1
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Kisel KS, Baigildin VA, Mozzhukhina AV, Zharskaia NA, Silonov SA, Shakirova JR, Tunik SP. Biocompatible Re-Containing Block Copolymers for Intracellular pH Mapping in the PLIM Mode. Inorg Chem 2024. [PMID: 39155842 DOI: 10.1021/acs.inorgchem.4c02301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/20/2024]
Abstract
Monitoring of intracellular pH is of great importance since deviation of this parameter from the "normal" magnitudes can be considered as an indicator of various pathologies. Thus, the development of new efficient and biocompatible sensors suitable for application in biological systems and capable of quantitative pH estimation remains an urgent chemical task. Herein, we report the synthesis of a series of phosphorescent rhenium [Re(NN)(CO)2(PR3)2]+ complexes based on the NN diimine ligands containing pH-responsive carboxylic groups and styrene-containing phosphine ligands. The complexes, which display the highest pH sensitivity, were copolymerized with polyvinylpyrrolidone using the RAFT protocol to impart water solubility and to protect the chromophores from interaction with molecular oxygen. The resulting copolymers show an emission lifetime response onto pH variations in the physiological range. Cellular experiments with Chinese hamster ovary cells (CHO-K1) reveal easy internalization of the probes in cell culture and an approximately uniform distribution in cells, with some preference for location in acidic compartments (late endosomes and lysosomes). Using nigericin to homogenize intra- and extracellular pH, we built a calibration of lifetime versus pH in live CHO-K1 cells. Analysis of the phosphorescence lifetime imaging microscopy (PLIM) data confirms the applicability of the obtained sensors for monitoring the intracellular pH in cell cultures.
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Affiliation(s)
- Kristina S Kisel
- Institute of Chemistry, St. Petersburg State University, Universitetskii av., 26, 198504 St. Petersburg, Russia
| | - Vadim A Baigildin
- Institute of Chemistry, St. Petersburg State University, Universitetskii av., 26, 198504 St. Petersburg, Russia
| | - Anna V Mozzhukhina
- Institute of Chemistry, St. Petersburg State University, Universitetskii av., 26, 198504 St. Petersburg, Russia
| | - Nina A Zharskaia
- Institute of Chemistry, St. Petersburg State University, Universitetskii av., 26, 198504 St. Petersburg, Russia
| | - Sergey A Silonov
- Institute of Chemistry, St. Petersburg State University, Universitetskii av., 26, 198504 St. Petersburg, Russia
- Laboratory of Structural Dynamics, Stability and Folding of Proteins, Institute of Cytology, Russian Academy of Sciences, 4 Tikhoretsky Ave., 194064 St. Petersburg, Russia
| | - Julia R Shakirova
- Institute of Chemistry, St. Petersburg State University, Universitetskii av., 26, 198504 St. Petersburg, Russia
| | - Sergey P Tunik
- Institute of Chemistry, St. Petersburg State University, Universitetskii av., 26, 198504 St. Petersburg, Russia
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2
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Baigildin V, Shakirova J, Zharskaia N, Ivanova E, Silonov S, Sokolov V, Tunik S. Design and Preparation of Lifetime-Based Dual Fluorescent/Phosphorescent Sensor of pH and Oxygen and its Exploration in Model Physiological Solutions and Cells. Macromol Biosci 2024:e2400225. [PMID: 38987922 DOI: 10.1002/mabi.202400225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Revised: 06/14/2024] [Indexed: 07/12/2024]
Abstract
In the present report, a novel dual pH-O2 sensor based on covalent conjugate of rhodamine 6G and cyclometalated iridium complex with poly(vinylpyrrolidone-block-vinyltetrazole) copolymer is reported. In model physiological solutions the sensor chromophores display independent phosphorescent and fluorescent lifetime responses onto variations in oxygen concentration and pH, respectively. Colocalization studies on Chinese hamster ovary cells demonstrate the preferential localization in endosomes and lysosomes. The fluorescent lifetime imaging microscopy-phosphorescent lifetime imaging microscopy (FLIM-PLIM) experiments show that the phosphorescent O2 sensor provides unambiguous information onto hypoxia versus normoxia cell status as well as semi-quantitative data on the oxygen concentration in cells in between these two states. However, the results of FLIM measurements indicate that dynamic lifetime interval of the sensor (≈0.5 ns between pH values 5.0 and 8.0) is insufficient even for qualitative estimation of pH in living cells because half-width of lifetime distribution in the studied samples is higher than the sensor dynamic interval. Nevertheless, the variations in rhodamine emission intensity are much higher and allow rough discrimination of acidic and neutral cell conditions. Thus, the results of this study indicate that the suggested approach to the design of dual pH-O2 sensors makes possible to prepare the biocompatible and water-soluble conjugate with fast cellular uptake.
