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Tian J, Su Z, Jiang X, Zhang B, Yang Y, Li X, Gou G. Mechanofluorochromic behaviors and latent fingerprint detection of triphenylamine-based compounds with mono-/bis-BF 2 fluorophores. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 319:124568. [PMID: 38824757 DOI: 10.1016/j.saa.2024.124568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2024] [Revised: 04/28/2024] [Accepted: 05/29/2024] [Indexed: 06/04/2024]
Abstract
To better understand the relationship between molecular structure of the mono-/bis-BF2-core compounds and mechanofluoroboron behaviors, two pyridine-based difluoroboron compounds with triphenylamine group (TPA-ts-BF2 and TPA-ts-2BF2) were designed and successfully synthesized, which TPA-ts-BF2 including a BF2 fluorophore and TPA-ts-2BF2 containing the bisBF2 fluorophores. Based on the photophysical properties measurements results, it was found that TPA-ts-2BF2 had more excellent intramolecular charge transfer characteristics than that of TPA-ts-BF2, and exhibited significant aggregation-induced emission activity, however, TPA-ts-BF2 displayed typical aggregation-caused quenching phenomenon. Meanwhile, the emission spectrum of the solid powders of TPA-ts-2BF2 was red-shifted 52 nm after grinding, that of TPA-ts-BF2 was red-shifted 46 nm, which was resulted from crystalline state switching to amorphous state. According to the theoretical calculations, we conjectured that TPA-ts-BF2 with uncoordinated amide linkage moiety had a tendency to forming a more twisted conformance and higher molecular polarity, which made that mechanofluorochromic behavior was worse than that of TPA-ts-2BF2. Additionally, TPA-ts-2BF2 was applied to latent fingerprint detection due to its prime aggregation-induced emission property.
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Affiliation(s)
- Jiazhuang Tian
- Yunnan Key Laboratory of Metal-Organic Molecular Materials and Device, School of Chemistry and Chemical Engineering, Kunming University, Kunming 650214, PR China
| | - Zhiyou Su
- Chiral HPLC Laboratory of the Analysis Department, Kanglong Huacheng (Ningbo) Technology Development Co., Ltd, Ningbo 315336, PR China
| | - Xiaozhou Jiang
- Yunnan Key Laboratory of Metal-Organic Molecular Materials and Device, School of Chemistry and Chemical Engineering, Kunming University, Kunming 650214, PR China
| | - Bangcui Zhang
- Yunnan Key Laboratory of Metal-Organic Molecular Materials and Device, School of Chemistry and Chemical Engineering, Kunming University, Kunming 650214, PR China
| | - Yanhua Yang
- Yunnan Key Laboratory of Metal-Organic Molecular Materials and Device, School of Chemistry and Chemical Engineering, Kunming University, Kunming 650214, PR China.
| | - Xiangguang Li
- Yunnan Key Laboratory of Metal-Organic Molecular Materials and Device, School of Chemistry and Chemical Engineering, Kunming University, Kunming 650214, PR China.
| | - Gaozhang Gou
- Key Laboratory of Natural Pharmaceutical & Chemical Biology of Yunnan Province, School of Chemistry and Resources Engineering, Honghe University, Mengzi 661100, PR China.
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2
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Rickard AG, Zhuang M, DeRosa CA, Dewhirst MW, Fraser CL, Palmer GM. Quantifying the effects of anesthesia on intracellular oxygen via low-cost portable microscopy using dual-emissive nanoparticles. BIOMEDICAL OPTICS EXPRESS 2022; 13:3869-3881. [PMID: 35991919 PMCID: PMC9352295 DOI: 10.1364/boe.456125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 05/13/2022] [Accepted: 05/17/2022] [Indexed: 06/15/2023]
Abstract
Intracellular oxygenation is an important parameter for numerous biological studies. While there are a variety of methods available for acquiring in vivo measurements of oxygenation in animal models, most are dependent on indirect oxygen measurements, restraints, or anesthetization. A portable microscope system using a Raspberry Pi computer and Pi Camera was developed for attaching to murine dorsal window chambers. Dual-emissive boron nanoparticles were used as an oxygen-sensing probe while mice were imaged in awake and anesthetized states. The portable microscope system avoids altered in vivo measurements due to anesthesia or restraints while enabling increased continual acquisition durations.
