1
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Saladin L, Breton V, Le Berruyer V, Nazac P, Lequeu T, Didier P, Danglot L, Collot M. Targeted Photoconvertible BODIPYs Based on Directed Photooxidation-Induced Conversion for Applications in Photoconversion and Live Super-Resolution Imaging. J Am Chem Soc 2024; 146:17456-17473. [PMID: 38861358 DOI: 10.1021/jacs.4c05231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2024]
Abstract
Photomodulable fluorescent probes are drawing increasing attention due to their applications in advanced bioimaging. Whereas photoconvertible probes can be advantageously used in tracking, photoswitchable probes constitute key tools for single-molecule localization microscopy to perform super-resolution imaging. Herein, we shed light on a red and far-red BODIPY, namely, BDP-576 and BDP-650, which possess both properties of conversion and switching. Our study demonstrates that these pyrrolyl-BODIPYs convert into typical green- and red-emitting BODIPYs that are perfectly adapted to microscopy. We also showed that this pyrrolyl-BODIPYs undergo Directed Photooxidation Induced Conversion, a photoconversion mechanism that we recently introduced, where the pyrrole moiety plays a central role. These unique features were used to develop targeted photoconvertible probes toward different organelles or subcellular units (plasma membrane, mitochondria, nucleus, actin, Golgi apparatus, etc.) using chemical targeting moieties and a Halo tag. We notably showed that BDP-650 could be used to track intracellular vesicles over more than 20 min in two-color imagings with laser scanning confocal microscopy, demonstrating its robustness. The switching properties of these photoconverters were studied at the single-molecule level and were then successfully used in live single-molecule localization microscopy in epithelial cells and neurons. Both membrane- and mitochondria- targeted probes could be used to decipher membrane 3D architecture and mitochondrial dynamics at the nanoscale. This study builds a bridge between the photoconversion and photoswitching properties of probes undergoing directed photooxidation and shows the versatility and efficacy of this mechanism in advanced live imaging.
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Affiliation(s)
- Lazare Saladin
- Laboratoire de Bioimagerie et Pathologies, UMR 7021, CNRS/Université de Strasbourg, 74 route du Rhin, 67401 Illkirch-Graffenstaden, France
| | - Victor Breton
- Université Paris Cité, Institute of Psychiatry and Neuroscience of Paris (IPNP), INSERM U1266, Membrane Traffic in Healthy and Diseased Brain team; NeurImag core facility scientific director, 75014 Paris, France
| | - Valentine Le Berruyer
- Laboratoire de Bioimagerie et Pathologies, UMR 7021, CNRS/Université de Strasbourg, 74 route du Rhin, 67401 Illkirch-Graffenstaden, France
- Chemistry of Photoresponsive Systems, Laboratoire de Chémo-Biologie Synthétique et Thérapeutique (CBST) UMR 7199, CNRS, Université de Strasbourg, F-67400 Illkirch, France
| | - Paul Nazac
- Université Paris Cité, Institute of Psychiatry and Neuroscience of Paris (IPNP), INSERM U1266, Membrane Traffic in Healthy and Diseased Brain team; NeurImag core facility scientific director, 75014 Paris, France
| | - Thiebault Lequeu
- Laboratoire de Bioimagerie et Pathologies, UMR 7021, CNRS/Université de Strasbourg, 74 route du Rhin, 67401 Illkirch-Graffenstaden, France
| | - Pascal Didier
- Laboratoire de Bioimagerie et Pathologies, UMR 7021, CNRS/Université de Strasbourg, 74 route du Rhin, 67401 Illkirch-Graffenstaden, France
| | - Lydia Danglot
- Université Paris Cité, Institute of Psychiatry and Neuroscience of Paris (IPNP), INSERM U1266, Membrane Traffic in healthy and Diseased brain team; NeurImag core facility scientific director, 75014 Paris, France
| | - Mayeul Collot
- Laboratoire de Bioimagerie et Pathologies, UMR 7021, CNRS/Université de Strasbourg, 74 route du Rhin, 67401 Illkirch-Graffenstaden, France
- Chemistry of Photoresponsive Systems, Laboratoire de Chémo-Biologie Synthétique et Thérapeutique (CBST) UMR 7199, CNRS, Université de Strasbourg, F-67400 Illkirch, France
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2
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Minkovska S, Hadjichristov GB, Neacsu A, Chihaia V, Fedorov YV. Photoswitchable Photochromic Chelating Spironaphthoxazines: Synthesis, Photophysical Properties, Quantum-Chemical Calculations, and Complexation Ability. ACS OMEGA 2024; 9:4144-4161. [PMID: 38313484 PMCID: PMC10831966 DOI: 10.1021/acsomega.3c06434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 12/08/2023] [Accepted: 12/14/2023] [Indexed: 02/06/2024]
Abstract
The stable and efficient photochromic and photoswitchable molecular systems designed from spirooxazines are of increasing scientific and practical interest because of their present and future applications in advanced technologies. Among these compounds, chelating spironaphthoxazines have received widespread attention due to their efficient optical response after complexation with some metal ions being of biomedical interest and environmental importance, as well as their good cycle performance and high reliability, especially by metal ion sensing. In this mini-review, we summarize our results in the design of novel photoswitchable chelating spironaphthoxazines with specific substituents in their naphthoxazine or indoline ring systems in view of recent progress in the development of such molecular systems and their applications as metal ion sensors. The design, synthesis methods, and photoresponse of such spirooxazine derivatives relevant to their applications, as well as quantum-chemical calculations for these compounds, are presented. Examples of various design concepts are discussed, such as sulfobutyl, hydroxyl, benzothiazolyl, or ester and carboxylic acid as substituents in the chelating spironaphthoxazine molecules. Further developments and improvements of this interesting and promising kind of molecular photoswitches are outlined.
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Affiliation(s)
- Stela Minkovska
- Institute
of Catalysis, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl.11, 1113 Sofia, Bulgaria
| | - Georgi B. Hadjichristov
- Georgi
Nadjakov Institute of Solid State Physics, Bulgarian Academy of Sciences, 72 Tzarigradsko Chaussee Blvd., BG-1784 Sofia, Bulgaria
| | - Andreea Neacsu
- Institute
of Physical Chemistry “Ilie Murgulescu”, Romanian Academy, Spl. Independentei 202, Bucharest 060021, Romania
| | - Viorel Chihaia
- Institute
of Physical Chemistry “Ilie Murgulescu”, Romanian Academy, Spl. Independentei 202, Bucharest 060021, Romania
| | - Yury V. Fedorov
- A.
N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilova str., 28, Moscow 119991, Russia
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3
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Torii K, Benson S, Hori Y, Vendrell M, Kikuchi K. No-wash fluorogenic labeling of proteins for reversible photoswitching in live cells. Chem Sci 2024; 15:1393-1401. [PMID: 38274070 PMCID: PMC10806661 DOI: 10.1039/d3sc04953a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 12/16/2023] [Indexed: 01/27/2024] Open
Abstract
Photoswitchable fluorescent molecules (PSFMs) are positioned as valuable tools for biomolecule localization tracking and super-resolution imaging technologies due to their unique ability to reversibly control fluorescence intensity upon light irradiation. Despite the high demand for PSFMs that are suitable for live-cell imaging, no general method has been reported that enables reversible fluorescence control on proteins of interest in living cells. Herein, we have established a platform to realize reversible fluorescence switching in living cells by adapting a protein labeling system. We have developed a new PSFM, named HTL-Trp-BODIPY-FF, which exhibits strong fluorogenicity upon recognition of Halo-tag protein and reversible fluorescence photoswitching in living cells. This is the first example of a PSFM that can be applicable to a general-purpose Halo-tag protein labeling system for no-wash live-cell imaging.
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Affiliation(s)
- Kenji Torii
- Graduate School of Engineering, Osaka University Suita Osaka 565-0871 Japan
| | - Sam Benson
- Centre for Inflammation Research, The University of Edinburgh Edinburgh EH16 4UU UK
- IRR Chemistry Hub, Institute for Regeneration and Repair, The University of Edinburgh Edinburgh EH16 4UU UK
| | - Yuichiro Hori
- Faculty of Science, Kyushu University Fukuoka Fukuoka 819-0395 Japan
| | - Marc Vendrell
- Centre for Inflammation Research, The University of Edinburgh Edinburgh EH16 4UU UK
- IRR Chemistry Hub, Institute for Regeneration and Repair, The University of Edinburgh Edinburgh EH16 4UU UK
| | - Kazuya Kikuchi
- Graduate School of Engineering, Osaka University Suita Osaka 565-0871 Japan
- Immunology Frontier Research Center, Osaka University Suita Osaka 565-0871 Japan
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4
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Qiu S, Frawley AT, Leslie KG, Anderson HL. How do donor and acceptor substituents change the photophysical and photochemical behavior of dithienylethenes? The search for a water-soluble visible-light photoswitch. Chem Sci 2023; 14:9123-9135. [PMID: 37655022 PMCID: PMC10466371 DOI: 10.1039/d3sc01458d] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 07/28/2023] [Indexed: 09/02/2023] Open
Abstract
Dithienylethenes are a type of diarylethene and they constitute one of the most widely studied classes of photoswitch, yet there have been no systematic studies of how electron-donor or -acceptor substituents affect their properties. Here we report eight dithienylethenes bearing push-push, pull-pull and push-pull substitution patterns with different lengths of conjugation in the backbone and investigate their photophysical and photochemical properties. Donor-acceptor interactions in the closed forms of push-pull dithienylethenes shift their absorption spectra into the near-infrared region (λmax ≈ 800 nm). The push-pull systems also exhibit low quantum yields for photochemical electrocyclization, and computational studies indicate that this can be attributed to stabilization of the parallel, rather than anti-parallel, conformations. The pull-pull systems have the highest quantum yields for switching in both directions, ring-closure and ring-opening. The chloride salt of a pull-pull DTE, with alkynes on both arms, is the first water-soluble dithienylethene that can achieve >95% photostationary state distribution in both directions with visible light. It has excellent fatigue resistance: in aqueous solution on irradiation at 365 nm, the photochemical quantum yields for switching and decomposition are 0.15 and 2.6 × 10-5 respectively, i.e. decomposition is more than 5000 times slower than photoswitching. These properties make it a promising candidate for biological applications such as super-resolution microscopy and photopharmacology.
