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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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Tkachenko V, Kunemann P, Malval JP, Petithory T, Pieuchot L, Vidal L, Chemtob A. Kinetically stable sub-50 nm fluorescent block copolymer nanoparticles via photomediated RAFT dispersion polymerization for cellular imaging. NANOSCALE 2022; 14:534-545. [PMID: 34935832 DOI: 10.1039/d1nr04934h] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Self-assembled block copolymer nanoparticles (NPs) have emerged as major potential nanoscale vehicles for fluorescence bioimaging. The preparation of NPs with high yields possessing high kinetic stability to prevent the leakage of fluorophore molecules is crucial to their practical implementation. Here, we report a photomediated RAFT polymerization-induced self-assembly (PISA) yielding uniform and nanosized poly((oligo(ethylene glycol) acrylate)-block-poly(benzyl acrylate) particles (POEGA-b-PBzA) with a concentration of 22 wt%, over 20 times more than with micellization and nanoprecipitation. The spherical diblock copolymer nanoparticles have an average size of 10-50 nm controllable through the degree of polymerization of the stabilizing POEGA block. Subsequent dialysis against water and swelling with Nile red solution led to highly stable fluorescent NPs able to withstand the changes in concentration, ionic strength, pH or temperature. A PBzA/water interfacial tension of 48.6 mN m-1 hinders the exchange between copolymer chains, resulting in the trapping of NPs in a "kinetically frozen" state responsible for high stability. A spectroscopic study combining fluorescence and UV-vis absorption agrees with a preferential distribution of fluorophores in the outer POEGEA shell despite its hydrophobic nature. Nile red-doped POEGA-b-PBzA micelles without initiator residues and unimers but with high structural stability turn out to be noncytotoxic, and can be used for the optical imaging of cells. Real-time confocal fluorescence microscopy shows a fast cellular uptake using C2C12 cell lines in minutes, and a preferential localization in the perinuclear region, in particular in the vesicles.
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Affiliation(s)
- Vitalii Tkachenko
- Université de Haute-Alsace, CNRS, IS2M UMR7361, F-68100 Mulhouse, France.
- Université de Strasbourg, France
| | - Philippe Kunemann
- Université de Haute-Alsace, CNRS, IS2M UMR7361, F-68100 Mulhouse, France.
- Université de Strasbourg, France
| | - Jean Pierre Malval
- Université de Haute-Alsace, CNRS, IS2M UMR7361, F-68100 Mulhouse, France.
- Université de Strasbourg, France
| | - Tatiana Petithory
- Université de Haute-Alsace, CNRS, IS2M UMR7361, F-68100 Mulhouse, France.
- Université de Strasbourg, France
| | - Laurent Pieuchot
- Université de Haute-Alsace, CNRS, IS2M UMR7361, F-68100 Mulhouse, France.
- Université de Strasbourg, France
| | - Loïc Vidal
- Université de Haute-Alsace, CNRS, IS2M UMR7361, F-68100 Mulhouse, France.
- Université de Strasbourg, France
| | - Abraham Chemtob
- Université de Haute-Alsace, CNRS, IS2M UMR7361, F-68100 Mulhouse, France.
- Université de Strasbourg, France
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3
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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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4
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Zhao T, Masuda T, Miyoshi E, Takai M. High Dye-Loaded and Thin-Shell Fluorescent Polymeric Nanoparticles for Enhanced FRET Imaging of Protein-Specific Sialylation on the Cell Surface. Anal Chem 2020; 92:13271-13280. [DOI: 10.1021/acs.analchem.0c02502] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Tingbi Zhao
- Department of Bioengineering, School of Engineering, The University of Tokyo, Tokyo 113-8656, Japan
| | - Tsukuru Masuda
- Department of Bioengineering, School of Engineering, The University of Tokyo, Tokyo 113-8656, Japan
| | - Eiji Miyoshi
- Department of Molecular Biochemistry and Clinical Investigation, School of Medicine, Osaka University, Osaka 565-0871, Japan
| | - Madoka Takai
- Department of Bioengineering, School of Engineering, The University of Tokyo, Tokyo 113-8656, Japan
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5
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Characterizing the Core-Shell Architecture of Block Copolymer Nanoparticles with Electron Microscopy: A Multi-Technique Approach. Polymers (Basel) 2020; 12:polym12081656. [PMID: 32722462 PMCID: PMC7464915 DOI: 10.3390/polym12081656] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 07/16/2020] [Accepted: 07/17/2020] [Indexed: 12/31/2022] Open
Abstract
Electron microscopy has proved to be a major tool to study the structure of self-assembled amphiphilic block copolymer particles. These specimens, like supramolecular biological structures, are problematic for electron microscopy because of their poor capacity to scatter electrons and their susceptibility to radiation damage and dehydration. Sub-50 nm core-shell spherical particles made up of poly(hydroxyethyl acrylate)–b–poly(styrene) are prepared via polymerization-induced self-assembly (PISA). For their morphological characterization, we discuss the advantages, limitations, and artefacts of TEM with or without staining, cryo-TEM, and SEM. A number of technical points are addressed such as precisely shaping of particle boundaries, resolving the particle shell, differentiating particle core and shell, and the effect of sample drying and staining. TEM without staining and cryo-TEM largely evaluate the core diameter. Negative staining TEM is more efficient than positive staining TEM to preserve native structure and to visualize the entire particle volume. However, no technique allows for a satisfactory imaging of both core and shell regions. The presence of long protruding chains is manifested by patched structure in cryo-TEM and a significant edge effect in SEM. This manuscript provides a basis for polymer chemists to develop their own specimen preparations and to tackle the interpretation of challenging systems.
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6
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Morla-Folch J, Vargas-Nadal G, Zhao T, Sissa C, Ardizzone A, Kurhuzenkau S, Köber M, Uddin M, Painelli A, Veciana J, Belfield KD, Ventosa N. Dye-Loaded Quatsomes Exhibiting FRET as Nanoprobes for Bioimaging. ACS APPLIED MATERIALS & INTERFACES 2020; 12:20253-20262. [PMID: 32268722 DOI: 10.1021/acsami.0c03040] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Fluorescent organic nanoparticles (FONs) are emerging as an attractive alternative to the well-established fluorescent inorganic nanoparticles or small organic dyes. Their proper design allows one to obtain biocompatible probes with superior brightness and high photostability, although usually affected by low colloidal stability. Herein, we present a type of FONs with outstanding photophysical and physicochemical properties in-line with the stringent requirements for biomedical applications. These FONs are based on quatsome (QS) nanovesicles containing a pair of fluorescent carbocyanine molecules that give rise to Förster resonance energy transfer (FRET). Structural homogeneity, high brightness, photostability, and high FRET efficiency make these FONs a promising class of optical bioprobes. Loaded QSs have been used for in vitro bioimaging, demonstrating the nanovesicle membrane integrity after cell internalization, and the possibility to monitor the intracellular vesicle fate. Taken together, the proposed QSs loaded with a FRET pair constitute a promising platform for bioimaging and theranostics.