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Affiliation(s)
- Ashlyn G. Rickard
- Department of Radiation Oncology, Duke University Medical Center, Durham, NC, USA
| | - Meng Zhuang
- Department of Chemistry, University of Virginia, Charlottesville, VA, USA
| | | | - Mark W. Dewhirst
- Department of Radiation Oncology, Duke University Medical Center, Durham, NC, USA
| | | | - Gregory M. Palmer
- Department of Radiation Oncology, Duke University Medical Center, Durham, NC, USA
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3
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Higino T, França R. Drug-delivery nanoparticles for bone-tissue and dental applications. Biomed Phys Eng Express 2022; 8. [PMID: 35439740 DOI: 10.1088/2057-1976/ac682c] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Accepted: 04/19/2022] [Indexed: 11/11/2022]
Abstract
The use of nanoparticles as biomaterials with applications in the biomedical field is growing every day. These nanomaterials can be used as contrast imaging agents, combination therapy agents, and targeted delivery systems in medicine and dentistry. Usually, nanoparticles are found as synthetic or natural organic materials, such as hydroxyapatite, polymers, and lipids. Besides that, they are could also be inorganic, for instance, metallic or metal-oxide-based particles. These inorganic nanoparticles could additionally present magnetic properties, such as superparamagnetic iron oxide nanoparticles. The use of nanoparticles as drug delivery agents has many advantages, for they help diminish toxicity effects in the body since the drug dose reduces significantly, increases drugs biocompatibility, and helps target drugs to specific organs. As targeted-delivery agents, one of the applications uses nanoparticles as drug delivery particles for bone-tissue to treat cancer, osteoporosis, bone diseases, and dental treatments such as periodontitis. Their application as drug delivery agents requires a good comprehension of the nanoparticle properties and composition, alongside their synthesis and drug attachment characteristics. Properties such as size, shape, core-shell designs, and magnetic characteristics can influence their behavior inside the human body and modify magnetic properties in the case of magnetic nanoparticles. Based on that, many different studies have modified the synthesis methods for these nanoparticles and developed composite systems for therapeutics delivery, adapting, and improving magnetic properties, shell-core designs, and particle size and nanosystems characteristics. This review presents the most recent studies that have been presented with different nanoparticle types and structures for bone and dental drug delivery.
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Affiliation(s)
- Taisa Higino
- Biomedical Engineering Program, University of Manitoba, Winnipeg, Canada
| | - Rodrigo França
- Biomedical Engineering Program, University of Manitoba, Winnipeg, Canada.,Dental Biomaterials Research Lab, Department of Restorative Dentistry, College of Dentistry, University of Manitoba, Winnipeg, Canada
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4
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Wang X, Wang G, Li J, Li X, Zhang K. A simple and straightforward polymer post-modification method for wearable difluoroboron β-diketonate luminescent sensors. POLYMER 2022. [DOI: 10.1016/j.polymer.2021.124449] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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5
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Gao Y, Di X, Wang F, Sun P. Room temperature tunable multicolor phosphorescent polymers for humidity detection and information encryption. RSC Adv 2022; 12:8145-8153. [PMID: 35424729 PMCID: PMC8982396 DOI: 10.1039/d2ra00294a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Accepted: 03/04/2022] [Indexed: 11/21/2022] Open
Abstract
Amorphous polymer-based room temperature phosphorescence (RTP) materials exhibiting tunable emission colors have received tremendous attention and are extremely challenging to prepare. Herein, polyacrylamide-based RTP materials with tunable multicolor emission were prepared via copolymerizing phosphor with concentration dependent luminescence colors and acrylamide with different molar ratios. The hydrogen bonding interactions and chemically crosslinked structures in these polymers effectively restrict the mobility of phosphors and activate efficient RTP emission. The molar ratio of phosphor and acrylamide has a significant influence on the photophysical properties of these polymers, which can be used to fabricate multicolor materials. In addition, the RTP intensity decreases with increasing humidity due to the disassociation of hydrogen bonding by adsorption of water, manifesting as a humidity sensor. Benefiting from the distinguishable RTP lifetimes and the responsiveness to humidity, triple encoding for information encryption is successfully realized. A polymer with tunable multicolor was prepared via copolymerizing a phosphor with concentration dependent luminescence and acrylamide based on chemical crosslinking and hydrogen bonding interactions for humidity detection and information encryption.![]()
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Affiliation(s)
- Yulei Gao
- Key Laboratory of Functional Polymer Materials of Ministry of Education and College of Chemistry, State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, P. R. China
| | - Xiang Di
- Key Laboratory of Functional Polymer Materials of Ministry of Education and College of Chemistry, State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, P. R. China
| | - Fenfen Wang
- Key Laboratory of Functional Polymer Materials of Ministry of Education and College of Chemistry, State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, P. R. China
| | - Pingchuan Sun
- Key Laboratory of Functional Polymer Materials of Ministry of Education and College of Chemistry, State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, P. R. China
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Duarte F, Cuerva C, Fernández-Lodeiro C, Fernández-Lodeiro J, Jiménez R, Cano M, Lodeiro C. Polymer Micro and Nanoparticles Containing B(III) Compounds as Emissive Soft Materials for Cargo Encapsulation and Temperature-Dependent Applications. NANOMATERIALS 2021; 11:nano11123437. [PMID: 34947786 PMCID: PMC8708886 DOI: 10.3390/nano11123437] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Revised: 12/13/2021] [Accepted: 12/14/2021] [Indexed: 12/15/2022]
Abstract
Polymer nanoparticles doped with fluorescent molecules are widely applied for biological assays, local temperature measurements, and other bioimaging applications, overcoming several critical drawbacks, such as dye toxicity, increased water solubility, and allowing imaging of dyes/drug delivery in water. In this work, some polymethylmethacrylate (PMMA), polyvinylpyrrolidone (PVP) and poly(styrene-butadiene-styrene) (SBS) based micro and nanoparticles with an average size of about 200 nm and encapsulating B(III) compounds have been prepared via the reprecipitation method by using tetrahydrofuran as the oil phase and water. The compounds are highly hydrophobic, but their encapsulation into a polymer matrix allows obtaining stable colloidal dispersions in water (3.39 µM) that maintain the photophysical behavior of these dyes. Although thermally activated non-radiative processes occur by increasing temperature from 25 to 80 °C, the colloidal suspension of the B(III) particles continues to emit greenish light (λ = 509 nm) at high temperatures. When samples are cooling back to room temperature, the emission is restored, being reversible. A probe of concept drug delivery study was conducted using coumarin 6 as a prototype of a hydrophobic drug.
