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Chen YF, Pruthi V, Lee LR, Liu YC, Chang MH, Théato P, Chen JT. Illuminating Biomimetic Nanochannels: Unveiling Macroscopic Anticounterfeiting and Photoswitchable Ion Conductivity via Polymer Tailoring. ACS NANO 2024; 18:26948-26960. [PMID: 39302690 PMCID: PMC11447919 DOI: 10.1021/acsnano.4c08801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/22/2024]
Abstract
Artificial photomodulated channels represent a significant advancement toward practical photogated systems because of their remote noncontact stimulation. Ion transport behaviors in artificial photomodulated channels, however, still require further investigation, especially in multiple nanochannels that closely resemble biological structures. Herein, we present the design and development of photoswitchable ion nanochannels inspired by natural channelrhodopsins (ChRs), utilizing photoresponsive polymers grafted anodic aluminum oxide (AAO) membranes. Our approach integrates spiropyran (SP) as photoresponsive molecules into nanochannels through surface-initiated atom transfer radical polymerization (SI-ATRP), creating a responsive system that modulates ionic conductivity and hydrophilicity in response to light stimuli. A key design feature is the reversible ring-opening photoisomerization of spiropyran groups under UV irradiation. This transformation, observable at the molecular level and macroscopically, allows the surface inside the nanochannels to switch between hydrophobic and hydrophilic states, thus efficiently modulating ion transport via changing water wetting behaviors. The patternable and erasable polySP-grafted AAO, based on a controllable and reversible photochromic effect, also shows potential applications in anticounterfeiting. This study pioneers achieving macroscopic anticounterfeiting and photoinduced photoswitching through reversible surface chemistry and expands the application of polymer-grafted structures in multiple nanochannels.
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Affiliation(s)
- Yi-Fan Chen
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, 300093 Hsinchu, Taiwan
| | - Vaishali Pruthi
- Institute for Chemical Technology and Polymer Chemistry (ITCP), Karlsruhe Institute of Technology (KIT), Kaiserstraße 12, D-76131 Karlsruhe, Germany
| | - Lin-Ruei Lee
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, 300093 Hsinchu, Taiwan
| | - Yu-Chun Liu
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, 300093 Hsinchu, Taiwan
| | - Ming-Hsuan Chang
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, 300093 Hsinchu, Taiwan
| | - Patrick Théato
- Institute for Chemical Technology and Polymer Chemistry (ITCP), Karlsruhe Institute of Technology (KIT), Kaiserstraße 12, D-76131 Karlsruhe, Germany
- Soft Matter Synthesis Laboratory Institute for Biological Interfaces III, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany
| | - Jiun-Tai Chen
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, 300093 Hsinchu, Taiwan
- Center for Emergent Functional Matter Science, National Yang Ming Chiao Tung University, 300093 Hsinchu, Taiwan
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2
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Pugachev AD, Kozlenko AS, Makarova NI, Rostovtseva IA, Ozhogin IV, Dmitriev VS, Borodkin GS, Tkachev VV, Utenyshev AN, Sazykina MA, Sazykin IS, Azhogina TN, Karchava SK, Klimova MV, Metelitsa AV, Lukyanov BS. Molecular design and synthesis of methoxy-substitued spiropyrans with photomodulated NIR-fluorescence. Photochem Photobiol Sci 2023; 22:2651-2673. [PMID: 37733213 DOI: 10.1007/s43630-023-00479-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 08/28/2023] [Indexed: 09/22/2023]
Abstract
This study focuses on the molecular design and synthesis of salt spiropyrans with near-IR fluorescence. The structure of the obtained compounds was confirmed by NMR, IR and mass spectroscopy. In the course of studying the spectral and photoluminescent characteristics, it was possible to reveal the effect of some substituents in various positions on the properties of spiropyran dyes. Due to the structural similarity of one of the isomers to cyanine dyes, the obtained compounds are of interest as potential fluorescent probes for bioimagimg, in particular, for DNA studies. To reveal their ability of binding to DNA molecules molecular docking was carried out. Toxic effects of compounds demonstrating NIR fluorescence were studied on biofilms, as well as using bacterial lux-biosensors.
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Affiliation(s)
- Artem D Pugachev
- Institute of Physical and Organic Chemistry, Southern Federal University, 344090 Stachki prosp., 194/2, Rostov-On-Don, Russian Federation.
