1
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Yuan W, Jiao K, Yuan H, Sun H, Lim EG, Mitrovic I, Duan S, Cong S, Yong R, Li F, Song P. Metal-Organic Frameworks/Heterojunction Structures for Surface-Enhanced Raman Scattering with Enhanced Sensitivity and Tailorability. ACS APPLIED MATERIALS & INTERFACES 2024; 16:26374-26385. [PMID: 38716706 PMCID: PMC11129117 DOI: 10.1021/acsami.4c01588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2024] [Revised: 04/04/2024] [Accepted: 04/08/2024] [Indexed: 05/24/2024]
Abstract
Metal-organic frameworks (MOFs), which are composed of crystalline microporous materials with metal ions, have gained considerable interest as promising substrate materials for surface-enhanced Raman scattering (SERS) detection via charge transfer. Research on MOF-based SERS substrates has advanced rapidly because of the MOFs' excellent structural tunability, functionalizable pore interiors, and ultrahigh surface-to-volume ratios. Compared with traditional noble metal SERS plasmons, MOFs exhibit better biocompatibility, ease of operation, and tailorability. However, MOFs cannot produce a sufficient limit of detection (LOD) for ultrasensitive detection, and therefore, developing an ultrasensitive MOF-based SERS substrate is imperative. To the best of our knowledge, this is the first study to develop an MOFs/heterojunction structure as an SERS enhancing material. We report an in situ ZIF-67/Co(OH)2 heterojunction-based nanocellulose paper (nanopaper) plate (in situ ZIF-67 nanoplate) as a device with an LOD of 0.98 nmol/L for Rhodamine 6G and a Raman enhancement of 1.43 × 107, which is 100 times better than that of the pure ZIF-67-based SERS substrate. Further, we extend this structure to other types of MOFs and develop an in situ HKUST-1 nanoplate (with HKUST-1/Cu(OH)2). In addition, we demonstrate that the formation of heterojunctions facilitates efficient photoinduced charge transfer for SERS detection by applying the Mx(OH)y-assisted (where M = Co, Cu, or other metals) MOFs/heterojunction structure. Finally, we successfully demonstrate the application of medicine screening on our nanoplates, specifically for omeprazole. The nanoplates we developed still maintain the tailorability of MOFs and perform high anti-interference ability. Our approach provides customizing options for MOF-based SERS detection, catering to diverse possibilities in future research and applications.
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Affiliation(s)
- Wenwen Yuan
- School
of Advanced Technology, Xi’an Jiaotong
- Liverpool University, Suzhou 215123, China
- Department
of Electrical Engineering and Electronics, University of Liverpool, Liverpool L69 7ZX, U.K.
- State
Key Laboratory for Manufacturing Systems Engineering, Xi’an Jiaotong University, Xi’an 710049, China
| | - Keran Jiao
- School
of Advanced Technology, Xi’an Jiaotong
- Liverpool University, Suzhou 215123, China
- Department
of Electrical Engineering and Electronics, University of Liverpool, Liverpool L69 7ZX, U.K.
| | - Hang Yuan
- School
of Advanced Technology, Xi’an Jiaotong
- Liverpool University, Suzhou 215123, China
| | - Hongzhao Sun
- School
of Physical Science and Technology, Suzhou
University of Science and Technology, Suzhou 215009, China
| | - Eng Gee Lim
- School
of Advanced Technology, Xi’an Jiaotong
- Liverpool University, Suzhou 215123, China
- Department
of Electrical Engineering and Electronics, University of Liverpool, Liverpool L69 7ZX, U.K.
| | - Ivona Mitrovic
- Department
of Electrical Engineering and Electronics, University of Liverpool, Liverpool L69 7ZX, U.K.
| | - Sixuan Duan
- School
of Advanced Technology, Xi’an Jiaotong
- Liverpool University, Suzhou 215123, China
- Department
of Electrical Engineering and Electronics, University of Liverpool, Liverpool L69 7ZX, U.K.
- Key
Laboratory of Bionic Engineering, Jilin
University, Changchun 130022, China
| | - Shan Cong
- School of
Nano-Tech and Nano-Bionics, University of
Science and Technology of China, Suzhou 215123, China
| | - Ruiqi Yong
- School
of Advanced Technology, Xi’an Jiaotong
- Liverpool University, Suzhou 215123, China
| | - Feifan Li
- School of
Nano-Tech and Nano-Bionics, University of
Science and Technology of China, Suzhou 215123, China
| | - Pengfei Song
- School
of Advanced Technology, Xi’an Jiaotong
- Liverpool University, Suzhou 215123, China
- Department
of Electrical Engineering and Electronics, University of Liverpool, Liverpool L69 7ZX, U.K.
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2
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Freibert A, Mendive-Tapia D, Huse N, Vendrell O. Time-Dependent Resonant Inelastic X-ray Scattering of Pyrazine at the Nitrogen K-Edge: A Quantum Dynamics Approach. J Chem Theory Comput 2024; 20:2167-2180. [PMID: 38315564 PMCID: PMC10938531 DOI: 10.1021/acs.jctc.3c01259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 12/31/2023] [Accepted: 01/03/2024] [Indexed: 02/07/2024]
Abstract
We calculate resonant inelastic X-ray scattering spectra of pyrazine at the nitrogen K-edge in the time domain including wavepacket dynamics in both the valence and core-excited state manifolds. Upon resonant excitation, we observe ultrafast non-adiabatic population transfer between core-excited states within the core-hole lifetime, leading to molecular symmetry distortions. Importantly, our time-domain approach inherently contains the ability to manipulate the dynamics of this process by detuning the excitation energy, which effectively shortens the scattering duration. We also explore the impact of pulsed incident X-ray radiation, which provides a foundation for state-of-the-art time-resolved experiments with coherent pulsed light sources.
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Affiliation(s)
- Antonia Freibert
- Department
of Physics, University of Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany
- Theoretical
Chemistry, Institute of Physical Chemistry, Heidelberg University, Im Neuenheimer Feld 229, 69120 Heidelberg, Germany
| | - David Mendive-Tapia
- Theoretical
Chemistry, Institute of Physical Chemistry, Heidelberg University, Im Neuenheimer Feld 229, 69120 Heidelberg, Germany
| | - Nils Huse
- Department
of Physics, University of Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany
| | - Oriol Vendrell
- Theoretical
Chemistry, Institute of Physical Chemistry, Heidelberg University, Im Neuenheimer Feld 229, 69120 Heidelberg, Germany
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3
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Reena VN, Bhagyasree GS, Shilpa T, Aswati Nair R, Nithyaja B. Multifaceted Applications of DNA-Capped Silver Nanoparticles in Photonics, Photocatalysis, Antibacterial Activity, Cytotoxicity, and Bioimaging. J Fluoresc 2024:10.1007/s10895-023-03556-x. [PMID: 38381236 DOI: 10.1007/s10895-023-03556-x] [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: 11/10/2023] [Accepted: 12/13/2023] [Indexed: 02/22/2024]
Abstract
Deoxyribonucleic acid (DNA) capped silver nanoparticles are exceptional nanomaterials, featuring precise size and shape control enabled by DNA as a capping agent. DNA stabilizes these nanoparticles' role leading to uniform structures for diverse applications. These nanoparticles are excellent in photonics and medical applications, enhancing fluorescence and medical imaging. In this study, we explore the multifaceted applications of DNA-capped silver nanoparticles, delving into their optical, photocatalytic, antibacterial, cytotoxic, and bioimaging properties. Employing UV-visible absorption spectroscopy and scanning electron microscopy, we provide an analysis of confirmation of silver nanoparticles. The investigation demonstrates substantial photocatalytic efficacy, photodegradation of methylene blue is higher than rhodamine 6G. The presence of silver nanoparticles enhances the fluorescence of rhodamine 6G doped sol-gel glasses. Furthermore, our findings illustrate significant antibacterial effects, encompassing both Gram-positive and Gram-negative bacteria, with DNA-capped silver nanoparticles exhibiting antibacterial activity. Cytotoxicity assessments on HeLa cells reveal concentration-dependent effects, with an LC50 value of 47 µL. Additionally, the in vitro experiments with HeLa cells suggest the promising utility of DNA-capped silver nanoparticles for bioimaging applications. This comprehensive analysis highlights the multifunctionality and potential of DNA-capped silver nanoparticles, offering promising avenues for further exploration and innovation within various scientific domains, particularly in the realm of nanomaterial research.