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Affiliation(s)
- Frederico Duarte
- BIOSCOPE Research Group, LAQV@REQUIMTE Chemistry Department, NOVA School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal; (F.D.); (J.F.-L.)
| | - Cristián Cuerva
- BIOSCOPE Research Group, LAQV@REQUIMTE Chemistry Department, NOVA School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal; (F.D.); (J.F.-L.)
- MatMoPol Research Group, Department of Inorganic Chemistry, Complutense University of Madrid, Ciudad Universitaria, 28040 Madrid, Spain; (R.J.); (M.C.)
- Correspondence: (C.C.); (C.L.)
| | - Carlos Fernández-Lodeiro
- CINBIO, Departamento de Química Física, Campus Universitario Lagoas Marcosende, Universidade de Vigo, 36310 Vigo, Spain;
- Galicia Sur Health Research Institute (IIS Galicia Sur), SERGAS-UVIGO, 36310 Vigo, Spain
| | - Javier Fernández-Lodeiro
- BIOSCOPE Research Group, LAQV@REQUIMTE Chemistry Department, NOVA School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal; (F.D.); (J.F.-L.)
- PROTEOMASS Scientific Society, Rua dos Inventores, Madam Parque, Caparica Campus, 2829-516 Caparica, Portugal
| | - Raquel Jiménez
- MatMoPol Research Group, Department of Inorganic Chemistry, Complutense University of Madrid, Ciudad Universitaria, 28040 Madrid, Spain; (R.J.); (M.C.)
| | - Mercedes Cano
- MatMoPol Research Group, Department of Inorganic Chemistry, Complutense University of Madrid, Ciudad Universitaria, 28040 Madrid, Spain; (R.J.); (M.C.)
| | - Carlos Lodeiro
- BIOSCOPE Research Group, LAQV@REQUIMTE Chemistry Department, NOVA School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal; (F.D.); (J.F.-L.)
- PROTEOMASS Scientific Society, Rua dos Inventores, Madam Parque, Caparica Campus, 2829-516 Caparica, Portugal
- Correspondence: (C.C.); (C.L.)
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7
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Bou S, Klymchenko AS, Collot M. Fluorescent labeling of biocompatible block copolymers: synthetic strategies and applications in bioimaging. MATERIALS ADVANCES 2021; 2:3213-3233. [PMID: 34124681 PMCID: PMC8142673 DOI: 10.1039/d1ma00110h] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 04/04/2021] [Indexed: 05/27/2023]
Abstract
Among biocompatible materials, block copolymers (BCPs) possess several advantages due to the control of their chemistry and the possibility of combining various blocks with defined properties. Consequently, BCPs drew considerable attention as biocompatible materials in the fields of drug delivery, medicine and bioimaging. Fluorescent labeling of BCPs quickly appeared to be a method of choice to image and track these materials in order to better understand the nature of their interactions with biological media. However, incorporating fluorescent markers (FM) into BCPs can appear tricky; we thus intend to help chemists in this endeavor by reviewing recent advances made in the last 10 years. With the choice of the FM being of prior importance, we first reviewed their photophysical properties and functionalities for optimal labeling and imaging. In the second part the different chemical approaches that have been used in the literature to fluorescently label BCPs have been reviewed. We also report and discuss relevant applications of fluorescent BCPs in bioimaging.
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Affiliation(s)
- Sophie Bou
- Laboratoire de Bioimagerie et Pathologies, UMR 7021, CNRS/Université de Strasbourg 74 route du Rhin 67401 Illkirch-Graffenstaden France
| | - Andrey S Klymchenko
- Laboratoire de Bioimagerie et Pathologies, UMR 7021, CNRS/Université de Strasbourg 74 route du Rhin 67401 Illkirch-Graffenstaden France
| | - Mayeul Collot
- Laboratoire de Bioimagerie et Pathologies, UMR 7021, CNRS/Université de Strasbourg 74 route du Rhin 67401 Illkirch-Graffenstaden France
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8
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Collot M. Recent advances in dioxaborine-based fluorescent materials for bioimaging applications. MATERIALS HORIZONS 2021; 8:501-514. [PMID: 34821266 DOI: 10.1039/d0mh01186j] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Fluorescent materials are continuously contributing to important advances in the field of bioimaging. Among these materials, dioxaborine-based fluorescent materials (DBFM) are arousing growing interest. Due to their rigid structures conferred by a cyclic boron complex, DBFM possess appealing photophysical properties including high extinction coefficients and quantum yields as well as emission in the near infrared, enhanced photostability and high two-photon absorption. We herein discuss the recent advances of DBFM that found use in bioimaging applications. This review covers the development of fluorescent molecular probes for biomolecules (DNA, proteins), small molecules (cysteine, H2O2, oxygen), ions and the environment (polarity, viscosity) as well as polymers and nanomaterials used in bioimaging. This review aims at providing a comprehensive and critical insight on DBFM by highlighting the assets of these promising materials in bioimaging but also by pointing out their limitations that would require further developments.
