1
|
Zhao W, Tan R, Yang Y, Yang H, Wang J, Yin X, Wu D, Zhang T. Galvanic-Replacement-Assisted Synthesis of Nanostructured Silver-Surface for SERS Characterization of Two-Dimensional Polymers. Sensors (Basel) 2024; 24:474. [PMID: 38257565 PMCID: PMC10819046 DOI: 10.3390/s24020474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 01/05/2024] [Accepted: 01/09/2024] [Indexed: 01/24/2024]
Abstract
Surface-enhanced Raman scattering (SERS) spectroscopy is a powerful technology in trace analysis. However, the wide applications of SERS in practice are limited by the expensive substrate materials and the complicated preparation processes. Here we report a simple and economical galvanic-replacement-assisted synthesis route to prepare Ag nanoparticles on Cu(0) foil (nanoAg@Cu), which can be directly used as SERS substrate. The fabrication process is fast (ca. 10 min) and easily scaled up to centimeters or even larger. In addition, the morphology of the nanoAg@Cu (with Ag particles size from 30 nm to 160 nm) can be adjusted by various additives (e.g., amino-containing ligands). Finally, we show that the as-prepared nanoAg@Cu can be used for SERS characterization of two-dimensional polymers, and ca. 298 times relative enhancement of Raman intensity is achieved. This work offers a simple and economical strategy for the scalable fabrication of silver-based SERS substrate in thin film analysis.
Collapse
Affiliation(s)
- Wenkai Zhao
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Runxiang Tan
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
- Key Laboratory of Leather Chemistry and Engineering of the Education Ministry, Sichuan University, Chengdu 610065, China
| | - Yanping Yang
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - Haoyong Yang
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jianing Wang
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - Xiaodong Yin
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Daheng Wu
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - Tao Zhang
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| |
Collapse
|
2
|
Badillo-Ramírez I, Janssen SAJ, Soufi G, Slipets R, Zór K, Boisen A. Label-free SERS assay combined with multivariate spectral data analysis for lamotrigine quantification in human serum. Mikrochim Acta 2023; 190:495. [PMID: 38036694 PMCID: PMC10689517 DOI: 10.1007/s00604-023-06085-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Accepted: 11/03/2023] [Indexed: 12/02/2023]
Abstract
Considering the need for a more time and cost-effective method for lamotrigine (LTG) detection in clinics we developed a fast and robust label-free assay based on surface-enhanced Raman scattering (SERS) for LTG quantification from human serum. The optimization and application of the developed assay is presented showing the: (i) exploration of different methods for LTG separation from human serum; (ii) implementation of a molecular adsorption step on an ordered Au nanopillar SERS substrate; (iii) adaptation of a fast scanning of the SERS substrate, performed with a custom-built compact Raman spectrometer; and (iv) development of LTG quantification methods with univariate and multivariate spectral data analysis. Our results showed, for the first time, the SERS-based characterization of LTG and its label-free identification in human serum. We found that combining a miniaturized solid phase extraction, as sample pre-treatment with the SERS assay, and using a multivariate model is an optimal strategy for LTG quantification in human serum in a linear range from 9.5 to 75 μM, with LoD and LoQ of 3.2 μM and 9.5 μM, respectively, covering the suggested clinical therapeutic window. We also showed that the developed assay allowed for quantifying LTG from human serum in the presence of other drugs, thereby demonstrating the robustness of label-free SERS. The sensing approach and instrumentation can be further automated and integrated in devices that can advance the drug monitoring in real clinical settings.
Collapse
Affiliation(s)
- Isidro Badillo-Ramírez
- Center for Intelligent Drug Delivery and Sensing Using Microcontainers and Nanomechanics (IDUN), Department of Health Technology, Technical University of Denmark, 2800, Kongens Lyngby, Denmark.