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Affiliation(s)
- Sili Qiu
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford Oxford OX1 3TA UK
| | - Andrew T Frawley
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford Oxford OX1 3TA UK
| | - Kathryn G Leslie
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford Oxford OX1 3TA UK
| | - Harry L Anderson
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford Oxford OX1 3TA UK
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5
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Fauvel S, Riquelme AJ, Andrés Castán JM, Mwalukuku VM, Kervella Y, Challuri VK, Sauvage F, Narbey S, Maldivi P, Aumaître C, Demadrille R. Push-pull photochromic dyes for semi-transparent solar cells with light-adjustable optical properties and high color-rendering index. Chem Sci 2023; 14:8497-8506. [PMID: 37592994 PMCID: PMC10430641 DOI: 10.1039/d3sc02328a] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Accepted: 07/10/2023] [Indexed: 08/19/2023] Open
Abstract
We report the design, synthesis and characterization of push-pull photochromic naphthopyran dyes, incorporating different carbazole moieties as the electron-donor group for use in dye-sensitized solar cells. Compared to a reference dye incorporating a diphenylamine-type donor moiety, the introduction of functionalized carbazoles allows for a hypsochromic shift of the absorption of the coloured isomers of the dyes in the visible region and a better tuning of their spectra to the photopic response of the human eye. Under illumination, the molecules exhibit a broad absorption with a maximum comprised between 546 nm and 571 nm in solution and they reveal relatively fast discoloration kinetics. By using these dyes to fabricate photochromic solar cells whose optical and photovoltaic properties vary with the light exposure, we have achieved a PCE of up to 3% in opaque cells. Using these molecules in semi-transparent solar cells with different electrolytes, a PCE of 2.3% was achieved. We also produced a semi-transparent mini-module with an average visible transmittance varying between 66% and 50% and a colour rendering index around 95 in both the uncoloured and coloured states.
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Affiliation(s)
- Samuel Fauvel
- Université Grenoble Alpes, CEA, CNRS, IRIG-SyMMES F-38000 Grenoble France
| | - Antonio J Riquelme
- Université Grenoble Alpes, CEA, CNRS, IRIG-SyMMES F-38000 Grenoble France
| | | | | | - Yann Kervella
- Université Grenoble Alpes, CEA, CNRS, IRIG-SyMMES F-38000 Grenoble France
| | | | - Frédéric Sauvage
- Laboratoire de Réactivité et Chimie des Solides, CNRS UMR7314, Université de Picardie Jules Verne, Hub de l'énergie 15 Rue Baudelocque 80039 Amiens France
| | | | - Pascale Maldivi
- Université Grenoble Alpes, CEA, CNRS, IRIG-SyMMES F-38000 Grenoble France
| | - Cyril Aumaître
- Université Grenoble Alpes, CEA, CNRS, IRIG-SyMMES F-38000 Grenoble France
| | - Renaud Demadrille
- Université Grenoble Alpes, CEA, CNRS, IRIG-SyMMES F-38000 Grenoble France
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6
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Frawley AT, Leslie KG, Wycisk V, Galiani S, Shrestha D, Eggeling C, Anderson HL. A Photoswitchable Solvatochromic Dye for Probing Membrane Ordering by RESOLFT Super-resolution Microscopy. Chemphyschem 2023; 24:e202300125. [PMID: 36946252 DOI: 10.1002/cphc.202300125] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 03/20/2023] [Accepted: 03/21/2023] [Indexed: 03/23/2023]
Abstract
A switchable solvatochromic fluorescent dyad can be used to map ordering of lipids in vesicle membranes at a resolution better than the diffraction limit. Combining a Nile Red fluorophore with a photochromic spironaphthoxazine quencher allows the fluorescence to be controlled using visible light, via photoswitching and FRET quenching. Synthetic lipid vesicles of varying composition were imaged with an average 2.5-fold resolution enhancement, compared to the confocal images. Ratiometric detection was used to probe the membrane polarity, and domains of different lipid ordering were distinguished within the same membrane.
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Affiliation(s)
- Andrew T Frawley
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford, OX1 3TA, UK
| | - Kathryn G Leslie
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford, OX1 3TA, UK
| | - Virginia Wycisk
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford, OX1 3TA, UK
| | - Silvia Galiani
- MRC Human Immunology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, OX3 9DS, UK
| | - Dilip Shrestha
- MRC Human Immunology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, OX3 9DS, UK
| | - Christian Eggeling
- MRC Human Immunology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, OX3 9DS, UK
- Institute of Applied Optics and Biophysics, Friedrich-Schiller-University Jena, Max-Wien-Platz 4, 07743, Jena, Germany
- Leibniz Institute of Photonic Technology e.V., Albert-Einstein-Strasse 9, 07745, Jena, Germany
- Jena Center for Soft Matter (JCSM), Philosophenweg 7, 07743, Jena, Germany
| | - Harry L Anderson
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford, OX1 3TA, UK
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7
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Olesińska-Mönch M, Deo C. Small-molecule photoswitches for fluorescence bioimaging: engineering and applications. Chem Commun (Camb) 2023; 59:660-669. [PMID: 36622788 DOI: 10.1039/d2cc05870g] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Fluorescence microscopy has revolutionised our understanding of biological systems, enabling the visualisation of biomolecular structures and dynamics in complex systems. The possibility to reversibly control the optical or biochemical properties of fluorophores can unlock advanced applications ranging from super-resolution microscopy to the design of multi-stimuli responsive and functional biosensors. In this Highlight, we review recent progress in small-molecule photoswitches applied to biological imaging with an emphasis on molecular engineering strategies and promising applications, while underlining the main challenges in their design and implementation.
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Affiliation(s)
- Magdalena Olesińska-Mönch
- Cell Biology and Biophysics Unit, European Molecular Biology Laboratory (EMBL), Heidelberg 69117, Germany.
| | - Claire Deo
- Cell Biology and Biophysics Unit, European Molecular Biology Laboratory (EMBL), Heidelberg 69117, Germany.
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8
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Kikuchi K, Adair LD, Lin J, New EJ, Kaur A. Photochemical Mechanisms of Fluorophores Employed in Single-Molecule Localization Microscopy. Angew Chem Int Ed Engl 2023; 62:e202204745. [PMID: 36177530 PMCID: PMC10100239 DOI: 10.1002/anie.202204745] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Indexed: 02/02/2023]
Abstract
Decoding cellular processes requires visualization of the spatial distribution and dynamic interactions of biomolecules. It is therefore not surprising that innovations in imaging technologies have facilitated advances in biomedical research. The advent of super-resolution imaging technologies has empowered biomedical researchers with the ability to answer long-standing questions about cellular processes at an entirely new level. Fluorescent probes greatly enhance the specificity and resolution of super-resolution imaging experiments. Here, we introduce key super-resolution imaging technologies, with a brief discussion on single-molecule localization microscopy (SMLM). We evaluate the chemistry and photochemical mechanisms of fluorescent probes employed in SMLM. This Review provides guidance on the identification and adoption of fluorescent probes in single molecule localization microscopy to inspire the design of next-generation fluorescent probes amenable to single-molecule imaging.
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Affiliation(s)
- Kai Kikuchi
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Melbourne, VIC 305, Australia.,School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, Australia.,The University of Sydney Nano Institute, The University of Sydney, Sydney, NSW 2006, Australia
| | - Liam D Adair
- The University of Sydney Nano Institute, The University of Sydney, Sydney, NSW 2006, Australia.,School of Chemistry, The University of Sydney, Sydney, NSW 2006, Australia.,Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, The University of Sydney, Sydney, NSW 2006, Australia
| | - Jiarun Lin
- The University of Sydney Nano Institute, The University of Sydney, Sydney, NSW 2006, Australia.,School of Chemistry, The University of Sydney, Sydney, NSW 2006, Australia
| | - Elizabeth J New
- The University of Sydney Nano Institute, The University of Sydney, Sydney, NSW 2006, Australia.,School of Chemistry, The University of Sydney, Sydney, NSW 2006, Australia.,Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, The University of Sydney, Sydney, NSW 2006, Australia
| | - Amandeep Kaur
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Melbourne, VIC 305, Australia.,School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, Australia.,The University of Sydney Nano Institute, The University of Sydney, Sydney, NSW 2006, Australia
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9
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Hemipiperazines as peptide-derived molecular photoswitches with low-nanomolar cytotoxicity. Nat Commun 2022; 13:6066. [PMID: 36241620 PMCID: PMC9568564 DOI: 10.1038/s41467-022-33750-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Accepted: 09/30/2022] [Indexed: 12/24/2022] Open
Abstract
Molecular photoswitches transform light energy into reversible structural changes. Their combination with known pharmacophores often allows for photomodulation of the biological activity. The effort to apply such compounds in photopharmacology as light-activated pro-drugs is, however, hampered by serious activity reduction upon pharmacophore modifications, or limited biostability. Here we report that a potent antimitotic agent plinabulin and its derivatives demonstrate up to 56-fold reversible activity photomodulation. Alternatively, irreversible photoactivation with cyan light can enhance the cytotoxicity up to three orders of magnitude-all without compromising the original activity level, as the original pharmacophore structure is unchanged. This occurs due to the presence of a peptide-derived photoswitchable motif hemipiperazine inside the plinabulin scaffold. Furthermore, we systematically describe photochromism of these thermally stable and biocompatible hemipiperazines, as well as a photoswitchable fluorophore derived from plinabulin. The latter may further expand the applicability of hemipiperazine photochromism towards super-resolution microscopy.
