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Renault K, Chevalier A, Bignon J, Jacquemin D, Richard J, Romieu A. Coumarin‐Pyronin Hybrid Dyes: Synthesis, Fluorescence Properties and Theoretical Calculations**. CHEMPHOTOCHEM 2021. [DOI: 10.1002/cptc.202100069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Kévin Renault
- ICMUB, UMR 6302, CNRS Univ. Bourgogne Franche-Comté 9, Avenue Alain Savary 21000 Dijon France
| | - Arnaud Chevalier
- Institut de Chimie des Substances Naturelles CNRS UPR 2301 Université Paris-Saclay 1, Avenue de la Terrasse 91198 Gif-sur-Yvette France
| | - Jérôme Bignon
- Institut de Chimie des Substances Naturelles CNRS UPR 2301 Université Paris-Saclay 1, Avenue de la Terrasse 91198 Gif-sur-Yvette France
| | - Denis Jacquemin
- CEISAM Lab, UMR 6230 Université de Nantes CNRS 44000 Nantes France
| | - Jean‐Alexandre Richard
- Functional Molecules and Polymers Institute of Chemical and Engineering Sciences (ICES) Agency for Science, Technology and Research (A*STAR) 8 Biomedical Grove, Neuros, #07-01 138665 Singapore Singapore
- Research and Technology Development Illumina 29 Woodlands Industrial Park E1 757716 Singapore Singapore
| | - Anthony Romieu
- ICMUB, UMR 6302, CNRS Univ. Bourgogne Franche-Comté 9, Avenue Alain Savary 21000 Dijon France
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2
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Ong JX, Ang WH. Development of a Pre‐assembled Through‐Bond Energy Transfer (TBET) Fluorescent Probe for Ratiometric Sensing of Anticancer Platinum(ll) Complexes. Chem Asian J 2020; 15:1449-1455. [DOI: 10.1002/asia.202000157] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 03/06/2020] [Indexed: 01/28/2023]
Affiliation(s)
- Jun Xiang Ong
- Department of ChemistryNational University of Singapore 3 Science Drive 3 Singapore 117543 Singapore
| | - Wee Han Ang
- Department of ChemistryNational University of Singapore 3 Science Drive 3 Singapore 117543 Singapore
- NUS Graduate School for Integrative Sciences and EngineeringNational University of Singapore 28 Medical Drive Singapore 117456 Singapore
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3
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Veerabhadraswamy BN, Bhat SA, Hiremath US, Yelamaggad CV. Light-Emitting Chiral Nematic Dimers with Anomalous Odd-Even Effect. Chemphyschem 2019; 20:2836-2851. [PMID: 31517434 DOI: 10.1002/cphc.201900716] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 09/12/2019] [Indexed: 11/06/2022]
Abstract
In this report, based on the results derived from the extensive study into the thermal and photophysical properties, an anomalous mesomorphic behavior of photoluminescent, chiral nematic (N*) liquid crystalline dimers, belonging to two different series has been revealed. They comprise cholesterol and fluorescent three-ring Schiff base or salicylaldimine core interlinked via an ω-oxyalkanoyloxy spacer of varying length and parity. The effect of molecular structure on the liquid crystal (LC) behavior and photophysical properties of both the series has been probed by varying the length of the terminal n-alkoxy tails for a fixed (odd or even) parity of the spacer. The detailed investigations using complementary techniques not only evidenced the existence of the N* phase in all the dimers synthesized but also the occurrence of an intriguing odd-even effect; blue phases (BPs) exist in all the dimers comprising even-membered spacer, which surprisingly remains totally absent in their odd-membered counterparts. While the results reported hitherto are exactly opposite to the aforesaid findings, this atypical behavior has been interpreted in terms of the over-all shape of the dimers rendered by the orientation of terminal tails. Photophysical studies carried out clearly revealed the intrinsic light emitting feature of the dimers not only in their dilute solutions but also in their three condensed states viz., solid, N* phase, and isotropic liquid state; the emission intensities of the N* phase varies with the change in temperature, as expected. CD spectra of the N* phase recorded as a function of temperature show bisignate CD band characteristically, signifying large chiral correlations in the molecular self-assembly, while the origin of bands from positive to negative region suggests a right-handed twist of the N* helix.