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Affiliation(s)
- Vadim Baigildin
- Institute of Chemistry, Saint-Petersburg State University, Universitetsky Pr. 26, St. Petersburg, 198504, Russia
| | - Julia Shakirova
- Institute of Chemistry, Saint-Petersburg State University, Universitetsky Pr. 26, St. Petersburg, 198504, Russia
| | - Nina Zharskaia
- Institute of Chemistry, Saint-Petersburg State University, Universitetsky Pr. 26, St. Petersburg, 198504, Russia
| | - Elena Ivanova
- Institute of Chemistry, Saint-Petersburg State University, Universitetsky Pr. 26, St. Petersburg, 198504, Russia
| | - Sergey Silonov
- Institute of Chemistry, Saint-Petersburg State University, Universitetsky Pr. 26, St. Petersburg, 198504, Russia
- Laboratory of Structural Dynamics, Stability and Folding of Proteins, Institute of Cytology, Russian Academy of Sciences, 4 Tikhoretsky Ave., St. Petersburg, 194064, Russia
| | - Viktor Sokolov
- Institute of Chemistry, Saint-Petersburg State University, Universitetsky Pr. 26, St. Petersburg, 198504, Russia
| | - Sergey Tunik
- Institute of Chemistry, Saint-Petersburg State University, Universitetsky Pr. 26, St. Petersburg, 198504, Russia
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3
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Barroso M, Monaghan MG, Niesner R, Dmitriev RI. Probing organoid metabolism using fluorescence lifetime imaging microscopy (FLIM): The next frontier of drug discovery and disease understanding. Adv Drug Deliv Rev 2023; 201:115081. [PMID: 37647987 PMCID: PMC10543546 DOI: 10.1016/j.addr.2023.115081] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 04/20/2023] [Accepted: 08/24/2023] [Indexed: 09/01/2023]
Abstract
Organoid models have been used to address important questions in developmental and cancer biology, tissue repair, advanced modelling of disease and therapies, among other bioengineering applications. Such 3D microenvironmental models can investigate the regulation of cell metabolism, and provide key insights into the mechanisms at the basis of cell growth, differentiation, communication, interactions with the environment and cell death. Their accessibility and complexity, based on 3D spatial and temporal heterogeneity, make organoids suitable for the application of novel, dynamic imaging microscopy methods, such as fluorescence lifetime imaging microscopy (FLIM) and related decay time-assessing readouts. Several biomarkers and assays have been proposed to study cell metabolism by FLIM in various organoid models. Herein, we present an expert-opinion discussion on the principles of FLIM and PLIM, instrumentation and data collection and analysis protocols, and general and emerging biosensor-based approaches, to highlight the pioneering work being performed in this field.
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Affiliation(s)
- Margarida Barroso
- Department of Molecular and Cellular Physiology, Albany Medical College, Albany, NY 12208, USA
| | - Michael G Monaghan
- Department of Mechanical, Manufacturing and Biomedical Engineering, Trinity College Dublin, Dublin 02, Ireland
| | - Raluca Niesner
- Dynamic and Functional In Vivo Imaging, Freie Universität Berlin and Biophysical Analytics, German Rheumatism Research Center, Berlin, Germany
| | - Ruslan I Dmitriev
- Tissue Engineering and Biomaterials Group, Department of Human Structure and Repair, Faculty of Medicine and Health Sciences, Ghent University, C. Heymanslaan 10, 9000 Ghent, Belgium; Ghent Light Microscopy Core, Ghent University, 9000 Ghent, Belgium.
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4
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Bleeker J, Kahn AP, Baumgartner LM, Grozema FC, Vermaas DA, Jager WF. Quinolinium-Based Fluorescent Probes for Dynamic pH Monitoring in Aqueous Media at High pH Using Fluorescence Lifetime Imaging. ACS Sens 2023; 8:2050-2059. [PMID: 37128994 DOI: 10.1021/acssensors.3c00316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Spatiotemporal pH imaging using fluorescence lifetime imaging microscopy (FLIM) is an excellent technique for investigating dynamic (electro)chemical processes. However, probes that are responsive at high pH values are not available. Here, we describe the development and application of dedicated pH probes based on the 1-methyl-7-amino-quinolinium fluorophore. The high fluorescence lifetime and quantum yield, the high (photo)stability, and the inherent water solubility make the quinolinium fluorophore well suited for the development of FLIM probes. Due to the flexible fluorophore-spacer-receptor architecture, probe lifetimes are tunable in the pH range between 5.5 and 11. An additional fluorescence lifetime response, at tunable pH values between 11 and 13, is achieved by deprotonation of the aromatic amine at the quinolinium core. Probe lifetimes are hardly affected by temperature and the presence of most inorganic ions, thus making FLIM imaging highly reliable and convenient. At 0.1 mM probe concentrations, imaging at rates of 3 images per second, at a resolution of 4 μm, while measuring pH values up to 12 is achieved. This enables the pH imaging of dynamic electrochemical processes involving chemical reactions and mass transport.
