scientific Research “Demokritos”, Institute of Nuclear & Radiological Sciences & Technology, Energy & Safety, Agia Paraskevi, 15341 Athens, Greece; (A.A.); (A.C.); (E.-A.S.); (K.M.); (C.T.); (F.K.); (M.P.-P.); (M.P.); (I.C.P.)
| | - Fotis Kapiris
- National Center for Scientific Research “Demokritos”, Institute of Nuclear & Radiological Sciences & Technology, Energy & Safety, Agia Paraskevi, 15341 Athens, Greece; (A.A.); (A.C.); (E.-A.S.); (K.M.); (C.T.); (F.K.); (M.P.-P.); (M.P.); (I.C.P.)
| | - Maria Paravatou-Petsotas
- National Center for Scientific Research “Demokritos”, Institute of Nuclear & Radiological Sciences & Technology, Energy & Safety, Agia Paraskevi, 15341 Athens, Greece; (A.A.); (A.C.); (E.-A.S.); (K.M.); (C.T.); (F.K.); (M.P.-P.); (M.P.); (I.C.P.)
| | - Minas Papadopoulos
- National Center for Scientific Research “Demokritos”, Institute of Nuclear & Radiological Sciences & Technology, Energy & Safety, Agia Paraskevi, 15341 Athens, Greece; (A.A.); (A.C.); (E.-A.S.); (K.M.); (C.T.); (F.K.); (M.P.-P.); (M.P.); (I.C.P.)
| | - Ioannis C. Pirmettis
- National Center for Scientific Research “Demokritos”, Institute of Nuclear & Radiological Sciences & Technology, Energy & Safety, Agia Paraskevi, 15341 Athens, Greece; (A.A.); (A.C.); (E.-A.S.); (K.M.); (C.T.); (F.K.); (M.P.-P.); (M.P.); (I.C.P.)
| | - Przemysław Koźmiński
- Centre of Radiochemistry and Nuclear Chemistry, Institute of Nuclear Chemistry and Technology, Dorodna 16 Str., 03-195 Warsaw, Poland;
| | - Penelope Bouziotis
- National Center for Scientific Research “Demokritos”, Institute of Nuclear & Radiological Sciences & Technology, Energy & Safety, Agia Paraskevi, 15341 Athens, Greece; (A.A.); (A.C.); (E.-A.S.); (K.M.); (C.T.); (F.K.); (M.P.-P.); (M.P.); (I.C.P.)
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15
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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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16
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Ding H, Chen Z. Nanotheranostic Application of Fluorescent Protein-Gold Nanocluster Hybrid Materials: A Mini-review. Nanotheranostics 2021; 5:461-471. [PMID: 34055575 PMCID: PMC8156216 DOI: 10.7150/ntno.58060] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 04/21/2021] [Indexed: 11/10/2022] Open
Abstract
The gold nanoclusters (Au NCs) are a special kind of gold nanomaterial containing several gold atoms. Because of their small size and large surface area, Au NCs possess macroscopic quantum tunneling and dielectric domain effects. Furthermore, Au NCs fluorescent materials have longer luminous time and better photobleaching resistance compared with other fluorescent materials. The synthetic process of traditional Au NCs is complicated. Traditional Au NCs are prepared mainly by using polyamide amine type dendrites, and sixteen alkyl trimethylamine bromide or sulfhydryl small molecule as stabilizers. They are consequently synthesized by the reduction of strong reducing agents such as sodium borohydride. Notably, these materials are toxic and environmental-unfriendly. Therefore, there is an urgent need to develop more effective methods for synthesizing Au NCs via a green approach. On the other hand, the self-assembly of protein gold cluster-based materials, and their biomedical applications have become research hotspots in this field. We have been working on the synthesis, assembly and application of protein conjugated gold clusters for a long time. In this review, the synthesis and assembly of protein-gold nanoclusters and their usage in cell imaging and other medical research are discussed.
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Affiliation(s)
- Han Ding
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang, 325000, China.,State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry and Institute of Theoretical Chemistry, Jilin University, Changchun 130012, China.,Institute for translational medicine, Affiliated Hospital, Medical college of Qingdao University, Dengzhou Road 38, Qingdao 266021, China
| | - Zhijun Chen
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry and Institute of Theoretical Chemistry, Jilin University, Changchun 130012, China
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17
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Sang Y, Chen X, Zhang L, Li D, Xu H. Electrospun polymeric nanofiber decorated with sea urchin-like gold nanoparticles as an efficient and stable SERS platform. J Colloid Interface Sci 2021; 590:125-133. [PMID: 33524713 DOI: 10.1016/j.jcis.2021.01.036] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 01/11/2021] [Accepted: 01/12/2021] [Indexed: 11/24/2022]
Abstract
Surface enhanced Raman scattering (SERS)-based nanoprobes have been used as well-established analytical tools enabling single-molecule detection. In this work, we report a facile method to decorate sea urchin-like gold nanoparticles (SUGNPs) on the surface of PMMA/P4VP nanofibers. Firstly, PMMA/P4VP nanofibers within the submicrometer size range were prepared by applying the electrospinning technique. Then, the incorporation of SUGNPs on the surface of PMMA/P4VP nanofiber was achieved by immersing PMMA/P4VP nanofiber into freshly prepared SUGNP aqueous solution through the specific Au-N interactions. The as-fabricated SUGNP-coated PMMA/P4VP nanofibers exhibited good sensitivity and reproducibility in SERS measurements with the relative standard deviation down to 6.6%, by employing 4-mercaptobenzoic acid as a probe molecule with 30 min of soaking time. Hence, we envisage that the SUGNP-coated PMMA/P4VP nanofibers can act as efficient and stable SERS substrates for potential applications in molecular detection as well as chemical and biological analysis.
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Affiliation(s)
- Yaqin Sang
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, China
| | - Xin Chen
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, China
| | - Li Zhang
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, China
| | - Dongyan Li
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, China
| | - Hui Xu
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, China.
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18
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Biswas S, Chawda M, Thakur K, Gudi R, Bellare J. Physicochemical Variation in Nanogold-Based Ayurved Medicine Suvarna Bhasma Produced by Various Manufacturers Lead to Different In Vivo Bioaccumulation Profiles. J Evid Based Integr Med 2021; 26:2515690X211011064. [PMID: 33906452 PMCID: PMC8743929 DOI: 10.1177/2515690x211011064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Suvarna Bhasma (SB) is a gold particle-based medicine that is used in Ayurved to treat tuberculosis, arthritis and nervous diseases. Traditionally, the Ayurved preparation processes of SB do exist, but they are all long, tedious and involve several steps. Due to this, there is a possibility of bypassing the necessary Ayurved processes or non-adherence to all steps or use of synthetic gold particles. Our aim is to characterize 5 commercial SB preparations from 5 different manufacturers. A comparative physicochemical, pharmacokinetic (PK) and bioaccumulation study was carried out on all the 5 SB preparations. The general appearance such as color and texture of these 5 samples were different from each other. The size, shape and gold concentration (from 32-98 wt%) varied among all the 5 SBs. The accumulation of ionic gold in zebrafish and gold concentration profiles in rat blood were found to be significantly different for all the 5 SBs. Non-compartmental PK model obtained from the concentration-time profile showed significant differences in various PK parameters such as peak concentration (Cmax), half-life (t1/2) and terminal elimination slope (λz) for all the 5 SB preparations. SB-B showed the highest Cmax (8.55 μg/L), whereas SB-D showed the lowest Cmax (4.66 μg/L). The dissolution of ionic gold from SBs in zebrafish tissue after the oral dose had a 5.5-fold difference between the highest and lowest ionic gold concentrations. All the 5 samples showed distinct physicochemical and biological properties. Based on characteristic microscopic morphology, it was found that 2 preparations among them were suspected of being manufactured by non-adherence to the mentioned Ayurved references.
