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Caligiuri V, Nucera A, Patra A, Castriota M, De Luca A. Raman Scattering Enhancement through Pseudo-Cavity Modes. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:875. [PMID: 38786831 PMCID: PMC11124054 DOI: 10.3390/nano14100875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Revised: 05/12/2024] [Accepted: 05/15/2024] [Indexed: 05/25/2024]
Abstract
Raman spectroscopy plays a pivotal role in spectroscopic investigations. The small Raman scattering cross-section of numerous analytes, however, requires enhancement of the signal through specific structuring of the electromagnetic and morphological properties of the underlying surface. This enhancement technique is known as surface-enhanced Raman spectroscopy (SERS). Despite the existence of various proposed alternatives, the approach involving Fabry-Pérot cavities, which constitutes a straightforward method to enhance the electromagnetic field around the analyte, has not been extensively utilized. This is because, for the analyte to experience the maximum electric field, it needs to be embedded within the cavity. Consequently, the top mirror of the cavity will eventually shield it from the external laser source. Recently, an open-cavity configuration has been demonstrated to exhibit properties similar to the classic Fabry-Pérot configuration, with the added advantage of maintaining direct accessibility for the laser source. This paper showcases how such a simple yet innovative configuration can be effectively utilized to achieve remarkable Raman enhancement. The simple structure, coupled with its inexpensive nature and versatility in material selection and scalability, makes it an ideal choice for various analytes and integration into diverse Raman apparatus setups.
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Affiliation(s)
- Vincenzo Caligiuri
- Department of Physics, University of Calabria, 87036 Rende, Italy; (V.C.); (A.N.); (A.P.)
- Consiglio Nazionale delle Ricerche (CNR), Istituto di Nanotecnologia (Nanotec), Sede Secondaria di Rende, 87036 Rende, Italy
| | - Antonello Nucera
- Department of Physics, University of Calabria, 87036 Rende, Italy; (V.C.); (A.N.); (A.P.)
- Consiglio Nazionale delle Ricerche (CNR), Istituto di Nanotecnologia (Nanotec), Sede Secondaria di Rende, 87036 Rende, Italy
| | - Aniket Patra
- Department of Physics, University of Calabria, 87036 Rende, Italy; (V.C.); (A.N.); (A.P.)
| | - Marco Castriota
- Department of Physics, University of Calabria, 87036 Rende, Italy; (V.C.); (A.N.); (A.P.)
- Consiglio Nazionale delle Ricerche (CNR), Istituto di Nanotecnologia (Nanotec), Sede Secondaria di Rende, 87036 Rende, Italy
| | - Antonio De Luca
- Department of Physics, University of Calabria, 87036 Rende, Italy; (V.C.); (A.N.); (A.P.)
- Consiglio Nazionale delle Ricerche (CNR), Istituto di Nanotecnologia (Nanotec), Sede Secondaria di Rende, 87036 Rende, Italy
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Vaidya S, Hawila S, Zeyu F, Khan T, Fateeva A, Toche F, Chiriac R, Bonhommé A, Ledoux G, Lebègue S, Park J, Kim WJ, Liu J, Guo X, Mesbah A, Horike S, Demessence A. Gold(I)-Thiolate Coordination Polymers as Multifunctional Materials: The Case of Au(I)- p-Fluorothiophenolate. ACS APPLIED MATERIALS & INTERFACES 2024; 16:22512-22521. [PMID: 38651627 DOI: 10.1021/acsami.4c01958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
Gold-sulfur interaction has vital importance in nanotechnologies and material chemistry to design functional nanoparticles, self-assembled monolayers, or molecular complexes. In this paper, a mixture of only two basic precursors, such as the chloroauric acid (HAu(III)Cl4) and a thiol molecule (p-fluorothiophenol (p-HSPhF)), are used for the synthesis of gold(I)-thiolate coordination polymers. Under different conditions of synthesis and external stimuli, five different functional materials with different states of [Au(I)(p-SPhF)]n can be afforded. These gold-thiolate compounds are (i) red emissive, flexible, and crystalline fibers; (ii) composite materials made of these red emissive fibers and gold nanoparticles; (iii) amorphous phase; (iv) transparent glass; and (v) amorphous-to-crystalline phase-change material associated with an ON/OFF switch of luminescence. The different functionalities of these materials highlight the great versatility of the gold(I) thiolate coordination polymers with easy synthesis and diverse shaping that may have great potential as sustainable phosphors, smart textiles, sensors, and phase change memories.