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Affiliation(s)
- Jorrit Bleeker
- Faculty of Applied Sciences, Department of Chemical Engineering, Delft University of Technology, Delft 2629 HZ, The Netherlands
| | - Aron P Kahn
- Faculty of Applied Sciences, Department of Chemical Engineering, Delft University of Technology, Delft 2629 HZ, The Netherlands
| | - Lorenz M Baumgartner
- Faculty of Applied Sciences, Department of Chemical Engineering, Delft University of Technology, Delft 2629 HZ, The Netherlands
| | - Ferdinand C Grozema
- Faculty of Applied Sciences, Department of Chemical Engineering, Delft University of Technology, Delft 2629 HZ, The Netherlands
| | - David A Vermaas
- Faculty of Applied Sciences, Department of Chemical Engineering, Delft University of Technology, Delft 2629 HZ, The Netherlands
| | - Wolter F Jager
- Faculty of Applied Sciences, Department of Chemical Engineering, Delft University of Technology, Delft 2629 HZ, The Netherlands
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5
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Nagler O, Krause AM, Shoyama K, Stolte M, Dubey RK, Liu L, Xie Z, Würthner F. Yellow Light-Emitting Highly Soluble Perylene Bisimide Dyes by Acetalization of Bay-Hydroxy Groups. Org Lett 2022; 24:6839-6844. [DOI: 10.1021/acs.orglett.2c02764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Oliver Nagler
- Center for Nanosystems Chemistry (CNC), Universität Würzburg, 97074 Würzburg, Germany
| | - Ana-Maria Krause
- Center for Nanosystems Chemistry (CNC), Universität Würzburg, 97074 Würzburg, Germany
| | - Kazutaka Shoyama
- Institut für Organische Chemie, Universität Würzburg, 97074 Würzburg, Germany
- Center for Nanosystems Chemistry (CNC), Universität Würzburg, 97074 Würzburg, Germany
| | - Matthias Stolte
- Institut für Organische Chemie, Universität Würzburg, 97074 Würzburg, Germany
- Center for Nanosystems Chemistry (CNC), Universität Würzburg, 97074 Würzburg, Germany
| | - Rajeev K. Dubey
- Institut für Organische Chemie, Universität Würzburg, 97074 Würzburg, Germany
| | - Linlin Liu
- State Key Laboratory of Luminescent Materials and Devices, South China University of Technology (SCUT), 510640 Guangzhou, China
| | - Zengqi Xie
- State Key Laboratory of Luminescent Materials and Devices, South China University of Technology (SCUT), 510640 Guangzhou, China
| | - Frank Würthner
- Institut für Organische Chemie, Universität Würzburg, 97074 Würzburg, Germany
- Center for Nanosystems Chemistry (CNC), Universität Würzburg, 97074 Würzburg, Germany
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6
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Koda K, Keller S, Kojima R, Kamiya M, Urano Y. Measuring the pH of Acidic Vesicles in Live Cells with an Optimized Fluorescence Lifetime Imaging Probe. Anal Chem 2022; 94:11264-11271. [PMID: 35913787 DOI: 10.1021/acs.analchem.2c01840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Acidification of intracellular vesicles, such as endosomes and lysosomes, is a key pathway for regulating the function of internal proteins. Most conventional methods of measuring pH are not satisfactory for quantifying the pH inside these vesicles. Here, we investigated the molecular requirements for a fluorescence probe to measure the intravesicular acidic pH in living cells by means of fluorescence lifetime imaging microscopy (FLIM). The developed probe, m-DiMeNAF488, exhibits a pH-dependent equilibrium between highly fluorescent and moderately fluorescent forms, which has distinct and detectable fluorescence lifetimes of 4.36 and 0.58 ns, respectively. The pKa(τ) value of m-DiMeNAF488 was determined to be 4.58, which would be favorable for evaluating the pH in the acidic vesicles. We were able to monitor the pH changes in phagosomes during phagocytosis by means of FLIM using m-DiMeNAF488. This probe is expected to be a useful tool for investigating acidic pH-regulated biological phenomena.