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Affiliation(s)
- B N Veerabhadraswamy
- Centre for Nano and Soft Matter Sciences, P. B. No. 1329, Prof. U. R. Rao Road, Jalahalli, Bengaluru, 560 013, INDIA
| | - Sachin A Bhat
- Centre for Nano and Soft Matter Sciences, P. B. No. 1329, Prof. U. R. Rao Road, Jalahalli, Bengaluru, 560 013, INDIA
| | - Uma S Hiremath
- Centre for Nano and Soft Matter Sciences, P. B. No. 1329, Prof. U. R. Rao Road, Jalahalli, Bengaluru, 560 013, INDIA
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Santos FMF, Domínguez Z, Alcaide MM, Matos AI, Florindo HF, Candeias NR, Gois PMP, Pischel U. Highly Efficient Energy Transfer Cassettes by Assembly of Boronic Acid Derived Salicylidenehydrazone Complexes. CHEMPHOTOCHEM 2018. [DOI: 10.1002/cptc.201800150] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Fábio M. F. Santos
- Research Institute for Medicines (iMed.ULisboa) Faculty of PharmacyUniversity of Lisbon Av. Prof. Gama Pinto 1649-003 Lisbon Portugal
| | - Zoe Domínguez
- CIQSO-Center for Research in Sustainable Chemistry and Department of ChemistryUniversity of Huelva Campus de El Carmen s/n E-21071 Huelva Spain
| | - María M. Alcaide
- CIQSO-Center for Research in Sustainable Chemistry and Department of ChemistryUniversity of Huelva Campus de El Carmen s/n E-21071 Huelva Spain
- Institute for Chemical Research (CSIC-US) Av. Américo Vespucio 49 E-41092 Seville Spain
| | - Ana I. Matos
- Research Institute for Medicines (iMed.ULisboa) Faculty of PharmacyUniversity of Lisbon Av. Prof. Gama Pinto 1649-003 Lisbon Portugal
| | - Helena F. Florindo
- Research Institute for Medicines (iMed.ULisboa) Faculty of PharmacyUniversity of Lisbon Av. Prof. Gama Pinto 1649-003 Lisbon Portugal
| | - Nuno R. Candeias
- Laboratory of Chemistry and BioengineeringTampere University of Technology Korkeakoulunkatu 8 33101 Tampere Finland
| | - Pedro M. P. Gois
- Research Institute for Medicines (iMed.ULisboa) Faculty of PharmacyUniversity of Lisbon Av. Prof. Gama Pinto 1649-003 Lisbon Portugal
| | - Uwe Pischel
- CIQSO-Center for Research in Sustainable Chemistry and Department of ChemistryUniversity of Huelva Campus de El Carmen s/n E-21071 Huelva Spain
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Ong JX, Pang VYT, Tng LM, Ang WH. Pre-Assembled Coumarin-Rhodamine Scaffold for Ratiometric Sensing of Nitric Oxide and Hypochlorite. Chemistry 2018; 24:1870-1876. [DOI: 10.1002/chem.201703554] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2017] [Indexed: 01/11/2023]
Affiliation(s)
- Jun Xiang Ong
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 Singapore 117543 Singapore
| | - Victoria Yu Ting Pang
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 Singapore 117543 Singapore
| | - Li Min Tng
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 Singapore 117543 Singapore
| | - Wee Han Ang
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 Singapore 117543 Singapore
- NUS Graduate School for Integrative Sciences and Engineering; National University of Singapore; 28 Medical Drive Singapore 117456 Singapore
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6
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Cui X, Zhao J, Karatay A, Yaglioglu HG, Hayvali M, Küçüköz B. A Ru(bipyridine)3[PF6]2Complex with a Rhodamine Unit - Synthesis, Photophysical Properties, and Application in Acid-Controllable Triplet-Triplet Annihilation Upconversion. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201600755] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Xiaoneng Cui
- State Key Laboratory of Fine Chemicals; Dalian University of Technology; 116024 Dalian P. R. China
| | - Jianzhang Zhao
- State Key Laboratory of Fine Chemicals; Dalian University of Technology; 116024 Dalian P. R. China
| | - Ahmet Karatay
- Department of Engineering Physics; Faculty of Engineering; Ankara University; 06100 Beşevler, Ankara Turkey
| | - Halime Gul Yaglioglu
- Department of Engineering Physics; Faculty of Engineering; Ankara University; 06100 Beşevler, Ankara Turkey
| | - Mustafa Hayvali
- Department of Chemistry; Faculty of Science; Ankara University; 06100 Beşevler Ankara Turkey
| | - Betül Küçüköz
- Department of Engineering Physics; Faculty of Engineering; Ankara University; 06100 Beşevler, Ankara Turkey
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7
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Yue Y, Huo F, Lee S, Yin C, Yoon J, Chao J, Zhang Y, Cheng F. A Dual Colorimetric/Fluorescence System for Determining pH Based on the Nucleophilic Addition Reaction of an o
-Hydroxymerocyanine Dye. Chemistry 2015; 22:1239-43. [DOI: 10.1002/chem.201504395] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Indexed: 12/21/2022]
