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Weingarten P, Thomas SR, Luiza de Andrade Querino A, Halama K, Kränzlein M, Casini A, Rieger B. A graft-to strategy of poly(vinylphosphonates) on dopazide-coated gold nanoparticles using in situ catalyst activation. RSC Adv 2024; 14:8145-8149. [PMID: 38464693 PMCID: PMC10921843 DOI: 10.1039/d4ra01116c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Accepted: 03/04/2024] [Indexed: 03/12/2024] Open
Abstract
A modular synthetic pathway for poly(diethyl vinylphosphonates) grafting-to gold nanoparticles is presented. Utilising an azide-dopamine derivative as nanoparticle coating agent, alkyne-azide click conditions were used to covalently tether the polymer to gold nanoparticles leading to stable and well distributed colloids for different applications.
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Affiliation(s)
- Philipp Weingarten
- WACKER-Chair of Macromolecular Chemistry, Catalysis Research Center, School of Natural Sciences, Department of Chemistry, Technical University of Munich Lichtenbergstraße 4 D-85748 Garching b. München Germany
| | - Sophie R Thomas
- Chair of Medicinal and Bioinorganic Chemistry, Department of Chemistry, School of Natural Sciences, Technical University of Munich Lichtenbergstraße 4 D-85748 Garching b. München Germany
| | - Ana Luiza de Andrade Querino
- Chair of Medicinal and Bioinorganic Chemistry, Department of Chemistry, School of Natural Sciences, Technical University of Munich Lichtenbergstraße 4 D-85748 Garching b. München Germany
- Department of Chemistry, Universidade Federal de Minas Gerais Belo Horizonte MG 31270-901 Brazil
| | - Kerstin Halama
- WACKER-Chair of Macromolecular Chemistry, Catalysis Research Center, School of Natural Sciences, Department of Chemistry, Technical University of Munich Lichtenbergstraße 4 D-85748 Garching b. München Germany
| | - Moritz Kränzlein
- WACKER-Chair of Macromolecular Chemistry, Catalysis Research Center, School of Natural Sciences, Department of Chemistry, Technical University of Munich Lichtenbergstraße 4 D-85748 Garching b. München Germany
| | - Angela Casini
- Chair of Medicinal and Bioinorganic Chemistry, Department of Chemistry, School of Natural Sciences, Technical University of Munich Lichtenbergstraße 4 D-85748 Garching b. München Germany
| | - Bernhard Rieger
- WACKER-Chair of Macromolecular Chemistry, Catalysis Research Center, School of Natural Sciences, Department of Chemistry, Technical University of Munich Lichtenbergstraße 4 D-85748 Garching b. München Germany
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2
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Zohra T, Saeed F, Ikram A, Khan T, Alam S, Adil M, Gul A, Almawash S, Ayaz M. Nanomedicine as a potential novel therapeutic approach against the dengue virus. Nanomedicine (Lond) 2023; 18:1567-1584. [PMID: 37753727 DOI: 10.2217/nnm-2022-0217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/28/2023] Open
Abstract
Dengue is an arbovirus infection which is transmitted by Aedes mosquitoes. Its prompt detection and effective treatment is a global health challenge. Various nanoparticle-based vaccines have been formulated to present immunogen (antigens) to instigate an immune response or prevent virus spread, but no specific treatment has been devised. This review explores the role of nanomedicine-based therapeutic agents against dengue virus, taking into consideration the applicable dengue virus assays that are sensitive, specific, have a short turnaround time and are inexpensive. Various kinds of metallic, polymeric and lipid nanoparticles with safe and effective profiles present an alternative strategy that could provide a better remedy for eradicating the dengue virus.