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10
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Andrés Castán JM, Mwalukuku VM, Riquelme AJ, Liotier J, Huaulmé Q, Anta JA, Maldivi P, Demadrille R. Photochromic spiro-indoline naphthoxazines and naphthopyrans in dye-sensitized solar cells. MATERIALS CHEMISTRY FRONTIERS 2022; 6:2994-3005. [PMID: 36324610 PMCID: PMC9549531 DOI: 10.1039/d2qm00375a] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 06/22/2022] [Indexed: 06/16/2023]
Abstract
Photochromic dyes possess unique properties that can be exploited in different domains, including optics, biomedicine and optoelectronics. Herein, we explore the potential of photochromic spiro-indoline naphthoxazine (SINO) and naphthopyran (NIPS) for application in photovoltaics. We designed and synthesized four new photosensitizers with a donor-pi-acceptor structure embedding SINO and NIPS units as photochromic cores. Their optical, photochromic and acidochromic properties were thoroughly studied to establish structure-properties relationships. Then, after unravelling the possible forms adopted depending on the stimuli, their photovoltaic properties were evaluated in DSSCs. Although the photochromic behavior is not always preserved, we elucidate the interplay between photochromic, acidochromic and photovoltaic properties and we demonstrate that these dyes can act as photosensitizers in DSSCs. We report a maximum power conversion efficiency of 2.7% with a NIPS-based dye, a tenfold improvement in comparison to previous works on similar class of compounds. This work opens new perspectives of developments for SINO and NIPS in optical and photovoltaic devices, and it provides novel research directions to design photochromic materials with improved characteristics.
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Affiliation(s)
| | | | - Antonio J Riquelme
- Department of Physical, Chemical and Natural Systems, Universidad Pablo de Olavide, Carretera de Utrera km 1 Sevilla 41013 Spain
| | - Johan Liotier
- Univ. Grenoble Alpes, CEA, CNRS, IRIG-SyMMES 38000 Grenoble France
| | - Quentin Huaulmé
- Univ. Grenoble Alpes, CEA, CNRS, IRIG-SyMMES 38000 Grenoble France
| | - Juan A Anta
- Department of Physical, Chemical and Natural Systems, Universidad Pablo de Olavide, Carretera de Utrera km 1 Sevilla 41013 Spain
| | - Pascale Maldivi
- Univ. Grenoble Alpes, CEA, CNRS, IRIG-SyMMES 38000 Grenoble France
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11
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Chen X, Liu H, Gao H, Li P, Miao T, Li H. Electrochemical Regioselective Cross-Dehydrogenative Coupling of Indoles with Xanthenes. J Org Chem 2021; 87:1056-1064. [PMID: 34964353 DOI: 10.1021/acs.joc.1c02346] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
An electrochemical cross-dehydrogenative coupling of indoles with xanthenes has been established at room temperature. This coupling reaction could proceed in the absence of any catalyst or external oxidant, and generate the indole derivatives in moderate yields. Mechanistic experiments support that a radical pathway maybe involved in this reaction system.
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Affiliation(s)
- Xinyu Chen
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, School of Chemistry and Materials Science, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China
| | - Hongqiang Liu
- China Synchem Technology Co., Ltd., Bengbu, Anhui 233000, P. R. China
| | - Hui Gao
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, School of Chemistry and Materials Science, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China.,Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin 541004, P. R. China
| | - Pinhua Li
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, School of Chemistry and Materials Science, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China
| | - Tao Miao
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, School of Chemistry and Materials Science, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China
| | - Hongji Li
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, School of Chemistry and Materials Science, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China
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12
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Jeong M, Park J, Seo Y, Lee KJ, Pramanik S, Ahn S, Kwon S. Hydrazone Photoswitches for Structural Modulation of Short Peptides. Chemistry 2021; 28:e202103972. [PMID: 34962683 DOI: 10.1002/chem.202103972] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Indexed: 11/11/2022]
Abstract
Molecules that undergo light-driven structural transformations constitute the core components in photoswitchable molecular systems and materials. Among various families of photoswitches, photochromic hydrazones have recently emerged as a novel class of photoswitches with superb properties, such as high photochemical conversion, spectral tunability, thermal stability, and fatigue resistance. Hydrazone photoswitches have been adopted in various adaptive materials at different length scales, however, their utilization for modulating biomolecules still has not been explored. Herein we present new hydrazone switches that can photomodulate the structures of short peptides. Systematic investigation on a set of hydrazone derivatives revealed that installation of the amide group does not significantly alter the photoswitching behaviors. Importantly, a hydrazone switch comprising an upper phenyl ring and a lower quinolinyl ring was effective for structural control of peptides. We anticipate that this work, as a new milestone in the research of hydrazone switches, will open a new avenue for structural and functional control of biomolecules.
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Affiliation(s)
- Myeongsu Jeong
- Chung-Ang University - Seoul Campus: Chung-Ang University, Department of Chemistry, KOREA, REPUBLIC OF
| | - Jiyoon Park
- Chung-Ang University - Seoul Campus: Chung-Ang University, Department of Chemistry, KOREA, REPUBLIC OF
| | - Yejin Seo
- Chung-Ang University - Seoul Campus: Chung-Ang University, Department of Chemistry, KOREA, REPUBLIC OF
| | - Kwon Jung Lee
- Chung-Ang University - Seoul Campus: Chung-Ang University, Department of Chemistry, KOREA, REPUBLIC OF
| | - Susnata Pramanik
- SRM Institute of Science and Technology, Department of Chemistry, INDIA
| | - Sangdoo Ahn
- Chung-Ang University - Seoul Campus: Chung-Ang University, Department of Chemistry, KOREA, REPUBLIC OF
| | - Sunbum Kwon
- Chung-Ang University, Chemistry, 84 Heukseok-ro, Bldg106 Rm401-2, 06974, Seoul, KOREA, REPUBLIC OF
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13
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Abstract
Super-resolution fluorescence microscopy and Förster Resonance Energy Transfer (FRET) form a well-established family of techniques that has provided unique tools to study the dynamic architecture and functionality of biological systems, as well as to investigate nanomaterials. In the last years, the integration of super-resolution methods with FRET measurements has generated advances in two fronts. On the one hand, FRET-based probes have enhanced super-resolution imaging. On the other, the development of super-resolved FRET imaging methods has allowed the visualization of molecular interaction patterns with higher spatial resolution, less averaging and higher dynamic range. Here, we review these advances and discuss future perspectives, including the possible integration of FRET with next generation super-resolution techniques capable of reaching true molecular-scale spatial resolution.
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Affiliation(s)
- Alan M Szalai
- Centro de Investigaciones en Bionanociencias (CIBION), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2390, C1425FQD Ciudad Autónoma de Buenos Aires, Argentina.
| | - Cecilia Zaza
- Centro de Investigaciones en Bionanociencias (CIBION), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2390, C1425FQD Ciudad Autónoma de Buenos Aires, Argentina.
- Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Güiraldes 2620, C1428EHA Ciudad Autónoma de Buenos Aires, Argentina
| | - Fernando D Stefani
- Centro de Investigaciones en Bionanociencias (CIBION), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2390, C1425FQD Ciudad Autónoma de Buenos Aires, Argentina.
- Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Güiraldes 2620, C1428EHA Ciudad Autónoma de Buenos Aires, Argentina
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14
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Piazzolla F, Mercier V, Assies L, Sakai N, Roux A, Matile S. Fluorescent Membrane Tension Probes for Early Endosomes. Angew Chem Int Ed Engl 2021; 60:12258-12263. [DOI: 10.1002/anie.202016105] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 01/18/2020] [Indexed: 12/19/2022]
Affiliation(s)
- Francesca Piazzolla
- School of Chemistry and Biochemistry National Centre of Competence in Research (NCCR) Chemical Biology University of Geneva Geneva Switzerland
| | - Vincent Mercier
- School of Chemistry and Biochemistry National Centre of Competence in Research (NCCR) Chemical Biology University of Geneva Geneva Switzerland
| | - Lea Assies
- School of Chemistry and Biochemistry National Centre of Competence in Research (NCCR) Chemical Biology University of Geneva Geneva Switzerland
| | - Naomi Sakai
- School of Chemistry and Biochemistry National Centre of Competence in Research (NCCR) Chemical Biology University of Geneva Geneva Switzerland
| | - Aurelien Roux
- School of Chemistry and Biochemistry National Centre of Competence in Research (NCCR) Chemical Biology University of Geneva Geneva Switzerland
| | - Stefan Matile
- School of Chemistry and Biochemistry National Centre of Competence in Research (NCCR) Chemical Biology University of Geneva Geneva Switzerland
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15
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Piazzolla F, Mercier V, Assies L, Sakai N, Roux A, Matile S. Fluorescent Membrane Tension Probes for Early Endosomes. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202016105] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Francesca Piazzolla
- School of Chemistry and Biochemistry National Centre of Competence in Research (NCCR) Chemical Biology University of Geneva Geneva Switzerland
| | - Vincent Mercier
- School of Chemistry and Biochemistry National Centre of Competence in Research (NCCR) Chemical Biology University of Geneva Geneva Switzerland
| | - Lea Assies
- School of Chemistry and Biochemistry National Centre of Competence in Research (NCCR) Chemical Biology University of Geneva Geneva Switzerland
| | - Naomi Sakai
- School of Chemistry and Biochemistry National Centre of Competence in Research (NCCR) Chemical Biology University of Geneva Geneva Switzerland
| | - Aurelien Roux
- School of Chemistry and Biochemistry National Centre of Competence in Research (NCCR) Chemical Biology University of Geneva Geneva Switzerland
| | - Stefan Matile
- School of Chemistry and Biochemistry National Centre of Competence in Research (NCCR) Chemical Biology University of Geneva Geneva Switzerland
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16
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García-Calvo J, López-Andarias J, Sakai N, Matile S. The primary dipole of flipper probes. Chem Commun (Camb) 2021; 57:3913-3916. [PMID: 33871529 DOI: 10.1039/d1cc00860a] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Despite their growing popularity in biology to image membrane tension, central design principles of flipper probes have never been validated. Here we report that upon deletion of their primary dipole, from electron-poor and electron-rich dithienothiophenes, absorptions blue-shift, lifetimes shorten dramatically, and mechanosensitivity in cells vanishes not partially, but completely.
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Affiliation(s)
- José García-Calvo
- Department of Organic Chemistry, University of Geneva, Geneva, Switzerland.
| | | | - Naomi Sakai
- Department of Organic Chemistry, University of Geneva, Geneva, Switzerland.
| | - Stefan Matile
- Department of Organic Chemistry, University of Geneva, Geneva, Switzerland.
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17
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López-Andarias J, Straková K, Martinent R, Jiménez-Rojo N, Riezman H, Sakai N, Matile S. Genetically Encoded Supramolecular Targeting of Fluorescent Membrane Tension Probes within Live Cells: Precisely Localized Controlled Release by External Chemical Stimulation. JACS AU 2021; 1:221-232. [PMID: 34467286 PMCID: PMC8395630 DOI: 10.1021/jacsau.0c00069] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Indexed: 05/12/2023]
Abstract
To image membrane tension in selected membranes of interest (MOI) inside living systems, the field of mechanobiology requires increasingly elaborated small-molecule chemical tools. We have recently introduced HaloFlipper, i.e., a mechanosensitive flipper probe that can localize in the MOI using HaloTag technology to report local membrane tension changes using fluorescence lifetime imaging microscopy. However, the linker tethering the probe to HaloTag hampers the lateral diffusion of the probe in all the lipid domains of the MOI. For a more global membrane tension measurement in any MOI, we present here a supramolecular chemistry strategy for selective localization and controlled release of flipper into the MOI, using a genetically encoded supramolecular tag. SupraFlippers, functionalized with a desthiobiotin ligand, can selectively accumulate in the organelle having expressed streptavidin. The addition of biotin as a biocompatible external stimulus with a higher affinity for Sav triggers the release of the probe, which spontaneously partitions into the MOI. Freed in the lumen of endoplasmic reticulum (ER), SupraFlippers report the membrane orders along the secretory pathway from the ER over the Golgi apparatus to the plasma membrane. Kinetics of the process are governed by both the probe release and the transport through lipid domains. The concentration of biotin can control the former, while the expression level of a transmembrane protein (Sec12) involved in the stimulation of the vesicular transport from ER to Golgi influences the latter. Finally, the generation of a cell-penetrating and fully functional Sav-flipper complex using cyclic oligochalcogenide (COC) transporters allows us to combine the SupraFlipper strategy and HaloTag technology.
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18
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Kato T, Strakova K, García-Calvo J, Sakai N, Matile S. Mechanosensitive Fluorescent Probes, Changing Color Like Lobsters during Cooking: Cascade Switching Variations. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2020. [DOI: 10.1246/bcsj.20200157] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Takehiro Kato
- Department of Organic Chemistry, University of Geneva, Geneva, Switzerland
| | - Karolina Strakova
- Department of Organic Chemistry, University of Geneva, Geneva, Switzerland
| | - José García-Calvo
- Department of Organic Chemistry, University of Geneva, Geneva, Switzerland
| | - Naomi Sakai
- Department of Organic Chemistry, University of Geneva, Geneva, Switzerland
| | - Stefan Matile
- Department of Organic Chemistry, University of Geneva, Geneva, Switzerland
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19
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Zhou Y, Pang M, Zhu W, Jiang Z, Liu Y, Meng J. Crystal structure and photochromism of auxochrome-introduced Spiro[indoline-quinoline]oxazine deriatives. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128574] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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20
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Moreno S, Sharan P, Engelke J, Gumz H, Boye S, Oertel U, Wang P, Banerjee S, Klajn R, Voit B, Lederer A, Appelhans D. Light-Driven Proton Transfer for Cyclic and Temporal Switching of Enzymatic Nanoreactors. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e2002135. [PMID: 32783385 DOI: 10.1002/smll.202002135] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 05/25/2020] [Indexed: 06/11/2023]
Abstract
Temporal activation of biological processes by visible light and subsequent return to an inactive state in the absence of light is an essential characteristic of photoreceptor cells. Inspired by these phenomena, light-responsive materials are very attractive due to the high spatiotemporal control of light irradiation, with light being able to precisely orchestrate processes repeatedly over many cycles. Herein, it is reported that light-driven proton transfer triggered by a merocyanine-based photoacid can be used to modulate the permeability of pH-responsive polymersomes through cyclic, temporally controlled protonation and deprotonation of the polymersome membrane. The membranes can undergo repeated light-driven swelling-contraction cycles without losing functional effectiveness. When applied to enzyme loaded-nanoreactors, this membrane responsiveness is used for the reversible control of enzymatic reactions. This combination of the merocyanine-based photoacid and pH-switchable nanoreactors results in rapidly responding and versatile supramolecular systems successfully used to switch enzymatic reactions ON and OFF on demand.
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Affiliation(s)
- Silvia Moreno
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, Dresden, 01069, Germany
| | - Priyanka Sharan
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, Dresden, 01069, Germany
- Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, Dresden, 01062, Germany
- Materials Science Centre, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | - Johanna Engelke
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, Dresden, 01069, Germany
- Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, Dresden, 01062, Germany
| | - Hannes Gumz
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, Dresden, 01069, Germany
- Center for Advancing Electronics Dresden, Technische Universität Dresden, Dresden, 01062, Germany
| | - Susanne Boye
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, Dresden, 01069, Germany
| | - Ulrich Oertel
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, Dresden, 01069, Germany
| | - Peng Wang
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, Dresden, 01069, Germany
- Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, Dresden, 01062, Germany
| | - Susanta Banerjee
- Materials Science Centre, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | - Rafal Klajn
- Department of Organic Chemistry, Weizmann Institute of Science, Rehovot, 76100, Israel
| | - Brigitte Voit
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, Dresden, 01069, Germany
- Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, Dresden, 01062, Germany
- Center for Advancing Electronics Dresden, Technische Universität Dresden, Dresden, 01062, Germany
| | - Albena Lederer
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, Dresden, 01069, Germany
- Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, Dresden, 01062, Germany
- Department of Chemistry and Polymer Science, Stellenbosch University, Private Bag X1, Matieland, 7602, South Africa
| | - Dietmar Appelhans
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, Dresden, 01069, Germany
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21
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Straková K, López-Andarias J, Jiménez-Rojo N, Chambers JE, Marciniak SJ, Riezman H, Sakai N, Matile S. HaloFlippers: A General Tool for the Fluorescence Imaging of Precisely Localized Membrane Tension Changes in Living Cells. ACS CENTRAL SCIENCE 2020; 6:1376-1385. [PMID: 32875078 PMCID: PMC7453570 DOI: 10.1021/acscentsci.0c00666] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Indexed: 05/03/2023]
Abstract
Tools to image membrane tension in response to mechanical stimuli are badly needed in mechanobiology. We have recently introduced mechanosensitive flipper probes to report quantitatively global membrane tension changes in fluorescence lifetime imaging microscopy (FLIM) images of living cells. However, to address specific questions on physical forces in biology, the probes need to be localized precisely in the membrane of interest (MOI). Herein we present a general strategy to image the tension of the MOI by tagging our newly introduced HaloFlippers to self-labeling HaloTags fused to proteins in this membrane. The critical challenge in the construction of operational HaloFlippers is the tether linking the flipper and the HaloTag: It must be neither too taut nor too loose, be hydrophilic but lipophilic enough to passively diffuse across membranes to reach the HaloTags, and allow partitioning of flippers into the MOI after the reaction. HaloFlippers with the best tether show localized and selective fluorescence after reacting with HaloTags that are close enough to the MOI but remain nonemissive if the MOI cannot be reached. Their fluorescence lifetime in FLIM images varies depending on the nature of the MOI and responds to myriocin-mediated sphingomyelin depletion as well as to osmotic stress. The response to changes in such precisely localized membrane tension follows the validated principles, thus confirming intact mechanosensitivity. Examples covered include HaloTags in the Golgi apparatus, peroxisomes, endolysosomes, and the ER, all thus becoming accessible to the selective fluorescence imaging of membrane tension.