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Affiliation(s)
- Shefali Vaidya
- University Claude Bernard Lyon 1, CNRS, IRCELYON - UMR 5256, Villeurbanne 69100, France
- Institute of Experimental and Applied Physics, Czech Technical University in Prague, Prague 110 00, Czech Republic
| | - Saly Hawila
- University Claude Bernard Lyon 1, CNRS, IRCELYON - UMR 5256, Villeurbanne 69100, France
| | - Fan Zeyu
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Tuhin Khan
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Prague 162 00, Czech Republic
| | - Alexandra Fateeva
- University Claude Bernard Lyon 1, CNRS, LMI - UMR 5615, Villeurbanne 69622, France
| | - François Toche
- University Claude Bernard Lyon 1, CNRS, LMI - UMR 5615, Villeurbanne 69622, France
| | - Rodica Chiriac
- University Claude Bernard Lyon 1, CNRS, LMI - UMR 5615, Villeurbanne 69622, France
| | - Anne Bonhommé
- University Claude Bernard Lyon 1, CNRS, IRCELYON - UMR 5256, Villeurbanne 69100, France
| | - Gilles Ledoux
- University Claude Bernard Lyon 1, CNRS, ILM - UMR 5306, Villeurbanne 69622, France
| | - Sébastien Lebègue
- University of Lorraine, CNRS, LPCT - UMR 7019, Vandœuvre-lès-Nancy 54506, France
| | - Jeongmin Park
- Department of Biology and Chemistry, Changwon National University, Gyeongsangnam-do 51140, South Korea
| | - Won June Kim
- Department of Biology and Chemistry, Changwon National University, Gyeongsangnam-do 51140, South Korea
| | - Juejing Liu
- Department of Chemistry, Washington State University, Pullman, Washington 99164, United States
| | - Xiaofeng Guo
- Department of Chemistry, Washington State University, Pullman, Washington 99164, United States
| | - Adel Mesbah
- University Claude Bernard Lyon 1, CNRS, IRCELYON - UMR 5256, Villeurbanne 69100, France
| | - Satoshi Horike
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
- Department of Materials Science and Engineering, School of Molecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Rayong 21210, Thailand
| | - Aude Demessence
- University Claude Bernard Lyon 1, CNRS, IRCELYON - UMR 5256, Villeurbanne 69100, France
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Rizzuto C, Barberi RC, Castriota M. Development of Electrochromic Devices, Based on Polymeric Gel, for Energy Saving Applications. Polymers (Basel) 2023; 15:3347. [PMID: 37631404 PMCID: PMC10458007 DOI: 10.3390/polym15163347] [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: 06/30/2023] [Revised: 07/28/2023] [Accepted: 08/07/2023] [Indexed: 08/27/2023] Open
Abstract
In this work, the implementation of an electrochromic device (10 cm × 10 cm in size) for energy saving applications has been presented. As electrochromic system has been used with an electrochromic solution (ECsol) made by ethyl viologen diperchlorate [EV(ClO4)2], 1,1'-diethyl ferrocene (DEFc) and propylene carbonate (PC), as solvent. The final system has been obtained by mixing the ECsol, described above, with a polymeric system made by Bisphenol-A glycerolate (1 glycerol/phenol) diacrylate (BPA) and 2,2-Dimethoxy-2-phenylacetophenone (Irgacure 651) in a weight percentage equal to 60:40% w/w, respectively. Lithography has been used to make a spacer pattern with a thickness of about 15-20 µm between the two substrates. Micro-Raman spectroscopy confirmed the presence of the EV•+ as justified by the blue color of the electrochromic device in the ON state. Electrochemical and optical properties of the electrochromic device have been studied. The device shows reversible electrochromic behavior as confirmed by cyclic color variation due to the reduction and oxidation process of the EV2+/EV•+ couple. The electrochromic device shows a variation of the % transmittance in the visible region at 400 nm of 59.6% in the OFF state and 0.48% at 3.0 V. At 606 nm the transmittance in the bleached state is 84.58% in the OFF state and then decreases to 1.01% when it is fully colored at 3.0 V. In the NIR region at 890 nm, the device shows a transmittance of 74.3% in the OFF state and 23.7% at 3.0 V while at 1165 nm the values of the transmittance changed from 83.21% in the OFF state to 1.58% in the ON state at 3.0 V. The electrochromic device shows high values of CCR% and exhibits excellent values of CE in both visible and near-infrared regions when switched between OFF/ON states. In the NIR region at 890 nm, electrochromic devices can be used for the energy-saving of buildings with a promising CE of 120.9 cm2/C and 420.1 cm2/C at 1165 nm.
