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Redón R, González-García T, Espinoza-Flores L, Reyes-Mosso A, Martin E, Ugalde-Saldivar VM. Palladium Nanoparticles from Different Reducing Systems as Heck Catalysts. Catal Letters 2022. [DOI: 10.1007/s10562-021-03613-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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2
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The Emission Mechanism of Gold Nanoclusters Capped with 11-Mercaptoundecanoic Acid, and the Detection of Methanol in Adulterated Wine Model. MATERIALS 2021; 14:ma14216342. [PMID: 34771871 PMCID: PMC8585185 DOI: 10.3390/ma14216342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 10/09/2021] [Accepted: 10/20/2021] [Indexed: 11/17/2022]
Abstract
The absorption and emission mechanisms of gold nanoclusters (AuNCs) have yet to be understood. In this article, 11-Mercaptoundecanoic acid (MUA) capped AuNCs (AuNC@MUA) were synthesized using the chemical etching method. Compared with MUA, AuNC@MUA had three obvious absorption peaks at 280 nm, 360 nm, and 390 nm; its photoluminescence excitation (PLE) peak and photoluminescence (PL) peak were located at 285 nm and 600 nm, respectively. The AuNC@MUA was hardly emissive when 360 nm and 390 nm were chosen as excitation wavelengths. The extremely large stokes-shift (>300 nm), and the mismatch between the excitation peaks and absorption peaks of AuNC@MUA, make it a particularly suitable model for studying the emission mechanism. When the ligands were partially removed by a small amount of sodium hypochlorite (NaClO) solution, the absorption peak showed a remarkable rise at 288 nm and declines at 360 nm and 390 nm. These experimental results illustrated that the absorption peak at 288 nm was mainly from metal-to-metal charge transfer (MMCT), while the absorption peaks at 360 nm and 390 nm were mainly from ligand-to-metal charge transfer (LMCT). The PLE peak coincided with the former absorption peak, which implied that the emission of the AuNC@MUA was originally from MMCT. It was also interesting that the emission mechanism could be switched to LMCT from MMCT by decreasing the size of the nanoclusters using 16-mercaptohexadecanoic acid (MHA), which possesses a stronger etching ability. Moreover, due to the different PL intensities of AuNC@MUA in methanol, ethanol, and water, it has been successfully applied in detecting methanol in adulterated wine models (methanol-ethanol-water mixtures).
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Quintana C, Cifuentes MP, Humphrey MG. Transition metal complex/gold nanoparticle hybrid materials. Chem Soc Rev 2020; 49:2316-2341. [PMID: 32149284 DOI: 10.1039/c9cs00651f] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Gold nanoparticles (AuNPs) are of considerable interest for diverse applications in areas such as medicine, catalysis, and sensing. AuNPs are generally surface-stabilized by organic matrices and coatings, and while the resultant organic compound (OC)/AuNP hybrids have been explored extensively, they are not suitable for certain applications (e.g. those necessitating reversible redox behaviour and/or long excited-state lifetimes), and they often suffer from low photo- and/or thermal stability. Transition metal complex (TMC)/AuNP hybrids have recently come to the fore as they circumvent some of the aforementioned shortcomings with OC/AuNP hybrids. This review summarizes progress thus far in the nascent field of TMC/AuNP hybrids. The structure and composition of extant TMC/AuNP hybrids are briefly reviewed and the range of TMCs employed in the shell of the hybrids are summarized, the one-phase, two-phase, and post-nanoparticle-synthesis synthetic methods to TMC/AuNP hybrids are discussed and contrasted, highlighting the advantages of variants of the last-mentioned procedure, and the utility of the various characterization techniques is discussed, emphasizing the need to employ multiple techniques in concert. Applications of TMC/AuNP hybrids in luminescence, electrochemical, and electro-optical sensing are described and critiqued, and their uses and potential in imaging, photo-dynamic therapy, nonlinear optics, and catalysis are assessed.
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Affiliation(s)
- Cristóbal Quintana
- Research School of Chemistry, Australian National University, Canberra ACT 2601, Australia.