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Affiliation(s)
- Mayeul Collot
- Laboratoire de Bioimagerie et Pathologies, UMR 7021, CNRS/Université de Strasbourg, 74 route du Rhin, 67401 Illkirch-Graffenstaden, France.
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9
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Zhuang M, Joshi S, Sun H, Batabyal T, Fraser CL, Kapur J. Difluoroboron β-diketonate polylactic acid oxygen nanosensors for intracellular neuronal imaging. Sci Rep 2021; 11:1076. [PMID: 33441771 PMCID: PMC7806623 DOI: 10.1038/s41598-020-80172-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 12/17/2020] [Indexed: 11/08/2022] Open
Abstract
Critical for metabolism, oxygen plays an essential role in maintaining the structure and function of neurons. Oxygen sensing is important in common neurological disorders such as strokes, seizures, or neonatal hypoxic-ischemic injuries, which result from an imbalance between metabolic demand and oxygen supply. Phosphorescence quenching by oxygen provides a non-invasive optical method to measure oxygen levels within cells and tissues. Difluoroboron β-diketonates are a family of luminophores with high quantum yields and tunable fluorescence and phosphorescence when embedded in certain rigid matrices such as poly (lactic acid) (PLA). Boron nanoparticles (BNPs) can be fabricated from dye-PLA materials for oxygen mapping in a variety of biological milieu. These dual-emissive nanoparticles have oxygen-insensitive fluorescence, oxygen-sensitive phosphorescence, and rigid matrix all in one, enabling real-time ratiometric oxygen sensing at micron-level spatial and millisecond-level temporal resolution. In this study, BNPs are applied in mouse brain slices to investigate oxygen distributions and neuronal activity. The optical properties and physical stability of BNPs in a biologically relevant buffer were stable. Primary neuronal cultures were labeled by BNPs and the mitochondria membrane probe MitoTracker Red FM. BNPs were taken up by neuronal cell bodies, at dendrites, and at synapses, and the localization of BNPs was consistent with that of MitoTracker Red FM. The brain slices were stained with the BNPs, and the BNPs did not significantly affect the electrophysiological properties of neurons. Oxygen maps were generated in living brain slices where oxygen is found to be mostly consumed by mitochondria near synapses. Finally, the BNPs exhibited excellent response when the conditions varied from normoxic to hypoxic and when the neuronal activity was increased by increasing K+ concentration. This work demonstrates the capability of BNPs as a non-invasive tool in oxygen sensing and could provide fundamental insight into neuronal mechanisms and excitability research.
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Affiliation(s)
- Meng Zhuang
- Department of Chemistry, University of Virginia, Charlottesville, VA, 22904, USA
| | - Suchitra Joshi
- Department of Neurology, University of Virginia, Charlottesville, VA, 22903, USA
| | - Huayu Sun
- Department of Neurology, University of Virginia, Charlottesville, VA, 22903, USA
| | - Tamal Batabyal
- Department of Neurology, University of Virginia, Charlottesville, VA, 22903, USA
| | - Cassandra L Fraser
- Department of Chemistry, University of Virginia, Charlottesville, VA, 22904, USA.
| | - Jaideep Kapur
- Department of Neurology, University of Virginia, Charlottesville, VA, 22903, USA.
- Department of Neuroscience, University of Virginia, Charlottesville, VA, 22903, USA.
- UVA Brain Institute, University of Virginia, Charlottesville, VA, 22903, USA.
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10
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Ito S, Gon M, Tanaka K, Chujo Y. Recent developments in stimuli-responsive luminescent polymers composed of boron compounds. Polym Chem 2021. [DOI: 10.1039/d1py01170g] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
This review summarizes recent developments in stimuli-responsive luminescent polymers with boron chromophores, including three- and four-coordinated compounds. Sensing mechanisms based on the features of boron and polymer structures are described.
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Affiliation(s)
- Shunichiro Ito
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Masayuki Gon
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Kazuo Tanaka
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Yoshiki Chujo
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
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11
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Belanger MC, Zhuang M, Ball AG, Richey KH, DeRosa CA, Fraser CL, Pompano RR. Labelling primary immune cells using bright blue fluorescent nanoparticles. Biomater Sci 2020; 8:1897-1909. [PMID: 32026891 DOI: 10.1039/c9bm01572h] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Tracking cell movements is an important aspect of many biological studies. Reagents for cell tracking must not alter the biological state of the cell and must be bright enough to be visualized above background autofluorescence, a particular concern when imaging in tissue. Currently there are few reagents compatible with standard UV excitation filter sets (e.g. DAPI) that fulfill those requirements, despite the development of many dyes optimized for violet excitation (405 nm). A family of boron-based fluorescent dyes, difluoroboron β-diketonates, has previously served as bio-imaging reagents with UV excitation, offering high quantum yields and wide excitation peaks. In this study, we investigated the use of one such dye as a potential cell tracking reagent. A library of difluoroboron dibenzoylmethane (BF2dbm) conjugates were synthesized with biocompatible polymers including: poly(l-lactic acid) (PLLA), poly(ε-caprolactone) (PCL), and block copolymers with poly(ethylene glycol) (PEG). Dye-polymer conjugates were fabricated into nanoparticles, which were stable for a week at 37 °C in water and cell culture media, but quickly aggregated in saline. Nanoparticles were used to label primary splenocytes; phagocytic cell types were more effectively labelled. Labelling with nanoparticles did not affect cellular viability, nor basic immune responses. Labelled cells were more easily distinguished when imaged on a live tissue background than those labelled with a commercially available UV-excitable cytoplasmic labelling reagent. The high efficiency in terms of both fluorescence and cellular labelling may allow these nanoparticles to act as a short-term cell labelling strategy while wide excitation peaks offer utility across imaging and analysis platforms.