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Affiliation(s)
- Snehasis Biswas
- Department of Chemical Engineering, 29491Indian Institute of Technology Bombay, Powai, Mumbai, Maharashtra, India
| | - Mukesh Chawda
- 76813Shree Dhootapapeshwar Limited, Nanubhai Desai Road, Khetwadi, Mumbai, Maharashtra, India
| | - Kapil Thakur
- 76813Shree Dhootapapeshwar Limited, Nanubhai Desai Road, Khetwadi, Mumbai, Maharashtra, India
| | - Ramacharya Gudi
- 76813Shree Dhootapapeshwar Limited, Nanubhai Desai Road, Khetwadi, Mumbai, Maharashtra, India
| | - Jayesh Bellare
- Department of Chemical Engineering, 29491Indian Institute of Technology Bombay, Powai, Mumbai, Maharashtra, India.,Wadhwani Research Centre for Bioengineering, 29491Indian Institute of Technology Bombay, Powai, Mumbai, Maharashtra, India
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19
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López-Lorente ÁI. Recent developments on gold nanostructures for surface enhanced Raman spectroscopy: Particle shape, substrates and analytical applications. A review. Anal Chim Acta 2021; 1168:338474. [PMID: 34051992 DOI: 10.1016/j.aca.2021.338474] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 03/29/2021] [Accepted: 03/30/2021] [Indexed: 02/07/2023]
Abstract
Surface enhanced Raman spectroscopy (SERS) is a powerful technique for sensitive analysis which is attracting great attention in the last decades. In this review, different gold nanostructures that have been exploited for SERS analysis are described, ranging from gold nanospheres to anisotropic and complex-shaped gold nanostructures, in which the presence of high aspect ratio features leads to an increment of the electromagnetic field at the surface of the nanomaterial, resulting in enhanced SERS response. In addition to the shape of the nanostructure, the interparticle nanogaps play a prominent role in the SERS efficiency. In this sense, different approaches such as nanoaggregation and formation of assemblies and ordered structures lead to the creation of the so-called hot spots. SERS measurements may be performed in solution, while usually the nanostructures are deposited building a SERS substrate, which can be created via attachment of chemically prepared gold nanostructures, as well as via top-down physical methods. Among the classical supports for creating the SERS substrates, in the last years there is a trend towards the development of flexible supports based on polymers as well as paper. Finally, some recent applications of gold nanostructures-based SERS substrates within the analytical field are discussed to spotlight the potential of this technique in real-world analytical scenarios.
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Affiliation(s)
- Ángela I López-Lorente
- Departamento de Química Analítica, Instituto Universitario de Investigación en Química Fina y Nanoquímica IUNAN, Universidad de Córdoba, Campus de Rabanales, Edificio Marie Curie, E-14071, Córdoba, Spain.
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20
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Zhu T, Sun Y, Li C, Xia Y, Wang G, Lu W, Shao M, Man B, Yang C. Film wrap nanoparticle system with the graphene nano-spacer for SERS detection. OPTICS EXPRESS 2021; 29:1360-1370. [PMID: 33726353 DOI: 10.1364/oe.410603] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 12/17/2020] [Indexed: 06/12/2023]
Abstract
Film wrap nanoparticle system (FWPS) is proposed and fabricated to perform SERS effect, where the Ag nanoparticle was completely wrapped by Au film and the double-layered graphene was selected as the sub-nano spacer. In this system, the designed nanostructure can be fully rather than partly used to generate hotspots and absorb probe molecules, compared to the nanoparticle to nanoparticle system (PTPS) or nanoparticle to film system (PTFS). The optimal fabricating condition and performance of this system were studied by the COMSOL Multiphysics. The simulation results show that the strongly large-scale localized electromagnetic field appears in the whole space between the Ag nanoparticle and Au film. The experimental results show that the FWPS presents excellent sensitivity (crystal violet (CV): 10-11 M), uniformity, stability and high enhancement factor (EF: 2.23×108). Malachite green (MG; 10-10 M) on the surface of fish and DNA strands with different base sequence (A, T, C) were successfully detected. These advanced results indicate that FWPS is highly promising to be applied for the detection of environmental pollution and biomolecules.
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21
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Liang J, Kong J, Zhang J. Hollow Concave Zinc‐Doped Co
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Nanosheets/Carbon Composites as Ultrahigh Capacity Anode Materials for Lithium‐Ion Batteries. ChemElectroChem 2021. [DOI: 10.1002/celc.202001416] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jin Liang
- MOE Key Laboratory of Materials Physics and Chemistry in Extraordinary Conditions Shaanxi Key Laboratory of Macromolecular Science and Technology School of Chemistry and Chemical Engineering Northwestern Polytechnical University Xi'an 710129 P. R. China
| | - Jie Kong
- MOE Key Laboratory of Materials Physics and Chemistry in Extraordinary Conditions Shaanxi Key Laboratory of Macromolecular Science and Technology School of Chemistry and Chemical Engineering Northwestern Polytechnical University Xi'an 710129 P. R. China
| | - Jian Zhang
- Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology School of Chemistry and Chemical Engineering Northwestern Polytechnical University Xi'an 710129 P. R. China
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22
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23
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Highly-selective detection of EGFR mutation gene in lung cancer based on surface enhanced Raman spectroscopy and asymmetric PCR. J Pharm Biomed Anal 2020; 190:113522. [PMID: 32777732 DOI: 10.1016/j.jpba.2020.113522] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 07/26/2020] [Accepted: 07/27/2020] [Indexed: 11/23/2022]
Abstract
The evaluation of EGFR mutation genes in circulating tumor DNA (ctDNA) in blood sample is key for patients with lung cancer. Surface-enhanced Raman scattering (SERS) has potential for trace detection of DNA or RNA. The detection rate offered by current methods can not meet clinical demand. By combining asymmetric polymerase chain reaction (PCR) and SERS, a highly-selective detection for EGFR mutation genes in lung cancer was developed. Sea-urchin like Au nanoclusters (AuNCs) were synthesized via Ag seed-mediated growth. AuNCs with a diameter of 120 nm were covered with 79 nanopricks (20 nm). Then, EGFR mutation specific molecular beacons (MBs) labeled with Cy3 were coated on the surface of AuNCs. The loading amount of MBs was calculated as 5720 ± 740 on one AuNCs. These AuNCs probes had good efficiency (equilibrium time: 20 minutes) with high sensitivity (detection limit: 5.8 nM), high specificity (capable of single-base mismatch recognition) and good stability against nucleases. Following this, asymmetric PCR was performed to obtain large numbers of single-stranded DNA (ssDNA, E746-A750del). The ssDNA was incubated with the AuNCs probes and tested quantitatively based on the SERS signals of the AuNCs probes. This combined asymmetric PCR-SERS method had a very high detection threshold (4.24 fM). The asymmetric PCR-SERS method was shown to have an overall sensitivity of 75% and specificity of 100% in a further 15 clinical blood samples. This method is proved to be promising for non-invasive and sensitive detection of EGFR mutations in ctDNA.