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Fratoddi I. Hydrophobic and Hydrophilic Au and Ag Nanoparticles. Breakthroughs and Perspectives. NANOMATERIALS (BASEL, SWITZERLAND) 2017; 8:E11. [PMID: 29280980 PMCID: PMC5791098 DOI: 10.3390/nano8010011] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Revised: 11/27/2017] [Accepted: 12/19/2017] [Indexed: 12/13/2022]
Abstract
This review provides a broad look on the recent investigations on the synthesis, characterization and physico-chemical properties of noble metal nanoparticles, mainly gold and silver nanoparticles, stabilized with ligands of different chemical nature. A comprehensive review of the available literature in this field may be far too large and only some selected representative examples will be reported here, together with some recent achievements from our group, that will be discussed in more detail. Many efforts in finding synthetic routes have been performed so far to achieve metal nanoparticles with well-defined size, morphology and stability in different environments, to match the large variety of applications that can be foreseen for these materials. In particular, the synthesis and stabilization of gold and silver nanoparticles together with their properties in different emerging fields of nanomedicine, optics and sensors are reviewed and briefly commented.
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Affiliation(s)
- Ilaria Fratoddi
- Department of Chemistry, Sapienza University of Rome, P.le A. Moro 5, 00185 Rome, Italy.
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Chen Y, Wu Y, Gao J, Zhang Z, Wang L, Chen X, Mi J, Yao Y, Guan D, Chen B, Dai J. Transdermal Vascular Endothelial Growth Factor Delivery with Surface Engineered Gold Nanoparticles. ACS APPLIED MATERIALS & INTERFACES 2017; 9:5173-5180. [PMID: 28112909 DOI: 10.1021/acsami.6b15914] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Skin injuries caused by burns or radiation remain a serious concern in terms of clinical therapy. Because of the damage to the epidermis or dermis, angiogenesis is needed to repair the skin. Vascular endothelial growth factor (VEGF) is one of the most effective factors for promoting angiogenesis and preventing injury progression, but the delivery of VEGF to lesion sites is limited by the skin barrier. Recently, gold nanoparticle (AuNP)-mediated drug delivery into or through the epidermis and dermis has attracted much attention. However, the efficacy of the AuNP-mediated transdermal drug delivery remains unknown. In this study, gold nanoparticles were conjugated with VEGF and generated a surface by carrying negative charges, showing an ideal transdermal delivery efficacy for VEGF in wound repair. Our findings may provide new avenues for the treatment of cutaneous injuries.
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Affiliation(s)
- Ying Chen
- Institute of Combined Injury, State Key Laboratory of Trauma, Burns and Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Chongqing Engineering Research Center for Biomaterials and Regenerative Medicine, Third Military Medical University , Chongqing 400038, China
| | - Yonghui Wu
- Institute of Combined Injury, State Key Laboratory of Trauma, Burns and Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Chongqing Engineering Research Center for Biomaterials and Regenerative Medicine, Third Military Medical University , Chongqing 400038, China
| | - Jining Gao
- Institute of Combined Injury, State Key Laboratory of Trauma, Burns and Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Chongqing Engineering Research Center for Biomaterials and Regenerative Medicine, Third Military Medical University , Chongqing 400038, China
| | - Zihao Zhang
- Institute of Combined Injury, State Key Laboratory of Trauma, Burns and Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Chongqing Engineering Research Center for Biomaterials and Regenerative Medicine, Third Military Medical University , Chongqing 400038, China
| | - Linjie Wang
- Institute of Combined Injury, State Key Laboratory of Trauma, Burns and Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Chongqing Engineering Research Center for Biomaterials and Regenerative Medicine, Third Military Medical University , Chongqing 400038, China
| | - Xi Chen
- Institute of Combined Injury, State Key Laboratory of Trauma, Burns and Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Chongqing Engineering Research Center for Biomaterials and Regenerative Medicine, Third Military Medical University , Chongqing 400038, China
| | - Junwei Mi
- Institute of Combined Injury, State Key Laboratory of Trauma, Burns and Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Chongqing Engineering Research Center for Biomaterials and Regenerative Medicine, Third Military Medical University , Chongqing 400038, China