| | - Anastasia S Kozlenko
- Institute of Physical and Organic Chemistry, Southern Federal University, 344090 Stachki prosp., 194/2, Rostov-On-Don, Russian Federation
| | - Nadezhda I Makarova
- Institute of Physical and Organic Chemistry, Southern Federal University, 344090 Stachki prosp., 194/2, Rostov-On-Don, Russian Federation
| | - Irina A Rostovtseva
- Institute of Physical and Organic Chemistry, Southern Federal University, 344090 Stachki prosp., 194/2, Rostov-On-Don, Russian Federation
| | - Ilya V Ozhogin
- Institute of Physical and Organic Chemistry, Southern Federal University, 344090 Stachki prosp., 194/2, Rostov-On-Don, Russian Federation
| | - Vitaly S Dmitriev
- Institute of Physical and Organic Chemistry, Southern Federal University, 344090 Stachki prosp., 194/2, Rostov-On-Don, Russian Federation
| | - Gennady S Borodkin
- Institute of Physical and Organic Chemistry, Southern Federal University, 344090 Stachki prosp., 194/2, Rostov-On-Don, Russian Federation
| | - Valery V Tkachev
- Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry RAS, 142432 Ac. Semenov Avenue, 1, Moscow Region, Chernogolovka, Russian Federation
| | - Andrey N Utenyshev
- Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry RAS, 142432 Ac. Semenov Avenue, 1, Moscow Region, Chernogolovka, Russian Federation
| | - Marina A Sazykina
- Academy of Biology and Biotechnologies, Southern Federal University, 344090 Stachki prosp., 194/1, Rostov-On-Don, Russian Federation
| | - Ivan S Sazykin
- Academy of Biology and Biotechnologies, Southern Federal University, 344090 Stachki prosp., 194/1, Rostov-On-Don, Russian Federation
| | - Tatiana N Azhogina
- Academy of Biology and Biotechnologies, Southern Federal University, 344090 Stachki prosp., 194/1, Rostov-On-Don, Russian Federation
| | - Shorena K Karchava
- Academy of Biology and Biotechnologies, Southern Federal University, 344090 Stachki prosp., 194/1, Rostov-On-Don, Russian Federation
| | - Maria V Klimova
- Academy of Biology and Biotechnologies, Southern Federal University, 344090 Stachki prosp., 194/1, Rostov-On-Don, Russian Federation
| | - Anatoly V Metelitsa
- Institute of Physical and Organic Chemistry, Southern Federal University, 344090 Stachki prosp., 194/2, Rostov-On-Don, Russian Federation
| | - Boris S Lukyanov
- Institute of Physical and Organic Chemistry, Southern Federal University, 344090 Stachki prosp., 194/2, Rostov-On-Don, Russian Federation
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3
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Zhong W, Liang K, Liu W, Shang L. Ligand-protected nanocluster-mediated photoswitchable fluorescent nanoprobes towards dual-color cellular imaging. Chem Sci 2023; 14:8823-8830. [PMID: 37621438 PMCID: PMC10445476 DOI: 10.1039/d3sc03593j] [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: 07/13/2023] [Accepted: 07/29/2023] [Indexed: 08/26/2023] Open
Abstract
Development of robust multi-color photoswitchable fluorescent probes is critical for many optical applications, but it remains a challenge to rationally design these probes. Here, we report a new design of Förster resonance energy transfer-based dual-color photoswitchable fluorescent nanoparticles (DPF NPs) by taking advantage of the distinct properties of ligand-protected gold nanoclusters (AuNCs). Detailed photophysical studies revealed that ultrasmall-sized AuNCs not only act as the FRET donors due to their intrinsic fluorescence properties, but also play a significant role in regulating the photochromic and aggregate properties of spiropyran through ligand-spiropyran interactions. These DPF NPs exhibit a high fluorescence on/off ratio (∼90%) for both green and red fluorescence emission, and good reversibility during cycled photo-stimulation. Cell imaging experiments showed that DPF NPs could specifically accumulate in lipid droplets, and enable photoswitchable dual-color imaging in living cells. Moreover, by labeling mitochondria with a green-emitting marker, we demonstrated that DPF NPs can distinguish different targets based on dynamic and static fluorescence signals at the sub-cellular level in two emission channels reliably. This study provides a new strategy for designing robust photoswitchable fluorescent probes by modulating the properties of photochromic dyes through ligand-protected nanoclusters, which can be generalized for the development of other photoswitch systems towards advanced optical applications.
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Affiliation(s)
- Wencheng Zhong
- State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University (NPU) Xi'an 710072 China
| | - Kangqiang Liang
- State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University (NPU) Xi'an 710072 China
| | - Wenfeng Liu
- State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University (NPU) Xi'an 710072 China
| | - Li Shang
- State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University (NPU) Xi'an 710072 China
- Research & Development Institute of Northwestern Polytechnical University in Shenzhen Shenzhen 518057 China
- Chongqing Science and Technology Innovation Center of Northwestern Polytechnical University Chongqing 401135 China
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4
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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: 15] [Impact Index Per Article: 15.0] [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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5
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Kozlenko AS, Ozhogin IV, Pugachev AD, Lukyanova MB, El-Sewify IM, Lukyanov BS. A Modern Look at Spiropyrans: From Single Molecules to Smart Materials. Top Curr Chem (Cham) 2023; 381:8. [PMID: 36624333 DOI: 10.1007/s41061-022-00417-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 11/30/2022] [Indexed: 01/11/2023]
Abstract
Photochromic compounds of the spiropyran family have two main isomers capable of inter-switching with UV or visible light. In the current review, we discuss recent advances in the synthesis, investigation of properties, and applications of spiropyran derivatives. Spiropyrans of the indoline series are in focus as the most promising representatives of multi-sensitive spirocyclic compounds, which can be switched by a number of external stimuli, including light, temperature, pH, presence of metal ions, and mechanical stress. Particular attention is paid to the structural features of molecules, their influence on photochromic properties, and the reactions taking place during isomerization, as the understanding of the structure-property relationships will rationalize the synthesis of compounds with predetermined characteristics. The main prospects for applications of spiropyrans in such fields as smart material production, molecular electronics and nanomachinery, sensing of environmental and biological molecules, and photopharmacology are also discussed.
