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Kleiner S, Wulf V, Bisker G. Single-walled carbon nanotubes as near-infrared fluorescent probes for bio-inspired supramolecular self-assembled hydrogels. J Colloid Interface Sci 2024; 670:439-448. [PMID: 38772260 DOI: 10.1016/j.jcis.2024.05.098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Revised: 05/12/2024] [Accepted: 05/14/2024] [Indexed: 05/23/2024]
Abstract
Hydrogels derived from fluorenylmethoxycarbonyl (Fmoc)-conjugated amino acids and peptides demonstrate remarkable potential in biomedical applications, including drug delivery, tissue regeneration, and tissue engineering. These hydrogels can be injectable, offering a minimally invasive approach to hydrogel implantation. Given their potential for prolonged application, there is a need for non-destructive evaluation of their properties over extended periods. Thus, we introduce a hydrogel characterization platform employing single-walled carbon nanotubes (SWCNTs) as near-infrared (NIR) fluorescent probes. Our approach involves generating supramolecular self-assembling hydrogels from aromatic Fmoc-amino acids. Integrating SWCNTs into the hydrogels maintains their structural and mechanical properties, establishing SWCNTs as optical probes for hydrogels. We demonstrate that the SWCNT NIR-fluorescence changes during the gelation process correlate to rheological changes within the hydrogels. Additionally, single particle tracking of SWCNTs incorporated in the hydrogels provides insights into differences in hydrogel morphologies. Furthermore, the disassembly process of the hydrogels can be monitored through the SWCNT fluorescence modulation. The unique attribute of SWCNTs as non-photobleaching fluorescent sensors, emitting at the biologically transparent window, offers a non-destructive method for studying hydrogel dynamics over extended periods. This platform could be applied to a wide range of self-assembling hydrogels to advance our understanding and applications of supramolecular assembly technologies.
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Affiliation(s)
- Shirel Kleiner
- Department of Biomedical Engineering, Faculty of Engineering, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Verena Wulf
- Department of Biomedical Engineering, Faculty of Engineering, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Gili Bisker
- Department of Biomedical Engineering, Faculty of Engineering, Tel Aviv University, Tel Aviv 6997801, Israel; Center for Physics and Chemistry of Living Systems, Tel Aviv University, Tel Aviv 6997801, Israel; Center for Nanoscience and Nanotechnology, Tel Aviv University, Tel Aviv 6997801, Israel; Center for Light-Matter Interaction, Tel Aviv University, Tel Aviv 6997801, Israel.
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2
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Simon AA, Haye L, Alhalabi A, Gresil Q, Muñoz BM, Mornet S, Reisch A, Le Guével X, Cognet L. Expanding the Palette of SWIR Emitting Nanoparticles Based on Au Nanoclusters for Single-Particle Tracking Microscopy. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2309267. [PMID: 38639398 PMCID: PMC11199965 DOI: 10.1002/advs.202309267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 03/28/2024] [Indexed: 04/20/2024]
Abstract
Single-molecule localization microscopy has proved promising to unravel the dynamics and molecular architecture of thin biological samples down to nanoscales. For applications in complex, thick biological tissues shifting single-particle emission wavelengths to the shortwave infrared (SWIR also called NIR II) region between 900 to 2100 nm, where biological tissues are more transparent is key. To date, mainly single-walled carbon nanotubes (SWCNTs) enable such applications, but they are inherently 1D objects. Here, 0D ultra-small luminescent gold nanoclusters (AuNCs, <3 nm) and ≈25 nm AuNC-loaded-polymeric particles that can be detected at the single-particle level in the SWIR are presented. Thanks to high brightness and excellent photostability, it is shown that the dynamics of the spherical polymeric particles can be followed at the single-particle level in solution at video rates for minutes. We compared single particle tracking of AuNC-loaded-polymeric particles with that of SWCNT diffusing in agarose gels demonstrating the specificity and complementarity of diffusion properties of these SWIR-emitting nano-objects when exploring a complex environment. This extends the library of photostable SWIR emitting nanomaterials to 0D nano-objects of variable size for single-molecule localization microscopy in the second biological window, opening unprecedented possibilities for mapping the structure and dynamics of complex biological systems.