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Affiliation(s)
| | | | - Ryosuke Kojima
- PRESTO, Japan Science and Technology Agency, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Mako Kamiya
- Department of Life Science and Technology, Tokyo Institute of Technology, 4259, Nagatsuta-cho, Midori-ku, Yokohama 226-8501, Japan
| | - Yasuteru Urano
- AMED-CREST, Japan Agency for Medical Research and Development, 1-7-1 Otemachi, Chiyoda-ku, Tokyo 100-0004, Japan
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7
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Zhao Y, Jiang Y, Wang Q, Sun Y, Huang K, Yao Z. Rapid and sensitive detection of dextran sulfate sodium based on supramolecular self-assembly of a perylene diimide derivative in aqueous solution. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 270:120760. [PMID: 34973613 DOI: 10.1016/j.saa.2021.120760] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 12/03/2021] [Accepted: 12/11/2021] [Indexed: 06/14/2023]
Abstract
Dextran sulfate sodium (DSS) is a heparin polysaccharide, whose overuse would cause many adverse effects, such as stiff and painful joints and loss of hair. It is crucial to search after a rapid and accurate approach for the determination of DSS in the clinical treatment and diagnosis. Regrettably, there are few literatures about analytical methods for detecting DSS at present. In this research, a sensitive and selective method for detecting DSS based on the hydrosoluble perylene diimide (PDI) derivative was established in pure aqueous solution. The sensing mechanism and performance of PDI-PdEC were systematically investigated by ultraviolet and fluorescence spectroscopy. Non-covalent interactions between DSS and PDI-PdEC, like π-π stacking, electrostatic and hydrophobic interaction, promote the aggregation of PDI-PdEC and form supramolecular aggregates, which realize the sensitive and rapid detection of DSS in aqueous system. The detection limit for DSS is as low as 5.51 ng/mL and the linear range is 20-500 ng/mL. Furthermore, this probe was triumphantly applied in the detecting of DSS in serum. To the best of our knowledge, this is the first fluorescent probe for detecting DSS in aqueous media. We consider that our study will not only broaden the range of applications of perylene diimide fluorescent sensors, but also provide valuable reference for the design of new sensors for the rapid determination method of DSS.
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Affiliation(s)
- Yiwen Zhao
- Center of Food Colloids and Delivery of Functionality, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Yanping Jiang
- Center of Food Colloids and Delivery of Functionality, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Qianwei Wang
- Center of Food Colloids and Delivery of Functionality, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Yana Sun
- Beijing Products Quality Supervision and Inspection Institute, Beijing 101300, China.
| | - Kunlun Huang
- Center of Food Colloids and Delivery of Functionality, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Zhiyi Yao
- Center of Food Colloids and Delivery of Functionality, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China.
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8
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Herrera-Ochoa D, Pacheco-Liñán PJ, Bravo I, Garzón-Ruiz A. A Novel Quantum Dot-Based pH Probe for Long-Term Fluorescence Lifetime Imaging Microscopy Experiments in Living Cells. ACS APPLIED MATERIALS & INTERFACES 2022; 14:2578-2586. [PMID: 35001616 PMCID: PMC8778634 DOI: 10.1021/acsami.1c19926] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Accepted: 12/28/2021] [Indexed: 06/14/2023]
Abstract
The use of two nanoparticles for quantitative pH measurements in live cells by means of fluorescence lifetime imaging microscopy (FLIM) is investigated here. These nanoparticles are based on CdSe/ZnS quantum dots (QDs), functionalized with N-acetylcysteine (CdSe/ZnS-A) and with a small peptide containing D-penicillamine and histidine (CdSe/ZnS-PH). CdSe/ZnS-A has tendency to aggregate and nonlinear pH sensitivity in a complex medium containing salts and macromolecules. On the contrary, CdSe/ZnS-PH shows chemical stability, low toxicity, efficient uptake in C3H10T1/2 cells, and good performance as an FLIM probe. CdSe/ZnS-PH also has key advantages over a recently reported probe based on a CdSe/ZnS QD functionalized with D-penicillamine (longer lifetimes and higher pH-sensitivity). A pH(±2σ) of 6.97 ± 0.14 was determined for C3H10T1/2 cells by FLIM employing this nanoprobe. In addition, the fluorescence lifetime signal remains nearly constant for C3H10T1/2 cells treated with CdSe/ZnS-PH for 24 h. These results show the promising applications of this nanoprobe to monitor the intracellular pH and cell state employing the FLIM technique.