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Affiliation(s)
- Anastasia S Kozlenko
- Institute of Physical and Organic Chemistry, Southern Federal University, Stachki Prosp., 194/2, Rostov-On-Don, 344090, Russia.
| | - Ilya V Ozhogin
- Institute of Physical and Organic Chemistry, Southern Federal University, Stachki Prosp., 194/2, Rostov-On-Don, 344090, Russia
| | - Artem D Pugachev
- Institute of Physical and Organic Chemistry, Southern Federal University, Stachki Prosp., 194/2, Rostov-On-Don, 344090, Russia
| | - Maria B Lukyanova
- Institute of Physical and Organic Chemistry, Southern Federal University, Stachki Prosp., 194/2, Rostov-On-Don, 344090, Russia
| | - Islam M El-Sewify
- Institute of Physical and Organic Chemistry, Southern Federal University, Stachki Prosp., 194/2, Rostov-On-Don, 344090, Russia.,Department of Chemistry, Faculty of Science, Ain Shams University, Cairo, Egypt
| | - Boris S Lukyanov
- Institute of Physical and Organic Chemistry, Southern Federal University, Stachki Prosp., 194/2, Rostov-On-Don, 344090, Russia
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6
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Pugachev AD, Ozhogin IV, Kozlenko AS, Tkachev VV, Shilov GV, Makarova NI, Rostovtseva IA, Borodkin GS, El-Sewify IM, Aldoshin SM, Metelitsa AV, Lukyanov BS. Comprehensive study of substituent effects on structure and photochromic properties of 1,3-benzoxazine-4-one spiropyrans. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2022.134898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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7
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Fu Y, Zhang X, Liu J, Qian G, Xu ZP, Zhang R. Fluorescence detection and imaging of intracellular sulphite using a remote light activatable photochromic nanoprobe. J Mater Chem B 2022; 10:3366-3374. [PMID: 35383812 DOI: 10.1039/d2tb00021k] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The development of a responsive fluorescent probe for the detection of a particular biomolecule in a specific site at the desired moment is important in the fields of bioanalysis and imaging, molecular biology and biomedical research. In this work, we report the development of a remote-light activatable nanoprobe for the fluorescence detection of sulphite in pure aqueous solution and its imaging applications in living cells. The nanoprobe, Poly-Cm-SP, is fabricated simply by wrapping photochromic molecules (Cm-SP) into a polymer nanoparticle. Upon alternate UV/Vis light irradiation for several seconds, the Poly-Cm-SP nanoprobe exhibits red/blue fluorescence switch due to the inactive/active FRET processes from coumarins to the SP/MR isomers of the photochromic molecule. In the presence of sulphite, the specific reaction of sulphite with the electron deficit "CC" bond of the MR isomer occurs, resulting in an inefficient FRET process and thus exhibiting a constant "ON" blue channel fluorescence signal. After UV-light irradiation, the formation of activated Poly-Cm-MRin situ thus enables the detection of sulphite through recording the ratiometric changes of fluorescence signals at both blue and red channels. The Poly-Cm-SP nanoprobe possesses excellent biocompatibility and lysosome distribution capability, allowing it to be used for photochromic imaging and sulphite detection in the lysosomes of living macrophage cells. This work thus offers a new remote-light activatable nanoprobe for the detection and imaging of sulphite in biological systems.
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Affiliation(s)
- Youxin Fu
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, QLD 4072, Australia.
| | - Xing Zhang
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, QLD 4072, Australia. .,School of Environmental Science and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Jianping Liu
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, QLD 4072, Australia.
| | - Guangren Qian
- School of Environmental Science and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Zhi Ping Xu
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, QLD 4072, Australia.
| | - Run Zhang
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, QLD 4072, Australia.
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8
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Xiao X, Zheng W, Zhao Y, Li CH. Visible light responsive spiropyran derivatives based on dynamic coordination bonds. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.04.055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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9
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Berdnikova DV. Photoswitches for controllable RNA binding: a future approach in the RNA-targeting therapy. Chem Commun (Camb) 2021; 57:10819-10826. [PMID: 34585681 DOI: 10.1039/d1cc04241f] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
RNA is an emerging drug target that opens new perspectives in the treatment of viral and bacterial infections, cancer and a range of so far incurable genetic diseases. Among the various strategies towards the design and development of selective and efficient ligands for targeting and detection of therapeutically relevant RNA, photoswitchable RNA binders represent a very promising approach due to the possibility to control the ligand-RNA and protein-RNA interactions by light with high spatiotemporal resolution. However, the field of photoswitchable RNA binders still remains underexplored due to challenging design of lead structures that should combine high RNA binding selectivity with efficient photochemical performance. The aim of this highlight article is to describe the development of photoswitchable noncovalent RNA binders and to outline the current situation and perspectives of this emerging interdisciplinary field.
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Affiliation(s)
- Daria V Berdnikova
- Universität Siegen, Organische Chemie II, Adolf-Reichwein-Str. 2, 57076 Siegen, Germany.
