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Ayala-Orozco C, Galvez-Aranda D, Corona A, Seminario JM, Rangel R, Myers JN, Tour JM. Molecular jackhammers eradicate cancer cells by vibronic-driven action. Nat Chem 2024; 16:456-465. [PMID: 38114816 DOI: 10.1038/s41557-023-01383-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 10/24/2023] [Indexed: 12/21/2023]
Abstract
Through the actuation of vibronic modes in cell-membrane-associated aminocyanines, using near-infrared light, a distinct type of molecular mechanical action can be exploited to rapidly kill cells by necrosis. Vibronic-driven action (VDA) is distinct from both photodynamic therapy and photothermal therapy as its mechanical effect on the cell membrane is not abrogated by inhibitors of reactive oxygen species and it does not induce thermal killing. Subpicosecond concerted whole-molecule vibrations of VDA-induced mechanical disruption can be achieved using very low concentrations (500 nM) of aminocyanines or low doses of light (12 J cm-2, 80 mW cm-2 for 2.5 min), resulting in complete eradication of human melanoma cells in vitro. Also, 50% tumour-free efficacy in mouse models for melanoma was achieved. The molecules that destroy cell membranes through VDA have been termed molecular jackhammers because they undergo concerted whole-molecule vibrations. Given that a cell is unlikely to develop resistance to such molecular mechanical forces, molecular jackhammers present an alternative modality for inducing cancer cell death.
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Affiliation(s)
| | - Diego Galvez-Aranda
- Department of Chemical Engineering and Department of Electrical and Computer Engineering, Texas A&M University, College Station, TX, USA
| | - Arnoldo Corona
- Department of Head and Neck Surgery, Division of Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Jorge M Seminario
- Department of Chemical Engineering and Department of Electrical and Computer Engineering, Texas A&M University, College Station, TX, USA.
- Department of Materials Science and Engineering, Texas A&M University, College Station, TX, USA.
| | - Roberto Rangel
- Department of Head and Neck Surgery, Division of Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Jeffrey N Myers
- Department of Head and Neck Surgery, Division of Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
| | - James M Tour
- Department of Chemistry, Rice University, Houston, TX, USA.
- Department of Materials Science and NanoEngineering, NanoCarbon Center, Smalley-Curl Institute and The Rice Advanced Materials Institute, Rice University, Houston, TX, USA.
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2
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Lewis D, Setzler C, Goodwin PM, Thomas K, Branham M, Arrington CA, Petty JT. Interrupted DNA and Slow Silver Cluster Luminescence. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2023; 127:10574-10584. [PMID: 37313118 PMCID: PMC10258842 DOI: 10.1021/acs.jpcc.3c01050] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 05/16/2023] [Indexed: 06/15/2023]
Abstract
A DNA-silver cluster conjugate is a hierarchical chromophore with a partly reduced silver core embedded within the DNA nucleobases that are covalently linked by the phosphodiester backbone. Specific sites within a polymeric DNA can be targeted to spectrally tune the silver cluster. Here, the repeated (C2A)6 strand is interrupted with a thymine, and the resulting (C2A)2-T-(C2A)4 forms only Ag106+, a chromophore with both prompt (∼1 ns) green and sustained (∼102 μs) red luminescence. Thymine is an inert placeholder that can be removed, and the two fragments (C2A)2 and (C2A)4 also produce the same Ag106+ adduct. In relation to (C2A)2T(C2A)4, the (C2A)2 + (C2A)4 pair is distinguished because the red Ag106+ luminescence is ∼6× lower, relaxes ∼30% faster, and is quenched ∼2× faster with O2. These differences suggest that a specific break in the phosphodiester backbone can regulate how a contiguous vs broken scaffold wraps and better protects its cluster adduct.
