1
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Lee SG, Kwak S, Son WK, Kim S, Nam KT, Lee HY, Jeong DH. Chiral-Induced Surface-Enhanced Raman Optical Activity on a Single-Particle Substrate. Anal Chem 2024; 96:9894-9900. [PMID: 38834937 DOI: 10.1021/acs.analchem.4c00772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2024]
Abstract
Surface-enhanced Raman optical activity (SEROA) is a promising method for analyzing chiral molecules' molecular chirality and structural changes. However, conventional SEROA measurements face challenges related to substrate stability, signal uniformity, and interference from electronic circular dichroism (ECD). Therefore, in this study, we present a uniform and stable substrate for SEROA measurements by utilizing Au nanoparticles on the Au nanofilm structure to confine hotspots to the film-particle junctions and minimize ECD interference. This method also uses the induction of chirality from chiral molecules to achiral molecules to overcome the limitation of chiral molecules in SEROA measurements, specifically their lower signal efficiency. Successful chirality transfer is demonstrated through distinguishable SEROA signals when the l/d-alanine mixture is present. Enantiomeric discrimination of different l/d-alanine ratios was achieved with linear responses in the circular intensity difference (CID). Altogether, the proposed chiral-induced SEROA on the AuNP_on_AuNF substrate shows promising potential for detecting and characterizing structural changes in biomolecules, thus making it a valuable tool for various research applications.
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Affiliation(s)
- Sung Gun Lee
- Department of Chemistry Education, College of Education, Seoul National University, Seoul 08826, Republic of Korea
| | - Sungjun Kwak
- Department of Chemistry Education, College of Education, Seoul National University, Seoul 08826, Republic of Korea
| | - Won-Ki Son
- Department of Chemistry Education, College of Education, Seoul National University, Seoul 08826, Republic of Korea
| | - Seonung Kim
- Department of Chemistry Education, College of Education, Seoul National University, Seoul 08826, Republic of Korea
| | - Ki Tae Nam
- Department of Materials Science and Engineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Ho-Young Lee
- Department of Nuclear Medicine, Seoul National University Bundang Hospital, Seongnam 13620, Republic of Korea
| | - Dae Hong Jeong
- Department of Chemistry Education, College of Education, Seoul National University, Seoul 08826, Republic of Korea
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2
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Er E, Chow TH, Liz-Marzán LM, Kotov NA. Circular Polarization-Resolved Raman Optical Activity: A Perspective on Chiral Spectroscopies of Vibrational States. ACS NANO 2024; 18:12589-12597. [PMID: 38709673 PMCID: PMC11112978 DOI: 10.1021/acsnano.3c13228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 03/20/2024] [Accepted: 04/16/2024] [Indexed: 05/08/2024]
Abstract
Circular polarization-resolved Raman scattering methods include Raman optical activity (ROA) and its derivative─surface-enhanced Raman optical activity (SEROA). These spectroscopic modalities are rapidly developing due to their high information content, stand-off capabilities, and rapid development of Raman-active chiral nanostructures. These methods enable a direct readout of the vibrational energy levels of chiral molecules, crystals, and nanostructured materials, making it possible to study complex interactions and the dynamic interfaces between them. They were shown to be particularly valuable for nano- and biotechnological fields encompassing complex particles with nanoscale chirality that combine strong scattering and intense polarization rotation. This perspective dives into recent advancements in ROA and SEROA, their distinction from surface-enhanced Raman scattering, and the potential of these information-rich label-free spectroscopies for the detection of chiral biomolecules.