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Affiliation(s)
- V N Reena
- Photonic Materials Research Laboratory, Department of Physics, Government College Madappally, Vadakara, Kozhikode, 673102, India.
- University of Calicut, Kozhikode, 673635, India.
- Department of Physics, Government Arts and Science College Calicut, Kozhikode, 673018, India.
| | - G S Bhagyasree
- Photonic Materials Research Laboratory, Department of Physics, Government College Madappally, Vadakara, Kozhikode, 673102, India
- University of Calicut, Kozhikode, 673635, India
| | - T Shilpa
- Department of Biochemistry and Molecular Biology, Central University of Kerala, Kasaragod, 671316, India
| | - R Aswati Nair
- Department of Biochemistry and Molecular Biology, Central University of Kerala, Kasaragod, 671316, India
| | - B Nithyaja
- Photonic Materials Research Laboratory, Department of Physics, Government College Madappally, Vadakara, Kozhikode, 673102, India
- University of Calicut, Kozhikode, 673635, India
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4
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Parmigiani M, Schifano V, Taglietti A, Galinetto P, Albini B. Increasing gold nanostars SERS response with silver shells: a surface-based seed-growth approach. NANOTECHNOLOGY 2024; 35:195603. [PMID: 38306966 DOI: 10.1088/1361-6528/ad25c9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Accepted: 02/02/2024] [Indexed: 02/04/2024]
Abstract
A straightforward method to prepare surface enhanced Raman spectroscopy (SERS) chips containing a monolayer of silver coated gold nanostars (GNS@Ag) grafted on a glass surface is introduced. The synthetic approach is based on a seed growth method performed directly on surface, using GNS as seeds, and involving a green pathway, which only uses silver nitate, ascorbic acid and water, to grow the silver shell. The preparation was optimized to maximize signals obtaining a SERS response of one order of magnitude greater than that from the original GNS based chips, offering in the meantime good homogeneity and acceptable reproducibility. The proposed GNS@Ag SERS chips are able to detect pesticide thiram down to 20 ppb.
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Affiliation(s)
- Miriam Parmigiani
- Dipartimento di Chimica, Sezione di Chimica Generale, Università di Pavia, viale Taramelli, 12-I-27100 Pavia-Italy
| | - Veronica Schifano
- Dipartimento di Chimica, Sezione di Chimica Generale, Università di Pavia, viale Taramelli, 12-I-27100 Pavia-Italy
| | - Angelo Taglietti
- Dipartimento di Chimica, Sezione di Chimica Generale, Università di Pavia, viale Taramelli, 12-I-27100 Pavia-Italy
| | - Pietro Galinetto
- Dipartimento di Fisica, Università di Pavia, Via Bassi 6,-I-27100 Pavia-Italy
| | - Benedetta Albini
- Dipartimento di Fisica, Università di Pavia, Via Bassi 6,-I-27100 Pavia-Italy
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5
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Zeng WW, Luo T, Xu P, Zhou C, Yang X, Ren Z. Vibronic coupling of Rhodamine 6G molecules studied by doubly resonant sum frequency generation spectroscopy with narrowband infrared and broadband visible. J Chem Phys 2024; 160:024705. [PMID: 38205850 DOI: 10.1063/5.0179871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Accepted: 11/30/2023] [Indexed: 01/12/2024] Open
Abstract
Doubly resonant sum frequency generation (DR-SFG) serves as a potent characteristic technique for probing the electronic spectra and vibronic coupling of molecules on surfaces. In this study, we successfully developed a novel infrared (IR)-white light (WL) DR-SFG spectroscopy based on narrowband IR and tunable broadband WL. This novel method was employed to explore the excitation spectrum and vibronic couplings of sub-monolayer Rhodamine 6G molecules. Our findings elucidate that the xanthene skeleton vibrational modes exhibit strong coupling with the S0-S1 electronic transition. Notably, we observed not only the 0-0 transition of the S0-S1 electronic continuum but also the 0-1 transition, a first time observation in the realm of DR-SFG spectroscopy. This advanced DR-SFG spectroscopy methodology facilitates a more sensitive examination of electronic spectra and the coupling between electronic transitions and vibrational modes, heralding a significant advancement in the understanding of molecular interactions on surfaces.
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Affiliation(s)
- Wei-Wang Zeng
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, People's Republic of China
- University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing 100049, People's Republic of China
| | - Ting Luo
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, People's Republic of China
- Research Center for Industries of the Future and School of Engineering, Westlake University, Hangzhou 310030, People's Republic of China
| | - Peng Xu
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, People's Republic of China
- Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, People's Republic of China
| | - Chuanyao Zhou
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, People's Republic of China
| | - Xueming Yang
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, People's Republic of China
- Department of Chemistry, Southern University of Science and Technology, 1088 Xueyuan Road, Guangdong, Shenzhen 518055, People's Republic of China
| | - Zefeng Ren
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, People's Republic of China
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6
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Feng G, Suzuki N, Zhang Q, Li J, Inose T, Taemaitree F, K M MS, Toyouchi S, Fujita Y, Hirai K, Uji-I H. A light-mediated covalently patterned graphene substrate for graphene-enhanced Raman scattering (GERS). Chem Commun (Camb) 2023; 59:11417-11420. [PMID: 37671408 DOI: 10.1039/d3cc03304j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/07/2023]
Abstract
We report covalently patterned graphene with acetic acid as a new potential candidate for graphene-enhanced Raman scattering (GERS). Rhodamine 6G molecules in direct contact with the covalently modified region show an enormous enhancement (∼25 times) compared to the pristine region at 532 nm excitation. The GERS enhancement with respect to the layer thickness of the probed molecule, excitation wavelength, and covalently attached groups is discussed.
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Affiliation(s)
- Guilin Feng
- Research Institute for Electronic Science (RIES) and Division of Information Science and Technology, Graduate School of Information Science and Technology, Hokkaido University, N20W10, Sapporo, Hokkaido 001-0020, Japan.
| | - Nozomu Suzuki
- Department of Chemical Science and Engineering, Graduate School of Engineering, Kobe University, Rokko, Nada, Kobe 657-8501, Japan
| | - Qiang Zhang
- Research Institute for Electronic Science (RIES) and Division of Information Science and Technology, Graduate School of Information Science and Technology, Hokkaido University, N20W10, Sapporo, Hokkaido 001-0020, Japan.
| | - Jiangtao Li
- Research Institute for Electronic Science (RIES) and Division of Information Science and Technology, Graduate School of Information Science and Technology, Hokkaido University, N20W10, Sapporo, Hokkaido 001-0020, Japan.
| | - Tomoko Inose
- Institute for Integrated Cell-Material Science (WPI-iCeMS), Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
| | - Farsai Taemaitree
- Research Institute for Electronic Science (RIES) and Division of Information Science and Technology, Graduate School of Information Science and Technology, Hokkaido University, N20W10, Sapporo, Hokkaido 001-0020, Japan.
- Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University, 2-1-1 Katahira, Aoba-Ward, Sendai 980-8577, Japan
| | - Muhammed Shameem K M
- Department of Chemistry, Division of Molecular Imaging and Photonics, KU Leuven, Celestijnenlaan 200F, Leuven B-3001, Belgium
| | - Shuichi Toyouchi
- Department of Chemistry, Division of Molecular Imaging and Photonics, KU Leuven, Celestijnenlaan 200F, Leuven B-3001, Belgium
- Research Institute for Light-induced Acceleration System (RILACS), Osaka Metropolitan University, Sakai, Osaka 599-8570, Japan
| | - Yasuhiko Fujita
- Research Institute for Sustainable Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), Kagamiyama 3-11-32, Higashi-Hiroshima, Hiroshima 739-0046, Japan
| | - Kenji Hirai
- Research Institute for Electronic Science (RIES) and Division of Information Science and Technology, Graduate School of Information Science and Technology, Hokkaido University, N20W10, Sapporo, Hokkaido 001-0020, Japan.
| | - Hiroshi Uji-I
- Research Institute for Electronic Science (RIES) and Division of Information Science and Technology, Graduate School of Information Science and Technology, Hokkaido University, N20W10, Sapporo, Hokkaido 001-0020, Japan.
