1
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Stenspil SG, Laursen BW. Photophysics of fluorescent nanoparticles based on organic dyes - challenges and design principles. Chem Sci 2024; 15:8625-8638. [PMID: 38873083 PMCID: PMC11168078 DOI: 10.1039/d4sc01352b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Accepted: 05/06/2024] [Indexed: 06/15/2024] Open
Abstract
Fluorescent nanoparticles have become attractive for bioanalysis and imaging, due to their high brightness and photostability. Many different optical materials have been applied in fluorescent nanoparticles with a broad range of properties and characteristics. One appealing approach is the incorporation of molecular organic fluorophores in nanoparticles with the intention of transferring their known attractive solution-state properties directly to the nanoparticles. However, as molecular dyes are packed closely together in the nanoparticles their interactions most often result in fluorescence quenching and change in spectral properties making this approach challenging. In this perspective we will first discuss the origins of quenching and spectral shifts observed in dye based nanoparticles. On this background, we will then describe various designs of dye based NPs and how they address the challenges of dye-dye interactions and quenching. Our aim is to provide a general framework for understanding the supramolecular mechanisms that determine the photophysics of dye based nanoparticles. This framework of molecular photophysics and its relation to the internal structure of dye based nanoparticles can hopefully serve to assist rational design and optimization of new and improved dye based nanoparticles.
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Affiliation(s)
- Stine G Stenspil
- Nano-Science Center & Department of Chemistry, University of Copenhagen Universitetsparken 5 2100 København Ø Denmark
| | - Bo W Laursen
- Nano-Science Center & Department of Chemistry, University of Copenhagen Universitetsparken 5 2100 København Ø Denmark
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2
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Liu F, Anton N, Niko Y, Klymchenko AS. Controlled Release and Capture of Aldehydes by Dynamic Imine Chemistry in Nanoemulsions: From Delivery to Detoxification. ACS APPLIED BIO MATERIALS 2023; 6:246-256. [PMID: 36516427 DOI: 10.1021/acsabm.2c00861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Current biomedical applications of nanocarriers are focused on drug delivery, where encapsulated cargo is released in the target tissues under the control of external stimuli. Here, we propose a very different approach, where the active toxic molecules are removed from biological tissues by the nanocarrier. It is based on the drug-sponge concept, where specific molecules are captured by the lipid nanoemulsion (NE) droplets due to dynamic covalent chemistry inside their oil core. To this end, we designed a highly lipophilic amine (LipoAmine) capable of reacting with a free cargo-aldehyde (fluorescent dye and 4-hydroxynonenal toxin) directly inside lipid NEs, yielding a lipophilic imine conjugate well encapsulated in the oil core. The formation of imine bonds was first validated using a push-pull pyrene aldehyde dye, which changes its emission color during the reaction. The conjugate formation was independently confirmed by mass spectrometry. As a result, LipoAmine-loaded NEs spontaneously loaded cargo-aldehydes, yielding formulations stable against leakage at pH 7.4, which can further release the cargo in a low pH range (4-6) in solutions and living cells. Using fluorescence microscopy, we showed that LipoAmine NEs can extract pyrene aldehyde dye from cells as well as from an epithelial tissue (chicken skin). Moreover, successful extraction from cells was also achieved for a highly toxic aliphatic aldehyde 4-hydroxynonenal, which allowed obtaining the proof of concept for detoxification of living cells. Taken together, these results show that the dynamic imine chemistry inside NEs can be used to develop detoxification platforms.