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Affiliation(s)
- Apolline A. Simon
- Univ. BordeauxLaboratoire Photonique Numérique et Nanosciences (LP2N)UMR 5298TalenceF‐33400France
- Institut d'Optique Graduate School & CNRSLP2N UMR 5298TalenceF‐33400France
- Univ. BordeauxCNRSBordeaux INPICMCBUMR 5026Pessac33600France
| | - Lucie Haye
- Université de StrasbourgCNRSLaboratoire de Bioimagerie et Pathologies UMR 7021StrasbourgF‐67000France
| | - Abdallah Alhalabi
- University of Grenoble AlpesInstitute for Advanced BiosciencesINSERM1209/CNRS‐UMR5309GrenobleF‐38700France
| | - Quentin Gresil
- Univ. BordeauxLaboratoire Photonique Numérique et Nanosciences (LP2N)UMR 5298TalenceF‐33400France
- Institut d'Optique Graduate School & CNRSLP2N UMR 5298TalenceF‐33400France
| | - Blanca Martín Muñoz
- Univ. BordeauxLaboratoire Photonique Numérique et Nanosciences (LP2N)UMR 5298TalenceF‐33400France
- Institut d'Optique Graduate School & CNRSLP2N UMR 5298TalenceF‐33400France
| | - Stéphane Mornet
- Univ. BordeauxCNRSBordeaux INPICMCBUMR 5026Pessac33600France
| | - Andreas Reisch
- Université de StrasbourgCNRSLaboratoire de Bioimagerie et Pathologies UMR 7021StrasbourgF‐67000France
- Inserm UMR_S 1121CNRS EMR 7003Université de StrasbourgBiomaterials and BioengineeringCentre de Recherche en Biomédecine de Strasbourg1 rue Eugène BoeckelStrasbourgF‐67000France
| | - Xavier Le Guével
- University of Grenoble AlpesInstitute for Advanced BiosciencesINSERM1209/CNRS‐UMR5309GrenobleF‐38700France
| | - Laurent Cognet
- Univ. BordeauxLaboratoire Photonique Numérique et Nanosciences (LP2N)UMR 5298TalenceF‐33400France
- Institut d'Optique Graduate School & CNRSLP2N UMR 5298TalenceF‐33400France
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3
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Lee A, Simon AA, Boyreau A, Allain-Courtois N, Lambert B, Pradère JP, Saltel F, Cognet L. Identification of Early Stage Liver Fibrosis by Modifications in the Interstitial Space Diffusive Microenvironment Using Fluorescent Single-Walled Carbon Nanotubes. NANO LETTERS 2024; 24:5603-5609. [PMID: 38669477 DOI: 10.1021/acs.nanolett.4c00955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/28/2024]
Abstract
During liver fibrosis, recurrent hepatic injuries lead to the accumulation of collagen and other extracellular matrix components in the interstitial space, ultimately disrupting liver functions. Early stages of liver fibrosis may be reversible, but opportunities for diagnosis at these stages are currently limited. Here, we show that the alterations of the interstitial space associated with fibrosis can be probed by tracking individual fluorescent single-walled carbon nanotubes (SWCNTs) diffusing in that space. In a mouse model of early liver fibrosis, we find that nanotubes generally explore elongated areas, whose lengths decrease as the disease progresses, even in regions where histopathological examination does not reveal fibrosis yet. Furthermore, this decrease in nanotube mobility is a purely geometrical effect as the instantaneous nanotube diffusivity stays unmodified. This work establishes the promise of SWCNTs both for diagnosing liver fibrosis at an early stage and for more in-depth studies of the biophysical effects of the disease.
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Affiliation(s)
- Antony Lee
- Laboratoire Photonique Numérique et Nanosciences, Université de Bordeaux, 33400 Talence, France
- CNRS - UMR 5298, LP2N, Institut d'Optique Graduate School, 33400 Talence, France
- CNRS UMR168, Laboratoire Physique des Cellules et Cancer, Institut Curie, Université PSL, Sorbonne Université, 75005 Paris, France
| | - Apolline A Simon
- Laboratoire Photonique Numérique et Nanosciences, Université de Bordeaux, 33400 Talence, France
- CNRS - UMR 5298, LP2N, Institut d'Optique Graduate School, 33400 Talence, France
- CNRS, Bordeaux INP, ICMCB, UMR 5026, Univ. Bordeaux, 33600 Pessac, France
| | - Adeline Boyreau
- Laboratoire Photonique Numérique et Nanosciences, Université de Bordeaux, 33400 Talence, France
- CNRS - UMR 5298, LP2N, Institut d'Optique Graduate School, 33400 Talence, France
| | - Nathalie Allain-Courtois
- Inserm, UMR1312, BRIC, Bordeaux Institute of Oncology, University of Bordeaux, 146 Rue Léo Saignat, 33076 Bordeaux, France
| | - Benjamin Lambert
- Laboratoire Photonique Numérique et Nanosciences, Université de Bordeaux, 33400 Talence, France
- CNRS - UMR 5298, LP2N, Institut d'Optique Graduate School, 33400 Talence, France
| | - Jean-Philippe Pradère
- Institut RESTORE - UMR 1301 - Inserm/5070-CNRS/EFS, Univ. P. Sabatier, 31037 Toulouse, France
| | - Frédéric Saltel
- Inserm, UMR1312, BRIC, Bordeaux Institute of Oncology, University of Bordeaux, 146 Rue Léo Saignat, 33076 Bordeaux, France
| | - Laurent Cognet
- Laboratoire Photonique Numérique et Nanosciences, Université de Bordeaux, 33400 Talence, France