- BioInnovation Institute Foundation, 2200, Copenhagen N, Denmark.
| | - Selina A J Janssen
- Molecular Biosensing for Medical Diagnostics (MBx), Department of Biomedical Engineering, Eindhoven University of Technology, 5600 MB, Eindhoven, The Netherlands
| | - Gohar Soufi
- Center for Intelligent Drug Delivery and Sensing Using Microcontainers and Nanomechanics (IDUN), Department of Health Technology, Technical University of Denmark, 2800, Kongens Lyngby, Denmark
- BioInnovation Institute Foundation, 2200, Copenhagen N, Denmark
| | - Roman Slipets
- Center for Intelligent Drug Delivery and Sensing Using Microcontainers and Nanomechanics (IDUN), Department of Health Technology, Technical University of Denmark, 2800, Kongens Lyngby, Denmark
- BioInnovation Institute Foundation, 2200, Copenhagen N, Denmark
| | - Kinga Zór
- Center for Intelligent Drug Delivery and Sensing Using Microcontainers and Nanomechanics (IDUN), Department of Health Technology, Technical University of Denmark, 2800, Kongens Lyngby, Denmark
- BioInnovation Institute Foundation, 2200, Copenhagen N, Denmark
| | - Anja Boisen
- Center for Intelligent Drug Delivery and Sensing Using Microcontainers and Nanomechanics (IDUN), Department of Health Technology, Technical University of Denmark, 2800, Kongens Lyngby, Denmark
- BioInnovation Institute Foundation, 2200, Copenhagen N, Denmark
| |
Collapse
|
3
|
Nisini G, Scroccarello A, Ripanti F, Fasolato C, Cappelluti F, Capocefalo A, Della Pelle F, Compagnone D, Postorino P. Nanoscale Surface-Enhanced Raman Spectroscopy Investigation of a Polyphenol-Based Plasmonic Nanovector. Nanomaterials (Basel) 2023; 13:377. [PMID: 36770338 PMCID: PMC9921702 DOI: 10.3390/nano13030377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 01/05/2023] [Accepted: 01/12/2023] [Indexed: 06/18/2023]
Abstract
The demand for next-generation multifunctional nanovectors, combining therapeutic effects with specific cellular targeting, has significantly grown during the last few years, pursuing less invasive therapy strategies. Polyphenol-conjugated silver nanoparticles (AgNPs) appear as potential multifunctional nanovectors, integrating the biorecognition capability and the antioxidant power of polyphenols, the antimicrobial activity of silver, and the drug delivery capability of NPs. We present a spectroscopic and microscopic investigation on polyphenol-synthesized AgNPs, selecting caffeic acid (CA) and catechol (CT) as model polyphenols and using them as reducing agents for the AgNP green synthesis, both in the presence and in the absence of a capping agent. We exploit the plasmonic properties of AgNPs to collect Surface-Enhanced Raman Scattering (SERS) spectra from the nanosized region next to the Ag surface and to characterize the molecular environment in the proximity of the NP, assessing the orientation and tunable deprotonation level of CA, depending on the synthesis conditions. Our results suggest that the SERS investigation of such nanovectors can provide crucial information for their perspective biomedical application.
Collapse
Affiliation(s)
- Giacomo Nisini
- Physics Department, Sapienza University, P.le A. Moro 5, 00185 Rome, Italy
| | - Annalisa Scroccarello
- Department of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, via R. Balzarini 1, 64100 Teramo, Italy
| | - Francesca Ripanti
- Physics Department, Sapienza University, P.le A. Moro 5, 00185 Rome, Italy
- Physics and Geology Department, University of Perugia, via A. Pascoli, 06123 Perugia, Italy
| | - Claudia Fasolato
- Institute for Complex Systems, National Research Council, P.le A. Moro 5, 00185 Rome, Italy
| | | | - Angela Capocefalo
- Institute for Complex Systems, National Research Council, P.le A. Moro 5, 00185 Rome, Italy
| | - Flavio Della Pelle
- Department of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, via R. Balzarini 1, 64100 Teramo, Italy
| | - Dario Compagnone
- Department of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, via R. Balzarini 1, 64100 Teramo, Italy
| | - Paolo Postorino
- Physics Department, Sapienza University, P.le A. Moro 5, 00185 Rome, Italy
| |
Collapse
|
4
|
Muniz-Miranda M, Muniz-Miranda F, Menziani MC, Pedone A. Can DFT Calculations Provide Useful Information for SERS Applications? Molecules 2023; 28. [PMID: 36677634 DOI: 10.3390/molecules28020573] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 12/21/2022] [Accepted: 01/03/2023] [Indexed: 01/09/2023]
Abstract
Density functional theory (DFT) calculations allow us to reproduce the SERS (surface-enhanced Raman scattering) spectra of molecules adsorbed on nanostructured metal surfaces and extract the most information this spectroscopy is potentially able to provide. The latter point mainly concerns the anchoring mechanism and the bond strength between molecule and metal as well as the structural and electronic modifications of the adsorbed molecule. These findings are of fundamental importance for the application of this spectroscopic technique. This review presents and discusses some SERS-DFT studies carried out in Italy as a collaboration between the universities of Modena and Reggio-Emilia and of Florence, giving an overview of the information that we can extract with a combination of experimental SERS spectra and DFT modeling. In addition, a selection of the most recent studies and advancements on the DFT approach to SERS spectroscopy is reported with commentary.