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Affiliation(s)
- Fei Liu
- Laboratoire de Bioimagerie et Pathologies, UMR 7021 CNRS, Université de Strasbourg, 74 route du Rhin, Illkirch 67401, France.,INSERM UMR 1260, Regenerative Nanomedicine (RNM), CRBS, Université de Strasbourg, Strasbourg 67000, France
| | - Nicolas Anton
- INSERM UMR 1260, Regenerative Nanomedicine (RNM), CRBS, Université de Strasbourg, Strasbourg 67000, France
| | - Yosuke Niko
- Research and Education Faculty, Multidisciplinary Science Cluster, Interdisciplinary Science Unit, Kochi University, 2-5-1, Akebono-cho, Kochi-shi, Kochi 780-8520, Japan
| | - Andrey S Klymchenko
- Laboratoire de Bioimagerie et Pathologies, UMR 7021 CNRS, Université de Strasbourg, 74 route du Rhin, Illkirch 67401, France
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3
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Wang X, Anton H, Vandamme T, Anton N. Updated insight into the characterization of nano-emulsions. Expert Opin Drug Deliv 2023; 20:93-114. [PMID: 36453201 DOI: 10.1080/17425247.2023.2154075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
INTRODUCTION In most of the studies, nano-emulsion characterization is limited to their size distribution and zeta potential. In this review, we present an updated insight of the characterization methods of nano-emulsions, including new or unconventional experimental approaches to explore in depth the nano-emulsion properties. AREA COVERED We propose an overview of all the main techniques used to characterize nano-emulsions, including the most classical ones, up to in vitro, ex vivo and in vivo evaluation. Innovative approaches are then presented in the second part of the review that presents innovative, experimental techniques less known in the field of nano-emulsion such as the nanoparticle tracking analysis, small-angle X-ray scattering, Raman spectroscopy, and nuclear magnetic resonance. Finally, in the last part we discuss the use of lipophilic fluorescent probes and imaging techniques as an emerging tool to understand the nano-emulsion droplet stability, surface decoration, release mechanisms, and in vivo fate. EXPERT OPINION This review is mostly intended for a broad readership and provides key tools regarding the choice of the approach to characterize nano-emulsions. Innovative and uncommon methods will be precious to disclose the information potentially reachable behind a formulation of nano-emulsions, not always known in first intention and with conventional methods.
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Affiliation(s)
- Xinyue Wang
- Université de Strasbourg, CNRS, CAMB UMR 7199, F-67000 Strasbourg, France
| | - Halina Anton
- Université de Strasbourg, CNRS, Laboratoire de Bioimagerie et Pathologies UMR 7021, F-67000 Strasbourg, France
| | - Thierry Vandamme
- Université de Strasbourg, INSERM, Regenerative nanomedicine UMR 1260, Centre de Recherche en Biomédecine de Strasbourg (CRBS), F-67000 Strasbourg, France
| | - Nicolas Anton
- Université de Strasbourg, INSERM, Regenerative nanomedicine UMR 1260, Centre de Recherche en Biomédecine de Strasbourg (CRBS), F-67000 Strasbourg, France
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4
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Morla-Folch J, Vargas-Nadal G, Fuentes E, Illa-Tuset S, Köber M, Sissa C, Pujals S, Painelli A, Veciana J, Faraudo J, Belfield KD, Albertazzi L, Ventosa N. Ultrabright Föster Resonance Energy Transfer Nanovesicles: The Role of Dye Diffusion. CHEMISTRY OF MATERIALS : A PUBLICATION OF THE AMERICAN CHEMICAL SOCIETY 2022; 34:8517-8527. [PMID: 36248229 PMCID: PMC9558306 DOI: 10.1021/acs.chemmater.2c00384] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The development of contrast agents based on fluorescent nanoparticles with high brightness and stability is a key factor to improve the resolution and signal-to-noise ratio of current fluorescence imaging techniques. However, the design of bright fluorescent nanoparticles remains challenging due to fluorescence self-quenching at high concentrations. Developing bright nanoparticles showing FRET emission adds several advantages to the system, including an amplified Stokes shift, the possibility of ratiometric measurements, and of verifying the nanoparticle stability. Herein, we have developed Förster resonance energy transfer (FRET)-based nanovesicles at different dye loadings and investigated them through complementary experimental techniques, including conventional fluorescence spectroscopy and super-resolution microscopy supported by molecular dynamics calculations. We show that the optical properties can be modulated by dye loading at the nanoscopic level due to the dye's molecular diffusion in fluid-like membranes. This work shows the first proof of a FRET pair dye's dynamism in liquid-like membranes, resulting in optimized nanoprobes that are 120-fold brighter than QDot 605 and exhibit >80% FRET efficiency with vesicle-to-vesicle variations that are mostly below 10%.