- CNRS - UMR 5298, LP2N, Institut d'Optique Graduate School, 33400 Talence, France
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4
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Paviolo C, Ferreira JS, Lee A, Hunter D, Calaresu I, Nandi S, Groc L, Cognet L. Near-Infrared Carbon Nanotube Tracking Reveals the Nanoscale Extracellular Space around Synapses. NANO LETTERS 2022; 22:6849-6856. [PMID: 36038137 PMCID: PMC9479209 DOI: 10.1021/acs.nanolett.1c04259] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
We provide evidence of a local synaptic nanoenvironment in the brain extracellular space (ECS) lying within 500 nm of postsynaptic densities. To reveal this brain compartment, we developed a correlative imaging approach dedicated to thick brain tissue based on single-particle tracking of individual fluorescent single wall carbon nanotubes (SWCNTs) in living samples and on speckle-based HiLo microscopy of synaptic labels. We show that the extracellular space around synapses bears specific properties in terms of morphology at the nanoscale and inner diffusivity. We finally show that the ECS juxta-synaptic region changes its diffusion parameters in response to neuronal activity, indicating that this nanoenvironment might play a role in the regulation of brain activity.
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Affiliation(s)
- Chiara Paviolo
- Université
de Bordeaux, Institut d’Optique & Centre National de la
Recherche Scientifique, UMR 5298, 33400 Talence, France
| | - Joana S. Ferreira
- Université
de Bordeaux, Interdisciplinary Institute for Neuroscience, UMR 5297, 33076 Bordeaux, France
| | - Antony Lee
- Université
de Bordeaux, Institut d’Optique & Centre National de la
Recherche Scientifique, UMR 5298, 33400 Talence, France
| | - Daniel Hunter
- Université
de Bordeaux, Interdisciplinary Institute for Neuroscience, UMR 5297, 33076 Bordeaux, France
| | - Ivo Calaresu
- Université
de Bordeaux, Interdisciplinary Institute for Neuroscience, UMR 5297, 33076 Bordeaux, France
| | - Somen Nandi
- Université
de Bordeaux, Institut d’Optique & Centre National de la
Recherche Scientifique, UMR 5298, 33400 Talence, France
| | - Laurent Groc
- Université
de Bordeaux, Interdisciplinary Institute for Neuroscience, UMR 5297, 33076 Bordeaux, France
| | - Laurent Cognet
- Université
de Bordeaux, Institut d’Optique & Centre National de la
Recherche Scientifique, UMR 5298, 33400 Talence, France
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5
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Supramolecular Self-Assembly of Dipalmitoylphosphatidylcholine and Carbon Nanotubes: A Dissipative Particle Dynamics Simulation Study. NANOMATERIALS 2022; 12:nano12152653. [PMID: 35957084 PMCID: PMC9370663 DOI: 10.3390/nano12152653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 07/26/2022] [Accepted: 08/01/2022] [Indexed: 11/21/2022]
Abstract
Dissipative particle dynamics simulations were performed to investigate the self-assembly of dipalmitoylphosphatidylcholine (DPPC) as a model lipid membrane on the surface of carbon nanotubes (CNTs). The influence of surface curvature of CNTs on self-assembly was investigated by performing simulations on solutions of DPPC in water in contact with CNTs of different diameters: CNT (10, 10), CNT (14, 14), CNT (20, 20), and CNT (34, 34). DPPC solutions with a wide range of concentrations were chosen to allow for formation of lipid structures of various surface densities, ranging from a submonolayer to a well-organized monolayer and a CNT covered with a lipid monolayer immersed in a planar lipid bilayer. Our results are indicative of a sequence of phase-ordering processes for DPPC on the surface of CNTs. At low surface coverages, the majority of hydrocarbon tail groups of DPPC are in contact with the CNT surface. Increasing the surface coverage leads to the formation of hemimicellar aggregates, and at high surface coverages close to the saturation limit, an organized lipid monolayer self-assembles. An examination of the mechanism of self-assembly reveals a two-step mechanism. The first step involves densification of DPPC on the CNT surface. Here, the lipid molecules do not adopt the order of the target phase (lipid monolayer on the CNT surface). In the second step, when the lipid density on the CNT surface is above a threshold value (close to saturation), the lipid molecules reorient themselves to form an organized monolayer around the tube. Here, the DPPC molecules adopt stretched conformations normal to the surface, the end hydrocarbon groups adsorb on the surface, and the head groups occupy the outermost part of the monolayer. The saturation density and the degree of lipid ordering on the CNT surface depend on the surface curvature. The saturation density increases with increased surface curvature, and better-ordered structures are formed on less curved surfaces.