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Affiliation(s)
- Tanzeel Zohra
- Public Health Laboratories Division, National Institute of Health, Islamabad, 45500, Pakistan
| | - Faryal Saeed
- Department of Biotechnology, Quaid-i-Azam University, Islamabad, 45320, Pakistan
| | - Aamer Ikram
- Public Health Laboratories Division, National Institute of Health, Islamabad, 45500, Pakistan
| | - Tariq Khan
- Department of Biotechnology, University of Malakand, University of Malakand, Chakdara, 18800 Dir (L), KP, Pakistan
| | - Siyab Alam
- Department of Biotechnology, University of Malakand, University of Malakand, Chakdara, 18800 Dir (L), KP, Pakistan
| | - Muhammad Adil
- Department of Biotechnology, University of Malakand, University of Malakand, Chakdara, 18800 Dir (L), KP, Pakistan
| | - Ayesha Gul
- Department of Chemical Engineering, Polytechnique Montreal, H3T IJ4, Canada
| | - Saud Almawash
- Department of Pharmaceutical Sciences, College of Pharmacy, Shaqra University, Shaqra, 11961, Saudi Arabia
| | - Muhammad Ayaz
- Department of Pharmacy, Faculty of Biological Sciences, University of Malakand, Chakdara, 18800 Dir (L), KP, Pakistan
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3
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Paz MM, Peinador Veiga A, Regueira Formal análisis T, Vázquez Vázquez C, Arturo López Quintela M. Facile Generation of Surface Diversity in Gold Nanoparticles. J Colloid Interface Sci 2023; 641:719-728. [PMID: 36972622 DOI: 10.1016/j.jcis.2023.03.043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 02/16/2023] [Accepted: 03/06/2023] [Indexed: 03/11/2023]
Abstract
Surface chemistry is a key determinant of the physico-chemical and biological properties of gold nanoparticles (AuNPs). The introduction of chemical diversity in the surface of AuNPs is usually accomplished by place-exchange reactions using incoming ligands containing the desired terminal functional groups. As an alternative approach, we present here a simple, practical methodology to modify the surface of gold nanoparticles that allows the preparation of AuNPs stabilized with polyethyleneglycol (PEG) ligands with different surface chemistries using AuNPs stabilized with thiol-PEG-amino ligands as starting material. The surface modification reaction involves the acylation of the terminal amino groups in the ligand with an organic acid anhydride in an aqueous buffer. In addition to a full surface modification, this method also allows the synthesis of AuNPs with tailored mixed surfaces, containing two or more different functional groups, each of them at the desired extent. The ease of the experimental conditions for the reaction, purification, and for determining the level of surface modification makes this strategy an attractive alternative to current methods for the preparation of AuNPs with diverse surface chemistry.
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4
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Mellor RD, Uchegbu IF. Ultrasmall-in-Nano: Why Size Matters. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:2476. [PMID: 35889699 PMCID: PMC9317835 DOI: 10.3390/nano12142476] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 07/12/2022] [Accepted: 07/13/2022] [Indexed: 01/06/2023]
Abstract
Gold nanoparticles (AuNPs) are continuing to gain popularity in the field of nanotechnology. New methods are continuously being developed to tune the particles' physicochemical properties, resulting in control over their biological fate and applicability to in vivo diagnostics and therapy. This review focuses on the effects of varying particle size on optical properties, opsonization, cellular internalization, renal clearance, biodistribution, tumor accumulation, and toxicity. We review the common methods of synthesizing ultrasmall AuNPs, as well as the emerging constructs termed ultrasmall-in-nano-an approach which promises to provide the desirable properties from both ends of the AuNP size range. We review the various applications and outcomes of ultrasmall-in-nano constructs in vitro and in vivo.
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Affiliation(s)
| | - Ijeoma F. Uchegbu
- School of Pharmacy, University College London (UCL), 29–39 Brunswick Square, London WC1N 1AX, UK;
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5
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Advances in Colorimetric Assay Based on AuNPs Modified by Proteins and Nucleic Acid Aptamers. CHEMOSENSORS 2021. [DOI: 10.3390/chemosensors9100281] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
This review is focused on the biosensing assay based on AuNPs (AuNPs) modified by proteins, peptides and nucleic acid aptamers. The unique physical properties of AuNPs allow their modification by proteins, peptides or nucleic acid aptamers by chemisorption as well as other methods including physical adsorption and covalent immobilization using carbodiimide chemistry or based on strong binding of biotinylated receptors on neutravidin, streptavidin or avidin. The methods of AuNPs preparation, their chemical modification and application in several biosensing assays are presented with focus on application of nucleic acid aptamers for colorimetry assay for determination of antibiotics and bacteria in food samples.
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6
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Ielo I, Rando G, Giacobello F, Sfameni S, Castellano A, Galletta M, Drommi D, Rosace G, Plutino MR. Synthesis, Chemical-Physical Characterization, and Biomedical Applications of Functional Gold Nanoparticles: A Review. Molecules 2021; 26:5823. [PMID: 34641367 PMCID: PMC8510367 DOI: 10.3390/molecules26195823] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 09/17/2021] [Accepted: 09/20/2021] [Indexed: 12/12/2022] Open
Abstract
Relevant properties of gold nanoparticles, such as stability and biocompatibility, together with their peculiar optical and electronic behavior, make them excellent candidates for medical and biological applications. This review describes the different approaches to the synthesis, surface modification, and characterization of gold nanoparticles (AuNPs) related to increasing their stability and available features useful for employment as drug delivery systems or in hyperthermia and photothermal therapy. The synthetic methods reported span from the well-known Turkevich synthesis, reduction with NaBH4 with or without citrate, seeding growth, ascorbic acid-based, green synthesis, and Brust-Schiffrin methods. Furthermore, the nanosized functionalization of the AuNP surface brought about the formation of self-assembled monolayers through the employment of polymer coatings as capping agents covalently bonded to the nanoparticles. The most common chemical-physical characterization techniques to determine the size, shape and surface coverage of AuNPs are described underlining the structure-activity correlation in the frame of their applications in the biomedical and biotechnology sectors.
