1
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Remmel M, Matthias J, Lincoln R, Keller-Findeisen J, Butkevich AN, Bossi ML, Hell SW. Photoactivatable Xanthone (PaX) Dyes Enable Quantitative, Dual Color, and Live-Cell MINFLUX Nanoscopy. SMALL METHODS 2024:e2301497. [PMID: 38497095 DOI: 10.1002/smtd.202301497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2023] [Revised: 02/06/2024] [Indexed: 03/19/2024]
Abstract
The single-molecule localization concept MINFLUX has triggered a reevaluation of the features of fluorophores for attaining nanometer-scale resolution. MINFLUX nanoscopy benefits from temporally controlled fluorescence ("on"/"off") photoswitching. Combined with an irreversible switching behavior, the localization process is expected to turn highly efficient and quantitative data analysis simple. The potential in the recently reported photoactivable xanthone (PaX) dyes is recognized to extend the list of molecular switches used for MINFLUX with 561 nm excitation beyond the fluorescent protein mMaple. The MINFLUX localization success rates of PaX560 , PaX+560, and mMaple are quantitatively compared by analyzing the effective labeling efficiency of endogenously tagged nuclear pore complexes. The PaX dyes prove to be superior to mMaple and on par with the best reversible molecular switches routinely used in single-molecule localization microscopy. Moreover, the rationally designed PaX595 is introduced for complementing PaX560 in dual color 561 nm MINFLUX imaging based on spectral classification and the deterministic, irreversible, and additive-independent nature of PaX photoactivation is showcased in fast live-cell MINFLUX imaging. The PaX dyes meet the demands of MINFLUX for a robust readout of each label position and fill the void of reliable fluorophores dedicated to 561 nm MINFLUX imaging.
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Affiliation(s)
- Michael Remmel
- Department of Optical Nanoscopy, Max Planck Institute for Medical Research, 69120, Heidelberg, Germany
| | - Jessica Matthias
- Department of Optical Nanoscopy, Max Planck Institute for Medical Research, 69120, Heidelberg, Germany
| | - Richard Lincoln
- Department of Optical Nanoscopy, Max Planck Institute for Medical Research, 69120, Heidelberg, Germany
| | - Jan Keller-Findeisen
- Department of NanoBiophotonics, Max Planck Institute for Multidisciplinary Sciences, 37077, Göttingen, Germany
| | - Alexey N Butkevich
- Department of Optical Nanoscopy, Max Planck Institute for Medical Research, 69120, Heidelberg, Germany
- Department of NanoBiophotonics, Max Planck Institute for Multidisciplinary Sciences, 37077, Göttingen, Germany
| | - Mariano L Bossi
- Department of Optical Nanoscopy, Max Planck Institute for Medical Research, 69120, Heidelberg, Germany
- Department of NanoBiophotonics, Max Planck Institute for Multidisciplinary Sciences, 37077, Göttingen, Germany
| | - Stefan W Hell
- Department of Optical Nanoscopy, Max Planck Institute for Medical Research, 69120, Heidelberg, Germany
- Department of NanoBiophotonics, Max Planck Institute for Multidisciplinary Sciences, 37077, Göttingen, Germany
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2
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Wei H, Xie M, Chen M, Jiang Q, Wang T, Xing P. Shedding light on cellular dynamics: the progress in developing photoactivated fluorophores. Analyst 2024; 149:689-699. [PMID: 38180167 DOI: 10.1039/d3an01994b] [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: 01/06/2024]
Abstract
Photoactivated fluorophores (PAFs) are highly effective imaging tools that exhibit a removal of caging groups upon light excitation, resulting in the restoration of their bright fluorescence. This unique property allows for precise control over the spatiotemporal aspects of small molecule substances, making them indispensable for studying protein labeling and small molecule signaling within live cells. In this comprehensive review, we explore the historical background of this field and emphasize recent advancements based on various reaction mechanisms. Additionally, we discuss the structures and applications of the PAFs. We firmly believe that the development of more novel PAFs will provide powerful tools to dynamically investigate cells and expand the applications of these techniques into new domains.
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Affiliation(s)
- Huihui Wei
- Key Laboratory of Natural Medicine and Immuno-Engineering, Henan University, Kaifeng 475004, China.
| | - Mingli Xie
- Key Laboratory of Natural Medicine and Immuno-Engineering, Henan University, Kaifeng 475004, China.
| | - Min Chen
- Key Laboratory of Natural Medicine and Immuno-Engineering, Henan University, Kaifeng 475004, China.
| | - Qinhong Jiang
- Key Laboratory of Natural Medicine and Immuno-Engineering, Henan University, Kaifeng 475004, China.
| | - Tenghui Wang
- Key Laboratory of Natural Medicine and Immuno-Engineering, Henan University, Kaifeng 475004, China.
| | - Panfei Xing
- Key Laboratory of Natural Medicine and Immuno-Engineering, Henan University, Kaifeng 475004, China.
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3
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Sanders EW, Carr AR, Bruggeman E, Körbel M, Benaissa SI, Donat RF, Santos AM, McColl J, O'Holleran K, Klenerman D, Davis SJ, Lee SF, Ponjavic A. resPAINT: Accelerating Volumetric Super-Resolution Localisation Microscopy by Active Control of Probe Emission. Angew Chem Int Ed Engl 2022; 61:e202206919. [PMID: 35876263 DOI: 10.1002/anie.202206919] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Indexed: 01/07/2023]
Abstract
Points for accumulation in nanoscale topography (PAINT) allows practically unlimited measurements in localisation microscopy but is limited by background fluorescence at high probe concentrations, especially in volumetric imaging. We present reservoir-PAINT (resPAINT), which combines PAINT and active control of probe photophysics. In resPAINT, an activatable probe "reservoir" accumulates on target, enabling a 50-fold increase in localisation rate versus conventional PAINT, without compromising contrast. By combining resPAINT with large depth-of-field microscopy, we demonstrate super-resolution imaging of entire cell surfaces. We generalise the approach by implementing various switching strategies and 3D imaging techniques. Finally, we use resPAINT with a Fab to image membrane proteins, extending the operating regime of PAINT to include a wider range of biological interactions.
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Affiliation(s)
- Edward W Sanders
- Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge, CB2 1EW, UK
| | - Alexander R Carr
- Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge, CB2 1EW, UK
| | - Ezra Bruggeman
- Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge, CB2 1EW, UK
| | - Markus Körbel
- Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge, CB2 1EW, UK
| | - Sarah I Benaissa
- Cambridge Advanced Imaging Centre, University of Cambridge, Cambridge, CB2 3DY, UK
| | - Robert F Donat
- Radcliffe Department of Medicine and United Kingdom Medical Research Council Human Immunology Unit, John Radcliffe Hospital, University of Oxford, Oxford, OX3 9DS, UK
| | - Ana M Santos
- Radcliffe Department of Medicine and United Kingdom Medical Research Council Human Immunology Unit, John Radcliffe Hospital, University of Oxford, Oxford, OX3 9DS, UK
| | - James McColl
- Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge, CB2 1EW, UK
| | - Kevin O'Holleran
- Cambridge Advanced Imaging Centre, University of Cambridge, Cambridge, CB2 3DY, UK
| | - David Klenerman
- Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge, CB2 1EW, UK
| | - Simon J Davis
- Radcliffe Department of Medicine and United Kingdom Medical Research Council Human Immunology Unit, John Radcliffe Hospital, University of Oxford, Oxford, OX3 9DS, UK
| | - Steven F Lee
- Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge, CB2 1EW, UK
| | - Aleks Ponjavic
- Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge, CB2 1EW, UK.,School of Physics and Astronomy, University of Leeds, Woodhouse Lane, Leeds, LS2 9JT, UK.,School of Food Science and Nutrition, University of Leeds, Woodhouse Lane, Leeds, LS2 9JT, UK
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4
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Sanders EW, Carr AR, Bruggeman E, Körbel M, Benaissa SI, Donat RF, Santos AM, McColl J, O'Holleran K, Klenerman D, Davis SJ, Lee SF, Ponjavic A. resPAINT: Accelerating Volumetric Super-Resolution Localisation Microscopy by Active Control of Probe Emission. ANGEWANDTE CHEMIE (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 134:e202206919. [PMID: 38505515 PMCID: PMC10946633 DOI: 10.1002/ange.202206919] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Indexed: 03/21/2024]
Abstract
Points for accumulation in nanoscale topography (PAINT) allows practically unlimited measurements in localisation microscopy but is limited by background fluorescence at high probe concentrations, especially in volumetric imaging. We present reservoir-PAINT (resPAINT), which combines PAINT and active control of probe photophysics. In resPAINT, an activatable probe "reservoir" accumulates on target, enabling a 50-fold increase in localisation rate versus conventional PAINT, without compromising contrast. By combining resPAINT with large depth-of-field microscopy, we demonstrate super-resolution imaging of entire cell surfaces. We generalise the approach by implementing various switching strategies and 3D imaging techniques. Finally, we use resPAINT with a Fab to image membrane proteins, extending the operating regime of PAINT to include a wider range of biological interactions.
