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Qi H, Lian Z, Fei D, Chen Z, Hu Z. Manipulation of matter with shaped-pulse light field and its applications. ADVANCES IN PHYSICS: X 2021. [DOI: 10.1080/23746149.2021.1949390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Affiliation(s)
- Hongxia Qi
- Institute of Atomic and Molecular Physics, Jilin University, Changchun, China
- Advanced Light Field and Modern Medical Treatment Science and Technology Innovation Center of Jilin Province, Jilin University, Changchun, China
| | - Zhenzhong Lian
- Institute of Atomic and Molecular Physics, Jilin University, Changchun, China
| | - Dehou Fei
- Institute of Atomic and Molecular Physics, Jilin University, Changchun, China
| | - Zhou Chen
- Institute of Atomic and Molecular Physics, Jilin University, Changchun, China
- Advanced Light Field and Modern Medical Treatment Science and Technology Innovation Center of Jilin Province, Jilin University, Changchun, China
| | - Zhan Hu
- Advanced Light Field and Modern Medical Treatment Science and Technology Innovation Center of Jilin Province, Jilin University, Changchun, China
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Lavigne C, Brumer P. Pulsed two-photon coherent control of channelrhodopsin-2 photocurrent in live brain cells. J Chem Phys 2020; 153:034303. [PMID: 32716190 DOI: 10.1063/5.0012642] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Channelrhodopsin-2 (ChR2) is an ion channel activated by the absorption of light. A recent experiment demonstrated that the current emanating from neurons in live brain cells expressing ChR2 can be controlled using two-photon phase control. Here, we propose an experimentally testable coherent control mechanism for this phenomenon. Significantly, we describe how femtosecond, quantum coherent processes arising from weak-field ultrafast excitation are responsible for the reported control of the millisecond classical dynamics of the neuronal current.
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Affiliation(s)
- Cyrille Lavigne
- Chemical Physics Theory Group, Department of Chemistry, and Center for Quantum Information and Quantum Control, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Paul Brumer
- Chemical Physics Theory Group, Department of Chemistry, and Center for Quantum Information and Quantum Control, University of Toronto, Toronto, Ontario M5S 3H6, Canada
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Flynn DC, Bhagwat AR, Brenner MH, Núñez MF, Mork BE, Cai D, Swanson JA, Ogilvie JP. Pulse-shaping based two-photon FRET stoichiometry. OPTICS EXPRESS 2015; 23:3353-72. [PMID: 25836193 PMCID: PMC4394757 DOI: 10.1364/oe.23.003353] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2014] [Revised: 01/09/2015] [Accepted: 01/13/2015] [Indexed: 06/04/2023]
Abstract
Förster Resonance Energy Transfer (FRET) based measurements that calculate the stoichiometry of intermolecular interactions in living cells have recently been demonstrated, where the technique utilizes selective one-photon excitation of donor and acceptor fluorophores to isolate the pure FRET signal. Here, we present work towards extending this FRET stoichiometry method to employ two-photon excitation using a pulse-shaping methodology. In pulse-shaping, frequency-dependent phases are applied to a broadband femtosecond laser pulse to tailor the two-photon excitation conditions to preferentially excite donor and acceptor fluorophores. We have also generalized the existing stoichiometry theory to account for additional cross-talk terms that are non-vanishing under two-photon excitation conditions. Using the generalized theory we demonstrate two-photon FRET stoichiometry in live COS-7 cells expressing fluorescent proteins mAmetrine as the donor and tdTomato as the acceptor.