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6
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Nandi S, Caicedo K, Cognet L. When Super-Resolution Localization Microscopy Meets Carbon Nanotubes. NANOMATERIALS 2022; 12:nano12091433. [PMID: 35564142 PMCID: PMC9105540 DOI: 10.3390/nano12091433] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 04/14/2022] [Accepted: 04/18/2022] [Indexed: 12/16/2022]
Abstract
We recently assisted in a revolution in the realm of fluorescence microscopy triggered by the advent of super-resolution techniques that surpass the classic diffraction limit barrier. By providing optical images with nanometer resolution in the far field, super-resolution microscopy (SRM) is currently accelerating our understanding of the molecular organization of bio-specimens, bridging the gap between cellular observations and molecular structural knowledge, which was previously only accessible using electron microscopy. SRM mainly finds its roots in progress made in the control and manipulation of the optical properties of (single) fluorescent molecules. The flourishing development of novel fluorescent nanostructures has recently opened the possibility of associating super-resolution imaging strategies with nanomaterials’ design and applications. In this review article, we discuss some of the recent developments in the field of super-resolution imaging explicitly based on the use of nanomaterials. As an archetypal class of fluorescent nanomaterial, we mainly focus on single-walled carbon nanotubes (SWCNTs), which are photoluminescent emitters at near-infrared (NIR) wavelengths bearing great interest for biological imaging and for information optical transmission. Whether for fundamental applications in nanomaterial science or in biology, we show how super-resolution techniques can be applied to create nanoscale images “in”, “of” and “with” SWCNTs.
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Affiliation(s)
- Somen Nandi
- Laboratoire Photonique Numérique et Nanosciences, Université de Bordeaux, UMR 5298, 33400 Talence, France; (S.N.); (K.C.)
- Institut d’Optique and CNRS, LP2N UMR 5298, 33400 Talence, France
| | - Karen Caicedo
- Laboratoire Photonique Numérique et Nanosciences, Université de Bordeaux, UMR 5298, 33400 Talence, France; (S.N.); (K.C.)
- Institut d’Optique and CNRS, LP2N UMR 5298, 33400 Talence, France
| | - Laurent Cognet
- Laboratoire Photonique Numérique et Nanosciences, Université de Bordeaux, UMR 5298, 33400 Talence, France; (S.N.); (K.C.)
- Institut d’Optique and CNRS, LP2N UMR 5298, 33400 Talence, France
- Correspondence:
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7
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Langenbacher R, Budhathoki-Uprety J, Jena PV, Roxbury D, Streit J, Zheng M, Heller DA. Single-Chirality Near-Infrared Carbon Nanotube Sub-Cellular Imaging and FRET Probes. NANO LETTERS 2021; 21:6441-6448. [PMID: 34296885 DOI: 10.1021/acs.nanolett.1c01093] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Applications of single-walled carbon nanotubes (SWCNTs) in bioimaging and biosensing have been limited by difficulties with isolating single-chirality nanotube preparations with desired functionalities. Unique optical properties, such as multiple narrow near-infrared bands and several modes of signal transduction, including solvatochromism and FRET, are ideal for live cell/organism imaging and sensing applications. However, internanotube FRET has not been investigated in biological contexts. We developed single-chirality subcellular SWCNT imaging probes and investigated their internanotube FRET capabilities in live cells. To functionalize SWCNTs, we replaced the surfactant coating of aqueous two-phase extraction-sorted single-chirality nanotubes with helical polycarbodiimide polymers containing different functionalities. We achieved single-chirality SWCNT targeting of different subcellular structures, including the nucleus, to enable multiplexed imaging. We also targeted purified (6,5) and (7,6) chiralities to the same structures and observed internanotube FRET within these organelles. This work portends the use of single-chirality carbon nanotube optical probes for applications in biomedical research.
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Affiliation(s)
| | - Januka Budhathoki-Uprety
- Department of Textile Engineering, Chemistry, and Science, North Carolina State University, Raleigh, North Carolina 27695, United States
| | - Prakrit V Jena
- Memorial Sloan Kettering Cancer Center, New York, New York 10065, United States
| | - Daniel Roxbury
- Department of Chemical Engineering, University of Rhode Island, Kingston, Rhode Island 02881, United States
| | - Jason Streit
- Air Force Research Laboratory, Wright-Patterson Air Force Base, Ohio 45433, United States
| | - Ming Zheng
- National Institute of Standards and Technology, Gaithersburg, Maryland 20089, United States
| | - Daniel A Heller
- Weill Cornell Medical College, New York, New York 10065, United States
- Memorial Sloan Kettering Cancer Center, New York, New York 10065, United States
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Abstract
Near-infrared (NIR) luminescent materials have emerged as a growing field of interest, particularly for imaging and optics applications in biology, chemistry, and physics. However, the development of materials for this and other use cases has been hindered by a range of issues that prevents their widespread use beyond benchtop research. This review explores emerging trends in some of the most promising NIR materials and their applications. In particular, we focus on how a more comprehensive understanding of intrinsic NIR material properties might allow researchers to better leverage these traits for innovative and robust applications in biological and physical sciences.