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Affiliation(s)
- Judit Morla-Folch
- Institut
de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus UAB, Bellaterra, Catalonia 08193, Spain
- CIBER
de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN)Instituto de Salud Carlos III. Bellaterra, 08193, Spain
| | - Guillem Vargas-Nadal
- Institut
de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus UAB, Bellaterra, Catalonia 08193, Spain
- CIBER
de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN)Instituto de Salud Carlos III. Bellaterra, 08193, Spain
| | - Edgar Fuentes
- Nanoscopy
for Nanomedicine Group, Institute for Bioengineering
of Catalonia (IBEC) C\ Baldiri Reixac 15-21, Helix Building, Barcelona, 08028, Catalonia, Spain
| | - Sílvia Illa-Tuset
- Institut
de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus UAB, Bellaterra, Catalonia 08193, Spain
| | - Mariana Köber
- Institut
de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus UAB, Bellaterra, Catalonia 08193, Spain
- CIBER
de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN)Instituto de Salud Carlos III. Bellaterra, 08193, Spain
| | - Cristina Sissa
- Dipartimento
di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università di Parma, Parco Area delle Scienze 17/A, Parma, 43124, Italy
| | - Silvia Pujals
- Nanoscopy
for Nanomedicine Group, Institute for Bioengineering
of Catalonia (IBEC) C\ Baldiri Reixac 15-21, Helix Building, Barcelona, 08028, Catalonia, Spain
| | - Anna Painelli
- Dipartimento
di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università di Parma, Parco Area delle Scienze 17/A, Parma, 43124, Italy
| | - Jaume Veciana
- Institut
de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus UAB, Bellaterra, Catalonia 08193, Spain
- CIBER
de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN)Instituto de Salud Carlos III. Bellaterra, 08193, Spain
| | - Jordi Faraudo
- Institut
de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus UAB, Bellaterra, Catalonia 08193, Spain
| | - Kevin D. Belfield
- Department
of Chemistry and Environmental Science, College of Science and Liberal
Arts, New Jersey Institute of Technology
(NJIT) 323 Martin Luther King, Jr., Blvd., Newark, New Jersey 07102, United States
| | - Lorenzo Albertazzi
- Nanoscopy
for Nanomedicine Group, Institute for Bioengineering
of Catalonia (IBEC) C\ Baldiri Reixac 15-21, Helix Building, Barcelona, 08028, Catalonia, Spain
- Molecular
Biosensing for Medical Diagnostics Group, Biomedical Engineering, Technology Eindhoven University of Technology (TUE) Eindhoven, 5612 AZ, The Netherlands
| | - Nora Ventosa
- Institut
de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus UAB, Bellaterra, Catalonia 08193, Spain
- CIBER
de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN)Instituto de Salud Carlos III. Bellaterra, 08193, Spain
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5
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Study of the spontaneous nano-emulsification process with different octadecyl succinic anhydride derivatives. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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6
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Wang X, Bou S, Klymchenko AS, Anton N, Collot M. Ultrabright Green-Emitting Nanoemulsions Based on Natural Lipids-BODIPY Conjugates. NANOMATERIALS 2021; 11:nano11030826. [PMID: 33807096 PMCID: PMC8005018 DOI: 10.3390/nano11030826] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 03/19/2021] [Accepted: 03/20/2021] [Indexed: 01/08/2023]
Abstract
Nanoemulsions (NEs) are water-dispersed oil droplets that constitute stealth biocompatible nanomaterials. NEs can reach an impressive degree of fluorescent brightness owing to their oily core that can encapsulate a large number of fluorophores on the condition the latter are sufficiently hydrophobic and oil-soluble. BODIPYs are among the brightest green emitting fluorophores and as neutral molecules possess high lipophilicity. Herein, we synthesized three different natural lipid-BODIPY conjugates by esterification of an acidic BODIPY by natural lipids, namely: α-tocopherol (vitamin E), cholesterol, and stearyl alcohol. The new BODIPY conjugates were characterized in solvents and oils before being encapsulated in NEs at various concentrations. The physical (size, stability over time, leakage) and photophysical properties (absorption and emission wavelength, brightness, photostability) are reported and showed that the nature of the lipid anchor and the nature of the oil used for emulsification greatly influence the properties of the bright NEs.