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Affiliation(s)
- Diego Herrera-Ochoa
- Departamento
de Química Física, Facultad de Farmacia, Universidad de Castilla-La Mancha, Av. Dr. José María
Sánchez Ibáñez, s/n, 02071 Albacete, Spain
| | - Pedro J. Pacheco-Liñán
- Departamento
de Química Física, Facultad de Farmacia, Universidad de Castilla-La Mancha, Av. Dr. José María
Sánchez Ibáñez, s/n, 02071 Albacete, Spain
| | - Iván Bravo
- Departamento
de Química Física, Facultad de Farmacia, Universidad de Castilla-La Mancha, Av. Dr. José María
Sánchez Ibáñez, s/n, 02071 Albacete, Spain
- Centro
Regional de Investigaciones Biomédicas (CRIB), Unidad Asociada de Biomedicina (UCLM-CSIC), C/Almansa, 14, 02008 Albacete, Spain
| | - Andrés Garzón-Ruiz
- Departamento
de Química Física, Facultad de Farmacia, Universidad de Castilla-La Mancha, Av. Dr. José María
Sánchez Ibáñez, s/n, 02071 Albacete, Spain
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9
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Li Y, Sapermsap N, Yu J, Tian J, Chen Y, Day-Uei Li D. Histogram clustering for rapid time-domain fluorescence lifetime image analysis. BIOMEDICAL OPTICS EXPRESS 2021; 12:4293-4307. [PMID: 34457415 PMCID: PMC8367240 DOI: 10.1364/boe.427532] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 05/30/2021] [Accepted: 06/08/2021] [Indexed: 05/03/2023]
Abstract
We propose a histogram clustering (HC) method to accelerate fluorescence lifetime imaging (FLIM) analysis in pixel-wise and global fitting modes. The proposed method's principle was demonstrated, and the combinations of HC with traditional FLIM analysis were explained. We assessed HC methods with both simulated and experimental datasets. The results reveal that HC not only increases analysis speed (up to 106 times) but also enhances lifetime estimation accuracy. Fast lifetime analysis strategies were suggested with execution times around or below 30 μs per histograms on MATLAB R2016a, 64-bit with the Intel Celeron CPU (2950M @ 2GHz).
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Affiliation(s)
- Yahui Li
- Key Laboratory of Ultra-fast Photoelectric Diagnostics Technology, Xi'an Institute of Optics and Precision Mechanics, Xi'an Shaanxi 710049, China
- Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan Shanxi 030006, China
| | - Natakorn Sapermsap
- Department of Physics, Scottish Universities Physics Alliance, University of Strathclyde, Glasgow, G4 0NG, United Kingdom
| | - Jun Yu
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow G4 0RE, United Kingdom
| | - Jinshou Tian
- Key Laboratory of Ultra-fast Photoelectric Diagnostics Technology, Xi'an Institute of Optics and Precision Mechanics, Xi'an Shaanxi 710049, China
- Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan Shanxi 030006, China
| | - Yu Chen
- Department of Physics, Scottish Universities Physics Alliance, University of Strathclyde, Glasgow, G4 0NG, United Kingdom
| | - David Day-Uei Li
- Department of Biomedical Engineering, University of Strathclyde, Glasgow G1 0NW, United Kingdom
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10
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Chen Y, Liu W, Zhang B, Suo Z, Xing F, Feng L. A New Strategy Using a Fluorescent Probe Combined with Polydopamine for Detecting the Activity of Acetylcholinesterase. Aust J Chem 2021. [DOI: 10.1071/ch21062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
A water-soluble and sensitive fluorescent probe N,N′-bis[tris-(2-aminoethyl)amine]-3,4,9,10-perylenetetracarboxylic diimide (PTRIS) was synthesized and, in combination with polydopamine (PDA), utilised in the detection of acetylcholinesterase (AChE) activity. PDA is spontaneously polymerized from dopamine (DA) in aerobic and alkaline solutions. The excellent absorption of PDA results in the aggregation of PTRIS around PDA as well as π–π stacking between them, which consequently quenched the fluorescence of PTRIS due to aggregation induced quenching (AIQ) in 9min. The hydrolysis product of acetylthiocholine (ATCh) catalyzed by AChE, thiocholine (TCh), was proved to inhibit the polymerization of DA, therefore the free monomeric PTRIS retained its strong fluorescence intensity. The fluorescence was switched off and on depending on the activity of AChE. According to the change of fluorescence intensity at 550nm, the detection limit of AChE was quantified as 0.02mUmL−1. It was also proved that this probe possessed excellent selectivity for AChE. Tacrine and the organophosphate pesticide diazinon were further evaluated for inhibitor screening. The half-maximal inhibitory concentration value of tacrine and diazinon was calculated to be 1.4 and 1.6μM respectively, revealing potential applications for inhibition and pesticide detecting.