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Affiliation(s)
- Ileana Ielo
- Institute for the Study of Nanostructured Materials, ISMN—CNR, Palermo, c/o Department of ChiBioFarAm, University of Messina, Viale F. Stagno d’Alcontres 31, Vill. S. Agata, 98166 Messina, Italy; (I.I.); (F.G.); (S.S.); (A.C.)
| | - Giulia Rando
- Department of Chemical, Biological, Pharmaceutical and Analytical Sciences (ChiBioFarAm), University of Messina, Viale F. Stagno d’Alcontres 31, Vill. S. Agata, 98166 Messina, Italy; (G.R.); (M.G.); (D.D.)
| | - Fausta Giacobello
- Institute for the Study of Nanostructured Materials, ISMN—CNR, Palermo, c/o Department of ChiBioFarAm, University of Messina, Viale F. Stagno d’Alcontres 31, Vill. S. Agata, 98166 Messina, Italy; (I.I.); (F.G.); (S.S.); (A.C.)
| | - Silvia Sfameni
- Institute for the Study of Nanostructured Materials, ISMN—CNR, Palermo, c/o Department of ChiBioFarAm, University of Messina, Viale F. Stagno d’Alcontres 31, Vill. S. Agata, 98166 Messina, Italy; (I.I.); (F.G.); (S.S.); (A.C.)
- Department of Engineering, University of Messina, Contrada di Dio, S. Agata, 98166 Messina, Italy
| | - Angela Castellano
- Institute for the Study of Nanostructured Materials, ISMN—CNR, Palermo, c/o Department of ChiBioFarAm, University of Messina, Viale F. Stagno d’Alcontres 31, Vill. S. Agata, 98166 Messina, Italy; (I.I.); (F.G.); (S.S.); (A.C.)
| | - Maurilio Galletta
- Department of Chemical, Biological, Pharmaceutical and Analytical Sciences (ChiBioFarAm), University of Messina, Viale F. Stagno d’Alcontres 31, Vill. S. Agata, 98166 Messina, Italy; (G.R.); (M.G.); (D.D.)
| | - Dario Drommi
- Department of Chemical, Biological, Pharmaceutical and Analytical Sciences (ChiBioFarAm), University of Messina, Viale F. Stagno d’Alcontres 31, Vill. S. Agata, 98166 Messina, Italy; (G.R.); (M.G.); (D.D.)
| | - Giuseppe Rosace
- Department of Engineering and Applied Sciences, University of Bergamo, Viale Marconi 5, 24044 Dalmine, Italy
| | - Maria Rosaria Plutino
- Institute for the Study of Nanostructured Materials, ISMN—CNR, Palermo, c/o Department of ChiBioFarAm, University of Messina, Viale F. Stagno d’Alcontres 31, Vill. S. Agata, 98166 Messina, Italy; (I.I.); (F.G.); (S.S.); (A.C.)
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7
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Chow E, Raguse B, Della Gaspera E, Barrow SJ, Hong J, Hubble LJ, Chai R, Cooper JS, Sosa Pintos A. Flow-controlled synthesis of gold nanoparticles in a biphasic system with inline liquid–liquid separation. REACT CHEM ENG 2020. [DOI: 10.1039/c9re00403c] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
4-Dimethylaminopyridine-stabilised gold nanoparticles are synthesised in a biphasic flow reactor system using organic/aqueous membrane separators and gas-permeable tubing.
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8
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Lomelí-Rosales DA, Zamudio-Ojeda A, Cortes-Llamas SA, Velázquez-Juárez G. One-step synthesis of gold and silver non-spherical nanoparticles mediated by Eosin Methylene Blue agar. Sci Rep 2019; 9:19327. [PMID: 31852938 PMCID: PMC6920435 DOI: 10.1038/s41598-019-55744-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 11/30/2019] [Indexed: 12/12/2022] Open
Abstract
Nowadays, there are several approaches reported to accomplish the green synthesis of metal nanoparticles by using bacterial and fungi supernatants or by-products generated by these microorganisms. Therefore, agars as solely reductive regents have started to be used in order to obtain metal nanoparticles. This paper shows the results of the synthesis of gold and silver nanoparticles with different morphology, mainly triangular and truncated triangular, using Eosin Methylene Blue (EMB) agar as reducing agent. To control the reaction process, the necessary activation energy for the reducer was provided by three different techniques: microwave radiation, using a domestic microwave oven, ultraviolet radiation, and heating on a conventional plate. The evolution of the reduction process and stability of the samples was performed by ultraviolet visible spectroscopy. Morphology was carefully analyzed using high-resolution transmission electron microscopy (HRTEM) and Transmission electron microscopy (TEM). A one step synthesis for gold and silver nanoparticles was optimized with an eco-friendly and economic process.