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Affiliation(s)
- Judit Morla-Folch
- Institut Ciencia dels Materials de Barcelona (ICMAB-CSIC), Campus UAB, 08193 Cerdanyola, Spain
- Department of Chemistry and Environmental Science, College of Science and Liberal Arts, New Jersey Institute of Technology, 323 Martin Luther King, Jr., Blvd., Newark, New Jersey 07102, United States
| | - Guillem Vargas-Nadal
- Institut Ciencia dels Materials de Barcelona (ICMAB-CSIC), Campus UAB, 08193 Cerdanyola, Spain
| | - Tinghan Zhao
- Department of Chemistry and Environmental Science, College of Science and Liberal Arts, New Jersey Institute of Technology, 323 Martin Luther King, Jr., Blvd., Newark, New Jersey 07102, United States
| | - Cristina Sissa
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università di Parma, Parco Area delle Scienze 17/A, 43124 Parma, Italy
| | - Antonio Ardizzone
- Institut Ciencia dels Materials de Barcelona (ICMAB-CSIC), Campus UAB, 08193 Cerdanyola, Spain
| | - Siarhei Kurhuzenkau
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università di Parma, Parco Area delle Scienze 17/A, 43124 Parma, Italy
| | - Mariana Köber
- Institut Ciencia dels Materials de Barcelona (ICMAB-CSIC), Campus UAB, 08193 Cerdanyola, Spain
- Centro de Investigación Biomédica en Red CIBER-BBN, Barcelona, Spain
| | - Mehrun Uddin
- Department of Chemistry and Environmental Science, College of Science and Liberal Arts, New Jersey Institute of Technology, 323 Martin Luther King, Jr., Blvd., Newark, New Jersey 07102, United States
| | - Anna Painelli
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università di Parma, Parco Area delle Scienze 17/A, 43124 Parma, Italy
| | - Jaume Veciana
- Institut Ciencia dels Materials de Barcelona (ICMAB-CSIC), Campus UAB, 08193 Cerdanyola, Spain
- Centro de Investigación Biomédica en Red CIBER-BBN, Barcelona, Spain
| | - Kevin D Belfield
- Department of Chemistry and Environmental Science, College of Science and Liberal Arts, New Jersey Institute of Technology, 323 Martin Luther King, Jr., Blvd., Newark, New Jersey 07102, United States
| | - Nora Ventosa
- Institut Ciencia dels Materials de Barcelona (ICMAB-CSIC), Campus UAB, 08193 Cerdanyola, Spain
- Centro de Investigación Biomédica en Red CIBER-BBN, Barcelona, Spain
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7
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Theerasilp M, Crespy D. Self-reporting of payload release in polymer coatings based on the inner filter effect. Polym Chem 2020. [DOI: 10.1039/c9py01756a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
New polymeric nanoparticle sensors are developed for monitoring the release of non-fluorescent payloads in coatings by the naked eye.
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Affiliation(s)
- Man Theerasilp
- Department of Materials Science and Engineering
- School of Molecular Science and Engineering
- Vidyasirimedhi Institute of Science and Technology (VISTEC)
- Rayong 21210
- Thailand
| | - Daniel Crespy
- Department of Materials Science and Engineering
- School of Molecular Science and Engineering
- Vidyasirimedhi Institute of Science and Technology (VISTEC)
- Rayong 21210
- Thailand
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8
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Caponetti V, Trzcinski JW, Cantelli A, Tavano R, Papini E, Mancin F, Montalti M. Self-Assembled Biocompatible Fluorescent Nanoparticles for Bioimaging. Front Chem 2019; 7:168. [PMID: 30984740 PMCID: PMC6447614 DOI: 10.3389/fchem.2019.00168] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Accepted: 03/05/2019] [Indexed: 12/31/2022] Open
Abstract
Fluorescence is a powerful tool for mapping biological events in real-time with high spatial resolution. Ultra-bright probes are needed in order to achieve high sensitivity: these probes are typically obtained by gathering a huge number of fluorophores in a single nanoparticle (NP). Unfortunately this assembly produces quenching of the fluorescence because of short-range intermolecular interactions. Here we demonstrate that rational structural modification of a well-known molecular fluorophore N-(7-nitrobenz-2-oxa-1,3-diazol-4-yl) (NBD) produces fluorophores that self-assemble in nanoparticles in the biocompatible environment without any dramatic decrease of the fluorescence quantum yield. Most importantly, the resulting NP show, in an aqueous environment, a brightness which is more than six orders of magnitude higher than the molecular component in the organic solvent. Moreover, the NP are prepared by nanoprecipitation and they are stabilized only via non-covalent interaction, they are surprisingly stable and can be observed as individual bright spots freely diffusing in solution at a concentration as low as 1 nM. The suitability of the NP as biocompatible fluorescent probes was demonstrated in the case of HeLa cells by fluorescence confocal microscopy and MTS assays.
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Affiliation(s)
- Valeria Caponetti
- Dipartimento di Chimica "Giacomo Ciamician", Università di Bologna, Bologna, Italy
| | - Jakub W Trzcinski
- Dipartimento di Scienze Chimiche, Università di Padova, Padova, Italy
| | - Andrea Cantelli
- Dipartimento di Chimica "Giacomo Ciamician", Università di Bologna, Bologna, Italy
| | - Regina Tavano
- Dipartimento di Scienze Biomediche, Università di Padova, Padova, Italy
| | - Emanuele Papini
- Dipartimento di Scienze Biomediche, Università di Padova, Padova, Italy
| | - Fabrizio Mancin
- Dipartimento di Scienze Chimiche, Università di Padova, Padova, Italy
| | - Marco Montalti
- Dipartimento di Chimica "Giacomo Ciamician", Università di Bologna, Bologna, Italy
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9
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Non-traditional intrinsic luminescence: inexplicable blue fluorescence observed for dendrimers, macromolecules and small molecular structures lacking traditional/conventional luminophores. Prog Polym Sci 2019. [DOI: 10.1016/j.progpolymsci.2018.09.004] [Citation(s) in RCA: 159] [Impact Index Per Article: 31.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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10
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Grazon C, Si Y, Placial JP, Rieger J, Méallet-Renault R, Clavier G. Core–shell polymeric nanoparticles comprising BODIPY and fluorescein as ultra-bright ratiometric fluorescent pH sensors. Photochem Photobiol Sci 2019; 18:1156-1165. [DOI: 10.1039/c8pp00457a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ultra-bright pH-sensitive fluorescent nanoparticles, including BODIPY in their core and fluorescein in their shell, are synthesized. They contain more than 2500 fluorophores and exhibit a linear fluorescence response between pH 5.5 and 7.5.
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Affiliation(s)
- Chloé Grazon
- PPSM
- ENS Cachan
- CNRS
- Université Paris-Saclay
- 94235 Cachan
| | - Yang Si
- PPSM
- ENS Cachan
- CNRS
- Université Paris-Saclay
- 94235 Cachan
| | | | - Jutta Rieger
- Sorbonne Université
- CNRS
- Institut Parisien de Chimie Moléculaire
- 75005 Paris
- France
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Han W, Zhang S, Qian J, Zhang J, Wang X, Xie Z, Xu B, Han Y, Tian W. Redox‐responsive Fluorescent Nanoparticles Based on Diselenide‐containing AIEgens for Cell Imaging and Selective Cancer Therapy. Chem Asian J 2018; 14:1745-1753. [DOI: 10.1002/asia.201801527] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 11/29/2018] [Indexed: 12/12/2022]
Affiliation(s)
- Wenkun Han
- State Key Laboratory of Supramolecular Structure and MaterialsJilin University Changchun Jilin 130012 China
| | - Song Zhang
- State Key Laboratory of Supramolecular Structure and MaterialsJilin University Changchun Jilin 130012 China
| | - Jingyu Qian
- State Key Laboratory of Supramolecular Structure and MaterialsJilin University Changchun Jilin 130012 China
| | - Jianxu Zhang
- State Key Laboratory of Polymer Physics and ChemistryChangchun Institute of Applied Chemistry, Chinese Academy of Sciences Changchun Jilin 130022 China
| | - Xuanhang Wang
- State Key Laboratory of Supramolecular Structure and MaterialsJilin University Changchun Jilin 130012 China
| | - Zhigang Xie
- State Key Laboratory of Polymer Physics and ChemistryChangchun Institute of Applied Chemistry, Chinese Academy of Sciences Changchun Jilin 130022 China
| | - Bin Xu
- State Key Laboratory of Supramolecular Structure and MaterialsJilin University Changchun Jilin 130012 China
| | - Yanqiu Han
- Department of Neurology No.2 HospitalJilin University Changchun Jilin 130041 China
| | - Wenjing Tian
- State Key Laboratory of Supramolecular Structure and MaterialsJilin University Changchun Jilin 130012 China
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12
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Haribabu V, Sharmiladevi P, Akhtar N, Farook AS, Girigoswami K, Girigoswami A. Label Free Ultrasmall Fluoromagnetic Ferrite-clusters for Targeted Cancer Imaging and Drug Delivery. Curr Drug Deliv 2018; 16:233-241. [PMID: 30451110 DOI: 10.2174/1567201816666181119112410] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 10/10/2018] [Accepted: 11/07/2018] [Indexed: 01/18/2023]
Abstract
OBJECTIVE The label free ultrasmall fluorescent ferrite clusters have been engineered in a controlled fashion which was stabilized by serum protein and functionalized by folic acid for the application of targeted multimodal optical and Magnetic Resonance (MR) cancer imaging. METHODS The ultra-small manganese ferrite nanoclusters (PMNCs) with a diameter of 4 nm have a commendable effect on the longitudinal (T1) and transverse (T2) relaxation in MR imaging that was evident from the phantom and animal MRI. RESULTS The calculated longitudinal molar relaxivity of nanoclusters was found to be 6.9 ± 0.10 mM-1 S-1 which was exactly 2.22 times better than the conventional Gd-DOTA and their 4.01 ratio of the transverse (r2) and longitudinal (r1) relaxivities made them a potential candidate for both T1 and T2 contrast agents in MRI. In addition, the fluorescence-based small animal imaging showed folic acid driven accumulated fluorescent signal at the tumour site to conclude the capacity of PMNCs for targeted fluorescence imaging of cancer diagnosis. CONCLUSION The cytotoxicity assay and histopathology studies were the evidence for their safe biodistribution in animal systems. Furthermore, the protein encapsulated clusters have the ability to deliver the anticancer drug Methotrexate (MTX) to the cancer tissues with a sustained manner. Therefore, one can conclude the remarkable efficacy of architect nanoclusters for theragnosis.