- Institute for Integrated Cell-Material Science (WPI-iCeMS), Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
- Department of Chemistry, Division of Molecular Imaging and Photonics, KU Leuven, Celestijnenlaan 200F, Leuven B-3001, Belgium
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7
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SERS performance of cubic-shaped gold nanoparticles for environmental monitoring. RESEARCH ON CHEMICAL INTERMEDIATES 2022. [DOI: 10.1007/s11164-022-04913-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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8
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Dall’Osto G, Corni S. Time Resolved Raman Scattering of Molecules: A Quantum Mechanics Approach with Stochastic Schroedinger Equation. J Phys Chem A 2022; 126:8088-8100. [PMID: 36278928 PMCID: PMC9639147 DOI: 10.1021/acs.jpca.2c05245] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
![]()
Raman scattering is a very powerful tool employed to
characterize
molecular systems. Here we propose a novel theoretical strategy to
calculate the Raman cross-section in time domain, by computing the
cumulative Raman signal emitted during the molecular evolution in
time. Our model is based on a numerical propagation of the vibronic
wave function under the effect of a light pulse of arbitrary shape.
This approach can therefore tackle a variety of experimental setups.
Both resonance and nonresonance Raman scattering can be retrieved,
and also the time-dependent fluorescence emission is computed. The
model has been applied to porphyrin considering both resonance and
nonresonance conditions and varying the incident field duration. Moreover
the effect of the vibrational relaxation, which should be taken into
account when its time scale is similar to that of the Raman emission,
has been included through the stochastic Schroedinger equation approach.
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Affiliation(s)
- Giulia Dall’Osto
- Department of Chemical Sciences, University of Padova, via Marzolo 1, Padova, 35131, Italy
| | - Stefano Corni
- Department of Chemical Sciences, University of Padova, via Marzolo 1, Padova, 35131, Italy
- CNR Institute of Nanoscience, via Campi 213/A, Modena, 41125, Italy
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9
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Parmigiani M, Albini B, Pellegrini G, Genovesi M, De Vita L, Pallavicini P, Dacarro G, Galinetto P, Taglietti A. Surface-Enhanced Raman Spectroscopy Chips Based on Silver Coated Gold Nanostars. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12203609. [PMID: 36296798 PMCID: PMC9609606 DOI: 10.3390/nano12203609] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 10/10/2022] [Accepted: 10/12/2022] [Indexed: 06/12/2023]
Abstract
Surface-enhanced Raman scattering (SERS) is becoming widely used as an analytical tool, and the search for stable and highly responsive SERS substrates able to give ultralow detection of pollutants is a current challenge. In this paper we boosted the SERS response of Gold nanostars (GNS) demonstrating that their coating with a layer of silver having a proper thickness produces a 7-fold increase in SERS signals. Glass supported monolayers of these GNS@Ag were then prepared using simple alcoxyliane chemistry, yielding efficient and reproducible SERS chips, which were tested for the detection of molecules representative of different classes of pollutants. Among them, norfloxacin was detected down to 3 ppb, which is one of the lowest limits of detection obtained with this technique for the analyte.
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Affiliation(s)
- Miriam Parmigiani
- Department of Chemistry, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Benedetta Albini
- Department of Physics, University of Pavia, Via Bassi 6, 27100 Pavia, Italy
| | | | - Marco Genovesi
- Department of Chemistry, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Lorenzo De Vita
- Department of Chemistry, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | | | - Giacomo Dacarro
- Department of Chemistry, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Pietro Galinetto
- Department of Physics, University of Pavia, Via Bassi 6, 27100 Pavia, Italy
| | - Angelo Taglietti
- Department of Chemistry, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
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10
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Ashtari-Jafari S, Jamshidi Z, Visscher L. Efficient simulation of resonance Raman spectra with tight-binding approximations to Density Functional Theory. J Chem Phys 2022; 157:084104. [DOI: 10.1063/5.0107220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Resonance Raman spectroscopy has long been established as one of the most sensitive techniques for detection, structure characterization and probing the excited-state dynamics of biochemical systems. However, the analysis of resonance Raman spectra is much facilitated when measurements are accompanied by Density Functional Theory (DFT) calculations which are expensive for large biomolecules. In this work, resonance Raman spectra are therefore computed with the Density Functional Tight-Binding (DFTB) method in the time-dependent excited-state gradient approximation. To test the accuracy of the tight-binding approximations, this method is first applied to typical resonance Raman benchmark molecules like β-carotene and compared to results obtained with pure and range-separated exchange-correlation (xc) functionals. We then demonstrate the efficiency of the approach by considering a computationally challenging heme variation. Overall, we find that the vibrational frequencies and excited-state properties (energies and gradients) which are needed to simulate the spectra are reasonably accurate and suitable for interpretation of experiments. We can therefore recommend DFTB as a fast computational method to interpret resonance Raman spectra.
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Affiliation(s)
- Sahar Ashtari-Jafari
- Chemistry & Chemical Engineering Research Center of Iran (CCERCI), Iran, Islamic Republic of
| | - Zahra Jamshidi
- Chemistry, Sharif University of Technology, Iran, Islamic Republic of
| | - Lucas Visscher
- Division of Theoretical Chemistry, Vrije Universiteit Amsterdam, Netherlands
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11
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Gómez S, Bottari C, Egidi F, Giovannini T, Rossi B, Cappelli C. Amide Spectral Fingerprints are Hydrogen Bonding-Mediated. J Phys Chem Lett 2022; 13:6200-6207. [PMID: 35770492 PMCID: PMC9272440 DOI: 10.1021/acs.jpclett.2c01277] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The origin of the peculiar amide spectral features of proteins in aqueous solution is investigated, by exploiting a combined theoretical and experimental approach to study UV Resonance Raman (RR) spectra of peptide molecular models, namely N-acetylglycine-N-methylamide (NAGMA) and N-acetylalanine-N-methylamide (NALMA). UVRR spectra are recorded by tuning Synchrotron Radiation at several excitation wavelengths and modeled by using a recently developed multiscale protocol based on a polarizable QM/MM approach. Thanks to the unparalleled agreement between theory and experiment, we demonstrate that specific hydrogen bond interactions, which dominate hydration dynamics around these solutes, play a crucial role in the selective enhancement of amide signals. These results further argue the capability of vibrational spectroscopy methods as valuable tools for refined structural analysis of peptides and proteins in aqueous solution.
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Affiliation(s)
- Sara Gómez
- Scuola
Normale Superiore, Classe di Scienze, Piazza dei Cavalieri 7, 56126, Pisa, Italy
| | - Cettina Bottari
- Elettra
Sincrotrone Trieste S.C.p.A., S. S. 14 Km 163.5 in Area Science Park, I-34149, Trieste, Italy
| | - Franco Egidi
- Scuola
Normale Superiore, Classe di Scienze, Piazza dei Cavalieri 7, 56126, Pisa, Italy
| | - Tommaso Giovannini
- Scuola
Normale Superiore, Classe di Scienze, Piazza dei Cavalieri 7, 56126, Pisa, Italy
| | - Barbara Rossi
- Elettra
Sincrotrone Trieste S.C.p.A., S. S. 14 Km 163.5 in Area Science Park, I-34149, Trieste, Italy
- Department
of Physics, University of Trento, via Sommarive 14, I-38123 Povo, Trento, Italy
| | - Chiara Cappelli
- Scuola
Normale Superiore, Classe di Scienze, Piazza dei Cavalieri 7, 56126, Pisa, Italy
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12
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Raman Activities of Cyano-Ester Quinoidal Oligothiophenes Reveal Their Diradical Character and the Proximity of the Low-Lying Double Exciton State. CHEMISTRY 2022. [DOI: 10.3390/chemistry4020025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Quinoidal oligothiophenes have received considerable attention as interesting platforms with remarkable amphoteric redox behavior associated with their diradical character increasing with the conjugation lengths. In this work, we considered a family of quinoidal oligothiophenes bearing cyano-ester terminal groups and characterized them by UV-Vis-NIR absorption and Raman spectroscopy measurements at different excitation wavelengths. The experimental investigation is complemented by quantum-chemical studies to assess the quality of computed density functional theory (DFT) ground state structures and their influence on predicted Raman intensities. In addition, resonance conditions with the optically active HOMO→LUMO transition as well as with the more elusive state dominated by the doubly excited HOMO,HOMO→LUMO,LUMO configuration, are determined with DFT-MRCI calculations and their contributions to Raman activity enhancement are discussed in terms of computed vibrational Huang–Rhys (HR) factors.