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11
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Luminescent probes for luminescence lifetime sensing and imaging in live cells: a narrative review. JOURNAL OF BIO-X RESEARCH 2020. [DOI: 10.1097/jbr.0000000000000081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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12
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Steinegger A, Wolfbeis OS, Borisov SM. Optical Sensing and Imaging of pH Values: Spectroscopies, Materials, and Applications. Chem Rev 2020; 120:12357-12489. [PMID: 33147405 PMCID: PMC7705895 DOI: 10.1021/acs.chemrev.0c00451] [Citation(s) in RCA: 181] [Impact Index Per Article: 45.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Indexed: 12/13/2022]
Abstract
This is the first comprehensive review on methods and materials for use in optical sensing of pH values and on applications of such sensors. The Review starts with an introduction that contains subsections on the definition of the pH value, a brief look back on optical methods for sensing of pH, on the effects of ionic strength on pH values and pKa values, on the selectivity, sensitivity, precision, dynamic ranges, and temperature dependence of such sensors. Commonly used optical sensing schemes are covered in a next main chapter, with subsections on methods based on absorptiometry, reflectometry, luminescence, refractive index, surface plasmon resonance, photonic crystals, turbidity, mechanical displacement, interferometry, and solvatochromism. This is followed by sections on absorptiometric and luminescent molecular probes for use pH in sensors. Further large sections cover polymeric hosts and supports, and methods for immobilization of indicator dyes. Further and more specific sections summarize the state of the art in materials with dual functionality (indicator and host), nanomaterials, sensors based on upconversion and 2-photon absorption, multiparameter sensors, imaging, and sensors for extreme pH values. A chapter on the many sensing formats has subsections on planar, fiber optic, evanescent wave, refractive index, surface plasmon resonance and holography based sensor designs, and on distributed sensing. Another section summarizes selected applications in areas, such as medicine, biology, oceanography, bioprocess monitoring, corrosion studies, on the use of pH sensors as transducers in biosensors and chemical sensors, and their integration into flow-injection analyzers, microfluidic devices, and lab-on-a-chip systems. An extra section is devoted to current challenges, with subsections on challenges of general nature and those of specific nature. A concluding section gives an outlook on potential future trends and perspectives.
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Affiliation(s)
- Andreas Steinegger
- Institute
of Analytical Chemistry and Food Chemistry, Graz University of Technology, Stremayrgasse 9, A-8010 Graz, Austria
| | - Otto S. Wolfbeis
- Institute
of Analytical Chemistry, Chemo- and Biosensors, University of Regensburg, D-93040 Regensburg, Germany
| | - Sergey M. Borisov
- Institute
of Analytical Chemistry and Food Chemistry, Graz University of Technology, Stremayrgasse 9, A-8010 Graz, Austria
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13
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Sensitive and reversible perylene derivative-based fluorescent probe for acetylcholinesterase activity monitoring and its inhibitor. Anal Biochem 2020; 607:113835. [PMID: 32739347 DOI: 10.1016/j.ab.2020.113835] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 05/31/2020] [Accepted: 06/16/2020] [Indexed: 01/09/2023]
Abstract
A reversible fluorescence probe for acetylcholinesterase activity detection was developed based on water soluble perylene derivative, N,N'-di(2-aspartic acid)-perylene-3,4,9,10-tetracarboxylic diimide (PASP). Based on the photo-induced electron transfer (PET), PASP fluorescence in aqueous is quenched after combining with copper ions (Cu2+). Acetylcholinesterase (AChE) is well known to catalyze the hydrolysis of acetylcholine (ATCh) to produce thiocholine, whose affinity is strong enough to capture Cu2+ by thiol (-SH) group from the complex PASP-Cu, resulting in the fluorescence signal of PASP recovers up to 90%. This optical switch is highly sensitive depended on the coordination and dissociation between PASP and Cu2+. We proposed its application for AChE activity detection, as well as its inhibitor screening. According to the change of fluorescence intensity, quantifying the detection limit of AChE was 1.78 mU·mL-1. Classical inhibitors, tacrine and organophosphate pesticide diazinon, were further evaluated for drug screening. The IC50 value of tacrine was calculated to be 0.43 μM, and the detection limit of diazinon was 0.22 μM. Both of these performances were much better than previous results, revealing our probe is sensitive and reversible for screening applications.
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14
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Pacheco-Liñán PJ, Bravo I, Nueda ML, Albaladejo J, Garzón-Ruiz A. Functionalized CdSe/ZnS Quantum Dots for Intracellular pH Measurements by Fluorescence Lifetime Imaging Microscopy. ACS Sens 2020; 5:2106-2117. [PMID: 32551511 DOI: 10.1021/acssensors.0c00719] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
pH is an important biomarker for many human diseases and great efforts are being made to develop new pH probes for bioimaging and biomedical applications. Here, the use of three different CdSe/ZnS QDs, functionalized with d-penicillamine and small peptides, as pH probes for fluorescence lifetime imaging microscopy (FLIM) is investigated. The fluorescence pH sensitivity of the nanoparticles is analyzed in different experimental media: aqueous solution, synthetic intracellular medium, and mesenchymal C3H10T1/2 and tumoral SK-MEL-2 cell lines. Different experiments along with theoretical calculations are conducted to unravel the mechanisms causing pH sensitivity of the nanoparticles and the effect of the length and composition of the peripheral branches on their photophysical properties. Absolute intracellular pH values measured in live cells with FLIM using a fluorescent probe based on a QD are reported here for the first time (intracellular pH values of 7.0 and 7.1 for C3H10T1/2 and SK-MEL-2 cells, respectively). These fluorescent nanoprobes can also be used to distinguish between different types of cells in cocultures on the basis of their different fluorescence lifetimes in dissimilar intracellular environments.