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Affiliation(s)
- Edward W. Sanders
- Yusuf Hamied Department of ChemistryUniversity of CambridgeCambridgeCB2 1EWUK
| | - Alexander R. Carr
- Yusuf Hamied Department of ChemistryUniversity of CambridgeCambridgeCB2 1EWUK
| | - Ezra Bruggeman
- Yusuf Hamied Department of ChemistryUniversity of CambridgeCambridgeCB2 1EWUK
| | - Markus Körbel
- Yusuf Hamied Department of ChemistryUniversity of CambridgeCambridgeCB2 1EWUK
| | - Sarah I. Benaissa
- Cambridge Advanced Imaging CentreUniversity of CambridgeCambridgeCB2 3DYUK
| | - Robert F. Donat
- Radcliffe Department of Medicine and United Kingdom Medical Research Council Human Immunology UnitJohn Radcliffe HospitalUniversity of OxfordOxfordOX3 9DSUK
| | - Ana M. Santos
- Radcliffe Department of Medicine and United Kingdom Medical Research Council Human Immunology UnitJohn Radcliffe HospitalUniversity of OxfordOxfordOX3 9DSUK
| | - James McColl
- Yusuf Hamied Department of ChemistryUniversity of CambridgeCambridgeCB2 1EWUK
| | - Kevin O'Holleran
- Cambridge Advanced Imaging CentreUniversity of CambridgeCambridgeCB2 3DYUK
| | - David Klenerman
- Yusuf Hamied Department of ChemistryUniversity of CambridgeCambridgeCB2 1EWUK
| | - Simon J. Davis
- Radcliffe Department of Medicine and United Kingdom Medical Research Council Human Immunology UnitJohn Radcliffe HospitalUniversity of OxfordOxfordOX3 9DSUK
| | - Steven F. Lee
- Yusuf Hamied Department of ChemistryUniversity of CambridgeCambridgeCB2 1EWUK
| | - Aleks Ponjavic
- Yusuf Hamied Department of ChemistryUniversity of CambridgeCambridgeCB2 1EWUK
- School of Physics and AstronomyUniversity of LeedsWoodhouse LaneLeedsLS2 9JTUK
- School of Food Science and NutritionUniversity of LeedsWoodhouse LaneLeedsLS2 9JTUK
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5
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Zhukovsky D, Dar’in D, Bakulina O, Krasavin M. Preparation and Synthetic Applications of Five-to-Seven-Membered Cyclic α-Diazo Monocarbonyl Compounds. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27062030. [PMID: 35335391 PMCID: PMC8954351 DOI: 10.3390/molecules27062030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 03/16/2022] [Accepted: 03/16/2022] [Indexed: 11/16/2022]
Abstract
The reactivity of cyclic α-diazo monocarbonyl compounds differs from that of their acyclic counterparts. In this review, we summarize the current literature available on the synthesis and synthetic applications of three major classes of cyclic α-diazo monocarbonyl compounds: α-diazo ketones, α-diazo lactones and α-diazo lactams.
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Affiliation(s)
- Daniil Zhukovsky
- Research & Development Department, BratskChemSyntez LLC, PharmaSyntez Company, 5A/1 Kommunalnaya St., 665717 Bratsk, Russia;
| | - Dmitry Dar’in
- Institute of Chemistry, Saint Petersburg State University, 199034 Saint Petersburg, Russia;
- Correspondence: (D.D.); (M.K.)
| | - Olga Bakulina
- Institute of Chemistry, Saint Petersburg State University, 199034 Saint Petersburg, Russia;
| | - Mikhail Krasavin
- Institute of Chemistry, Saint Petersburg State University, 199034 Saint Petersburg, Russia;
- Immanuel Kant Baltic Federal University, 236041 Kaliningrad, Russia
- Correspondence: (D.D.); (M.K.)
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6
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Xing L, Wang B, Li J, Guo X, Lu X, Chen X, Sun H, Sun Z, Luo X, Qi S, Qian X, Yang Y. A Fluorogenic ONOO --Triggered Carbon Monoxide Donor for Mitigating Brain Ischemic Damage. J Am Chem Soc 2022; 144:2114-2119. [PMID: 35080381 DOI: 10.1021/jacs.2c00094] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Ischemia-reperfusion (I/R) injuries are from the secondary radicals of ONOO-. Direct radical scavenging is difficult because of their high reactivity. ONOO- is longer-lived than the radicals in the biological milieu. Scavenging ONOO- suppresses radical generation preventively. CO is neuroprotective during ischemia. With the scaffold of carbon-caged xanthene, we designed an OONO--triggered CO donor (PCOD585). Notably, PCOD585 exhibited a concomitant fluorescence turn-on upon ONOO-detection, facilitating microscopic monitoring. PCOD585 was cytoprotective in oxygen-glucose deprivation (OGD)-insulted PC-12 cells. It was permeable to the blood-brain barrier and further exhibited neuroprotective effects to MCAO rats by reducing infarction volume, cell apoptosis, and brain edema.
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Affiliation(s)
- Linfeng Xing
- State Key Laboratory of Bioreactor Engineering, Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Meilong Road 130, Shanghai 200237, China
| | - Bin Wang
- School of Medical Technology, Xuzhou Key Laboratory of Laboratory Diagnostics, Xuzhou Medical University, Tongshan Road 209, Xuzhou 221004, China.,Department of Laboratory Medicine, Affiliated Hospital of Xuzhou Medical University, Huaihai West Road 99, Xuzhou 221004, China
| | - Jin Li
- State Key Laboratory of Bioreactor Engineering, Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Meilong Road 130, Shanghai 200237, China
| | - Xinjian Guo
- School of Medical Technology, Xuzhou Key Laboratory of Laboratory Diagnostics, Xuzhou Medical University, Tongshan Road 209, Xuzhou 221004, China
| | - Xicun Lu
- State Key Laboratory of Bioreactor Engineering, Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Meilong Road 130, Shanghai 200237, China
| | - Xiaohua Chen
- State Key Laboratory of Bioreactor Engineering, Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Meilong Road 130, Shanghai 200237, China
| | - Haitao Sun
- State Key Laboratory of Precision Spectroscopy, School of Physics and Electronic Science, East China Normal University, Dongchuan Road 500, Shanghai 200241, China
| | - Zhenrong Sun
- State Key Laboratory of Precision Spectroscopy, School of Physics and Electronic Science, East China Normal University, Dongchuan Road 500, Shanghai 200241, China
| | - Xiao Luo
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Dongchuan Road 500, Shanghai 200241, China
| | - Suhua Qi
- School of Medical Technology, Xuzhou Key Laboratory of Laboratory Diagnostics, Xuzhou Medical University, Tongshan Road 209, Xuzhou 221004, China.,Department of Laboratory Medicine, Affiliated Hospital of Xuzhou Medical University, Huaihai West Road 99, Xuzhou 221004, China
| | - Xuhong Qian
- State Key Laboratory of Bioreactor Engineering, Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Meilong Road 130, Shanghai 200237, China.,Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Dongchuan Road 500, Shanghai 200241, China
| | - Youjun Yang
- State Key Laboratory of Bioreactor Engineering, Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Meilong Road 130, Shanghai 200237, China
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7
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Du J, Wei L. Multicolor Photoactivatable Raman Probes for Subcellular Imaging and Tracking by Cyclopropenone Caging. J Am Chem Soc 2021; 144:777-786. [PMID: 34913693 DOI: 10.1021/jacs.1c09689] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Photoactivatable probes, with high-precision spatial and temporal control, have largely advanced bioimaging applications, particularly for fluorescence microscopy. While emerging Raman probes have recently pushed the frontiers of Raman microscopy for noninvasive small-molecule imaging and supermultiplex optical imaging with superb sensitivity and specificity, photoactivatable Raman probes remain less explored. Here, we report the first general design of multicolor photoactivatable alkyne Raman probes based on cyclopropenone caging for live-cell imaging and tracking. The fast photochemically generated alkynes from cyclopropenones enable background-free Raman imaging with desired photocontrollable features. We first synthesized and spectroscopically characterized a series of model cyclopropenones and identified the suitable light-activating scaffold. We further engineered the scaffold for enhanced chemical stability in a live-cell environment and improved Raman sensitivity. Organelle-targeting probes were then generated to achieve targeted imaging of mitochondria, lipid droplets, endoplasmic reticulum, and lysosomes. Multiplexed photoactivated imaging and tracking at both subcellular and single-cell levels was next demonstrated to monitor the dynamic migration and interactions of the cellular contents. We envision that this general design of multicolor photoactivatable Raman probes would open up new ways for spatial-temporal controlled profiling and interrogations in complex biological systems with high information throughput.