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Affiliation(s)
- Viswanathan Haribabu
- Faculty of Allied Health Sciences, Chettinad Hospital and Research Institute (CHRI), Chettinad Academy of Research & Education (CARE), Kelambakkam, Chennai 603 103, India
| | - Palani Sharmiladevi
- Faculty of Allied Health Sciences, Chettinad Hospital and Research Institute (CHRI), Chettinad Academy of Research & Education (CARE), Kelambakkam, Chennai 603 103, India
| | - Najim Akhtar
- Faculty of Allied Health Sciences, Chettinad Hospital and Research Institute (CHRI), Chettinad Academy of Research & Education (CARE), Kelambakkam, Chennai 603 103, India
| | - Abubacker Sulaiman Farook
- Department of Radiology, Chettinad Hospital & Research Institute (CHRI), Kelambakkam, Chennai 603 103, India
| | - Koyeli Girigoswami
- Faculty of Allied Health Sciences, Chettinad Hospital and Research Institute (CHRI), Chettinad Academy of Research & Education (CARE), Kelambakkam, Chennai 603 103, India
| | - Agnishwar Girigoswami
- Faculty of Allied Health Sciences, Chettinad Hospital and Research Institute (CHRI), Chettinad Academy of Research & Education (CARE), Kelambakkam, Chennai 603 103, India
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13
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Pansare VJ, Faenza WJ, Lu H, Adamson DH, Prud’homme RK. Formulation of long-wavelength indocyanine green nanocarriers. JOURNAL OF BIOMEDICAL OPTICS 2017; 22:1-11. [PMID: 28925107 PMCID: PMC5605487 DOI: 10.1117/1.jbo.22.9.096007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2016] [Accepted: 07/26/2017] [Indexed: 05/03/2023]
Abstract
Indocyanine green (ICG), a Food and Drug Administration (FDA)-approved fluorophore with excitation and emission wavelengths inside the "optical imaging window," has been incorporated into nanocarriers (NCs) to achieve enhanced circulation time, targeting, and real-time tracking in vivo. While previous studies transferred ICG exogenously into NCs, here, a one-step rapid precipitation process [flash nanoprecipitation (FNP)] creates ICG-loaded NCs with tunable, narrow size distributions from 30 to 180 nm. A hydrophobic ion pair of ICG-tetraoctylammonium or tetradodecylammonium chloride is formed either in situ during FNP or preformed then introduced into the FNP feed stream. The NCs are formulated with cores comprising either vitamin E (VE) or polystyrene (PS). ICG core loadings of 30 wt. % for VE and 10 wt. % for PS are achieved. However, due to a combination of molecular aggregation and Förster quenching, maximum fluorescence (FL) occurs at 10 wt. % core loading. The FL-per-particle scales with core diameter to the third power, showing that FNP enables uniform volume encapsulation. By varying the ICG counter-ion ratio, encapsulation efficiencies above 80% are achieved even in the absence of ion pairing, which rises to 100% with 1∶1 ion pairing. Finally, while ICG ion pairs are shown to be stable in buffer, they partition out of NC cores in under 30 min in the presence of physiological albumin concentrations.
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Affiliation(s)
- Vikram J. Pansare
- Princeton University, Department of Chemical and Biological Engineering, Princeton, New Jersey, United States
| | | | - Hoang Lu
- Princeton University, Department of Chemical and Biological Engineering, Princeton, New Jersey, United States
| | - Douglas H. Adamson
- University of Connecticut, Department of Chemistry, Storrs, Connecticut, United States
| | - Robert K. Prud’homme
- Princeton University, Department of Chemical and Biological Engineering, Princeton, New Jersey, United States
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14
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Guerrero Y, Singh SP, Mai T, Murali RK, Tanikella L, Zahedi A, Kundra V, Anvari B. Optical Characteristics and Tumor Imaging Capabilities of Near Infrared Dyes in Free and Nano-Encapsulated Formulations Comprised of Viral Capsids. ACS APPLIED MATERIALS & INTERFACES 2017; 9:19601-19611. [PMID: 28524652 DOI: 10.1021/acsami.7b03373] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Near infrared (NIR) fluorescent molecules and nanosized structures can serve as potential optical probes for image-guided removal of small tumor nodules (≲ 1 mm diameter). Although indocyanine green (ICG) remains as the only FDA-approved NIR dye, other organic dyes are under extensive development for enhanced imaging capabilities. One such dye is BrCy106-NHS where bromine is substituted for aromatic structures in cyanine dyes. Herein, we investigate the absorption and fluorescence characteristics of ICG and BrCy106-NHS, and quantitatively assess their tumor imaging capabilities in free (non-encapsulated) and a nano-encapsulated form that utilizes the capsid protein (CP) from genome-depleted plant-infecting brome mosaic virus as the encapsulating shell. We refer to these nanoconstructs as optical viral ghosts (OVGs). For example, when fabricated at CP to dye concentration ratio of 200, value of the spectrally integrated fluorescence emission for BrCy106-NHS-doped OVGs is ∼60 times higher than that of ICG-doped OVGs. Our analysis of homogenized mice intraperitoneal tumors indicate that the averaged total fluorescence emission associated with the use of BrCy106-NHS-doped can be at least about 44 times greater than that of ICG-doped OVGs. Our results suggest that OVGs containing BrCy106-NHS may potentially serve as effective optical probes for tumor imaging.
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Affiliation(s)
- Yadir Guerrero
- Department of Bioengineering, University of California , Riverside, California 92521, United States
| | | | - Turong Mai
- Department of Bioengineering, University of California , Riverside, California 92521, United States
| | | | - Leela Tanikella
- Department of Bioengineering, University of California , Riverside, California 92521, United States
| | - Atta Zahedi
- Department of Bioengineering, University of California , Riverside, California 92521, United States
| | | | - Bahman Anvari
- Department of Bioengineering, University of California , Riverside, California 92521, United States
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15
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Lu HD, Lim TL, Javitt S, Heinmiller A, Prud’homme RK. Assembly of Macrocycle Dye Derivatives into Particles for Fluorescence and Photoacoustic Applications. ACS COMBINATORIAL SCIENCE 2017; 19:397-406. [PMID: 28441473 DOI: 10.1021/acscombsci.7b00031] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Optical imaging is a rapidly progressing medical technique that can benefit from the development of new and improved optical imaging agents suitable for use in vivo. However, the molecular rules detailing what optical agents can be processed and encapsulated into in vivo presentable forms are not known. We here present the screening of series of highly hydrophobic porphyrin, phthalocyanine, and naphthalocyanine dye macrocycles through a self-assembling Flash NanoPrecipitation process to form a series of water dispersible dye nanoparticles (NPs). Ten out of 19 tested dyes could be formed into poly(ethylene glycol) coated nanoparticles 60-150 nm in size, and these results shed insight on dye structural criteria that are required to permit dye assembly into NPs. Dye NPs display a diverse range of absorbance profiles with absorbance maxima within the NIR region, and have absorbance that can be tuned by varying dye choice or by doping bulking materials in the NP core. Particle properties such as dye core load and the compositions of co-core dopants were varied, and subsequent effects on photoacoustic and fluorescence signal intensities were measured. These results provide guidelines for designing NPs optimized for photoacoustic imaging and NPs optimized for fluorescence imaging. This work provides important details for dye NP engineering, and expands the optical imaging tools available for use.
