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Vesco G, Brambati M, Scapinello L, Penoni A, Mella M, Masson M, Gaware V, Maspero A, Nardo L. Asymmetric Phenyl Substitution: An Effective Strategy to Enhance the Photosensitizing Potential of Curcuminoids. Pharmaceuticals (Basel) 2022; 15:843. [PMID: 35890142 PMCID: PMC9321223 DOI: 10.3390/ph15070843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 07/01/2022] [Accepted: 07/06/2022] [Indexed: 11/16/2022] Open
Abstract
Curcumin has been demonstrated to exhibit photosensitized bactericidal activity. However, the full exploitation of curcumin as a photo-pharmaceutical active principle is hindered by fast deactivation of the excited state through the transfer of the enol proton to the keto oxygen. Introducing an asymmetry in the molecular structure through acting on the phenyl substituents is expected to be a valuable strategy to impair this undesired de-excitation mechanism competing with the therapeutically relevant ones. In this study, two asymmetric curcumin analogs were synthesized and characterized as to their electronic-state transition spectroscopic properties. Fluorescence decay distributions were also reconstructed. Their analysis confirmed the substantial stabilization of the fluorescent state with respect to the parent compound. Nuclear magnetic resonance experiments were performed with the aim of determining the structural features of the keto-enol ring and the strength of the keto-enol hydrogen bond. Electronic structure calculations were also undertaken to elucidate the effects of substitution on the features of the keto-enol semi-aromatic system and the proneness to proton transfer. Finally, their singlet oxygen-generation efficiency was compared to that of curcumin through the 9,10-dimethylanthracene fluorescent assay.
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Affiliation(s)
- Guglielmo Vesco
- Department of Science and High Technology, Università degli Studi dell’Insubria, Via Valleggio 11, 22100 Como, Italy; (G.V.); (M.B.); (L.S.); (A.P.); (M.M.)
| | - Martino Brambati
- Department of Science and High Technology, Università degli Studi dell’Insubria, Via Valleggio 11, 22100 Como, Italy; (G.V.); (M.B.); (L.S.); (A.P.); (M.M.)
| | - Luca Scapinello
- Department of Science and High Technology, Università degli Studi dell’Insubria, Via Valleggio 11, 22100 Como, Italy; (G.V.); (M.B.); (L.S.); (A.P.); (M.M.)
| | - Andrea Penoni
- Department of Science and High Technology, Università degli Studi dell’Insubria, Via Valleggio 11, 22100 Como, Italy; (G.V.); (M.B.); (L.S.); (A.P.); (M.M.)
| | - Massimo Mella
- Department of Science and High Technology, Università degli Studi dell’Insubria, Via Valleggio 11, 22100 Como, Italy; (G.V.); (M.B.); (L.S.); (A.P.); (M.M.)
| | - Màr Masson
- School of Health Sciences, University of Iceland, Saemundargata 2, 102 Reykjavìk, Iceland; (M.M.); (V.G.)
| | - Vivek Gaware
- School of Health Sciences, University of Iceland, Saemundargata 2, 102 Reykjavìk, Iceland; (M.M.); (V.G.)
| | - Angelo Maspero
- Department of Science and High Technology, Università degli Studi dell’Insubria, Via Valleggio 11, 22100 Como, Italy; (G.V.); (M.B.); (L.S.); (A.P.); (M.M.)
| | - Luca Nardo
- Department of Science and High Technology, Università degli Studi dell’Insubria, Via Valleggio 11, 22100 Como, Italy; (G.V.); (M.B.); (L.S.); (A.P.); (M.M.)