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Affiliation(s)
- Diego Alberto Lomelí-Rosales
- Departamento de Química, Centro Universitario de Ciencias Exactas e Ingenierías, Universidad de Guadalajara. Departamento de Química. Blvd. Marcelino García Barragán #1421, C.P, 44430, Guadalajara, Jalisco, México
| | - Adalberto Zamudio-Ojeda
- Departamento de Física, Centro Universitario de Ciencias Exactas e Ingenierías, Universidad de Guadalajara. Departamento de Química. Blvd. Marcelino García Barragán #1421, C.P, 44430, Guadalajara, Jalisco, México
| | - Sara Angélica Cortes-Llamas
- Departamento de Química, Centro Universitario de Ciencias Exactas e Ingenierías, Universidad de Guadalajara. Departamento de Química. Blvd. Marcelino García Barragán #1421, C.P, 44430, Guadalajara, Jalisco, México
| | - Gilberto Velázquez-Juárez
- Departamento de Química, Centro Universitario de Ciencias Exactas e Ingenierías, Universidad de Guadalajara. Departamento de Química. Blvd. Marcelino García Barragán #1421, C.P, 44430, Guadalajara, Jalisco, México.
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9
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Kim MJ, Brown M, Wiley BJ. Electrochemical investigations of metal nanostructure growth with single crystals. NANOSCALE 2019; 11:21709-21723. [PMID: 31714552 DOI: 10.1039/c9nr05782j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Control over the nanoscopic structure of a material allows one to tune its properties for a wide variety of applications. Colloidal synthesis has become a convenient way to produce anisotropic metal nanostructures with a desired set of properties, but in most syntheses, the facet-selective surface chemistry causing anisotropic growth is not well-understood. This review highlights the recent use of electrochemical methods and single-crystal electrodes to investigate the roles of organic and inorganic additives in modulating the rate of atomic addition to different crystal facets. Differential capacitance and chronocoulometric techniques can be used to extract thermodynamic data on how additives selectively adsorb, while mixed potential theory can be used to observe the effect of additives on the rate of atomic addition to a specific facet. Results to date indicate that these experimental methods can provide new insights into the role capping agents and halides play in controlling anisotropic growth.
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Affiliation(s)
- Myung Jun Kim
- Department of Chemistry, Duke University, 124 Science Drive, Box 90354, Durham, North Carolina 27708, USA.
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10
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Oliveira JP, Keijok WJ, Prado AR, Guimarães MCC. Tracking the effect of binder length on colloidal stability and bioconjugation of gold nanoparticles. APPLIED NANOSCIENCE 2018. [DOI: 10.1007/s13204-018-0843-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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11
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Yang Y, Serrano LA, Guldin S. A Versatile AuNP Synthetic Platform for Decoupled Control of Size and Surface Composition. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:6820-6826. [PMID: 29768005 DOI: 10.1021/acs.langmuir.8b00353] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
While a plethora of protocols exist for the synthesis of sub-10-nm gold nanoparticles (AuNPs), independent control over the size and surface composition remains restricted. This poses a particular challenge for systematic studies of AuNP structure-function relationships and the optimization of crucial design parameters. To this end, we report on a modular two-step approach based on the synthesis of AuNPs in oleylamine (OAm) followed by subsequent functionalization with thiol ligands and mixtures thereof. The synthesis of OAm-capped AuNPs enables fine-tuning of the core size in the range of 2-7 nm by varying the reaction temperature. The subsequent thiol-for-OAm ligand exchange allows a reliable generation of thiol-capped AuNPs with target surface functionality. The compatibility of this approach with a vast library of thiol ligands provides detailed control of the mixed ligand composition and solubility in a wide range of solvents ranging from water to hexane. This decoupled control over the AuNP core and ligand shell provides a powerful toolbox for the methodical screening of optimal design parameters and facile preparation of AuNPs with target properties.