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Affiliation(s)
- Maura C Belanger
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, USA. and Beirne B. Carter Center for Immunology Research, University of Virginia, Charlottesville, Virginia 22903, USA
| | - Meng Zhuang
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, USA.
| | - Alexander G Ball
- Department of Microbiology Cancer Biology and Immunology, University of Virginia, Charlottesville, Virginia 22903, USA and Beirne B. Carter Center for Immunology Research, University of Virginia, Charlottesville, Virginia 22903, USA
| | - Kristen H Richey
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, USA.
| | - Christopher A DeRosa
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, USA.
| | - Cassandra L Fraser
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, USA.
| | - Rebecca R Pompano
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, USA. and Beirne B. Carter Center for Immunology Research, University of Virginia, Charlottesville, Virginia 22903, USA
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12
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Rickard AG, Zhuang M, DeRosa CA, Zhang X, Dewhirst MW, Fraser CL, Palmer GM. Dual-emissive, oxygen-sensing boron nanoparticles quantify oxygen consumption rate in breast cancer cells. JOURNAL OF BIOMEDICAL OPTICS 2020; 25:JBO-200174RR. [PMID: 33231018 PMCID: PMC7682476 DOI: 10.1117/1.jbo.25.11.116504] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 10/30/2020] [Indexed: 06/11/2023]
Abstract
SIGNIFICANCE Decreasing the oxygen consumption rate (OCR) of tumor cells is a powerful method for ameliorating tumor hypoxia. However, quantifying the change in OCR is challenging in complex experimental systems. AIM We present a method for quantifying the OCR of two tumor cell lines using oxygen-sensitive dual-emissive boron nanoparticles (BNPs). We hypothesize that our BNP results are equivalent to the standard Seahorse assay. APPROACH We quantified the spectral emissions of the BNP and accounted for external oxygen diffusion to quantify OCR over 24 h. The BNP-computed OCR of two breast cancer cell lines, E0771 and 4T07, were compared with their respective Seahorse assays. Both cell lines were also irradiated to quantify radiation-induced changes in the OCR. RESULTS Using a Bland-Altman analysis, our BNPs OCR was equivalent to the standard Seahorse assay. Moreover, in an additional experiment in which we irradiated the cells at their 50% survival fraction, the BNPs were sensitive enough to quantify 24% reduction in OCR after irradiation. CONCLUSIONS Our results conclude that the BNPs are a viable alternative to the Seahorse assay for quantifying the OCR in cells. The Bland-Altman analysis showed that these two methods result in equivalent OCR measurements. Future studies will extend the OCR measurements to complex systems including 3D cultures and in vivo models, in which OCR measurements cannot currently be made.
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Affiliation(s)
- Ashlyn G. Rickard
- Duke University, Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina, United States
| | - Meng Zhuang
- University of Virginia, Department of Chemistry, Charlottesville, Virginia, United States
| | - Christopher A. DeRosa
- University of Virginia, Department of Chemistry, Charlottesville, Virginia, United States
| | - Xiaojie Zhang
- Duke University, Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina, United States
| | - Mark W. Dewhirst
- Duke University, Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina, United States
| | - Cassandra L. Fraser
- University of Virginia, Department of Chemistry, Charlottesville, Virginia, United States
| | - Gregory M. Palmer
- Duke University, Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina, United States
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13
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Activatable red emitting fluorescent probe for rapid and sensitive detection of intracellular peroxynitrite. Talanta 2020; 217:121053. [DOI: 10.1016/j.talanta.2020.121053] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 04/14/2020] [Accepted: 04/15/2020] [Indexed: 12/21/2022]
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14
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Casalini T, Rossi F, Castrovinci A, Perale G. A Perspective on Polylactic Acid-Based Polymers Use for Nanoparticles Synthesis and Applications. Front Bioeng Biotechnol 2019; 7:259. [PMID: 31681741 PMCID: PMC6797553 DOI: 10.3389/fbioe.2019.00259] [Citation(s) in RCA: 174] [Impact Index Per Article: 34.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Accepted: 09/26/2019] [Indexed: 11/18/2022] Open
Abstract
Polylactic acid (PLA)-based polymers are ubiquitous in the biomedical field thanks to their combination of attractive peculiarities: biocompatibility (degradation products do not elicit critical responses and are easily metabolized by the body), hydrolytic degradation in situ, tailorable properties, and well-established processing technologies. This led to the development of several applications, such as bone fixation screws, bioresorbable suture threads, and stent coating, just to name a few. Nanomedicine could not be unconcerned by PLA-based materials as well, where their use for the synthesis of nanocarriers for the targeted delivery of hydrophobic drugs emerged as a new promising application. The purpose of the here presented review is two-fold: on one side, it aims at providing a broad overview of PLA-based materials and their properties, which allow them gaining a leading role in the biomedical field; on the other side, it offers a specific focus on their recent use in nanomedicine, highlighting opportunities and perspectives.