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24
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Zhu Q, Mao W, Zhang C, Zhou Y, Tang Z, Yu C. Au@BSA microspheres-luminol and a novel luminescent Zeolitic Imidazolate Framework were used for potential-resolved electrochemiluminescence to detect dual targets. Anal Chim Acta 2020; 1140:89-98. [PMID: 33218493 DOI: 10.1016/j.aca.2020.09.057] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 09/24/2020] [Accepted: 09/25/2020] [Indexed: 12/21/2022]
Abstract
Here, a novel electrochemiluminescence biosensor based on potential-resolved strategy was firstly prepared for the detection of dual targets α2,3-sialylated glycans and α2,6-sialylated glycans. This is the first time that Au@BSA microsphere was used to connect with luminol to enhance its ECL intensity, and it can generate ECL signals at positive potential. Zeolitic Imidazolate Framework-8 (ZIF-8) and Meso-tetra (4-carboxyphenyl) porphyrin (TCPP) were linked using a one-pot method to synthesize a novel luminescent ZIF (L-ZIF) named TZZ, which can emit ECL signals at negative potential. Moreover, magnetite microspheres were used to construct a sandwich-type biosensor to obtain higher sensitivity and reduce background signals. In addition, the biosensor manufactured directly in solution have a wider linear range than constructed on electrode because it has more available space than the electrode surface. Due to the above advantages, the prepared ECL biosensor exhibited high sensitivity, stability and broader linear range, even for practical analysis. Therefore, the prepared ECL biosensor will become a promising method for determination of α2,3-sialylated glycans and α2,6-sialylated glycans in clinical applications in the future. What is more, it provides a potential method for detection of other multi-targets.
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Affiliation(s)
- Qihao Zhu
- College of Pharmacy, Chongqing Medical University, Chongqing, 400016, PR China
| | - Weiran Mao
- Chongqing University Cancer Hospital, Chongqing, 400016, PR China
| | - Chengli Zhang
- The First People's Hospital of Zigong, Zigong, Sichuan, 643000, PR China
| | - Yuan Zhou
- College of Pharmacy, Chongqing Medical University, Chongqing, 400016, PR China
| | - Zhiyong Tang
- Department of Pharmacy, Nanchong Central Hospital, The Second Clinical Medical College, North Sichuan Medical College, Nanchong, Sichuan, 637000, PR China
| | - Chao Yu
- College of Pharmacy, Chongqing Medical University, Chongqing, 400016, PR China.
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25
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Nair RV, Yi PJ, Padmanabhan P, Gulyás B, Murukeshan VM. Au nano-urchins enabled localized surface plasmon resonance sensing of beta amyloid fibrillation. NANOSCALE ADVANCES 2020; 2:2693-2698. [PMID: 36132375 PMCID: PMC9417577 DOI: 10.1039/d0na00164c] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 03/14/2020] [Indexed: 05/17/2023]
Abstract
Early stage detection of neurodegenerative diseases such as Alzheimer's disease (AD) is of utmost importance, as it has become one of the leading causes of death of millions of people. The gradual intellectual decline in AD patients is an outcome of fibrillation of amyloid beta 1-42 (Aβ1-42) peptides in the brain. In this paper, we present localized surface plasmon resonance (LSPR) based sensing of Aβ1-42 fibrillation using Au nano-urchins. Strongly localized field confinement at the spiky nanostructures of nano-urchin surfaces enables them to detect very low concentrations of Aβ1-42. In addition, the LSPR peak of Au nano-urchins, which is very sensitive to ambient conditions, shows significant responses at different fibrillation stages of Aβ1-42. Reduction in LSPR peak intensity with an increase in the fibrillation is chosen as the sensing parameter here. This paper in this context provides LSPR based highly sensitive, label-free and real-time sensing of Aβ1-42 fibrillation that is highly advantageous compared to the existing techniques which require binding additives or fluorescent biomarkers.
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Affiliation(s)
- Radhika V Nair
- Center for Optical and Laser Engineering (COLE), School of Mechanical and Aerospace Engineering, Nanyang Technological University (NTU) 639798 Singapore
| | - Pae Jian Yi
- Center for Optical and Laser Engineering (COLE), School of Mechanical and Aerospace Engineering, Nanyang Technological University (NTU) 639798 Singapore
| | | | - Balázs Gulyás
- Lee Kong Chian School of Medicine, Nanyang Technological University 639798 Singapore
| | - V M Murukeshan
- Center for Optical and Laser Engineering (COLE), School of Mechanical and Aerospace Engineering, Nanyang Technological University (NTU) 639798 Singapore
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26
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Cheng J, Wang P, Su XO. Surface-enhanced Raman spectroscopy for polychlorinated biphenyl detection: Recent developments and future prospects. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2020.115836] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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27
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Regulacio MD, Yang DP, Ye E. Toward greener methods of producing branched metal nanostructures. CrystEngComm 2020. [DOI: 10.1039/c9ce01561b] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
This review highlights the use of biogenic resources (i.e., plant extracts, microorganisms, and biomolecules) as green reagents for the production of technologically promising branched metal nanomaterials.
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Affiliation(s)
- Michelle D. Regulacio
- Institute of Chemistry
- University of the Philippines Diliman
- Quezon City 1101
- Philippines
| | - Da-Peng Yang
- College of Chemical Engineering and Materials Science
- Quanzhou Normal University
- Quanzhou 362000
- PR China
| | - Enyi Ye
- Institute of Materials Research and Engineering
- Agency for Science, Technology and Research (A*STAR)
- Singapore
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28
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Song D, Yang R, Long F, Zhu A. Applications of magnetic nanoparticles in surface-enhanced Raman scattering (SERS) detection of environmental pollutants. J Environ Sci (China) 2019; 80:14-34. [PMID: 30952332 DOI: 10.1016/j.jes.2018.07.004] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 06/25/2018] [Accepted: 07/18/2018] [Indexed: 05/19/2023]
Abstract
Environmental pollution, a major problem worldwide, poses considerable threat to human health and ecological environment. Efficient and reliable detection technologies, which focus on the appearance of emerging environmental and trace pollutants, are urgently needed. Surface-enhanced Raman scattering (SERS) has become an attractive analytical tool for sensing trace targets in environmental field because of its inherent molecular fingerprint specificity and high sensitivity. In this review, we focused on the recent developments in the integration of magnetic nanoparticles (MNPs) with SERS for facilitating sensitive detection of environmental pollutants. An overview and classification of different types of MNPs for SERS detection were initially provided, enabling us to categorize the huge amount of literature that was available in the interdisciplinary research field of MNPs based SERS technology. Then, the basic working principles and applications of MNPs in SERS detection were presented. Subsequently, the detection technologies integrating MNPs with SERS that eventually were used for the detection of various environmental pollutions were reviewed. Finally, the advantages of MNP-basedSERS detection technology for environmental pollutants were concluded, and the current challenges and future outlook of this technology in practical applications were highlighted. The application of the MNPs-basedSERS techniques for environmental analysis will be significantly advanced with the great progresses of the nanotechnologies, optics, and materials.