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Affiliation(s)
- Hoang D. Lu
- Department
of Chemical and Biological Engineering, Princeton University, Princeton, New Jersey 08544, United States
| | - Tristan L. Lim
- Department
of Chemical and Biological Engineering, Princeton University, Princeton, New Jersey 08544, United States
| | - Shoshana Javitt
- Department
of Chemical and Biological Engineering, Princeton University, Princeton, New Jersey 08544, United States
| | | | - Robert K. Prud’homme
- Department
of Chemical and Biological Engineering, Princeton University, Princeton, New Jersey 08544, United States
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16
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Krishnakumar S, Gopidas KR. Covalent Functionalization of Organic Nanoparticles Using Aryl Diazonium Chemistry and Their Solvent-Dependent Self-Assembly. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:1162-1170. [PMID: 28061527 DOI: 10.1021/acs.langmuir.6b03269] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A simple method for covalent functionalization of Fréchet-type dendron nanoparticles (FDNs) using tris-bipyridylruthenium(II) is described. Covalent functionalization is achieved by chemically reducing the diazo derivative of a ruthenium(II)bipyridine complex in the presence of FDNs wherein the radical species generated gets covalently linked to the nanoparticle surface. Simplicity, rapidity, and robustness are the advantages offered by the present approach. The nanoparticles, post functionalization, were characterized using transmission electron microscopy, thermogravimetric analysis, and infrared, energy-dispersive X-ray, UV-visible, and nuclear magnetic resonance spectroscopic techniques. Depending on the solvent, the ruthenium complex-linked FDN displays a range of morphologies, including nanoparticles, fiber-networks, and nanocapsules. In the nanocapsules and fiber-networks observed in organic solvents, the ruthenium complex is confined within the interior domain of the aggregate, whereas in the nanoparticles observed in water, it is present on the periphery. The formation of predictable morphologies in different solvents plays a key role in using such self-assembled structures for various applications such as sensing, catalysis, and light harvesting. Characterization of these nanoaggregates using different spectroscopic and microscopic techniques is also described.
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Affiliation(s)
- Sreedevi Krishnakumar
- Photosciences and Photonics, Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Council of Scientific and Industrial Research (CSIR) , Trivandrum 695019, India
| | - Karical R Gopidas
- Photosciences and Photonics, Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Council of Scientific and Industrial Research (CSIR) , Trivandrum 695019, India
- Academy of Scientific and Innovative Research (AcSIR), CSIR-NIIST Campus , Thiruvananthapuram 695019, India
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17
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18
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Reisch A, Klymchenko AS. Fluorescent Polymer Nanoparticles Based on Dyes: Seeking Brighter Tools for Bioimaging. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2016; 12:1968-92. [PMID: 26901678 PMCID: PMC5405874 DOI: 10.1002/smll.201503396] [Citation(s) in RCA: 364] [Impact Index Per Article: 45.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2015] [Revised: 12/13/2015] [Indexed: 05/13/2023]
Abstract
Speed, resolution and sensitivity of today's fluorescence bioimaging can be drastically improved by fluorescent nanoparticles (NPs) that are many-fold brighter than organic dyes and fluorescent proteins. While the field is currently dominated by inorganic NPs, notably quantum dots (QDs), fluorescent polymer NPs encapsulating large quantities of dyes (dye-loaded NPs) have emerged recently as an attractive alternative. These new nanomaterials, inspired from the fields of polymeric drug delivery vehicles and advanced fluorophores, can combine superior brightness with biodegradability and low toxicity. Here, we describe the strategies for synthesis of dye-loaded polymer NPs by emulsion polymerization and assembly of pre-formed polymers. Superior brightness requires strong dye loading without aggregation-caused quenching (ACQ). Only recently several strategies of dye design were proposed to overcome ACQ in polymer NPs: aggregation induced emission (AIE), dye modification with bulky side groups and use of bulky hydrophobic counterions. The resulting NPs now surpass the brightness of QDs by ≈10-fold for a comparable size, and have started reaching the level of the brightest conjugated polymer NPs. Other properties, notably photostability, color, blinking, as well as particle size and surface chemistry are also systematically analyzed. Finally, major and emerging applications of dye-loaded NPs for in vitro and in vivo imaging are reviewed.
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Affiliation(s)
- Andreas Reisch
- Laboratoire de Biophotonique et Pharmacologie, UMR 7213 CNRS, Université de Strasbourg, Faculté de Pharmacie, 74, Route du Rhin, 67401 ILLKIRCH Cedex, France
| | - Andrey S. Klymchenko
- Laboratoire de Biophotonique et Pharmacologie, UMR 7213 CNRS, Université de Strasbourg, Faculté de Pharmacie, 74, Route du Rhin, 67401 ILLKIRCH Cedex, France
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19
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Shulov I, Oncul S, Reisch A, Arntz Y, Collot M, Mely Y, Klymchenko AS. Fluorinated counterion-enhanced emission of rhodamine aggregates: ultrabright nanoparticles for bioimaging and light-harvesting. NANOSCALE 2015; 7:18198-18210. [PMID: 26482443 DOI: 10.1039/c5nr04955e] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The key to ultrabright fluorescent nanomaterials is the control of dye emission in the aggregated state. Here, lipophilic rhodamine B derivatives are assembled into nanoparticles (NPs) using tetraphenylborate counterions with varied fluorination levels that should tune the short-range dye ordering. Counterion fluorination is found to drastically enhance the emission characteristics of these NPs. Highly fluorinated counterions produce 10-20 nm NPs containing >300 rhodamine dyes with a fluorescence quantum yield of 40-60% and a remarkably narrow emission band (34 nm), whereas, for other counterions, aggregation caused quenching with a weak broad-band emission is observed. NPs with the most fluorinated counterion (48 fluorines) are ∼40-fold brighter than quantum dots (QD585 at 532 nm excitation) in single-molecule microscopy, showing improved photostability and suppressed blinking. Due to exciton diffusion, revealed by fluorescence anisotropy, these NPs are efficient FRET donors to single cyanine-5 acceptors with a light-harvesting antenna effect reaching 200. Finally, NPs with the most fluorinated counterion are rather stable after entry into living cells, in contrast to their less fluorinated analogue. Thus, the present work shows the crucial role of counterion fluorination in achieving high fluorescence brightness and photostability, narrow-band emission, efficient energy transfer and high intracellular stability of nanomaterials for light harvesting and bioimaging applications.
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Affiliation(s)
- Ievgen Shulov
- Laboratoire de Biophotonique et Pharmacologie, UMR 7213 CNRS, Université de Strasbourg, Faculté de Pharmacie, 74, Route du Rhin, 67401 ILLKIRCH Cedex, France. and Organic Chemistry Department, Chemistry Faculty, Taras Shevchenko National University of Kyiv, 01601 Kyiv, Ukraine
| | - Sule Oncul
- Laboratoire de Biophotonique et Pharmacologie, UMR 7213 CNRS, Université de Strasbourg, Faculté de Pharmacie, 74, Route du Rhin, 67401 ILLKIRCH Cedex, France. and Department of Biophysics, School of Medicine, Istanbul Medeniyet University, 34700 Istanbul, Turkey
| | - Andreas Reisch
- Laboratoire de Biophotonique et Pharmacologie, UMR 7213 CNRS, Université de Strasbourg, Faculté de Pharmacie, 74, Route du Rhin, 67401 ILLKIRCH Cedex, France.
| | - Youri Arntz
- Laboratoire de Biophotonique et Pharmacologie, UMR 7213 CNRS, Université de Strasbourg, Faculté de Pharmacie, 74, Route du Rhin, 67401 ILLKIRCH Cedex, France.
| | - Mayeul Collot
- Laboratoire de Biophotonique et Pharmacologie, UMR 7213 CNRS, Université de Strasbourg, Faculté de Pharmacie, 74, Route du Rhin, 67401 ILLKIRCH Cedex, France.
| | - Yves Mely
- Laboratoire de Biophotonique et Pharmacologie, UMR 7213 CNRS, Université de Strasbourg, Faculté de Pharmacie, 74, Route du Rhin, 67401 ILLKIRCH Cedex, France.
| | - Andrey S Klymchenko
- Laboratoire de Biophotonique et Pharmacologie, UMR 7213 CNRS, Université de Strasbourg, Faculté de Pharmacie, 74, Route du Rhin, 67401 ILLKIRCH Cedex, France.