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Affiliation(s)
- Tommaso Casalini
- Polymer Engineering Laboratory, Department of Innovative Technologies, Institute for Mechanical Engineering and Materials Technology, University of Applied Sciences of Southern Switzerland, Manno, Switzerland
| | - Filippo Rossi
- Department of Chemistry, Materials and Chemical Engineering “Giulio Natta”, Politecnico di Milano, Milan, Italy
| | - Andrea Castrovinci
- Polymer Engineering Laboratory, Department of Innovative Technologies, Institute for Mechanical Engineering and Materials Technology, University of Applied Sciences of Southern Switzerland, Manno, Switzerland
| | - Giuseppe Perale
- Polymer Engineering Laboratory, Department of Innovative Technologies, Institute for Mechanical Engineering and Materials Technology, University of Applied Sciences of Southern Switzerland, Manno, Switzerland
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Vienna, Austria
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15
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Louis M, Piñero García C, Brosseau A, Allain C, Métivier R. Mechanofluorochromism of a Difluoroboron-β-Diketonate Derivative at the Nanoscale. J Phys Chem Lett 2019; 10:4758-4762. [PMID: 31378068 PMCID: PMC6873105 DOI: 10.1021/acs.jpclett.9b01923] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Accepted: 08/04/2019] [Indexed: 06/10/2023]
Abstract
Mechanofluorochromic nanoparticles have been prepared from a difluoroboron β-diketonate complex, and their behavior has been investigated at the nanoscale using atomic force microscopy (AFM) coupled with fluorescence spectroscopy. Two types of nanoparticles were observed, associated with green and yellow emission, reflecting the crystalline polymorphism of this material. While the green-emitting nanoparticles are mechanically insensitive under our conditions, the yellow-emitting ones display a marked hypsochromic shift upon shearing with the AFM tip. At the macroscopic level, the grinding of the bulk material is attributed to the amorphization of the crystalline powder. On the contrary, the marked mechanofluorochromism observed at the nanoscale is attributed to a crystal-to-crystal phase transition. This specific behavior at the nanolevel is extremely promising for applications such as nanoprobes of local mechanical stress.
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16
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Wang X, Anton N, Ashokkumar P, Anton H, Fam TK, Vandamme T, Klymchenko AS, Collot M. Optimizing the Fluorescence Properties of Nanoemulsions for Single Particle Tracking in Live Cells. ACS APPLIED MATERIALS & INTERFACES 2019; 11:13079-13090. [PMID: 30844230 DOI: 10.1021/acsami.8b22297] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Nanoemulsions (NEs) are biocompatible lipid nanoparticles composed of an oily core stabilized by a surfactant shell. It is acknowledged that the surface decoration with poly(ethylene glycol), through the use of nonionic surfactants, confers high stealth in biological medium with reduced nonspecific interactions. Tracking individual NE by fluorescence microscopy techniques would lead to a better understanding of their behavior in cells and thus require the development of bright single particles with enhanced photostability. However, the understanding of the relationship between the physicochemical properties and chemical composition of the NEs, on the one hand, and its fluorescence properties of encapsulated dyes, on the other hand, remains limited. Herein, we synthesized three new dioxaborine barbituryl styryl (DBS) dyes that displayed high molar extinction coefficients (up to 120 000 M-1 cm-1) with relatively low quantum yields in solvents and impressive fluorescence enhancement when dissolved in viscous oils (up to 0.98). The reported screening of nine different oils allowed disclosing a range of efficient "oil/dye" couples and understanding the main parameters that lead to the brightest NEs. We determine vitamin E acetate/DBS-C8 as the representative most efficient couple, combining high dye loading capabilities and low aggregation-induced quenching, leading to <50 nm ultrabright NEs (with brightness as high as 30 × 106 M-1 cm-1) with negligible dye leakage in biological media. Beyond a comprehensive optical and physicochemical characterization of fluorescent NEs, cellular two-photon excitation imaging was performed with polymer-coated cell penetrating NEs. Thanks to their impressive brightness and photostability, NEs displaying different charge surfaces were microinjected in HeLa cells and were individually tracked in the cytosol to study their relative velocity.