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Affiliation(s)
- Ye Yang
- Department of Chemical Engineering , University College London , Torrington Place , London WC1E 7JE , U.K
| | - Luis A Serrano
- Department of Chemical Engineering , University College London , Torrington Place , London WC1E 7JE , U.K
| | - Stefan Guldin
- Department of Chemical Engineering , University College London , Torrington Place , London WC1E 7JE , U.K
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12
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LI HJ, LIU Z, DENG XR, LIN J, MA PA, TENG B. Preparation and in Vitro Anti-Laryngeal Cancer Evaluation of Protopanaxadiol-Loaded Hollow Gold Nanoparticles. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2018. [DOI: 10.1016/s1872-2040(18)61087-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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13
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Tirotta I, Calloni A, Pigliacelli C, Brambilla A, Bussetti G, Duò L, Metrangolo P, Baldelli Bombelli F. Chemical characterization of fluorinated/hydrogenated mixed monolayers grafted on gold nanoparticles. J Fluor Chem 2018. [DOI: 10.1016/j.jfluchem.2017.12.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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14
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Investigations of Capping Agent Adsorption for Metal Nanoparticle Stabilization and the Formation of Anisotropic Gold Nanocrystals. ACTA ACUST UNITED AC 2017. [DOI: 10.1002/9783527340934.ch5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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15
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Lomelí-Rosales D, Rangel-Salas II, Zamudio-Ojeda A, Carbajal-Arízaga GG, Godoy-Alcántar C, Manríquez-González R, Alvarado-Rodríguez JG, Martínez-Otero D, Cortes-Llamas SA. Chiral Imidazolium-Functionalized Au Nanoparticles: Reversible Aggregation and Molecular Recognition. ACS OMEGA 2016; 1:876-885. [PMID: 31457170 PMCID: PMC6640785 DOI: 10.1021/acsomega.6b00141] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Accepted: 10/25/2016] [Indexed: 06/10/2023]
Abstract
Gold nanoparticles (AuNPs) stabilized by imidazolium salts derived from amino acids [glycine (1), rac-alanine (2), l-phenylalanine (3), and rac-methionine (4)] were prepared. The AuNPs were stabilized the most by 4, which kept the particles dispersed in water for months at pH > 5.5. These AuNPs exhibited a well-defined absorption band at 517 nm and had an average particle size of 11.21 ± 0.07 nm. The 4-AuNPs were reversibly aggregated by controlling the pH of the solution. Chiral R,R-4-AuNPs and S,S-4-AuNPs were synthesized, and the chiral environment on the nanoparticle surface was confirmed using circular dichroism; these nanoparticles exhibited a molecular recognition of chiral substrates. Furthermore, they showed potential for separating racemic mixtures when supported on a layered double hydroxide.
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Affiliation(s)
- Diego
Alberto Lomelí-Rosales
- Departamento de Química,
Centro Universitario de Ciencias
Exactas e Ingenierías and Departamento de Física, Centro Universitario
de Ciencias Exactas e Ingenierías, Universidad de Guadalajara, Blvd. Marcelino García Barragán #1421, esq. Olímpica, C.P. 44430 Guadalajara, Jalisco, Mexico
| | - Irma Idalia Rangel-Salas
- Departamento de Química,
Centro Universitario de Ciencias
Exactas e Ingenierías and Departamento de Física, Centro Universitario
de Ciencias Exactas e Ingenierías, Universidad de Guadalajara, Blvd. Marcelino García Barragán #1421, esq. Olímpica, C.P. 44430 Guadalajara, Jalisco, Mexico
| | - Adalberto Zamudio-Ojeda
- Departamento de Química,
Centro Universitario de Ciencias
Exactas e Ingenierías and Departamento de Física, Centro Universitario
de Ciencias Exactas e Ingenierías, Universidad de Guadalajara, Blvd. Marcelino García Barragán #1421, esq. Olímpica, C.P. 44430 Guadalajara, Jalisco, Mexico
| | - Gregorio Guadalupe Carbajal-Arízaga
- Departamento de Química,
Centro Universitario de Ciencias
Exactas e Ingenierías and Departamento de Física, Centro Universitario
de Ciencias Exactas e Ingenierías, Universidad de Guadalajara, Blvd. Marcelino García Barragán #1421, esq. Olímpica, C.P. 44430 Guadalajara, Jalisco, Mexico
| | - Carolina Godoy-Alcántar
- Centro
de Investigaciones Químicas, IICBA, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Col. Chamilpa, Cuernavaca, Morelos 62209, Mexico
| | - Ricardo Manríquez-González
- Departamento
de Madera, Celulosa y Papel, Centro Universitario
de Ciencias Exactas e Ingenierías, Universidad de Guadalajara, km 15.5 de la Carretera Guadalajara-Nogales, C.P. 45220 Zapopan, Jalisco, Mexico
| | - José Guadalupe Alvarado-Rodríguez
- Universidad
Autónoma del Estado de Hidalgo, Unidad Universitaria, km 4.5 Carretera Pachuca-Tulancingo, C.P. 42184 Mineral de la Reforma, Hidalgo, Mexico
| | - Diego Martínez-Otero
- Centro Conjunto
de Investigación en Química Sustentable, UAEM-UNAM, Carretera Toluca-Atlacomulco km 14.5, C.P. 50200 Toluca, Estado de
México, Mexico
| | - Sara Angélica Cortes-Llamas
- Departamento de Química,
Centro Universitario de Ciencias
Exactas e Ingenierías and Departamento de Física, Centro Universitario
de Ciencias Exactas e Ingenierías, Universidad de Guadalajara, Blvd. Marcelino García Barragán #1421, esq. Olímpica, C.P. 44430 Guadalajara, Jalisco, Mexico
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16
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Highly selective aggregation assay for visual detection of mercury ion based on competitive binding of sulfur-doped carbon nanodots to gold nanoparticles and mercury ions. Mikrochim Acta 2016. [DOI: 10.1007/s00604-016-1870-z] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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17
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Hughes ZE, Walsh TR. Non-covalent adsorption of amino acid analogues on noble-metal nanoparticles: influence of edges and vertices. Phys Chem Chem Phys 2016; 18:17525-33. [DOI: 10.1039/c6cp02323a] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
First-principles calculations on nanoscale-sized noble metal nanoparticles demonstrate that planes, edges and vertices show different noncovalent adsorption propensities depending on the adsorbate functional group.