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Affiliation(s)
- Xinyue Wang
- Faculté de Pharmacie d’Illkirch, Université de Strasbourg, CNRS, CAMB UMR 7199, F-67000 Strasbourg, France;
- INSERM (French National Institute of Health and Medical Research), Université de Strasbourg, Regenerative Nanomedicine (RNM), FMTS, UMR 1260, F-67000 Strasbourg, France
| | - Sophie Bou
- Faculté de Pharmacie d’Illkirch, Université de Strasbourg, CNRS, LPB 7021, F-67000 Strasbourg, France; (S.B.); (A.S.K.)
| | - Andrey S. Klymchenko
- Faculté de Pharmacie d’Illkirch, Université de Strasbourg, CNRS, LPB 7021, F-67000 Strasbourg, France; (S.B.); (A.S.K.)
| | - Nicolas Anton
- Faculté de Pharmacie d’Illkirch, Université de Strasbourg, CNRS, CAMB UMR 7199, F-67000 Strasbourg, France;
- INSERM (French National Institute of Health and Medical Research), Université de Strasbourg, Regenerative Nanomedicine (RNM), FMTS, UMR 1260, F-67000 Strasbourg, France
- Correspondence: (N.A.); (M.C.)
| | - Mayeul Collot
- Faculté de Pharmacie d’Illkirch, Université de Strasbourg, CNRS, LPB 7021, F-67000 Strasbourg, France; (S.B.); (A.S.K.)
- Correspondence: (N.A.); (M.C.)
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7
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Belcastro E, Rehman AU, Remila L, Park SH, Gong DS, Anton N, Auger C, Lefebvre O, Goetz JG, Collot M, Klymchenko AS, Vandamme TF, Schini-Kerth VB. Fluorescent nanocarriers targeting VCAM-1 for early detection of senescent endothelial cells. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2021; 34:102379. [PMID: 33713860 DOI: 10.1016/j.nano.2021.102379] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2020] [Revised: 01/29/2021] [Accepted: 02/20/2021] [Indexed: 10/21/2022]
Abstract
Endothelial senescence has been identified as an early event in the development of endothelial dysfunction, a hallmark of cardiovascular disease. This study developed theranostic nanocarriers (NC) decorated with VCAM-1 antibodies (NC-VCAM-1) in order to target cell surface VCAM-1, which is overexpressed in senescent endothelial cells (ECs) for diagnostic and therapeutic purposes. Incubation of Ang II-induced premature senescent ECs or replicative senescent ECs with NC-VCAM-1 loaded with lipophilic fluorescent dyes showed higher fluorescence signals than healthy EC, which was dependent on the NC size and VCAM-1 antibodies concentration, and not observed following masking of VCAM-1. NC loaded with omega 3 polyunsaturated fatty acid (NC-EPA:DHA6:1) were more effective than native EPA:DHA 6:1 to prevent Ang II-induced VCAM-1 and p53 upregulation, and SA-β-galactosidase activity in coronary artery segments. These theranostic NC might be of interest to evaluate the extent and localization of endothelial senescence and to prevent pro-senescent endothelial responses.