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Affiliation(s)
- Dan Song
- School of Environment and Natural Resources, Renmin University of China, Beijing 100872, China
| | - Rong Yang
- School of Environment and Natural Resources, Renmin University of China, Beijing 100872, China
| | - Feng Long
- School of Environment and Natural Resources, Renmin University of China, Beijing 100872, China.
| | - Anna Zhu
- Research Institute of Chemical Defense, Academy of Military Sciences PLA China, Beijing 102205, China; State Key Laboratory of NBC Protection FOR Civilian, Beijing 102205, China.
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29
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Tang W, Fan W, Zhang W, Yang Z, Li L, Wang Z, Chiang YL, Liu Y, Deng L, He L, Shen Z, Jacobson O, Aronova MA, Jin A, Xie J, Chen X. Wet/Sono-Chemical Synthesis of Enzymatic Two-Dimensional MnO 2 Nanosheets for Synergistic Catalysis-Enhanced Phototheranostics. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1900401. [PMID: 30920710 PMCID: PMC6587182 DOI: 10.1002/adma.201900401] [Citation(s) in RCA: 97] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 03/02/2019] [Indexed: 05/05/2023]
Abstract
2D nanomaterials have attracted broad interest in the field of biomedicine owing to their large surface area, high drug-loading capacity, and excellent photothermal conversion. However, few studies report their "enzyme-like" catalytic performance because it is difficult to prepare enzymatic nanosheets with small size and ultrathin thickness by current synthetic protocols. Herein, a novel one-step wet-chemical method is first proposed for protein-directed synthesis of 2D MnO2 nanosheets (M-NSs), in which the size and thickness can be easily adjusted by the protein dosage. Then, a unique sono-chemical approach is introduced for surface functionalization of the M-NSs with high dispersity/stability as well as metal-cation-chelating capacity, which can not only chelate 64 Cu radionuclides for positron emission tomography (PET) imaging, but also capture the potentially released Mn2+ for enhanced biosafety. Interestingly, the resulting M-NS exhibits excellent enzyme-like activity to catalyze the oxidation of glucose, which represents an alternative paradigm of acute glucose oxidase for starving cancer cells and sensitizing them to thermal ablation. Featured with outstanding phototheranostic performance, the well-designed M-NS can achieve effective photoacoustic-imaging-guided synergistic starvation-enhanced photothermal therapy. This study is expected to establish a new enzymatic phototheranostic paradigm based on small-sized and ultrathin M-NSs, which will broaden the application of 2D nanomaterials.
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Affiliation(s)
- Wei Tang
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (NIH), Bethesda, MD, 20892, USA
| | - Wenpei Fan
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (NIH), Bethesda, MD, 20892, USA
| | - Weizhong Zhang
- Department of Chemistry, University of Georgia, Athens, GA, 30602, USA
| | - Zhen Yang
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (NIH), Bethesda, MD, 20892, USA
| | - Ling Li
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (NIH), Bethesda, MD, 20892, USA
| | - Zhantong Wang
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (NIH), Bethesda, MD, 20892, USA
| | - Ya-Ling Chiang
- Laboratory of Cellular Imaging and Macfromolecular Biophysics, National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (NIH), Bethesda, MD, 20892, USA
| | - Yijing Liu
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (NIH), Bethesda, MD, 20892, USA
| | - Liming Deng
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (NIH), Bethesda, MD, 20892, USA
| | - Liangcan He
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (NIH), Bethesda, MD, 20892, USA
| | - Zheyu Shen
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (NIH), Bethesda, MD, 20892, USA
| | - Orit Jacobson
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (NIH), Bethesda, MD, 20892, USA
| | - Maria A Aronova
- Laboratory of Cellular Imaging and Macfromolecular Biophysics, National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (NIH), Bethesda, MD, 20892, USA
| | - Albert Jin
- Laboratory of Cellular Imaging and Macfromolecular Biophysics, National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (NIH), Bethesda, MD, 20892, USA
| | - Jin Xie
- Department of Chemistry, University of Georgia, Athens, GA, 30602, USA
| | - Xiaoyuan Chen
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (NIH), Bethesda, MD, 20892, USA
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30
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Huang Z, Zhang A, Zhang Q, Cui D. Nanomaterial-based SERS sensing technology for biomedical application. J Mater Chem B 2019. [DOI: 10.1039/c9tb00666d] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Over the past few years, nanomaterial-based surface-enhanced Raman scattering (SERS) detection has emerged as a new exciting field in which theoretical and experimental studies of the structure and function of nanomaterials have become a focus.
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Affiliation(s)
- Zhicheng Huang
- Institute of Nano Biomedicine and Engineering
- Department of Instrument Science and Engineering
- Thin Film and Microfabrciation Key Laboratory of Administration of Education
- School of Electronic Information and Electrical Engineering
- Shanghai Jiao Tong University
| | - Amin Zhang
- Institute of Nano Biomedicine and Engineering
- Department of Instrument Science and Engineering
- Thin Film and Microfabrciation Key Laboratory of Administration of Education
- School of Electronic Information and Electrical Engineering
- Shanghai Jiao Tong University
| | - Qian Zhang
- Institute of Nano Biomedicine and Engineering
- Department of Instrument Science and Engineering
- Thin Film and Microfabrciation Key Laboratory of Administration of Education
- School of Electronic Information and Electrical Engineering
- Shanghai Jiao Tong University
| | - Daxiang Cui
- Institute of Nano Biomedicine and Engineering
- Department of Instrument Science and Engineering
- Thin Film and Microfabrciation Key Laboratory of Administration of Education
- School of Electronic Information and Electrical Engineering
- Shanghai Jiao Tong University
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31
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Graphene oxide wrapped with gold nanorods as a tag in a SERS based immunoassay for the hepatitis B surface antigen. Mikrochim Acta 2018; 185:458. [PMID: 30218157 DOI: 10.1007/s00604-018-2989-x] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Accepted: 09/01/2018] [Indexed: 10/28/2022]
Abstract
A composite consisting of graphene oxide and gold nanorods (GO-GNRs) was designed for the trace determination of hepatitis B surface antigen (HBsAg) using surface enhanced Raman spectroscopy (SERS). GO contains numerous carboxy and hydroxy groups on its surface and therefore can serve as the substrate for decoration with GNRs and for immobilizing antibody against HBsAg. The GNRs (carrying the SERS probe 2-mercaptopyridine) exhibit high SERS activity, and this improves the sensitivity of the biosensor. The antibody on the GO-GNRs binds HBsAg with high specificity, and it results in excellent selectivity. The SERS signal (measured at 1002 cm-1) increases in the 1-1000 pg·mL-1 HBsAg concentrations range, and the limit of detection is 0.05 pg·mL-1 (at an S/N ratio of 3). The immunoassay achieves the sensitive and selective determination of HBsAg in serum and expands the potential application of GO-GNR based SERS tag in clinical research. Graphical abstract A novel graphene oxide-gold nanorod (GO-GNRs) based surface-enhanced Raman scattering (SERS) tag for immunoassay was designed. It allows for sensitive and selective determination of HBsAg in serum. The method is expected to expand the potential application in the environment, in medicine and in food analysis.