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Affiliation(s)
- Karolína Straková
- School
of Chemistry and Biochemistry and National Centre of Competence in
Research (NCCR) Chemical Biology, University
of Geneva, Geneva 1211, Switzerland
| | - Javier López-Andarias
- School
of Chemistry and Biochemistry and National Centre of Competence in
Research (NCCR) Chemical Biology, University
of Geneva, Geneva 1211, Switzerland
- (J.L.-A.)
| | - Noemi Jiménez-Rojo
- School
of Chemistry and Biochemistry and National Centre of Competence in
Research (NCCR) Chemical Biology, University
of Geneva, Geneva 1211, Switzerland
| | - Joseph E. Chambers
- Cambridge
Institute for Medical Research, University
of Cambridge, Cambridge CB2 0XY, United Kingdom
| | - Stefan J. Marciniak
- Cambridge
Institute for Medical Research, University
of Cambridge, Cambridge CB2 0XY, United Kingdom
| | - Howard Riezman
- School
of Chemistry and Biochemistry and National Centre of Competence in
Research (NCCR) Chemical Biology, University
of Geneva, Geneva 1211, Switzerland
| | - Naomi Sakai
- School
of Chemistry and Biochemistry and National Centre of Competence in
Research (NCCR) Chemical Biology, University
of Geneva, Geneva 1211, Switzerland
| | - Stefan Matile
- School
of Chemistry and Biochemistry and National Centre of Competence in
Research (NCCR) Chemical Biology, University
of Geneva, Geneva 1211, Switzerland
- (S.M.)
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22
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Frawley AT, Wycisk V, Xiong Y, Galiani S, Sezgin E, Urbančič I, Vargas Jentzsch A, Leslie KG, Eggeling C, Anderson HL. Super-resolution RESOLFT microscopy of lipid bilayers using a fluorophore-switch dyad. Chem Sci 2020; 11:8955-8960. [PMID: 34123149 PMCID: PMC8163400 DOI: 10.1039/d0sc02447c] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 08/07/2020] [Indexed: 01/19/2023] Open
Abstract
Dyads consisting of a photochromic switch covalently linked to a fluorescent dye allow the emission from the dye to be controlled by reversible photoisomerization of the switch; one form of the switch quenches fluorescence by accepting energy from the dye. Here we investigate the use of dyads of this type for super-resolution imaging of lipid bilayers. Giant unilamellar vesicles stained with the dyads were imaged with about a two-fold resolution-enhancement compared with conventional confocal microscopy. This was achieved by exciting the fluorophore at 594 nm, using a switch activated by violet and red light (405/640 nm).
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Affiliation(s)
- Andrew T Frawley
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory Oxford OX1 3TA UK
| | - Virginia Wycisk
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory Oxford OX1 3TA UK
| | - Yaoyao Xiong
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory Oxford OX1 3TA UK
| | - Silvia Galiani
- MRC Human Immunology Unit, Weatherall Institute of Molecular Medicine, University of Oxford Oxford OX3 9DS UK
| | - Erdinc Sezgin
- MRC Human Immunology Unit, Weatherall Institute of Molecular Medicine, University of Oxford Oxford OX3 9DS UK
| | - Iztok Urbančič
- MRC Human Immunology Unit, Weatherall Institute of Molecular Medicine, University of Oxford Oxford OX3 9DS UK
| | - Andreas Vargas Jentzsch
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory Oxford OX1 3TA UK
- SAMS Research Group, Institut Charles Sadron, CNRS-UPR 22, University of Strasbourg Strasbourg Cedex 2 67034 France
| | - Kathryn G Leslie
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory Oxford OX1 3TA UK
| | - Christian Eggeling
- MRC Human Immunology Unit, Weatherall Institute of Molecular Medicine, University of Oxford Oxford OX3 9DS UK
- Institute of Applied Optics and Biophysics, Friedrich-Schiller-University Jena Max-Wien Platz 4 07743 Jena Germany
- Leibniz Institute of Photonic Technology e.V. Albert-Einstein-Straße 9 07745 Jena Germany
- Jena Center for Soft Matter (JCSM) Philosophenweg 7 07743 Jena Germany
| | - Harry L Anderson
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory Oxford OX1 3TA UK
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23
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Wang G, Li Y, Song T, Shang C, Yang J, Lily M, Fang Y, Liu F. Fluorescence Toggling Mechanism of Photochromic Phenylhydrazones: N–N Single Bond Rotation-Assisting E/Z Photoisomerization Differs from Imine. J Phys Chem A 2020; 124:6411-6419. [DOI: 10.1021/acs.jpca.0c03525] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Gang Wang
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education, Key Laboratory for Macromolecular Science of Shaanxi Province, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi’an, Shaanxi 710119, People’s Republic of China
| | - Yazhen Li
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education, Key Laboratory for Macromolecular Science of Shaanxi Province, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi’an, Shaanxi 710119, People’s Republic of China
| | - Tingting Song
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education, Key Laboratory for Macromolecular Science of Shaanxi Province, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi’an, Shaanxi 710119, People’s Republic of China
| | - Congdi Shang
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education, Key Laboratory for Macromolecular Science of Shaanxi Province, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi’an, Shaanxi 710119, People’s Republic of China
| | - Jiawei Yang
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education, Key Laboratory for Macromolecular Science of Shaanxi Province, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi’an, Shaanxi 710119, People’s Republic of China
| | - Makroni Lily
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education, Key Laboratory for Macromolecular Science of Shaanxi Province, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi’an, Shaanxi 710119, People’s Republic of China
| | - Yu Fang
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education, Key Laboratory for Macromolecular Science of Shaanxi Province, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi’an, Shaanxi 710119, People’s Republic of China
| | - Fengyi Liu
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education, Key Laboratory for Macromolecular Science of Shaanxi Province, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi’an, Shaanxi 710119, People’s Republic of China
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24
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García-Calvo J, Maillard J, Fureraj I, Strakova K, Colom A, Mercier V, Roux A, Vauthey E, Sakai N, Fürstenberg A, Matile S. Fluorescent Membrane Tension Probes for Super-Resolution Microscopy: Combining Mechanosensitive Cascade Switching with Dynamic-Covalent Ketone Chemistry. J Am Chem Soc 2020; 142:12034-12038. [PMID: 32609500 DOI: 10.1021/jacs.0c04942] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
We report the design, synthesis, and evaluation of fluorescent flipper probes for single-molecule super-resolution imaging of membrane tension in living cells. Reversible switching from bright-state ketones to dark-state hydrates, hemiacetals, and hemithioacetals is demonstrated for twisted and planarized mechanophores in solution and membranes. Broadband femtosecond fluorescence up-conversion spectroscopy evinces ultrafast chalcogen-bonding cascade switching in the excited state in solution. According to fluorescence lifetime imaging microscopy, the new flippers image membrane tension in live cells with record red shifts and photostability. Single-molecule localization microscopy with the new tension probes resolves membranes well below the diffraction limit.
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Affiliation(s)
- José García-Calvo
- School of Chemistry and Biochemistry, University of Geneva, Geneva 1211, Switzerland
| | - Jimmy Maillard
- School of Chemistry and Biochemistry, University of Geneva, Geneva 1211, Switzerland
| | - Ina Fureraj
- School of Chemistry and Biochemistry, University of Geneva, Geneva 1211, Switzerland
| | - Karolina Strakova
- School of Chemistry and Biochemistry, University of Geneva, Geneva 1211, Switzerland
| | - Adai Colom
- School of Chemistry and Biochemistry, University of Geneva, Geneva 1211, Switzerland
| | - Vincent Mercier
- School of Chemistry and Biochemistry, University of Geneva, Geneva 1211, Switzerland
| | - Aurelien Roux
- School of Chemistry and Biochemistry, University of Geneva, Geneva 1211, Switzerland
| | - Eric Vauthey
- School of Chemistry and Biochemistry, University of Geneva, Geneva 1211, Switzerland
| | - Naomi Sakai
- School of Chemistry and Biochemistry, University of Geneva, Geneva 1211, Switzerland
| | - Alexandre Fürstenberg
- School of Chemistry and Biochemistry, University of Geneva, Geneva 1211, Switzerland
| | - Stefan Matile
- School of Chemistry and Biochemistry, University of Geneva, Geneva 1211, Switzerland
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25
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Chemo- and biosensing applications of spiropyran and its derivatives - A review. Anal Chim Acta 2020; 1110:199-223. [DOI: 10.1016/j.aca.2020.01.057] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 01/24/2020] [Accepted: 01/24/2020] [Indexed: 12/20/2022]
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26
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Abstract
AbstractThis article provides an introductory overview of a class of colorant that underpinned the establishment of the most industrially important application of photochromic dyes. It outlines the properties that led to the rise (and subsequent decline) in commercial significance of spirooxazine colorants, and which attract researchers seeking to put them to work in new technologies. Within this survey, the chief means of synthesising such dyes and adjusting their photochromism are briefly discussed. The reader is directed to useful sources of information concerning not only these aspects, but also potential applications for spirooxazine-based photochromism.