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Affiliation(s)
- Daniel C. Flynn
- Macromolecular Science and Engineering, University of Michigan, 2300 Hayward St, Ann Arbor, MI 48109
USA
| | - Amar R. Bhagwat
- Department of Physics, University of Michigan, 450 Church St., Ann Arbor, MI 48109
USA
| | - Meredith H. Brenner
- Applied Physics Program, University of Michigan, 450 Church St., Ann Arbor, MI 48109
USA
| | - Marcos F. Núñez
- Biophysics Program, University of Michigan, 930 N. University Ave., Ann Arbor, MI 48109
USA
| | - Briana E. Mork
- Department of Physics, University of Michigan, 450 Church St., Ann Arbor, MI 48109
USA
| | - Dawen Cai
- Department of Microbiology and Immunology, University of Michigan Medical School, 1150 West Medical Center Drive, Ann Arbor, MI 48109
USA
- Department of Cell and Developmental Biology, University of Michigan Medical School, 109 Zina Pitcher Place, Ann Arbor, MI 48109
USA
| | - Joel A. Swanson
- Department of Microbiology and Immunology, University of Michigan Medical School, 1150 West Medical Center Drive, Ann Arbor, MI 48109
USA
| | - Jennifer P. Ogilvie
- Department of Physics, University of Michigan, 450 Church St., Ann Arbor, MI 48109
USA
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Brenner MH, Cai D, Swanson JA, Ogilvie JP. Two-photon imaging of multiple fluorescent proteins by phase-shaping and linear unmixing with a single broadband laser. OPTICS EXPRESS 2013; 21:17256-64. [PMID: 23938572 PMCID: PMC3724397 DOI: 10.1364/oe.21.017256] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Imaging multiple fluorescent proteins (FPs) by two-photon microscopy has numerous applications for studying biological processes in thick and live samples. Here we demonstrate a setup utilizing a single broadband laser and a phase-only pulse-shaper to achieve imaging of three FPs (mAmetrine, TagRFPt, and mKate2) in live mammalian cells. Phase-shaping to achieve selective excitation of the FPs in combination with post-imaging linear unmixing enables clean separation of the fluorescence signal of each FP. This setup also benefits from low overall cost and simple optical alignment, enabling easy adaptation in a regular biomedical research laboratory.
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Affiliation(s)
- Meredith H. Brenner
- Applied Physics Program, University of Michigan 450 Church St., Ann Arbor MI 48109
USA
- These authors contributed equally to this work
| | - Dawen Cai
- Department of Physics and Biophysics, University of Michigan, 450 Church St, Ann Arbor, MI 48109
USA
- Department of Microbiology and Immunology, University of Michigan Medical School, 1150 West Medical Center Drive, Ann Arbor, MI 48109
USA
- Department of Cell and Developmental Biology, University of Michigan Medical School, 109 Zina Pitcher Place, Ann Arbor, MI 48109
USA
- These authors contributed equally to this work
| | - Joel A. Swanson
- Department of Microbiology and Immunology, University of Michigan Medical School, 1150 West Medical Center Drive, Ann Arbor, MI 48109
USA
| | - Jennifer P. Ogilvie
- Department of Physics and Biophysics, University of Michigan, 450 Church St, Ann Arbor, MI 48109
USA
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Brenner MH, Cai D, Nichols SR, Straight SW, Hoppe AD, Swanson JA, Ogilvie JP. Pulse-shaping multiphoton FRET microscopy. PROCEEDINGS OF SPIE--THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING 2012; 8226:82260R. [PMID: 22737295 PMCID: PMC3380370 DOI: 10.1117/12.909225] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Fluorescence Resonance Energy Transfer (FRET) microscopy is a commonly-used technique to study problems in biophysics that range from uncovering cellular signaling pathways to detecting conformational changes in single biomolecules. Unfortunately, excitation and emission spectral overlap between the fluorophores create challenges in quantitative FRET studies. It has been shown previously that quantitative FRET stoichiometry can be performed by selective excitation of donor and acceptor fluorophores. Extending this approach to two-photon FRET applications is difficult when conventional femtosecond laser sources are used due to their limited bandwidth and slow tuning response time. Extremely broadband titanium:sapphire lasers enable the simultaneous excitation of both donor and acceptor for two-photon FRET, but do so without selectivity. Here we present a novel two-photon FRET microscopy technique that employs pulse-shaping to perform selective excitation of fluorophores in live cells and detect FRET between them. Pulse-shaping via multiphoton intrapulse interference can tailor the excitation pulses to achieve selective excitation. This technique overcomes the limitation of conventional femtosecond lasers to allow rapid switching between selective excitation of the donor and acceptor fluorophores. We apply the method to live cells expressing the fluorescent proteins mCerulean and mCherry, demonstrating selective excitation of fluorophores via pulse-shaping and the detection of two-photon FRET. This work paves the way for two-photon FRET stoichiometry.