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13
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Kwon YB, Cho SY, Jang H, Kim JH, Kim YK. Lateral Size Effect of Graphene Oxide on Its Surface-Enhanced Raman Scattering Property. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:14205-14213. [PMID: 34806387 DOI: 10.1021/acs.langmuir.1c02670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The lateral size effect of graphene oxide (GO) on surfaced-enhanced Raman scattering (SERS) property is systematically investigated by using size-fractionalized GO. For the size fractionalization without changes of chemical structure, large-sized GO (LGO) and small-sized GO (SGO) are separated from the as-synthesized GO (AGO) by centrifugation and membrane filtration, respectively. The size-fractionalized GO sheets are immobilized on a solid substrate for the parallel comparison of their SERS property. As a result, we find that LGO shows considerably higher SERS property than SGO for typical Raman probes such as rhodamine 6G and crystal violet. Furthermore, the lateral size effect of GO derivatives is consistently observed when they are hybridized with plasmonic silver nanoparticles. These results indicate that LGO is superior to AGO and SGO as a SERS platform, and it is also quantitatively confirmed by calculating their enhancement factor.
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Affiliation(s)
- Yoo-Bin Kwon
- Department of Chemistry, Dongguk University, 30 Pildong-ro, Jung-gu, Seoul 04620, South Korea
| | - Se Youn Cho
- Carbon Composite Research Center, Korea Institute of Science and Technology, 92 Chudong-ro, Bongdong-eup, Wanju-gun, Jeonbuk 55324, South Korea
| | - Hongje Jang
- Department of Chemistry, Kwangwoon University, 20 Gwangwoon-ro, Nowon-gu, Seoul 01897, South Korea
| | - Jae-Ho Kim
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, South Korea
| | - Young-Kwan Kim
- Department of Chemistry, Dongguk University, 30 Pildong-ro, Jung-gu, Seoul 04620, South Korea
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14
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Elias E, Sarathchandran C, Joseph S, Zachariah AK, Thomas J, Devadasan D, G. Souza F, Thomas S. Photoassisted degradation of rhodamine B using poly(
ε
‐caprolactone) based nanocomposites: Mechanistic and kinetic features. J Appl Polym Sci 2021. [DOI: 10.1002/app.50612] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Eldho Elias
- School of Chemical Sciences Mahatma Gandhi University Kottayam Kerala India
| | - C. Sarathchandran
- Department of Science, Amrita School of Engineering Amrita Vishwa Vidyapeetham Chennai India
| | - Saju Joseph
- International and Interuniversity Centre for Nanoscience and Nanotechnology Mahatma Gandhi University Kottayam Kerala India
| | - Ajesh K. Zachariah
- Post Graduate and Research Department of Chemistry Mar Thoma College Tiruvalla Kerala India
| | - Jince Thomas
- International and Interuniversity Centre for Nanoscience and Nanotechnology Mahatma Gandhi University Kottayam Kerala India
| | - Dineep Devadasan
- School of Environmental Sciences Mahatma Gandhi University Kottayam Kerala India
| | - Fernando G. Souza
- Programa de Engenharia Civil, COPPE Universidade Federal de Rio de Janeiro, Centro de Tecnologia – Cidade Universitaria, av. Horacio Macedo Rio de Janeiro Brazil
| | - Sabu Thomas
- School of Chemical Sciences Mahatma Gandhi University Kottayam Kerala India
- International and Interuniversity Centre for Nanoscience and Nanotechnology Mahatma Gandhi University Kottayam Kerala India
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15
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Limaye MV, Pramanik M, Singh SB, Paik GR, Singh P. Application of Delafossite AgFeO
2
Nanoparticles as SERS Substrate and Antimicrobial Agent. ChemistrySelect 2021. [DOI: 10.1002/slct.202004445] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Mukta V. Limaye
- Department of Physics Indian Institute of Science Education & Research Berhampur 760010 Odisha India
| | - Monidipa Pramanik
- Department of Physics Indian Institute of Science Education & Research Berhampur 760010 Odisha India
| | - Shashi B. Singh
- Department of Physics Indian Institute of Science Education & Research Berhampur 760010 Odisha India
| | - Gyan Ranjan Paik
- Department of Biological Sciences Indian Institute of Science Education & Research Berhampur 760010 Odisha India
| | - Prabhat Singh
- Department of Biological Sciences Indian Institute of Science Education & Research Berhampur 760010 Odisha India
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16
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Busson B. Doubly resonant SFG and DFG spectroscopies: An analytic model for data analysis including distorted and rotated vibronic levels. I. Theory. J Chem Phys 2020; 153:174701. [DOI: 10.1063/5.0022760] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Affiliation(s)
- Bertrand Busson
- Université Paris-Saclay, CNRS, Institut de Chimie Physique, UMR 8000, 91405 Orsay, France
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17
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Busson B. Doubly resonant SFG and DFG spectroscopies: An analytic model for data analysis including distorted and rotated vibronic levels. II. Applications. J Chem Phys 2020; 153:174702. [DOI: 10.1063/5.0022761] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Affiliation(s)
- Bertrand Busson
- Université Paris-Saclay, CNRS, Institut de Chimie Physique, UMR 8000, 91405 Orsay, France
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18
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Li P, Zhu L, Ma C, Zhang L, Guo L, Liu Y, Ma H, Zhao B. Plasmonic Molybdenum Tungsten Oxide Hybrid with Surface-Enhanced Raman Scattering Comparable to that of Noble Metals. ACS APPLIED MATERIALS & INTERFACES 2020; 12:19153-19160. [PMID: 32233413 DOI: 10.1021/acsami.0c00220] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The surface-enhanced Raman scattering (SERS) research is in full swing owing to its high sensitivity and high selectivity; however, the substrates with superexcellent performance for SERS are largely confined to noble metals (Au, Ag, etc.). Although the SERS active substrates have been extended to semiconductors and transition metals, it is frustrating that their sensitivities are insufficient for widespread practical application. Here, we report the plasmonic molybdenum tungsten oxide (MWO) hybrid nanomaterials (NMs), which can be used as high-performance substrates with SERS comparable to that of noble metals. MWO NMs can achieve the trace detection of rhodamine 6G (R6G), basic fuchsin (BF), and oil red O (ORO). The detection limit concentration for R6G is 10-8 M, with the maximum enhancement factor of up to 6.09 × 107. The superexcellent SERS performance was attributed to the cooperative enhancement effect of electromagnetic (EM) enhancement mechanism and the charge transfer (CT) mechanism. Moreover, in the proposed system, the EM and CT contribution was distinguished by employing poly(vinylpyrrolidone) (PVP), which serves as a barrier layer to prevent the CT process from MWO NMs to R6G. These remarkable MWO NMs can be obtained with a facile method, and this research provides new insight into non-noble metal based SERS substrate.