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Affiliation(s)
- David Lewis
- Department
of Chemistry, Furman University, Greenville, South Carolina 29163, United States
| | - Caleb Setzler
- Department
of Chemistry, Furman University, Greenville, South Carolina 29163, United States
| | - Peter M. Goodwin
- Center
for Integrated Nanotechnologies, Mail Stop K771, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Kirsten Thomas
- Department
of Chemistry, Furman University, Greenville, South Carolina 29163, United States
| | - Makayla Branham
- Department
of Chemistry, Furman University, Greenville, South Carolina 29163, United States
| | - Caleb A. Arrington
- Department
of Chemistry, Wofford College, Spartanburg, South Carolina 29303, United States
| | - Jeffrey T. Petty
- Department
of Chemistry, Furman University, Greenville, South Carolina 29163, United States
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3
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Mukherjee S, Thomas C, Wilson R, Simmerman E, Hung ST, Jimenez R. Characterizing Dark State Kinetics and Single Molecule Fluorescence of FusionRed and FusionRed-MQ at Low Irradiances. Phys Chem Chem Phys 2022; 24:14310-14323. [DOI: 10.1039/d2cp00889k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The presence of dark states causes fluorescence intermittency of single molecules due to transitions between “on” and “off” states. Genetically encodable markers such as fluorescent proteins (FPs) exhibit dark states...
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4
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Petty JT, Carnahan S, Kim D, Lewis D. Long-lived Ag 10 6+ luminescence and a split DNA scaffold. J Chem Phys 2021; 154:244302. [PMID: 34241360 DOI: 10.1063/5.0056214] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Molecular silver clusters emit across the visible to near-infrared, and specific chromophores can be formed using DNA strands. We study C4AC4TC3G that selectively coordinates and encapsulates Ag10 6+, and this chromophore has two distinct electronic transitions. The green emission is strong and prompt with ϕ = 18% and τ = 1.25 ns, and the near-infrared luminescence is weaker, slower with τ = 50 µs, and is partly quenched by oxygen, suggesting phosphorescence. This lifetime can be modulated by the DNA host, and we consider two derivatives of C4AC4TC3G with similar sequences but distinct structures. In one variant, thymine was excised to create an abasic gap in an otherwise intact strand. In the other, the covalent phosphate linkage was removed to split the DNA scaffold into two fragments. In relation to the contiguous strands, the broken template speeds the luminescence decay by twofold, and this difference may be due to greater DNA flexibility. These modifications suggest that a DNA can be structurally tuned to modulate metastable electronic states in its silver cluster adducts.
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Affiliation(s)
- Jeffrey T Petty
- Department of Chemistry, Furman University, Greenville, South Carolina 29613, USA
| | - Savannah Carnahan
- Department of Chemistry, Furman University, Greenville, South Carolina 29613, USA
| | - Dahye Kim
- Department of Chemistry, Furman University, Greenville, South Carolina 29613, USA
| | - David Lewis
- Department of Chemistry, Furman University, Greenville, South Carolina 29613, USA
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5
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Demissie AA, Dickson RM. Triplet Shelving in Fluorescein and Its Derivatives Provides Delayed, Background-Free Fluorescence Detection. J Phys Chem A 2020; 124:1437-1443. [PMID: 31976677 DOI: 10.1021/acs.jpca.9b11040] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Fluorescence from the xanthene dyes rose bengal, erythrosine B, eosin Y, and fluorescein is modulated by reversibly optically populating and depopulating their long-lived triplet states through coillumination with a second, long-wavelength laser. Here, we show that repumping the S1 state from the triplet generates strong, nanosecond-lived optically activated delayed fluorescence (OADF), microseconds to milliseconds after primary pulsed excitation. This time-delayed emission upon long-wavelength illumination generates fluorescence after triplet shelving and is a major contribution to fluorescence enhancement/modulation. The time-delayed and background-free OADF component is further increased using a >1 μs burst continuous wave excitation scheme to increase the steady-state triplet populations, yielding strong OADF even from strongly emissive fluorescein. Because emission is delayed long after the high-energy primary excitation, yellow-orange fluorescence is readily observed on zero background. As OADF generation depends on the triplet quantum yields and the reverse intersystem crossing rates, we directly probe the usually difficult-to-measure photophysics, create new zero-background detection schemes, and increase OADF through tailored excitation schemes, all improving sensitivity. The excellent match between experiments and simulations demonstrates the promise of these studies for OADF characterization, while enabling us to determine that OADF (in contrast to ground-state recovery and re-excitation) is the major component of fluorescence enhancement for xanthenes studied with triplet quantum yields exceeding 0.1.