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Affiliation(s)
- Engin Er
- Department
of Chemical Engineering, University of Michigan, Ann Arbor 48109-2102, Michigan, United States
- NSF
Center for Complex Particle Systems (COMPASS), Ann Arbor 48109, Michigan, United States
- Biotechnology
Institute, Ankara University, Ankara 06135, Turkey
| | - Tsz Him Chow
- CIC
biomaGUNE, Basque Research and Technology Alliance (BRTA), Donostia-San Sebastián 20014, Spain
| | - Luis M. Liz-Marzán
- CIC
biomaGUNE, Basque Research and Technology Alliance (BRTA), Donostia-San Sebastián 20014, Spain
- Ikerbasque,
Basque Foundation for Science, Bilbao 43009, Spain
- Centro de
Investigación Biomédica en Red, Bioingeniería,
Biomateriales y Nanomedicina (CIBER-BBN), Donostia-San Sebastián 20014, Spain
- Cinbio, University of Vigo, Vigo 36310, Spain
| | - Nicholas A. Kotov
- Department
of Chemical Engineering, University of Michigan, Ann Arbor 48109-2102, Michigan, United States
- NSF
Center for Complex Particle Systems (COMPASS), Ann Arbor 48109, Michigan, United States
- Department
of Materials Science, University of Michigan, Ann Arbor 48109-2102, Michigan, United States
- Biointerfaces
Institute, University of Michigan, Ann Arbor 48109-2102, Michigan, United States
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3
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Kumar P, Simon A, Kotov NA. Enantiomeric discrimination by chiral electromagnetic resonance enhancement. Chirality 2023; 35:732-738. [PMID: 37142446 DOI: 10.1002/chir.23578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 04/20/2023] [Accepted: 04/21/2023] [Indexed: 05/06/2023]
Abstract
Circularly polarized light interacts preferentially with the biomolecules to generate spectral fingerprints reflecting their primary and secondary structure in the ultraviolet region of the electromagnetic spectrum. The spectral features can be transferred to the visible and near-infrared regions by coupling the biomolecules with plasmonic assemblies made of noble metals. Nanoscale gold tetrahelices were used to detect the presence of chiral objects that are 40 times smaller in size by using plane-polarized light of 550 nm wavelength. The emergence of chiral hotspots in the gaps between 80 nm long tetrahelices differentiate between weakly scattering S- vs R-molecules with optical constants similar to that of organic solvents. Simulations map the spatial distribution of the scattered field to reveal enantiomeric discrimination with selectivity up to 0.54.
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Affiliation(s)
- Prashant Kumar
- Biointerfaces Institute, University of Michigan, Ann Arbor, Michigan, USA
- Department of Chemical Engineering, University of Michigan, Ann Arbor, Michigan, USA
| | - Alexander Simon
- Biointerfaces Institute, University of Michigan, Ann Arbor, Michigan, USA
- Department of Chemical Engineering, University of Michigan, Ann Arbor, Michigan, USA
| | - Nicholas A Kotov
- Biointerfaces Institute, University of Michigan, Ann Arbor, Michigan, USA
- Department of Chemical Engineering, University of Michigan, Ann Arbor, Michigan, USA
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4
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Xiao X, Gillibert R, Foti A, Coulon PE, Ulysse C, Levato T, Maier SA, Giannini V, Gucciardi PG, Rizza G. Plasmonic Polarization Rotation in SERS Spectroscopy. NANO LETTERS 2023; 23:2530-2535. [PMID: 37010197 PMCID: PMC10103303 DOI: 10.1021/acs.nanolett.2c04461] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 03/26/2023] [Indexed: 05/30/2023]
Abstract
Surface-enhanced Raman optical activity (SEROA) has been extensively investigated due to its ability to directly probe stereochemistry and molecular structure. However, most works have focused on the Raman optical activity (ROA) effect arising from the chirality of the molecules on isotropic surfaces. Here, we propose a strategy for achieving a similar effect: i.e., a surface-enhanced Raman polarization rotation effect arising from the coupling of optically inactive molecules with the chiral plasmonic response of metasurfaces. This effect is due to the optically active response of metallic nanostructures and their interaction with molecules, which could extend the ROA potential to inactive molecules and be used to enhance the sensibility performances of surface-enhanced Raman spectroscopy. More importantly, this technique does not suffer from the heating issue present in traditional plasmonic-enhanced ROA techniques, as it does not rely on the chirality of the molecules.