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Affiliation(s)
- Andrew Towns
- Technical department, Lambson Ltd, Clifford House, York Road, Wetherby, West YorkshireLS22 7NS, UK
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27
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Zhang X, Sakai N, Matile S. Methyl Scanning for Mechanochemical Chalcogen-Bonding Cascade Switches. ChemistryOpen 2020; 9:18-22. [PMID: 31921541 PMCID: PMC6946998 DOI: 10.1002/open.201900288] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Indexed: 12/14/2022] Open
Abstract
Chalcogen-bonding cascade switching was introduced recently to produce the chemistry tools needed to image physical forces in biological systems. In the original flipper probe, one methyl group appeared to possibly interfere with the cascade switch. In this report, this questionable methyl group is replaced by a hydrogen. The deletion of this methyl group in planarizable push-pull probes was not trivial because it required the synthesis of dithienothiophenes with four different substituents on the four available carbons. The mechanosensitivity of the resulting demethylated flipper probe was nearly identical to that of the original. Thus methyl groups in the switching region are irrelevant for function, whereas those in the twisting region are essential. This result supports the chalcogen-bonding cascade switching concept and, most importantly, removes significant synthetic demands from future probe development.
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Affiliation(s)
- Xiang Zhang
- Department of Organic ChemistryUniversity of GenevaGenevaSwitzerland
| | - Naomi Sakai
- Department of Organic ChemistryUniversity of GenevaGenevaSwitzerland
| | - Stefan Matile
- Department of Organic ChemistryUniversity of GenevaGenevaSwitzerland
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28
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Dattler D, Fuks G, Heiser J, Moulin E, Perrot A, Yao X, Giuseppone N. Design of Collective Motions from Synthetic Molecular Switches, Rotors, and Motors. Chem Rev 2019; 120:310-433. [PMID: 31869214 DOI: 10.1021/acs.chemrev.9b00288] [Citation(s) in RCA: 237] [Impact Index Per Article: 47.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Precise control over molecular movement is of fundamental and practical importance in physics, biology, and chemistry. At nanoscale, the peculiar functioning principles and the synthesis of individual molecular actuators and machines has been the subject of intense investigations and debates over the past 60 years. In this review, we focus on the design of collective motions that are achieved by integrating, in space and time, several or many of these individual mechanical units together. In particular, we provide an in-depth look at the intermolecular couplings used to physically connect a number of artificial mechanically active molecular units such as photochromic molecular switches, nanomachines based on mechanical bonds, molecular rotors, and light-powered rotary motors. We highlight the various functioning principles that can lead to their collective motion at various length scales. We also emphasize how their synchronized, or desynchronized, mechanical behavior can lead to emerging functional properties and to their implementation into new active devices and materials.
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Affiliation(s)
- Damien Dattler
- SAMS Research Group, Institute Charles Sadron, CNRS , University of Strasbourg , 23 rue du Loess , BP 84047, 67034 Strasbourg Cedex 2 , France
| | - Gad Fuks
- SAMS Research Group, Institute Charles Sadron, CNRS , University of Strasbourg , 23 rue du Loess , BP 84047, 67034 Strasbourg Cedex 2 , France
| | - Joakim Heiser
- SAMS Research Group, Institute Charles Sadron, CNRS , University of Strasbourg , 23 rue du Loess , BP 84047, 67034 Strasbourg Cedex 2 , France
| | - Emilie Moulin
- SAMS Research Group, Institute Charles Sadron, CNRS , University of Strasbourg , 23 rue du Loess , BP 84047, 67034 Strasbourg Cedex 2 , France
| | - Alexis Perrot
- SAMS Research Group, Institute Charles Sadron, CNRS , University of Strasbourg , 23 rue du Loess , BP 84047, 67034 Strasbourg Cedex 2 , France
| | - Xuyang Yao
- SAMS Research Group, Institute Charles Sadron, CNRS , University of Strasbourg , 23 rue du Loess , BP 84047, 67034 Strasbourg Cedex 2 , France
| | - Nicolas Giuseppone
- SAMS Research Group, Institute Charles Sadron, CNRS , University of Strasbourg , 23 rue du Loess , BP 84047, 67034 Strasbourg Cedex 2 , France
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29
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Vajekar SN, Shankarling GS. Highly efficient green synthesis of the photochromic spironaphthoxazines using an eco-friendly choline hydroxide catalyst. SYNTHETIC COMMUN 2019. [DOI: 10.1080/00397911.2019.1694690] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Shailesh N. Vajekar
- Department of Dyestuff Technology, Institute of Chemical Technology, Mumbai, Maharashtra, India
| | - Ganapati S. Shankarling
- Department of Dyestuff Technology, Institute of Chemical Technology, Mumbai, Maharashtra, India
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30
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Chai X, Han HH, Zang Y, Li J, He XP, Zhang J, Tian H. Targeted photoswitchable imaging of intracellular glutathione by a photochromic glycosheet sensor. Beilstein J Org Chem 2019; 15:2380-2389. [PMID: 31666872 PMCID: PMC6808201 DOI: 10.3762/bjoc.15.230] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Accepted: 09/24/2019] [Indexed: 12/17/2022] Open
Abstract
The development of photochromic fluorescence sensors with dynamic and multiple-signaling is beneficial to the improvement of biosensing/imaging precision. However, elaborate designs with complicated molecular structures are always required to integrate these functions into one molecule. By taking advantages of both redox-active/high loading features of two-dimensional (2D) manganese dioxide (MnO2) and dynamic fluorescence photoswitching of photochromic sensors, we here design a hybrid photochromic MnO2 glycosheet (Glyco-DTE@MnO2) to achieve the photoswitchable imaging of intracellular glutathione (GSH). The photochromic glycosheet manifests significantly turn-on fluorescence and dynamic ON/OFF fluorescence signals in response to GSH, which makes it favorable for intracellular GSH double-check in targeted human hepatoma cell line (HepG2) through the recognition between β-D-galactoside and asialoglycoprotein receptor (ASGPr) on cell membranes. The dynamic fluorescence signals and excellent selectivity for detection and imaging of GSH ensure the precise determination of cell states, promoting its potential applications in future disease diagnosis and therapy.
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Affiliation(s)
- Xianzhi Chai
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, People's Republic of China
| | - Hai-Hao Han
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, People's Republic of China.,National Center for Drug Screening, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 189 Guo Shoujing Rd., Shanghai 201203, People's Republic of China
| | - Yi Zang
- National Center for Drug Screening, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 189 Guo Shoujing Rd., Shanghai 201203, People's Republic of China
| | - Jia Li
- National Center for Drug Screening, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 189 Guo Shoujing Rd., Shanghai 201203, People's Republic of China
| | - Xiao-Peng He
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, People's Republic of China
| | - Junji Zhang
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, People's Republic of China
| | - He Tian
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, People's Republic of China
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31
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Macchione M, Goujon A, Strakova K, Humeniuk HV, Licari G, Tajkhorshid E, Sakai N, Matile S. A Chalcogen-Bonding Cascade Switch for Planarizable Push-Pull Probes. Angew Chem Int Ed Engl 2019; 58:15752-15756. [PMID: 31539191 PMCID: PMC7035594 DOI: 10.1002/anie.201909741] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Indexed: 11/08/2022]
Abstract
Planarizable push-pull probes have been introduced to demonstrate physical forces in biology. However, the donors and acceptors needed to polarize mechanically planarized probes are incompatible with their twisted resting state. The objective of this study was to overcome this "flipper dilemma" with chalcogen-bonding cascade switches that turn on donors and acceptors only in response to mechanical planarization of the probe. This concept is explored by molecular dynamics simulations as well as chemical double-mutant cycle analysis. Cascade switched flipper probes turn out to excel with chemical stability, red shifts adding up to high significance, and focused mechanosensitivity. Most important, however, is the introduction of a new, general and fundamental concept that operates with non-trivial supramolecular chemistry, solves an important practical problem and opens a wide chemical space.