| | - Yuanjiang Yao
- Institute of Combined Injury, State Key Laboratory of Trauma, Burns and Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Chongqing Engineering Research Center for Biomaterials and Regenerative Medicine, Third Military Medical University , Chongqing 400038, China
| | - Dongwei Guan
- Institute of Combined Injury, State Key Laboratory of Trauma, Burns and Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Chongqing Engineering Research Center for Biomaterials and Regenerative Medicine, Third Military Medical University , Chongqing 400038, China
| | - Bing Chen
- Institute of Combined Injury, State Key Laboratory of Trauma, Burns and Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Chongqing Engineering Research Center for Biomaterials and Regenerative Medicine, Third Military Medical University , Chongqing 400038, China
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences , Beijing 100101, China
| | - Jianwu Dai
- Institute of Combined Injury, State Key Laboratory of Trauma, Burns and Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Chongqing Engineering Research Center for Biomaterials and Regenerative Medicine, Third Military Medical University , Chongqing 400038, China
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences , Beijing 100101, China
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6
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Porcaro F, Carlini L, Ugolini A, Visaggio D, Visca P, Fratoddi I, Venditti I, Meneghini C, Simonelli L, Marini C, Olszewski W, Ramanan N, Luisetto I, Battocchio C. Synthesis and Structural Characterization of Silver Nanoparticles Stabilized with 3-Mercapto-1-Propansulfonate and 1-Thioglucose Mixed Thiols for Antibacterial Applications. MATERIALS 2016; 9:ma9121028. [PMID: 28774148 PMCID: PMC5456982 DOI: 10.3390/ma9121028] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Revised: 12/14/2016] [Accepted: 12/15/2016] [Indexed: 11/16/2022]
Abstract
The synthesis, characterization and assessment of the antibacterial properties of hydrophilic silver nanoparticles (AgNPs) were investigated with the aim to probe their suitability for innovative applications in the field of nanobiotechnology. First, silver nanoparticles were synthetized and functionalized with two capping agents, namely 3-mercapto-1-propansulfonate (3MPS) and 1-β-thio-d-glucose (TG). The investigation of the structural and electronic properties of the nano-systems was carried out by means of X-ray Photoelectron Spectroscopy (XPS) and X-ray Absorption Spectroscopy (XAS). XPS data provided information about the system stability and the interactions between the metallic surface and the organic ligands. In addition, XPS data allowed us to achieve a deep understanding of the influence of the thiols stoichiometric ratio on the electronic properties and stability of AgNPs. In order to shed light on the structural and electronic local properties at Ag atoms sites, XAS at Ag K-Edge was successfully applied; furthermore, the combination of Dynamic Light Scattering (DLS) and XAS results allowed determining AgNPs sizes, ranging between 3 and 13 nm. Finally, preliminary studies on the antibacterial properties of AgNPs showed promising results on four of six multidrug-resistant bacteria belonging to the ESKAPE group (Enterococcus faecium, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa, and Enterobacter sp.).
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Affiliation(s)
- Francesco Porcaro
- Department of Sciences, Roma Tre University, Via della Vasca Navale 79, 00146 Rome, Italy.
| | - Laura Carlini
- Department of Sciences, Roma Tre University, Via della Vasca Navale 79, 00146 Rome, Italy.
| | - Andrea Ugolini
- Department of Sciences, Roma Tre University, Via della Vasca Navale 79, 00146 Rome, Italy.
| | - Daniela Visaggio
- Department of Sciences, Roma Tre University, Via della Vasca Navale 79, 00146 Rome, Italy.
| | - Paolo Visca
- Department of Sciences, Roma Tre University, Via della Vasca Navale 79, 00146 Rome, Italy.
| | - Ilaria Fratoddi
- Department of Chemistry, Sapienza University, P.le A. Moro 5, 00085 Rome, Italy.
| | - Iole Venditti
- Department of Chemistry, Sapienza University, P.le A. Moro 5, 00085 Rome, Italy.
| | - Carlo Meneghini
- Department of Sciences, Roma Tre University, Via della Vasca Navale 79, 00146 Rome, Italy.
| | - Laura Simonelli
- Alba Synchrotron Facility, Carrer de la Llum, 2-26, Cerdanyola del Vallès, 08290 Barcelona, Spain.
| | - Carlo Marini
- Alba Synchrotron Facility, Carrer de la Llum, 2-26, Cerdanyola del Vallès, 08290 Barcelona, Spain.
| | - Wojciech Olszewski
- Alba Synchrotron Facility, Carrer de la Llum, 2-26, Cerdanyola del Vallès, 08290 Barcelona, Spain.