Collapse
|
5
|
Lanzalaco S, Gil P, Mingot J, Àgueda A, Alemán C, Armelin E. Dual-Responsive Polypropylene Meshes Actuating as Thermal and SERS Sensors. ACS Biomater Sci Eng 2022; 8:3329-3340. [PMID: 35653133 PMCID: PMC9988207 DOI: 10.1021/acsbiomaterials.2c00334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Polypropylene (PP) surgical meshes, with different knitted architectures, were chemically functionalized with gold nanoparticles (AuNPs) and 4-mercaptothiazole (4-MB) to transform their fibers into a surface enhanced Raman scattering (SERS) detectable plastic material. The application of a thin layer of poly[N-isopropylacrylamide-co-N,N'-methylene bis(acrylamide)] (PNIPAAm-co-MBA) graft copolymer, covalently polymerized to the mesh-gold substrate, caused the conversion of the inert plastic into a thermoresponsive material, resulting in the first PP implantable mesh with both SERS and temperature stimulus responses. AuNPs were homogeneously distributed over the PP yarns, offering a clear SERS recognition together with higher PNIPAAm lower critical solution temperature (LCST ∼ 37 °C) than without the metallic particles (LCST ∼ 32 °C). An infrared thermographic camera was used to observe the polymer-hydrogel folding-unfolding process and to identify the new value of the LCST, connected with the heat generation by plasmonic-resonance gold NPs. The development of SERS PP prosthesis will be relevant for the bioimaging and biomarker detection of the implant by using the plasmonic effect and Raman vibrational spectroscopy for minimally invasive interventions (such as laparoscopy), to prevent patient inflammatory processes. Furthermore, Raman sources have been proved to not damage the cells, like happens with near-infrared irradiation, representing another advantage of moving to SERS approaches. The findings reported here offer unprecedented application possibilities in the biomedical field by extrapolating the material functionalization to other nonabsorbable polymer made devices (e.g., surgical sutures, grapes, wound dressings, among others).
Collapse
Affiliation(s)
- Sonia Lanzalaco
- Departament d'Enginyeria Química, IMEM-BRT, EEBE, Universitat Politècnica de Catalunya, C/Eduard Maristany, 10-14, Ed. I, Second Floor, 08019, Barcelona, Spain.,Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, C/Eduard Maristany, 10-14, Basement S-1, 08019, Barcelona, Spain
| | - Pau Gil
- Departament d'Enginyeria Química, IMEM-BRT, EEBE, Universitat Politècnica de Catalunya, C/Eduard Maristany, 10-14, Ed. I, Second Floor, 08019, Barcelona, Spain
| | - Júlia Mingot
- Departament d'Enginyeria Química, IMEM-BRT, EEBE, Universitat Politècnica de Catalunya, C/Eduard Maristany, 10-14, Ed. I, Second Floor, 08019, Barcelona, Spain.,Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, C/Eduard Maristany, 10-14, Basement S-1, 08019, Barcelona, Spain
| | - Alba Àgueda
- Departament d'Enginyeria Química, CERTEC, EEBE, Universitat Politècnica de Catalunya, C/Eduard Maristany, 10-14, Ed. I, Fifth floor, 08019, Barcelona, Spain
| | - Carlos Alemán
- Departament d'Enginyeria Química, IMEM-BRT, EEBE, Universitat Politècnica de Catalunya, C/Eduard Maristany, 10-14, Ed. I, Second Floor, 08019, Barcelona, Spain.,Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, C/Eduard Maristany, 10-14, Basement S-1, 08019, Barcelona, Spain.,Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology, Baldiri Reixac 10-12, 08028, Barcelona, Spain
| | - Elaine Armelin
- Departament d'Enginyeria Química, IMEM-BRT, EEBE, Universitat Politècnica de Catalunya, C/Eduard Maristany, 10-14, Ed. I, Second Floor, 08019, Barcelona, Spain.,Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, C/Eduard Maristany, 10-14, Basement S-1, 08019, Barcelona, Spain
| |
Collapse
|
6
|
Kang Y, Kim HJ, Lee SH, Noh H. Paper-Based Substrate for a Surface-Enhanced Raman Spectroscopy Biosensing Platform-A Silver/Chitosan Nanocomposite Approach. Biosensors (Basel) 2022; 12:266. [PMID: 35624567 PMCID: PMC9138243 DOI: 10.3390/bios12050266] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 04/15/2022] [Accepted: 04/20/2022] [Indexed: 06/15/2023]