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Affiliation(s)
- Aida A Demissie
- School of Chemistry & Biochemistry and Petit Institute of Bioengineering and Bioscience , Georgia Institute of Technology , Atlanta , Georgia 30332-0400 , United States
| | - Robert M Dickson
- School of Chemistry & Biochemistry and Petit Institute of Bioengineering and Bioscience , Georgia Institute of Technology , Atlanta , Georgia 30332-0400 , United States
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6
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Mahoney DP, Demissie AA, Dickson RM. Optically Activated Delayed Fluorescence through Control of Cyanine Dye Photophysics. J Phys Chem A 2019; 123:3599-3606. [PMID: 30908044 DOI: 10.1021/acs.jpca.9b01333] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Merocyanine 540 fluorescence can be enhanced by optically depopulating dark photoisomer states to regenerate the fluorescence-generating manifold of the all-trans isomer. Here, we utilize a competing modulation route, long-wavelength coexcitation of the trans triplet population to not only modulate fluorescence through enhanced ground-state recovery but also generate optically activated delayed fluorescence (OADF) with longer-wavelength co-illumination. Such OADF (∼580 nm) is directly observed with pulsed fluorescence excitation at 532 nm, followed by long-wavelength (637 nm) continuous wave depopulation of the photogenerated triplet by repopulating the emissive S1 state. Such reverse intersystem crossing (RISC) results in ns-lived fluorescence delayed by several microseconds after the initial primary excitation pulse and the prompt 1 ns-lived fluorescence that it induces. The dark state from which OADF is generated decays more rapidly with increased secondary laser intensity, as the optically induced RISC rate increases. This first OADF from organic dyes is observed, as the red secondary laser excites ∼580 nm, <1 ns-lived fluorescence from the previously optically prepared ∼1 μs-lived triplet state. This sequential two-photon, repumped fluorescence yields background-free collection with potential for new high-sensitivity fluorescence imaging schemes.
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Affiliation(s)
- Daniel P Mahoney
- School of Chemistry & Biochemistry and Petit Institute of Bioengineering and Bioscience , Georgia Institute of Technology , Atlanta , Georgia 30332 , United States
| | - Aida A Demissie
- School of Chemistry & Biochemistry and Petit Institute of Bioengineering and Bioscience , Georgia Institute of Technology , Atlanta , Georgia 30332 , United States
| | - Robert M Dickson
- School of Chemistry & Biochemistry and Petit Institute of Bioengineering and Bioscience , Georgia Institute of Technology , Atlanta , Georgia 30332 , United States
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7
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Rigler R, Widengren J. Fluorescence-based monitoring of electronic state and ion exchange kinetics with FCS and related techniques: from T-jump measurements to fluorescence fluctuations. EUROPEAN BIOPHYSICS JOURNAL : EBJ 2018; 47:479-492. [PMID: 29260269 PMCID: PMC5982452 DOI: 10.1007/s00249-017-1271-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Revised: 10/30/2017] [Accepted: 12/03/2017] [Indexed: 11/01/2022]
Abstract
In this review, we give a historical view of how our research in the development and use of fluorescence correlation spectroscopy (FCS) and related techniques has its roots and how it originally evolved from the pioneering work of Manfred Eigen, his colleagues, and coworkers. Work on temperature-jump (T-jump) experiments, conducted almost 50 years ago, led on to the development of the FCS technique. The pioneering work in the 1970s, introducing and demonstrating the concept for FCS, in turn formed the basis for the breakthrough use of FCS more than 15 years later. FCS can be used for monitoring reaction kinetics, based on fluctuations at thermodynamic equilibrium, rather than on relaxation measurements following perturbations. In this review, we more specifically discuss FCS measurements on photodynamic, electronic state transitions in fluorophore molecules, and on proton exchange dynamics in solution and on biomembranes. In the latter case, FCS measurements have proven capable of casting new light on the mechanisms of proton exchange at biological membranes, of central importance to bioenergetics and signal transduction. Finally, we describe the transient-state (TRAST) spectroscopy/imaging technique, sharing features with both relaxation (T-jump) and equilibrium fluctuation (FCS) techniques. TRAST is broadly applicable for cellular and molecular studies, and we briefly outline how TRAST can provide unique information from fluorophore blinking kinetics, reflecting e.g., cellular metabolism, rare molecular encounters, and molecular stoichiometries.