- Faculty of Physics, University of Bialystok, 1L K. Ciolkowskiego street, 15-245 Bialystok, Poland.
| | - Nitya Ramanan
- Alba Synchrotron Facility, Carrer de la Llum, 2-26, Cerdanyola del Vallès, 08290 Barcelona, Spain.
| | - Igor Luisetto
- Department of Sciences, Roma Tre University, Via della Vasca Navale 79, 00146 Rome, Italy.
| | - Chiara Battocchio
- Department of Sciences, Roma Tre University, Via della Vasca Navale 79, 00146 Rome, Italy.
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Bessar H, Venditti I, Benassi L, Vaschieri C, Azzoni P, Pellacani G, Magnoni C, Botti E, Casagrande V, Federici M, Costanzo A, Fontana L, Testa G, Mostafa FF, Ibrahim SA, Russo MV, Fratoddi I. Functionalized gold nanoparticles for topical delivery of methotrexate for the possible treatment of psoriasis. Colloids Surf B Biointerfaces 2016; 141:141-147. [DOI: 10.1016/j.colsurfb.2016.01.021] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Revised: 12/16/2015] [Accepted: 01/12/2016] [Indexed: 10/22/2022]
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8
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Porcaro F, Battocchio C, Antoccia A, Fratoddi I, Venditti I, Fracassi A, Luisetto I, Russo MV, Polzonetti G. Synthesis of functionalized gold nanoparticles capped with 3-mercapto-1-propansulfonate and 1-thioglucose mixed thiols and "in vitro" bioresponse. Colloids Surf B Biointerfaces 2016; 142:408-416. [PMID: 26977977 DOI: 10.1016/j.colsurfb.2016.03.016] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Revised: 03/03/2016] [Accepted: 03/04/2016] [Indexed: 12/21/2022]
Abstract
The synthesis, characterization and assessment of biological behavior of innovative negatively charged functionalized gold nanoparticles is herein reported, for potential applications in the field of radiotherapy and drug delivery. Gold nanoparticles (AuNPs) functionalized with two capping agents, i.e., the 3-mercapto-1-propansulfonate (3-MPS) and 1-β-thio-D-glucose (TG), have been on purpose synthesized and fully characterized. Advanced characterization techniques including X-Ray Photoelectron Spectroscopy (XPS) were applied to probe the chemical structure of the synthesized nanomaterials. Z-potential and Dynamic Light Scattering measurements allowed assessing the nanodimension, dispersity, surface charge and stability of AuNPs. Transmission Electron Microscopy (TEM) and Flame Atomic Absorption Spectroscopy (FAAS) were applied to the "in vitro" HSG cell model, to investigate the nanoparticles-cells interaction and to evaluate the internalization efficiency, whereas short term cytotoxicity and long term cell killing were evaluated by means of MTT and SRB assays, respectively. In conclusion, in order to increase the amount of gold atoms inside the cell we have optimized the synthesis for a new kind of biocompatible and very stable negatively charged TG-functionalized nanoparticles, with diameters in a range that maximize the uptake in cells (i.e., ∼15nm). Such particles are very promising for radiotherapy and drug delivery application.