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Affiliation(s)
- Jiajun Du
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Lu Wei
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
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8
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Butkevich AN, Weber M, Cereceda Delgado AR, Ostersehlt LM, D'Este E, Hell SW. Photoactivatable Fluorescent Dyes with Hydrophilic Caging Groups and Their Use in Multicolor Nanoscopy. J Am Chem Soc 2021; 143:18388-18393. [PMID: 34714070 PMCID: PMC8587603 DOI: 10.1021/jacs.1c09999] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
We propose a series of fluorescent dyes with hydrophilic carbamate caging groups that undergo rapid photoactivation under UV (≤400 nm) irradiation but do not undergo spurious two-photon activation with high-intensity (visible or infrared) light of about twice the wavelength. The caged fluorescent dyes and labels derived therefrom display high water solubility and convert upon photoactivation into validated super-resolution and live-cell-compatible fluorophores. In combination with popular fluorescent markers, multiple (up to six)-color images can be obtained with stimulated emission depletion nanoscopy. Moreover, individual fluorophores can be localized with precision <3 nm (standard deviation) using MINSTED and MINFLUX techniques.
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Affiliation(s)
- Alexey N Butkevich
- Department of Optical Nanoscopy, Max Planck Institute for Medical Research, Jahnstrasse 29, 69120 Heidelberg, Germany
| | - Michael Weber
- Department of NanoBiophotonics, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, 37077 Göttingen, Germany
| | - Angel R Cereceda Delgado
- Department of Optical Nanoscopy, Max Planck Institute for Medical Research, Jahnstrasse 29, 69120 Heidelberg, Germany.,Department of NanoBiophotonics, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, 37077 Göttingen, Germany
| | - Lynn M Ostersehlt
- Department of NanoBiophotonics, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, 37077 Göttingen, Germany
| | - Elisa D'Este
- Optical Microscopy Facility, Max Planck Institute for Medical Research, Jahnstrasse 29, 69120 Heidelberg, Germany
| | - Stefan W Hell
- Department of Optical Nanoscopy, Max Planck Institute for Medical Research, Jahnstrasse 29, 69120 Heidelberg, Germany.,Department of NanoBiophotonics, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, 37077 Göttingen, Germany
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9
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Zhang Y, Zheng Y, Meana Y, Raymo FM. BODIPYs with Photoactivatable Fluorescence. Chemistry 2021; 27:11257-11267. [PMID: 34062023 DOI: 10.1002/chem.202101628] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Indexed: 12/11/2022]
Abstract
The borondipyrromethene (BODIPY) chromophore is a versatile platform for the construction of photoresponsive dyes with unique properties. Specifically, its covalent connection to a photocleavable group can be exploited to engineer compounds with photoswitchable fluorescence. The resulting photoactivatable fluorophores can increase their emission intensity or shift their emission wavelengths in response to switching. Such changes permit the spatiotemporal control of fluorescence with optical stimulations and the implementation of imaging strategies that would be impossible to replicate with conventional fluorophores. Indeed, BODIPYs with photoactivatable fluorescence enable the selective highlighting of intracellular targets, the nanoscaled visualization of sub-cellular components, the real-time monitoring of dynamic events and the photochemical writing of optical barcodes.
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Affiliation(s)
- Yang Zhang
- Department of Biomedical Engineering, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA
| | - Yeting Zheng
- Laboratory for Molecular Photonics, Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, FL 33146, USA
| | - Yasniel Meana
- Laboratory for Molecular Photonics, Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, FL 33146, USA
| | - Françisco M Raymo
- Laboratory for Molecular Photonics, Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, FL 33146, USA
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10
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Weber M, Khan TA, Patalag LJ, Bossi M, Leutenegger M, Belov VN, Hell SW. Photoactivatable Fluorophore for Stimulated Emission Depletion (STED) Microscopy and Bioconjugation Technique for Hydrophobic Labels. Chemistry 2021; 27:451-458. [PMID: 33095954 PMCID: PMC7839434 DOI: 10.1002/chem.202004645] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Indexed: 02/01/2023]
Abstract
The use of photoactivatable dyes in STED microscopy has so far been limited by two-photon activation through the STED beam and by the fact that photoactivatable dyes are poorly solvable in water. Herein, we report ONB-2SiR, a fluorophore that can be both photoactivated in the UV and specifically de-excited by STED at 775 nm. Likewise, we introduce a conjugation and purification protocol to effectively label primary and secondary antibodies with moderately water-soluble dyes. Greatly reducing dye aggregation, our technique provides a defined and tunable degree of labeling, and improves the imaging performance of dye conjugates in general.
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Affiliation(s)
- Michael Weber
- Department of NanoBiophotonicsMax Planck Institute for Biophysical ChemistryAm Faßberg 1137077GöttingenGermany
| | - Taukeer A. Khan
- Department of NanoBiophotonicsMax Planck Institute for Biophysical ChemistryAm Faßberg 1137077GöttingenGermany
| | - Lukas J. Patalag
- Department of NanoBiophotonicsMax Planck Institute for Biophysical ChemistryAm Faßberg 1137077GöttingenGermany
- present address: Stratingh Institute for ChemistryZernike Institute for Advanced MaterialsUniversity of GroningenNijenborgh 49747AGGroningenThe Netherlands
| | - Mariano Bossi
- Department of Optical NanoscopyMax Planck Institute for Medical ResearchJahnstraße 2969120HeidelbergGermany
| | - Marcel Leutenegger
- Department of NanoBiophotonicsMax Planck Institute for Biophysical ChemistryAm Faßberg 1137077GöttingenGermany
| | - Vladimir N. Belov
- Department of NanoBiophotonicsMax Planck Institute for Biophysical ChemistryAm Faßberg 1137077GöttingenGermany
| | - Stefan W. Hell
- Department of NanoBiophotonicsMax Planck Institute for Biophysical ChemistryAm Faßberg 1137077GöttingenGermany
- Department of Optical NanoscopyMax Planck Institute for Medical ResearchJahnstraße 2969120HeidelbergGermany
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11
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Kolmakov K, Winter FR, Sednev MV, Ghosh S, Borisov SM, Nizovtsev AV. Everlasting rhodamine dyes and true deciding factors in their STED microscopy performance. Photochem Photobiol Sci 2020; 19:1677-1689. [PMID: 33179701 DOI: 10.1039/d0pp00304b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The authors took an independent and closer look at the family of red-emitting rhodamine dyes known for a decade due to their excellent performance in STED microscopy. After the family was further extended, the true grounds of this performance became clear. Small-molecule protective agents and/or auxiliary groups were attached at two different sites of the dye's scaffold. Thus, a rhodamine core, which is already quite photostable as it is, and an intramolecular stabilizer - a 4-nitrobenzyl or a 4-nitrobenzylthio group were combined to give potentially "everlasting dyes". The fluorescence quantum yields (Φf) and the fluorescence lifetimes (τ) of the modified dyes were thoroughly measured with comparison to those of the parent dyes. The correlation of their STED performance with photostability and fluorescence color stability under illumination in water were explored. Unexpectedly, the anaerobic GSDIM (GOC) buffer proved unhelpful with respect to STED performance. It was demonstrated that, even dyes with a Φf of only 14-17% allow STED imaging with a sufficient photon budget and good signal-to-noise ratio. For the dyes with photostabilizing groups (PSG) the Φf values are 4-5 times lower than in the reference dyes, and lifetimes τ are also strongly reduced. Noteworthy are very high fluorescence color stability and constant or even increasing fluorescence signal under photobleaching in bulk aqueous solutions, which suggests a sacrificing role of the 4-nitrobenzyl-containing moieties. Straightforward and improved recipes for "last-minute" modifications and preparations of "self-healing" red-emitting fluorescent tags are described.
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Affiliation(s)
- Kirill Kolmakov
- glyXera GmbH, Brenneckestraße 20 * ZENIT II/Haus 66, D-39120 Magdeburg, Germany.