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Affiliation(s)
- Rudolf Rigler
- Department of Medical Biochemistry and Biophysics, Karolinska Institute, Stockholm, Sweden
| | - Jerker Widengren
- Experimental Biomolecular Physics/ Department of Applied Physics, Royal Institute of Technology (KTH), Stockholm, Sweden.
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8
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Zhang R, Chouket R, Plamont MA, Kelemen Z, Espagne A, Tebo AG, Gautier A, Gissot L, Faure JD, Jullien L, Croquette V, Le Saux T. Macroscale fluorescence imaging against autofluorescence under ambient light. LIGHT, SCIENCE & APPLICATIONS 2018; 7:97. [PMID: 30510693 PMCID: PMC6261969 DOI: 10.1038/s41377-018-0098-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Revised: 10/27/2018] [Accepted: 10/27/2018] [Indexed: 05/07/2023]
Abstract
Macroscale fluorescence imaging is increasingly used to observe biological samples. However, it may suffer from spectral interferences that originate from ambient light or autofluorescence of the sample or its support. In this manuscript, we built a simple and inexpensive fluorescence macroscope, which has been used to evaluate the performance of Speed OPIOM (Out of Phase Imaging after Optical Modulation), which is a reference-free dynamic contrast protocol, to selectively image reversibly photoswitchable fluorophores as labels against detrimental autofluorescence and ambient light. By tuning the intensity and radial frequency of the modulated illumination to the Speed OPIOM resonance and adopting a phase-sensitive detection scheme that ensures noise rejection, we enhanced the sensitivity and the signal-to-noise ratio for fluorescence detection in blot assays by factors of 50 and 10, respectively, over direct fluorescence observation under constant illumination. Then, we overcame the strong autofluorescence of growth media that are currently used in microbiology and realized multiplexed fluorescence observation of colonies of spectrally similar fluorescent bacteria with a unique configuration of excitation and emission wavelengths. Finally, we easily discriminated fluorescent labels from the autofluorescent and reflective background in labeled leaves, even under the interference of incident light at intensities that are comparable to sunlight. The proposed approach is expected to find multiple applications, from biological assays to outdoor observations, in fluorescence macroimaging.
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Affiliation(s)
- Ruikang Zhang
- PASTEUR, Département de Chimie, École Normale Supérieure, PSL University, Sorbonne Université, CNRS, 75005 Paris, France
| | - Raja Chouket
- PASTEUR, Département de Chimie, École Normale Supérieure, PSL University, Sorbonne Université, CNRS, 75005 Paris, France
| | - Marie-Aude Plamont
- PASTEUR, Département de Chimie, École Normale Supérieure, PSL University, Sorbonne Université, CNRS, 75005 Paris, France
| | - Zsolt Kelemen
- Institut Jean-Pierre Bourgin, INRA, AgroParisTech, CNRS, Saclay Plant Science (SPS), Université Paris-Saclay, Versailles, France
| | - Agathe Espagne
- PASTEUR, Département de Chimie, École Normale Supérieure, PSL University, Sorbonne Université, CNRS, 75005 Paris, France
| | - Alison G. Tebo
- PASTEUR, Département de Chimie, École Normale Supérieure, PSL University, Sorbonne Université, CNRS, 75005 Paris, France
| | - Arnaud Gautier
- PASTEUR, Département de Chimie, École Normale Supérieure, PSL University, Sorbonne Université, CNRS, 75005 Paris, France
| | - Lionel Gissot
- Institut Jean-Pierre Bourgin, INRA, AgroParisTech, CNRS, Saclay Plant Science (SPS), Université Paris-Saclay, Versailles, France
| | - Jean-Denis Faure
- Institut Jean-Pierre Bourgin, INRA, AgroParisTech, CNRS, Saclay Plant Science (SPS), Université Paris-Saclay, Versailles, France
| | - Ludovic Jullien
- PASTEUR, Département de Chimie, École Normale Supérieure, PSL University, Sorbonne Université, CNRS, 75005 Paris, France
| | - Vincent Croquette
- Laboratoire de Physique Statistique, École Normale Supérieure, PSL Research University, Université Paris Diderot Sorbonne Paris-Cité, Sorbonne Université, CNRS, 75005 Paris, France
- Institut de biologie de l’École normale supérieure (IBENS), École Normale Supérieure, CNRS, INSERM, PSL Research University, 75005 Paris, France
| | - Thomas Le Saux
- PASTEUR, Département de Chimie, École Normale Supérieure, PSL University, Sorbonne Université, CNRS, 75005 Paris, France
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9
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Krause S, Carro-Temboury MR, Cerretani C, Vosch T. Anti-Stokes fluorescence microscopy using direct and indirect dark state formation. Chem Commun (Camb) 2018; 54:4569-4572. [DOI: 10.1039/c8cc01521j] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Optically activated delayed fluorescence and upconversion fluorescence allow removing unwanted auto-fluorescence.