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Affiliation(s)
- Zak E. Hughes
- Institute for Frontier Materials
- Deakin University
- Geelong VIC 3216
- Australia
| | - Tiffany R. Walsh
- Institute for Frontier Materials
- Deakin University
- Geelong VIC 3216
- Australia
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18
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Gasiorek F, Pouokam E, Diener M, Schlecht S, Wickleder MS. Effects of multivalent histamine supported on gold nanoparticles: activation of histamine receptors by derivatized histamine at subnanomolar concentrations. Org Biomol Chem 2015; 13:9984-92. [PMID: 26289108 DOI: 10.1039/c5ob01354b] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Colloidal gold nanoparticles with a functionalized ligand shell were synthesized and used as new histamine receptor agonists. Mercaptoundecanoic acid moieties were attached to the surface of the nanoparticles and derivatized with native histamine. The multivalent presentation of the immobilized ligands carried by the gold nanoparticles resulted in extremely low activation concentrations for histamine receptors on rat colonic epithelium. As a functional read-out system, chloride secretion resulting from stimulation of neuronal and epithelial histamine H1 and H2 receptors was measured in Ussing chamber experiments. These responses were strictly attributed to the histamine entities as histamine-free particles Au-MUDOLS or the monovalent ligand AcS-MUDA-HA proved to be ineffective. The vitality of the tissues used was not impaired by the nanoparticles.
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Affiliation(s)
- Friederike Gasiorek
- Institute of Inorganic and Analytical Chemistry, Justus-Liebig-University, Heinrich-Buff-Ring 58, 35392 Giessen, Germany.
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Matea CT, Mocan T, Tabaran F, Iancu C, Mocan LC. Rational design of gold nanocarrier for the delivery of JAG-1 peptide. J Nanobiotechnology 2015; 13:41. [PMID: 26077042 PMCID: PMC4469399 DOI: 10.1186/s12951-015-0100-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Accepted: 05/20/2015] [Indexed: 12/23/2022] Open
Abstract
Background Unique properties exhibited by nanoparticles makes them great candidates for applications in physics, chemistry, biology, material science and medicine. The biological applications of water-soluble gold nanoparticles range from contrast agents, delivery vehicles to therapeutics. Notch signaling is a complex network that orchestrates cell fate decisions, which involves proliferation, migration, differentiation and cell death in organisms ranging from insects to humans. Studies have showed that a correct orientation of the Jag-1 signalling protein on the substrates proves to be of great importance when promoting Jagged-1 Notch interactions, also the availability of the ligands, super cedes the importance of their concentration. Results The aim of the present study was to synthetize a Jag-1 functionalized nanocarrier, which would promote an efficient interaction between the Jag-1 peptide and the Notch receptor. To this end, two routes for gold nanoparticle-peptide assembly were investigated, and the synthetized bio-nanostructures were characterized and compared by means of UV–Vis, FT-IR, DLS and AFM techniques. Conclusions We have obtained a stable, monodisperse, hetero-functionalized GNP-PEG-JAG-1 bio-nanostructure for Notch pathway activation applications. Electronic supplementary material The online version of this article (doi:10.1186/s12951-015-0100-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Cristian T Matea
- 3rd Surgery Clinic, Department of Nanomedicine, "Iuliu Hatieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania.
| | - Teodora Mocan
- 3rd Surgery Clinic, Department of Nanomedicine, "Iuliu Hatieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania. .,Department of Physiology, "Iuliu Hatieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania.
| | - Flaviu Tabaran
- Department of Pathology, Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine, Cluj-Napoca, Romania.
| | - Cornel Iancu
- 3rd Surgery Clinic, Department of Nanomedicine, "Iuliu Hatieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania.
| | - Lucian-Constantin Mocan
- 3rd Surgery Clinic, Department of Nanomedicine, "Iuliu Hatieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania.