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Affiliation(s)
- Mariano Macchione
- Department of Organic Chemistry, University of Geneva, Geneva, Switzerland
| | - Antoine Goujon
- Department of Organic Chemistry, University of Geneva, Geneva, Switzerland
| | - Karolina Strakova
- Department of Organic Chemistry, University of Geneva, Geneva, Switzerland
| | - Heorhii V Humeniuk
- Department of Organic Chemistry, University of Geneva, Geneva, Switzerland
| | - Giuseppe Licari
- NIH Center for Macromolecular Modeling and Bioinformatics, Beckman Institute for Advanced Science and Technology and Department of Biochemistry, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Emad Tajkhorshid
- NIH Center for Macromolecular Modeling and Bioinformatics, Beckman Institute for Advanced Science and Technology and Department of Biochemistry, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Naomi Sakai
- Department of Organic Chemistry, University of Geneva, Geneva, Switzerland
| | - Stefan Matile
- Department of Organic Chemistry, University of Geneva, Geneva, Switzerland
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32
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Strakova K, Poblador‐Bahamonde AI, Sakai N, Matile S. Fluorescent Flipper Probes: Comprehensive Twist Coverage. Chemistry 2019; 25:14935-14942. [DOI: 10.1002/chem.201903604] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 09/01/2019] [Indexed: 12/27/2022]
Affiliation(s)
- Karolina Strakova
- Department of Organic ChemistryUniversity of Geneva Geneva Switzerland
| | | | - Naomi Sakai
- Department of Organic ChemistryUniversity of Geneva Geneva Switzerland
| | - Stefan Matile
- Department of Organic ChemistryUniversity of Geneva Geneva Switzerland
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33
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Macchione M, Goujon A, Strakova K, Humeniuk HV, Licari G, Tajkhorshid E, Sakai N, Matile S. A Chalcogen‐Bonding Cascade Switch for Planarizable Push–Pull Probes. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201909741] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Mariano Macchione
- Department of Organic Chemistry University of Geneva Geneva Switzerland
| | - Antoine Goujon
- Department of Organic Chemistry University of Geneva Geneva Switzerland
| | - Karolina Strakova
- Department of Organic Chemistry University of Geneva Geneva Switzerland
| | | | - Giuseppe Licari
- NIH Center for Macromolecular Modeling and Bioinformatics Beckman Institute for Advanced Science and Technology and Department of Biochemistry University of Illinois at Urbana-Champaign Urbana IL 61801 USA
| | - Emad Tajkhorshid
- NIH Center for Macromolecular Modeling and Bioinformatics Beckman Institute for Advanced Science and Technology and Department of Biochemistry University of Illinois at Urbana-Champaign Urbana IL 61801 USA
| | - Naomi Sakai
- Department of Organic Chemistry University of Geneva Geneva Switzerland
| | - Stefan Matile
- Department of Organic Chemistry University of Geneva Geneva Switzerland
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34
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A building-block design for enhanced visible-light switching of diarylethenes. Nat Commun 2019; 10:4232. [PMID: 31530814 PMCID: PMC6748945 DOI: 10.1038/s41467-019-12302-6] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Accepted: 08/28/2019] [Indexed: 11/09/2022] Open
Abstract
Current development of light-responsive materials and technologies imposes an urgent demand on visible-light photoswitching on account of its mild excitation with high penetration ability and low photo-toxicity. However, complicated molecular design and laborious synthesis are often required for visible-light photoswitch, especially for diarylethenes. Worse still, a dilemma is encountered as the visible-light excitation of the diarylethene is often achieved at the expense of photochromic performances. To tackle these setbacks, we introduce a building-block design strategy to achieve all-visible-light photochromism with the triplet-sensitization mechanism. The simply designed diarylethene system is constructed by employing a sensitizer building-block with narrow singlet-triplet energy gap (ΔEST) to a diarylethene building-block. A significant improvement on the photochromic efficiency is obtained as well as an enhanced photo-fatigue resistance over those under UV irradiation. The balance between the visible-light excitation and decent photochromism is thus realized, promoting a guiding principle for the visible-light photochromism.
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35
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Strakova K, Assies L, Goujon A, Piazzolla F, Humeniuk HV, Matile S. Dithienothiophenes at Work: Access to Mechanosensitive Fluorescent Probes, Chalcogen-Bonding Catalysis, and Beyond. Chem Rev 2019; 119:10977-11005. [DOI: 10.1021/acs.chemrev.9b00279] [Citation(s) in RCA: 100] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Karolina Strakova
- Department of Organic Chemistry, University of Geneva, Geneva, Switzerland
| | - Lea Assies
- Department of Organic Chemistry, University of Geneva, Geneva, Switzerland
| | - Antoine Goujon
- Department of Organic Chemistry, University of Geneva, Geneva, Switzerland
| | | | | | - Stefan Matile
- Department of Organic Chemistry, University of Geneva, Geneva, Switzerland
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36
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Strategies to maximize performance in STimulated Emission Depletion (STED) nanoscopy of biological specimens. Methods 2019; 174:27-41. [PMID: 31344404 DOI: 10.1016/j.ymeth.2019.07.019] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 06/28/2019] [Accepted: 07/17/2019] [Indexed: 12/17/2022] Open
Abstract
Super-resolution fluorescence microscopy has become an important catalyst for discovery in the life sciences. In STimulated Emission Depletion (STED) microscopy, a pattern of light drives fluorophores from a signal-emitting on-state to a non-signalling off-state. Only emitters residing in a sub-diffraction volume around an intensity minimum are allowed to fluoresce, rendering them distinguishable from the nearby, but dark fluorophores. STED routinely achieves resolution in the few tens of nanometers range in biological samples and is suitable for live imaging. Here, we review the working principle of STED and provide general guidelines for successful STED imaging. The strive for ever higher resolution comes at the cost of increased light burden. We discuss techniques to reduce light exposure and mitigate its detrimental effects on the specimen. These include specialized illumination strategies as well as protecting fluorophores from photobleaching mediated by high-intensity STED light. This opens up the prospect of volumetric imaging in living cells and tissues with diffraction-unlimited resolution in all three spatial dimensions.
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37
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Wang L, Yao Y, Wang J, Dong C, Han H. Selective sensing Ca
2+
with a spiropyran‐based fluorometric probe. LUMINESCENCE 2019; 34:707-714. [DOI: 10.1002/bio.3656] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2019] [Revised: 05/07/2019] [Accepted: 05/10/2019] [Indexed: 11/08/2022]
Affiliation(s)
- Li Wang
- Institute of Environmental ScienceShanxi University Taiyuan 030006 China
| | - Yuanjun Yao
- School of Chemistry and Chemical EngineeringShanxi University Taiyuan 030006 China
| | - Jiao Wang
- School of Chemistry and Chemical EngineeringShanxi University Taiyuan 030006 China
| | - Chuan Dong
- Institute of Environmental ScienceShanxi University Taiyuan 030006 China
| | - Hui Han
- Institute of Environmental ScienceShanxi University Taiyuan 030006 China
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38
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Target-activated and ratiometric photochromic probe for “double-check” detection of toxic thiols in live cells. Sci China Chem 2019. [DOI: 10.1007/s11426-019-9490-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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39
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Goujon A, Colom A, Straková K, Mercier V, Mahecic D, Manley S, Sakai N, Roux A, Matile S. Mechanosensitive Fluorescent Probes to Image Membrane Tension in Mitochondria, Endoplasmic Reticulum, and Lysosomes. J Am Chem Soc 2019; 141:3380-3384. [PMID: 30744381 DOI: 10.1021/jacs.8b13189] [Citation(s) in RCA: 135] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Measuring forces inside cells is particularly challenging. With the development of quantitative microscopy, fluorophores which allow the measurement of forces became highly desirable. We have previously introduced a mechanosensitive flipper probe, which responds to the change of plasma membrane tension by changing its fluorescence lifetime and thus allows tension imaging by FLIM. Herein, we describe the design, synthesis, and evaluation of flipper probes that selectively label intracellular organelles, i.e., lysosomes, mitochondria, and the endoplasmic reticulum. The probes respond uniformly to osmotic shocks applied extracellularly, thus confirming sensitivity toward changes in membrane tension. At rest, different lifetimes found for different organelles relate to known differences in membrane organization rather than membrane tension and allow colabeling in the same cells. At the organelle scale, lifetime heterogeneity provides unprecedented insights on ER tubules and sheets, and nuclear membranes. Examples on endosomal trafficking or increase of tension at mitochondrial constriction sites outline the potential of intracellularly targeted fluorescent tension probes to address essential questions that were previously beyond reach.
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Affiliation(s)
- Antoine Goujon
- School of Chemistry and Biochemistry and ‡National Centre of Competence in Research (NCCR) Chemical Biology , University of Geneva , CH-1211 Geneva , Switzerland
| | - Adai Colom
- School of Chemistry and Biochemistry and ‡National Centre of Competence in Research (NCCR) Chemical Biology , University of Geneva , CH-1211 Geneva , Switzerland
| | - Karolína Straková
- School of Chemistry and Biochemistry and ‡National Centre of Competence in Research (NCCR) Chemical Biology , University of Geneva , CH-1211 Geneva , Switzerland
| | - Vincent Mercier
- School of Chemistry and Biochemistry and ‡National Centre of Competence in Research (NCCR) Chemical Biology , University of Geneva , CH-1211 Geneva , Switzerland
| | | | | | - Naomi Sakai
- School of Chemistry and Biochemistry and ‡National Centre of Competence in Research (NCCR) Chemical Biology , University of Geneva , CH-1211 Geneva , Switzerland
| | - Aurélien Roux
- School of Chemistry and Biochemistry and ‡National Centre of Competence in Research (NCCR) Chemical Biology , University of Geneva , CH-1211 Geneva , Switzerland
| | - Stefan Matile
- School of Chemistry and Biochemistry and ‡National Centre of Competence in Research (NCCR) Chemical Biology , University of Geneva , CH-1211 Geneva , Switzerland
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40
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Goujon A, Straková K, Sakai N, Matile S. Streptavidin interfacing as a general strategy to localize fluorescent membrane tension probes in cells. Chem Sci 2019; 10:310-319. [PMID: 30713639 PMCID: PMC6333237 DOI: 10.1039/c8sc03620a] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Accepted: 10/09/2018] [Indexed: 12/12/2022] Open
Abstract
To image the mechanical properties of biological membranes, twisted push-pull mechanophores that respond to membrane tension by planarization in the ground state have been introduced recently. For their application in biological systems, these so-called fluorescent flippers will have to be localized to specific environments of cellular membranes. In this report, we explore streptavidin as a versatile connector between biotinylated flipper probes and biotinylated targets. Fluorescence spectroscopy and microscopy with LUVs and GUVs reveal the specific conditions needed for desthiobiotin-loaded streptavidin to deliver biotinylated flippers selectively to biotinylated membranes. Selectivity for biotinylated plasma membranes is also observed in HeLa cells, confirming the compatibility of this strategy with biological systems. Streptavidin interfacing does not affect the mechanosensitivity of the flipper probes, red shift in the excitation maximum and fluorescence lifetime increase with membrane order and tension, as demonstrated, inter alia, using FLIM.