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10
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Ozhogin IV, Zolotukhin PV, Mukhanov EL, Rostovtseva IA, Makarova NI, Tkachev VV, Beseda DK, Metelitsa AV, Lukyanov BS. Novel molecular hybrids of indoline spiropyrans and α-lipoic acid as potential photopharmacological agents: Synthesis, structure, photochromic and biological properties. Bioorg Med Chem Lett 2021; 31:127709. [PMID: 33242575 DOI: 10.1016/j.bmcl.2020.127709] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Revised: 11/16/2020] [Accepted: 11/18/2020] [Indexed: 11/18/2022]
Abstract
Organic photochromic compounds are attracting great interest as photoswitchable components of various bioconjugates for using in photopharmacology, targeted drug delivery and bio-imaging. Here we report on the synthesis of two novel molecular hybrids of indoline spiropyrans and alpha-lipoic acid via an esterification reaction. Preliminary photochemical studies revealed photochromic activity of 5-methoxy-substituted spirocompounds in their acetonitrile solutions. Both hybrid spiropyrans along with their parent substances in the hybrids were tested for the short-term cytotoxicity on HeLa cell cultures. The results of cytotoxicity studies showed unpredictable biocompatibility of the hybrids in comparison with the parent hydroxyl-substituted spiropyrans and α-lipoic acid, especially at the relatively high concentration of 2 mM. Using flow cytometry, we demonstrated that the both hybrids induced antioxidant response in the model cells. After the 24 h treatment, the hybrids administered at lower (500 µM) concentration caused suppressed cytosolic ROS and/or induced cellular thiols. At higher concentration, one of the hybrids demonstrated properties qualitatively similar to alpha-lipoic acid, yet far more strong. Together, flow cytometry results suggested that both hybrids of spiropyrans possess emergent biochemical and signaling antioxidant properties, exceeding those of alpha-lipoic acid.
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Affiliation(s)
- Ilya V Ozhogin
- Institute of Physical and Organic Chemistry, Southern Federal University, 194/2 Stachka Ave., 344090 Rostov-on-Don, Russian Federation.
| | - Peter V Zolotukhin
- Academy of Biology and Biotechnology, Southern Federal University, 194/1 Stachka Ave., 344090 Rostov-on-Don, Russian Federation
| | - Eugene L Mukhanov
- Institute of Physical and Organic Chemistry, Southern Federal University, 194/2 Stachka Ave., 344090 Rostov-on-Don, Russian Federation
| | - Irina A Rostovtseva
- Institute of Physical and Organic Chemistry, Southern Federal University, 194/2 Stachka Ave., 344090 Rostov-on-Don, Russian Federation
| | - Nadezhda I Makarova
- Institute of Physical and Organic Chemistry, Southern Federal University, 194/2 Stachka Ave., 344090 Rostov-on-Don, Russian Federation
| | - Valery V Tkachev
- Institute of Problems of Chemical Physics, Russian Academy of Sciences, 1 Akad. Semenova Ave., 142432 Chernogolovka, Moscow Region, Russian Federation
| | - Darya K Beseda
- Academy of Biology and Biotechnology, Southern Federal University, 194/1 Stachka Ave., 344090 Rostov-on-Don, Russian Federation
| | - Anatoly V Metelitsa
- Institute of Physical and Organic Chemistry, Southern Federal University, 194/2 Stachka Ave., 344090 Rostov-on-Don, Russian Federation
| | - Boris S Lukyanov
- Institute of Physical and Organic Chemistry, Southern Federal University, 194/2 Stachka Ave., 344090 Rostov-on-Don, Russian Federation
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11
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Ozhogin IV, Mukhanov EL, Chernyshev AV, Pugachev AD, Lukyanov BS, Metelitsa AV. Synthesis and study of new photochromic unsymmetrical bis-spiropyrans with nonequivalent heteroarene fragments conjugated through the common 2H,8H-pyrano[2,3-f]chromene moiety. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128808] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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12
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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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13
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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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14
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Photoswitchable azobenzene functionalized anthraquinone and benzimidazole Ru(II)-p-cymene organometallic complexes. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2020.121203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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15
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Pugachev AD, Ozhogin IV, Lukyanova MB, Lukyanov BS, Rostovtseva IA, Dorogan IV, Makarova NI, Tkachev VV, Metelitsa AV, Aldoshin SM. Visible to near-IR molecular switches based on photochromic indoline spiropyrans with a conjugated cationic fragment. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 230:118041. [PMID: 31955116 DOI: 10.1016/j.saa.2020.118041] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2019] [Revised: 12/31/2019] [Accepted: 01/05/2020] [Indexed: 06/10/2023]
Abstract
Photochromic molecules which can absorb and emit light within the "biological window" (650-1450 nm) are of great interest for using in various important biomedical applications such as bio-imaging, photopharmacology, targeted drug delivery, etc. Here we present three new indoline spiropyrans containing conjugated cationic fragments and halogen substituents in the 2H-chromene moiety which were synthesized by a simple one-pot method. The molecular structure of the obtained compounds was confirmed by FT-IR, 1H and 13C NMR spectroscopy (including 2D methods), HRMS, elemental and single crystal X-ray analysis. Photochemical studies revealed the photochromic activity of spiropyrans at room temperature which caused photoswitchable fluorescence in the near-IR region after UV-irradiation. While the spirocyclic forms of compounds demonstrated absorption bands in the UV-Vis spectra with maxima in the visible region at about 445 nm and were not fluorescent, the photogenerated merocyanine isomers absorbed in the near-IR range at 708-738 nm and emitted at 768-791 nm. It was found that compound 1a with fluorine substituent possesses the most red-shifted absorption and emission bands of merocyanine form among all the known photochromic spiropyrans with maxima at 738 and 791 nm correspondingly. TD DFT calculations have shown that the longest wavelength absorption maxima of the merocyanine forms correspond to S0-S1 transitions of the isomers with at least one trans-trans-trans-configured vinylindolium fragment which brings them closer to cyanine-like structure and causes an appearance of the absorption and emission bands in the near-IR region.