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20
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Affiliation(s)
- Mahmoud Elsabahy
- Department of Chemistry, Department of Chemical Engineering, Department of Materials Science & Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. Box 30012, 3255 TAMU, College Station, Texas 77842-3012, United States
- Department of Pharmaceutics, Faculty of Pharmacy, Assiut International Center of Nanomedicine, Al-Rajhy Liver Hospital, Assiut University, 71515 Assiut, Egypt, and Misr University for Science and Technology, 6 of October City, Egypt
| | - Gyu Seong Heo
- Department of Chemistry, Department of Chemical Engineering, Department of Materials Science & Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. Box 30012, 3255 TAMU, College Station, Texas 77842-3012, United States
| | - Soon-Mi Lim
- Department of Chemistry, Department of Chemical Engineering, Department of Materials Science & Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. Box 30012, 3255 TAMU, College Station, Texas 77842-3012, United States
| | - Guorong Sun
- Department of Chemistry, Department of Chemical Engineering, Department of Materials Science & Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. Box 30012, 3255 TAMU, College Station, Texas 77842-3012, United States
| | - Karen L. Wooley
- Department of Chemistry, Department of Chemical Engineering, Department of Materials Science & Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. Box 30012, 3255 TAMU, College Station, Texas 77842-3012, United States
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21
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Li X, Zhang Q, Ahmad Z, Huang J, Ren Z, Weng W, Han G, Mao C. Near-infrared luminescent CaTiO 3:Nd 3+ nanofibers with tunable and trackable drug release kinetics. J Mater Chem B 2015; 3:7449-7456. [PMID: 27398215 PMCID: PMC4934121 DOI: 10.1039/c5tb01158b] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
750-850 nm (NIR I) and 1000-1400 nm (NIR II) in the near infrared (NIR) spectra are two windows of optical transparency for biological tissues with the latter capable of penetrating tissue deeper. Monitoring drug release from the drug carrier is still a daunting challenge in the field of nanomedicine. To overcome such a challenge, we propose to use porous Nd3+-doped CaTiO3 nanofibers, which can be excited by NIR I to emit NIR II light, to carry drugs to test the concept of monitoring drug release from the nanofibers by detecting the NIR II emission intensity. Towards this end, we first used electrospinning to prepare porous Nd3+-doped CaTiO3 nanofibers by adding micelle-forming surfactant Pluronic F127, followed by annealing to remove the organic component. After a model drug, ibuprofen, was loaded into the porous nanofibers, the drug release from the nanofibers into the phosphate buffered saline (PBS) solution was monitored by detecting the NIR II emission from the nanofibers. We found that the release of the drug molecules from the nanofibers into the PBS solution triggers the quenching of NIR II emission by the hydroxyl groups in the surrounding media. Consequently, more drug release corresponded to more reduction in the intensity of the NIR II emission, allowing us to monitor the drug release by simply detecting the intensity of NIR II from the nanofibers. In addition, we demonstrated that tuning the amount of micelle-forming surfactant Pluronic F127 enabled us to tune the porosity of the nanofibers and thus the drug release kinetics. This study suggests that Nd3+ doped CaTiO3 nanostructures can serve as a promising drug delivery platform with the potential to monitor drug release kinetics by detecting the tissue-penetrating NIR emission.
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Affiliation(s)
- Xiang Li
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Qiuhong Zhang
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Zeeshan Ahmad
- Leicester School of Pharmacy, De Montfort University, Leicester, LE1 9BH, UK
| | - Jie Huang
- Department of Mechanical Engineering, University College London, London, WC1E 7JE, UK
| | - Zhaohui Ren
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Wenjian Weng
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Gaorong Han
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Chuanbin Mao
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
- Department of Chemistry & Biochemistry, Stephenson Life Sciences Research Center, University of Oklahoma, 101 Stephenson Parkway, Norman, Oklahoma, 73019-5300, USA
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22
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Das A, Theato P. Activated Ester Containing Polymers: Opportunities and Challenges for the Design of Functional Macromolecules. Chem Rev 2015; 116:1434-95. [DOI: 10.1021/acs.chemrev.5b00291] [Citation(s) in RCA: 285] [Impact Index Per Article: 31.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Anindita Das
- Institute
for Technical and
Macromolecular Chemistry, University of Hamburg, D-20146 Hamburg, Germany
| | - Patrick Theato
- Institute
for Technical and
Macromolecular Chemistry, University of Hamburg, D-20146 Hamburg, Germany
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23
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Abstract
Soft fluorescent nanomaterials have attracted recent attention as imaging agents for biological applications, because they provide the advantages of good biocompatibility, high brightness, and easy biofunctionalization. Here, we provide a survey of recent developments in fluorescent soft nano-sized biological imaging agents. Various soft fluorescent nanoparticles (NPs) (including dye-doped polymer NPs, semiconducting polymer NPs, small-molecule organic NPs, nanogels, micelles, vesicles, and biomaterial-based NPs) are summarized from the perspectives of preparation methods, structure, optical properties, and surface functionalization. Based on both optical and functional properties of the nano-sized imaging agents, their applications are then reviewed in terms of in vitro imaging, in vivo imaging, and cellular-process imaging, by means of specific or nonspecific targeting.
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Affiliation(s)
- Hong-Shang Peng
- Department of Chemistry, University of Washington, Seattle, WA, USA.
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24
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Chen J, Huang F, Wang H, Li Y, Liu S, Yi P. One-pot preparation of multicolor polymeric nanoparticles with high brightness by single wavelength excitation. J Appl Polym Sci 2015. [DOI: 10.1002/app.41492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jian Chen
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education; Hunan Province College Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology; Xiangtan 411201 People's Republic of China
- State Key Laboratory of Chemo/Biosensing and Chemometrics; Hunan University; Changsha 410082 People's Republic of China
| | - Fuhua Huang
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education; Hunan Province College Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology; Xiangtan 411201 People's Republic of China
| | - Hong Wang
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education; Hunan Province College Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology; Xiangtan 411201 People's Republic of China
| | - Ya Li
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education; Hunan Province College Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology; Xiangtan 411201 People's Republic of China
| | - Shengli Liu
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education; Hunan Province College Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology; Xiangtan 411201 People's Republic of China
| | - Pinggui Yi
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education; Hunan Province College Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology; Xiangtan 411201 People's Republic of China
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25
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Gao L, Li X, Li C, Yan Y. Detection of nonfluorescent cyhalothrin in honey by a spheral SiO2-based particle coating with thin fluorescent molecularly imprinted polymers film. RSC Adv 2015. [DOI: 10.1039/c5ra17851g] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
In this study, we report a general protocol for making core–shell SiO2@KH570-MIP based on the surface modification of SiO2 beads for the selective fluorescence detection of ultra trace cyhalothrin.
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Affiliation(s)
- Lin Gao
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- People's Republic of China
- Key Laboratory of Preparation and Applications of Environmental Friendly Materials
| | - Xiuying Li
- Key Laboratory of Preparation and Applications of Environmental Friendly Materials
- Jilin Normal University
- Chinese Ministry of Education
- Siping 136000
- People's Republic of China
| | - Chunxiang Li
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- People's Republic of China
| | - Yongsheng Yan
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- People's Republic of China
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26
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Robin MP, O'Reilly RK. Strategies for preparing fluorescently labelled polymer nanoparticles. POLYM INT 2014. [DOI: 10.1002/pi.4842] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Mathew P Robin
- Department of Chemistry University of Warwick Gibbet Hill Road Coventry CV4 7AL UK
| | - Rachel K O'Reilly
- Department of Chemistry University of Warwick Gibbet Hill Road Coventry CV4 7AL UK
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27
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Jarre G, Heyer S, Memmel E, Meinhardt T, Krueger A. Synthesis of nanodiamond derivatives carrying amino functions and quantification by a modified Kaiser test. Beilstein J Org Chem 2014; 10:2729-37. [PMID: 25550737 PMCID: PMC4273261 DOI: 10.3762/bjoc.10.288] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Accepted: 10/24/2014] [Indexed: 11/23/2022] Open
Abstract
Nanodiamonds functionalized with different organic moieties carrying terminal amino groups have been synthesized. These include conjugates generated by Diels–Alder reactions of ortho-quinodimethanes formed in situ from pyrazine and 5,6-dihydrocyclobuta[d]pyrimidine derivatives. For the quantification of primary amino groups a modified photometric assay based on the Kaiser test has been developed and validated for different types of aminated nanodiamond. The results correspond well to values obtained by thermogravimetry. The method represents an alternative wet-chemical quantification method in cases where other techniques like elemental analysis fail due to unfavourable combustion behaviour of the analyte or other impediments.