Affiliation(s)
- Yongkang Yue
- Institute of Molecular Science; Shanxi University; Taiyuan 030-006 P. R. China
| | - Fangjun Huo
- Research Institute of Applied Chemistry; Shanxi University; Taiyuan 030-006 P. R. China
- Department of Chemistry; University of Missouri; 601 South college Avenue Columbia Missouri 65211 USA
| | - Songyi Lee
- Department of Chemistry and Nano Science; Ewha Womans University; Seoul 120-750 Korea
| | - Caixia Yin
- Institute of Molecular Science; Shanxi University; Taiyuan 030-006 P. R. China
- Department of Chemistry; University of Missouri; 601 South college Avenue Columbia Missouri 65211 USA
| | - Juyoung Yoon
- Department of Chemistry and Nano Science; Ewha Womans University; Seoul 120-750 Korea
| | - Jianbin Chao
- Research Institute of Applied Chemistry; Shanxi University; Taiyuan 030-006 P. R. China
| | - Yongbin Zhang
- Research Institute of Applied Chemistry; Shanxi University; Taiyuan 030-006 P. R. China
| | - Fangqin Cheng
- Institute of Molecular Science; Shanxi University; Taiyuan 030-006 P. R. China
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8
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Zhang Y, Meng N, Miao J, Zhao B. A Ratiometric Fluorescent Probe Based on a Through‐Bond Energy Transfer (TBET) System for Imaging HOCl in Living Cells. Chemistry 2015; 21:19058-63. [DOI: 10.1002/chem.201503500] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Indexed: 12/21/2022]
Affiliation(s)
- Yan‐Ru Zhang
- Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100 (P.R. China)
| | - Ning Meng
- Institute of Developmental Biology, School of Life Science, Shandong University, Jinan 250100 (P.R. China)
- School of Biological Science and Technology, University of Jinan, Jinan 250022 (P.R. China)
| | - Jun‐Ying Miao
- Institute of Developmental Biology, School of Life Science, Shandong University, Jinan 250100 (P.R. China)
| | - Bao‐Xiang Zhao
- Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100 (P.R. China)
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Kölle P, Pugliesi I, Langhals H, Wilcken R, Esterbauer AJ, de Vivie-Riedle R, Riedle E. Hole-transfer induced energy transfer in perylene diimide dyads with a donor–spacer–acceptor motif. Phys Chem Chem Phys 2015; 17:25061-72. [DOI: 10.1039/c5cp02981c] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Pump–probe spectroscopy, time resolved fluorescence, chemical variation and quantum chemical calculations reveal an efficient energy transfer mechanism enabled by a bright charge transfer state located on the spacer.
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Affiliation(s)
- Patrick Kölle
- Department of Chemistry
- Ludwig-Maximilians-Universität München
- 81377 München
- Germany
| | - Igor Pugliesi
- Lehrstuhl für BioMolekulare Optik
- Ludwig-Maximilians-Universität München
- 80538 München
- Germany
| | - Heinz Langhals
- Department of Chemistry
- Ludwig-Maximilians-Universität München
- 81377 München
- Germany
| | - Roland Wilcken
- Lehrstuhl für BioMolekulare Optik
- Ludwig-Maximilians-Universität München
- 80538 München
- Germany
| | | | | | - Eberhard Riedle
- Lehrstuhl für BioMolekulare Optik
- Ludwig-Maximilians-Universität München
- 80538 München
- Germany
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Su D, Teoh CL, Kang NY, Yu X, Sahu S, Chang YT. Synthesis and systematic evaluation of dark resonance energy transfer (DRET)-based library and its application in cell imaging. Chem Asian J 2014; 10:581-5. [PMID: 25530300 DOI: 10.1002/asia.201403257] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2014] [Indexed: 12/22/2022]
Abstract
In this paper, we report a new strategy for constructing a dye library with large Stokes shifts. By coupling a dark donor with BODIPY acceptors of tunable high quantum yield, a novel dark resonance energy transfer (DRET)-based library, named BNM, has been synthesized. Upon excitation of the dark donor (BDN) at 490 nm, the absorbed energy is transferred to the acceptor (BDM) with high efficiency, which was tunable in a broad range from 557 nm to 716 nm, with a high quantum yield of up to 0.8. It is noteworthy to mention that the majority of the non-radiative energy loss of the donor was converted into the acceptor's fluorescence output with a minimum leak of donor emission. Fluorescence imaging tested in live cells showed that the BNM compounds are cell-permeable and can also be employed for live-cell imaging. This is a new library which can be excited through a dark donor allowing for strong fluorescence emission in a wide range of wavelengths. Thus, the BNM library is well suited for high-throughput screening or multiplex experiments in biological applications by using a single laser excitation source.