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Affiliation(s)
- Eugenia Belcastro
- INSERM (French National Institute of Health and Medical Research), UMR 1260, Regenerative Nanomedicine, Faculty of Pharmacy
| | - Asad Ur Rehman
- University of Strasbourg, CNRS, CAMB UMR 7199, Strasbourg, France
| | - Lamia Remila
- INSERM (French National Institute of Health and Medical Research), UMR 1260, Regenerative Nanomedicine, Faculty of Pharmacy
| | - Sin-Hee Park
- INSERM (French National Institute of Health and Medical Research), UMR 1260, Regenerative Nanomedicine, Faculty of Pharmacy
| | - Dal Seong Gong
- INSERM (French National Institute of Health and Medical Research), UMR 1260, Regenerative Nanomedicine, Faculty of Pharmacy
| | - Nicolas Anton
- INSERM (French National Institute of Health and Medical Research), UMR 1260, Regenerative Nanomedicine, Faculty of Pharmacy; University of Strasbourg, CNRS, CAMB UMR 7199, Strasbourg, France
| | - Cyril Auger
- INSERM (French National Institute of Health and Medical Research), UMR 1260, Regenerative Nanomedicine, Faculty of Pharmacy
| | | | | | - Mayeul Collot
- CNRS UMR 7213, Laboratory of Biophotonics and Pharmacology, University of Strasbourg, Strasbourg, France
| | - Andrey S Klymchenko
- CNRS UMR 7213, Laboratory of Biophotonics and Pharmacology, University of Strasbourg, Strasbourg, France
| | - Thierry F Vandamme
- INSERM (French National Institute of Health and Medical Research), UMR 1260, Regenerative Nanomedicine, Faculty of Pharmacy; University of Strasbourg, CNRS, CAMB UMR 7199, Strasbourg, France
| | - Valérie B Schini-Kerth
- INSERM (French National Institute of Health and Medical Research), UMR 1260, Regenerative Nanomedicine, Faculty of Pharmacy.
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8
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Collot M. Recent advances in dioxaborine-based fluorescent materials for bioimaging applications. MATERIALS HORIZONS 2021; 8:501-514. [PMID: 34821266 DOI: 10.1039/d0mh01186j] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Fluorescent materials are continuously contributing to important advances in the field of bioimaging. Among these materials, dioxaborine-based fluorescent materials (DBFM) are arousing growing interest. Due to their rigid structures conferred by a cyclic boron complex, DBFM possess appealing photophysical properties including high extinction coefficients and quantum yields as well as emission in the near infrared, enhanced photostability and high two-photon absorption. We herein discuss the recent advances of DBFM that found use in bioimaging applications. This review covers the development of fluorescent molecular probes for biomolecules (DNA, proteins), small molecules (cysteine, H2O2, oxygen), ions and the environment (polarity, viscosity) as well as polymers and nanomaterials used in bioimaging. This review aims at providing a comprehensive and critical insight on DBFM by highlighting the assets of these promising materials in bioimaging but also by pointing out their limitations that would require further developments.
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Affiliation(s)
- Mayeul Collot
- Laboratoire de Bioimagerie et Pathologies, UMR 7021, CNRS/Université de Strasbourg, 74 route du Rhin, 67401 Illkirch-Graffenstaden, France.
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9
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Klymchenko AS, Liu F, Collot M, Anton N. Dye-Loaded Nanoemulsions: Biomimetic Fluorescent Nanocarriers for Bioimaging and Nanomedicine. Adv Healthc Mater 2021; 10:e2001289. [PMID: 33052037 DOI: 10.1002/adhm.202001289] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 09/21/2020] [Indexed: 12/16/2022]
Abstract
Lipid nanoemulsions (NEs), owing to their controllable size (20 to 500 nm), stability and biocompatibility, are now frequently used in various fields, such as food, cosmetics, pharmaceuticals, drug delivery, and even as nanoreactors for chemical synthesis. Moreover, being composed of components generally recognized as safe (GRAS), they can be considered as "green" nanoparticles that mimic closely lipoproteins and intracellular lipid droplets. Therefore, they attracted attention as carriers of drugs and fluorescent dyes for both bioimaging and studying the fate of nanoemulsions in cells and small animals. In this review, the composition of dye-loaded NEs, methods for their preparation, and emerging biological applications are described. The design of bright fluorescent NEs with high dye loading and minimal aggregation-caused quenching (ACQ) is focused on. Common issues including dye leakage and NEs stability are discussed, highlighting advanced techniques for their characterization, such as Förster resonance energy transfer (FRET) and fluorescence correlation spectroscopy (FCS). Attempts to functionalize NEs surface are also discussed. Thereafter, biological applications for bioimaging and single-particle tracking in cells and small animals as well as biomedical applications for photodynamic therapy are described. Finally, challenges and future perspectives of fluorescent NEs are discussed.