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Affiliation(s)
- Carmen Rizzuto
- Department of Physics, University of Calabria Ponte Bucci, Cubo 33B, 87036 Rende, CS, Italy
| | - Riccardo C. Barberi
- Department of Physics, University of Calabria Ponte Bucci, Cubo 33B, 87036 Rende, CS, Italy
- CNR-Nanotec c/o Department of Physics, University of Calabria Ponte Bucci, Cubo 33B, 87036 Rende, CS, Italy
| | - Marco Castriota
- Department of Physics, University of Calabria Ponte Bucci, Cubo 33B, 87036 Rende, CS, Italy
- CNR-Nanotec c/o Department of Physics, University of Calabria Ponte Bucci, Cubo 33B, 87036 Rende, CS, Italy
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Candreva A, De Rose R, Perrotta ID, Guglielmelli A, La Deda M. Light-Induced Clusterization of Gold Nanoparticles: A New Photo-Triggered Antibacterial against E. coli Proliferation. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:nano13040746. [PMID: 36839113 PMCID: PMC9967119 DOI: 10.3390/nano13040746] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 02/13/2023] [Accepted: 02/14/2023] [Indexed: 05/14/2023]
Abstract
Metallic nanoparticles show plasmon resonance phenomena when irradiated with electromagnetic radiation of a suitable wavelength, whose value depends on their composition, size, and shape. The damping of the surface electron oscillation causes a release of heat, which causes a large increase in local temperature. Furthermore, this increase is enhanced when nanoparticle aggregation phenomena occur. Local temperature increase is extensively exploited in photothermal therapy, where light is used to induce cellular damage. To activate the plasmon in the visible range, we synthesized 50 nm diameter spherical gold nanoparticles (AuNP) coated with polyethylene glycol and administered them to an E. coli culture. The experiments were carried out, at different gold nanoparticle concentrations, in the dark and under irradiation. In both cases, the nanoparticles penetrated the bacterial wall, but a different toxic effect was observed; while in the dark we observed an inhibition of bacterial growth of 46%, at the same concentration, under irradiation, we observed a bactericidal effect (99% growth inhibition). Photothermal measurements and SEM observations allowed us to conclude that the extraordinary effect is due to the formation, at low concentrations, of a light-induced cluster of gold nanoparticles, which does not form in the absence of bacteria, leading us to the conclusion that the bacterium wall catalyzes the formation of these clusters which are ultimately responsible for the significant increase in the measured temperature and cause of the bactericidal effect. This photothermal effect is achieved by low-power irradiation and only in the presence of the pathogen: in its absence, the lack of gold nanoparticles clustering does not lead to any phototoxic effect. Therefore, it may represent a proof of concept of an innovative nanoscale pathogen responsive system against bacterial infections.
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Affiliation(s)
- Angela Candreva
- Department of Chemistry and Chemical Technologies, University of Calabria, 87036 Rende, Italy
- CNR-NANOTEC, Institute of Nanotechnology U.O.S, Cosenza, 87036 Rende, Italy
| | - Renata De Rose
- Department of Chemistry and Chemical Technologies, University of Calabria, 87036 Rende, Italy
| | - Ida Daniela Perrotta
- Department of Biology, Ecology and Earth Sciences, Centre for Microscopy and Microanalysis (CM2), University of Calabria, 87036 Rende, Italy
| | - Alexa Guglielmelli
- CNR-NANOTEC, Institute of Nanotechnology U.O.S, Cosenza, 87036 Rende, Italy
- Department of Physics, NLHT-Lab, University of Calabria, 87036 Rende, Italy
| | - Massimo La Deda
- Department of Chemistry and Chemical Technologies, University of Calabria, 87036 Rende, Italy
- CNR-NANOTEC, Institute of Nanotechnology U.O.S, Cosenza, 87036 Rende, Italy
- Correspondence:
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Nucera A, Grillo R, Rizzuto C, Barberi RC, Castriota M, Bürgi T, Caputo R, Palermo G. Effect of the Combination of Gold Nanoparticles and Polyelectrolyte Layers on SERS Measurements. BIOSENSORS 2022; 12:bios12100895. [PMID: 36291032 PMCID: PMC9599540 DOI: 10.3390/bios12100895] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 10/11/2022] [Accepted: 10/17/2022] [Indexed: 06/02/2023]
Abstract
In this study, polyelectrolyte (PE) layers are deposited on substrates made by glass covered with an array of gold nanoparticles (GNPs). In particular, the samples studied have 0 PE layers (GGPE0), 3 PE layers (GGPE3), 11 PE layers (GGPE11), and 21 PE layers (GGPE21). All samples have been studied by micro-Raman spectroscopy. An acetic acid solution (10% v/v) has been used as a standard solution in order to investigate the SERS effect induced by different numbers of PE layers in each sample. The Surface Enhancement Raman Spectroscopy (SERS) effect correlating to the number of PE layers deposited on the samples has been shown. This effect is explained in terms of an increase in the interaction between the photon of the laser source and the plasmonic band of the GNPs due to a change of the permittivity of the surrounding medium around the GNPs. The trends of the ratios of the intensities of the Raman bands of the acetic acid solution (acetic acid and water molecules) on the band at 1098 cm-1 ascribed to the substrates increase, and the number of PE layers increases.