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Affiliation(s)
- Dongdong Su
- Department of Chemistry & MedChem Program of Life Sciences, Institute National University of Singapore, 117543, Singapore (Singapore), Fax: (+65) 6779-1691; Singapore Bioimaging Consortium, Agency for Science Technology and Research (A*STAR), 138667, Singapore (Singapore)
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11
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Hu L, Pei C, Li Z, Wang C, Yang G, Sun W. Synthesis and photophysics of a broadband absorbing texaphyrin derivative bearing a Rhodamine 6G motif. Org Chem Front 2014. [DOI: 10.1039/c4qo00018h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A texaphyrin derivative with Rhodamine 6G attached via a CC bond was synthesized and its photophysics was systematically investigated.
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Affiliation(s)
- Lei Hu
- Department of Chemistry and Biochemistry
- North Dakota State University
- Fargo, USA
- College of Chemistry and Chemical Engineering
- Hubei University
| | - Chengkui Pei
- Department of Chemistry and Biochemistry
- North Dakota State University
- Fargo, USA
| | - Zhongjing Li
- Department of Chemistry and Biochemistry
- North Dakota State University
- Fargo, USA
| | - Chengzhe Wang
- Department of Chemistry and Biochemistry
- North Dakota State University
- Fargo, USA
| | - Guichun Yang
- College of Chemistry and Chemical Engineering
- Hubei University
- Wuhan 430062, P. R. China
| | - Wenfang Sun
- Department of Chemistry and Biochemistry
- North Dakota State University
- Fargo, USA
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Huang L, Cui X, Therrien B, Zhao J. Energy-funneling-based broadband visible-light-absorbing bodipy-C60 triads and tetrads as dual functional heavy-atom-free organic triplet photosensitizers for photocatalytic organic reactions. Chemistry 2013; 19:17472-82. [PMID: 24318269 DOI: 10.1002/chem.201302492] [Citation(s) in RCA: 91] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2013] [Indexed: 01/19/2023]
Abstract
C60-bodipy triads and tetrads based on the energy-funneling effect that show broadband absorption in the visible region have been prepared as novel triplet photosensitizers. The new photosensitizers contain two or three different light-harvesting antennae associated with different absorption wavelengths, resulting in a broad absorption band (450-650 nm). The panchromatic excitation energy harvested by the bodipy moieties is funneled into a spin converter (C60), thus ensuring intersystem crossing and population of the triplet state. Nanosecond time-resolved transient absorption and spin density analysis indicated that the T1 state is localized on either C60 or the antennae, depending on the T1 energy levels of the two entities. The antenna-localized T1 state shows a longer lifetime (τ(T)=132.9 μs) than the C60-localized T1 state (ca. 27.4 μs). We found that the C60 triads and tetrads can be used as dual functional photocatalysts, that is, singlet oxygen ((1)O2) and superoxide radical anion (O2(.-)) photosensitizers. In the photooxidation of naphthol to juglone, the (1)O2 photosensitizing ability of the C60 triad is a factor of 8.9 greater than the conventional triplet photosensitizers tetraphenylporphyrin and methylene blue. The C60 dyads and triads were also used as photocatalysts for O2(.-)-mediated aerobic oxidation of aromatic boronic acids to produce phenols. The reaction times were greatly reduced compared with when [Ru(bpy)3Cl2] was used as photocatalyst. Our study of triplet photosensitizers has shown that broadband absorption in the visible spectral region and long-lived triplet excited states can be useful for the design of new heavy-atom-free organic triplet photosensitizers and for the application of these triplet photosensitizers in photo-organocatalysis.