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Affiliation(s)
- Andrey S. Klymchenko
- Laboratory of Biophotonic and Pathologies CNRS UMR 7021 Université de Strasbourg Faculté de Pharmacie, 74, Route du Rhin Illkirch 67401 France
| | - Fei Liu
- Laboratory of Biophotonic and Pathologies CNRS UMR 7021 Université de Strasbourg Faculté de Pharmacie, 74, Route du Rhin Illkirch 67401 France
- Université de Strasbourg CNRS CAMB UMR 7199 Strasbourg F‐67000 France
| | - Mayeul Collot
- Laboratory of Biophotonic and Pathologies CNRS UMR 7021 Université de Strasbourg Faculté de Pharmacie, 74, Route du Rhin Illkirch 67401 France
| | - Nicolas Anton
- Université de Strasbourg CNRS CAMB UMR 7199 Strasbourg F‐67000 France
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10
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Wang X, Collot M, Omran Z, Vandamme TF, Klymchenko A, Anton N. Further insights into release mechanisms from nano-emulsions, assessed by a simple fluorescence-based method. J Colloid Interface Sci 2020; 578:768-778. [DOI: 10.1016/j.jcis.2020.06.028] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Revised: 06/04/2020] [Accepted: 06/07/2020] [Indexed: 10/24/2022]
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11
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Ding S, Mustafa B, Anton N, Serra CA, Chan-Seng D, Vandamme TF. Production of lipophilic nanogels by spontaneous emulsification. Int J Pharm 2020; 585:119481. [PMID: 32473375 DOI: 10.1016/j.ijpharm.2020.119481] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 05/03/2020] [Accepted: 05/25/2020] [Indexed: 11/28/2022]
Abstract
Nanosized gel particles, so-called nanogels, have attracted substantial interest in different application fields, thanks to their controllable and three-dimensional physical structure, good mechanical properties and potential biocompatibility. Literature reports many technologies for their preparation and design, however a recurrent limitation remains in their broad size distributions as well as in the poor size control. Therefore, the monodisperse and size-controlled nanogels preparation by simple process -like emulsification- is a real challenge still in abeyance to date. In this study we propose an original low energy emulsification approach for the production of monodisperse nanogels, for which the size can be finely controlled in the range 30 to 200 nm. The principle lies in the fabrication of a direct nano-emulsion containing both oil (medium chain triglycerides) and a bi-functional acrylate monomer. The nanogels are thus formed in situ upon UV irradiation of the droplet suspension. Advantage of such modification of the oil nano-carriers are the potential modulation of the release of encapsulated drugs, as a function of the density and/or properties of the polymer chain network entrapped in the oil nano-droplets. This hypothesis was confirmed using a model of hydrophobic drug -ketoprofen- entrapped into the nanogels particles, along with the study of the release profile, carried out in function of the nature of the monomers, density of polymer chains, and different formulation parameters.