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Affiliation(s)
- Antonello Nucera
- Department of Physics, University of Calabria, Via Ponte Bucci, Cubo 31C, 87036 Rende, Cosenza, Italy
- CNR-Nanotec, Via Ponte Bucci, Cubo 33C, 87036 Rende, Cosenza, Italy
| | - Rossella Grillo
- Department of Physical Chemistry, University of Geneva, 30 Quai Ernest-Ansermet, 1211 Geneva, Switzerland
| | - Carmen Rizzuto
- Department of Physics, University of Calabria, Via Ponte Bucci, Cubo 31C, 87036 Rende, Cosenza, Italy
- CNR-Nanotec, Via Ponte Bucci, Cubo 33C, 87036 Rende, Cosenza, Italy
| | - Riccardo Cristoforo Barberi
- Department of Physics, University of Calabria, Via Ponte Bucci, Cubo 31C, 87036 Rende, Cosenza, Italy
- CNR-Nanotec, Via Ponte Bucci, Cubo 33C, 87036 Rende, Cosenza, Italy
| | - Marco Castriota
- Department of Physics, University of Calabria, Via Ponte Bucci, Cubo 31C, 87036 Rende, Cosenza, Italy
- CNR-Nanotec, Via Ponte Bucci, Cubo 33C, 87036 Rende, Cosenza, Italy
| | - Thomas Bürgi
- Department of Physical Chemistry, University of Geneva, 30 Quai Ernest-Ansermet, 1211 Geneva, Switzerland
| | - Roberto Caputo
- Department of Physics, University of Calabria, Via Ponte Bucci, Cubo 31C, 87036 Rende, Cosenza, Italy
- CNR-Nanotec, Via Ponte Bucci, Cubo 33C, 87036 Rende, Cosenza, Italy
| | - Giovanna Palermo
- Department of Physics, University of Calabria, Via Ponte Bucci, Cubo 31C, 87036 Rende, Cosenza, Italy
- CNR-Nanotec, Via Ponte Bucci, Cubo 33C, 87036 Rende, Cosenza, Italy
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Candreva A, Parisi F, Bartucci R, Guzzi R, Di Maio G, Scarpelli F, Aiello I, Godbert N, La Deda M. Synthesis and Characterization of Hyper‐Branched Nanoparticles with Magnetic and Plasmonic Properties. ChemistrySelect 2022. [DOI: 10.1002/slct.202201375] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Angela Candreva
- Department of Chemistry and Chemical Technologies University of Calabria 87036 Rende CS Italy
- CNR-NANOTEC Istituto di Nanotecnologia U.O.S Cosenza (CS) 87036 Rende Italy
| | - Francesco Parisi
- Department of Chemistry and Chemical Technologies University of Calabria 87036 Rende CS Italy
| | - Rosa Bartucci
- Department of Chemistry and Chemical Technologies University of Calabria 87036 Rende CS Italy
- Department of Physics Molecular Biophysics Laboratory University of Calabria 87036 Rende CS Italy
| | - Rita Guzzi
- CNR-NANOTEC Istituto di Nanotecnologia U.O.S Cosenza (CS) 87036 Rende Italy
- Department of Physics Molecular Biophysics Laboratory University of Calabria 87036 Rende CS Italy
| | - Giuseppe Di Maio
- Department of Chemistry and Chemical Technologies University of Calabria 87036 Rende CS Italy
| | - Francesca Scarpelli
- Department of Chemistry and Chemical Technologies University of Calabria 87036 Rende CS Italy
| | - Iolinda Aiello
- Department of Chemistry and Chemical Technologies University of Calabria 87036 Rende CS Italy
- CNR-NANOTEC Istituto di Nanotecnologia U.O.S Cosenza (CS) 87036 Rende Italy
| | - Nicolas Godbert
- Department of Chemistry and Chemical Technologies University of Calabria 87036 Rende CS Italy
| | - Massimo La Deda
- Department of Chemistry and Chemical Technologies University of Calabria 87036 Rende CS Italy
- CNR-NANOTEC Istituto di Nanotecnologia U.O.S Cosenza (CS) 87036 Rende Italy
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