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Affiliation(s)
- F Porcaro
- Roma Tre University, Dept. of Sciences, Via della Vasca Navale 79, 00146 Rome Italy
| | - C Battocchio
- Roma Tre University, Dept. of Sciences, Via della Vasca Navale 79, 00146 Rome Italy
| | - A Antoccia
- Roma Tre University, Dept. of Sciences, Via della Vasca Navale 79, 00146 Rome Italy
| | - I Fratoddi
- Sapienza University, Dept. of Chemistry, P.le A. Moro 5, 00085 Rome Italy.
| | - I Venditti
- Sapienza University, Dept. of Chemistry, P.le A. Moro 5, 00085 Rome Italy
| | - A Fracassi
- Roma Tre University, Dept. of Sciences, Via della Vasca Navale 79, 00146 Rome Italy
| | - I Luisetto
- Roma Tre University, Dept. of Sciences, Via della Vasca Navale 79, 00146 Rome Italy
| | - M V Russo
- Sapienza University, Dept. of Chemistry, P.le A. Moro 5, 00085 Rome Italy
| | - G Polzonetti
- Roma Tre University, Dept. of Sciences, Via della Vasca Navale 79, 00146 Rome Italy
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10
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Venditti I, Palocci C, Chronopoulou L, Fratoddi I, Fontana L, Diociaiuti M, Russo MV. Candida rugosa lipase immobilization on hydrophilic charged gold nanoparticles as promising biocatalysts: Activity and stability investigations. Colloids Surf B Biointerfaces 2015; 131:93-101. [DOI: 10.1016/j.colsurfb.2015.04.046] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2015] [Revised: 04/16/2015] [Accepted: 04/20/2015] [Indexed: 12/15/2022]
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11
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Fratoddi I, Macagnano A, Battocchio C, Zampetti E, Venditti I, Russo MV, Bearzotti A. Platinum nanoparticles on electrospun titania nanofibers as hydrogen sensing materials working at room temperature. NANOSCALE 2014; 6:9177-9184. [PMID: 24981799 DOI: 10.1039/c4nr01400f] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Platinum nanoparticles (PtNPs), with diameters of 3-10 nm, were synthesized by water phase reduction, using 3-mercapto-1-propanesulfonate (3MPS) as a hydrophilic capping agent. PtNPs were deposited by a dipcoating technique on titania nanofibers (TiO2NFs), obtained by electrospinning. The investigated properties of the Pt-TiO2 hybrid at room temperature show that this material combines the properties of photoconduction of titania and the photocatalytic activity of the hybrid. To assess the best performance of Pt-TiO2, different measurements were performed at room temperature, comparing hydrogen response under UV of the uncoated TiO2NFs, compared with the Pt-TiO2 system prepared with two different amounts of PtNPs. During the sensing tests toward hydrogen an enhancement of photoconductivity (150%), an increase in response (400%) and an overall improvement of their dynamic behaviour were observed.
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Affiliation(s)
- Ilaria Fratoddi
- Department of Chemistry, University of Rome Sapiens, P.le A. Moro 5, I-00185 Rome, Italy.
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12
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Battocchio C, Fratoddi I, Fontana L, Bodo E, Porcaro F, Meneghini C, Pis I, Nappini S, Mobilio S, Russo MV, Polzonetti G. Silver nanoparticles linked by a Pt-containing organometallic dithiol bridge: study of local structure and interface by XAFS and SR-XPS. Phys Chem Chem Phys 2014; 16:11719-28. [PMID: 24811056 DOI: 10.1039/c4cp01264j] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Silver nanoparticles (AgNPs) functionalized with an organometallic bifunctional thiol containing Pt(ii) centers, generated in situ from trans-trans-[thioacetyl-bistributylphosphine-diethynylbiphenyl-diplatinum(ii)], were synthesized with different sulphur/metal molar ratios (i.e. AgNPs-1 and AgNPs-2) with the aim to obtain nanosystems of different mean size and self-organization behaviour. AgNPs spontaneously self-assemble, giving rise to 2D networks, as previously assessed. In this work a deeper insight into the chemico-physical properties of these AgNPs is proposed by means of synchrotron radiation induced X-ray photoelectron spectroscopy (SR-XPS) and X-ray absorption fine structure spectroscopy (XAFS) techniques. The results are discussed in order to probe the interaction at the interface between a noble metal and a thiol ligand at the atomic level and the aim of this study is to shed light on the chemical structure and self-organization details of nanosystems. The nature of the chemical interaction between the dithiol ligand and the Ag atoms on the nanoparticle surface was investigated by combining SR-XPS (S2p, Ag3d core levels) and XAS (S and Ag K-edges) analysis. UV-visible absorption and emission measurements were also carried out on all samples and compared with TD-DFT calculations so as to get a better understanding of their optical behavior and establish the nature of the excitation and emission processes.