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Affiliation(s)
- Peng Li
- Stake Key Laboratory of Supramolecular Structure and Materials, Jilin University, 2699 Qianjin Street, Changchun 130012, China
| | - Lin Zhu
- Stake Key Laboratory of Supramolecular Structure and Materials, Jilin University, 2699 Qianjin Street, Changchun 130012, China
| | - Chao Ma
- Stake Key Laboratory of Supramolecular Structure and Materials, Jilin University, 2699 Qianjin Street, Changchun 130012, China
- Institute of Theoretical Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130023, China
| | - Lixia Zhang
- Stake Key Laboratory of Supramolecular Structure and Materials, Jilin University, 2699 Qianjin Street, Changchun 130012, China
- Institute of Theoretical Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130023, China
| | - Lin Guo
- Stake Key Laboratory of Supramolecular Structure and Materials, Jilin University, 2699 Qianjin Street, Changchun 130012, China
| | - Yawen Liu
- Stake Key Laboratory of Supramolecular Structure and Materials, Jilin University, 2699 Qianjin Street, Changchun 130012, China
| | - Hao Ma
- Stake Key Laboratory of Supramolecular Structure and Materials, Jilin University, 2699 Qianjin Street, Changchun 130012, China
| | - Bing Zhao
- Stake Key Laboratory of Supramolecular Structure and Materials, Jilin University, 2699 Qianjin Street, Changchun 130012, China
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19
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Di Remigio R, Giovannini T, Ambrosetti M, Cappelli C, Frediani L. Fully Polarizable QM/Fluctuating Charge Approach to Two-Photon Absorption of Aqueous Solutions. J Chem Theory Comput 2019; 15:4056-4068. [DOI: 10.1021/acs.jctc.9b00305] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Roberto Di Remigio
- Hylleraas Centre for Quantum Molecular Sciences, Department of Chemistry, University of Tromsø - The Arctic University of Norway, N-9037 Tromsø, Norway
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Tommaso Giovannini
- Department of Chemistry, Norwegian University of Science and Technology, 7491 Trondheim, Norway
| | | | - Chiara Cappelli
- Scuola Normale Superiore, Piazza dei Cavalieri 7, 56126 Pisa, Italy
| | - Luca Frediani
- Hylleraas Centre for Quantum Molecular Sciences, Department of Chemistry, University of Tromsø - The Arctic University of Norway, N-9037 Tromsø, Norway
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20
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Mohammadi A, Nicholls DL, Docoslis A. Improving the Surface-Enhanced Raman Scattering Performance of Silver Nanodendritic Substrates with Sprayed-On Graphene-Based Coatings. SENSORS (BASEL, SWITZERLAND) 2018; 18:E3404. [PMID: 30314312 PMCID: PMC6209902 DOI: 10.3390/s18103404] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 10/03/2018] [Accepted: 10/06/2018] [Indexed: 01/16/2023]
Abstract
This study examines the improvements in surface-enhanced Raman scattering (SERS) performance achieved when silver nanodendritic structures are coated with various graphene-based materials, namely graphene oxide (GO), reduced graphene oxide (rGO), and graphene nanoplatelets (GNPs). The tests are performed on our unique SERS-active substrates, prepared on the surface of planar microelectrode chips using an electric field-guided Ag nanoparticle assembly process. The graphene-based materials are introduced into the substrate by means of an in-house spray-coating technique. The SERS enhancement effect of each coating is examined as a function of spray nozzle passes (N) and optimal values are identified for each coating type. The enhancements found for GO, rGO, and GNP (6⁻9 graphene layers thick) coatings are 2.3 (N = 25), 2.5 (N = 5), and 1.6 (N = 1), respectively. Additionally, in comparison with their uncoated counterparts, substrates coated with rGO (N = 5) are shown to enhance the intensity of the methamphetamine (5 ppb) spectrum in artificial saliva by approximately 3-fold. Overall, it can be concluded that the introduction of GO or rGO to the SERS substrate using spray-coating, a simple and also scalable method, can produce substantial SERS performance enhancement.
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Affiliation(s)
- Aida Mohammadi
- Department of Chemical Engineering, Queen's University, Kingston, ON K7L3N6, Canada.
| | | | - Aristides Docoslis
- Department of Chemical Engineering, Queen's University, Kingston, ON K7L3N6, Canada.
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21
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Honma K. Laser-induced- and dispersed-fluorescence studies of rhodamine 590 and 640 ions formed by electrospray ionization: observation of fluorescence from highly-excited vibrational levels of S1 states. Phys Chem Chem Phys 2018; 20:26859-26869. [DOI: 10.1039/c8cp04067b] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Fluorescence spectra of vibrationally very “hot” S1 states were observed for the first time under gas phase conditions.
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Affiliation(s)
- Kenji Honma
- Graduate School of Material Science
- University of Hyogo
- Hyogo
- Japan
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22
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Sun YS, Lin CF, Luo ST, Su CY. Block-Copolymer-Templated Hierarchical Porous Carbon Nanostructures with Nitrogen-Rich Functional Groups for Molecular Sensing. ACS APPLIED MATERIALS & INTERFACES 2017; 9:31235-31244. [PMID: 28319361 DOI: 10.1021/acsami.6b15317] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The self-assembly of a block copolymer offers access to micellar nanodomains with tunable dimensions and structural diversity through control of such molecular parameters as the volume fraction and molecular mass. We fabricated hierarchical porous carbon (HPC) nanostructures with bundles of aggregated nanospheres and with nitrogen-rich functional groups through pyrolysis of diblock copolymer micelles in multiple layers. The resultant HPC nanostructures with a considerable specific surface area serve as an excellent substrate for surface-enhanced Raman spectroscopy (SERS), coupled with fluorescence quenching, for molecular sensing of physically adsorbed Rhodamine 6G. The abundant nitrogen atoms terminating on the surface of HPC nanostructures play a critical role in promoting a large Raman enhancement generated via a chemical mechanism. Most importantly, the observed enhancement factors show a clear dependence on the mesoscale porosity within HPC nanostructures, indicating that the chemical enhancement can be steadily tuned with control over the interfacial areas as a function of the nanosphere size. The unique architecture of HPC nanostructures based on the construction of a building block of a well-defined network of core-shell nanospheres provides a new design strategy for fabricating SERS substrates.
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Affiliation(s)
- Ya-Sen Sun
- Department of Chemical and Materials Engineering and ‡Graduate Institute of Energy Engineering, National Central University , Taoyuan 32001, Taiwan
| | - Chien-Fu Lin
- Department of Chemical and Materials Engineering and ‡Graduate Institute of Energy Engineering, National Central University , Taoyuan 32001, Taiwan
| | - Shih-Ting Luo
- Department of Chemical and Materials Engineering and ‡Graduate Institute of Energy Engineering, National Central University , Taoyuan 32001, Taiwan
| | - Ching-Yuan Su
- Department of Chemical and Materials Engineering and ‡Graduate Institute of Energy Engineering, National Central University , Taoyuan 32001, Taiwan
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23
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A general method to fine-tune fluorophores for live-cell and in vivo imaging. Nat Methods 2017; 14:987-994. [PMID: 28869757 PMCID: PMC5621985 DOI: 10.1038/nmeth.4403] [Citation(s) in RCA: 387] [Impact Index Per Article: 55.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2017] [Accepted: 07/25/2017] [Indexed: 12/18/2022]
Abstract
Pushing the frontier of fluorescence microscopy requires the design of enhanced fluorophores with finely tuned properties. We recently discovered that incorporation of four-membered azetidine rings into classic fluorophore structures elicits substantial increases in brightness and photostability, resulting in the ‘Janelia Fluor’ (JF) series of dyes. Here, we refine and extend this strategy, showing that incorporation of 3-substituted azetidine groups allows rational tuning of the spectral and chemical properties with unprecedented precision. This strategy yields a palette of new fluorescent and fluorogenic labels with excitation ranging from blue to the far-red with utility in cells, tissue, and animals.
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24
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Staniszewska M, Kupfer S, Łabuda M, Guthmuller J. Theoretical Assessment of Excited State Gradients and Resonance Raman Intensities for the Azobenzene Molecule. J Chem Theory Comput 2017; 13:1263-1274. [PMID: 28118003 DOI: 10.1021/acs.jctc.6b00966] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The ground state geometries and vibrational frequencies as well as the excitation energies and excited state gradients of the S1(nπ*) and S2(ππ*) states of trans- and cis-azobenzene are investigated by several DFT methods, namely B3LYP, PBE, M06-2X, CAM-B3LYP, and ωB97X. Excited state properties and in particular gradients are also assessed using the wave function based methods EOM-CCSD and RASPT2/RASSCF. Comparison with experimental data shows that the B3LYP functional gives the most accurate results for the ground state geometry and vibrational frequencies. The analysis of the vertical excitation energies reveals that the RASPT2 approach provides the most accurate excitation energies with deviations of the order of 0.1 eV. Among the TDDFT methods, the CAM-B3LYP functional shows the best performance on the excitation energies. By assessing the excited state gradients with respect to the reference RASPT2 data, the most accurate gradients are obtained with B3LYP, whereas other functionals as well as the EOM-CCSD and RASSCF calculations give less consistent results. Overall, despite the tendency of B3LYP to underestimate the excitation energies, this functional provides the most balanced description of both ground and excited state properties for both isomers of azobenzene in the Franck-Condon region.