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Affiliation(s)
- Xiaofei Xiao
- Technology
Innovation Institute, P.O. Box 9639,
Building B04C, Masdar City, Abu Dhabi, United Arab Emirates
| | - Raymond Gillibert
- CNR-IPCF, Istituto per i Processi Chimico-Fisici, Messina I-98158, Italy
| | - Antonino Foti
- CNR-IPCF, Istituto per i Processi Chimico-Fisici, Messina I-98158, Italy
| | - Pierre-Eugène Coulon
- LSI,
Institut Polytechnique de Paris, CEA/DRF/IRAMIS, CNRS, Ecole polytechnique, Route de Saclay, Palaiseau 91128, France
| | - Christian Ulysse
- Centre
for Nanoscience and Nanotechnology, CNRS, Université Paris-Saclay, Palaiseau 91140, France
| | - Tadzio Levato
- Technology
Innovation Institute, P.O. Box 9639,
Building B04C, Masdar City, Abu Dhabi, United Arab Emirates
| | - Stefan A. Maier
- School
of Physics and Astronomy, Monash University, Clayton, Victoria 3800, Australia
- The
Blackett
Laboratory, Imperial College London, London SW7 2AZ, United Kingdom
- Chair
in Hybrid Nanosystems, Nanoinstitute München, Faculty of Physics, Ludwig-Maximilians-Universität München, 80539 München, Germany
| | - Vincenzo Giannini
- Technology
Innovation Institute, P.O. Box 9639,
Building B04C, Masdar City, Abu Dhabi, United Arab Emirates
- Instituto
de Estructura de la Materia (IEM-CSIC), Consejo Superior de Investigaciones Científicas, Serrano 121, 28006 Madrid, Spain
- Centre
of Excellence ENSEMBLE3 sp. z o.o., Wolczynska 133, Warsaw 01-919, Poland
| | | | - Giancarlo Rizza
- LSI,
Institut Polytechnique de Paris, CEA/DRF/IRAMIS, CNRS, Ecole polytechnique, Route de Saclay, Palaiseau 91128, France
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5
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Guselnikova O, Elashnikov R, Svorcik V, Kartau M, Gilroy C, Gadegaard N, Kadodwala M, Karimullah AS, Lyutakov O. Coupling of plasmonic hot spots with shurikens for superchiral SERS-based enantiomer recognition. NANOSCALE HORIZONS 2023; 8:499-508. [PMID: 36752733 DOI: 10.1039/d3nh00008g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Detection of enantiomers is a challenging problem in drug development as well as environmental and food quality monitoring where traditional optical detection methods suffer from low signals and sensitivity. Application of surface enhanced Raman scattering (SERS) for enantiomeric discrimination is a powerful approach for the analysis of optically active small organic or large biomolecules. In this work, we proposed the coupling of disposable chiral plasmonic shurikens supporting the chiral near-field distribution with SERS active silver nanoclusters for enantio-selective sensing. As a result of the plasmonic coupling, significant difference in SERS response of optically active analytes is observed. The observations are studied by numerical simulations and it is hypothesized that the silver particles are being excited by superchiral fields generated at the surface inducing additional polarizations in the probe molecules. The plasmon coupling phenomena was found to be extremely sensitive to slight variations in shuriken geometry, silver nanostructured layer parameters, and SERS excitation wavelength(s). Designed structures were able to discriminate cysteine enantiomers at concentrations in the nanomolar range and probe biomolecular chirality, using a common Raman spectrometer within several minutes. The combination of disposable plasmonic substrates with specific near-field polarization can make the SERS enantiomer discrimination a commonly available technique using standard Raman spectrometers.
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Affiliation(s)
- Olga Guselnikova
- Department of Solid State Engineering, University of Chemistry and Technology, 16628 Prague, Czech Republic.
- Research School of Chemistry and Applied Biomedical Sciences, Tomsk Polytechnic University, Tomsk, 634050, Russian Federation.
| | - Roman Elashnikov
- Department of Solid State Engineering, University of Chemistry and Technology, 16628 Prague, Czech Republic.
| | - Vaclav Svorcik
- Department of Solid State Engineering, University of Chemistry and Technology, 16628 Prague, Czech Republic.
| | - Martin Kartau
- School of Chemistry, Joseph Black Building, University of Glasgow, Glasgow, G12 8QQ, UK.
| | - Cameron Gilroy
- School of Chemistry, Joseph Black Building, University of Glasgow, Glasgow, G12 8QQ, UK.
| | - Nikolaj Gadegaard
- James Watt School of Engineering, University of Glasgow, Rankine Building, Glasgow, G12 8LT, UK
| | - Malcolm Kadodwala
- School of Chemistry, Joseph Black Building, University of Glasgow, Glasgow, G12 8QQ, UK.
| | - Affar S Karimullah
- School of Chemistry, Joseph Black Building, University of Glasgow, Glasgow, G12 8QQ, UK.
| | - Oleksiy Lyutakov
- Department of Solid State Engineering, University of Chemistry and Technology, 16628 Prague, Czech Republic.