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2
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Rong Y, Hassan MM, Ouyang Q, Chen Q. Lanthanide ion (Ln 3+ )-based upconversion sensor for quantification of food contaminants: A review. Compr Rev Food Sci Food Saf 2021; 20:3531-3578. [PMID: 34076359 DOI: 10.1111/1541-4337.12765] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 03/31/2021] [Accepted: 04/03/2021] [Indexed: 12/23/2022]
Abstract
The food safety issue has gradually become the focus of attention in modern society. The presence of food contaminants poses a threat to human health and there are a number of interesting researches on the detection of food contaminants. Upconversion nanoparticles (UCNPs) are superior to other fluorescence materials, considering the benefits of large anti-Stokes shifts, high chemical stability, non-autofluorescence, good light penetration ability, and low toxicity. These properties render UCNPs promising candidates as luminescent labels in biodetection, which provides opportunities as a sensitive, accurate, and rapid detection method. This paper intended to review the research progress of food contaminants detection by UCNPs-based sensors. We have proposed the key criteria for UCNPs in the detection of food contaminants. Additionally, it highlighted the construction process of the UCNPs-based sensors, which includes the synthesis and modification of UCNPs, selection of the recognition elements, and consideration of the detection principle. Moreover, six kinds of food contaminants detected by UCNPs technology in the past 5 years have been summarized and discussed fairly. Last but not least, it is outlined that UCNPs have great potential to be applied in food safety detection and threw new insight into the challenges ahead.
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Affiliation(s)
- Yawen Rong
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Md Mehedi Hassan
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Qin Ouyang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Quansheng Chen
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
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3
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Ben Mihoub A, Acherar S, Frochot C, Malaplate C, Yen FT, Arab-Tehrany E. Synthesis of New Water Soluble β-Cyclodextrin@Curcumin Conjugates and In Vitro Safety Evaluation in Primary Cultures of Rat Cortical Neurons. Int J Mol Sci 2021; 22:ijms22063255. [PMID: 33806807 PMCID: PMC8004725 DOI: 10.3390/ijms22063255] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 03/18/2021] [Accepted: 03/19/2021] [Indexed: 01/01/2023] Open
Abstract
Self-aggregation of Curcumin (Cur) in aqueous biological environment decreases its bioavailability and in vivo therapeutic efficacy, which hampers its clinical use as candidate for reducing risk of neurodegenerative diseases. Here, we focused on the design of new Cur- β-Cyclodextrin nanoconjugates to improve the solubility and reduce cell toxicity of Cur. In this study, we described the synthesis, structural characterization, photophysical properties and neuron cell toxicity of two new water soluble β-CD/Cur nanoconjugates as new strategy for reducing risks of neurodegenerative diseases. Cur was coupled to one or two β-CD molecules via triazole rings using CuAAC click chemistry strategy to yield β-CD@Cur and (β-CD)2@Cur nanoconjugates, respectively. The synthesized nanoconjugates were found to be able to self-assemble in aqueous condition and form nano-aggregates of an average diameter size of around 35 and 120 nm for β-CD@Cur and (β-CD)2@Cur, respectively. The photophysical properties, water solubility and cell toxicity on rat embryonic cortical neurons of the designed nanoconjugates were investigated and compared to that of Cur alone. The findings revealed that both new nanoconjugates displayed better water solubility and in vitro biocompatibility than Cur alone, thus making it possible to envisage their use as future nano-systems for the prevention or risk reduction of neurodegenerative diseases.
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Affiliation(s)
- Amina Ben Mihoub
- LIBio Laboratory, Université de Lorraine, F-54000 Nancy, France
- LCPM, CNRS, Université de Lorraine, F-54000 Nancy, France
- LRGP, CNRS, Université de Lorraine, F-54000 Nancy, France;
- Correspondence: (A.B.M.); (S.A.); (E.A.-T.)
| | - Samir Acherar
- LCPM, CNRS, Université de Lorraine, F-54000 Nancy, France
- Correspondence: (A.B.M.); (S.A.); (E.A.-T.)
| | - Céline Frochot
- LRGP, CNRS, Université de Lorraine, F-54000 Nancy, France;
| | - Catherine Malaplate
- URAFPA, INRAE, Université de Lorraine, F-54000 Nancy, France; (C.M.); (F.T.Y.)
| | - Frances T. Yen
- URAFPA, INRAE, Université de Lorraine, F-54000 Nancy, France; (C.M.); (F.T.Y.)
| | - Elmira Arab-Tehrany
- LIBio Laboratory, Université de Lorraine, F-54000 Nancy, France
- Correspondence: (A.B.M.); (S.A.); (E.A.-T.)