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12
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Platzer R, Rossboth BK, Schneider MC, Sevcsik E, Baumgart F, Stockinger H, Schütz GJ, Huppa JB, Brameshuber M. Unscrambling fluorophore blinking for comprehensive cluster detection via photoactivated localization microscopy. Nat Commun 2020; 11:4993. [PMID: 33020470 PMCID: PMC7536177 DOI: 10.1038/s41467-020-18726-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2019] [Accepted: 09/10/2020] [Indexed: 12/22/2022] Open
Abstract
Determining nanoscale protein distribution via Photoactivated Localization Microscopy (PALM) mandates precise knowledge of the applied fluorophore's blinking properties to counteract overcounting artifacts that distort the resulting biomolecular distributions. Here, we present a readily applicable methodology to determine, optimize and quantitatively account for the blinking behavior of any PALM-compatible fluorophore. Using a custom-designed platform, we reveal complex blinking of two photoswitchable fluorescence proteins (PS-CFP2 and mEOS3.2) and two photoactivatable organic fluorophores (PA Janelia Fluor 549 and Abberior CAGE 635) with blinking cycles on time scales of several seconds. Incorporating such detailed information in our simulation-based analysis package allows for robust evaluation of molecular clustering based on individually recorded single molecule localization maps.
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Affiliation(s)
- René Platzer
- Institute for Hygiene and Applied Immunology, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | | | | | - Eva Sevcsik
- Institute of Applied Physics, TU Wien, Vienna, Austria
| | | | - Hannes Stockinger
- Institute for Hygiene and Applied Immunology, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | | | - Johannes B Huppa
- Institute for Hygiene and Applied Immunology, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria.
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13
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Giakoumatos EC, Aloi A, Voets IK. Illuminating the Impact of Submicron Particle Size and Surface Chemistry on Interfacial Position and Pickering Emulsion Type. NANO LETTERS 2020; 20:4837-4841. [PMID: 32479735 PMCID: PMC7349595 DOI: 10.1021/acs.nanolett.0c00709] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Revised: 05/29/2020] [Indexed: 06/11/2023]
Abstract
Pickering emulsions are increasingly applied in the production of medicines, cosmetics, and in food technology. To apply Pickering emulsions in a rational manner it is insufficient to examine properties solely on a macroscopic scale, as this does not elucidate heterogeneities in contact angles (θ) of individual particles, which may have a profound impact on stability and microstructure. Here, we apply the super-resolution technique iPAINT to elucidate for the first time the microscopic origins of macroscopically observed emulsion phase inversions induced by a variation in particle size and aqueous phase pH. We find θ of single carboxyl polystyrene submicron particles (CPS) significantly decreases due to increasing aqueous phase pH and particle size, respectively. Our findings confirm that θ of submicron particles are both size- and pH-dependent. Interestingly, for CPS stabilized water-octanol emulsions, this enables tuning of emulsion type from water-in-oil to oil-in-water by adjustments in either particle size or pH.
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Affiliation(s)
- Emma C. Giakoumatos
- Laboratory of Self-Organizing Soft Matter, Laboratory of Physical-Chemistry, Laboratory of Macromolecular
and Organic Chemistry, and Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, Netherlands
| | - Antonio Aloi
- Laboratory of Self-Organizing Soft Matter, Laboratory of Physical-Chemistry, Laboratory of Macromolecular
and Organic Chemistry, and Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, Netherlands
| | - Ilja K. Voets
- Laboratory of Self-Organizing Soft Matter, Laboratory of Physical-Chemistry, Laboratory of Macromolecular
and Organic Chemistry, and Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, Netherlands
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14
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Zhang Y, Raymo FM. Live-Cell Imaging at the Nanoscale with Bioconjugatable and Photoactivatable Fluorophores. Bioconjug Chem 2020; 31:1052-1062. [PMID: 32150390 DOI: 10.1021/acs.bioconjchem.0c00073] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Optical diffraction fundamentally limits the spatial resolution of conventional fluorescence images to length scales that are, at least, 2 orders of magnitude longer than the dimensions of individual molecules. As a result, the development of innovative probes and imaging schemes to overcome diffraction is very much needed to enable the investigation of the fundamental factors regulating cellular functions at the molecular level. In this context, the chemical synthesis of molecular constructs with photoactivatable fluorescence and the ability to label subcellular components of live cells can have transformative implications. Indeed, the fluorescence of the resulting assemblies can be activated with spatiotemporal control, even in the intracellular environment, to permit the sequential localization of individual emissive labels with precision at the nanometer level and the gradual reconstruction of images with subdiffraction resolution. The implementation of these operating principles for subdiffraction imaging, however, is only possible if demanding photochemical and photophysical requirements to enable photoactivation and localization as well as stringent structural requisites to allow the covalent labeling of intracellular targets in live cells are satisfied. Because of these complications, only a few synthetic photoactivatable fluorophores with appropriate performance for live-cell imaging at the nanoscale have been developed so far. Significant synthetic efforts in conjunction with spectroscopic analyses are still very much needed to advance this promising research area further and turn photoactivatable fluorophores into the imaging probes of choice for the investigation of live cells.
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Affiliation(s)
- Yang Zhang
- Laboratory for Molecular Photonics, Department of Chemistry, University of Miami, Coral Gables, Florida 33146-0431, United States
| | - Françisco M Raymo
- Laboratory for Molecular Photonics, Department of Chemistry, University of Miami, Coral Gables, Florida 33146-0431, United States
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15
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Thiel Z, Rivera‐Fuentes P. Single‐Molecule Imaging of Active Mitochondrial Nitroreductases Using a Photo‐Crosslinking Fluorescent Sensor. Angew Chem Int Ed Engl 2019; 58:11474-11478. [DOI: 10.1002/anie.201904700] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 05/20/2019] [Indexed: 12/27/2022]
Affiliation(s)
- Zacharias Thiel
- Laboratorium für Organische ChemieETH Zürich, HCI G329 Vladimir-Prelog-Weg 3 8093 Zürich Switzerland
| | - Pablo Rivera‐Fuentes
- Laboratorium für Organische ChemieETH Zürich, HCI G329 Vladimir-Prelog-Weg 3 8093 Zürich Switzerland
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16
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Thiel Z, Rivera‐Fuentes P. Einzelmolekülfluoreszenzmikroskopie aktiver mitochondrialer Nitroreduktasen unter Verwendung einer vernetzbaren fluoreszierenden Sonde. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201904700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Zacharias Thiel
- Laboratorium für Organische ChemieETH Zürich, HCI G329 Vladimir-Prelog-Weg 3 8093 Zürich Schweiz
| | - Pablo Rivera‐Fuentes
- Laboratorium für Organische ChemieETH Zürich, HCI G329 Vladimir-Prelog-Weg 3 8093 Zürich Schweiz
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17
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Jradi FM, Lavis LD. Chemistry of Photosensitive Fluorophores for Single-Molecule Localization Microscopy. ACS Chem Biol 2019; 14:1077-1090. [PMID: 30997987 DOI: 10.1021/acschembio.9b00197] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Development of single-molecule localization microscopy (SMLM) has sparked a revolution in biological imaging, allowing "super-resolution" fluorescence microscopy below the diffraction limit of light. The past decade has seen an explosion in not only optical hardware for SMLM but also the development or repurposing of fluorescent proteins and small-molecule fluorescent probes for this technique. In this review, written by chemists for chemists, we detail the history of single-molecule localization microscopy and collate the collection of probes with demonstrated utility in SMLM. We hope it will serve as a primer for probe choice in localization microscopy as well as an inspiration for the development of new fluorophores that enable imaging of biological samples with exquisite detail.
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Affiliation(s)
- Fadi M. Jradi
- Janelia Research Campus, Howard Hughes Medical Institute, 19700 Helix Drive, Ashburn, Virginia 20147, United States
| | - Luke D. Lavis
- Janelia Research Campus, Howard Hughes Medical Institute, 19700 Helix Drive, Ashburn, Virginia 20147, United States
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18
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Jang Y, Kim TI, Kim H, Choi Y, Kim Y. Photoactivatable BODIPY Platform: Light-Triggered Anticancer Drug Release and Fluorescence Monitoring. ACS APPLIED BIO MATERIALS 2019; 2:2567-2572. [DOI: 10.1021/acsabm.9b00259] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Yul Jang
- Department of Chemistry and Research Institute of Basic Sciences, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Korea
| | - Tae-Il Kim
- Department of Chemistry and Research Institute of Basic Sciences, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Korea
| | - Hyunjin Kim
- National Cancer Center, 323 Ilsan-ro, Goyang-si, Gyeonggi-do 10408, Korea
| | - Yongdoo Choi
- National Cancer Center, 323 Ilsan-ro, Goyang-si, Gyeonggi-do 10408, Korea
| | - Youngmi Kim
- Department of Chemistry and Research Institute of Basic Sciences, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Korea
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19
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Samanta S, Gong W, Li W, Sharma A, Shim I, Zhang W, Das P, Pan W, Liu L, Yang Z, Qu J, Kim JS. Organic fluorescent probes for stochastic optical reconstruction microscopy (STORM): Recent highlights and future possibilities. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2018.08.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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20
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Mousavi SR, Rashidi Nodeh H, Zamiri Afshari E, Foroumadi A. Graphene Oxide Incorporated Strontium Nanoparticles as a Highly Efficient and Green Acid Catalyst for One-Pot Synthesis of Tetramethyl-9-aryl-hexahydroxanthenes and 13-Aryl-5H-dibenzo[b,i]xanthene-5,7,12,14(13H)-tetraones Under Solvent-Free Conditions. Catal Letters 2019. [DOI: 10.1007/s10562-019-02675-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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21
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Butkevich AN, Bossi ML, Lukinavičius G, Hell SW. Triarylmethane Fluorophores Resistant to Oxidative Photobluing. J Am Chem Soc 2019; 141:981-989. [PMID: 30562459 PMCID: PMC6728092 DOI: 10.1021/jacs.8b11036] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
![]()
Spectral stability
of small-molecule fluorescent probes is required
for correct interpretation and reproducibility of multicolor fluorescence
imaging data, in particular under high (de)excitation light intensities
of super-resolution imaging or in single-molecule applications. We
propose a synthetic approach to a series of spectrally stable rhodamine
fluorophores based on sequential Ru- and Cu-catalyzed transformations,
evaluate their stability against photobleaching and photoconversion
in the context of other fluorophores using chemometric analysis, and
demonstrate chemical reactivity of fluorophore photoproducts. The
substitution patterns providing the photoconversion-resistant triarylmethane
fluorophores have been identified, and the applicability of nonbluing
labels in live-cell STED nanoscopy is demonstrated.