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Affiliation(s)
- Artem D Pugachev
- Institute of Physical and Organic Chemistry, Southern Federal University, 194/2 Stachka ave., 344090 Rostov-on-Don, Russian Federation
| | - Ilya V Ozhogin
- Institute of Physical and Organic Chemistry, Southern Federal University, 194/2 Stachka ave., 344090 Rostov-on-Don, Russian Federation.
| | - Maria B Lukyanova
- Institute of Physical and Organic Chemistry, Southern Federal University, 194/2 Stachka ave., 344090 Rostov-on-Don, Russian Federation
| | - Boris S Lukyanov
- Institute of Physical and Organic Chemistry, Southern Federal University, 194/2 Stachka ave., 344090 Rostov-on-Don, Russian Federation; Don State Technical University, 1 Gagarin sq., 344000 Rostov-on-Don, Russian Federation
| | - Irina A Rostovtseva
- Institute of Physical and Organic Chemistry, Southern Federal University, 194/2 Stachka ave., 344090 Rostov-on-Don, Russian Federation
| | - Igor V Dorogan
- Institute of Physical and Organic Chemistry, Southern Federal University, 194/2 Stachka ave., 344090 Rostov-on-Don, Russian Federation
| | - Nadezhda I Makarova
- Institute of Physical and Organic Chemistry, Southern Federal University, 194/2 Stachka ave., 344090 Rostov-on-Don, Russian Federation
| | - Valery V Tkachev
- Institute of Problems of Chemical Physics, Russian Acadeemy of Sciences, 1 Akad. Semenova ave., 142432 Chernogolovka, Moscow Region, Russian Federation; Institute of Physiologically Active Substances, 1 Severny proezd, 142432 Chernogolovka, Moscow Region, Russian Federation
| | - Anatoly V Metelitsa
- Institute of Physical and Organic Chemistry, Southern Federal University, 194/2 Stachka ave., 344090 Rostov-on-Don, Russian Federation
| | - Sergey M Aldoshin
- Institute of Problems of Chemical Physics, Russian Acadeemy of Sciences, 1 Akad. Semenova ave., 142432 Chernogolovka, Moscow Region, Russian Federation
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16
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Photoactivatable fluorescent probes for spatiotemporal-controlled biosensing and imaging. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2020.115811] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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17
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Shao B, Aprahamian I. Planarization-Induced Activation Wavelength Red-Shift and Thermal Half-Life Acceleration in Hydrazone Photoswitches. ChemistryOpen 2020; 9:191-194. [PMID: 32025464 PMCID: PMC6996581 DOI: 10.1002/open.201900340] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 01/15/2020] [Indexed: 01/13/2023] Open
Abstract
The optimization and modulation of the properties of photochromic compounds, such as their activation wavelengths and thermal relaxation half-lives (τ1/2), are essential for their adaptation in various applications. In this work, we studied the effect of co-planarization of the rotary fragment of two photochromic hydrazones with the core of the molecule on their switching properties. The Z and E isomers of both compounds exhibit red-shifted absorption bands relative to their twisted versions, allowing for their photoswitching using longer wavelengths of light. Additionally, the thermal half-lives of both hydrazones are drastically shortened from hundreds of years to days.
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Affiliation(s)
- Baihao Shao
- Department of Chemistry Dartmouth College, 6128 Burke Laboratory Hanover New Hampshire 03755 USA
| | - Ivan Aprahamian
- Department of Chemistry Dartmouth College, 6128 Burke Laboratory Hanover New Hampshire 03755 USA
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18
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Belikov MY, Ievlev MY, Fedoseev SV, Ershov OV. The first example of “turn-off” red fluorescence photoswitching for the representatives of nitrile-rich negative photochromes. NEW J CHEM 2020. [DOI: 10.1039/d0nj00718h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The first example of reversible fluorescence photoswitching by visible light was shown for the representatives of negative photochromes containing a nitrile-rich acceptor.
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19
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Stimuli-chromism of photoswitches in smart polymers: Recent advances and applications as chemosensors. Prog Polym Sci 2019. [DOI: 10.1016/j.progpolymsci.2019.101149] [Citation(s) in RCA: 109] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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20
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Uno K, Bossi ML, Irie M, Belov VN, Hell SW. Reversibly Photoswitchable Fluorescent Diarylethenes Resistant against Photobleaching in Aqueous Solutions. J Am Chem Soc 2019; 141:16471-16478. [DOI: 10.1021/jacs.9b08748] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Kakishi Uno
- Department of NanoBiophotonics, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, 37077 Göttingen, Germany
| | - Mariano L. Bossi
- Department of Optical Nanoscopy, Max Planck Institute for Medical Research, Jahnstrasse 29, 69120 Heidelberg, Germany
| | - Masahiro Irie
- Research Center for Smart Molecules, Rikkyo University, Tokyo 171-8501, Japan
| | - Vladimir N. Belov
- Department of NanoBiophotonics, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, 37077 Göttingen, Germany
| | - Stefan W. Hell
- Department of NanoBiophotonics, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, 37077 Göttingen, Germany
- Department of Optical Nanoscopy, Max Planck Institute for Medical Research, Jahnstrasse 29, 69120 Heidelberg, Germany
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21
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Berdnikova DV. Visible-range hemi-indigo photoswitch: ON-OFF fluorescent binder for HIV-1 RNA. Chem Commun (Camb) 2019; 55:8402-8405. [PMID: 31257385 DOI: 10.1039/c9cc04270a] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A proof-of-principle for the application of hemi-indigo derivatives as RNA binders with photocontrollable fluorescence is presented. The photoswitch binds to the human immunodeficiency virus type 1 (HIV-1) RNA with a significant light-up effect. The fluorescence of the RNA-bound ligand can be reversibly switched ON and OFF by light without destroying the ligand-RNA associates.