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Affiliation(s)
- Pedro J. Pacheco-Liñán
- Departamento de Química Física, Facultad de Farmacia, Universidad de Castilla-La Mancha, Av. Dr. José María Sánchez Ibáñez, s/n, 02071 Albacete, Spain
| | - Iván Bravo
- Departamento de Química Física, Facultad de Farmacia, Universidad de Castilla-La Mancha, Av. Dr. José María Sánchez Ibáñez, s/n, 02071 Albacete, Spain
- Centro Regional de Investigaciones Biomédicas (CRIB), Unidad Asociada de Biomedicina (UCLM-CSIC), C/ Almansa, 14, 02008 Albacete, Spain
| | - María L. Nueda
- Departamento de Química Inorgánica, Orgánica y Bioquímica, Facultad de Farmacia, Universidad de Castilla-La Mancha, Av. Dr. José María Sánchez Ibáñez, s/n, 02071 Albacete, Spain
- Centro Regional de Investigaciones Biomédicas (CRIB), Unidad Asociada de Biomedicina (UCLM-CSIC), C/ Almansa, 14, 02008 Albacete, Spain
| | - José Albaladejo
- Departamento de Química Física, Facultad de Ciencias y Tecnologías Químicas, Universidad de Castilla-La Mancha, Avenida Camilo José Cela, 10, 13071 Ciudad Real, Spain
| | - Andrés Garzón-Ruiz
- Departamento de Química Física, Facultad de Farmacia, Universidad de Castilla-La Mancha, Av. Dr. José María Sánchez Ibáñez, s/n, 02071 Albacete, Spain
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15
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Chen S, Xue Z, Gao N, Yang X, Zang L. Perylene Diimide-Based Fluorescent and Colorimetric Sensors for Environmental Detection. SENSORS (BASEL, SWITZERLAND) 2020; 20:E917. [PMID: 32050439 PMCID: PMC7039297 DOI: 10.3390/s20030917] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2020] [Revised: 01/23/2020] [Accepted: 02/07/2020] [Indexed: 12/15/2022]
Abstract
Perylene tetracarboxylic diimide (PDI) and its derivatives exhibit excellent thermal, chemical and optical stability, strong electron affinity, strong visible-light absorption and unique fluorescence on/off features. The combination of these features makes PDIs ideal molecular frameworks for development in a broad range of sensors for detecting environmental pollutants such as heavy metal ions (e.g., Cu2+, Cd2+, Hg2+, Pd2+, etc.), inorganic anions (e.g., F-, ClO4-, PO4-, etc.), as well as poisonous organic compounds such as nitriles, amines, nitroaromatics, benzene homologues, etc. In this review, we provide a comprehensive overview of the recent advance in research and development of PDI-based fluorescent sensors, as well as related colorimetric and multi-mode sensor systems, for environmental detection in aqueous, organic or mixed solutions. The molecular design of PDIs and structural optimization of the sensor system (regarding both sensitivity and selectivity) in response to varying analytes are discussed in detail. At the end, a perspective summary is provided covering both the key challenges and potential solutions for the future development of PDI-based optical sensors.
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Affiliation(s)
- Shuai Chen
- Flexible Electronics Innovation Institute and School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang 330013, Jiangxi, China; (S.C.); (Z.X.); (N.G.)
- Nano Institute of Utah, University of Utah, Salt Lake City, UT 84112, USA;
- Department of Materials Science and Engineering, University of Utah, Salt Lake City, UT 84112, USA
| | - Zexu Xue
- Flexible Electronics Innovation Institute and School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang 330013, Jiangxi, China; (S.C.); (Z.X.); (N.G.)
| | - Nan Gao
- Flexible Electronics Innovation Institute and School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang 330013, Jiangxi, China; (S.C.); (Z.X.); (N.G.)
| | - Xiaomei Yang
- Nano Institute of Utah, University of Utah, Salt Lake City, UT 84112, USA;
| | - Ling Zang
- Nano Institute of Utah, University of Utah, Salt Lake City, UT 84112, USA;
- Department of Materials Science and Engineering, University of Utah, Salt Lake City, UT 84112, USA
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16
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Okkelman IA, Puschhof J, Papkovsky DB, Dmitriev RI. Visualization of Stem Cell Niche by Fluorescence Lifetime Imaging Microscopy. Methods Mol Biol 2020; 2171:65-97. [PMID: 32705636 DOI: 10.1007/978-1-0716-0747-3_5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Fluorescence lifetime imaging microscopy (FLIM), enabling live quantitative multiparametric analyses, is an emerging bioimaging approach in tissue engineering and regenerative medicine. When combined with stem cell-derived intestinal organoid models, FLIM allows for tracing stem cells and monitoring of their proliferation, metabolic fluxes, and oxygenation. It is compatible with the use of live Matrigel-grown intestinal organoids produced from primary adult stem cells, crypts, and transgenic Lgr5-GFP mice. In this chapter we summarize available experimental protocols, imaging platforms (one- and two-photon excited FLIM, phosphorescence lifetime imaging microscopy (PLIM)) and provide the anticipated data for FLIM imaging of the live intestinal organoids, focusing on labeling of cell proliferation, its colocalization with the stem cell niche, measured local oxygenation, autofluorescence, and some other parameters. The protocol is illustrated with examples of multiparameter imaging, employing spectral and "time domain"-based separation of dyes, probes, and assays.