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Affiliation(s)
- Alexey N Butkevich
- 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
| | - Mariano L Bossi
- Department of Optical Nanoscopy , Max Planck Institute for Medical Research , Jahnstrasse 29 , 69120 Heidelberg , Germany
| | - Gražvydas Lukinavičius
- 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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22
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Karam AL, de Los Reyes FL, Ducoste JJ. Development of Photochemical Microsensors for Evaluating Photosynthetic Light Dose Distributions in Microalgal Photobioreactors. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:12538-12545. [PMID: 30259741 DOI: 10.1021/acs.est.8b02056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
We describe the development and testing of a Lagrangian method for quantifying light dose distributions within photobioreactors (PBRs) using novel photochemical microsensors. These microsensors were developed using 3-μm microspheres coated with a fluorescent dye that responds to wavelengths of visible light that are critical for photosynthesis. The dose-response kinetics of the microsensors was established by varying known doses of collimated light and quantifying the fluorescence responses of individual particles using flow cytometry. A deconvolution scheme was used to determine the light dose distribution from the fluorescence distribution of the microsensors. As proof-of-concept, the microsensors were used to quantify the photosynthetic light dose distributions within a gently mixed, 3 L flat-plate, batch PBR with and without algae and no gas bubbling and without algae but with gas bubbling. The microsensor approach not only provided information about the photosynthetic light distributions within the PBRs but also predicted the average light attenuation due to algal cells within 1% of estimates made with an in situ light sensor. The results showed that bubbles, under the conditions tested, increased the overall light irradiance by 18%; a result not captured by static measurements. The Lagrangian microsensors provide a novel approach for quantifying light within a photobioreactor.
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Affiliation(s)
- Amanda L Karam
- Department of Civil, Construction, and Environmental Engineering , North Carolina State University , Raleigh , North Carolina 27695 , United States
| | - Francis L de Los Reyes
- Department of Civil, Construction, and Environmental Engineering , North Carolina State University , Raleigh , North Carolina 27695 , United States
| | - Joel J Ducoste
- Department of Civil, Construction, and Environmental Engineering , North Carolina State University , Raleigh , North Carolina 27695 , United States
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23
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Abstract
The past decade has witnessed an explosion in the use of super-resolution fluorescence microscopy methods in biology and other fields. Single-molecule localization microscopy (SMLM) is one of the most widespread of these methods and owes its success in large part to the ability to control the on-off state of fluorophores through various chemical, photochemical, or binding-unbinding mechanisms. We provide here a comprehensive overview of switchable fluorophores in SMLM including a detailed review of all major classes of SMLM fluorophores, and we also address strategies for labeling specimens, considerations for multichannel and live-cell imaging, potential pitfalls, and areas for future development.
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Affiliation(s)
- Honglin Li
- Department of Chemistry, University of Washington, Seattle, Washington, USA, 98195
| | - Joshua C. Vaughan
- Department of Chemistry, University of Washington, Seattle, Washington, USA, 98195
- Department of Physiology and Biophysics, University of Washington, Seattle, Washington, USA, 98195
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24
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Wijesooriya CS, Peterson JA, Shrestha P, Gehrmann EJ, Winter AH, Smith EA. A Photoactivatable BODIPY Probe for Localization‐Based Super‐Resolution Cellular Imaging. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201805827] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
| | | | | | | | | | - Emily A. Smith
- Department of Chemistry Iowa State University Ames IA 50011 USA
- The Ames Laboratory US Department of Energy Ames IA 50011 USA
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25
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Wijesooriya CS, Peterson JA, Shrestha P, Gehrmann EJ, Winter AH, Smith EA. A Photoactivatable BODIPY Probe for Localization-Based Super-Resolution Cellular Imaging. Angew Chem Int Ed Engl 2018; 57:12685-12689. [PMID: 30247796 DOI: 10.1002/anie.201805827] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2018] [Revised: 07/10/2018] [Indexed: 11/07/2022]
Abstract
The synthesis and application of a photoactivatable boron-alkylated BODIPY probe for localization-based super-resolution microscopy is reported. Photoactivation and excitation of the probe is achieved by a previously unknown boron-photodealkylation reaction with a single low-power visible laser and without requiring the addition of reducing agents or oxygen scavengers in the imaging buffer. These features lead to a versatile probe for localization-based microscopy of biological systems. The probe can be easily linked to nucleophile-containing molecules to target specific cellular organelles. By attaching paclitaxel to the photoactivatable BODIPY, in vitro and in vivo super-resolution imaging of microtubules is demonstrated. This is the first example of single-molecule localization-based super-resolution microscopy using a visible-light-activated BODIPY compound as a fluorescent probe.
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Affiliation(s)
| | - Julie A Peterson
- Department of Chemistry, Iowa State University, Ames, IA, 50011, USA
| | - Pradeep Shrestha
- Department of Chemistry, Iowa State University, Ames, IA, 50011, USA
| | | | - Arthur H Winter
- Department of Chemistry, Iowa State University, Ames, IA, 50011, USA
| | - Emily A Smith
- Department of Chemistry, Iowa State University, Ames, IA, 50011, USA.,The Ames Laboratory, US Department of Energy, Ames, IA, 50011, USA
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26
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Roubinet B, Bischoff M, Nizamov S, Yan S, Geisler C, Stoldt S, Mitronova GY, Belov VN, Bossi ML, Hell SW. Photoactivatable Rhodamine Spiroamides and Diazoketones Decorated with “Universal Hydrophilizer” or Hydroxyl Groups. J Org Chem 2018; 83:6466-6476. [DOI: 10.1021/acs.joc.8b00756] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Benôit Roubinet
- Department of Nanobiophotonics, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, 37077 Göttingen, Germany
| | - Matthias Bischoff
- Department of Nanobiophotonics, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, 37077 Göttingen, Germany
| | - Shamil Nizamov
- Abberior GmbH, Hans-Adolf-Krebs-Weg 1, 37077 Göttingen, Germany
| | - Sergey Yan
- Department of Nanobiophotonics, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, 37077 Göttingen, Germany
| | - Claudia Geisler
- Department of Optical Nanoscopy, Laser-Laboratorium Göttingen e.V., 37077 Göttingen, Germany
| | - Stefan Stoldt
- Department of Nanobiophotonics, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, 37077 Göttingen, Germany
| | - Gyuzel Y. Mitronova
- Department of Nanobiophotonics, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, 37077 Göttingen, Germany
| | - Vladimir N. Belov
- Department of Nanobiophotonics, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, 37077 Göttingen, Germany
| | - Mariano L. Bossi
- 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
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27
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He H, Ye Z, Zheng Y, Xu X, Guo C, Xiao Y, Yang W, Qian X, Yang Y. Super-resolution imaging of lysosomes with a nitroso-caged rhodamine. Chem Commun (Camb) 2018; 54:2842-2845. [PMID: 29393323 DOI: 10.1039/c7cc08886h] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Caged-fluorophores are potentially suitable for photo-activated localization microscopy (PALM) for super-resolution imaging. N-Nitroso is a simple and robust photo-cage with biocompatible nitric oxide as the only byproduct upon photolysis. We herein reported a novel PALM probe (NOR535) for super-resolution imaging of lysosomes with high localization precision.
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Affiliation(s)
- Haihong He
- State Key Laboratory of Bioreactor Engineering, Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai, 200237, China.
