1
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Clayborn AL, Rebstock JA, Camardella LJ, Comeau EP, Dabhi SK, Graber EG, Joyce TH, Maricar IN, Pinckney BN, Puri D, Shekleton TB, Tran QBT, Harbron EJ. Self-Reporting Conjugated Polymer Nanoparticles for Superoxide Generation and Detection. ACS APPLIED MATERIALS & INTERFACES 2024; 16:38478-38489. [PMID: 39007528 DOI: 10.1021/acsami.4c06749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/16/2024]
Abstract
Conjugated polymer nanoparticles (CPNs or Pdots) have become increasingly popular fluorophores for multimodal applications that combine imaging with phototherapeutic effects. Reports of CPNs in photodynamic therapy applications typically focus on their ability to generate singlet oxygen. Alternatively, CPN excited states can interact with oxygen to form superoxide radical anion and a CPN-based hole polaron, both of which can have deleterious effects on fluorescence properties. Here, we demonstrate that CPNs prepared from the common conjugated polymer poly[(9,9-dioctylfluorenyl-2,7-diyl)-alt-co-(1,4-benzo-{2,1',3}-thiadiazole)] (PFBT, also known as F8BT) generate superoxide upon irradiation. We use the same CPNs to detect superoxide by doping them with a superoxide-responsive hydrocyanine dye developed by Murthy and co-workers. Superoxide induces off-to-on fluorescence switching by converting quenching hydrocyanine dyes to fluorescent cyanine dyes that act as fluorescence resonance energy transfer (FRET) acceptors for PFBT chromophores. Amplified FRET from the multichromophoric CPNs yields fluorescence signal intensities that are nearly 50 times greater than when the dye is excited directly or over 100 times greater when signal readout is from the CPN channel. The dye loading level governs the maximum amount of superoxide that induces a change in fluorescence properties and also influences the rate of superoxide generation by furnishing competitive excited state deactivation pathways. These results suggest that CPNs can be used to deliver superoxide in applications in which it is desirable and provide a caution for fluorescence-based CPN applications in which superoxide can damage fluorophores.
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Affiliation(s)
- Anna L Clayborn
- Department of Chemistry, William & Mary, Williamsburg, Virginia 23187-8795, United States
| | - Jaclyn A Rebstock
- Department of Chemistry, William & Mary, Williamsburg, Virginia 23187-8795, United States
| | - Lauren J Camardella
- Department of Chemistry, William & Mary, Williamsburg, Virginia 23187-8795, United States
| | - Elizabeth P Comeau
- Department of Chemistry, William & Mary, Williamsburg, Virginia 23187-8795, United States
| | - Sonali K Dabhi
- Department of Chemistry, William & Mary, Williamsburg, Virginia 23187-8795, United States
| | - Eleanor G Graber
- Department of Chemistry, William & Mary, Williamsburg, Virginia 23187-8795, United States
| | - Thomas H Joyce
- Department of Chemistry, William & Mary, Williamsburg, Virginia 23187-8795, United States
| | - Isabelle N Maricar
- Department of Chemistry, William & Mary, Williamsburg, Virginia 23187-8795, United States
| | - Brianna N Pinckney
- Department of Chemistry, William & Mary, Williamsburg, Virginia 23187-8795, United States
| | - Devika Puri
- Department of Chemistry, William & Mary, Williamsburg, Virginia 23187-8795, United States
| | - Tayli B Shekleton
- Department of Chemistry, William & Mary, Williamsburg, Virginia 23187-8795, United States
| | - Quyen Beatrice T Tran
- Department of Chemistry, William & Mary, Williamsburg, Virginia 23187-8795, United States
| | - Elizabeth J Harbron
- Department of Chemistry, William & Mary, Williamsburg, Virginia 23187-8795, United States
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2
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Ceccon L, Cavalli E, Ruggieri S, Bettinelli M, Piccinelli F. Circularly Polarized Luminescence from Pure and Eu-Doped Trigonal TbPO 4· nH 2O Nanocrystals. Inorg Chem 2024; 63:13636-13643. [PMID: 38984766 DOI: 10.1021/acs.inorgchem.4c01869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/11/2024]
Abstract
In this contribution, we describe the preparation, by means of a precipitation reaction from aqueous solution at 40 °C, and the structural characterization of nanocrystalline powders of trigonal Tb1-xEuxPO4·nH2O (with x = 0, 0.005, 0.01, 0.05, and 0.1; n tentatively assigned as 0.67) which crystallize in the two possible P3121 or P3221 enantiomorphic space groups. While the volume of the crystal lattice is not significantly affected by the Tb3+/Eu3+ substitution, the average crystallite size seems to depend on the Eu3+ dopant concentration and ranges from 13 to 30 nm. The desired handedness of the crystals has been induced by using, during the synthesis, one of the two possible enantiomers of tartaric acid (l or d). The analysis of the luminescence excitation and emission spectra, together with the decay kinetics of the 5D4 Tb3+ excited state, suggests the presence of a very efficient Tb3+ → Eu3+ energy transfer process in the Eu3+-doped orthophosphates. Upon excitation of Tb3+ ions at 368 nm, the enantiomorphic powders grown with l- or d-tartaric acid (i.e., l-TbPO4·0.67H2O/d-TbPO4·0.67H2O, l-Tb0.995Eu0.005PO4·0.67H2O/d-Tb0.995Eu0.005PO4·0.67H2O, and l-Tb0.9Eu0.1PO4·0.67H2O/d-Tb0.9Eu0.1PO4·0.67H2O) exhibited mirror circularly polarized luminescence signals in the visible spectral region (in the green and/or in the red).