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Affiliation(s)
- Daria V Berdnikova
- Universität Siegen, Organische Chemie II, Adolf-Reichwein-Str. 2, 57076 Siegen, Germany.
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22
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Mitra I, Paul S, Bardhan M, Das S, Saha M, Saha A, Ganguly T. Effects of carbon quantum dots (CQD) on the energy storage capacity of a novel synthesized short-chain dyad. Chem Phys Lett 2019. [DOI: 10.1016/j.cplett.2019.04.025] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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23
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Spiropyran as a potential molecular diagnostic tool for double-stranded RNA detection. BMC Biomed Eng 2019; 1:6. [PMID: 32903305 PMCID: PMC7421392 DOI: 10.1186/s42490-019-0008-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Accepted: 02/25/2019] [Indexed: 11/10/2022] Open
Abstract
Background Long double-stranded RNAs (dsRNAs) are duplex RNAs that can induce immune response when present in mammalian cells. These RNAs are historically associated with viral replication, but recent evidence suggests that human cells naturally encode endogenous dsRNAs that can regulate antiviral machineries in cellular contexts beyond immune response. Results In this study, we use photochromic organic compound spiropyran to profile and quantitate dsRNA expression. We show that the open form of spiropyran, merocyanine, can intercalate between RNA base pairs, which leads to protonation and alteration in the spectral property of the compound. By quantifying the spectral change, we can detect and quantify dsRNA expression level, both synthetic and cellular. We further demonstrate that spiropyrans can be used as a molecular diagnostic tool to profile endogenously expressed dsRNAs. Particularly, we show that spiropyrans can robustly detect elevated dsRNA levels when colorectal cancer cells are treated with 5-aza-2'-deoxycytidine, an FDA-approved DNA-demethylating agent used for chemotherapy, thus demonstrating the use of spiropyran for predicting responsiveness to the drug treatment. Conclusion As dsRNAs are signature of virus and accumulation of dsRNAs is implicated in various degenerative disease, our work establishes potential application of spiropyrans as a simple spectral tool to diagnose human disease based on dsRNA expression.
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24
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Fu Y, Han HH, Zhang J, He XP, Feringa BL, Tian H. Photocontrolled Fluorescence "Double-Check" Bioimaging Enabled by a Glycoprobe-Protein Hybrid. J Am Chem Soc 2018; 140:8671-8674. [PMID: 29940117 DOI: 10.1021/jacs.8b05425] [Citation(s) in RCA: 81] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Despite the rapid development of imaging techniques, precise probe localization and modulation in living cells is still a challenging task. Here we show that the simple hybridization between a photochromic fluorescent glycoprobe and human serum albumin (HSA) enables a unique fluorescence "double-check" mechanism for precisely localizing and manipulating probe molecules in living cells. Docking of a carbohydrate-modified naphthalimide (Naph)-spiropyran (SP) dyad to a hydrophobic pocket of HSA produces the glycoprobe-protein hybrid, causing the protein conformation to fold as determined by small-angle X-ray scattering. We show that the Naph and merocyanine (the photoisomer of SP) fluorescence of the resulting hybrid can be reversibly switched by light in buffer solution and in target cells overexpressing the carbohydrate receptor.
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Affiliation(s)
- Youxin Fu
- 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
| | - 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
| | - 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
| | - Ben L Feringa
- 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.,Centre for Systems Chemistry, Stratingh Institute for Chemistry and Zernike Institute for Advanced Materials, Faculty of Mathematics and Natural Sciences , University of Groningen , Nijenborgh 4 , 9747 AG Groningen , The Netherlands
| | - 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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25
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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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26
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Chromogenic systems based on 8-(1,3-benzoxazol-2-yl) substituted spirobenzopyrans undergoing ion modulated photochromic rearrangements. J Photochem Photobiol A Chem 2018. [DOI: 10.1016/j.jphotochem.2018.04.031] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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27
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Strakova K, Soleimanpour S, Diez-Castellnou M, Sakai N, Matile S. Ganglioside-Selective Mechanosensitive Fluorescent Membrane Probes. Helv Chim Acta 2018. [DOI: 10.1002/hlca.201800019] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Karolina Strakova
- Department of Organic Chemistry; University of Geneva; Quai Ernest Ansermet 30 CH-1211 Geneva 4 Switzerland
| | - Saeideh Soleimanpour
- Department of Organic Chemistry; University of Geneva; Quai Ernest Ansermet 30 CH-1211 Geneva 4 Switzerland
| | - Marta Diez-Castellnou
- Department of Organic Chemistry; University of Geneva; Quai Ernest Ansermet 30 CH-1211 Geneva 4 Switzerland
| | - Naomi Sakai
- Department of Organic Chemistry; University of Geneva; Quai Ernest Ansermet 30 CH-1211 Geneva 4 Switzerland
| | - Stefan Matile
- Department of Organic Chemistry; University of Geneva; Quai Ernest Ansermet 30 CH-1211 Geneva 4 Switzerland
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28