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Affiliation(s)
- C Battocchio
- Roma Tre University, Department of Sciences and CISDiC, via della Vasca Navale 79, 00146 - Rome, Italy.
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Yarzhemsky VG, Battocchio C. The structure of gold nanoparticles and Au based thiol self-organized monolayers. RUSS J INORG CHEM+ 2011. [DOI: 10.1134/s003602361114004x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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14
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Fratoddi I, Battocchio C, Polzonetti G, Sciubba F, Delfini M, Russo MV. A Porphyrin-Bridged Pd Dimer Complex Stabilizes Gold Nanoparticles. Eur J Inorg Chem 2011. [DOI: 10.1002/ejic.201100339] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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15
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Fratoddi I, Venditti I, Battocchio C, Polzonetti G, Cametti C, Russo MV. Core shell hybrids based on noble metal nanoparticles and conjugated polymers: synthesis and characterization. NANOSCALE RESEARCH LETTERS 2011; 6:98. [PMID: 21711612 PMCID: PMC3212248 DOI: 10.1186/1556-276x-6-98] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2010] [Accepted: 01/21/2011] [Indexed: 05/30/2023]
Abstract
Noble metal nanoparticles of different sizes and shapes combined with conjugated functional polymers give rise to advanced core shell hybrids with interesting physical characteristics and potential applications in sensors or cancer therapy. In this paper, a versatile and facile synthesis of core shell systems based on noble metal nanoparticles (AuNPs, AgNPs, PtNPs), coated by copolymers belonging to the class of substituted polyacetylenes has been developed. The polymeric shells containing functionalities such as phenyl, ammonium, or thiol pending groups have been chosen in order to tune hydrophilic and hydrophobic properties and solubility of the target core shell hybrids. The Au, Ag, or Pt nanoparticles coated by poly(dimethylpropargylamonium chloride), or poly(phenylacetylene-co-allylmercaptan). The chemical structure of polymeric shell, size and size distribution and optical properties of hybrids have been assessed. The mean diameter of the metal core has been measured (about 10-30 nm) with polymeric shell of about 2 nm.
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Affiliation(s)
- Ilaria Fratoddi
- Department of Chemistry, University of Rome "Sapienza", P.le A.Moro 5, 00185 Rome, Italy
| | - Iole Venditti
- Department of Chemistry, University of Rome "Sapienza", P.le A.Moro 5, 00185 Rome, Italy
| | - Chiara Battocchio
- Department of Physics, Unità INSTM and CISDiC University Roma Tre, Via della Vasca Navale 85, 00146 Rome, Italy
| | - Giovanni Polzonetti
- Department of Physics, Unità INSTM and CISDiC University Roma Tre, Via della Vasca Navale 85, 00146 Rome, Italy
| | - Cesare Cametti
- Department of Physics, University of Rome "Sapienza", P.le A.Moro 5, 00185 Rome, Italy
| | - Maria Vittoria Russo
- Department of Chemistry, University of Rome "Sapienza", P.le A.Moro 5, 00185 Rome, Italy
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Vitaliano R, Fratoddi I, Venditti I, Roviello G, Battocchio C, Polzonetti G, Russo MV. Self-Assembled Monolayers Based on Pd-Containing Organometallic Thiols: Preparation and Structural Characterization. J Phys Chem A 2009; 113:14730-40. [PMID: 19673480 DOI: 10.1021/jp904865k] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Rosa Vitaliano
- Department of Chemistry, University of Rome “La Sapienza” P. le A. Moro, 5- 00185, Rome, Italy, Department of Chemistry, University of Napoli “Federico II”, Complesso di Monte Sant’Angelo, Via Cintia, 80126 Napoli, Italy, Department of Physics, INSTM, CNISM and CISDiC, University of Rome “Roma Tre” via della Vasca Navale 84 00146 Rome, Italy