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Affiliation(s)
- Leonardo Ceccon
- Luminescent Materials Laboratory, DB, University of Verona, and INSTM, UdR Verona, Strada Le Grazie 15, Verona 37134, Italy
| | - Enrico Cavalli
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parco Area delle Scienze 17/a, Parma 43124, Italy
| | - Silvia Ruggieri
- Luminescent Materials Laboratory, DB, University of Verona, and INSTM, UdR Verona, Strada Le Grazie 15, Verona 37134, Italy
| | - Marco Bettinelli
- Luminescent Materials Laboratory, DB, University of Verona, and INSTM, UdR Verona, Strada Le Grazie 15, Verona 37134, Italy
| | - Fabio Piccinelli
- Luminescent Materials Laboratory, DB, University of Verona, and INSTM, UdR Verona, Strada Le Grazie 15, Verona 37134, Italy
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3
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Trends in advanced materials for the fabrication of insulin electrochemical immunosensors. CHEMICAL PAPERS 2022. [DOI: 10.1007/s11696-022-02416-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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4
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Wu Y, Shi C, Wang G, Sun H, Yin S. Recent Advances in the Development and Applications of Conjugated Polymer dots. J Mater Chem B 2022; 10:2995-3015. [DOI: 10.1039/d1tb02816b] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Conjugated polymer dots or semiconducting polymer nanoparticles (Pdots) are nanoparticles prepared based on organic polymers. Pdots have the advantages of lower cost, simple preparation process, good biocompatibility, excellent stability, easy...
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5
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Zhang Q, Hu X, Dai X, Ling P, Sun J, Chen H, Gao F. General Strategy to Achieve Color-Tunable Ratiometric Two-Photon Integrated Single Semiconducting Polymer Dot for Imaging Hypochlorous Acid. ACS NANO 2021; 15:13633-13645. [PMID: 34374516 DOI: 10.1021/acsnano.1c04581] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
It is highly desired and challenging to construct integrated (all-in-one) single semiconducting-polymer-derived dot (Pdot) without any postmodification but with desired performances for bioapplications. In this work, eight hypochlorous acid (HClO)-sensitive integrated polymers and corresponding polymer-derived Pdots are designed through molecular engineering to comparatively study their analytical performances for detecting and imaging HClO. The optimized polymers-derived Pdots are obtained through regulating donor-acceptor structure, the content of HClO-sensitive units, and the position of HClO-sensitive units in the polymer backbone. The designed Pdots display distinguished characteristics including multicolours with blue, yellow, and red three primary fluorescence colors, determination mode from single-channel to dual-channel (ratiometric) quantification, ultrafast response, low detection limit, and high selectivity for ClO- sensing based on specific oxidation of ClO--sensitive unit 10-methylphenothiazine (PT) accompanied by altering the intramolecular charge transfer (ICT) and fluorescence resonance energy transfer (FRET) processes in Pdots. The prepared integrated Pdots are also applied for two-photon ClO- imaging in HeLa cells and one- and two-photon ClO- imaging produced in acute inflammation in mice with satisfactory results. We believe that the present study not only provides excellent integrated fluorescent nanoprobes for ClO- monitoring in living systems but also extends a general strategy for designing integrated semiconducting polymers and Pdots with desired performances for biological applications.