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Affiliation(s)
- Stefan Krause
- Nanoscience Center and Department of Chemistry
- University of Copenhagen
- Copenhagen 2100
- Denmark
| | | | - Cecilia Cerretani
- Nanoscience Center and Department of Chemistry
- University of Copenhagen
- Copenhagen 2100
- Denmark
| | - Tom Vosch
- Nanoscience Center and Department of Chemistry
- University of Copenhagen
- Copenhagen 2100
- Denmark
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10
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Abstract
We harness the photophysics of few-atom silver nanoclusters to create the first fluorophores capable of optically activated delayed fluorescence (OADF). In analogy with thermally activated delayed fluorescence, often resulting from oxygen- or collision-activated reverse intersystem crossing from triplet levels, this optically controllable/reactivated visible emission occurs with the same 2.2 ns fluorescence lifetime as that produced with primary excitation alone but is excited with near-infrared light from either of two distinct, long-lived photopopulated dark states. In addition to faster ground-state recovery under long-wavelength co-illumination, this "repumped" visible fluorescence occurs many microsceconds after visible excitation and only when gated by secondary near-IR excitation of ∼1-100 μs-lived dark excited states. By deciphering the Ag nanocluster photophysics, we demonstrate that OADF improves upon previous optical modulation schemes for near-complete background rejection in fluorescence detection. Likely extensible to other fluorophores with photopopulatable excited dark states, OADF holds potential for drastically improving fluorescence signal recovery from high backgrounds.
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Affiliation(s)
- Blake C. Fleischer
- School of Chemistry and Biochemistry and Institute for Biosciences and Bioengineering, Georgia Institute of Technology, Atlanta, GA 30332-0400
| | | | - Jung-Cheng Hsiang
- School of Chemistry and Biochemistry and Institute for Biosciences and Bioengineering, Georgia Institute of Technology, Atlanta, GA 30332-0400
| | - Robert M. Dickson
- School of Chemistry and Biochemistry and Institute for Biosciences and Bioengineering, Georgia Institute of Technology, Atlanta, GA 30332-0400
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11
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Pellegrotti JV, Cortés E, Bordenave MD, Caldarola M, Kreuzer MP, Sanchez AD, Ojea I, Bragas AV, Stefani FD. Plasmonic Photothermal Fluorescence Modulation for Homogeneous Biosensing. ACS Sens 2016. [DOI: 10.1021/acssensors.6b00512] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Jesica V. Pellegrotti
- Centro
de Investigaciones en Bionanociencas (CIBION), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz
2390, C1425FQD Buenos
Aires, Argentina
| | - Emiliano Cortés
- Centro
de Investigaciones en Bionanociencas (CIBION), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz
2390, C1425FQD Buenos
Aires, Argentina
| | - Martin D. Bordenave
- Centro
de Investigaciones en Bionanociencas (CIBION), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz
2390, C1425FQD Buenos
Aires, Argentina
| | | | - Mark P. Kreuzer
- Centro
de Investigaciones en Bionanociencas (CIBION), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz
2390, C1425FQD Buenos
Aires, Argentina
| | - Alfredo D. Sanchez
- Centro
de Investigaciones en Bionanociencas (CIBION), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz
2390, C1425FQD Buenos
Aires, Argentina
| | | | | | - Fernando D. Stefani
- Centro
de Investigaciones en Bionanociencas (CIBION), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz
2390, C1425FQD Buenos
Aires, Argentina
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12
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Quérard J, Le Saux T, Gautier A, Alcor D, Croquette V, Lemarchand A, Gosse C, Jullien L. Kinetics of Reactive Modules Adds Discriminative Dimensions for Selective Cell Imaging. Chemphyschem 2016; 17:1396-413. [PMID: 26833808 DOI: 10.1002/cphc.201500987] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Indexed: 11/07/2022]
Abstract
Living cells are chemical mixtures of exceptional interest and significance, whose investigation requires the development of powerful analytical tools fulfilling the demanding constraints resulting from their singular features. In particular, multiplexed observation of a large number of molecular targets with high spatiotemporal resolution appears highly desirable. One attractive road to address this analytical challenge relies on engaging the targets in reactions and exploiting the rich kinetic signature of the resulting reactive module, which originates from its topology and its rate constants. This review explores the various facets of this promising strategy. We first emphasize the singularity of the content of a living cell as a chemical mixture and suggest that its multiplexed observation is significant and timely. Then, we show that exploiting the kinetics of analytical processes is relevant to selectively detect a given analyte: upon perturbing the system, the kinetic window associated to response read-out has to be matched with that of the targeted reactive module. Eventually, we introduce the state-of-the-art of cell imaging exploiting protocols based on reaction kinetics and draw some promising perspectives.