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32
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Devi MM, Dolai N, Sreehala S, Jaques YM, Mishra RSK, Galvao DS, Tiwary CS, Sharma S, Biswas K. Morphology controlled graphene-alloy nanoparticle hybrids with tunable carbon monoxide conversion to carbon dioxide. NANOSCALE 2018; 10:8840-8850. [PMID: 29714367 DOI: 10.1039/c7nr09688g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Selective oxidation of CO to CO2 using metallic or alloy nanoparticles as catalysts can solve two major problems of energy requirements and environmental pollution. Achieving 100% conversion efficiency at a lower temperature is a very important goal. This requires sustained efforts to design and develop novel supported catalysts containing alloy nanoparticles. In this regard, the decoration of nanoalloys with graphene, as a support for the catalyst, can provide a novel structure due to the synergic effect of the nanoalloys and graphene. Here, we demonstrate the effect of nano-PdPt (Palladium-Platinum) alloys having different morphologies on the catalytic efficiency for the selective oxidation of CO. Efforts were made to prepare different morphologies of PdPt alloy nanoparticles with the advantage of tuning the capping agent (PVP - polyvinyl pyrollidone) and decorating them on graphene sheets via the wet-chemical route. The catalytic activity of the G-PdPt hybrids with an urchin-like morphology has been found to be superior (higher % conversion at 135 °C lower) to that with a nanoflower morphology. The above experimental observations are further supported by molecular dynamics (MD) simulations.
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Affiliation(s)
- M Manolata Devi
- Department of Materials Science and Engineering, Indian Institute of Technology Kanpur, Kanpur-208016, India.
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Galvanic-Cell-Reaction-Driven Deposition of Large-Area Au Nanourchin Arrays for Surface-Enhanced Raman Scattering. NANOMATERIALS 2018; 8:nano8040265. [PMID: 29690589 PMCID: PMC5923595 DOI: 10.3390/nano8040265] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 04/10/2018] [Accepted: 04/18/2018] [Indexed: 11/16/2022]
Abstract
Here we report a low-cost synthetic approach for the direct fabrication of large-area Au nanourchin arrays on indium tin oxide (ITO) via a facile galvanic-cell-reaction-driven deposition in an aqueous solution of chloroauric acid and poly(vinyl pyrrolidone) (PVP). The homogeneous Au nanourchins are composed of abundant sharp nanotips, which can served as nanoantennas and increase the local electromagnetic field enhancement dramatically. Finite element theoretical calculations confirm the strong electromagnetic field can be created around the sharp nanotips and located in the nanogaps between adjacent tips of the Au nanourchins. In addition, the interparticle nanogaps between the neighboring Au nanourchins may create additional hotspots, which can induce the higher electromagnetic field intensity. By using rhodamine 6G as a test molecule, the large-area Au nanourchin arrays on ITO exhibit active, uniform, and reproducible surface-enhanced Raman scattering (SERS) effect. To trial their practical application, the Au nanourchin arrays are utilized as SERS substrates to detect 3,3’,4,4’-tetrachlorobiphenyl (PCB-77) one congener of polychlorinated biphenyls (PCBs) as a notorious class of persistent organic pollutants. The characteristic Raman peaks can be still identified when the concentration of PCB-77 is down to 5 × 10−6 M.
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34
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Han L, Liu P, Zhang H, Li F, Liu A. Phage capsid protein-directed MnO 2 nanosheets with peroxidase-like activity for spectrometric biosensing and evaluation of antioxidant behaviour. Chem Commun (Camb) 2018; 53:5216-5219. [PMID: 28443853 DOI: 10.1039/c7cc02049j] [Citation(s) in RCA: 81] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Small molecular weight proteins (5.21 kDa) were used as bio-templates to synthesize MnO2 nanosheets (NSs). This work will open up a protein-directed avenue to synthesize 2D morphology. Further, the as-prepared MnO2 NSs showed intrinsic peroxidase-like activity and were then applied for glucose detection and evaluation of antioxidant behaviours of typical antioxidants.
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Affiliation(s)
- Lei Han
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, 700 Changcheng Road, Qingdao, Shandong, China.
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35
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Shi Y, Chen N, Su Y, Wang H, He Y. Silicon nanohybrid-based SERS chips armed with an internal standard for broad-range, sensitive and reproducible simultaneous quantification of lead(ii) and mercury(ii) in real systems. NANOSCALE 2018; 10:4010-4018. [PMID: 29431805 DOI: 10.1039/c7nr07935d] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Lead ions (Pb2+) and mercury ions (Hg2+), the two commonly coexisting heavy metal ions, pose severe risks to environment and human health. To date, no surface-enhanced Raman scattering (SERS) sensor has been reported for the simultaneous quantification of Pb2+ and Hg2+ in real systems. Herein, the first demonstration of SERS chips for simultaneous quantification of Pb2+ and Hg2+ in real systems is presented based on the combination of reproducible silicon nanohybrid substrates and a corrective internal standard (IS) sensing strategy. This chip was made of a silver nanoparticle-decorated silicon wafer via modification of the IS, i.e. 4-aminothiophenol, molecules. The as-prepared chip was further functionalized with Pb2+- and Hg2+- specific DNA strands capable of simultaneously detecting Pb2+ and Hg2+. Quantitatively, upon correction by the IS Raman signals, the broad dynamic ranges from 100 pM to 10 μM for Pb2+ and from 1 nM to 10 μM for Hg2+ were achieved, with the detection limit down to 19.8 ppt for Pb2+ and 168 ppt for Hg2+. For real applications, we further demonstrated that Pb2+ and Hg2+ spiked into industrial wastewater could be readily distinguished via the presented chip, and the relative standard deviation (RSD) value was less than ∼15%. More significantly, the resulting SERS chip can be well coupled with a hand-held Raman instrument and can then be used for the qualitative analysis of both Pb2+ and Hg2+ in real systems in a portable manner. Our results suggest that this high-quality SERS chip is a powerful tool for on-site detection of various heavy metal ions in real samples in the field of food safety and environment protection.
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Affiliation(s)
- Yu Shi
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Institute of Functional Nano and Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, Jiangsu 215123, China.
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36
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Alinejad Z, Mahdavian AR. Polymerization induced shape-tuning and multi-triggered switchability of gold nanostructures. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.01.072] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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37
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Ma L, Zhao G, Fang Y, Dai W, Ma N. Facile synthesis of mesoporous calcium carbonate particles with finger citron residue as template and their adsorption performances for Congo red. ADSORPT SCI TECHNOL 2017. [DOI: 10.1177/0263617417727228] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Herein, we demonstrate a simple and cost-effective method to prepare the new hierarchically Ni-doped porous CaCO3 monoliths in a large scale by mineralizing finger citron residue templates with a calcium acetate precursor. The morphology, microstructure, and element composition of as-prepared adsorbents are characterized by Scanning Electron Microscope (SEM), X-ray Photoelectron Spectroscopy (XPS), Transmission Electron Microscopy (TEM), and N2 adsorption, respectively. Adsorption performance of anionic dye Congo red was investigated in a batch experiment. The results showed that pseudo-second-order kinetic model and Langmuir adsorption isotherm matched well for the Congo red adsorption. Compared with previously reported adsorbents, due to positive and negative charge effect between Congo red and Ni, Ni-doped porous CaCO3 monoliths demonstrated a superior Congo red dye adsorption capability. The results of the present study substantiate that Ni-doped porous CaCO3 monoliths is a promising adsorbent for the removal of the anionic dyes from wastewater.