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Affiliation(s)
- Christopher T. Jackson
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, CA, USA
| | - Sanghwa Jeong
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, CA, USA
| | | | - Markita P. Landry
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, CA, USA
- Innovative Genomics Institute (IGI), Berkeley, CA, USA
- California Institute for Quantitative Biosciences, QB3, University of California, Berkeley, CA, USA
- Chan-Zuckerberg Biohub, San Francisco, CA, USA
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9
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Zheng Y, Alizadehmojarad AA, Bachilo SM, Kolomeisky AB, Weisman RB. Dye Quenching of Carbon Nanotube Fluorescence Reveals Structure-Selective Coating Coverage. ACS NANO 2020; 14:12148-12158. [PMID: 32845604 DOI: 10.1021/acsnano.0c05720] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Many properties and applications of single-wall carbon nanotubes (SWCNTs) depend strongly on the coatings that allow their suspension in aqueous media. We report that SWCNT fluorescence is quenched by reversible physisorption of dye molecules such as methylene blue, and that measurements of that quenching can be used to infer structure-specific exposures of the nanotube surface to the surrounding solution. SWCNTs suspended in single-stranded DNA oligomers show quenching dependent on the combination of nanotube structure and ssDNA base sequence. Several sequences are found to give notably high or low surface coverages for specific SWCNT species. These effects seem correlated with the selective recognitions used for DNA-based structural sorting of nanotubes. One notable example is that dye quenching of fluorescence from SWCNTs coated with the (ATT)4 base sequence is far stronger for one (7,5) enantiomer than for the other, showing that coating coverage is associated with the coating affinity difference reported previously for this system. Equilibrium modeling of quenching data has been used to extract parameters for comparative complexation constants and accessible surface areas. Further insights are obtained from molecular dynamics simulations, which give estimated contact areas between ssDNA and SWCNTs that correlate with experimentally inferred surface exposures and account for the enantiomeric discrimination of (ATT)4.
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Affiliation(s)
- Yu Zheng
- Department of Chemistry and the Smalley-Curl Institute, Rice University, Houston, Texas 77005, United States
| | - Ali A Alizadehmojarad
- Department of Chemistry and the Smalley-Curl Institute, Rice University, Houston, Texas 77005, United States
| | - Sergei M Bachilo
- Department of Chemistry and the Smalley-Curl Institute, Rice University, Houston, Texas 77005, United States
| | - Anatoly B Kolomeisky
- Department of Chemistry and the Smalley-Curl Institute, Rice University, Houston, Texas 77005, United States
| | - R Bruce Weisman
- Department of Chemistry and the Smalley-Curl Institute, Rice University, Houston, Texas 77005, United States
- Department of Materials Science and NanoEngineering, Rice University, Houston, Texas 77005, United States
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10
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Alwera S, Alwera V, Sehlangia S. An efficient method for the determination of enantiomeric purity of racemic amino acids using micellar chromatography, a green approach. Biomed Chromatogr 2020; 34:e4943. [PMID: 32621518 DOI: 10.1002/bmc.4943] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 06/25/2020] [Accepted: 07/02/2020] [Indexed: 12/12/2022]
Abstract
A simple, sensitive and green micellar liquid chromatographic method (RP-HPLC) was developed for enantioseparation of four racemic amino acids, namely, (RS)-selenomethionine, (RS)-methionine, (RS)-cysteine and (RS)-penicillamine. An aqueous solution of sodium dodecyl sulfate and Brij-35 was prepared and used as mobile phase for HPLC analysis. Activated esters of (S)-ibuprofen, (S)-ketoprofen and (S)-levofloxacin were synthesized by reacting them with N-hydroxybenzotriazole. These esters were characterized by UV, IR, 1 HNMR, HRMS and elemental analysis. These chiral reagents (activated esters) were used for the synthesis of diastereomeric derivatives of the chosen amino acids. The diastereomeric derivatives were separated on a C18 column by micellar liquid chromatography. Chromatographic conditions were optimized by varying concentration of surfactant in aqueous solution, and by varying the concentration and pH of the buffer. The green assessment score was calculated for the developed method (78, an excellent green method score). In addition, density functional theory calculations were performed, using Gaussian 09 rev. A.02 and hybrid density functional B3LYP with a 6-31G* basis set program, in order to develop lowest energy optimized structures of diastereomeric derivatives. The method was validated according to International Conference on Harmonization guidelines and the retention factor (k), selectivity factor (α), resolution factor (RS ) and limit of detection (0.295 ng ml-1 ) and limit of quantification (0.896 ng ml-1 ) were calculated.