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Affiliation(s)
- Jérôme Quérard
- Ecole Normale Supérieure-PSL Research University; Département de Chimie; 24, rue Lhomond F-75005 Paris France
- Sorbonne Universités; UPMC Univ Paris 06, PASTEUR; F-75005 Paris France
- CNRS, UMR 8640 PASTEUR; F-75005 Paris France
| | - Thomas Le Saux
- Ecole Normale Supérieure-PSL Research University; Département de Chimie; 24, rue Lhomond F-75005 Paris France
- Sorbonne Universités; UPMC Univ Paris 06, PASTEUR; F-75005 Paris France
- CNRS, UMR 8640 PASTEUR; F-75005 Paris France
| | - Arnaud Gautier
- Ecole Normale Supérieure-PSL Research University; Département de Chimie; 24, rue Lhomond F-75005 Paris France
- Sorbonne Universités; UPMC Univ Paris 06, PASTEUR; F-75005 Paris France
- CNRS, UMR 8640 PASTEUR; F-75005 Paris France
| | - Damien Alcor
- INSERM U1065, C3M; 151 route Saint Antoine de Ginestière, BP 2 3194 F-06204 Nice Cedex 3 France
| | - Vincent Croquette
- Ecole Normale Supérieure; Département de Physique and Département de Biologie, Laboratoire de Physique Statistique UMR CNRS-ENS 8550; 24 rue Lhomond F-75005 Paris France
| | - Annie Lemarchand
- Sorbonne Universités; UPMC Univ Paris 06, Laboratoire de Physique Théorique de la Matière Condensée; 4 place Jussieu, case courrier 121 75252 Paris cedex 05 France
- CNRS, UMR 7600 LPTMC; 75005 Paris France
| | - Charlie Gosse
- Laboratoire de Photonique et de Nanostructures, LPN-CNRS; route de Nozay 91460 Marcoussis France
| | - Ludovic Jullien
- Ecole Normale Supérieure-PSL Research University; Département de Chimie; 24, rue Lhomond F-75005 Paris France
- Sorbonne Universités; UPMC Univ Paris 06, PASTEUR; F-75005 Paris France
- CNRS, UMR 8640 PASTEUR; F-75005 Paris France
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13
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Licari G, Brevet PF, Vauthey E. Fluorescent DNA probes at liquid/liquid interfaces studied by surface second harmonic generation. Phys Chem Chem Phys 2016; 18:2981-92. [DOI: 10.1039/c5cp06151b] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The excited-state properties of oxazole yellow DNA probes change substantially when going from bulk water to the dodecane/water interface.
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Affiliation(s)
- Giuseppe Licari
- Department of Physical Chemistry
- University of Geneva
- CH-1211 Geneva 4
- Switzerland
| | - Pierre-François Brevet
- Institut Lumière Matière
- UMR CNRS 5306
- Université Claude Bernard
- Lyon 1
- Campus LyonTech – La Doua
| | - Eric Vauthey
- Department of Physical Chemistry
- University of Geneva
- CH-1211 Geneva 4
- Switzerland
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