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28
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29
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Grygorenko OO, Biitseva AV, Zhersh S. Amino sulfonic acids, peptidosulfonamides and other related compounds. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.01.033] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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30
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Grimm J, Brown TA, Tkachuk AN, Lavis LD. General Synthetic Method for Si-Fluoresceins and Si-Rhodamines. ACS CENTRAL SCIENCE 2017; 3:975-985. [PMID: 28979939 PMCID: PMC5620978 DOI: 10.1021/acscentsci.7b00247] [Citation(s) in RCA: 110] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Indexed: 05/24/2023]
Abstract
The century-old fluoresceins and rhodamines persist as flexible scaffolds for fluorescent and fluorogenic compounds. Extensive exploration of these xanthene dyes has yielded general structure-activity relationships where the development of new probes is limited only by imagination and organic chemistry. In particular, replacement of the xanthene oxygen with silicon has resulted in new red-shifted Si-fluoresceins and Si-rhodamines, whose high brightness and photostability enable advanced imaging experiments. Nevertheless, efforts to tune the chemical and spectral properties of these dyes have been hindered by difficult synthetic routes. Here, we report a general strategy for the efficient preparation of Si-fluoresceins and Si-rhodamines from readily synthesized bis(2-bromophenyl)silane intermediates. These dibromides undergo metal/bromide exchange to give bis-aryllithium or bis(aryl Grignard) intermediates, which can then add to anhydride or ester electrophiles to afford a variety of Si-xanthenes. This strategy enabled efficient (3-5 step) syntheses of known and novel Si-fluoresceins, Si-rhodamines, and related dye structures. In particular, we discovered that previously inaccessible tetrafluorination of the bottom aryl ring of the Si-rhodamines resulted in dyes with improved visible absorbance in solution, and a convenient derivatization through fluoride-thiol substitution. This modular, divergent synthetic method will expand the palette of accessible xanthenoid dyes across the visible spectrum, thereby pushing further the frontiers of biological imaging.
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31
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Halabi EA, Thiel Z, Trapp N, Pinotsi D, Rivera-Fuentes P. A Photoactivatable Probe for Super-Resolution Imaging of Enzymatic Activity in Live Cells. J Am Chem Soc 2017; 139:13200-13207. [DOI: 10.1021/jacs.7b07748] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Elias A. Halabi
- Laboratory
of Organic Chemistry, ETH Zurich, Vladimir-Prelog-Weg 3, CH-8093 Zurich, Switzerland
| | - Zacharias Thiel
- Laboratory
of Organic Chemistry, ETH Zurich, Vladimir-Prelog-Weg 3, CH-8093 Zurich, Switzerland
| | - Nils Trapp
- Laboratory
of Organic Chemistry, ETH Zurich, Vladimir-Prelog-Weg 3, CH-8093 Zurich, Switzerland
| | - Dorothea Pinotsi
- Scientific
Center for Optical and Electron Microscopy, ETH Zurich, Otto-Stern-Weg
3, CH-8093 Zurich, Switzerland
| | - Pablo Rivera-Fuentes
- Laboratory
of Organic Chemistry, ETH Zurich, Vladimir-Prelog-Weg 3, CH-8093 Zurich, Switzerland
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32
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Jazi AA, Ploetz E, Arizki M, Dhandayuthapani B, Waclawska I, Krämer R, Ziegler C, Cordes T. Caging and Photoactivation in Single-Molecule Förster Resonance Energy Transfer Experiments. Biochemistry 2017; 56:2031-2041. [PMID: 28362086 PMCID: PMC5390306 DOI: 10.1021/acs.biochem.6b00916] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
![]()
Caged
organic fluorophores are established tools for localization-based
super-resolution imaging. Their use relies on reversible deactivation
of standard organic fluorophores by chemical reduction or commercially
available caged dyes with ON switching of the fluorescent signal by
ultraviolet (UV) light. Here, we establish caging of cyanine fluorophores
and caged rhodamine dyes, i.e., chemical deactivation of fluorescence,
for single-molecule Förster resonance energy transfer (smFRET)
experiments with freely diffusing molecules. They allow temporal separation
and sorting of multiple intramolecular donor–acceptor pairs
during solution-based smFRET. We use this “caged FRET”
methodology for the study of complex biochemical species such as multisubunit
proteins or nucleic acids containing more than two fluorescent labels.
Proof-of-principle experiments and a characterization of the uncaging
process in the confocal volume are presented. These reveal that chemical
caging and UV reactivation allow temporal uncoupling of convoluted
fluorescence signals from, e.g., multiple spectrally similar donor
or acceptor molecules on nucleic acids. We also use caging without
UV reactivation to remove unwanted overlabeled species in experiments
with the homotrimeric membrane transporter BetP. We finally outline
further possible applications of the caged FRET methodology, such
as the study of weak biochemical interactions, which are otherwise
impossible with diffusion-based smFRET techniques because of the required
low concentrations of fluorescently labeled biomolecules.
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Affiliation(s)
- Atieh Aminian Jazi
- Molecular Microscopy Research Group, Zernike Institute for Advanced Materials, University of Groningen , Nijenborgh 4, 9747 AG Groningen, The Netherlands.,Institute of Biophysics and Biophysical Chemistry, Universität Regensburg , 95053 Regensburg, Germany
| | - Evelyn Ploetz
- Molecular Microscopy Research Group, Zernike Institute for Advanced Materials, University of Groningen , Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Muhamad Arizki
- Molecular Microscopy Research Group, Zernike Institute for Advanced Materials, University of Groningen , Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | | | - Izabela Waclawska
- Institute of Biophysics and Biophysical Chemistry, Universität Regensburg , 95053 Regensburg, Germany
| | - Reinhard Krämer
- Institute for Biochemistry, Universität Köln , 50674 Köln, Germany
| | - Christine Ziegler
- Institute of Biophysics and Biophysical Chemistry, Universität Regensburg , 95053 Regensburg, Germany
| | - Thorben Cordes
- Molecular Microscopy Research Group, Zernike Institute for Advanced Materials, University of Groningen , Nijenborgh 4, 9747 AG Groningen, The Netherlands
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33
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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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34
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Aloi A, Guibert C, Olijve LL, Voets IK. Morphological evolution of complex coacervate core micelles revealed by iPAINT microscopy. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.08.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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35
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Bright photoactivatable fluorophores for single-molecule imaging. Nat Methods 2016; 13:985-988. [PMID: 27776112 DOI: 10.1038/nmeth.4034] [Citation(s) in RCA: 248] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Accepted: 09/20/2016] [Indexed: 12/23/2022]
Abstract
Small-molecule fluorophores are important tools for advanced imaging experiments. We previously reported a general method to improve small, cell-permeable fluorophores which resulted in the azetidine-containing 'Janelia Fluor' (JF) dyes. Here, we refine and extend the utility of these dyes by synthesizing photoactivatable derivatives that are compatible with live-cell labeling strategies. Once activated, these derived compounds retain the superior brightness and photostability of the JF dyes, enabling improved single-particle tracking and facile localization microscopy experiments.
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36
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Aloi A, Vilanova N, Albertazzi L, Voets IK. iPAINT: a general approach tailored to image the topology of interfaces with nanometer resolution. NANOSCALE 2016; 8:8712-6. [PMID: 27055489 PMCID: PMC5050559 DOI: 10.1039/c6nr00445h] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Accepted: 03/09/2016] [Indexed: 05/24/2023]
Abstract
Understanding interfacial phenomena in soft materials such as wetting, colloidal stability, coalescence, and friction warrants non-invasive imaging with nanometer resolution. Super-resolution microscopy has emerged as an attractive method to visualize nanostructures labeled covalently with fluorescent tags, but this is not amenable to all interfaces. Inspired by PAINT we developed a simple and general strategy to overcome this limitation, which we coin 'iPAINT: interface Point Accumulation for Imaging in Nanoscale Topography'. It enables three-dimensional, sub-diffraction imaging of interfaces irrespective of their nature via reversible adsorption of polymer chains end-functionalized with photo-activatable moieties. We visualized model dispersions, emulsions, and foams with ∼20 nm and ∼3° accuracy demonstrating the general applicability of iPAINT to study solid/liquid, liquid/liquid and liquid/air interfaces. iPAINT thus broadens the scope of super-resolution microscopy paving the way for non-invasive, high-resolution imaging of complex soft materials.
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Affiliation(s)
- A. Aloi
- Institute for Complex Molecular Systems , Eindhoven University of Technology , Post Office Box 513 , 5600 MD Eindhoven , The Netherlands .
- Laboratory of Macromolecular and Organic Chemistry , Department of Chemical Engineering and Chemistry , Eindhoven University of Technology , Post Office Box 513 , 5600 MD Eindhoven , The Netherlands
| | - N. Vilanova
- Institute for Complex Molecular Systems , Eindhoven University of Technology , Post Office Box 513 , 5600 MD Eindhoven , The Netherlands .