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Faghihi F, Hazendonk P, Montina T. Investigation into the mechanism and microstructure of reaction intermediates in the two-phase synthesis of alkanethiol-capped silver nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:3473-3481. [PMID: 25738982 DOI: 10.1021/la5047518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
To gain better control over the characteristics of the alkanethiol-capped silver nanoparticles (SNP) prepared by the two-phase method, the intermediate stage of this reaction and the structure of the precursor compound were investigated. Samples taken from the intermediate stage of the reaction were analyzed by NMR and vibrational spectroscopy both in solution and after solvent removal. The (1)H NMR chemical shifts of the complexes formed during the phase-transfer step were used to detect any structural changes that occur upon introduction of nonanethiol. Moreover, the presence of silver thiolate was monitored by comparing the FTIR and Raman spectra of silver nonanethiolate with the dried samples. Further insights into the microstructure of the intermediate compounds were sought by characterizing samples differing in molar ratios of tetraoctylammonium bromide (TOAB) to silver nitrate (AgNO3). (13)C solid-state NMR chemical shifts, (13)C relaxation times, and the DSC transitions of these samples revealed a dependence of their phase structure on the initial concentration of the reagents. At least two phases with distinct mobility and conformational ordering of their octyl chains were identified in the samples prepared with excess TOAB, which was associated with the presence of multiple anionic species. The observations regarding the composition of the phase-transfer product were further related to the quality of the resulting nanoparticles. It was demonstrated that a large excess of TOAB, which is commonly used in two-phase methods, can be avoided without compromising the size and dispersity of the silver nanoparticles produced. This modification to the synthetic procedure simplifies the purification of the product, mitigates the propensity of the nanoparticles for aggregation, and facilitates their redispersion.
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Affiliation(s)
- Farhad Faghihi
- Department of Chemistry and Biochemistry, University of Lethbridge, 4401 University Drive, Lethbridge AB T1K 3M4, Canada
| | - Paul Hazendonk
- Department of Chemistry and Biochemistry, University of Lethbridge, 4401 University Drive, Lethbridge AB T1K 3M4, Canada
| | - Tony Montina
- Department of Chemistry and Biochemistry, University of Lethbridge, 4401 University Drive, Lethbridge AB T1K 3M4, Canada
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21
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Cheng HW, Schadt MJ, Zhong CJ. Titration of gold nanoparticles in phase extraction. Analyst 2015; 140:8023-32. [DOI: 10.1039/c5an01915j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Spectrophotometric analysis of phase extraction determines the percentage of ion pairing and structural changes in the capping monolayer of gold nanoparticles.
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Affiliation(s)
- Han-Wen Cheng
- School of Chemical and Environmental Engineering
- Shanghai Institute of Technology
- Shanghai 201418
- China
- Department of Chemistry
| | - Mark J. Schadt
- Department of Chemistry
- State University of New York at Binghamton
- Binghamton
- USA
| | - Chuan-Jian Zhong
- Department of Chemistry
- State University of New York at Binghamton
- Binghamton
- USA
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22
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Wright LB, Rodger PM, Walsh TR. Structure and properties of citrate overlayers adsorbed at the aqueous Au(111) interface. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:15171-15180. [PMID: 25454252 DOI: 10.1021/la503690t] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
One of the most common means of gold nanoparticle (AuNP) biofunctionalization involves the manipulation of precursor citrate-capped AuNPs via ligand displacement. However, the molecular-level structural characteristics of the citrate overlayer adsorbed at the aqueous Au interface at neutral pH remain largely unknown. Access to atomistic-scale details of these interfaces will contribute much needed insight into how AuNPs can be manipulated and exploited in aqueous solution. Here, the structures of such citrate overlayers adsorbed at the aqueous Au(111) interface at pH 7 are predicted and characterized using atomistic molecular dynamics simulations, for a range of citrate surface densities. We find that the overlayers are disordered in the surface density range considered, and that many of their key characteristics are invariant with surface density. In particular, we predict the overlayers to have 3-D, rather than 2-D, morphologies, with the anions closest to the gold surface being oriented with their carboxylate groups pointing away from the surface. We predict both striped and island morphologies for our overlayers, depending on the citrate surface density, and in all cases we find bare patches of the gold surface are present. Our simulations suggest that both citrate-gold adsorption and citrate-counterion pairing contribute to the stability of these citrate overlayer morphologies. We also calculate the free energy of adsorption at the aqueous Au(111) interface of a single citrate molecule, and compare this with the corresponding value for a single arginine molecule. These findings enable us to predict the conditions under which ligand displacement of surface-adsorbed citrate by arginine may take place. Our findings represent the first steps toward elucidating a more elaborate, detailed atomistic-scale model relating to the biofunctionalization of citrate-capped AuNPs.