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Affiliation(s)
- Ling Huang
- State Key Laboratory of Fine Chemicals, E-208, West Campus, Dalian University of Technology, Dalian 116024 (P.R. China), Fax: (+86) 411-8498-6236
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Gartzia-Rivero L, Yu H, Bañuelos J, López-Arbeloa I, Costela A, Garcia-Moreno I, Xiao Y. Photophysical and laser properties of cassettes based on a BODIPY and rhodamine pair. Chem Asian J 2013; 8:3133-41. [PMID: 24023008 DOI: 10.1002/asia.201300857] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2013] [Indexed: 01/18/2023]
Abstract
This work deals with the synthesis and the photophysical and laser properties of new BODIPY-rhodamine cassettes. These dyads differ in their rigid and conjugated spacer group (phenyl or acetylenephenyl) and in their linking positions (meta or para). The photophysical properties of these cassettes are controlled by the formation/opening of the spirolactone ring, which, in turn, switches off/on an energy-transfer process between the chromophores. Herein, we thoroughly describe the influence of the attached spacer group, as well as the distance and orientation between the donor-acceptor pair, on the excitation energy transfer. The observed fast dynamics and efficiency suggest that the process mainly takes place "through-bond", although the "through-space" mechanism also contributes to the whole process. As a result, efficient laser emission from the rhodamine is achieved upon excitation of the BODIPY, in particular for the cassette that contains an acetylenephenyl spacer group in a para disposition.
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Affiliation(s)
- Leire Gartzia-Rivero
- Departamento de Química Física, Universidad del País Vasco (UPV-EHU), Aptdo 644, 48080, Bilbao (Spain)
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14
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Wee KR, Cho YJ, Song JK, Kang SO. Multiple Photoluminescence from 1,2-Dinaphthyl-ortho-Carborane. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201304321] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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15
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Wee KR, Cho YJ, Song JK, Kang SO. Multiple photoluminescence from 1,2-dinaphthyl-ortho-carborane. Angew Chem Int Ed Engl 2013; 52:9682-5. [PMID: 23881691 DOI: 10.1002/anie.201304321] [Citation(s) in RCA: 122] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2013] [Indexed: 11/12/2022]
Affiliation(s)
- Kyung-Ryang Wee
- Department of Advanced Materials Chemistry, Sejong-ro 2511 Korea University, Sejong-city 339-700, South Korea
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Fernández-Bachiller MI, Horatscheck A, Lisurek M, Rademann J. Alzheimer's disease: identification and development of β-secretase (BACE-1) binding fragments and inhibitors by dynamic ligation screening (DLS). ChemMedChem 2013; 8:1041-56. [PMID: 23757181 DOI: 10.1002/cmdc.201300078] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2013] [Revised: 04/25/2013] [Indexed: 11/12/2022]
Abstract
The application of dynamic ligation screening (DLS), a methodology for fragment-based drug discovery (FBDD), to the aspartic protease β-secretase (BACE-1) is reported. For this purpose, three new fluorescence resonance energy transfer (FRET) substrates were designed and synthesized. Their kinetic parameters (Vmax , KM , and kcat ) were determined and compared with a commercial substrate. Secondly, a peptide aldehyde was designed as a chemically reactive inhibitor (CRI) based on the Swedish mutation substrate sequence. Incubation of this CRI with the protease, a FRET substrate, and one amine per well taken from an amine library, which was assembled by a maximum common substructure (MCS) approach, revealed the fragment 3-(3-aminophenyl)-2H-chromen-2-one (1) to be a competitive BACE-1 inhibitor that enhanced the activity of the CRI. Irreversibly formed fragment combination products of 1 with the initial peptide sequence were active and confirmed the targeting of the active site through the ethane-1,2-diamine isostere. Finally, structure-assisted combination of fragment 1 with secondary fragments that target the S1 site in hit optimization yielded novel, entirely fragment-based BACE-1 inhibitors with up to 30-fold improved binding affinity. Interactions with the protein were explained by molecular modeling studies, which indicate that the new fragment combinations interact with the catalytic aspartic acid dyad, as well as with the adjacent binding sites required for potency.