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Affiliation(s)
- Magdalena Staniszewska
- Faculty of Applied Physics and Mathematics, Gdańsk University of Technology , Narutowicza 11/12, 80-233 Gdańsk, Poland
| | - Stephan Kupfer
- Institute of Physical Chemistry, Friedrich Schiller University Jena , Helmholtzweg 4, 07-743 Jena, Germany
| | - Marta Łabuda
- Faculty of Applied Physics and Mathematics, Gdańsk University of Technology , Narutowicza 11/12, 80-233 Gdańsk, Poland
| | - Julien Guthmuller
- Faculty of Applied Physics and Mathematics, Gdańsk University of Technology , Narutowicza 11/12, 80-233 Gdańsk, Poland
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25
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Ma Y, Knecht S, Reiher M. Multiconfigurational Effects in Theoretical Resonance Raman Spectra. Chemphyschem 2017; 18:384-393. [PMID: 27933695 PMCID: PMC5324552 DOI: 10.1002/cphc.201601072] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2016] [Revised: 12/06/2016] [Indexed: 01/26/2023]
Abstract
We analyze resonance Raman spectra of the nucleobase uracil in the short‐time approximation calculated with multiconfigurational methods. We discuss the importance of static electron correlation by means of density‐matrix renormalization group self‐consistent field (DMRG‐SCF) calculations. Our DMRG‐SCF results reveal that a minimal active orbital space that leads to a qualitatively correct description of the resonance Raman spectrum of uracil should encompass parts of the σ/σ* bonding/anti‐bonding orbitals of the pyrimidine ring. We trace these findings back to the considerable entanglement between the σ/σ* bonding/anti‐bonding as well as valence π/π* orbitals in the excited‐state electronic structure of uracil, which indicates non‐negligible non‐dynamical correlation effects that are less pronounced in the electronic ground state.
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Affiliation(s)
- Yingjin Ma
- ETH Zürich, Laboratorium für Physikalische Chemie, Vladimir-Prelog-Weg 2, 8093, Zürich, Switzerland
| | - Stefan Knecht
- ETH Zürich, Laboratorium für Physikalische Chemie, Vladimir-Prelog-Weg 2, 8093, Zürich, Switzerland
| | - Markus Reiher
- ETH Zürich, Laboratorium für Physikalische Chemie, Vladimir-Prelog-Weg 2, 8093, Zürich, Switzerland
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26
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Makhal K, Goswami D. pH Effect on Two-Photon Cross Section of Highly Fluorescent Dyes Using Femtosecond Two-Photon Induced Fluorescence. J Fluoresc 2016; 27:339-356. [DOI: 10.1007/s10895-016-1963-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Accepted: 10/19/2016] [Indexed: 01/02/2023]
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27
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Kulesza AJ, Titov E, Daly S, Włodarczyk R, Megow J, Saalfrank P, Choi CM, MacAleese L, Antoine R, Dugourd P. Excited States of Xanthene Analogues: Photofragmentation and Calculations by CC2 and Time-Dependent Density Functional Theory. Chemphyschem 2016; 17:3129-3138. [DOI: 10.1002/cphc.201600650] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Alexander Jan Kulesza
- Univ Lyon; Université Claude Bernard Lyon 1, CNRS, Institut Lumière Matière; F-69622 Lyon France
| | - Evgenii Titov
- Universität Potsdam, Institut für Chemie; Karl-Liebknecht-Straße 24-25, Haus 25 D-14476 Potsdam Germany
| | - Steven Daly
- Univ Lyon; Université Claude Bernard Lyon 1, CNRS, Institut Lumière Matière; F-69622 Lyon France
| | - Radosław Włodarczyk
- Universität Potsdam, Institut für Chemie; Karl-Liebknecht-Straße 24-25, Haus 25 D-14476 Potsdam Germany
| | - Jörg Megow
- Universität Potsdam, Institut für Chemie; Karl-Liebknecht-Straße 24-25, Haus 25 D-14476 Potsdam Germany
| | - Peter Saalfrank
- Universität Potsdam, Institut für Chemie; Karl-Liebknecht-Straße 24-25, Haus 25 D-14476 Potsdam Germany
| | - Chang Min Choi
- Univ Lyon; Université Claude Bernard Lyon 1, CNRS, Institut Lumière Matière; F-69622 Lyon France
| | - Luke MacAleese
- Univ Lyon; Université Claude Bernard Lyon 1, CNRS, Institut Lumière Matière; F-69622 Lyon France
| | - Rodolphe Antoine
- Univ Lyon; Université Claude Bernard Lyon 1, CNRS, Institut Lumière Matière; F-69622 Lyon France
| | - Philippe Dugourd
- Univ Lyon; Université Claude Bernard Lyon 1, CNRS, Institut Lumière Matière; F-69622 Lyon France
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28
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The Effects of Heteroatoms Si and S on Tuning the Optical Properties of Rhodamine- and Fluorescein-Based Fluorescence Probes: A Theoretical Analysis. Chemphyschem 2016; 17:3139-3145. [DOI: 10.1002/cphc.201600620] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2016] [Indexed: 12/12/2022]
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29
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Santoro F, Jacquemin D. Going beyond the vertical approximation with time-dependent density functional theory. WILEY INTERDISCIPLINARY REVIEWS-COMPUTATIONAL MOLECULAR SCIENCE 2016. [DOI: 10.1002/wcms.1260] [Citation(s) in RCA: 121] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Fabrizio Santoro
- CNR-Consiglio Nazionale delle Ricerche; Istituto di Chimica dei Composti OrganoMetallici (ICCOM-CNR); Pisa Italy
| | - Denis Jacquemin
- CEISAM, UMR CNRS 6230; Université de Nantes; Nantes France
- Institut Universitaire de France; Paris France
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30
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Guthmuller J. Comparison of simplified sum-over-state expressions to calculate resonance Raman intensities including Franck-Condon and Herzberg-Teller effects. J Chem Phys 2016; 144:064106. [DOI: 10.1063/1.4941449] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Affiliation(s)
- Julien Guthmuller
- Faculty of Applied Physics and Mathematics, Gdańsk University of Technology, Narutowicza 11/12, 80-233 Gdańsk, Poland
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31
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Zhao W, Li B, Xu S, Zhao Q. DFT/TD-DFT study of the structural and spectral properties of two forms of Rhodamine B. JOURNAL OF THEORETICAL & COMPUTATIONAL CHEMISTRY 2015. [DOI: 10.1142/s0219633615500303] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The absorption wavelengths of the two forms of Rhodamine B, cation and zwitterion, were investigated by Time-Dependent Density Functional Theory (TD-DFT) in combination with polarizable continuum model. The redshift in absorption spectrum of cation relative to zwitterion is attributed to strong inductive effect of carboxyphenyl group and weak electrostatic repulsion between xanthene ring and carboxyphenyl group. The absorption wavelengths of cation and zwitterion decrease linearly with increase of solvent polarity in normal alcohols since in high polar solvents electrostatic repulsion between xanthene ring and carboxyphenyl group increases and affects xanthene π conjugation system. The absorption wavelengths in water and formamide show a deviation from linear relationship because large dielectric constant hinders electrostatic repulsion between carboxyphenyl group and xanthene π system. The hydrogen bonds affect absorption wavelengths because hydrogen bonds could affect conjugation between amino N atoms and xanthene π system or electrostatic repulsion between carboxyphenyl group and xanthene ring. These results indicate electrostatic repulsion between carboxyphenyl group and xanthene ring plays a big role in determining absorption spectrum of Rhodamine B.
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Affiliation(s)
- Wenwei Zhao
- School of Chemistry and Chemical Engineering, Linyi University, Linyi, Shandong 276005, P. R. China
| | - Baohui Li
- School of Chemistry and Chemical Engineering, Linyi University, Linyi, Shandong 276005, P. R. China
| | - Shuyong Xu
- School of Chemistry and Chemical Engineering, Linyi University, Linyi, Shandong 276005, P. R. China
| | - Qiang Zhao
- School of Chemistry and Chemical Engineering, Linyi University, Linyi, Shandong 276005, P. R. China
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32
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Baiardi A, Bloino J, Barone V. A general time-dependent route to resonance-Raman spectroscopy including Franck-Condon, Herzberg-Teller and Duschinsky effects. J Chem Phys 2014; 141:114108. [PMID: 25240346 PMCID: PMC4608049 DOI: 10.1063/1.4895534] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We present a new formulation of the time-dependent theory of Resonance-Raman spectroscopy (TD-RR). Particular attention has been devoted to the generality of the framework and to the possibility of including different effects (Duschinsky mixing, Herzberg-Teller contributions). Furthermore, the effects of different harmonic models for the intermediate electronic state are also investigated. Thanks to the implementation of the TD-RR procedure within a general-purpose quantum-chemistry program, both solvation and leading anharmonicity effects have been included in an effective way. The reliability and stability of our TD-RR implementation are validated against our previously proposed and well-tested time-independent procedure. Practical applications are illustrated with some closed- and open-shell medium-size molecules (anthracene, phenoxyl radical, benzyl radical) and the simulated spectra are compared to the experimental results. More complex and larger systems, not limited to organic compounds, can be also studied, as shown for the case of Tris(bipyridine)ruthenium(II) chloride.