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Affiliation(s)
- Qiang Zhang
- Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Chemo/Biosensing, Laboratory of Biosensing and Bioimaging (LOBAB), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, People's Republic of China
| | - Xiaoxiao Hu
- Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Chemo/Biosensing, Laboratory of Biosensing and Bioimaging (LOBAB), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, People's Republic of China
| | - Xiaomei Dai
- Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Chemo/Biosensing, Laboratory of Biosensing and Bioimaging (LOBAB), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, People's Republic of China
| | - Pinghua Ling
- Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Chemo/Biosensing, Laboratory of Biosensing and Bioimaging (LOBAB), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, People's Republic of China
| | - Junyong Sun
- Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Chemo/Biosensing, Laboratory of Biosensing and Bioimaging (LOBAB), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, People's Republic of China
| | - Hongqi Chen
- Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Chemo/Biosensing, Laboratory of Biosensing and Bioimaging (LOBAB), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, People's Republic of China
| | - Feng Gao
- Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Chemo/Biosensing, Laboratory of Biosensing and Bioimaging (LOBAB), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, People's Republic of China
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Xie M, Hua Y, Hong D, Wan S, Tian Y. Physical insights into protection effect of conjugated polymers by natural antioxidants. RSC Adv 2021; 11:1614-1622. [PMID: 35424094 PMCID: PMC8693752 DOI: 10.1039/d0ra09657a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Accepted: 12/17/2020] [Indexed: 11/21/2022] Open
Abstract
Conjugated polymers (CPs) known as organic semiconductors have been broadly applied in photovoltaic and light emitting devices due to their easy fabrication and flexibility. However, one of the bottlenecks limiting the application of CPs is their poor photostability upon continuous excitation which is one of the crucial parameters of CPs. How to improve the photostability of CPs is always one of the key questions in this field. In this work, we found that the photostability of poly(3-hexylthiophene-2,5-diyl) (P3HT) molecules can be largely improved by addition of vitamin E (VE) in bulk solution, solid films and single molecules. In solution and films, VE can not only significantly retard the photodegradation of P3HT but also enhance the fluorescence intensity. For individual P3HT molecules, with increasing VE concentrations, the on-time duration increases and the off-time duration becomes shorter. VE as natural antioxidants can not only donate electrons to the long-lived charged species but also quench the triplet states of CPs via energy transfer accelerating the depopulation process back to the ground state. The short duration time of the charged species and the triplet states provides higher fluorescence intensity. Furthermore, VE can also directly react with singlet oxygen or other reactive oxygen species (ROS) preventing them from reacting with CPs. These results not only provide an efficient strategy for improving the photostability of conjugated polymers in solution and films, but also shed light on better understanding the photophysics of conjugated polymers at single-molecule level.
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Affiliation(s)
- Mingcai Xie
- Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Jiangsu Key Laboratory of Vehicle Emissions Control, Nanjing University Nanjing China
| | - Yan Hua
- Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Jiangsu Key Laboratory of Vehicle Emissions Control, Nanjing University Nanjing China
| | - Daocheng Hong
- Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Jiangsu Key Laboratory of Vehicle Emissions Control, Nanjing University Nanjing China
| | - Sushu Wan
- Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Jiangsu Key Laboratory of Vehicle Emissions Control, Nanjing University Nanjing China
| | - Yuxi Tian
- Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Jiangsu Key Laboratory of Vehicle Emissions Control, Nanjing University Nanjing China
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Sun J, Zhang Q, Dai X, Ling P, Gao F. Engineering fluorescent semiconducting polymer nanoparticles for biological applications and beyond. Chem Commun (Camb) 2021; 57:1989-2004. [DOI: 10.1039/d0cc07182j] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
We summarize the recent advances in engineering approaches to obtain functionalized semiconducting polymer nanoparticles (SPNs) for biological applications. The challenges and outlook of fabricating functionalized SPNs are also provided.
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Affiliation(s)
- Junyong Sun
- Laboratory of Functionalized Molecular Solids
- Ministry of Education
- Anhui Key Laboratory of Chemo/Biosensing
- Laboratory of Biosensing and Bioimaging (LOBAB)
- College of Chemistry and Materials Science
| | - Qiang Zhang
- Laboratory of Functionalized Molecular Solids
- Ministry of Education
- Anhui Key Laboratory of Chemo/Biosensing
- Laboratory of Biosensing and Bioimaging (LOBAB)
- College of Chemistry and Materials Science
| | - Xiaomei Dai
- Laboratory of Functionalized Molecular Solids
- Ministry of Education
- Anhui Key Laboratory of Chemo/Biosensing
- Laboratory of Biosensing and Bioimaging (LOBAB)
- College of Chemistry and Materials Science
| | - Pinghua Ling
- Laboratory of Functionalized Molecular Solids
- Ministry of Education
- Anhui Key Laboratory of Chemo/Biosensing
- Laboratory of Biosensing and Bioimaging (LOBAB)
- College of Chemistry and Materials Science
| | - Feng Gao
- Laboratory of Functionalized Molecular Solids
- Ministry of Education
- Anhui Key Laboratory of Chemo/Biosensing
- Laboratory of Biosensing and Bioimaging (LOBAB)
- College of Chemistry and Materials Science
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8
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MacKenzie LE, Pal R. Circularly polarized lanthanide luminescence for advanced security inks. Nat Rev Chem 2020; 5:109-124. [PMID: 37117607 DOI: 10.1038/s41570-020-00235-4] [Citation(s) in RCA: 178] [Impact Index Per Article: 44.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/28/2020] [Indexed: 02/07/2023]
Abstract
Authenticating products and documents with security inks is vital to global commerce, security and health. Lanthanide complexes are widely used in luminescent security inks owing to their unique and robust photophysical properties. Lanthanide complexes can also be engineered to undergo circularly polarized luminescence (CPL), which encodes chiral molecular fingerprints in luminescence spectra that cannot be decoded by conventional optical measurements. However, chiral CPL signals have not yet been exploited as an extra security layer in advanced security inks. This Review introduces CPL and related concepts that are necessary to appreciate the challenges and potential of lanthanide-based, CPL-active security inks. We describe recent advances in CPL analysis and read-out technologies that have expedited CPL-active security ink applications. Further, we provide a systematic meta-analysis of strongly CPL-active Euiii, Tbiii, Smiii, Ybiii, Cmiii, Dyiii and Criii complexes, discussing the suitability of their photophysical properties and highlighting promising candidates. We conclude by providing key recommendations for the development and advancement of the field.