Abstract
Paper is a popular platform material in all areas of sensor research due to its porosity, large surface area, and biodegradability, to name but a few. Many paper-based nanocomposites have been reported in the last decade as novel substrates for surface-enhanced Raman spectroscopy (SERS). However, there are still limiting factors, like the low density of hot spots or loss of wettability. Herein, we designed a process to fabricate a silver-chitosan nanocomposite layer on paper celluloses by a layer-by-layer method and pH-triggered chitosan assembly. Under microscopic observation, the resulting material showed a nanoporous structure, and silver nanoparticles were anchored evenly over the nanocomposite layer. In SERS measurement, the detection limit of 4-aminothiophenol was 5.13 ppb. Furthermore, its mechanical property and a strategy toward further biosensing approaches were investigated.
Collapse
Affiliation(s)
- Yuri Kang
- Department of Optometry, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul 01811, Korea; (Y.K.); (H.J.K.)
| | - Hyeok Jung Kim
- Department of Optometry, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul 01811, Korea; (Y.K.); (H.J.K.)
| | - Sung Hoon Lee
- Corning Technology Center Korea, Corning Precision Materials Co., Ltd., 212 Tangjeong-ro, Asan 31454, Korea
| | - Hyeran Noh
- Department of Optometry, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul 01811, Korea; (Y.K.); (H.J.K.)
- Convergence Institute of Biomedical Engineering and Biomaterials, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul 01811, Korea
| |
Collapse
|
7
|
Berge M, Dowek A, Prognon P, Legrand FX, Tfayli A, Minh Mai Lê L, Caudron E. Optimization of experimental conditions by surface enhanced Raman Scattering (SERS) spectroscopy with gold nanoparticles suspensions. Spectrochim Acta A Mol Biomol Spectrosc 2022; 268:120628. [PMID: 34810096 DOI: 10.1016/j.saa.2021.120628] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 11/09/2021] [Accepted: 11/11/2021] [Indexed: 06/13/2023]
Abstract
Surface Enhanced Raman Scattering (SERS) spectroscopy is a rapid and innovative analysis technique involving metallic nanoparticles (NPs). The interaction between NPs and norepinephrine gives an exaltation of the Raman signal under certain experimental conditions. The control of the signal exaltation, crucial for sensitive analyses, remains one of the main limitations of this technique. The aim of this work is to optimize the exaltation conditions for an optimal SERS signal at two concentrations of norepinephrine (NOR) and spherical gold NPs in suspension. This first work will fix the optimal experimental conditions essential for the development of robust discriminant and quantitative analysis of catecholamine. Two complete 3-factors 3-levels experiment designs were performed at 20 µg.mL-1 and 100 µg.mL-1 norepinephrine concentrations, each experiment being repeated 3 times. The optimization factors were the process of synthesis (variation of the quantity of gold and citrate used for the three synthesis SA, SB and SC) and HCl (0.3 M, 0.5 M, 0.7 M) as well as the volume ratio of NPs and norepinephrine (0.5, 2, 3.5) for SERS acquisition. Spectral acquisitions were performed with a handheld Raman spectrometer with an excitation source at 785 nm. For each sample, 31 acquisitions were realized during 3 s every 8 s. The optimization parameter was the intensity of the characteristic band of norepinephrine at 1280 cm-1. A total of 5,042 spectra were acquired and the pre-treatment selected for all spectra was asymmetric least square combined to a smoothing of Savistsky Golay (ALS - SG). The optimal contact time between norepinephrine and NPs depends on the experimental conditions and was determined for each experiment according to the mean intensity between the three replicates. After interpretation of the experimental designs, the optimal conditions retained were the quantity of gold corresponding to SA and the HCl concentration 0.7 M for the two concentrations of norepinephrine. Indeed, the optimal volume ratio depend on the NOR concentration.