- Laboratory of Macromolecular and Organic Chemistry , Department of Chemical Engineering and Chemistry , Eindhoven University of Technology , Post Office Box 513 , 5600 MD Eindhoven , The Netherlands
| | - L. Albertazzi
- Institute for Complex Molecular Systems , Eindhoven University of Technology , Post Office Box 513 , 5600 MD Eindhoven , The Netherlands .
| | - I. K. Voets
- Institute for Complex Molecular Systems , Eindhoven University of Technology , Post Office Box 513 , 5600 MD Eindhoven , The Netherlands .
- Laboratory of Macromolecular and Organic Chemistry , Department of Chemical Engineering and Chemistry , Eindhoven University of Technology , Post Office Box 513 , 5600 MD Eindhoven , The Netherlands
- Laboratory of Physical Chemistry , Department of Chemical Engineering and Chemistry , Eindhoven University of Technology , Post Office Box 513 , 5600 MD Eindhoven , The Netherlands .
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37
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Aloi A, Vargas Jentzsch A, Vilanova N, Albertazzi L, Meijer EW, Voets IK. Imaging Nanostructures by Single-Molecule Localization Microscopy in Organic Solvents. J Am Chem Soc 2016; 138:2953-6. [PMID: 26885701 DOI: 10.1021/jacs.5b13585] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The introduction of super-resolution fluorescence microscopy (SRM) opened an unprecedented vista into nanoscopic length scales, unveiling a new degree of complexity in biological systems in aqueous environments. Regrettably, supramolecular chemistry and material science benefited far less from these recent developments. Here we expand the scope of SRM to photoactivated localization microscopy (PALM) imaging of synthetic nanostructures that are highly dynamic in organic solvents. Furthermore, we characterize the photophysical properties of commonly used photoactivatable dyes in a wide range of solvents, which is made possible by the addition of a tiny amount of an alcohol. As proof-of-principle, we use PALM to image silica beads with radii close to Abbe's diffraction limit. Individual nanoparticles are readily identified and reliably sized in multicolor mixtures of large and small beads. We further use SRM to visualize nm-thin yet μm-long dynamic, supramolecular polymers, which are among the most challenging molecular systems to image.
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Affiliation(s)
- Antonio Aloi
- Department of Chemical Engineering and Chemistry, Institute for Complex Molecular Systems, Eindhoven University of Technology , P.O. Box 513, Eindhoven 5600 MD, The Netherlands
| | - Andreas Vargas Jentzsch
- Department of Chemical Engineering and Chemistry, Institute for Complex Molecular Systems, Eindhoven University of Technology , P.O. Box 513, Eindhoven 5600 MD, The Netherlands
| | - Neus Vilanova
- Department of Chemical Engineering and Chemistry, Institute for Complex Molecular Systems, Eindhoven University of Technology , P.O. Box 513, Eindhoven 5600 MD, The Netherlands
| | - Lorenzo Albertazzi
- Nanoscopy for Nanomedicine Group, Institute for Bioengineering of Catalonia (IBEC) , C. Baldiri Reixac 15-21, Barcelona 08028, Spain
| | - E W Meijer
- Department of Chemical Engineering and Chemistry, Institute for Complex Molecular Systems, Eindhoven University of Technology , P.O. Box 513, Eindhoven 5600 MD, The Netherlands
| | - Ilja K Voets
- Department of Chemical Engineering and Chemistry, Institute for Complex Molecular Systems, Eindhoven University of Technology , P.O. Box 513, Eindhoven 5600 MD, The Netherlands
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38
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Grimm JB, Klein T, Kopek BG, Shtengel G, Hess HF, Sauer M, Lavis LD. Synthesis of a Far-Red Photoactivatable Silicon-Containing Rhodamine for Super-Resolution Microscopy. Angew Chem Int Ed Engl 2016; 55:1723-7. [PMID: 26661345 PMCID: PMC4736676 DOI: 10.1002/anie.201509649] [Citation(s) in RCA: 115] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Indexed: 11/20/2022]
Abstract
The rhodamine system is a flexible framework for building small-molecule fluorescent probes. Changing N-substitution patterns and replacing the xanthene oxygen with a dimethylsilicon moiety can shift the absorption and fluorescence emission maxima of rhodamine dyes to longer wavelengths. Acylation of the rhodamine nitrogen atoms forces the molecule to adopt a nonfluorescent lactone form, providing a convenient method to make fluorogenic compounds. Herein, we take advantage of all of these structural manipulations and describe a novel photoactivatable fluorophore based on a Si-containing analogue of Q-rhodamine. This probe is the first example of a "caged" Si-rhodamine, exhibits higher photon counts compared to established localization microscopy dyes, and is sufficiently red-shifted to allow multicolor imaging. The dye is a useful label for super-resolution imaging and constitutes a new scaffold for far-red fluorogenic molecules.
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Affiliation(s)
- Jonathan B Grimm
- Janelia Research Campus, Howard Hughes Medical Institute, 19700 Helix Drive, Ashburn, VA, 20147, USA
| | - Teresa Klein
- Department of Biotechnology and Biophysics, Julius Maximilian University Wuerzburg, Am Hubland, 97074, Wuerzburg, Germany
| | - Benjamin G Kopek
- Janelia Research Campus, Howard Hughes Medical Institute, 19700 Helix Drive, Ashburn, VA, 20147, USA
- Hope College, Department of Biology, 35 E. 12th Street, Holland, MI, 49423, USA
| | - Gleb Shtengel
- Janelia Research Campus, Howard Hughes Medical Institute, 19700 Helix Drive, Ashburn, VA, 20147, USA
| | - Harald F Hess
- Janelia Research Campus, Howard Hughes Medical Institute, 19700 Helix Drive, Ashburn, VA, 20147, USA
| | - Markus Sauer
- Department of Biotechnology and Biophysics, Julius Maximilian University Wuerzburg, Am Hubland, 97074, Wuerzburg, Germany
| | - Luke D Lavis
- Janelia Research Campus, Howard Hughes Medical Institute, 19700 Helix Drive, Ashburn, VA, 20147, USA.
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39
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Grimm JB, Klein T, Kopek BG, Shtengel G, Hess HF, Sauer M, Lavis LD. Synthesis of a Far-Red Photoactivatable Silicon-Containing Rhodamine for Super-Resolution Microscopy. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201509649] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jonathan B. Grimm
- Janelia Research Campus; Howard Hughes Medical Institute; 19700 Helix Drive Ashburn VA 20147 USA
| | - Teresa Klein
- Department of Biotechnology and Biophysics; Julius Maximilian University Wuerzburg; Am Hubland 97074 Wuerzburg Germany
| | - Benjamin G. Kopek
- Janelia Research Campus; Howard Hughes Medical Institute; 19700 Helix Drive Ashburn VA 20147 USA
- Hope College; Department of Biology; 35 E. 12th Street Holland MI 49423 USA
| | - Gleb Shtengel
- Janelia Research Campus; Howard Hughes Medical Institute; 19700 Helix Drive Ashburn VA 20147 USA
| | - Harald F. Hess
- Janelia Research Campus; Howard Hughes Medical Institute; 19700 Helix Drive Ashburn VA 20147 USA
| | - Markus Sauer
- Department of Biotechnology and Biophysics; Julius Maximilian University Wuerzburg; Am Hubland 97074 Wuerzburg Germany
| | - Luke D. Lavis
- Janelia Research Campus; Howard Hughes Medical Institute; 19700 Helix Drive Ashburn VA 20147 USA
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40
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Gutowski L, Olsson O, Lange J, Kümmerer K. Photolytic transformation products and biological stability of the hydrological tracer Uranine. THE SCIENCE OF THE TOTAL ENVIRONMENT 2015; 533:446-453. [PMID: 26179782 DOI: 10.1016/j.scitotenv.2015.07.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2015] [Revised: 06/30/2015] [Accepted: 07/01/2015] [Indexed: 06/04/2023]
Abstract
Among many fluorescence tracers, Uranine (sodium fluorescein, UR) has most widely been used in hydrological research. Extensive use of UR for tracing experiments or commercial use might cause a potential risk of long-term environmental contamination. As any organic substance released to the environment, also UR is subjected to chemical and physical reactions that can be chemical, biological and photolysis processes. These processes transform the parent compound (PC) and have not been extensively investigated for UR. This study applies two OECDs (301 D and 301 F) tests and a screening water sediment test (WST) to investigate the biodegradability of the PC. Photolysis in water was explored by Xe lamp irradiation. Subsequently, the biodegradability of the photolysis mixtures was examined. The primary elimination of UR was monitored and structures of its transformation products (TPs) were elucidated by HPLC-FLD-MS/MS. UR was found not readily biodegradable, although small degradation rates could be observed in the OECD 301 D and WST. HPLC-FLD analysis showed high primary elimination of the tracer during photolysis. However, the low degree of mineralization found indicates that the UR was not fully degraded, instead transformed to TPs. A total of 5 photo-TPs were identified. According to MS/MS data, chemical structures could be proposed for all identified photo-TPs. Likewise the parent compound it was demonstrated that photo-TPs were largely recalcitrant to microbial degradation. Although we did not find indications for toxicity, target-oriented studies on the environmental impact of these photo-TPs are warranted. Results obtained in this study show that deeper investigations are necessary to fully understand fate and risk connected to the use of UR.