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9
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Demchenko AP. Photobleaching of organic fluorophores: quantitative characterization, mechanisms, protection. Methods Appl Fluoresc 2020; 8:022001. [PMID: 32028269 DOI: 10.1088/2050-6120/ab7365] [Citation(s) in RCA: 106] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Photochemical stability is one of the most important parameters that determine the usefulness of organic dyes in different applications. This Review addresses key factors that determine the dye photostability. It is shown that photodegradation can follow different oxygen-dependent and oxygen-independent mechanisms and may involve both 1S1-3T1 and higher-energy 1Sn-3Tn excited states. Their involvement and contribution depends on dye structure, medium conditions, irradiation power. Fluorescein, rhodamine, BODIPY and cyanine dyes, as well as conjugated polymers are discussed as selected examples illustrating photobleaching mechanisms. The strategies for modulating and improving the photostability are overviewed. They include the improvement of fluorophore design, particularly by attaching protective and anti-fading groups, creating proper medium conditions in liquid, solid and nanoscale environments. The special conditions for biological labeling, sensing and imaging are outlined.
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Affiliation(s)
- Alexander P Demchenko
- Palladin Institute of Biochemistry, Leontovicha st. 9, Kyiv 01030, Ukraine. Yuriy Fedkovych National University, Chernivtsi, 58012, Ukraine
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10
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Gallastegui A, Spada RM, Cagnetta G, Ponzio RA, Martínez SR, Previtali CM, Gómez ML, Palacios RE, Chesta CA. Conjugated Polymer Nanoparticles as Unique Coinitiator-Free, Water-Soluble, Visible-Light Photoinitiators of Vinyl Polymerization. Macromol Rapid Commun 2020; 41:e1900601. [PMID: 32053268 DOI: 10.1002/marc.201900601] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 01/09/2020] [Indexed: 12/13/2022]
Abstract
The use of conjugated polymer nanoparticles (CP NPs) of poly(9,9-dioctylfluorene-alt-benzothiadiazole) and poly(9,9-di-n-octylfluorenyl-2,7-diyl) as efficient photoinitiator systems (PIS) of vinyl polymerization in water is reported herein. CP NPs are biocompatible, excitable with blue commercial LEDs and, unlike visible light Type II PIS, do not need co-initiators to trigger a monomer chain reaction. CP NPs photoinitiate polymerization of a variety of acrylic monomers with initiation rates comparable to those observed for well-known Type II PIS. Given the extraordinarily large molar absorption coefficients of CP NPs (≈108 m-1 cm-1 ) very low particle concentration is required for effective polymerization. Additionally, CP NPs behave as conventional macrophotoinitiators significantly reducing contamination risks due to leaching of low molecular weight byproducts. These combined features make CP NPs PIS suitable to synthesize polymeric materials for many healthcare and biomedical applications including drug delivery, tissue engineering, prosthetic implants, and food/medicine packaging. These CP NPs PIS are also used to synthesize nano-hydrogels with a relatively narrow and controlled size distribution in the absence of surfactants. It is proposed that polymerization is initiated at the CP NPs surface by photogenerated free polarons, in close analogy to the mechanism previously described for PIS based on inorganic semiconductor NPs.