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Affiliation(s)
- Shiv Alwera
- Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, India
| | - Vijay Alwera
- Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, India
| | - Suman Sehlangia
- School of Basic Science, Indian Institute of Technology Mandi, Mandi, H.P., India
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11
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Mandal AK, Wu X, Ferreira JS, Kim M, Powell LR, Kwon H, Groc L, Wang Y, Cognet L. Fluorescent sp 3 Defect-Tailored Carbon Nanotubes Enable NIR-II Single Particle Imaging in Live Brain Slices at Ultra-Low Excitation Doses. Sci Rep 2020; 10:5286. [PMID: 32210295 PMCID: PMC7093457 DOI: 10.1038/s41598-020-62201-w] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 03/05/2020] [Indexed: 01/08/2023] Open
Abstract
Cellular and tissue imaging in the second near-infrared window (NIR-II, ~1000–1350 nm) is advantageous for in vivo studies because of low light extinction by biological constituents at these wavelengths. However, deep tissue imaging at the single molecule sensitivity has not been achieved in the NIR-II window due to lack of suitable bio-probes. Single-walled carbon nanotubes have emerged as promising near-infrared luminescent molecular bio-probes; yet, their inefficient photoluminescence (quantum yield ~1%) drives requirements for sizeable excitation doses (~1–10 kW/cm2) that are significantly blue-shifted from the NIR-II region (<850 nm) and may thus ultimately compromise live tissue. Here, we show that single nanotube imaging can be achieved in live brain tissue using ultralow excitation doses (~0.1 kW/cm2), an order of magnitude lower than those currently used. To accomplish this, we synthesized fluorescent sp3-defect tailored (6,5) carbon nanotubes which, when excited at their first order excitonic transition (~985 nm) fluoresce brightly at ~1160 nm. The biocompatibility of these functionalized nanotubes, which are wrapped by encapsulation agent (phospholipid-polyethylene glycol), is demonstrated using standard cytotoxicity assays. Single molecule photophysical studies of these biocompatible nanotubes allowed us to identify the optimal luminescence properties in the context of biological imaging.
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Affiliation(s)
- Amit Kumar Mandal
- Université de Bordeaux, Laboratoire Photonique Numérique et Nanosciences, UMR 5298, 33400, Talence, France.,Institut d'Optique & CNRS, LP2N UMR 5298, 33400, Talence, France
| | - Xiaojian Wu
- Department of Chemistry and Biochemistry, University of Maryland, College Park, MD, 20742, United States
| | - Joana S Ferreira
- Université de Bordeaux, Interdisciplinary Institute for Neurosciences, UMR 5297, 33076, Bordeaux, France.,CNRS, IINS UMR 5297, 33076, Bordeaux, France
| | - Mijin Kim
- Department of Chemistry and Biochemistry, University of Maryland, College Park, MD, 20742, United States
| | - Lyndsey R Powell
- Department of Chemistry and Biochemistry, University of Maryland, College Park, MD, 20742, United States
| | - Hyejin Kwon
- Department of Chemistry and Biochemistry, University of Maryland, College Park, MD, 20742, United States
| | - Laurent Groc
- Université de Bordeaux, Interdisciplinary Institute for Neurosciences, UMR 5297, 33076, Bordeaux, France.,CNRS, IINS UMR 5297, 33076, Bordeaux, France
| | - YuHuang Wang
- Department of Chemistry and Biochemistry, University of Maryland, College Park, MD, 20742, United States
| | - Laurent Cognet
- Université de Bordeaux, Laboratoire Photonique Numérique et Nanosciences, UMR 5298, 33400, Talence, France. .,Institut d'Optique & CNRS, LP2N UMR 5298, 33400, Talence, France.