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Affiliation(s)
- Alberto Baiardi
- Scuola Normale Superiore, piazza dei Cavalieri 7, I-56126 Pisa, Italy
| | - Julien Bloino
- Scuola Normale Superiore, piazza dei Cavalieri 7, I-56126 Pisa, Italy
| | - Vincenzo Barone
- Scuola Normale Superiore, piazza dei Cavalieri 7, I-56126 Pisa, Italy
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33
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Modeling of charge transfer processes to understand photophysical signatures: The case of Rhodamine 110. Chem Phys Lett 2014. [DOI: 10.1016/j.cplett.2014.07.023] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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34
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Egidi F, Bloino J, Cappelli C, Barone V. A robust and effective time-independent route to the calculation of Resonance Raman spectra of large molecules in condensed phases with the inclusion of Duschinsky, Herzberg-Teller, anharmonic, and environmental effects. J Chem Theory Comput 2013; 10:346-363. [PMID: 26550003 DOI: 10.1021/ct400932e] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
We present an effective time-independent implementation to model vibrational resonance Raman (RR) spectra of medium-large molecular systems with the inclusion of Franck-Condon (FC) and Herzberg-Teller (HT) effects and a full account of the possible differences between the harmonic potential energy surfaces of the ground and resonant electronic states. Thanks to a number of algorithmic improvements and very effective parallelization, the full computations of fundamentals, overtones, and combination bands can be routinely performed for large systems possibly involving more than two electronic states. In order to improve the accuracy of the results, an effective inclusion of the leading anharmonic effects is also possible, together with environmental contributions under different solvation regimes. Reduced-dimensionality approaches can further enlarge the range of applications of this new tool. Applications to imidazole, pyrene, and chlorophyll a1 in solution are reported, as well as comparisons with available experimental data.
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Affiliation(s)
- Franco Egidi
- Scuola Normale Superiore, Piazza dei Cavalieri 7, 56126 Pisa, Italy
| | - Julien Bloino
- Scuola Normale Superiore, Piazza dei Cavalieri 7, 56126 Pisa, Italy ; Consiglio Nazionale delle Ricerche, Istituto di Chimica dei Composti Organometallici, UOS di Pisa, Via G. Moruzzi 1, 56124 Pisa, Italy
| | - Chiara Cappelli
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, via Risorgimento 35, 56126 Pisa, Italy
| | - Vincenzo Barone
- Scuola Normale Superiore, Piazza dei Cavalieri 7, 56126 Pisa, Italy
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35
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Silverstein DW, Govind N, van Dam HJJ, Jensen L. Simulating One-Photon Absorption and Resonance Raman Scattering Spectra Using Analytical Excited State Energy Gradients within Time-Dependent Density Functional Theory. J Chem Theory Comput 2013; 9:5490-503. [DOI: 10.1021/ct4007772] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Daniel W. Silverstein
- Department
of Chemistry, The Pennsylvania State University, 104 Chemistry Building, University Park, Pennsylvania 16802, United States
| | - Niranjan Govind
- William
R. Wiley Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, 902 Battelle Boulevard, Richland, Washington 99352, United States
| | - Hubertus J. J. van Dam
- William
R. Wiley Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, 902 Battelle Boulevard, Richland, Washington 99352, United States
| | - Lasse Jensen
- Department
of Chemistry, The Pennsylvania State University, 104 Chemistry Building, University Park, Pennsylvania 16802, United States
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36
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Zhang XF, Liu SP, Shao XN. Noncovalent binding of xanthene and phthalocyanine dyes with graphene sheets: the effect of the molecular structure revealed by a photophysical study. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 113:92-99. [PMID: 23714186 DOI: 10.1016/j.saa.2013.04.066] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2012] [Revised: 03/01/2013] [Accepted: 04/14/2013] [Indexed: 06/02/2023]
Abstract
The fluorescence and absorption properties of several xanthene and phthalocyanine dyes were measured in the presence and absence of chemically derived graphene (CDG) sheets. The interaction of pyronine Y (PYY) with graphene sheets was compared with that of rhodamine 6G (R6G) to reveal the effect of the molecular structure. Although the presence of the perpendicular benzene moiety in a R6G or phthalocyanine molecule does cause the difficulty for forming dye-CDG complex and make CDG less efficient in quenching the fluorescence intensity and shortening the fluorescence lifetime, it does not affect the band position of charge transfer absorption, suggesting that no molecular shape change occurred in a dye molecule caused by the interaction with CDG sheets. The spectroscopic and thermodynamic data indicated that the dye-CDG binding is of charge transfer nature, while the dynamic fluorescence quenching is due to photoinduced energy and electron transfer.
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Affiliation(s)
- Xian-Fu Zhang
- Chemistry Department, Hebei Normal University of Science and Technology, Qinhuangdao, Hebei Province 066004, China.
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37
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Avila Ferrer FJ, Barone V, Cappelli C, Santoro F. Duschinsky, Herzberg–Teller, and Multiple Electronic Resonance Interferential Effects in Resonance Raman Spectra and Excitation Profiles. The Case of Pyrene. J Chem Theory Comput 2013; 9:3597-611. [DOI: 10.1021/ct400197y] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Francisco J. Avila Ferrer
- Consiglio Nazionale delle Ricerche
− CNR, Istituto di Chimica dei Composti Organo Metallici (ICCOM-CNR), UOS di Pisa, Area della Ricerca, Via G. Moruzzi 1,
I-56124 Pisa, Italy
- Physical Chemistry, Faculty
of Science, University of Málaga, Málaga 29071, Spain
| | - Vincenzo Barone
- Scuola Normale Superiore di Pisa, Piazza dei Cavalieri 7, I-56126 Pisa,
Italy
| | - Chiara Cappelli
- Scuola Normale Superiore di Pisa, Piazza dei Cavalieri 7, I-56126 Pisa,
Italy
- Dipartimento di Chimica
e Chimica
Industriale dell’Università di Pisa, Via Risorgimento 35, I-56126 Pisa, Italy
| | - Fabrizio Santoro
- Consiglio Nazionale delle Ricerche
− CNR, Istituto di Chimica dei Composti Organo Metallici (ICCOM-CNR), UOS di Pisa, Area della Ricerca, Via G. Moruzzi 1,
I-56124 Pisa, Italy
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38
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Thomas M, Latorre F, Marquetand P. Resonance Raman spectra of ortho-nitrophenol calculated by real-time time-dependent density functional theory. J Chem Phys 2013; 138:044101. [DOI: 10.1063/1.4776218] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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39
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Greisch JF, Harding ME, Kordel M, Klopper W, Kappes MM, Schooss D. Intrinsic fluorescence properties of rhodamine cations in gas-phase: triplet lifetimes and dispersed fluorescence spectra. Phys Chem Chem Phys 2013; 15:8162-70. [DOI: 10.1039/c3cp44362k] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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40
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Wächtler M, Guthmuller J, González L, Dietzek B. Analysis and characterization of coordination compounds by resonance Raman spectroscopy. Coord Chem Rev 2012. [DOI: 10.1016/j.ccr.2012.02.004] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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41
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Savarese M, Aliberti A, De Santo I, Battista E, Causa F, Netti PA, Rega N. Fluorescence Lifetimes and Quantum Yields of Rhodamine Derivatives: New Insights from Theory and Experiment. J Phys Chem A 2012; 116:7491-7. [DOI: 10.1021/jp3021485] [Citation(s) in RCA: 92] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Marika Savarese
- Dipartimento di
Scienze Chimiche, Università di Napoli ‘Federico II’, Complesso Universitario
di M.S.Angelo, via Cintia, I-80126 Napoli, Italy
- Center for Advanced Biomaterials
for Health Care@CRIB, Istituto Italiano di Tecnologia, Largo Barsanti e Matteucci 53, I-80125 Napoli, Italy
| | - Anna Aliberti
- Center for Advanced Biomaterials
for Health Care@CRIB, Istituto Italiano di Tecnologia, Largo Barsanti e Matteucci 53, I-80125 Napoli, Italy
| | - Ilaria De Santo
- Center for Advanced Biomaterials
for Health Care@CRIB, Istituto Italiano di Tecnologia, Largo Barsanti e Matteucci 53, I-80125 Napoli, Italy