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Sylvia GM, Heng S, Bachhuka A, Ebendorff-Heidepriem H, Abell AD. A spiropyran with enhanced fluorescence: A bright, photostable and red-emitting calcium sensor. Tetrahedron 2018. [DOI: 10.1016/j.tet.2017.11.020] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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29
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Xiong Y, Vargas Jentzsch A, Osterrieth JWM, Sezgin E, Sazanovich IV, Reglinski K, Galiani S, Parker AW, Eggeling C, Anderson HL. Spironaphthoxazine switchable dyes for biological imaging. Chem Sci 2018; 9:3029-3040. [PMID: 29732087 PMCID: PMC5916019 DOI: 10.1039/c8sc00130h] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Accepted: 02/17/2018] [Indexed: 12/23/2022] Open
Abstract
Recent developments in super-resolution microscopy have significantly expanded the requirements for switchable dyes, leading to demand for specially designed molecular switches. We report the synthesis and characterization of a spironaphthoxazine photochromic switch (a derivative of palatinate purple) displaying high photoconversion (85-95%) under readily accessible 405 nm light, broad absorption in the visible, and excellent fatigue resistance. The indole substituent on this spironaphthoxazine is twisted out of conjugation with the naphthalene unit, yet it is crucial for activation with visible light. The open colored merocyanine form of the spironaphthoxazine reverts to the closed form with a lifetime of 4.7 s in dichloromethane at 20 °C; this thermal reversion is even faster in more polar solvents. The photochemical quantum yields for ring-opening and ring-closing are approximately 8% and 1%, respectively, in dichloromethane. The ring-opening and ring-closing reactions have been characterized by time-resolved infrared and transient absorption spectroscopies. Ring opening occurs rapidly (τ = 2.1 ns) and efficiently (∼90%) from the singlet excited state to form an intermediate (assigned as a cisoid merocyanine), which returns to the closed ground state (τ = 4.5 ns) in competition with relaxation to the transoid open form (τ = 40 ns). Photochemical ring closing is a faster and simpler process: the excited state proceeds to the closed spirooxazine with a time constant of 0.28 ns. This photochromic switch can be used in conjunction with commercial fluorescent dyes to create a small-molecule switchable fluorescent dyad that shows high contrast and good fatigue resistance in living cells. These properties make the dyads suitable for application in RESOLFT microscopy.
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Affiliation(s)
- Yaoyao Xiong
- Department of Chemistry , University of Oxford , Chemistry Research Laboratory , Oxford OX1 3TA , UK .
| | - Andreas Vargas Jentzsch
- Department of Chemistry , University of Oxford , Chemistry Research Laboratory , Oxford OX1 3TA , UK .
| | - Johannes W M Osterrieth
- Department of Chemistry , University of Oxford , Chemistry Research Laboratory , Oxford OX1 3TA , UK .
| | - Erdinc Sezgin
- MRC Human Immunology Unit , Weatherall Institute of Molecular Medicine , University of Oxford , OX3 9DS , Oxford , UK
| | - Igor V Sazanovich
- Central Laser Facility , Research Complex at Harwell, Science and Technology Facilities Council , Harwell Campus , Didcot OX11 0QX , UK
| | - Katharina Reglinski
- MRC Human Immunology Unit , Weatherall Institute of Molecular Medicine , University of Oxford , OX3 9DS , Oxford , UK
| | - Silvia Galiani
- MRC Human Immunology Unit , Weatherall Institute of Molecular Medicine , University of Oxford , OX3 9DS , Oxford , UK
| | - Anthony W Parker
- Central Laser Facility , Research Complex at Harwell, Science and Technology Facilities Council , Harwell Campus , Didcot OX11 0QX , UK
| | - Christian Eggeling
- MRC Human Immunology Unit , Weatherall Institute of Molecular Medicine , University of Oxford , OX3 9DS , Oxford , UK.,Institute of Applied Optics , Friedrich-Schiller-University Jena , Jena , Germany.,Leibniz Institute of Photonic Technology e.V. , Jena , Germany
| | - Harry L Anderson
- Department of Chemistry , University of Oxford , Chemistry Research Laboratory , Oxford OX1 3TA , UK .
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30
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Remote light-controlled intracellular target recognition by photochromic fluorescent glycoprobes. Nat Commun 2017; 8:987. [PMID: 29042558 PMCID: PMC5715093 DOI: 10.1038/s41467-017-01137-8] [Citation(s) in RCA: 95] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Accepted: 08/18/2017] [Indexed: 11/10/2022] Open
Abstract
Development of powerful fluorescence imaging probes and techniques sets the basis for the spatiotemporal tracking of cells at different physiological and pathological stages. While current imaging approaches rely on passive probe–analyte interactions, here we develop photochromic fluorescent glycoprobes capable of remote light-controlled intracellular target recognition. Conjugation between a fluorophore and spiropyran produces the photochromic probe, which is subsequently equipped with a glycoligand “antenna” to actively localize a target cell expressing a selective receptor. We demonstrate that the amphiphilic glycoprobes that form micelles in water can selectively enter the target cell to operate photochromic cycling as controlled by alternate UV/Vis irradiations. We further show that remote light conversion of the photochromic probe from one isomeric state to the other activates its reactivity toward a target intracellular analyte, producing locked fluorescence that is no longer photoisomerizable. We envision that this research may spur the use of photochromism for the development of bioimaging probes. Fluorescence sensing in biological environments is prone to background signal interference. Here the authors design a photochromic fluorescent glycoprobe for light-controlled photo-switchable cell imaging and photo-activated target recognition, resulting in an increased sensing precision.