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Affiliation(s)
- Gerald Jarre
- Institute for Organic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Steffen Heyer
- Institute for Organic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Elisabeth Memmel
- Institute for Organic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Thomas Meinhardt
- Institute for Organic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Anke Krueger
- Institute for Organic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany ; Wilhelm Conrad Röntgen Research Center for Complex Material Systems (RCCM), Julius-Maximilians-Universität Würzburg, Germany
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28
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Cianga L, Bendrea AD, Fifere N, Nita LE, Doroftei F, Ag D, Seleci M, Timur S, Cianga I. Fluorescent micellar nanoparticles by self-assembly of amphiphilic, nonionic and water self-dispersible polythiophenes with “hairy rod” architecture. RSC Adv 2014. [DOI: 10.1039/c4ra10734a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
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29
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Liu M, Zhang X, Yang B, Deng F, Yang Y, Li Z, Zhang X, Wei Y. Preparation and Bioimaging Applications of AIE Dye Cross-linked Luminescent Polymeric Nanoparticles. Macromol Biosci 2014; 14:1712-8. [DOI: 10.1002/mabi.201400262] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2014] [Revised: 07/18/2014] [Indexed: 01/13/2023]
Affiliation(s)
- Meiying Liu
- Department of Chemistry/Institute of Polymers; Nanchang University; 999 Xuefu Avenue Nanchang 330031 PR China
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Organic Solids, Laboratory of New Materials, Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 PR China
| | - Xiqi Zhang
- Department of Chemistry and Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education); Tsinghua University; Beijing 100084 PR China
| | - Bin Yang
- Department of Chemistry and Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education); Tsinghua University; Beijing 100084 PR China
| | - Fengjie Deng
- Department of Chemistry/Institute of Polymers; Nanchang University; 999 Xuefu Avenue Nanchang 330031 PR China
| | - Yang Yang
- Department of Chemistry and Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education); Tsinghua University; Beijing 100084 PR China
| | - Zhen Li
- Department of Chemistry and Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education); Tsinghua University; Beijing 100084 PR China
| | - Xiaoyong Zhang
- Department of Chemistry/Institute of Polymers; Nanchang University; 999 Xuefu Avenue Nanchang 330031 PR China
- Department of Chemistry and Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education); Tsinghua University; Beijing 100084 PR China
| | - Yen Wei
- Department of Chemistry and Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education); Tsinghua University; Beijing 100084 PR China
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30
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Gao L, Li X, Zhang Q, Dai J, Wei X, Song Z, Yan Y, Li C. Molecularly imprinted polymer microspheres for optical measurement of ultra trace nonfluorescent cyhalothrin in honey. Food Chem 2014; 156:1-6. [DOI: 10.1016/j.foodchem.2013.12.065] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2013] [Revised: 12/16/2013] [Accepted: 12/16/2013] [Indexed: 11/25/2022]
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31
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Suthiwangcharoen N, Nagarajan R. Controlled design and construction of multifunctional nanoparticles by molecular self-assembly. RSC Adv 2014. [DOI: 10.1039/c3ra46209a] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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32
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Zhang X, Zhang X, Tao L, Chi Z, Xu J, Wei Y. Aggregation induced emission-based fluorescent nanoparticles: fabrication methodologies and biomedical applications. J Mater Chem B 2014; 2:4398-4414. [DOI: 10.1039/c4tb00291a] [Citation(s) in RCA: 296] [Impact Index Per Article: 29.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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33
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Zhang X, Zhang X, Yang B, Hui J, Liu M, Chi Z, Liu S, Xu J, Wei Y. A novel method for preparing AIE dye based cross-linked fluorescent polymeric nanoparticles for cell imaging. Polym Chem 2014. [DOI: 10.1039/c3py01348k] [Citation(s) in RCA: 85] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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34
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Li H, Zhang X, Zhang X, Yang B, Yang Y, Huang Z, Wei Y. Biocompatible fluorescent polymeric nanoparticles based on AIE dye and phospholipid monomers. RSC Adv 2014. [DOI: 10.1039/c4ra03092c] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
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35
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Yin Q, Yap FY, Yin L, Ma L, Zhou Q, Dobrucki LW, Fan TM, Gaba RC, Cheng J. Poly(iohexol) nanoparticles as contrast agents for in vivo X-ray computed tomography imaging. J Am Chem Soc 2013; 135:13620-3. [PMID: 23987119 PMCID: PMC4232444 DOI: 10.1021/ja405196f] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Biocompatible poly(iohexol) nanoparticles, prepared through cross-linking of iohexol and hexamethylene diisocyanate followed by coprecipitation of the resulting cross-linked polymer with mPEG-polylactide, were utilized as contrast agents for in vivo X-ray computed tomography (CT) imaging. Compared to conventional small-molecule contrast agents, poly(iohexol) nanoparticles exhibited substantially protracted retention within the tumor bed and a 36-fold increase in CT contrast 4 h post injection, which makes it possible to acquire CT images with improved diagnosis accuracy over a broad time frame without multiple administrations.
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Affiliation(s)
- Qian Yin
- Department of Materials Science and Engineering, University of Illinois at Urbana–Champaign, Urbana, Illinois 61801, USA
| | - Felix Y. Yap
- Department of Radiology, University of Illinois at Chicago, Chicago, Illinois 60612, USA
| | - Lichen Yin
- Department of Materials Science and Engineering, University of Illinois at Urbana–Champaign, Urbana, Illinois 61801, USA
| | - Liang Ma
- Department of Materials Science and Engineering, University of Illinois at Urbana–Champaign, Urbana, Illinois 61801, USA
| | - Qin Zhou
- Department of Pharmaceutical Science, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
| | - Lawrence W. Dobrucki
- Department of Bioengineering, University of Illinois at Urbana–Champaign, Urbana, Illinois 61801, USA
| | - Timothy M. Fan
- Department of Veterinary Clinical Medicine, University of Illinois at Urbana–Champaign, Urbana, Illinois 61801, USA
| | - Ron C. Gaba
- Department of Radiology, University of Illinois at Chicago, Chicago, Illinois 60612, USA
| | - Jianjun Cheng
- Department of Materials Science and Engineering, University of Illinois at Urbana–Champaign, Urbana, Illinois 61801, USA
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36
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Grazon C, Rieger J, Méallet-Renault R, Charleux B, Clavier G. Ultrabright Fluorescent Polymeric Nanoparticles Made from a New Family of BODIPY Monomers. Macromolecules 2013. [DOI: 10.1021/ma400590q] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Chloé Grazon
- PPSM, ENS Cachan, CNRS, 61 av Président
Wilson, F-94230 Cachan,
France
| | - Jutta Rieger
- UPMC Univ Paris 06, Laboratoire de Chimie des Polymères
(LCP), UMR
7610 94200 IVRY, France and CNRS, Laboratoire de Chimie des Polymères
(LCP), UMR 7610, 94200 IVRY, France
| | | | - Bernadette Charleux
- Université Lyon 1, CPE
Lyon, CNRS UMR 5265, Université de Lyon, C2P2, Team LCPP Bat 308F, 43 Bd du 11 novembre 1918, 69616 Villeurbanne,
France
| | - Gilles Clavier
- PPSM, ENS Cachan, CNRS, 61 av Président
Wilson, F-94230 Cachan,
France
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37
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Kim JH, Chung HH, Jeong MS, Song MR, Kang KW, Kim JS. One-step detection of circulating tumor cells in ovarian cancer using enhanced fluorescent silica nanoparticles. Int J Nanomedicine 2013; 8:2247-57. [PMID: 23818781 PMCID: PMC3693817 DOI: 10.2147/ijn.s45059] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Ovarian cancer is the fifth-leading cause of cancer-related deaths among women as a result of late diagnosis. For survival rates to improve, more sensitive and specific methods for earlier detection of ovarian cancer are needed. This study presents the development of rapid and specific one-step circulating tumor cell (CTC) detection using flow cytometry in a whole-blood sample with fluorescent silica nanoparticles. We prepared magnetic nanoparticle (MNP)-SiO2(rhodamine B isothiocyanate [RITC]) (MNP-SiO2[RITC] incorporating organic dyes [RITC, ëmax(ex/em) = 543/580 nm]) in the silica shell. We then controlled the amount of organic dye in the silica shell of MNP-SiO2(RITC) for increased fluorescence intensity to overcome the autofluorescence of whole blood and increase the sensitivity of CTC detection in whole blood. Next, we modified the surface function group of MNP-SiO2(RITC) from -OH to polyethylene glycol (PEG)/COOH and conjugated a mucin 1 cell surface-associated (MUC1) antibody on the surface of MNP-SiO2(RITC) for CTC detection. To study the specific targeting efficiency of MUC1-MNP-SiO2(RITC), we used immunocytochemistry with a MUC1-positive human ovarian cancer cell line and a negative human embryonic kidney cell line. This technology was capable of detecting 100 ovarian cancer cells in 50 μL of whole blood. In conclusion, we developed a one-step CTC detection technology in ovarian cancer based on multifunctional silica nanoparticles and the use of flow cytometry.