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Affiliation(s)
- Xinyue Wang
- Université de Strasbourg, CNRS, CAMB UMR 7199 , F-67000 Strasbourg , France
| | - Nicolas Anton
- Université de Strasbourg, CNRS, CAMB UMR 7199 , F-67000 Strasbourg , France
| | - Pichandi Ashokkumar
- Laboratory of Biophotonic and Pathologies , CNRS UMR 7021, Université de Strasbourg , Faculté de Pharmacie, 74, Route du Rhin , 67401 Illkirch , France
| | - Halina Anton
- Laboratory of Biophotonic and Pathologies , CNRS UMR 7021, Université de Strasbourg , Faculté de Pharmacie, 74, Route du Rhin , 67401 Illkirch , France
| | - Tkhe Kyong Fam
- Laboratory of Biophotonic and Pathologies , CNRS UMR 7021, Université de Strasbourg , Faculté de Pharmacie, 74, Route du Rhin , 67401 Illkirch , France
| | - Thierry Vandamme
- Université de Strasbourg, CNRS, CAMB UMR 7199 , F-67000 Strasbourg , France
| | - Andrey S Klymchenko
- Laboratory of Biophotonic and Pathologies , CNRS UMR 7021, Université de Strasbourg , Faculté de Pharmacie, 74, Route du Rhin , 67401 Illkirch , France
| | - Mayeul Collot
- Laboratory of Biophotonic and Pathologies , CNRS UMR 7021, Université de Strasbourg , Faculté de Pharmacie, 74, Route du Rhin , 67401 Illkirch , France
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17
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Zhuang M, Perkins A, DeRosa CA, Butler T, Demas JN, Fraser CL. Meta
-Dimethoxy-Substituted Difluoroboron Dibenzoylmethane Poly(Lactic Acid) Nanoparticles for Luminescence Anisotropy. MACROMOL CHEM PHYS 2018. [DOI: 10.1002/macp.201800240] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Meng Zhuang
- Department of Chemistry; University of Virginia; Charlottesville VA 22904 USA
| | - Anna Perkins
- Department of Chemistry; University of Virginia; Charlottesville VA 22904 USA
| | | | - Tristan Butler
- Department of Chemistry; University of Virginia; Charlottesville VA 22904 USA
| | - James N. Demas
- Department of Chemistry; University of Virginia; Charlottesville VA 22904 USA
| | - Cassandra L. Fraser
- Department of Chemistry; University of Virginia; Charlottesville VA 22904 USA
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18
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DeRosa CA, Daly ML, Kerr C, Fraser CL. Methoxy‐Substituted Difluoroboron Benzoylacetonate Complexes with Color‐Tunable Phosphorescence. CHEMPHOTOCHEM 2018. [DOI: 10.1002/cptc.201800156] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
| | - Margaret L. Daly
- Department of Chemistry University of Virginia Charlottesville, VA 22904 USA
| | - Caroline Kerr
- Department of Chemistry University of Virginia Charlottesville, VA 22904 USA
| | - Cassandra L. Fraser
- Department of Chemistry University of Virginia Charlottesville, VA 22904 USA
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19
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Tikhonov SA, Svistunova IV, Samoilov IS, Osmushko IS, Borisenko AV, Vovna VI. Electronic structure of binuclear acetylacetonates of boron difluoride. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.02.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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20
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Collot M, Fam TK, Ashokkumar P, Faklaris O, Galli T, Danglot L, Klymchenko AS. Ultrabright and Fluorogenic Probes for Multicolor Imaging and Tracking of Lipid Droplets in Cells and Tissues. J Am Chem Soc 2018; 140:5401-5411. [PMID: 29446627 DOI: 10.1021/jacs.7b12817] [Citation(s) in RCA: 190] [Impact Index Per Article: 31.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Lipid droplets (LDs) are intracellular lipid-rich organelles that regulate the storage of neutral lipids and were recently found to be involved in many physiological processes, metabolic disorders, and diseases including obesity, diabetes, and cancers. Herein we present a family of new fluorogenic merocyanine fluorophores based on an indolenine moiety and a dioxaborine barbiturate derivative. These so-called StatoMerocyanines (SMCy) fluoresce from yellow to the near-infrared (NIR) in oil with an impressive fluorescence enhancement compared to aqueous media. Additionally, SMCy display remarkably high molar extinction coefficients (up to 390 000 M-1 cm-1) and high quantum yield values (up to 100%). All the members of this new family specifically stain the LDs in live cells with very low background noise. Unlike Nile Red, a well-known lipid droplet marker, SMCy dyes possess narrow absorption and emission bands in the visible, thus allowing multicolor imaging. SMCy proved to be compatible with fixation and led to high-quality 3D images of lipid droplets in cells and tissues. Their high brightness allowed efficient tissue imaging of adipocytes and circulating LDs. Moreover their remarkably high two-photon absorption cross-section, especially SMCy5.5 (up to 13 300 GM), as well as their capacity to efficiently fluoresce in the NIR region led to two-photon multicolor tissue imaging (liver). Taking advantage of the available color palette, lipid droplet exchange between cells was tracked and imaged, thus demonstrating intercellular communication.