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Affiliation(s)
| | | | | | - Wei Dai
- Zhejiang Normal University, China
| | - Na Ma
- Zhejiang Normal University, China
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38
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Huang H, Yang DP, Liu M, Wang X, Zhang Z, Zhou G, Liu W, Cao Y, Zhang WJ, Wang X. pH-sensitive Au-BSA-DOX-FA nanocomposites for combined CT imaging and targeted drug delivery. Int J Nanomedicine 2017; 12:2829-2843. [PMID: 28435261 PMCID: PMC5388223 DOI: 10.2147/ijn.s128270] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Albumin-based nanoparticles (NPs) as a drug delivery system have attracted much attention owing to their nontoxicity, non-immunogenicity, great stability and ability to bind to many therapeutic drugs. Herein, bovine serum albumin (BSA) was utilized as a template to prepare Au–BSA core/shell NPs. The outer layer BSA was subsequently conjugated with cis-aconityl doxorubicin (DOX) and folic acid (FA) to create Au–BSA–DOX–FA nanocomposites. A list of characterizations was undertaken to identify the successful conjugation of drug molecules and targeted agents. In vitro cytotoxicity using a cell counting kit-8 (CCK-8) assay indicated that Au–BSA NPs did not display obvious cytotoxicity to MGC-803 and GES-1 cells in the concentration range of 0–100 μg/mL, which can therefore be used as a safe drug delivery carrier. Furthermore, compared with free DOX, Au–BSA–DOX–FA nanocomposites exhibited a pH-sensitive drug release ability and superior antitumor activity in a drug concentration-dependent manner. In vivo computed tomography (CT) imaging experiments showed that Au–BSA–DOX–FA nanocomposites could be used as an efficient and durable CT contrast agent for targeted CT imaging of the folate receptor (FR) overexpressed in cancer tissues. In vivo antitumor experiments demonstrated that Au–BSA–DOX–FA nanocomposites have selective antitumor activity effects on FR-overexpressing tumors and no adverse effects on normal tissues and organs. In conclusion, the Au–BSA–DOX–FA nanocomposite exhibits selective targeting activity, X-ray attenuation activity and pH-sensitive drug release activity. Therefore, it can enhance CT imaging and improve the targeting therapeutic efficacy of FR-overexpressing gastric cancers. Our findings suggest that Au–BSA–DOX–FA nanocomposite is a novel drug delivery carrier and a promising candidate for cancer theranostic applications.
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Affiliation(s)
- He Huang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Tissue Engineering, National Tissue Engineering Center of China, Shanghai
| | - Da-Peng Yang
- College of Chemical Engineering and Materials Science, Quanzhou Normal University, Quanzhou, People's Republic of China
| | - Minghuan Liu
- College of Chemical Engineering and Materials Science, Quanzhou Normal University, Quanzhou, People's Republic of China
| | - Xiangsheng Wang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Tissue Engineering, National Tissue Engineering Center of China, Shanghai
| | - Zhiyong Zhang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Tissue Engineering, National Tissue Engineering Center of China, Shanghai
| | - Guangdong Zhou
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Tissue Engineering, National Tissue Engineering Center of China, Shanghai
| | - Wei Liu
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Tissue Engineering, National Tissue Engineering Center of China, Shanghai
| | - Yilin Cao
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Tissue Engineering, National Tissue Engineering Center of China, Shanghai
| | - Wen Jie Zhang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Tissue Engineering, National Tissue Engineering Center of China, Shanghai
| | - Xiansong Wang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Tissue Engineering, National Tissue Engineering Center of China, Shanghai
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Xia Y, Gao Z, Liao X, Pan C, Zhang Y, Feng X. Rapid synthesis of hierarchical, flower-like Ag microstructures with a gemini surfactant as a directing agent for SERS applications. CrystEngComm 2017. [DOI: 10.1039/c7ce01573a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Various hierarchical Ag microstructures, including sensitive SERS substrate flower-like structures, can be designed and rapidly synthesized under different conditions.
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Affiliation(s)
- Yan Xia
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- P.R. China
- Key Laboratory of Biomedical Polymers
| | - Zhinong Gao
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- P.R. China
- Key Laboratory of Biomedical Polymers
| | - Xueming Liao
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- P.R. China
- Key Laboratory of Biomedical Polymers
| | - Chenchen Pan
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- P.R. China
- Key Laboratory of Biomedical Polymers
| | - Yingfang Zhang
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- P.R. China
- Key Laboratory of Biomedical Polymers
| | - Xuesong Feng
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- P.R. China
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40
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Wang C, Wang J, Li P, Rong Z, Jia X, Ma Q, Xiao R, Wang S. Sonochemical synthesis of highly branched flower-like Fe 3O 4@SiO 2@Ag microcomposites and their application as versatile SERS substrates. NANOSCALE 2016; 8:19816-19828. [PMID: 27878199 DOI: 10.1039/c6nr07295j] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
We report a novel strategy for the synthesis of magnetic-based flower-like silver composite microspheres (Fe3O4@SiO2@Ag microflowers) with a highly branched shell structure through a sonochemical-assisted method. The obtained Fe3O4@SiO2@Ag microflowers possess good dispersity, high magnetic responsiveness, and highly reproducible structures. The size and morphology of the silver petal shell of these microflowers can be easily controlled by varying the experimental parameters. The silver petal provides an effectively large surface area for forming sufficient plasmonic hot spots and capturing target molecules. The microscale magnetic core endows microflowers with superior magnetic nature to enrich targeted analytes and create abundant interparticle hot spots through magnetism-induced aggregation. Hence, Fe3O4@SiO2@Ag microflowers could be a versatile SERS substrate, as verified by the detection of the non-adsorbed R6G molecules and the adsorbed pesticide thiram, with a detection limit as low as 1 × 10-14 M and 1 × 10-11 M, respectively. We further demonstrate that aptamer-functionalized microflowers can easily capture S. aureus in tap water and significantly enhance their SERS signal. Moreover, the microflowers can be easily recycled because of the intrinsic magnetism of the Fe3O4 cores, which indicate a new route in eliminating the "single-use" problem of traditional SERS substrates. These advantages make the microflowers powerful SERS probes for chemical and biological analyses.
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Affiliation(s)
- Chongwen Wang
- Beijing Institute of Radiation Medicine, Beijing 100850, PR China. and College of Life Sciences & Bio-Engineering, Beijing University of Technology, Beijing 100124, PR China
| | - Junfeng Wang
- Beijing Institute of Radiation Medicine, Beijing 100850, PR China. and College of Mechatronics and Automation, National University of Defense Technology, Changsha, Hunan 410073, PR China
| | - Ping Li
- Beijing Institute of Radiation Medicine, Beijing 100850, PR China.
| | - Zhen Rong
- Beijing Institute of Radiation Medicine, Beijing 100850, PR China.
| | - Xiaofei Jia
- Beijing Institute of Radiation Medicine, Beijing 100850, PR China. and College of Life Sciences & Bio-Engineering, Beijing University of Technology, Beijing 100124, PR China
| | - Qiuling Ma
- Beijing Institute of Radiation Medicine, Beijing 100850, PR China.
| | - Rui Xiao
- Beijing Institute of Radiation Medicine, Beijing 100850, PR China.