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6
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Das M, Gangopadhyay D, Pelc R, Hadravová R, Šebestík J, Bouř P. Aggregation-aided SERS: Selective detection of arsenic by surface-enhanced Raman spectroscopy facilitated by colloid cross-linking. Talanta 2023; 253:123940. [DOI: 10.1016/j.talanta.2022.123940] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 08/26/2022] [Accepted: 09/14/2022] [Indexed: 11/30/2022]
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7
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Sokolová M, Šestáková H, Truksa M, Šafařík M, Hadravová R, Bouř P, Šebestík J. Photochemical synthesis of pink silver and its use for monitoring peptide nitration via surface enhanced Raman spectroscopy (SERS). Amino Acids 2022; 54:1261-1274. [PMID: 35731286 DOI: 10.1007/s00726-022-03178-w] [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: 01/13/2022] [Accepted: 05/31/2022] [Indexed: 12/01/2022]
Abstract
Oxidative stress may cause extended tyrosine posttranslational modifications of peptides and proteins. The 3-nitro-L-tyrosine (Nit), which is typically formed, affects protein behavior during neurodegenerative processes, such as Alzheimer's and Parkinson's diseases. Such metabolic products may be conveniently detected at very low concentrations by surface enhanced Raman spectroscopy (SERS). Previously, we have explored the SERS detection of the Nit NO2 bending vibrational bands in a presence of hydrogen chloride (Niederhafner et al., Amino Acids 53:517-532, 2021, ibid). In this article, we describe performance of a new SERS substrate, "pink silver", synthesized photochemically. It provides SERS even without the HCl induction, and the acid further decreases the detection limit about 9 times. Strong SERS bands were observed in the asymmetric (1550-1475 cm-1) and symmetric (1360-1290 cm-1) NO stretching in the NO2 group. The bending vibration was relatively weak, but appeared stronger when HCl was added. The band assignments were supported by density functional theory modeling.
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Affiliation(s)
- Marina Sokolová
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences, Flemingovo náměstí 2, 16610, Prague 6, Czech Republic
| | - Hana Šestáková
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences, Flemingovo náměstí 2, 16610, Prague 6, Czech Republic
| | - Martin Truksa
- Mensa Gymnázium O.P.S., Španielova 1111/19, 163 00, Prague 6, Czech Republic
| | - Martin Šafařík
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences, Flemingovo náměstí 2, 16610, Prague 6, Czech Republic
| | - Romana Hadravová
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences, Flemingovo náměstí 2, 16610, Prague 6, Czech Republic
| | - Petr Bouř
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences, Flemingovo náměstí 2, 16610, Prague 6, Czech Republic
| | - Jaroslav Šebestík
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences, Flemingovo náměstí 2, 16610, Prague 6, Czech Republic. .,Mensa Gymnázium O.P.S., Španielova 1111/19, 163 00, Prague 6, Czech Republic.