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Affiliation(s)
- Lukasz Gutowski
- Sustainable Chemistry and Material Resources, Institute of Sustainable and Environmental Chemistry, Leuphana University Lüneburg, C13, DE-21335 Lüneburg, Germany.
| | - Oliver Olsson
- Sustainable Chemistry and Material Resources, Institute of Sustainable and Environmental Chemistry, Leuphana University Lüneburg, C13, DE-21335 Lüneburg, Germany.
| | - Jens Lange
- Sustainable Chemistry and Material Resources, Institute of Sustainable and Environmental Chemistry, Leuphana University Lüneburg, C13, DE-21335 Lüneburg, Germany.
| | - Klaus Kümmerer
- Sustainable Chemistry and Material Resources, Institute of Sustainable and Environmental Chemistry, Leuphana University Lüneburg, C13, DE-21335 Lüneburg, Germany.
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41
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Boott CE, Laine RF, Mahou P, Finnegan JR, Leitao EM, Webb SED, Kaminski CF, Manners I. In Situ Visualization of Block Copolymer Self-Assembly in Organic Media by Super-Resolution Fluorescence Microscopy. Chemistry 2015; 21:18539-42. [PMID: 26477697 PMCID: PMC4736450 DOI: 10.1002/chem.201504100] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Indexed: 12/12/2022]
Abstract
Analytical methods that enable visualization of nanomaterials derived from solution self‐assembly processes in organic solvents are highly desirable. Herein, we demonstrate the use of stimulated emission depletion microscopy (STED) and single molecule localization microscopy (SMLM) to map living crystallization‐driven block copolymer (BCP) self‐assembly in organic media at the sub‐diffraction scale. Four different dyes were successfully used for single‐colour super‐resolution imaging of the BCP nanostructures allowing micelle length distributions to be determined in situ. Dual‐colour SMLM imaging was used to measure and compare the rate of addition of red fluorescent BCP to the termini of green fluorescent seed micelles to generate block comicelles. Although well‐established for aqueous systems, the results highlight the potential of super‐resolution microscopy techniques for the interrogation of self‐assembly processes in organic media.
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Affiliation(s)
| | - Romain F Laine
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, CB2 3RA (UK)
| | - Pierre Mahou
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, CB2 3RA (UK)
| | - John R Finnegan
- School of Chemistry, University of Bristol, Bristol, BS8 1TS (UK)
| | - Erin M Leitao
- School of Chemistry, University of Bristol, Bristol, BS8 1TS (UK)
| | - Stephen E D Webb
- Central Laser Facility, Science and Technology Facilities Council, Research Complex at Harwell, Rutherford Appleton Laboratory, Didcot, OX11 0QX (UK).
| | - Clemens F Kaminski
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, CB2 3RA (UK).
| | - Ian Manners
- School of Chemistry, University of Bristol, Bristol, BS8 1TS (UK).
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42
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Mudd G, Pi IP, Fethers N, Dodd PG, Barbeau OR, Auer M. A general synthetic route to isomerically pure functionalized rhodamine dyes. Methods Appl Fluoresc 2015; 3:045002. [DOI: 10.1088/2050-6120/3/4/045002] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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43
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Choline chloride and itaconic acid-based deep eutectic solvent as an efficient and reusable medium for the preparation of 13-aryl-5H-dibenzo[b,i]xanthene-5,7,12,14(13H)-tetraones. MONATSHEFTE FUR CHEMIE 2015. [DOI: 10.1007/s00706-015-1571-z] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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44
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Kolmakov K, Hebisch E, Wolfram T, Nordwig LA, Wurm CA, Ta H, Westphal V, Belov VN, Hell SW. Far-Red Emitting Fluorescent Dyes for Optical Nanoscopy: Fluorinated Silicon-Rhodamines (SiRF Dyes) and Phosphorylated Oxazines. Chemistry 2015; 21:13344-56. [DOI: 10.1002/chem.201501394] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2015] [Revised: 06/16/2015] [Indexed: 12/30/2022]
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45
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Uno SN, Tiwari DK, Kamiya M, Arai Y, Nagai T, Urano Y. A guide to use photocontrollable fluorescent proteins and synthetic smart fluorophores for nanoscopy. Microscopy (Oxf) 2015; 64:263-77. [PMID: 26152215 DOI: 10.1093/jmicro/dfv037] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2015] [Accepted: 06/12/2015] [Indexed: 12/28/2022] Open
Abstract
Recent advances in nanoscopy, which breaks the diffraction barrier and can visualize structures smaller than the diffraction limit in cells, have encouraged biologists to investigate cellular processes at molecular resolution. Since nanoscopy depends not only on special optics but also on 'smart' photophysical properties of photocontrollable fluorescent probes, including photoactivatability, photoswitchability and repeated blinking, it is important for biologists to understand the advantages and disadvantages of fluorescent probes and to choose appropriate ones for their specific requirements. Here, we summarize the characteristics of currently available fluorescent probes based on both proteins and synthetic compounds applicable to nanoscopy and provide a guideline for selecting optimal probes for specific applications.
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Affiliation(s)
- Shin-Nosuke Uno
- Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Dhermendra K Tiwari
- The Institute of Scientific and Industrial Research, Osaka University, Mihogaoka 8-1, Ibaraki, Osaka 567-0047, Japan
| | - Mako Kamiya
- Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan PRESTO, Japan Science and Technology Agency, Saitama, Japan
| | - Yoshiyuki Arai
- The Institute of Scientific and Industrial Research, Osaka University, Mihogaoka 8-1, Ibaraki, Osaka 567-0047, Japan
| | - Takeharu Nagai
- The Institute of Scientific and Industrial Research, Osaka University, Mihogaoka 8-1, Ibaraki, Osaka 567-0047, Japan
| | - Yasuteru Urano
- Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
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46
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Preise der Deutschen Bunsen-Gesellschaft: S. Riniker, C. Bräuchle, H.-J. Freund und S. W. Hell / John Stauffer Lectureship: F. Diederich. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201504944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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47
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Deutsche Bunsen-Gesellschaft Awards: S. Riniker, C. Bräuchle, H.-J. Freund, and S. W. Hell / John Stauffer Lectureship: F. Diederich. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/anie.201504944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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48
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Friedrich F, Klehs K, Fichte MAH, Junek S, Heilemann M, Heckel A. A two-photon activatable amino acid linker for the induction of fluorescence. Chem Commun (Camb) 2015; 51:15382-5. [DOI: 10.1039/c5cc05700k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first photolabile quencher for ATTO565 is presented and the application of the new construct in super-resolution microscopy is demonstrated.
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Affiliation(s)
- Felix Friedrich
- Goethe University Frankfurt
- Institute for Organic Chemistry and Chemical Biology
- 60438 Frankfurt
- Germany
| | - Kathrin Klehs
- Goethe University Frankfurt
- Institute for Physical and Theoretical Chemistry
- 60438 Frankfurt
- Germany
| | - Manuela A. H. Fichte
- Goethe University Frankfurt
- Institute for Organic Chemistry and Chemical Biology
- 60438 Frankfurt
- Germany
| | - Stephan Junek
- Imaging facility
- Max Planck Institute for Brain Research
- 60438 Frankfurt am Main
- Germany
| | - Mike Heilemann
- Goethe University Frankfurt
- Institute for Physical and Theoretical Chemistry
- 60438 Frankfurt
- Germany
| | - Alexander Heckel
- Goethe University Frankfurt
- Institute for Organic Chemistry and Chemical Biology
- 60438 Frankfurt
- Germany
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49
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50
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Tárnok A. The year of light for enlightening photonics and cytometry- start of new year's note. Cytometry A 2014; 87:1-2. [DOI: 10.1002/cyto.a.22606] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Accepted: 12/01/2014] [Indexed: 02/06/2023]
Affiliation(s)
- Attila Tárnok
- Department of Pediatric Cardiology; Heart Centre Leipzig, University of Leipzig; Leipzig Germany
- Translational Centre for Regenerative Medicine (TRM), University of Leipzig; Leipzig Germany
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