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31
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Ghebreyessus K, Cooper SM. Photoswitchable Arylazopyrazole-Based Ruthenium(II) Arene Complexes. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00493] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Kesete Ghebreyessus
- Department of Chemistry and
Biochemistry, Hampton University, Hampton, Virginia 23668, United States
| | - Stefan M. Cooper
- Department of Chemistry and
Biochemistry, Hampton University, Hampton, Virginia 23668, United States
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32
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Sezgin E. Super-resolution optical microscopy for studying membrane structure and dynamics. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2017; 29:273001. [PMID: 28481213 PMCID: PMC5952331 DOI: 10.1088/1361-648x/aa7185] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Investigation of cell membrane structure and dynamics requires high spatial and temporal resolution. The spatial resolution of conventional light microscopy is limited due to the diffraction of light. However, recent developments in microscopy enabled us to access the nano-scale regime spatially, thus to elucidate the nanoscopic structures in the cellular membranes. In this review, we will explain the resolution limit, address the working principles of the most commonly used super-resolution microscopy techniques and summarise their recent applications in the biomembrane field.
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Affiliation(s)
- Erdinc Sezgin
- MRC Human Immunology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, OX39DS, United Kingdom
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33
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Ikeno T, Nagano T, Hanaoka K. Silicon-substituted Xanthene Dyes and Their Unique Photophysical Properties for Fluorescent Probes. Chem Asian J 2017; 12:1435-1446. [DOI: 10.1002/asia.201700385] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Revised: 04/26/2017] [Indexed: 01/16/2023]
Affiliation(s)
- Takayuki Ikeno
- Graduate School of Pharmaceutical Sciences; The University of Tokyo; 7-3-1, Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Tetsuo Nagano
- Drug Discovery Initiative; The University of Tokyo; 7-3-1, Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Kenjiro Hanaoka
- Graduate School of Pharmaceutical Sciences; The University of Tokyo; 7-3-1, Hongo, Bunkyo-ku Tokyo 113-0033 Japan
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34
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Klötzner DP, Klehs K, Heilemann M, Heckel A. A new photoactivatable near-infrared-emitting QCy7 fluorophore for single-molecule super-resolution microscopy. Chem Commun (Camb) 2017; 53:9874-9877. [DOI: 10.1039/c7cc04996j] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
In this work we present a new photoactivatable QCy7-based fluorophore and demonstrate its application in single-molecule super-resolution microscopy.
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Affiliation(s)
- Dean-Paulos Klötzner
- Goethe University Frankfurt
- Institute of Organic Chemistry and Chemical Biology
- 60438 Frankfurt
- Germany
| | - Kathrin Klehs
- Goethe University Frankfurt
- Institute of Physical and Theoretical Chemistry
- 60438 Frankfurt
- Germany
| | - Mike Heilemann
- Goethe University Frankfurt
- Institute of Physical and Theoretical Chemistry
- 60438 Frankfurt
- Germany
| | - Alexander Heckel
- Goethe University Frankfurt
- Institute of Organic Chemistry and Chemical Biology
- 60438 Frankfurt
- Germany
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35
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Tanioka M, Kamino S, Muranaka A, Shirasaki Y, Ooyama Y, Ueda M, Uchiyama M, Enomoto S, Sawada D. Water-tunable solvatochromic and nanoaggregate fluorescence: dual colour visualisation and quantification of trace water in tetrahydrofuran. Phys Chem Chem Phys 2017; 19:1209-1216. [DOI: 10.1039/c6cp06808a] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The spirolactone form of aminobenzopyranoxanthenes (ABPXs) exhibited dual solvatochromic and nanoaggregate fluorescence. This intriguing dual fluorescence presented a new detection principle for naked-eye visualisation and quantification of water in tetrahydrofuran.
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Affiliation(s)
- Masaru Tanioka
- Graduate School of Medicine
- Dentistry and Pharmaceutical Sciences
- Okayama University
- Okayama-shi
- Japan
| | - Shinichiro Kamino
- Graduate School of Medicine
- Dentistry and Pharmaceutical Sciences
- Okayama University
- Okayama-shi
- Japan
| | - Atsuya Muranaka
- Advanced Elements Chemistry Research Team
- RIKEN-CSRS, and Elements Chemistry Laboratory
- RIKEN
- Wako-shi
- Japan
| | - Yoshinao Shirasaki
- Graduate School of Pharmaceutical Sciences
- The University of Tokyo
- Bunkyo-ku
- Japan
| | - Yousuke Ooyama
- Department of Applied Chemistry
- Graduate School of Engineering
- Hiroshima University
- Higashi-Hiroshima 739-8527
- Japan
| | - Masashi Ueda
- Graduate School of Medicine
- Dentistry and Pharmaceutical Sciences
- Okayama University
- Okayama-shi
- Japan
| | - Masanobu Uchiyama
- Advanced Elements Chemistry Research Team
- RIKEN-CSRS, and Elements Chemistry Laboratory
- RIKEN
- Wako-shi
- Japan
| | - Shuichi Enomoto
- Graduate School of Medicine
- Dentistry and Pharmaceutical Sciences
- Okayama University
- Okayama-shi
- Japan
| | - Daisuke Sawada
- Graduate School of Medicine
- Dentistry and Pharmaceutical Sciences
- Okayama University
- Okayama-shi
- Japan
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