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Affiliation(s)
- Antonela Gallastegui
- Instituto de Investigaciones en Tecnologías Energéticas y Materiales Avanzados (IITEMA), Universidad Nacional de Río Cuarto (UNRC) and Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Campus Universitario, 5800, Río Cuarto, Argentina
| | - Ramiro M Spada
- Instituto de Investigaciones en Tecnologías Energéticas y Materiales Avanzados (IITEMA), Universidad Nacional de Río Cuarto (UNRC) and Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Campus Universitario, 5800, Río Cuarto, Argentina
| | - Gonzalo Cagnetta
- Instituto de Investigaciones en Tecnologías Energéticas y Materiales Avanzados (IITEMA), Universidad Nacional de Río Cuarto (UNRC) and Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Campus Universitario, 5800, Río Cuarto, Argentina
| | - Rodrigo A Ponzio
- Instituto de Investigaciones en Tecnologías Energéticas y Materiales Avanzados (IITEMA), Universidad Nacional de Río Cuarto (UNRC) and Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Campus Universitario, 5800, Río Cuarto, Argentina
| | - Sol R Martínez
- Instituto de Investigaciones en Tecnologías Energéticas y Materiales Avanzados (IITEMA), Universidad Nacional de Río Cuarto (UNRC) and Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Campus Universitario, 5800, Río Cuarto, Argentina
| | - Carlos M Previtali
- Instituto de Investigaciones en Tecnologías Energéticas y Materiales Avanzados (IITEMA), Universidad Nacional de Río Cuarto (UNRC) and Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Campus Universitario, 5800, Río Cuarto, Argentina
| | - María Lorena Gómez
- Instituto de Investigaciones en Tecnologías Energéticas y Materiales Avanzados (IITEMA), Universidad Nacional de Río Cuarto (UNRC) and Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Campus Universitario, 5800, Río Cuarto, Argentina
| | - Rodrigo E Palacios
- Instituto de Investigaciones en Tecnologías Energéticas y Materiales Avanzados (IITEMA), Universidad Nacional de Río Cuarto (UNRC) and Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Campus Universitario, 5800, Río Cuarto, Argentina
| | - Carlos A Chesta
- Instituto de Investigaciones en Tecnologías Energéticas y Materiales Avanzados (IITEMA), Universidad Nacional de Río Cuarto (UNRC) and Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Campus Universitario, 5800, Río Cuarto, Argentina
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11
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Han Y, Chen T, Li Y, Chen L, Wei L, Xiao L. Single-Particle Enumeration-Based Sensitive Glutathione S-Transferase Assay with Fluorescent Conjugated Polymer Nanoparticle. Anal Chem 2019; 91:11146-11153. [DOI: 10.1021/acs.analchem.9b01849] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Yameng Han
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Tianyu Chen
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Yiliang Li
- Department of Rehabilitation Medicine, The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen, Guangdong, 518033, China
| | - Langxing Chen
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Lin Wei
- Key Laboratory of Phytochemical R&D of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, 410081, China
| | - Lehui Xiao
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University, Tianjin, 300071, China
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12
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Luo X, Meng J, Li B, Peng A, Tian Z. Development of fluorescent nanoparticles with aggregation-induced delayed fluorescence features, improved brightness and photostability for living cells imaging. NEW J CHEM 2019. [DOI: 10.1039/c9nj01945f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bright, photostable fluorescent nanoparticles with long fluorescence lifetimes were fabricated based on fluorophores with AIE and TADF characteristics for bioimaging.
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Affiliation(s)
- Xiaofeng Luo
- School of Chemical Sciences and Optoelectronic Technology
- University of Chinese Academy of Sciences (UCAS)
- Beijing 100049
- P. R. China
| | - Jiaqi Meng
- School of Chemical Sciences and Optoelectronic Technology
- University of Chinese Academy of Sciences (UCAS)
- Beijing 100049
- P. R. China
| | - Baolin Li
- School of Chemical Sciences and Optoelectronic Technology
- University of Chinese Academy of Sciences (UCAS)
- Beijing 100049
- P. R. China
| | - Aidong Peng
- College of Materials Science and Optoelectronic Technology
- University of Chinese Academy of Sciences (UCAS)
- Beijing 100049
- P. R. China
| | - Zhiyuan Tian
- School of Chemical Sciences and Optoelectronic Technology
- University of Chinese Academy of Sciences (UCAS)
- Beijing 100049
- P. R. China
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Kuo CT, Wu IC, Chen L, Yu J, Wu L, Chiu DT. Improving the Photostability of Semiconducting Polymer Dots Using Buffers. Anal Chem 2018; 90:11785-11790. [PMID: 30277754 DOI: 10.1021/acs.analchem.8b03104] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The photostability of fluorescent probes is critical in biological imaging, especially for long-term observational analyses. Here, we describe a simple and universal method to improve the photostability of semiconducting polymer dots (Pdots) and other fluorescent probes by using buffers. Using Pdots as a model system, we found that HEPES or MES buffer can improve the photostability of Pdots by a factor of 20. Through a systematic study, we show that Pdot photobleaching is dominated by photoinduced radicals which can be quenched by the piperazine or morpholine structures of these buffers, which act as radical scavengers. For conditions where choice of buffer is limited, we designed fluorescent polymers conjugated with radical scavengers to improve Pdot photostability. We then demonstrate a practical application in which HEPES buffer is used to improve the photostability of Pdots during cell imaging.