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8
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Yamamoto S, Kimura F. Probing the solvation of the α-helix with extended amide III bands in Raman optical activity. Phys Chem Chem Phys 2022; 24:3191-3199. [PMID: 35043805 DOI: 10.1039/d1cp04480j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Experimental and theoretical Raman optical activity (ROA) study of α-helical peptides and proteins has suggested that the relative intensity of two extended amide III ROA bands at ∼1340 cm-1 (I band) and ∼1300 cm-1 (II band) can be used to monitor the permittivity of the surrounding medium of the α-helix. So far, the ROA intensity ratio, II/III, has been interpreted from two different viewpoints. The first one is in terms of a direct effect of permittivity around the α-helix. The second one is based on a structural equilibrium of two types of α-helical structures, "hydrated" and "unhydrated" ones. In the present study, temperature- and solvent-dependences of II/III are measured for highly-α-helical peptides and compared to the theoretical spectra while varying the permittivity or the type of α-helical structure. A fragment method with partial optimization in the normal modes is adopted in density functional theory calculations. The main features of the experimental spectra and a trend of the observed II/III are well reproduced by the simulations, which leads us to a conclusion that the II/III is dominantly governed by a direct influence of the permittivity of the environment and just accessorily by the equilibrium of the two types of α-helices. The simulations also opposed the conventional assignments of the I and II bands to "hydrated" and "unhydrated" α-helical structures, respectively. In the case of α-helical proteins, solvent exposure of the α-helix may be monitored by the ROA ratio.
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Affiliation(s)
- Shigeki Yamamoto
- Department of Chemistry, Graduate School of Science, Osaka University, Osaka 560-0043, Japan.
| | - Fumiya Kimura
- Department of Chemistry, Graduate School of Science, Osaka University, Osaka 560-0043, Japan.
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9
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Neutral and charged forms of inubosin B in aqueous solutions at different pH and on the surface of Ag nanoparticles. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131828] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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10
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Yamamoto S, Ishiro S, Kessler J, Bouř P. Intense chiral signal from α-helical poly-L-alanine observed in low-frequency Raman optical activity. Phys Chem Chem Phys 2021; 23:26501-26509. [PMID: 34806737 DOI: 10.1039/d1cp04401j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Raman optical activity (ROA) spectral features reliably indicate the structure of peptides and proteins, but the signal is often weak. However, we observed significantly enhanced low-frequency bands for α-helical poly-L-alanine (PLA) in solution. The biggest ROA signal at ∼100 cm-1 is about 10 times stronger than higher-frequency bands described previously, which facilitates the detection. The low-frequency bands of PLA were compared to those of α-helical proteins. For PLA, density functional simulations well reproduced the experimental spectra and revealed that about 12 alanine residues within two turns of the α-helix generate the strong ROA band. Averaging based on molecular dynamics (MD) provided an even more realistic spectrum compared to the static model. The low-frequency bands could be largely related to a collective motion of the α-helical backbone, partially modulated by the solvent. Helical and intermolecular vibrational coordinates have been introduced and the helical unwinding modes were assigned to the strongest ROA signal at 101-128 cm-1. Further analysis indicated that the helically arranged amide and methyl groups are important for the strong chiral signal of PLA, while the local chiral centers CαH contribute in a minor way only. The strong low-frequency ROA can thus provide precious information about the motions of the peptide backbone and facilitate future protein studies.
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Affiliation(s)
- Shigeki Yamamoto
- Department of Chemistry, Graduate School of Science, Osaka University, Osaka 560-0043, Japan.
| | - Shota Ishiro
- Department of Chemistry, Graduate School of Science, Osaka University, Osaka 560-0043, Japan.
| | - Jiří Kessler
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences, Flemingovo náměstí 2, 16610 Prague, Czech Republic.
| | - Petr Bouř
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences, Flemingovo náměstí 2, 16610 Prague, Czech Republic.
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11
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Zając G, Bouř P. Measurement and Theory of Resonance Raman Optical Activity for Gases, Liquids, and Aggregates. What It Tells about Molecules. J Phys Chem B 2021; 126:355-367. [PMID: 34792364 DOI: 10.1021/acs.jpcb.1c08370] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Resonance Raman Optical Activity (RROA) appeared as a natural extension of the nonresonance branch. It combines the structural sensitivity of chiroptical spectroscopy with the signal enhancement coming from the resonance of molecular electronic transitions with the excitation laser light. However, the idea has been hampered by many technical and theoretical problems that are being clarified only in recent years. We provide the theoretical basis and several examples documenting the problems, achievements, and potential of RROA, in particular in biomolecular studies.
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Affiliation(s)
- Grzegorz Zając
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Bobrzynskiego 14, Krakow 30-348, Poland
| | - Petr Bouř
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences, Flemingovo náměstí 2, Prague, 16610, Czech Republic
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