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12
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Paviolo C, Soria FN, Ferreira JS, Lee A, Groc L, Bezard E, Cognet L. Nanoscale exploration of the extracellular space in the live brain by combining single carbon nanotube tracking and super-resolution imaging analysis. Methods 2020; 174:91-99. [DOI: 10.1016/j.ymeth.2019.03.005] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Revised: 03/04/2019] [Accepted: 03/07/2019] [Indexed: 12/22/2022] Open
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13
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Hendler-Neumark A, Bisker G. Fluorescent Single-Walled Carbon Nanotubes for Protein Detection. SENSORS (BASEL, SWITZERLAND) 2019; 19:E5403. [PMID: 31817932 PMCID: PMC6960995 DOI: 10.3390/s19245403] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 12/02/2019] [Accepted: 12/05/2019] [Indexed: 01/06/2023]
Abstract
Nanosensors have a central role in recent approaches to molecular recognition in applications like imaging, drug delivery systems, and phototherapy. Fluorescent nanoparticles are particularly attractive for such tasks owing to their emission signal that can serve as optical reporter for location or environmental properties. Single-walled carbon nanotubes (SWCNTs) fluoresce in the near-infrared part of the spectrum, where biological samples are relatively transparent, and they do not photobleach or blink. These unique optical properties and their biocompatibility make SWCNTs attractive for a variety of biomedical applications. Here, we review recent advancements in protein recognition using SWCNTs functionalized with either natural recognition moieties or synthetic heteropolymers. We emphasize the benefits of the versatile applicability of the SWCNT sensors in different systems ranging from single-molecule level to in-vivo sensing in whole animal models. Finally, we discuss challenges, opportunities, and future perspectives.
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Affiliation(s)
| | - Gili Bisker
- Department of Biomedical Engineering, Faculty of Engineering, Tel-Aviv University, Tel Aviv 6997801, Israel;
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14
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Godin AG, Setaro A, Gandil M, Haag R, Adeli M, Reich S, Cognet L. Photoswitchable single-walled carbon nanotubes for super-resolution microscopy in the near-infrared. SCIENCE ADVANCES 2019; 5:eaax1166. [PMID: 31799400 PMCID: PMC6868679 DOI: 10.1126/sciadv.aax1166] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2019] [Accepted: 08/27/2019] [Indexed: 05/29/2023]
Abstract
The design of single-molecule photoswitchable emitters was the first milestone toward the advent of single-molecule localization microscopy, setting a new paradigm in the field of optical imaging. Several photoswitchable emitters have been developed, but they all fluoresce in the visible or far-red ranges, missing the desirable near-infrared window where biological tissues are most transparent. Moreover, photocontrol of individual emitters in the near-infrared would be highly desirable for elementary optical molecular switches or information storage elements since most communication data transfer protocols are established in this spectral range. Here, we introduce a type of hybrid nanomaterials consisting of single-wall carbon nanotubes covalently functionalized with photoswitching molecules that are used to control the intrinsic luminescence of the single nanotubes in the near-infrared (beyond 1 μm). Through the control of photoswitching, we demonstrate super-localization imaging of nanotubes unresolved by diffraction-limited microscopy.
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Affiliation(s)
- Antoine G. Godin
- Université de Bordeaux, Laboratoire Photonique Numérique et Nanosciences, UMR 5298, F-33400 Talence, France
- Institut d’Optique and CNRS, LP2N UMR 5298, F-33400 Talence, France
- Centre de recherche CERVO, Québec, Canada
- Department of Psychiatry and Neuroscience, Université Laval, Québec, Canada
| | - Antonio Setaro
- Department of Physics, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
| | - Morgane Gandil
- Université de Bordeaux, Laboratoire Photonique Numérique et Nanosciences, UMR 5298, F-33400 Talence, France
- Institut d’Optique and CNRS, LP2N UMR 5298, F-33400 Talence, France
| | - Rainer Haag
- Institute of Organic Chemistry and Biochemistry, Freie Universität Berlin, Takustraße 3, 14195 Berlin, Germany
| | - Mohsen Adeli
- Institute of Organic Chemistry and Biochemistry, Freie Universität Berlin, Takustraße 3, 14195 Berlin, Germany
- Department of Chemistry, Faculty of Science, Lorestan University, Khorram Abad, Iran
| | - Stephanie Reich
- Department of Physics, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
| | - Laurent Cognet
- Université de Bordeaux, Laboratoire Photonique Numérique et Nanosciences, UMR 5298, F-33400 Talence, France
- Institut d’Optique and CNRS, LP2N UMR 5298, F-33400 Talence, France
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15
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Gillen AJ, Kupis-Rozmysłowicz J, Gigli C, Schuergers N, Boghossian AA. Xeno Nucleic Acid Nanosensors for Enhanced Stability Against Ion-Induced Perturbations. J Phys Chem Lett 2018; 9:4336-4343. [PMID: 30004705 DOI: 10.1021/acs.jpclett.8b01879] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The omnipresence of salts in biofluids creates a pervasive challenge in designing sensors suitable for in vivo applications. Fluctuations in ion concentrations have been shown to affect the sensitivity and selectivity of optical sensors based on single-walled carbon nanotubes wrapped with single-stranded DNA (ssDNA-SWCNTs). We herein observe fluorescence wavelength shifting for ssDNA-SWCNT-based optical sensors in the presence of divalent cations at concentrations above 3.5 mM. In contrast, no shifting was observed for concentrations up to 350 mM for sensors bioengineered with increased rigidity using xeno nucleic acids (XNAs). Transient fluorescence measurements reveal distinct optical transitions for ssDNA- and XNA-based wrappings during ion-induced conformation changes, with XNA-based sensors showing increased permanence in conformational and signal stability. This demonstration introduces synthetic biology as a complementary means for enhancing nanotube optoelectronic behavior, unlocking previously unexplored possibilities for developing nanobioengineered sensors with augmented capabilities.