Collapse
Affiliation(s)
- Marion Berge
- Service de Pharmacie, Hôpital européen Georges Pompidou, APHP.Centre Université-Paris, 20 rue Leblanc, 75015 Paris, France; Université Paris-Saclay, Lipides, Systèmes Analytiques et Biologiques, 92296 Châtenay-Malabry, France.
| | - Antoine Dowek
- Service de Pharmacie, Hôpital européen Georges Pompidou, APHP.Centre Université-Paris, 20 rue Leblanc, 75015 Paris, France; Université Paris-Saclay, Lipides, Systèmes Analytiques et Biologiques, 92296 Châtenay-Malabry, France
| | - Patrice Prognon
- Service de Pharmacie, Hôpital européen Georges Pompidou, APHP.Centre Université-Paris, 20 rue Leblanc, 75015 Paris, France; Université Paris-Saclay, Lipides, Systèmes Analytiques et Biologiques, 92296 Châtenay-Malabry, France
| | | | - Ali Tfayli
- Université Paris-Saclay, Lipides, Systèmes Analytiques et Biologiques, 92296 Châtenay-Malabry, France
| | - Laetitia Minh Mai Lê
- Service de Pharmacie, Hôpital européen Georges Pompidou, APHP.Centre Université-Paris, 20 rue Leblanc, 75015 Paris, France; Université Paris-Saclay, Lipides, Systèmes Analytiques et Biologiques, 92296 Châtenay-Malabry, France
| | - Eric Caudron
- Service de Pharmacie, Hôpital européen Georges Pompidou, APHP.Centre Université-Paris, 20 rue Leblanc, 75015 Paris, France; Université Paris-Saclay, Lipides, Systèmes Analytiques et Biologiques, 92296 Châtenay-Malabry, France
| |
Collapse
|
8
|
Švecová M, Volochanskyi O, Dendisová M, Palounek D, Matějka P. Immobilization of green-synthesized silver nanoparticles for micro- and nano-spectroscopic applications: What is the role of used short amino- and thio-linkers and immobilization procedure on the SERS spectra? Spectrochim Acta A Mol Biomol Spectrosc 2021; 247:119142. [PMID: 33189978 DOI: 10.1016/j.saa.2020.119142] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 10/20/2020] [Accepted: 10/24/2020] [Indexed: 06/11/2023]
Abstract
Immobilization of nanoparticles (NPs) is a technique suitable for the preparation of large-scale substrates for surface-enhanced vibrational spectroscopy including micro- and nano-spectroscopic applications. The developed immobilization method provides the enhancing properties of the roughened substrate surface to be maintained for techniques like surface-enhanced Raman scattering (SERS) spectroscopy, however, at the same time the morphology is not limiting for related near-field (scanning probe) techniques. The study is focused on the comparison of different immobilization procedures of Ag nanoparticles and finding the relationship between preparation procedures leading to convenient surface morphology and the quality of the observed signal of the model analyte (riboflavin) using SERS. Amino-linker (3-aminopropyl)trimethoxysilane (APTMS) and four thio-linkers (cysteine, 3-mercaptopropanoic acid, 2-mercaptoethanol, and 2,2'-oxydiethanthiol) using five immobilization procedures at three different temperatures (23 °C, 40 °C, and 70 °C) were compared. Surface morphology was monitored by scanning electron microscopy and atomic force microscopy. The SERS spectra of riboflavin were evaluated in terms of the intensity and the resolution of individual bands. The spectral dataset was inspected by multivariate statistical methods - principal component analysis and discriminant analysis. The evaluation of spectra and statistical models show the influence of the used linker and AgNPs immobilization procedure on the spectral output. APTMS linker is less suitable; much more appropriate are thio-linkers deposited on an evaporated Au layer on a glass slide. The best spectral parameters were obtained for 2,2'-oxydiethanthiol and 23 °C.