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Affiliation(s)
- Jin Hyun Kim
- R&D Center, Biterials Co, Ltd, Seoul, Republic of Korea
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38
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Robin MP, Mabire AB, Damborsky JC, Thom ES, Winzer-Serhan UH, Raymond JE, O’Reilly RK. New Functional Handle for Use as a Self-Reporting Contrast and Delivery Agent in Nanomedicine. J Am Chem Soc 2013; 135:9518-24. [DOI: 10.1021/ja403587c] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Mathew P. Robin
- Department of Chemistry, University of Warwick, Library Road, Coventry CV4 7AL,
United Kingdom
| | - Anne B. Mabire
- Department of Chemistry, University of Warwick, Library Road, Coventry CV4 7AL,
United Kingdom
| | - Joanne C. Damborsky
- Department of Neuroscience and Experimental Therapeutics, College of Medicine, Health Sciences Center, Texas A&M University System, Bryan, Texas 77807, United States
| | - Elizabeth S. Thom
- Department of Neuroscience and Experimental Therapeutics, College of Medicine, Health Sciences Center, Texas A&M University System, Bryan, Texas 77807, United States
| | - Ursula H. Winzer-Serhan
- Department of Neuroscience and Experimental Therapeutics, College of Medicine, Health Sciences Center, Texas A&M University System, Bryan, Texas 77807, United States
| | | | - Rachel K. O’Reilly
- Department of Chemistry, University of Warwick, Library Road, Coventry CV4 7AL,
United Kingdom
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39
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Zhang X, Zhang X, Wang S, Liu M, Tao L, Wei Y. Surfactant modification of aggregation-induced emission material as biocompatible nanoparticles: facile preparation and cell imaging. NANOSCALE 2013; 5:147-50. [PMID: 23154790 DOI: 10.1039/c2nr32698a] [Citation(s) in RCA: 145] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Water soluble and biocompatible fluorescent organic nanoparticles based on aggregation-induced emission (AIE) material were facilely prepared by mixing AIE material and surfactant. The utilization of such fluorescent organic nanoparticles for cell imaging applications was further explored.
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Affiliation(s)
- Xiqi Zhang
- Department of Chemistry and the Tsinghua Center for Frontier Polymer Research, Tsinghua University, Beijing, 100084, PR China
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40
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Elsabahy M, Wooley KL. Strategies Toward Well-Defined Polymer Nanoparticles Inspired by Nature: Chemistry versus Versatility. JOURNAL OF POLYMER SCIENCE. PART A, POLYMER CHEMISTRY 2012; 50:1869-1880. [PMID: 25574072 PMCID: PMC4285366 DOI: 10.1002/pola.25955] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Polymeric nanoparticles are promising delivery platforms for various biomedical applications. One of the main challenges toward the development of therapeutic nanoparticles is the premature disassembly and release of the encapsulated drug. Among the different strategies to enhance the kinetic stability of polymeric nanoparticles, shell- and core-crosslinking have been shown to provide robust character, while creating a suitable environment for encapsulation of a wide range of therapeutics, including hydrophilic, hydrophobic, metallic, and small and large biomolecules, with gating of their release as well. The versatility of shell- and core-crosslinked nanoparticles is driven from the ease by which the structures of the shell- and core-forming polymers and crosslinkers can be modified. In addition, postmodification with cell-recognition moieties, grafting of antibiofouling polymers, or chemical degradation of the core to yield nanocages allow the use of these robust nanostructures as "smart" nanocarriers. The building principles of these multifunctional nanoparticles borrow analogy from the synthesis, supramolecular assembly, stabilization, and dynamic activity of the naturally driven biological nanoparticles such as proteins, lipoproteins, and viruses. In this review, the chemistry involved during the buildup from small molecules to polymers to covalently stabilized nanoscopic objects is detailed, with contrast of the strategies of the supramolecular assembly of polymer building blocks followed by intramicellar stabilization into shell-, core-, or core-shell-crosslinked knedel-like nanoparticles versus polymerization of polymers into nanoscopic molecular brushes followed by further intramolecular covalent stabilization events. The rational design of shell-crosslinked knedel-like nanoparticles is then elaborated for therapeutic packaging and delivery, with emphasis on the polymer chemistry aspects to accomplish the synthesis of such nanoparticulate systems.
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Affiliation(s)
- Mahmoud Elsabahy
- Department of Chemistry, Texas A&M University, P.O. Box 30012, 3255 TAMU, College Station, Texas 77842-3012 ; Department of Chemistry, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. Box 30012, 3255 TAMU, College Station, Texas 77842-3012 ; Department of Pharmaceutics, Faculty of Pharmacy, Assiut University, Assiut, Egypt
| | - Karen L Wooley
- Department of Chemistry, Texas A&M University, P.O. Box 30012, 3255 TAMU, College Station, Texas 77842-3012 ; Department of Chemistry, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. Box 30012, 3255 TAMU, College Station, Texas 77842-3012 ; Department of Chemical Engineering, Texas A&M University, P.O. Box 30012, 3255 TAMU, College Station, Texas 77842-3012
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41
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A review of indocyanine green fluorescent imaging in surgery. Int J Biomed Imaging 2012; 2012:940585. [PMID: 22577366 PMCID: PMC3346977 DOI: 10.1155/2012/940585] [Citation(s) in RCA: 791] [Impact Index Per Article: 65.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2011] [Accepted: 02/01/2012] [Indexed: 02/07/2023] Open
Abstract
The purpose of this paper is to give an overview of the recent surgical intraoperational applications of indocyanine green fluorescence imaging methods, the basics of the technology, and instrumentation used. Well over 200 papers describing this technique in clinical setting are reviewed. In addition to the surgical applications, other recent medical applications of ICG are briefly examined.