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Affiliation(s)
- Chun-Ting Kuo
- Departments of Chemistry and Bioengineering , University of Washington , Seattle , Washington 98195 , United States
| | - I-Che Wu
- Departments of Chemistry and Bioengineering , University of Washington , Seattle , Washington 98195 , United States
| | - Lei Chen
- Departments of Chemistry and Bioengineering , University of Washington , Seattle , Washington 98195 , United States
| | - Jiangbo Yu
- Departments of Chemistry and Bioengineering , University of Washington , Seattle , Washington 98195 , United States
| | - Li Wu
- Departments of Chemistry and Bioengineering , University of Washington , Seattle , Washington 98195 , United States
| | - Daniel T Chiu
- Departments of Chemistry and Bioengineering , University of Washington , Seattle , Washington 98195 , United States
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14
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Yu J, Rong Y, Kuo CT, Zhou XH, Chiu DT. Recent Advances in the Development of Highly Luminescent Semiconducting Polymer Dots and Nanoparticles for Biological Imaging and Medicine. Anal Chem 2017; 89:42-56. [PMID: 28105818 PMCID: PMC5682631 DOI: 10.1021/acs.analchem.6b04672] [Citation(s) in RCA: 169] [Impact Index Per Article: 24.1] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Jiangbo Yu
- Department of Chemistry, University of Washington, Seattle, Washington 98195, United States
| | - Yu Rong
- Department of Chemistry, University of Washington, Seattle, Washington 98195, United States
| | - Chun-Ting Kuo
- Department of Chemistry, University of Washington, Seattle, Washington 98195, United States
| | - Xing-Hua Zhou
- Department of Chemistry, University of Washington, Seattle, Washington 98195, United States
| | - Daniel T. Chiu
- Department of Chemistry, University of Washington, Seattle, Washington 98195, United States
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15
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Calver CF, Lago BA, Schanze KS, Cosa G. Enhancing the photostability of poly(phenylene ethynylene) for single particle studies. Photochem Photobiol Sci 2017; 16:1821-1831. [DOI: 10.1039/c7pp00276a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Enhanced photostability of conjugated polyelectrolytes achieved by using anti-fading agents opens the way for advanced single molecule fluorescence imaging studies.
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Affiliation(s)
- C. F. Calver
- Department of Chemistry and Centre for Self-Assembled Chemical Structures (CSACS/CRMAA)
- McGill University
- Montreal
- Canada
| | - B. A. Lago
- Department of Chemistry and Centre for Self-Assembled Chemical Structures (CSACS/CRMAA)
- McGill University
- Montreal
- Canada
| | - K. S. Schanze
- Department of Chemistry
- University of Texas at San Antonio
- San Antonio
- USA
| | - G. Cosa
- Department of Chemistry and Centre for Self-Assembled Chemical Structures (CSACS/CRMAA)
- McGill University
- Montreal
- Canada
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16
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Gao Z, Hao Y, Zheng M, Chen Y. A fluorescent dye with large Stokes shift and high stability: synthesis and application to live cell imaging. RSC Adv 2017. [DOI: 10.1039/c6ra27547h] [Citation(s) in RCA: 85] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Abstract
A new fluorescent dye with large Stokes shift and excellent photo-stability for live cell imaging has been developed.
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Affiliation(s)
- Zheng Gao
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing
- China
| | - Yongcao Hao
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing
- China
| | - Meiling Zheng
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing
- China
| | - Yi Chen
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing
- China
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17
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Jiang Y, McNeill J. Light-Harvesting and Amplified Energy Transfer in Conjugated Polymer Nanoparticles. Chem Rev 2016; 117:838-859. [DOI: 10.1021/acs.chemrev.6b00419] [Citation(s) in RCA: 168] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Yifei Jiang
- Department of Chemistry, Clemson University, Clemson, South Carolina 29634, United States
| | - Jason McNeill
- Department of Chemistry, Clemson University, Clemson, South Carolina 29634, United States
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18
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Sun Z, Liu S, Liu Z, Qin W, Chen D, Xu G, Wu C. FRET acceptor suppressed single-particle photobleaching in semiconductor polymer dots. OPTICS LETTERS 2016; 41:2370-3. [PMID: 27177005 DOI: 10.1364/ol.41.002370] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Brightness and photostability are key parameters for fluorescent probes in optical imaging. This Letter describes Förster resonance energy transfer (FRET) as a useful strategy to enhance the photostability of fluorescent nanoparticles. Small molecules as FRET acceptors were doped into semiconductor polymer dots (Pdots), yielding apparent suppression of their rapid photobleaching in single-particle imaging. For 20 nm-diameter particles, the photobleaching percentage decreased from 71.8% to 47.2% after dye doping, while the single-particle brightness remained unchanged. The photostability of large Pdots was also enhanced by FRET at the expense of a moderate decrease in per-particle brightness as compared to the pure Pdots. This study indicates that FRET is a facile, yet effective, approach to mediate the brightness and photostability of fluorescent nanoparticles. Considering the combined factors of brightness and photostability, the dye-doped Pdots of ∼20 nm diameter are the most suitable for long-term imaging and tracking applications.