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Affiliation(s)
- Louise B Wright
- University of Warwick , Department of Chemistry and Centre for Scientific Computing, Coventry CV4 7AL, United Kingdom
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23
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Smithies O, Lawrence M, Testen A, Horne L, Wilder J, Altenburg M, Bleasdale B, Maeda N, Koklic T. Stable oligomeric clusters of gold nanoparticles: preparation, size distribution, derivatization, and physical and biological properties. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:13394-13404. [PMID: 25317930 PMCID: PMC4230385 DOI: 10.1021/la5032637] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/15/2014] [Revised: 09/27/2014] [Indexed: 06/04/2023]
Abstract
Reducing dilute aqueous HAuCl4 with NaSCN under alkaline conditions produces 2-3 nm diameter yellow nanoparticles without the addition of extraneous capping agents. We here describe two very simple methods for producing highly stable oligomeric grape-like clusters (oligoclusters) of these small nanoparticles. The oligoclusters have well-controlled diameters ranging from ∼5 to ∼30 nm, depending mainly on the number of subunits in the cluster. Our first ["delay-time"] method controls the size of the oligoclusters by varying from seconds to hours the delay time between making the HAuCl4 alkaline and adding the reducing agent, NaSCN. Our second ["add-on"] method controls size by using yellow nanoparticles as seeds onto which varying amounts of gold derived from "hydroxylated gold", Na(+)[Au(OH4-x)Clx](-), are added-on catalytically in the presence of NaSCN. Possible reaction mechanisms and a simple kinetic model fitting the data are discussed. The crude oligocluster preparations have narrow size distributions, and for most purposes do not require fractionation. The oligoclusters do not aggregate after ∼300-fold centrifugal-filter concentration, and at this high concentration are easily derivatized with a variety of thiol-containing reagents. This allows rare or expensive derivatizing reagents to be used economically. Unlike conventional glutathione-capped nanoparticles of comparable gold content, large oligoclusters derivatized with glutathione do not aggregate at high concentrations in phosphate-buffered saline (PBS) or in the circulation when injected into mice. Mice receiving them intravenously show no visible signs of distress. Their sizes can be made small enough to allow their excretion in the urine or large enough to prevent them from crossing capillary basement membranes. They are directly visible in electron micrographs without enhancement, and can model the biological fate of protein-like macromolecules with controlled sizes and charges. The ease of derivatizing the oligoclusters makes them potentially useful for presenting pharmacological agents to different tissues while controlling escape of the reagents from the circulation.
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Affiliation(s)
- Oliver Smithies
- Department of Pathology and Laboratory
Medicine, and Department of Chemistry, University of
North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Marlon Lawrence
- Department of Pathology and Laboratory
Medicine, and Department of Chemistry, University of
North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Anze Testen
- Condensed
Matter Physics Department, Laboratory of Biophysics, “Jožef Stefan” Institute, Ljubljana 1001, Slovenia
| | - Lloyd
P. Horne
- Department of Pathology and Laboratory
Medicine, and Department of Chemistry, University of
North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Jennifer Wilder
- Department of Pathology and Laboratory
Medicine, and Department of Chemistry, University of
North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Michael Altenburg
- Department of Pathology and Laboratory
Medicine, and Department of Chemistry, University of
North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Ben Bleasdale
- Department of Pathology and Laboratory
Medicine, and Department of Chemistry, University of
North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Nobuyo Maeda
- Department of Pathology and Laboratory
Medicine, and Department of Chemistry, University of
North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Tilen Koklic
- Condensed
Matter Physics Department, Laboratory of Biophysics, “Jožef Stefan” Institute, Ljubljana 1001, Slovenia
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Li N, Zhao P, Liu N, Echeverria M, Moya S, Salmon L, Ruiz J, Astruc D. “Click” Chemistry Mildly Stabilizes Bifunctional Gold Nanoparticles for Sensing and Catalysis. Chemistry 2014; 20:8363-9. [DOI: 10.1002/chem.201402652] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2014] [Indexed: 11/06/2022]
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25
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Ciani L, Bortolussi S, Postuma I, Cansolino L, Ferrari C, Panza L, Altieri S, Ristori S. Rational design of gold nanoparticles functionalized with carboranes for application in Boron Neutron Capture Therapy. Int J Pharm 2013; 458:340-6. [PMID: 24140178 DOI: 10.1016/j.ijpharm.2013.10.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2013] [Revised: 09/29/2013] [Accepted: 10/05/2013] [Indexed: 01/14/2023]
Abstract
In this paper we propose a bottom-up approach to obtain new boron carriers built with ortho-carborane functionalized gold nanoparticles (GNPs) for applications in Boron Neutron Capture Therapy. The interaction between carboranes and the gold surface was assured by one or two SH-groups directly linked to the boron atoms of the B10C2 cage. This allowed obtaining stable, nontoxic systems, though optimal biological performance was hampered by low solubility in aqueous media. To improve cell uptake, the hydrophilic character of carborane functionalized GNPs was enhanced by further coverage with an appropriately tailored diblock copolymer (PEO-b-PCL). This polymer also contained pendant carboranes to provide anchoring to the pre-functionalized GNPs. In vitro tests, carried out on osteosarcoma cells, showed that the final vectors possessed excellent biocompatibility joint to the capacity of concentrating boron atoms in the target, which is encouraging evidenced to pursue applications in vivo.
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Affiliation(s)
- Laura Ciani
- Department of Chemistry 'Ugo Schiff' & CSGI, University of Florence, Florence, Italy
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