| | - Shengqi Wang
- Beijing Institute of Radiation Medicine, Beijing 100850, PR China. and College of Life Sciences & Bio-Engineering, Beijing University of Technology, Beijing 100124, PR China
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41
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Kim HS, Seo YS, Kim K, Han JW, Park Y, Cho S. Concentration Effect of Reducing Agents on Green Synthesis of Gold Nanoparticles: Size, Morphology, and Growth Mechanism. NANOSCALE RESEARCH LETTERS 2016; 11:230. [PMID: 27119158 PMCID: PMC4848276 DOI: 10.1186/s11671-016-1393-x] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2015] [Accepted: 04/04/2016] [Indexed: 05/29/2023]
Abstract
Under various concentration conditions of reducing agents during the green synthesis of gold nanoparticles (AuNPs), we obtain the various geometry (morphology and size) of AuNPs that play a crucial role in their catalytic properties. Through both theoretical and experimental approaches, we studied the relationship between the concentration of reducing agent (caffeic acid) and the geometry of AuNPs. As the concentration of caffeic acid increases, the sizes of AuNPs were decreased due to the adsorption and stabilizing effect of oxidized caffeic acids (OXCAs). Thus, it turns out that optimal concentration exists for the desired geometry of AuNPs. Furthermore, we investigated the growth mechanism for the green synthesis of AuNPs. As the caffeic acid is added and adsorbed on the surface of AuNPs, the aggregation mechanism and surface free energy are changed and consequently resulted in the AuNPs of various geometry.
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Affiliation(s)
- Hyun-Seok Kim
- National Creative Research Initiatives (NCRI) Center for Isogeometric Optimal Design, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 151-744, Republic of Korea
| | - Yu Seon Seo
- College of Pharmacy, Inje University, 197 Inje-ro, Gimhae, 621-749, Republic of Korea
| | - Kyeounghak Kim
- Department of Chemical Engineering, University of Seoul, Seoul, 130-743, Republic of Korea
| | - Jeong Woo Han
- Department of Chemical Engineering, University of Seoul, Seoul, 130-743, Republic of Korea
| | - Youmie Park
- College of Pharmacy, Inje University, 197 Inje-ro, Gimhae, 621-749, Republic of Korea
| | - Seonho Cho
- National Creative Research Initiatives (NCRI) Center for Isogeometric Optimal Design, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 151-744, Republic of Korea.
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42
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Chen JY, Yang CY, Chen PY. Synthesis of hierarchically porous structured CaCO3 and TiO2 replicas by sol-gel method using lotus root as template. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 67:85-97. [PMID: 27287102 DOI: 10.1016/j.msec.2016.04.092] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2016] [Revised: 04/21/2016] [Accepted: 04/27/2016] [Indexed: 11/18/2022]
Abstract
Intensive attention has been put in mimicking the morphologies in nature owing to their uniqueness, complexity, and diversity. One of the effective approaches to mimic bio-morphologies is through biotemplating - the technique of using biological structures as template to reproduce intricate structure in other forms of materials. This work presents a facile sol-gel technique that can be widely used to convert various carbon-rich bio-structures into different materials. Lotus root, a biomorphic template with high porosity at varying length scales, was selected as the example to demonstrate this approach. The experiment was conducted by infiltrating precursors - titanium (IV) n-butoxide (TnBT) and acetic acid calcium solution - into the lotus root template under vacuum system, followed by calcination. After the treatment, the replicas were calcite CaCO3 and anatase TiO2. In both CaCO3 and TiO2 replicas, the intact structure of the template was preserved. In spite of the overall similarity of the CaCO3 and TiO2 lotus root replicas, some respective differences were found. TiO2 replica was covered with nanowire bundles of 100-200nm in diameter, formed by preferable crystallization of particles, while CaCO3 replica presented the gradient-distributed pores of 10-100μm, which greatly resembled the microstructure of lotus root template. In the BET result, TiO2 replica was mesoporous structure with pores centralizing in 3-4nm. On the other hand, CaCO3 replica had pores in a wider distribution ranging from micro to macro scale. In addition, the surface area was greatly enhanced in both cases. The synthesized materials with hierarchical biomorphic structures may have great potential for purification applications due to their large specific surface area, photocatalytic property, and high adsorption rate.
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Affiliation(s)
- Jui-Yi Chen
- Material Science and Engineering Department, National Tsing-Hua University, No. 101, Section 2, Kuang-Fu Road, Hsinchu30013, Taiwan ROC
| | - Ching-Yu Yang
- Material Science and Engineering Department, National Tsing-Hua University, No. 101, Section 2, Kuang-Fu Road, Hsinchu30013, Taiwan ROC
| | - Po-Yu Chen
- Material Science and Engineering Department, National Tsing-Hua University, No. 101, Section 2, Kuang-Fu Road, Hsinchu30013, Taiwan ROC.
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43
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Sequential determination of trace 4-aminoazobenzene in multiple textiles based on nanoarrayed functionalized polystyrene substrate by surface enhanced Raman spectroscopy. Talanta 2016; 154:346-53. [DOI: 10.1016/j.talanta.2016.03.068] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Revised: 03/13/2016] [Accepted: 03/19/2016] [Indexed: 01/15/2023]
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44
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Choi S, Moon Y, Yoo H. Finely tunable fabrication and catalytic activity of gold multipod nanoparticles. J Colloid Interface Sci 2016; 469:269-276. [DOI: 10.1016/j.jcis.2016.02.019] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Revised: 02/04/2016] [Accepted: 02/05/2016] [Indexed: 10/22/2022]
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45
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Zhao B, Li D, Long Y, Yang G, Tung CH, Song K. Modification of colloidal particles by unidirectional silica deposition for urchin-like morphologies. RSC Adv 2016. [DOI: 10.1039/c6ra01693f] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Silica rods were grown onto the surface of various colloidal particles, resulting in urchin-like morphologies.
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Affiliation(s)
- Bin Zhao
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Photochemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Dongzhi Li
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Photochemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Yue Long
- Laboratory of Bio-Inspired Smart Interface Sciences
- Technical Institute of Physics and Chemistry
- Chinese Academy of Science
- Beijing 100190
- China
| | - Guoqiang Yang
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Photochemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Chen-Ho Tung
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Kai Song
- Laboratory of Bio-Inspired Smart Interface Sciences
- Technical Institute of Physics and Chemistry
- Chinese Academy of Science
- Beijing 100190
- China
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46
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Wang Z, Wu H, Shi H, Wang M, Huang C, Jia N. A novel multifunctional biomimetic Au@BSA nanocarrier as a potential siRNA theranostic nanoplatform. J Mater Chem B 2016; 4:2519-2526. [DOI: 10.1039/c5tb02326b] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
A novel siRNA nanocarrier based on biomimetic Au@BSA nanoflowers is fabricated which could serve as a potential theranostic nanoplatform.