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19
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Poly[(9,9-dioctyl-fluorenyl-2,7-diyl)-co-fluorenone]-based orange fluorescence probe for cellular imaging. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.03.034] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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20
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Zhang X, Chamberlayne CF, Kurimoto A, Frank NL, Harbron EJ. Visible light photoswitching of conjugated polymer nanoparticle fluorescence. Chem Commun (Camb) 2016; 52:4144-7. [DOI: 10.1039/c6cc00001k] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Conjugated polymer nanoparticles doped with a reverse photochromic dye exhibit highly quenched fluorescence that can be reversibly activated by controlling the form of the photochrome with visible light.
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Affiliation(s)
- Xinzi Zhang
- Department of Chemistry
- The College of William and Mary
- Williamsburg
- USA
| | | | - Aiko Kurimoto
- Department of Chemistry
- University of Victoria
- Victoria
- Canada
| | - Natia L. Frank
- Department of Chemistry
- University of Victoria
- Victoria
- Canada
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21
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Opposite effects of a singlet oxygen quencher on photochemical degradation of dicyano-substituted poly(phenylenevinylenes) with different side chains. Polym Degrad Stab 2015. [DOI: 10.1016/j.polymdegradstab.2015.10.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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22
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Lv Y, Liu P, Ding H, Wu Y, Yan Y, Liu H, Wang X, Huang F, Zhao Y, Tian Z. Conjugated Polymer-Based Hybrid Nanoparticles with Two-Photon Excitation and Near-Infrared Emission Features for Fluorescence Bioimaging within the Biological Window. ACS APPLIED MATERIALS & INTERFACES 2015; 7:20640-20648. [PMID: 26340609 DOI: 10.1021/acsami.5b05150] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Hybrid fluorescent nanoparticles (NPs) capable of fluorescing near-infrared (NIR) light (centered ∼730 nm) upon excitation of 800 nm laser light were constructed. A new type of conjugated polymer with two-photon excited fluorescence (TPEF) feature, P-F8-DPSB, was used as the NIR-light harvesting component and the energy donor while a NIR fluorescent dye, DPA-PR-PDI, was used as the energy acceptor and the NIR-light emitting component for the construction of the fluorescent NPs. The hybrid NPs possess δ value up to 2.3 × 10(6) GM per particle upon excitation of 800 nm pulse laser. The excellent two-photon absorption (TPA) property of the conjugated polymer component, together with its high fluorescence quantum yield (ϕ) up to 45% and the efficient energy transfer from the conjugated polymer to NIR-emitting fluorophore with efficiency up to 90%, imparted the hybrid NPs with TPEF-based NIR-input-NIR-output fluorescence imaging ability with penetration depth up to 1200 μm. The practicability of the hybrid NPs for fluorescence imaging in Hela cells was validated.