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Affiliation(s)
- Antoine Goujon
- School of Chemistry and Biochemistry , National Centre of Competence in Research (NCCR) Chemical Biology , University of Geneva , Geneva , Switzerland . ; http://www.unige.ch/sciences/chiorg/matile/
| | - Karolína Straková
- School of Chemistry and Biochemistry , National Centre of Competence in Research (NCCR) Chemical Biology , University of Geneva , Geneva , Switzerland . ; http://www.unige.ch/sciences/chiorg/matile/
| | - Naomi Sakai
- School of Chemistry and Biochemistry , National Centre of Competence in Research (NCCR) Chemical Biology , University of Geneva , Geneva , Switzerland . ; http://www.unige.ch/sciences/chiorg/matile/
| | - Stefan Matile
- School of Chemistry and Biochemistry , National Centre of Competence in Research (NCCR) Chemical Biology , University of Geneva , Geneva , Switzerland . ; http://www.unige.ch/sciences/chiorg/matile/
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41
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Bittmann SF, Dsouza R, Siddiqui KM, Hayes SA, Rossos A, Corthey G, Kochman M, Prokhorenko VI, Murphy RS, Schwoerer H, Miller RJD. Ultrafast ring-opening and solvent-dependent product relaxation of photochromic spironaphthopyran. Phys Chem Chem Phys 2019; 21:18119-18127. [DOI: 10.1039/c9cp02950h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Combined experiment and theory shed light on the dominant pathways involved in the photochemical reaction of spiropyran.
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42
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Wang Y, Xu F, Xiao K, Chen Y, Tian Z. Site- and structure-specific characterization ofN-glycoprotein markers of MCF-7 cancer stem cells using isotopic-labelling quantitativeN-glycoproteomics. Chem Commun (Camb) 2019; 55:7934-7937. [DOI: 10.1039/c9cc04114a] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
High-throughput proteome-level characterization of stemness markers of MCF-7 cancer stem cells was carried out using our recently developed site- and structure-specific isotopic-labelled quantitativeN-glycoproteomics pipeline.
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Affiliation(s)
- Yue Wang
- School of Chemical Science & Engineering
- Shanghai Key Laboratory of Chemical Assessment and Sustainability
- Tongji University
- Shanghai 200092
- China
| | - Feifei Xu
- School of Pharmacy
- Nanjing Medical University
- Nanjing 211166
- China
| | - Kaijie Xiao
- School of Chemical Science & Engineering
- Shanghai Key Laboratory of Chemical Assessment and Sustainability
- Tongji University
- Shanghai 200092
- China
| | - Yun Chen
- School of Pharmacy
- Nanjing Medical University
- Nanjing 211166
- China
| | - Zhixin Tian
- School of Chemical Science & Engineering
- Shanghai Key Laboratory of Chemical Assessment and Sustainability
- Tongji University
- Shanghai 200092
- China
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43
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Paquette MM, Plaul D, Kurimoto A, Patrick BO, Frank NL. Opto-Spintronics: Photoisomerization-Induced Spin State Switching at 300 K in Photochrome Cobalt-Dioxolene Thin Films. J Am Chem Soc 2018; 140:14990-15000. [PMID: 30351017 DOI: 10.1021/jacs.8b09190] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Controllable quantum systems are under active investigation for quantum computing, secure information processing, and nonvolatile memory. The optical manipulation of spin quantum states provides an important strategy for quantum control with both temporal and spatial resolution. Challenges in increasing the lifetime of photoinduced magnetic states at T > 200 K have hindered progress toward utilizing photomagnetic materials in quantum device architectures. Here we demonstrate reversible light-induced magnetization switching in an organic thin film at device operating temperatures of 300-330 K. By utilizing photochromic ligands that undergo structural changes in the solid state, the changes in ligand field associated with photoisomerization modulate the ligand field and in turn the oxidation and spin state of a bound metal center. Green light irradiation (λexc = 550 nm) of a spirooxazine cobalt-dioxolene complex induces photoisomerization of the ligand that in turn triggers a reversible intramolecular charge-transfer coupled spin-transition process at the cobalt center. The generation of photomagnetic states through conversion between a low-spin Co(III)-semiquinone doublet and a high-spin Co(II)-bis-semiquinone sextet state has been demonstrated in both solution and the solid state and is described as a photoisomerization-induced spin-charge excited state (PISCES) process. The high transition temperature (325 K) and long-lived photoinduced state (τ = 10 s at 300 K) are dictated by the photochromic ligand. Theory provides effective modeling of the phenomenon and long-term strategies to further modulate the lifetimes of photomagnetic states for quantum information technologies at the single molecule level.
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Affiliation(s)
- Michelle M Paquette
- Department of Chemistry , University of Victoria , PO Box 1700 STN CSC , Victoria , British Columbia V8W 2Y2 , Canada
| | - Daniel Plaul
- Department of Chemistry , University of Victoria , PO Box 1700 STN CSC , Victoria , British Columbia V8W 2Y2 , Canada
| | - Aiko Kurimoto
- Department of Chemistry , University of Victoria , PO Box 1700 STN CSC , Victoria , British Columbia V8W 2Y2 , Canada
| | - Brian O Patrick
- Department of Chemistry , University of British Columbia , Vancouver , British Columbia V6T 1Z1 , Canada
| | - Natia L Frank
- Department of Chemistry , University of Victoria , PO Box 1700 STN CSC , Victoria , British Columbia V8W 2Y2 , Canada
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44
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Shao B, Baroncini M, Qian H, Bussotti L, Di Donato M, Credi A, Aprahamian I. Solution and Solid-State Emission Toggling of a Photochromic Hydrazone. J Am Chem Soc 2018; 140:12323-12327. [PMID: 30251843 PMCID: PMC6693799 DOI: 10.1021/jacs.8b07108] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Indexed: 12/19/2022]
Abstract
The proliferation of light-activated switches in recent years has enabled their use in a broad range of applications encompassing an array of research fields and disciplines. All current systems, however, have limitations (e.g., from complicated synthesis to incompatibility in biologically relevant media and lack of switching in the solid-state) that can stifle their real-life application. Here we report on a system that packs most, if not all, the desired, targeted and sought-after traits from photochromic compounds (bistability, switching in various media ranging from serum to solid-state, while exhibiting ON/OFF fluorescence emission switching, and two-photon assisted near-infrared light toggling) in an easily accessible structure.
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Affiliation(s)
- Baihao Shao
- Department
of Chemistry, Dartmouth College, Hanover, New Hampshire 03755, United States
| | - Massimo Baroncini
- Center
for Light Activated Nanostructures (CLAN), Università di Bologna and Consiglio Nazionale delle Ricerche, via Gobetti 101, 40129 Bologna, Italy
- Dipartimento
di Scienze e Tecnologie Agro-alimentari, Università di Bologna, viale Fanin 50, 40127 Bologna, Italy
| | - Hai Qian
- Department
of Chemistry, Dartmouth College, Hanover, New Hampshire 03755, United States
| | - Laura Bussotti
- LENS
− European Laboratory for Non-linear Spectroscopy, via N. Carrara 1, 50019 Sesto Fiorentino (FI), Italy
- INO
− Istituto Nazionale di Ottica, Largo Enrico Fermi 6, 50125 Firenze, Italy
| | - Mariangela Di Donato
- LENS
− European Laboratory for Non-linear Spectroscopy, via N. Carrara 1, 50019 Sesto Fiorentino (FI), Italy
- INO
− Istituto Nazionale di Ottica, Largo Enrico Fermi 6, 50125 Firenze, Italy
| | - Alberto Credi
- Center
for Light Activated Nanostructures (CLAN), Università di Bologna and Consiglio Nazionale delle Ricerche, via Gobetti 101, 40129 Bologna, Italy
- Dipartimento
di Scienze e Tecnologie Agro-alimentari, Università di Bologna, viale Fanin 50, 40127 Bologna, Italy
| | - Ivan Aprahamian
- Department
of Chemistry, Dartmouth College, Hanover, New Hampshire 03755, United States
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45
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Chojnacki J, Eggeling C. Super-resolution fluorescence microscopy studies of human immunodeficiency virus. Retrovirology 2018; 15:41. [PMID: 29884197 PMCID: PMC5994058 DOI: 10.1186/s12977-018-0424-3] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Accepted: 05/28/2018] [Indexed: 11/10/2022] Open
Abstract
Super-resolution fluorescence microscopy combines the ability to observe biological processes beyond the diffraction limit of conventional light microscopy with all advantages of the fluorescence readout such as labelling specificity and non-invasive live-cell imaging. Due to their subdiffraction size (< 200 nm) viruses are ideal candidates for super-resolution microscopy studies, and Human Immunodeficiency Virus type 1 (HIV-1) is to date the most studied virus by this technique. This review outlines principles of different super-resolution techniques as well as their advantages and disadvantages for virological studies, especially in the context of live-cell imaging applications. We highlight the findings of super-resolution based HIV-1 studies performed so far, their contributions to the understanding of HIV-1 replication cycle and how the current advances in super-resolution microscopy may open new avenues for future virology research.
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Affiliation(s)
- Jakub Chojnacki
- MRC Human Immunology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, OX3 9DS, UK.
| | - Christian Eggeling
- MRC Human Immunology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, OX3 9DS, UK
- Institute of Applied Optics, Friedrich-Schiller-University Jena, Max-Wien Platz 4, 07743, Jena, Germany
- Leibniz Institute of Photonic Technology e.V., Albert-Einstein-Straße 9, 07745, Jena, Germany
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