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4
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Jutkova A, Chorvat D, Miskovsky P, Jancura D, Datta S. Encapsulation of anticancer drug curcumin and co-loading with photosensitizer hypericin into lipoproteins investigated by fluorescence resonance energy transfer. Int J Pharm 2019; 564:369-378. [DOI: 10.1016/j.ijpharm.2019.04.062] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 04/17/2019] [Accepted: 04/20/2019] [Indexed: 01/19/2023]
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5
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Photochemical Degradation of Curcumin: a Mechanism for Aqueous Based Sensing of Fluoride. J Fluoresc 2017; 27:2169-2176. [DOI: 10.1007/s10895-017-2156-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Accepted: 07/31/2017] [Indexed: 10/19/2022]
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6
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Hazra MK, Roy S, Bagchi B. Hydrophobic hydration driven self-assembly of curcumin in water: similarities to nucleation and growth under large metastability, and an analysis of water dynamics at heterogeneous surfaces. J Chem Phys 2015; 141:18C501. [PMID: 25399166 DOI: 10.1063/1.4895539] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
As the beneficial effects of curcumin have often been reported to be limited to its small concentrations, we have undertaken a study to find the aggregation properties of curcumin in water by varying the number of monomers. Our molecular dynamics simulation results show that the equilibrated structure is always an aggregated state with remarkable structural rearrangements as we vary the number of curcumin monomers from 4 to 16 monomers. We find that the curcumin monomers form clusters in a very definite pattern where they tend to aggregate both in parallel and anti-parallel orientation of the phenyl rings, often seen in the formation of β-sheet in proteins. A considerable enhancement in the population of parallel alignments is observed with increasing the system size from 12 to 16 curcumin monomers. Due to the prevalence of such parallel alignment for large system size, a more closely packed cluster is formed with maximum number of hydrophobic contacts. We also follow the pathway of cluster growth, in particular the transition from the initial segregated to the final aggregated state. We find the existence of a metastable structural intermediate involving a number of intermediate-sized clusters dispersed in the solution. We have constructed a free energy landscape of aggregation where the metatsable state has been identified. The course of aggregation bears similarity to nucleation and growth in highly metastable state. The final aggregated form remains stable with the total exclusion of water from its sequestered hydrophobic core. We also investigate water structure near the cluster surface along with their orientation. We find that water molecules form a distorted tetrahedral geometry in the 1st solvation layer of the cluster, interacting rather strongly with the hydrophilic groups at the surface of the curcumin. The dynamics of such quasi-bound water molecules near the surface of curcumin cluster is considerably slower than the bulk signifying a restricted motion as often found in protein hydration layer.
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Affiliation(s)
- Milan Kumar Hazra
- Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore 560012, India
| | - Susmita Roy
- Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore 560012, India
| | - Biman Bagchi
- Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore 560012, India
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7
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Lemos MA, Sárniková K, Bot F, Anese M, Hungerford G. Use of Time-Resolved Fluorescence to Monitor Bioactive Compounds in Plant Based Foodstuffs. BIOSENSORS 2015; 5:367-97. [PMID: 26132136 PMCID: PMC4600163 DOI: 10.3390/bios5030367] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2015] [Revised: 06/09/2015] [Accepted: 06/15/2015] [Indexed: 11/25/2022]
Abstract
The study of compounds that exhibit antioxidant activity has recently received much interest in the food industry because of their potential health benefits. Most of these compounds are plant based, such as polyphenolics and carotenoids, and there is a need to monitor them from the field through processing and into the body. Ideally, a monitoring technique should be non-invasive with the potential for remote capabilities. The application of the phenomenon of fluorescence has proved to be well suited, as many plant associated compounds exhibit fluorescence. The photophysical behaviour of fluorescent molecules is also highly dependent on their microenvironment, making them suitable probes to monitor changes in pH, viscosity and polarity, for example. Time-resolved fluorescence techniques have recently come to the fore, as they offer the ability to obtain more information, coupled with the fact that the fluorescence lifetime is an absolute measure, while steady state just provides relative and average information. In this work, we will present illustrative time-resolved measurements, rather than a comprehensive review, to show the potential of time-resolved fluorescence applied to the study of bioactive substances. The aim is to help assess if any changes occur in their form, going from extraction via storage and cooking to the interaction with serum albumin, a principal blood transport protein.