| | - Edmondo Battista
- Center for Advanced Biomaterials
for Health Care@CRIB, Istituto Italiano di Tecnologia, Largo Barsanti e Matteucci 53, I-80125 Napoli, Italy
| | - Filippo Causa
- Center for Advanced Biomaterials
for Health Care@CRIB, Istituto Italiano di Tecnologia, Largo Barsanti e Matteucci 53, I-80125 Napoli, Italy
| | - Paolo A. Netti
- Center for Advanced Biomaterials
for Health Care@CRIB, Istituto Italiano di Tecnologia, Largo Barsanti e Matteucci 53, I-80125 Napoli, Italy
| | - Nadia Rega
- Dipartimento di
Scienze Chimiche, Università di Napoli ‘Federico II’, Complesso Universitario
di M.S.Angelo, via Cintia, I-80126 Napoli, Italy
- Center for Advanced Biomaterials
for Health Care@CRIB, Istituto Italiano di Tecnologia, Largo Barsanti e Matteucci 53, I-80125 Napoli, Italy
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42
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Silverstein DW, Jensen L. Vibronic coupling simulations for linear and nonlinear optical processes: Theory. J Chem Phys 2012; 136:064111. [DOI: 10.1063/1.3684236] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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43
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Santoro F, Cappelli C, Barone V. Effective Time-Independent Calculations of Vibrational Resonance Raman Spectra of Isolated and Solvated Molecules Including Duschinsky and Herzberg–Teller Effects. J Chem Theory Comput 2011; 7:1824-39. [DOI: 10.1021/ct200054w] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Fabrizio Santoro
- CNR−Consiglio Nazionale delle Ricerche, Istituto di Chimica dei Composti Organo Metallici (ICCOM-CNR), UOS di Pisa, Area della Ricerca, via G. Moruzzi 1, I-56124 Pisa, Italy
| | - Chiara Cappelli
- CNR−Consiglio Nazionale delle Ricerche, Istituto di Chimica dei Composti Organo Metallici (ICCOM-CNR), UOS di Pisa, Area della Ricerca, via G. Moruzzi 1, I-56124 Pisa, Italy
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, via Risorgimento, 35 I-56126 Pisa, Italy
| | - Vincenzo Barone
- CNR−Consiglio Nazionale delle Ricerche, Istituto di Chimica dei Composti Organo Metallici (ICCOM-CNR), UOS di Pisa, Area della Ricerca, via G. Moruzzi 1, I-56124 Pisa, Italy
- Scuola Normale Superiore, Piazza dei Cavalieri, 7 I-56126 Pisa, Italy
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44
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Sun S, Wu P. Competitive surface-enhanced Raman scattering effects in noble metal nanoparticle-decorated graphene sheets. Phys Chem Chem Phys 2011; 13:21116-20. [DOI: 10.1039/c1cp22727k] [Citation(s) in RCA: 97] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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45
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Forbes MW, Jockusch RA. Gas-phase fluorescence excitation and emission spectroscopy of three xanthene dyes (rhodamine 575, rhodamine 590 and rhodamine 6G) in a quadrupole ion trap mass spectrometer. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2011; 22:93-109. [PMID: 21472548 DOI: 10.1007/s13361-010-0017-4] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2010] [Revised: 09/01/2010] [Accepted: 09/07/2010] [Indexed: 05/30/2023]
Abstract
The gas-phase fluorescence excitation, emission and photodissociation characteristics of three xanthene dyes (rhodamine 575, rhodamine 590, and rhodamine 6G) have been investigated in a quadrupole ion trap mass spectrometer. Measured gas-phase excitation and dispersed emission spectra are compared with solution-phase spectra and computations. The excitation and emission maxima for all three protonated dyes lie at higher energy in the gas phase than in solution. The measured Stokes shifts are significantly smaller for the isolated gaseous ions than the solvated ions. Laser power-dependence measurements indicate that absorption of multiple photons is required for photodissociation. Redshifts and broadening of the dispersed fluorescence spectra at high excitation laser power provide evidence of gradual heating of the ion population, pointing to a mechanism of sequential multiple-photon activation through absorption/emission cycling. The relative brightness in the gas phase follows the order R575(1.00) < R590(1.15) < R6G(1.29). Fluorescence emission from several mass-selected product ions has been measured.
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Affiliation(s)
- Matthew W Forbes
- Department of Chemistry, University of Toronto, Toronto, ON, M5S 3H6, Canada
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46
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Silverstein DW, Jensen L. Understanding the Resonance Raman Scattering of Donor−Acceptor Complexes using Long-Range Corrected DFT. J Chem Theory Comput 2010; 6:2845-55. [DOI: 10.1021/ct1002779] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Daniel W. Silverstein
- Department of Chemistry, The Pennsylvania State University, 104 Chemistry Building, University Park, Pennsylvania 16802
| | - Lasse Jensen
- Department of Chemistry, The Pennsylvania State University, 104 Chemistry Building, University Park, Pennsylvania 16802
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47
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Morton SM, Jensen L. A discrete interaction model/quantum mechanical method for describing response properties of molecules adsorbed on metal nanoparticles. J Chem Phys 2010; 133:074103. [DOI: 10.1063/1.3457365] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
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48
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Affiliation(s)
- Anne Myers Kelley
- School of Natural Sciences, University of California, Merced, California 95343;
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49
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Ling X, Xie L, Fang Y, Xu H, Zhang H, Kong J, Dresselhaus MS, Zhang J, Liu Z. Can graphene be used as a substrate for Raman enhancement? NANO LETTERS 2010; 10:553-61. [PMID: 20039694 DOI: 10.1021/nl903414x] [Citation(s) in RCA: 488] [Impact Index Per Article: 34.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Graphene is a monolayer of carbon atoms packed into a two-dimensional (2D) honeycomb crystal structure, which is a special material with many excellent properties. In the present study, we will discuss the possibility that graphene can be used as a substrate for enhancing Raman signals of adsorbed molecules. Here, phthalocyanine (Pc), rhodamine 6G (R6G), protoporphyin IX (PPP), and crystal violet (CV), which are popular molecules widely used as a Raman probe, are deposited equally on graphene and a SiO(2)/Si substrate using vacuum evaporation or solution soaking. By comparing the Raman signals of molecules on monolayer graphene and on a SiO(2)/Si substrate, we observed that the intensities of the Raman signals on monolayer graphene are much stronger than on a SiO(2)/Si substrate, indicating a clear Raman enhancement effect on the surface of monolayer graphene. For solution soaking, the Raman signals of the molecules are visible even though the concentration is low to 10(-8) mol/L or less. What's more interesting, the enhanced efficiencies are quite different on monolayer, few-layer, multilayer graphene, graphite, and highly ordered pyrolytic graphite (HOPG). The Raman signals of molecules on multilayer graphene are even weaker than on a SiO(2)/Si substrate, and the signals are even invisible on graphite and HOPG. Taking the Raman signals on the SiO(2)/Si substrate as a reference, Raman enhancement factors on the surface of monolayer graphene can be obtained using Raman intensity ratios. The Raman enhancement factors are quite different for different peaks, changing from 2 to 17. Furthermore, we found that the Raman enhancement factors can be distinguished through three classes that correspond to the symmetry of vibrations of the molecule. We attribute this enhancement to the charge transfer between graphene and the molecules, which result in a chemical enhancement. This is a new phenomenon for graphene that will expand the application of graphene to microanalysis and is good for studying the basic properties of both graphene and SERS.
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Affiliation(s)
- Xi Ling
- Beijing National Laboratory for Molecular Sciences, Key Laboratory for the Physics and Chemistry of Nanodevices, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
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50
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Bian Q, Forbes MW, Talbot FO, Jockusch RA. Gas-phase fluorescence excitation and emission spectroscopy of mass-selected trapped molecular ions. Phys Chem Chem Phys 2010; 12:2590-8. [DOI: 10.1039/b921076h] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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