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Affiliation(s)
- María Isabel Fernández-Bachiller
- Medicinal Chemistry Department, Leibniz Institut für Molekulare Pharmakologie (FMP) Campus Berlin-Buch, Robert-Rössle Str. 10, 13125 Berlin, Germany
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Liu J, Sun YQ, Zhang J, Yang T, Cao J, Zhang L, Guo W. A ratiometric fluorescent probe for biological signaling molecule H2S: fast response and high selectivity. Chemistry 2013; 19:4717-22. [PMID: 23460538 DOI: 10.1002/chem.201300455] [Citation(s) in RCA: 115] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2012] [Revised: 02/05/2013] [Indexed: 11/07/2022]
Affiliation(s)
- Jing Liu
- School of Chemistry and Chemical Engineering, Shanxi University, 92 Wucheng Road, Taiyuan 030006, PR China
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Lu H, Wang Q, Gai L, Li Z, Deng Y, Xiao X, Lai G, Shen Z. Tuning the Solid-State Luminescence of BODIPY Derivatives with Bulky Arylsilyl Groups: Synthesis and Spectroscopic Properties. Chemistry 2012; 18:7852-61. [DOI: 10.1002/chem.201200169] [Citation(s) in RCA: 122] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2012] [Revised: 03/16/2012] [Indexed: 11/11/2022]
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Huang L, Zeng L, Guo H, Wu W, Wu W, Ji S, Zhao J. Room-Temperature Long-Lived 3IL Excited State of Rhodamine in an NN PtII Bis(acetylide) Complex with Intense Visible-Light Absorption. Eur J Inorg Chem 2011. [DOI: 10.1002/ejic.201100777] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Yu H, Xiao Y, Guo H, Qian X. Convenient and Efficient FRET Platform Featuring a Rigid Biphenyl Spacer between Rhodamine and BODIPY: Transformation of ‘Turn‐On’ Sensors into Ratiometric Ones with Dual Emission. Chemistry 2011; 17:3179-91. [DOI: 10.1002/chem.201002498] [Citation(s) in RCA: 134] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2010] [Indexed: 11/07/2022]
Affiliation(s)
- Haibo Yu
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Zhongshan Road 158, Dalian, 116012 (P.R. China), Fax: (+86) 411‐83673488
| | - Yi Xiao
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Zhongshan Road 158, Dalian, 116012 (P.R. China), Fax: (+86) 411‐83673488
| | - Haiying Guo
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Zhongshan Road 158, Dalian, 116012 (P.R. China), Fax: (+86) 411‐83673488
| | - Xuhong Qian
- Laboratory of Chemical Biology, East China University of Science and Technology, Meilong Road 130, Shanghai, 200237 (P.R. China), Fax: (+86) 21‐64252603
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Houjou H, Takezawa S, Oyamada I, Matsumura K, Seino H, Yoshikawa I, Mizobe Y, Araki K. Blue/red linear dichroic emission from a highly anisotropic crystal of triarylmethane dye conjugated with phenoxo-zinc complexes. Chemistry 2011; 17:1122-7. [PMID: 21243678 DOI: 10.1002/chem.201002950] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2010] [Indexed: 11/08/2022]
Abstract
We have developed a novel triphenylmethane-based hexanuclear zinc complex that exhibits peculiar photochemical and photophysical properties. Upon UV irradiation, the compound turned from colorless to reddish purple, while the color of emission turned from blue to red. The color change was attributed to an oxidation of the ligand part. It was suggested that an intramolecular energy-transfer mechanism operates to give rise to the red emission. The UV treatment of a single crystal results in simultaneous emission of orthogonally polarized blue and red light. This color switching, namely linear dichroic emission was so distinct that one can recognize with by sight through optical microscope. The columnar arrangement of molecules in the crystal clearly accounts for the observed polarization of the emission.
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Affiliation(s)
- Hirohiko Houjou
- Institute of Industrial Science, University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505, Japan.
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Ma TH, Dong M, Dong YM, Wang YW, Peng Y. A Unique Water-Tuning Dual-Channel Fluorescence-Enhanced Sensor for Aluminum Ions Based on a Hybrid Ligand from a 1,1′-Binaphthyl Scaffold and an Amino Acid. Chemistry 2010; 16:10313-8. [DOI: 10.1002/chem.201001431] [Citation(s) in RCA: 117] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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