Collapse
Affiliation(s)
- Marie Švecová
- Department of Analytical Chemistry, Faculty of Chemical Engineering, University of Chemistry and Technology Prague, Technická 5, Praha 6 166 28, Czech Republic.
| | - Oleksandr Volochanskyi
- Department of Low-Dimensional Systems, J. Heyrovský Institute of Physical Chemistry, Czech Academy of Sciences, v.v.i., Dolejškova 3, Prague 8 18223, Czech Republic; Department of Physical Chemistry, Faculty of Chemical Engineering, University of Chemistry and Technology Prague, Technická 5, Praha 6 166 28, Czech Republic
| | - Marcela Dendisová
- Department of Physical Chemistry, Faculty of Chemical Engineering, University of Chemistry and Technology Prague, Technická 5, Praha 6 166 28, Czech Republic
| | - David Palounek
- Department of Physical Chemistry, Faculty of Chemical Engineering, University of Chemistry and Technology Prague, Technická 5, Praha 6 166 28, Czech Republic
| | - Pavel Matějka
- Department of Physical Chemistry, Faculty of Chemical Engineering, University of Chemistry and Technology Prague, Technická 5, Praha 6 166 28, Czech Republic
| |
Collapse
|
9
|
Baibarac M, Arzumanyan G, Daescu M, Udrescu A, Mamatkulov K. Anisotropic Photoluminescence of Poly(3-hexyl thiophene) and Their Composites with Single-Walled Carbon Nanotubes Highly Separated in Metallic and Semiconducting Tubes. Molecules 2021; 26:E294. [PMID: 33435534 PMCID: PMC7827376 DOI: 10.3390/molecules26020294] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 12/31/2020] [Accepted: 01/05/2021] [Indexed: 11/17/2022] Open
Abstract
In this work, the effect of the single-walled carbon nanotubes (SWNTs) as the mixtures of metallic and semiconducting tubes (M + S-SWNTs) as well as highly separated semiconducting (S-SWNTs) and metallic (M-SWNTs) tubes on the photoluminescence (PL) of poly(3-hexyl thiophene) (P3HT) was reported. Two methods were used to prepare such composites, that is, the chemical interaction of the two constituents and the electrochemical polymerization of the 3-hexyl thiophene onto the rough Au supports modified with carbon nanotubes (CNTs). The measurements of the anisotropic PL of these composites have highlighted a significant diminution of the angle of the binding of the P3HT films electrochemical synthetized onto Au electrodes covered with M + S-SWNTs. This change was attributed to metallic tubes, as was demonstrated using the anisotropic PL measurements carried out on the P3HT/M-SWNTs and P3HT/S-SWNTs composites. Small variations in the angle of the binding were reported in the case of the composites prepared by chemical interaction of the two constituents. The proposed mechanism to explain this behavior took into account the functionalization process of CNTs with P3HT. The experimental arguments of the functionalization process of CNTs with P3HT were shown by the UV-VIS-NIR and FTIR spectroscopy as well as surface-enhanced Raman scattering (SERS). A PL quenching process of P3HT induced both in the presence of S-SWNTs and M-SWNTs was reported, too. This process origins in the various de-excitation pathways which can be developed considering the energy levels diagram of the two constituents of each studied composite.