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Affiliation(s)
- M Adília Lemos
- Food & Life Sciences, School of Science, Engineering and Technology, University of Abertay Dundee, Bell Street, Dundee DD1 1HG, UK.
| | - Katarína Sárniková
- Food & Life Sciences, School of Science, Engineering and Technology, University of Abertay Dundee, Bell Street, Dundee DD1 1HG, UK.
| | - Francesca Bot
- Department of Food Science, University of Udine, Via Sondrio 2/A, 33100 Udine, Italy.
| | - Monica Anese
- Department of Food Science, University of Udine, Via Sondrio 2/A, 33100 Udine, Italy.
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8
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Erez Y, Simkovitch R, Shomer S, Gepshtein R, Huppert D. Effect of Acid on the Ultraviolet–Visible Absorption and Emission Properties of Curcumin. J Phys Chem A 2014; 118:872-84. [DOI: 10.1021/jp411686d] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Yuval Erez
- Department
of Physics of Complex Systems, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Ron Simkovitch
- Raymond
and Beverly Sackler Faculty of Exact Sciences, School of Chemistry, Tel Aviv University, Tel Aviv 69978, Israel
| | - Shay Shomer
- Raymond
and Beverly Sackler Faculty of Exact Sciences, School of Chemistry, Tel Aviv University, Tel Aviv 69978, Israel
| | - Rinat Gepshtein
- Raymond
and Beverly Sackler Faculty of Exact Sciences, School of Chemistry, Tel Aviv University, Tel Aviv 69978, Israel
| | - Dan Huppert
- Raymond
and Beverly Sackler Faculty of Exact Sciences, School of Chemistry, Tel Aviv University, Tel Aviv 69978, Israel
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9
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Mouslmani M, Patra D. Revoking excited state intra-molecular hydrogen transfer by size dependent tailor-made hierarchically ordered nanocapsules. RSC Adv 2014. [DOI: 10.1039/c3ra45095c] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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10
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Adília Lemos M, Hungerford G. The Binding ofCurcuma longaExtract with Bovine Serum Albumin MonitoredviaTime-Resolved Fluorescence. Photochem Photobiol 2013; 89:1071-8. [DOI: 10.1111/php.12129] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2013] [Accepted: 07/01/2013] [Indexed: 01/24/2023]
Affiliation(s)
- M. Adília Lemos
- Food Division; School of Contemporary Sciences; University of Abertay Dundee; Dundee; UK
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11
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Leung MHM, Pham DT, Lincoln SF, Kee TW. Femtosecond transient absorption spectroscopy of copper(II)-curcumin complexes. Phys Chem Chem Phys 2013; 14:13580-7. [PMID: 22955266 DOI: 10.1039/c2cp40208d] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ligand-metal interaction between curcumin and Cu(II) in methanol and sodium dodecyl sulfate (SDS) micelles was investigated using fluorescence spectroscopy and transient absorption spectroscopy. The Cu(II) ion exhibits a high efficiency in quenching the fluorescence of curcumin. By quantifying fluorescence quenching as a function of Cu(II) concentration, the complexation constants, K(1) and K(2), for the formation of the 1 : 1 and 1 : 2 Cu(II)-curcumin complexes, [Cu(II)-Cur](+) and [Cu(II)-Cur(2)], have been determined. In methanol, K(1) and K(2) are (1.33 ± 0.47) × 10(8) M(-1) and (6.79 ± 1.77) × 10(5) M(-1), respectively, whereas those in SDS micelles are (9.90 ± 1.68) × 10(5) M(-1) and (1.70 ± 0.48) × 10(6) M(-1), respectively. The transient absorption spectra of curcumin and the Cu(II)-curcumin complexes from 520 nm to 700 nm show a combination of stimulated emission and excited state absorption (ESA). However, the transient absorption signal at 500 nm corresponds to ESA exclusively. For curcumin, the ESA kinetics exhibit two rising components with time constants of 0.9 ps and 8.2 ps in methanol, and 0.5 ps and 2.5 ps in SDS micelles, which are consistent with solvation dynamics of excited state curcumin in these media. In addition, the ESA kinetics show a decay component with a time constant of 125 ps in methanol and 64 ps in SDS micelles, reflecting the excited state intramolecular hydrogen atom transfer of curcumin in these media. The ESA kinetics of the Cu(II)-curcumin complexes exhibit a sharp rise and a fast decay with a time constant of approximately 1 ps in both media due to the strong interaction between Cu(II) and curcumin.