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Affiliation(s)
- Mayeul Collot
- Laboratoire de Biophotonique et Pharmacologie, CNRS UMR 7213 , Université de Strasbourg, Faculté de Pharmacie , 74, Route du Rhin , 67401 Illkirch , France
| | - Tkhe Kyong Fam
- Laboratoire de Biophotonique et Pharmacologie, CNRS UMR 7213 , Université de Strasbourg, Faculté de Pharmacie , 74, Route du Rhin , 67401 Illkirch , France
| | - Pichandi Ashokkumar
- Laboratoire de Biophotonique et Pharmacologie, CNRS UMR 7213 , Université de Strasbourg, Faculté de Pharmacie , 74, Route du Rhin , 67401 Illkirch , France
| | - Orestis Faklaris
- ImagoSeine Core Facility, Institut Jacques Monod , Université Paris Diderot/CNRS, UMR 7593 , 15 Rue Hélène Brion , 75205 Paris CEDEX 13 , France
| | - Thierry Galli
- INSERM U894 , Centre de Psychiatrie et Neurosciences, "Membrane Traffic in Health and Diseased Brain" Team , 102-108 Rue de la Santé , 75014 Paris , France.,Université Paris Descartes , 75014 Paris , France
| | - Lydia Danglot
- INSERM U894 , Centre de Psychiatrie et Neurosciences, "Membrane Traffic in Health and Diseased Brain" Team , 102-108 Rue de la Santé , 75014 Paris , France.,Université Paris Descartes , 75014 Paris , France
| | - Andrey S Klymchenko
- Laboratoire de Biophotonique et Pharmacologie, CNRS UMR 7213 , Université de Strasbourg, Faculté de Pharmacie , 74, Route du Rhin , 67401 Illkirch , France
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21
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Li L, Cao ZQ, Bao RY, Xie BH, Yang MB, Yang W. Poly(l-lactic acid)-polyethylene glycol-poly(l-lactic acid) triblock copolymer: A novel macromolecular plasticizer to enhance the crystallization of poly(l-lactic acid). Eur Polym J 2017. [DOI: 10.1016/j.eurpolymj.2017.10.025] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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22
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Daly ML, Kerr C, DeRosa CA, Fraser CL. Meta-Alkoxy-Substituted Difluoroboron Dibenzoylmethane Complexes as Environment-Sensitive Materials. ACS APPLIED MATERIALS & INTERFACES 2017; 9:32008-32017. [PMID: 28876889 DOI: 10.1021/acsami.7b06910] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The optical properties of meta-alkoxy-substituted difluoroboron dibenzoylmethane dyes were investigated in solution and in the solid state. Meta-alkoxy substitution induced strong intramolecular charge transfer (ICT) from the oxygen-donating substituent to the halide and boron acceptors in the excited state, as compared to the π-π* transition that is observed with para-alkoxy substitution. The optical properties of para- and meta-substituted alkoxy boron dyes were evaluated by calculations, in dilute solution, and in solid-state films. When embedded in amorphous matrixes (e.g., PLA, PMMA, PS, cholesterol), all dyes showed fluorescence (F) and phosphorescence (P) emission. In this report, we show that meta-substitution resulted in enhanced solvatochromism and an increased phosphorescence-to-fluorescence ratio in solid-state films compared to analogous para-substituted samples. With enhanced phosphorescence intensity via the heavy-atom effect, iodo-substituted dyes were further studied in PLA-PEG nanoparticles. Oxygen calibrations revealed stronger phosphorescence and a greater oxygen-sensing range for the meta- versus para-alkoxy-substituted dyes, features that are important for oxygen-sensing materials design.
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Affiliation(s)
- Margaret L Daly
- Department of Chemistry, University of Virginia , Charlottesville, Virginia 22904, United States
| | - Caroline Kerr
- Department of Chemistry, University of Virginia , Charlottesville, Virginia 22904, United States
| | - Christopher A DeRosa
- Department of Chemistry, University of Virginia , Charlottesville, Virginia 22904, United States
| | - Cassandra L Fraser
- Department of Chemistry, University of Virginia , Charlottesville, Virginia 22904, United States
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23
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Hou M, Dang L, Liu T, Guo Y, Wang Z. Novel Fluorescent Microemulsion: Probing Properties, Investigating Mechanism, and Unveiling Potential Application. ACS APPLIED MATERIALS & INTERFACES 2017; 9:25747-25754. [PMID: 28703570 DOI: 10.1021/acsami.7b05819] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Nanoscale microemulsions have been utilized as delivery carriers for nutraceuticals and active biological drugs. Herein, we designed and synthesized a novel oil in water (O/W) fluorescent microemulsion based on isoamyl acetate, polyoxyethylene castor oil EL (CrEL), and water. The microemulsion emitted bright blue fluorescence, thus exhibiting its potential for active drug detection with label-free strategy. The microemulsion exhibited excitation-dependent emission and distinct red shift with longer excitation wavelengths. Lifetime and quantum yield of fluorescent microemulsion were 2.831 ns and 5.0%, respectively. An excellent fluorescent stability of the microemulsion was confirmed by altering pH, ionic strength, temperature, and time. Moreover, we proposed a probable mechanism of fluorochromic phenomenon, in connection with the aromatic ring structure of polyoxyethylene ether substituent in CrEL. Based on our findings, we concluded that this new fluorescent microemulsion is a promising drug carrier that can facilitate active drug detection with a label-free strategy. Although further research is required to understand the exact mechanism behind its fluorescence property, this work provided valuable guidance to develop new biosensors based on fluorescent microemulsion.
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Affiliation(s)
- Mengna Hou
- School of Chemical Engineering and Technology, Tianjin University , Tianjin 300072, People's Republic of China
| | - Leping Dang
- School of Chemical Engineering and Technology, Tianjin University , Tianjin 300072, People's Republic of China
| | - Tiankuo Liu
- School of Chemical Engineering and Technology, Tianjin University , Tianjin 300072, People's Republic of China
| | - Yun Guo
- School of Chemical Engineering and Technology, Tianjin University , Tianjin 300072, People's Republic of China
| | - Zhanzhong Wang
- School of Chemical Engineering and Technology, Tianjin University , Tianjin 300072, People's Republic of China
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