Collapse
Affiliation(s)
- Mihaela Baibarac
- Optical Processes in Nanostructure Materials Laboratory, National Institute of Materials Physics, Atomistilor Str. 405 A, 77125 Magurele, Romania; (M.D.); (A.U.)
| | - Grigory Arzumanyan
- Neutron Physics, Joint Institute for Nuclear Research Laboratory, 6 Joliot-Curie Street, 141980 Dubna, Russia; (G.A.); (K.M.)
| | - Monica Daescu
- Optical Processes in Nanostructure Materials Laboratory, National Institute of Materials Physics, Atomistilor Str. 405 A, 77125 Magurele, Romania; (M.D.); (A.U.)
| | - Adelina Udrescu
- Optical Processes in Nanostructure Materials Laboratory, National Institute of Materials Physics, Atomistilor Str. 405 A, 77125 Magurele, Romania; (M.D.); (A.U.)
| | - Kahramon Mamatkulov
- Neutron Physics, Joint Institute for Nuclear Research Laboratory, 6 Joliot-Curie Street, 141980 Dubna, Russia; (G.A.); (K.M.)
| |
Collapse
|
10
|
Caprara D, Ripanti F, Capocefalo A, Ceccarini M, Petrillo C, Postorino P. Exploiting SERS sensitivity to monitor DNA aggregation properties. Int J Biol Macromol 2020; 170:88-93. [PMID: 33358955 DOI: 10.1016/j.ijbiomac.2020.12.039] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 11/19/2020] [Accepted: 12/05/2020] [Indexed: 01/11/2023]
Abstract
In the last decades, DNA has been considered far more than the system carrying the essential genetic instructions. Indeed, because of the remarkable properties of the base-pairing specificity and thermoreversibility of the interactions, DNA plays a central role in the design of innovative architectures at the nanoscale. Here, combining complementary DNA strands with a custom-made solution of silver nanoparticles, we realize plasmonic aggregates to exploit the sensitivity of Surface Enhanced Raman Spectroscopy (SERS) for the identification/detection of the distinctive features of DNA hybridization, both in solution and on dried samples. Moreover, SERS allows monitoring the DNA aggregation process by following the temperature variation of a specific spectroscopic marker associated with the Watson-Crick hydrogen bond formation. This temperature-dependent behavior enables us to precisely reconstruct the melting profile of the selected DNA sequences by spectroscopic measurements only.
Collapse
Affiliation(s)
- Debora Caprara
- Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy
| | | | - Angela Capocefalo
- Istituto dei Sistemi Complessi-CNR c/o Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy
| | - Marina Ceccarini
- National Centre for Rare Diseases, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy
| | - Caterina Petrillo
- Physics and Geology Department, University of Perugia, Via A. Pascoli, 06123 Perugia, Italy
| | - Paolo Postorino
- Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy
| |
Collapse
|
11
|
Toulbe N, Stroe MS, Daescu M, Cercel R, Mogos A, Dragoman D, Socol M, Mercioniu I, Baibarac M. Reduced Graphene Oxide Sheets as Inhibitors of the Photochemical Reactions of α-Lipoic Acid in the Presence of Ag and Au Nanoparticles. Nanomaterials (Basel) 2020; 10:E2238. [PMID: 33187318 PMCID: PMC7696841 DOI: 10.3390/nano10112238] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 11/04/2020] [Accepted: 11/07/2020] [Indexed: 12/19/2022]
Abstract
The influence of Ag and Au nanoparticles and reduced graphene oxide (RGO) sheets on the photodegradation of α-lipoic acid (ALA) was determined by UV-VIS spectroscopy. The ALA photodegradation was explained by considering the affinity of thiol groups for the metallic nanoparticles synthesized in the presence of trisodium citrate. The presence of excipients did not induce further changes when ALA interacts with Ag and Au nanoparticles with sizes of 5 and 10 nm by exposure to UV light. Compared to the Raman spectrum of ALA powder, changes in Raman lines' position and relative intensities when ALA has interacted with films obtained from Au nanoparticles with sizes between 5 and 50 nm were significant. These changes were explained by considering the chemical mechanism of surface-enhanced Raman scattering (SERS) spectroscopy. The photodegradation of ALA that had interacted with metallic nanoparticles was inhibited in the presence of RGO sheets.
Collapse
Affiliation(s)
- N’ghaya Toulbe
- National Institute of Materials Physics, Laboratory of Optical Processes in Nanostructure Materials, Atomistilor str. 405 A, 77125 Bucharest, Romania; (N.T.); (M.S.S.); (M.D.); (R.C.); (M.S.)