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Affiliation(s)
- Shukai Ding
- Université de Strasbourg, CNRS, Institut Charles Sadron UPR 22, F-67000 Strasbourg, France; Shaanxi University of Science & Technology, Institute of Atomic and Molecular Science, CN-710021 Xi'an, Shaanxi, China
| | - Bilal Mustafa
- Université de Strasbourg, CNRS, Institut Charles Sadron UPR 22, F-67000 Strasbourg, France; Université de Strasbourg, CNRS, CAMB UMR 7199, F-67000 Strasbourg, France; Faculty of Pharmacy, University of Sindh, Jamshoro, Sindh, Pakistan
| | - Nicolas Anton
- Université de Strasbourg, CNRS, CAMB UMR 7199, F-67000 Strasbourg, France.
| | - Christophe A Serra
- Université de Strasbourg, CNRS, Institut Charles Sadron UPR 22, F-67000 Strasbourg, France.
| | - Delphine Chan-Seng
- Université de Strasbourg, CNRS, Institut Charles Sadron UPR 22, F-67000 Strasbourg, France
| | - Thierry F Vandamme
- Université de Strasbourg, CNRS, CAMB UMR 7199, F-67000 Strasbourg, France.
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12
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Bou S, Wang X, Anton N, Bouchaala R, Klymchenko AS, Collot M. Lipid-core/polymer-shell hybrid nanoparticles: synthesis and characterization by fluorescence labeling and electrophoresis. SOFT MATTER 2020; 16:4173-4181. [PMID: 32286601 DOI: 10.1039/d0sm00077a] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Among the lipid nanoparticles, lipid polymer hybrid nanoparticles (HNPs) composed of an oily core and a polymeric shell display interesting features as efficient drug carriers due to the high loading capability of the oil phase and the stability and surface functionalization of the polymer shell. Herein, we formulated lipid-core/polymer-shell hybrid nanoparticles (HNPs) using a simple nanoprecipitation method involving Vitamin E Acetate (VEA) as the oily core and a tailor-made amphiphilic polymer as a wrapping shell. The fluorescence labeling of the oil, using a newly developed green fluorogenic BODIPY tracker, and of the polymer using a covalent attachment of a red emitting rhodamine was done to assess the formation, the composition and the stability of these new hybrid nanoparticles using dual color electrophoresis gel analysis. This technique, combined to conventional DLS and electronic microscopy analysis, allowed us to quickly determine that 20 wt% of the polymer was an optimal ratio for obtaining stable HNPs by nanoprecipiation. Finally, we showed that using different polymeric shells, various HNPs can be obtained and finely discriminated using a combined approach of electrophoresis and two-color labeling.
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Affiliation(s)
- Sophie Bou
- Laboratoire de Bioimagerie et Pathologies, UMR 7021 CNRS, University of Strasbourg, France.
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13
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Bou S, Wang X, Anton N, Klymchenko AS, Collot M. Near infrared fluorogenic probe as a prodrug model for evaluating cargo release by nanoemulsions. J Mater Chem B 2020; 8:5938-5944. [DOI: 10.1039/d0tb00783h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
We developed Pro-HD, a NIR fluorogenic prodrug model. We evaluated its efficient cell delivery using biocompatible nanoemulsions and its hydrolysis into the fluorescent HD drug model once delivered in cancer cells.
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Affiliation(s)
- Sophie Bou
- Laboratory of Biophotonic and Pathologies
- CNRS UMR 7021
- Université de Strasbourg
- Faculté de Pharmacie
- 67401 Illkirch
| | - Xinyue Wang
- Université de Strasbourg
- CNRS
- CAMB UMR 7199
- F-67000 Strasbourg
- France
| | - Nicolas Anton
- Université de Strasbourg
- CNRS
- CAMB UMR 7199
- F-67000 Strasbourg
- France
| | - Andrey S. Klymchenko
- Laboratory of Biophotonic and Pathologies
- CNRS UMR 7021
- Université de Strasbourg
- Faculté de Pharmacie
- 67401 Illkirch
| | - Mayeul Collot
- Laboratory of Biophotonic and Pathologies
- CNRS UMR 7021
- Université de Strasbourg
- Faculté de Pharmacie
- 67401 Illkirch
| |
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