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42
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Huber A, Behnke T, Würth C, Jaeger C, Resch-Genger U. Spectroscopic Characterization of Coumarin-Stained Beads: Quantification of the Number of Fluorophores Per Particle with Solid-State 19F-NMR and Measurement of Absolute Fluorescence Quantum Yields. Anal Chem 2012; 84:3654-61. [DOI: 10.1021/ac3000682] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Alexandra Huber
- Structural
Analysis Division and ‡Biophotonics Division, BAM Federal Institute for Materials Research and Testing, Department 1, Richard
Willstaetter Strasse 11, D-12489 Berlin, Germany
| | - Thomas Behnke
- Structural
Analysis Division and ‡Biophotonics Division, BAM Federal Institute for Materials Research and Testing, Department 1, Richard
Willstaetter Strasse 11, D-12489 Berlin, Germany
| | - Christian Würth
- Structural
Analysis Division and ‡Biophotonics Division, BAM Federal Institute for Materials Research and Testing, Department 1, Richard
Willstaetter Strasse 11, D-12489 Berlin, Germany
| | - Christian Jaeger
- Structural
Analysis Division and ‡Biophotonics Division, BAM Federal Institute for Materials Research and Testing, Department 1, Richard
Willstaetter Strasse 11, D-12489 Berlin, Germany
| | - Ute Resch-Genger
- Structural
Analysis Division and ‡Biophotonics Division, BAM Federal Institute for Materials Research and Testing, Department 1, Richard
Willstaetter Strasse 11, D-12489 Berlin, Germany
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43
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Pellach M, Goldshtein J, Ziv-Polat O, Margel S. Functionalised, photostable, fluorescent polystyrene nanoparticles of narrow size-distribution. J Photochem Photobiol A Chem 2012. [DOI: 10.1016/j.jphotochem.2011.11.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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44
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45
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Nyström AM, Wooley KL. The importance of chemistry in creating well-defined nanoscopic embedded therapeutics: devices capable of the dual functions of imaging and therapy. Acc Chem Res 2011; 44:969-78. [PMID: 21675721 PMCID: PMC3196832 DOI: 10.1021/ar200097k] [Citation(s) in RCA: 105] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2011] [Indexed: 12/11/2022]
Abstract
Nanomedicine is a rapidly evolving field, for which polymer building blocks are proving useful for the construction of sophisticated devices that provide enhanced diagnostic imaging and treatment of disease, known as theranostics. These well-defined nanoscopic objects have high loading capacities, can protect embedded therapeutic cargo, and offer control over the conditions and rates of release. Theranostics also offer external surface area for the conjugation of ligands to impart stealth characteristics and/or direct their interactions with biological receptors and provide a framework for conjugation of imaging agents to track delivery to diseased site(s). The nanoscopic dimensions allow for extensive biological circulation. The incorporation of such multiple functions is complicated, requiring exquisite chemical control during production and rigorous characterization studies to confirm the compositions, structures, properties, and performance. We are particularly interested in the study of nanoscopic objects designed for treatment of lung infections and acute lung injury, urinary tract infections, and cancer. This Account highlights our work over several years to tune the assembly of unique nanostructures. We provide examples of how the composition, structure, dimensions, and morphology of theranostic devices can tune their performance as drug delivery agents for the treatment of infectious diseases and cancer. The evolution of nanostructured materials from relatively simple overall shapes and internal morphologies to those of increasing complexity is driving the development of synthetic methodologies for the preparation of increasingly complex nanomedicine devices. Our nanomedicine devices are derived from macromolecules that have well-defined compositions, structures, and topologies, which provide a framework for their programmed assembly into nanostructures with controlled sizes, shapes, and morphologies. The inclusion of functional units within selective compartments/domains allows us to create (multi)functional materials. We employ combinations of controlled radical and ring-opening polymerizations, chemical transformations, and supramolecular assembly to construct such materials as functional entities. The use of multifunctional monomers with selective polymerization chemistries affords regiochemically functionalized polymers. Further supramolecular assembly processes in water with further chemical transformations provide discrete nanoscopic objects within aqueous solutions. This approach echoes processes in nature, whereby small molecules (amino acids, nucleic acids, saccharides) are linked into polymers (proteins, DNA/RNA, polysaccharides, respectively) and then those polymers fold into three-dimensional conformations that can lead to nanoscopic functional entities.
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Affiliation(s)
- Andreas M. Nyström
- The Swedish Medical Nanoscience Center, Department of Neuroscience, Karolinska Institutet, SE-17177 Stockholm, Sweden
| | - Karen L. Wooley
- Department of Chemistry, Department of Chemical Engineering, Texas A&M University, P.O. Box 30012, 3255 TAMU, College Station, Texas 77842-3012, United States
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46
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Gravier J, Navarro FP, Delmas T, Mittler F, Couffin AC, Vinet F, Texier I. Lipidots: competitive organic alternative to quantum dots for in vivo fluorescence imaging. JOURNAL OF BIOMEDICAL OPTICS 2011; 16:096013. [PMID: 21950927 DOI: 10.1117/1.3625405] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The use of fluorescent nanostructures can bring several benefits on the signal to background ratio for in vitro microscopy, in vivo small animal imaging, and image-guided surgery. Fluorescent quantum dots (QDs) display outstanding optical properties, with high brightness and low photobleaching rate. However, because of their toxic element core composition and their potential long term retention in reticulo-endothelial organs such as liver, their in vivo human applications seem compromised. The development of new dye-loaded (DiO, DiI, DiD, DiR, and Indocyanine Green (ICG)) lipid nanoparticles for fluorescence imaging (lipidots) is described here. Lipidot optical properties quantitatively compete with those of commercial QDs (QTracker(®)705). Multichannel in vivo imaging of lymph nodes in mice is demonstrated for doses as low as 2 pmols of particles. Along with their optical properties, fluorescent lipidots display very low cytotoxicity (IC(50) > 75 nM), which make them suitable tools for in vitro, and especially in vivo, fluorescence imaging applications.
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Affiliation(s)
- Julien Gravier
- CEA Grenoble, LETI-DTBS, MINATEC Campus, Grenoble, 38054 France
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47
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Stadler AL, Delos Santos JO, Stensrud ES, Dembska A, Silva GL, Liu S, Shank NI, Kunttas-Tatli E, Sobers CJ, Gramlich PME, Carell T, Peteanu LA, McCartney BM, Armitage BA. Fluorescent DNA nanotags featuring covalently attached intercalating dyes: synthesis, antibody conjugation, and intracellular imaging. Bioconjug Chem 2011; 22:1491-502. [PMID: 21755981 DOI: 10.1021/bc100485f] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
We have synthesized fluorescent DNA duplexes featuring multiple thiazole orange (TO) intercalating dyes covalently attached to the DNA via a triazole linkage. The intercalating dyes stabilize the duplex against thermal denaturation and show bright fluorescence in the green region of the spectrum. The emission color can be changed to orange or red by addition of energy-accepting Cy3 or Cy5 dyes attached covalently to the DNA duplex. The dye-modified DNA duplexes were then attached to a secondary antibody for intracellular fluorescence imaging of centrosomes in Drosophila embryos. Bright fluorescent foci were observed at the centrosomes in both the donor (TO) and acceptor (Cy5) channels, because the energy transfer efficiency is moderate. Monitoring the Cy5 emission channel significantly minimized the background signal because of the large shift in emission wavelength allowed by energy transfer.
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Affiliation(s)
- Andrea L Stadler
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
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48
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Sorrells JL, Shrestha R, Neumann WL, Wooley KL. Porphyrin-crosslinked block copolymer assemblies as photophysically-active nanoscopic devices. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c0jm04507a] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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49
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Li Y, Dong C, Chu J, Qi J, Li X. Surface molecular imprinting onto fluorescein-coated magnetic nanoparticles via reversible addition fragmentation chain transfer polymerization: a facile three-in-one system for recognition and separation of endocrine disrupting chemicals. NANOSCALE 2011; 3:280-287. [PMID: 21063623 DOI: 10.1039/c0nr00614a] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
In this study, we present a general protocol for the making of surface-imprinted magnetic fluorescence beads via reversible addition-fragmentation chain transfer polymerization. The resulting composites were characterized by X-ray diffraction analysis, transmission electron microscopy, scanning electron microscopy, fluorescence spectroscopy, Fourier transform infrared spectroscopy, and energy dispersive spectroscopy. The as-synthesized beads exhibited homogeneous polymer films (thickness of about 5.7 nm), spherical shape, high fluorescence intensity and magnetic property (Magnetization (Ms)=3.67 emu g(-1)). The hybrids bind the original template 17β-estradiol with an appreciable selectivity over structurally related compounds. In addition, the resulting hybrids performed without obvious deterioration after five repeated cycles. This study therefore demonstrates the potential of molecularly imprinted polymers for the recognition and separation of endocrine disrupting chemicals.
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Affiliation(s)
- Ying Li
- Department of Chemistry, Harbin Institute of Technology, Harbin, 150090, China
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