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Affiliation(s)
- Meredith H. Brenner
- Applied Physics Program, University of Michigan, 450 Church Street, Ann Arbor, MI, USA 48109
| | - Dawen Cai
- Department of Physics, University of Michigan, 450 Church Street, Ann Arbor, MI, USA 48109
| | - Sarah R. Nichols
- Department of Physics, University of Michigan, 450 Church Street, Ann Arbor, MI, USA 48109
| | - Samuel W. Straight
- Center for Live Cell Imaging, University of Michigan Medical School, 1150 West Medical Center Drive, Ann Arbor, MI, USA 48109
- Department of Microbiology and Immunology, University of Michigan Medical School, 1150 West Medical Center Drive, Ann Arbor, MI, USA 48109
| | - Adam D. Hoppe
- Department of Chemistry and Biochemistry, South Dakota State University, Avera Health Science Center, Box 2202, Brookings, SD, USA 57007
| | - Joel A. Swanson
- Department of Microbiology and Immunology, University of Michigan Medical School, 1150 West Medical Center Drive, Ann Arbor, MI, USA 48109
| | - Jennifer P. Ogilvie
- Department of Physics, University of Michigan, 450 Church Street, Ann Arbor, MI, USA 48109
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Tkaczyk ER, Tkaczyk AH. Multiphoton flow cytometry strategies and applications. Cytometry A 2011; 79:775-88. [DOI: 10.1002/cyto.a.21110] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2011] [Revised: 06/15/2011] [Accepted: 06/27/2011] [Indexed: 12/20/2022]
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Tkaczyk ER, Tkaczyk AH, Mauring K, Ye JY, Baker JR, Norris TB. Quantitative differentiation of dyes with overlapping one-photon spectra by femtosecond pulse shaping. JOURNAL OF LUMINESCENCE 2010; 130:29-34. [PMID: 20160886 PMCID: PMC2772214 DOI: 10.1016/j.jlumin.2009.07.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
We demonstrate that DiI and Rhodamine B, which are not easily distinguishable to one-photon measurements, can be differentiated and in fact quantified in mixture via tailored two-photon excitation pulses found by a genetic algorithm (GA). A nearly three-fold difference in the ratio of two-photon fluorescence of the two dyes is achieved, without a drop in signal of the favored fluorophore. Implementing an acousto-optic interferometer, we were able to prove that the mechanism of discrimination is second-harmonic tuning by the phase-shaped pulses to the relative maxima and minima of these cross-sections.
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Affiliation(s)
- Eric R. Tkaczyk
- Center for Ultrafast Optical Science, University of Michigan, 2200 Bonisteel Blvd., Ann Arbor, MI 48109-2099, USA
- Michigan Nanotechnology Institute for Medicine and Biological Sciences, 9220 MSRB III, 1150 West Medical Center Drive, SPC 5648, Ann Arbor, MI 48109-5408, USA
| | - Alan H. Tkaczyk
- Institute of Physics, University of Tartu, Riia 142, 51014 Tartu, Estonia
- Department of Biomedical Engineering, University of Michigan, 2200 Bonisteel Blvd., Ann Arbor, MI 48109-2099, USA
| | - Koit Mauring
- Institute of Physics, University of Tartu, Riia 142, 51014 Tartu, Estonia
| | - Jing Yong Ye
- Center for Ultrafast Optical Science, University of Michigan, 2200 Bonisteel Blvd., Ann Arbor, MI 48109-2099, USA
- Michigan Nanotechnology Institute for Medicine and Biological Sciences, 9220 MSRB III, 1150 West Medical Center Drive, SPC 5648, Ann Arbor, MI 48109-5408, USA
| | - James R. Baker
- Michigan Nanotechnology Institute for Medicine and Biological Sciences, 9220 MSRB III, 1150 West Medical Center Drive, SPC 5648, Ann Arbor, MI 48109-5408, USA
| | - Theodore B. Norris
- Center for Ultrafast Optical Science, University of Michigan, 2200 Bonisteel Blvd., Ann Arbor, MI 48109-2099, USA
- Michigan Nanotechnology Institute for Medicine and Biological Sciences, 9220 MSRB III, 1150 West Medical Center Drive, SPC 5648, Ann Arbor, MI 48109-5408, USA
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