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Affiliation(s)
- Zhiming Wang
- The Education Ministry Key Laboratory of Resource Chemistry
- Shanghai Key Laboratory of Rare Earth Functional Materials and Shanghai Municipal Education Committee Key Laboratory of Molecular Imaging Probes and Sensors
- Department of Chemistry
- Shanghai Normal University
- Shanghai 200234
| | - Hui Wu
- The Education Ministry Key Laboratory of Resource Chemistry
- Shanghai Key Laboratory of Rare Earth Functional Materials and Shanghai Municipal Education Committee Key Laboratory of Molecular Imaging Probes and Sensors
- Department of Chemistry
- Shanghai Normal University
- Shanghai 200234
| | - Hongyuan Shi
- Department of Radiology
- Ruijin Hospital
- School of Medicine
- Shanghai Jiaotong University
- Shanghai 200025
| | - Mingliang Wang
- Department of Radiology
- Zhongshan Hospital
- School of Medicine
- Fudan University
- Shanghai 200032
| | - Chusen Huang
- The Education Ministry Key Laboratory of Resource Chemistry
- Shanghai Key Laboratory of Rare Earth Functional Materials and Shanghai Municipal Education Committee Key Laboratory of Molecular Imaging Probes and Sensors
- Department of Chemistry
- Shanghai Normal University
- Shanghai 200234
| | - Nengqin Jia
- The Education Ministry Key Laboratory of Resource Chemistry
- Shanghai Key Laboratory of Rare Earth Functional Materials and Shanghai Municipal Education Committee Key Laboratory of Molecular Imaging Probes and Sensors
- Department of Chemistry
- Shanghai Normal University
- Shanghai 200234
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47
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Kodiha M, Mahboubi H, Maysinger D, Stochaj U. Gold Nanoparticles Impinge on Nucleoli and the Stress Response in MCF7 Breast Cancer Cells. Nanobiomedicine (Rij) 2016; 3:3. [PMID: 29942378 PMCID: PMC5998265 DOI: 10.5772/62337] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Accepted: 02/01/2016] [Indexed: 01/15/2023] Open
Abstract
Cancer cells can take up gold nanoparticles of different morphologies. These particles interact with the plasma membrane and often travel to intracellular organelles. Among organelles, the nucleus is especially susceptible to the damage that is inflicted by gold nanoparticles. Located inside the nucleus, nucleoli are specialized compartments that transcribe ribosomal RNA genes, produce ribosomes and function as cellular stress sensors. Nucleoli are particularly prone to gold nanoparticle-induced injury. As such, small spherical gold nanoparticles and gold nanoflowers interfere with the transcription of ribosomal DNA. However, the underlying mechanisms are not fully understood. In this study, we examined the effects of gold nanoparticles on nucleolar proteins that are critical to ribosome biogenesis and other cellular functions. We show that B23/nucleophosmin, a nucleolar protein that is tightly linked to cancer, is significantly affected by gold nanoparticles. Furthermore, gold nanoparticles impinge on the cellular stress response, as they reduce the abundance of the molecular chaperone hsp70 and O-GlcNAc modified proteins in the nucleus and nucleoli. Together, our studies set the stage for the development of nanomedicines that target the nucleolus to eradicate proliferating cancer cells.
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Affiliation(s)
- Mohamed Kodiha
- Department of Physiology, McGill University, Montreal, QC, Canada
| | - Hicham Mahboubi
- Department of Physiology, McGill University, Montreal, QC, Canada
| | - Dusica Maysinger
- Department of Pharmacology & Therapeutics, McGill University, Montreal, QC, Canada
| | - Ursula Stochaj
- Department of Physiology, McGill University, Montreal, QC, Canada
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48
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Zhang M, Zhao A, Wang D, Sun H. Hierarchically assembled NiCo@SiO2@Ag magnetic core-shell microspheres as highly efficient and recyclable 3D SERS substrates. Analyst 2015; 140:440-8. [PMID: 25422829 DOI: 10.1039/c4an01275e] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The hierarchically nanosheet-assembled NiCo@SiO2@Ag (NSA) core-shell microspheres have been synthesized by a layer-by-layer procedure at ambient temperature. The mean particle size of NSA microspheres is about 1.7 μm, which is made up of some nanosheets with an average thickness of ∼20 nm. The outer silver shell surface structures can be controlled well by adjusting the concentration of Ag(+) ions and the reaction times. The obtained NSA 3D micro/nanostructures show a structure enhanced SERS performance, which can be attributed to the special nanoscale configuration with wedge-shaped surface architecture. We find that NSA microspheres with nanosheet-assembled shell structure exhibit the highest enhancement efficiency and high SERS sensitivity to p-ATP and MBA molecules. We show that the detection limits for both p-ATP and MBA of the optimized NSA microsphere substrates can approach 10(-7) M. And the relative standard deviation of the Raman peak maximum is ∼13%, which indicates good uniformity of the substrate. In addition, the magnetic NSA microspheres with high saturation magnetization show a quick magnetic response, good recoverability and recyclability. Therefore, such NSA microspheres may have great practical potential applications in rapid and reproducible trace detection of chemical, biological and environment pollutants with a simple portable Raman instrument.
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Affiliation(s)
- Maofeng Zhang
- Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei, 230031, P. R. China.
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49
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Blanch AJ, Döblinger M, Rodríguez-Fernández J. Simple and Rapid High-Yield Synthesis and Size Sorting of Multibranched Hollow Gold Nanoparticles with Highly Tunable NIR Plasmon Resonances. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2015; 11:4550-4559. [PMID: 26068971 DOI: 10.1002/smll.201500095] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2015] [Revised: 03/18/2015] [Indexed: 06/04/2023]
Abstract
Branched gold nanoparticles with sharp tips are considered excellent candidates for sensing and field enhancement applications. Here, a rapid and simple synthesis strategy is presented that generates highly branched gold nanoparticles with hollow cores and a ca.100% yield through a simple one-pot seedless reaction at room temperature in the presence of Triton X-100. It is shown that multibranched hollow gold nanoparticles of tunable dimensions, branch density and branch length can be obtained by adjusting the concentrations of the reactants. Insights into the formation mechanism point toward an aggregative type of growth involving hollow core formation first, and branching thereafter. The pronounced near-infrared (NIR) plasmon band of the nanoparticles is due to the combined contribution from hollowness and branching, and can be tuned over a wide range (≈700-2000 nm). It is also demonstrated that the high environmental sensitivity of colloidal dispersions based on multibranched hollow gold nanoparticles can be boosted even further by separating the nanoparticles into fractions of given sizes and improved monodispersity by means of a glycerol density gradient. The possibility to obtain highly monodisperse multibranched hollow gold nanoparticles with predictable dimensions (50-300 nm) and branching and, therefore, tailored NIR plasmonic properties, highlights their potential for theranostic applications.
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Affiliation(s)
- Adam J Blanch
- Photonics and Optoelectronics Group Department of Physics and CeNS, Ludwig-Maximilians-Universität München, Amalienstr. 54, 80799, Munich, Germany
- Nanosystems Initiative Munich (NIM), Schellingstr. 4, 80799, Munich, Germany
| | - Markus Döblinger
- Nanosystems Initiative Munich (NIM), Schellingstr. 4, 80799, Munich, Germany
- Department of Chemistry and CeNS, Ludwig-Maximilians-Universität München Butenand, str. 11, 81377, Munich, Germany
| | - Jessica Rodríguez-Fernández
- Photonics and Optoelectronics Group Department of Physics and CeNS, Ludwig-Maximilians-Universität München, Amalienstr. 54, 80799, Munich, Germany
- Nanosystems Initiative Munich (NIM), Schellingstr. 4, 80799, Munich, Germany
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50
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Linear light-scattering of gold nanostars for versatile biosensing of nucleic acids and proteins using exonuclease III as biocatalyst to signal amplification. Biosens Bioelectron 2015; 71:427-433. [DOI: 10.1016/j.bios.2015.04.070] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Revised: 04/07/2015] [Accepted: 04/21/2015] [Indexed: 11/22/2022]
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