- Interdisciplinary School of Doctoral Studies, University of Bucharest, Șoseaua Panduri 90, 050663 Bucharest, Romania
| | - Malvina S. Stroe
- National Institute of Materials Physics, Laboratory of Optical Processes in Nanostructure Materials, Atomistilor str. 405 A, 77125 Bucharest, Romania; (N.T.); (M.S.S.); (M.D.); (R.C.); (M.S.)
| | - Monica Daescu
- National Institute of Materials Physics, Laboratory of Optical Processes in Nanostructure Materials, Atomistilor str. 405 A, 77125 Bucharest, Romania; (N.T.); (M.S.S.); (M.D.); (R.C.); (M.S.)
| | - Radu Cercel
- National Institute of Materials Physics, Laboratory of Optical Processes in Nanostructure Materials, Atomistilor str. 405 A, 77125 Bucharest, Romania; (N.T.); (M.S.S.); (M.D.); (R.C.); (M.S.)
| | - Alin Mogos
- S.C. Agilrom Scientific S.R.L., 77190 Bucharest, Romania;
| | - Daniela Dragoman
- Faculty of Physics, University of Bucharest, Șoseaua Panduri 90, București 050663, Bucharest, P.O. Box MG-11, 077125 Bucharest-Magurele, Romania; or
| | - Marcela Socol
- National Institute of Materials Physics, Laboratory of Optical Processes in Nanostructure Materials, Atomistilor str. 405 A, 77125 Bucharest, Romania; (N.T.); (M.S.S.); (M.D.); (R.C.); (M.S.)
| | - Ionel Mercioniu
- National Institute of Materials Physics, Atomic Structures and Defects in Advanced Materials Laboratory, Atomistilor str. 405 A, 77125 Bucharest, Romania;
| | - Mihaela Baibarac
- National Institute of Materials Physics, Laboratory of Optical Processes in Nanostructure Materials, Atomistilor str. 405 A, 77125 Bucharest, Romania; (N.T.); (M.S.S.); (M.D.); (R.C.); (M.S.)
| |
Collapse
|
12
|
Žudytė B, Velička M, Šablinskas V, Lukšienė Ž. Understanding Escherichia coli damages after chlorophyllin-based photosensitization. J Biophotonics 2020; 13:e202000144. [PMID: 32729182 DOI: 10.1002/jbio.202000144] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 06/29/2020] [Accepted: 07/28/2020] [Indexed: 06/11/2023]
Abstract
Pathogenic strains of bacteria are causing various illnesses all around the world and have a major socio-economic impact. Thus, fast- and low-cost methods for the microbial control of foods are needed. One of them might be photosensitization. This study looks deeper into the mechanism of Escherichia coli damage by chlorophyllin-based photosensitization. Fluorimetric data indicate that after 15 minute incubation with chlorophyllin (Chl) (1.5 × 10-5 M Chl) 0.73 ± 0.03 μM of this compound was associated with E. coli cell surface. After photoactivation (405 nm, 6-30 J/cm2 ) significant reduction (88.2%) of bacterial viability was observed. Higher concentration of Chl (5 × 10-4 M Chl) reduced viability of bacteria more than by 98%. Results indicated that reactive oxygen species (ROS) took place in this inactivation. Colloidal surface enhanced Raman scattering (SERS) spectroscopy was employed to detect the molecular changes in the treated bacteria. It was found that Chl-based based photosensitization triggers multiple surface structure changes in E. coli what induce lethal unrepairable damages and inactivation of pathogen.
Collapse
Affiliation(s)
- Bernadeta Žudytė
- Institute of Photonics and Nanotechnology, Vilnius University, Vilnius, Lithuania
| | - Martynas Velička
- Institute of Chemical Physics, Vilnius University, Vilnius, Lithuania
| | - Valdas Šablinskas
- Institute of Chemical Physics, Vilnius University, Vilnius, Lithuania
| | - Živilė Lukšienė
- Institute of Photonics and Nanotechnology, Vilnius University, Vilnius, Lithuania
| |
Collapse
|