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Affiliation(s)
- Mandy H M Leung
- Department of Chemistry, University of Adelaide, Adelaide, South Australia 5005, Australia
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12
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Presiado I, Erez Y, Gepshtein R, Koifman N, Huppert D. Pressure effect on the excited-state proton transfer from curcumin to monols. J Photochem Photobiol A Chem 2012. [DOI: 10.1016/j.jphotochem.2012.08.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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13
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Erez Y, Presiado I, Gepshtein R, Huppert D. The Effect of a Mild Base on Curcumin in Methanol and Ethanol. J Phys Chem A 2012; 116:2039-48. [DOI: 10.1021/jp300003a] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Yuval Erez
- Raymond and Beverly Sackler
Faculty of Exact Sciences,
School of Chemistry, Tel Aviv University, Tel Aviv 69978, Israel
| | - Itay Presiado
- Raymond and Beverly Sackler
Faculty of Exact Sciences,
School of Chemistry, Tel Aviv University, Tel Aviv 69978, Israel
| | - Rinat Gepshtein
- Raymond and Beverly Sackler
Faculty of Exact Sciences,
School of Chemistry, Tel Aviv University, Tel Aviv 69978, Israel
| | - Dan Huppert
- Raymond and Beverly Sackler
Faculty of Exact Sciences,
School of Chemistry, Tel Aviv University, Tel Aviv 69978, Israel
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14
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Erez Y, Presiado I, Gepshtein R, Huppert D. Temperature Dependence of the Fluorescence Properties of Curcumin. J Phys Chem A 2011; 115:10962-71. [DOI: 10.1021/jp206176p] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Yuval Erez
- Raymond and Beverly Sackler Faculty of Exact Sciences, School of Chemistry, Tel Aviv University, Tel Aviv 69978, Israel
| | - Itay Presiado
- Raymond and Beverly Sackler Faculty of Exact Sciences, School of Chemistry, Tel Aviv University, Tel Aviv 69978, Israel
| | - Rinat Gepshtein
- Raymond and Beverly Sackler Faculty of Exact Sciences, School of Chemistry, Tel Aviv University, Tel Aviv 69978, Israel
| | - Dan Huppert
- Raymond and Beverly Sackler Faculty of Exact Sciences, School of Chemistry, Tel Aviv University, Tel Aviv 69978, Israel
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15
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Adhikary R, Barnes CA, Trampel RL, Wallace SJ, Kee TW, Petrich JW. Photoinduced trans-to-cis Isomerization of Cyclocurcumin. J Phys Chem B 2011; 115:10707-14. [DOI: 10.1021/jp200080s] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Ramkrishna Adhikary
- Department of Chemistry, Iowa State University, Ames, Iowa 50011-3111, United States
| | - Charles A. Barnes
- Department of Chemistry, Iowa State University, Ames, Iowa 50011-3111, United States
| | - Rachel L. Trampel
- Department of Chemistry, Iowa State University, Ames, Iowa 50011-3111, United States
| | - Samuel J. Wallace
- School of Chemistry and Physics, University of Adelaide, Adelaide, South Australia, 5005, Australia
| | - Tak W. Kee
- School of Chemistry and Physics, University of Adelaide, Adelaide, South Australia, 5005, Australia
| | - Jacob W. Petrich
- Department of Chemistry, Iowa State University, Ames, Iowa 50011-3111, United States
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