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Affiliation(s)
- Alice J Gillen
- École Polytechnique Fédérale de Lausanne (EPFL) , Lausanne 1015 , Switzerland
| | | | - Carlo Gigli
- Politecnico di Torino , Turin 10129 , Italy
- Université Denis Diderot (Paris VII) , Paris 75013 , France
| | - Nils Schuergers
- École Polytechnique Fédérale de Lausanne (EPFL) , Lausanne 1015 , Switzerland
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16
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Danné N, Kim M, Godin AG, Kwon H, Gao Z, Wu X, Hartmann NF, Doorn SK, Lounis B, Wang Y, Cognet L. Ultrashort Carbon Nanotubes That Fluoresce Brightly in the Near-Infrared. ACS NANO 2018; 12:6059-6065. [PMID: 29889499 DOI: 10.1021/acsnano.8b02307] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The intrinsic near-infrared photoluminescence observed in long single-walled carbon nanotubes is known to be quenched in ultrashort nanotubes due to their tiny size as compared to the exciton diffusion length in these materials (>100 nm). Here, we show that intense photoluminescence can be created in ultrashort nanotubes (∼40 nm length) upon incorporation of exciton-trapping sp3 defect sites. Using super-resolution photoluminescence imaging at <25 nm resolution, we directly show the preferential localization of excitons at the nanotube ends, which separate by less than 40 nm and behave as independent emitters. This unexpected observation opens the possibility to synthesize fluorescent ultrashort nanotubes-a goal that has been long thought impossible-for bioimaging applications, where bright near-infrared photoluminescence and small size are highly desirable, and for quantum information science, where high quality and well-controlled near-infrared single photon emitters are needed.
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Affiliation(s)
- Noémie Danné
- Laboratoire Photonique Numérique et Nanosciences , Univ. Bordeaux , UMR 5298, F-33400 Talence , France
- Institut d'Optique & CNRS , LP2N UMR 5298, F-33400 Talence , France
| | - Mijin Kim
- Department of Chemistry and Biochemistry , University of Maryland , College Park , Maryland 20742 , United States
| | - Antoine G Godin
- Laboratoire Photonique Numérique et Nanosciences , Univ. Bordeaux , UMR 5298, F-33400 Talence , France
- Institut d'Optique & CNRS , LP2N UMR 5298, F-33400 Talence , France
| | - Hyejin Kwon
- Department of Chemistry and Biochemistry , University of Maryland , College Park , Maryland 20742 , United States
| | - Zhenghong Gao
- Laboratoire Photonique Numérique et Nanosciences , Univ. Bordeaux , UMR 5298, F-33400 Talence , France
- Institut d'Optique & CNRS , LP2N UMR 5298, F-33400 Talence , France
| | - Xiaojian Wu
- Department of Chemistry and Biochemistry , University of Maryland , College Park , Maryland 20742 , United States
| | - Nicolai F Hartmann
- Center for Integrated Nanotechnologies, Materials Physics and Applications Division , Los Alamos National Laboratory , Los Alamos , New Mexico 87545 United States
| | - Stephen K Doorn
- Center for Integrated Nanotechnologies, Materials Physics and Applications Division , Los Alamos National Laboratory , Los Alamos , New Mexico 87545 United States
| | - Brahim Lounis
- Laboratoire Photonique Numérique et Nanosciences , Univ. Bordeaux , UMR 5298, F-33400 Talence , France
- Institut d'Optique & CNRS , LP2N UMR 5298, F-33400 Talence , France
| | - YuHuang Wang
- Department of Chemistry and Biochemistry , University of Maryland , College Park , Maryland 20742 , United States
- Maryland NanoCenter , University of Maryland , College Park , Maryland 20742 , United States
| | - Laurent Cognet
- Laboratoire Photonique Numérique et Nanosciences , Univ. Bordeaux , UMR 5298, F-33400 Talence , France
- Institut d'Optique & CNRS , LP2N UMR 5298, F-33400 Talence , France
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17
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Advances in surface-coated single-walled carbon nanotubes as near-infrared photoluminescence emitters for single-particle tracking applications in biological environments. Polym J 2018. [DOI: 10.1038/s41428-018-0052-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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