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Affiliation(s)
- Yanlin Lv
- School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences (UCAS) , Beijing 100049, China
| | - Peng Liu
- Institute of Polymer Optoelectronic Materials & Devices, State Key Laboratory of Luminescent Materials & Devices, South China University of Technology , Guangzhou, 510640, China
| | - Hui Ding
- School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences (UCAS) , Beijing 100049, China
| | - Yishi Wu
- Beijing National Laboratory for Molecular Science (BNLMS) and Key Laboratory for Photochemistry, Institute of Chemistry Chinese Academy of Sciences , Beijing, 100190, China
| | - Yongli Yan
- Beijing National Laboratory for Molecular Science (BNLMS) and Key Laboratory for Photochemistry, Institute of Chemistry Chinese Academy of Sciences , Beijing, 100190, China
| | - Heng Liu
- School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences (UCAS) , Beijing 100049, China
| | - Xuefei Wang
- School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences (UCAS) , Beijing 100049, China
| | - Fei Huang
- Institute of Polymer Optoelectronic Materials & Devices, State Key Laboratory of Luminescent Materials & Devices, South China University of Technology , Guangzhou, 510640, China
| | - Yongsheng Zhao
- Beijing National Laboratory for Molecular Science (BNLMS) and Key Laboratory for Photochemistry, Institute of Chemistry Chinese Academy of Sciences , Beijing, 100190, China
| | - Zhiyuan Tian
- School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences (UCAS) , Beijing 100049, China
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23
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Ye X, Zhang J, Chen H, Wang X, Huang F. Fluorescent nanomicelles for selective detection of Sudan dye in Pluronic F127 aqueous media. ACS APPLIED MATERIALS & INTERFACES 2014; 6:5113-5121. [PMID: 24625370 DOI: 10.1021/am500270a] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Novel self-assembled water-soluble nanomicelles that contain fluorescent conjugated polymers (poly(9,9-dioctylfluorene) (PFO) or poly[2,7-(9,9-dihexylfluorene)-alt-4,4'-phenylether] (PF-PE)) have been obtained and used as the highly sensitive/selective platform for Sudan dye detection. The Fluorescent nanomicelles exhibited a highly selective fluorescence quenching by the prohibited food additive Sudan I, while not for the natural pigments: Capsanthin and Beta-carotene, due to the more suitable matching of the LUMOs (lowest unoccupied molecular orbital) of the conjugated polymers with that of Sudan I molecules. The Stern-Volmer constants (K(SV)) of PF-PE/F127 and PFO/F127 for Sudan I were 1,040,480 and 665,000 M(-1), respectively, which were more than 100 times higher than those of the same conjugated polymers in the orgainc solvents. The significantly enhanced sensitivity was due to the collective effect of the F127 micelles to both chromophore and analyte, through which the fluorophone-analyte binding interaction is significantly strengthened and efficient photoinduced charge transfer occurs. The as-proposed materials and approach may be potentially applied in the real-time food safety screening.
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Affiliation(s)
- Xinliang Ye
- State Key Laboratory of Luminescent Materials and Devices, Institute of Polymer Optoelectronic Materials and Devices, and ‡State Key Laboratory of Pulp & Paper Engineering, School of Light Industry and Food Science, South China University of Technology , Guangzhou 510640, P. R. China
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24
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Wang X, Groff LC, McNeill JD. Photoactivation and saturated emission in blended conjugated polymer nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:13925-31. [PMID: 24099661 DOI: 10.1021/la402767j] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Blended poly[(9,9-dioctylfluorenyl-2,7-diyl)-co-(1,4-benzo-{2,1',3}-thiadiazole)] (PFBT)/poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV) conjugated polymer nanoparticles were prepared and characterized by conventional and single-particle fluorescence spectroscopy. The particles exhibit red emission and improved quantum efficiency resulting from highly efficient energy transfer from donor PFBT to acceptor MEH-PPV as well as suppression of MEH-PPV aggregation. Photobleaching results indicate better photostability in the blended sample compared to undoped MEH-PPV nanoparticles and photoactivation of donor emission, which could be useful for single-molecule localization-based super-resolution microscopy. Single blended nanoparticles exhibit bright fluorescence as well as saturation behavior at very low excitation intensities. These and other properties of the blended conjugated polymer nanoparticles could provide substantial improvements in resolution when employed in super-resolution microscopy.
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Affiliation(s)
- Xiaoli Wang
- Department of Chemistry, Clemson University , Clemson, South Carolina 29634, United States
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25
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Sun W, Yu J, Deng R, Rong Y, Fujimoto B, Wu C, Zhang H, Chiu DT. Semiconducting polymer dots doped with europium complexes showing ultranarrow emission and long luminescence lifetime for time-gated cellular imaging. Angew Chem Int Ed Engl 2013; 52:11294-7. [PMID: 24030955 PMCID: PMC3883514 DOI: 10.1002/anie.201304822] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2013] [Revised: 07/29/2013] [Indexed: 12/26/2022]
Abstract
Bright dots: Semiconducting polymer dots (Pdots) doped with europium complexes possess line-like fluorescence emission, high quantum yield, and long fluorescence lifetime. The Pdots successfully labeled receptors on cells. The long fluorescence lifetime of the Pdots was used to distinguish them from other red fluorescence emitting nanoparticles, and improve the signal-to-noise ratio for time-gated cellular imaging. PVK=poly(9-vinylcarbazole).
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Affiliation(s)
- Wei Sun
- Department of Chemistry, University of Washington Seattle, Washington 98195 (USA)
| | - Jiangbo Yu
- Department of Chemistry, University of Washington Seattle, Washington 98195 (USA)
| | - Ruiping Deng
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Yu Rong
- Department of Chemistry, University of Washington Seattle, Washington 98195 (USA)
| | - Bryant Fujimoto
- Department of Chemistry, University of Washington Seattle, Washington 98195 (USA)
| | - Changfeng Wu
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun, Jilin 130012, China
| | - Hongjie Zhang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Daniel T. Chiu
- Department of Chemistry, University of Washington Seattle, Washington 98195 (USA)
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