| | - Ilaria Fratoddi
- Department of Chemistry, University of Rome “La Sapienza” P. le A. Moro, 5- 00185, Rome, Italy, Department of Chemistry, University of Napoli “Federico II”, Complesso di Monte Sant’Angelo, Via Cintia, 80126 Napoli, Italy, Department of Physics, INSTM, CNISM and CISDiC, University of Rome “Roma Tre” via della Vasca Navale 84 00146 Rome, Italy
| | - Iole Venditti
- Department of Chemistry, University of Rome “La Sapienza” P. le A. Moro, 5- 00185, Rome, Italy, Department of Chemistry, University of Napoli “Federico II”, Complesso di Monte Sant’Angelo, Via Cintia, 80126 Napoli, Italy, Department of Physics, INSTM, CNISM and CISDiC, University of Rome “Roma Tre” via della Vasca Navale 84 00146 Rome, Italy
| | - Giuseppina Roviello
- Department of Chemistry, University of Rome “La Sapienza” P. le A. Moro, 5- 00185, Rome, Italy, Department of Chemistry, University of Napoli “Federico II”, Complesso di Monte Sant’Angelo, Via Cintia, 80126 Napoli, Italy, Department of Physics, INSTM, CNISM and CISDiC, University of Rome “Roma Tre” via della Vasca Navale 84 00146 Rome, Italy
| | - Chiara Battocchio
- Department of Chemistry, University of Rome “La Sapienza” P. le A. Moro, 5- 00185, Rome, Italy, Department of Chemistry, University of Napoli “Federico II”, Complesso di Monte Sant’Angelo, Via Cintia, 80126 Napoli, Italy, Department of Physics, INSTM, CNISM and CISDiC, University of Rome “Roma Tre” via della Vasca Navale 84 00146 Rome, Italy
| | - Giovanni Polzonetti
- Department of Chemistry, University of Rome “La Sapienza” P. le A. Moro, 5- 00185, Rome, Italy, Department of Chemistry, University of Napoli “Federico II”, Complesso di Monte Sant’Angelo, Via Cintia, 80126 Napoli, Italy, Department of Physics, INSTM, CNISM and CISDiC, University of Rome “Roma Tre” via della Vasca Navale 84 00146 Rome, Italy
| | - Maria Vittoria Russo
- Department of Chemistry, University of Rome “La Sapienza” P. le A. Moro, 5- 00185, Rome, Italy, Department of Chemistry, University of Napoli “Federico II”, Complesso di Monte Sant’Angelo, Via Cintia, 80126 Napoli, Italy, Department of Physics, INSTM, CNISM and CISDiC, University of Rome “Roma Tre” via della Vasca Navale 84 00146 Rome, Italy
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Optical and Electronic NO(x) Sensors for Applications in Mechatronics. SENSORS 2009; 9:3337-56. [PMID: 22412315 PMCID: PMC3297121 DOI: 10.3390/s90503337] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/13/2009] [Revised: 04/24/2009] [Accepted: 05/06/2009] [Indexed: 11/22/2022]
Abstract
Current production and emerging NOx sensors based on optical and nanomaterials technologies are reviewed. In view of their potential applications in mechatronics, we compared the performance of: i) Quantum cascade lasers (QCL) based photoacoustic (PA) systems; ii) gold nanoparticles as catalytically active materials in field-effect transistor (FET) sensors, and iii) functionalized III-V semiconductor based devices. QCL-based PA sensors for NOx show a detection limit in the sub part-per-million range and are characterized by high selectivity and compact set-up. Electrochemically synthesized gold-nanoparticle FET sensors are able to monitor NOx in a concentration range from 50 to 200 parts per million and are suitable for miniaturization. Porphyrin-functionalized III-V semiconductor materials can be used for the fabrication of a reliable NOx sensor platform characterized by high conductivity, corrosion resistance, and strong surface state coupling.
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