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Affiliation(s)
- Irina A Okkelman
- School of Biochemistry and Cell Biology, University College Cork, Cork, Ireland
| | - Jens Puschhof
- Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences (KNAW), Utrecht, The Netherlands.,Oncode Institute, Utrecht, The Netherlands
| | - Dmitri B Papkovsky
- School of Biochemistry and Cell Biology, University College Cork, Cork, Ireland
| | - Ruslan I Dmitriev
- School of Biochemistry and Cell Biology, University College Cork, Cork, Ireland.
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17
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Dubey RK, Eustace SJ, van Mullem JS, Sudhölter EJR, Grozema FC, Jager WF. Perylene Bisimide Dyes with up to Five Independently Introduced Substituents: Controlling the Functionalization Pattern and Photophysical Properties Using Regiospecific Bay Substitution. J Org Chem 2019; 84:9532-9547. [PMID: 31298031 PMCID: PMC6683254 DOI: 10.1021/acs.joc.9b01131] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Indexed: 12/19/2022]
Abstract
We report herein a versatile and user-friendly synthetic methodology based on sequential functionalization that enables the synthesis of previously unknown perylene bisimide (PBI) dyes with up to five different substituents attached to the perylene core (e.g., compound 15). The key to the success of our strategy is a highly efficient regiospecific 7-mono- and 7,12-di-phenoxy bay substitution at the "imide-activated" 7- and 12-bay positions of 1,6,7,12-tetrachloroperylene monoimide diester 1. The facile subsequent conversion of the diester groups into an imide group resulted in novel PBIs (e.g., compound 14) with two phenoxy substituents specifically at the 7- and 12-bay positions. This conversion led to the activation of C-1 and C-6 bay positions, and thereafter, the remaining two chlorine atoms were substituted to obtain tetraphenoxy-PBI (compound 15) that has two different imide and three different bay substituents. The methodology provides excellent control over the functionalization pattern, which enables the synthesis of various regioisomeric pairs bearing the same bay substituents. Another important feature of this strategy is the high sensitivity of HOMO-LUMO energies and photoinduced charge transfer toward sequential functionalization. As a result, systematic fluorescence on-off switching has been demonstrated upon subsequent substitution with the electron-donating 4-methoxyphenoxy substituent.
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Affiliation(s)
- Rajeev K. Dubey
- Department
of Chemical Engineering and Department of Biotechnology, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
| | - Stephen J. Eustace
- Department
of Chemical Engineering and Department of Biotechnology, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
| | - Jesse S. van Mullem
- Department
of Chemical Engineering and Department of Biotechnology, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
| | - Ernst J. R. Sudhölter
- Department
of Chemical Engineering and Department of Biotechnology, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
| | - Ferdinand C. Grozema
- Department
of Chemical Engineering and Department of Biotechnology, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
| | - Wolter F. Jager
- Department
of Chemical Engineering and Department of Biotechnology, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
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18
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Ye F, Liang XM, Wu N, Li P, Chai Q, Fu Y. A new perylene-based fluorescent pH chemosensor for strongly acidic condition. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 216:359-364. [PMID: 30921658 DOI: 10.1016/j.saa.2019.03.049] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 02/26/2019] [Accepted: 03/17/2019] [Indexed: 06/09/2023]
Abstract
A highly selective and sensitive pH chemosensor N,N-bis[(2-thiophene)-ethyl]-3,4,9,10-perylene tetracarboxylic diimide (TEPTD) was designed and synthesized through Schiff-base condensation reaction. It exhibited large Stokes shifts, good water solubility, excellent selectivity and outstanding photo-stability. The pKa of the probe was 3.0, which indicated that it could be used in highly acid conditions. With the addition of H+, the fluorescence intensity increased gradually. The sensing mechanisms involved photo-induced electron transfer, protonation and deprotonation, which were confirmed by 1H NMR titration experiment with trifluoroacetic acid. The probe can be used as a convenient probe to distinguish acidic from neutral or alkaline solutions by "naked-eye".
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Affiliation(s)
- Fei Ye
- Department of Applied Chemistry, College of Science, Northeast Agricultural University, Harbin 150030, PR China
| | - Xiao-Min Liang
- Department of Applied Chemistry, College of Science, Northeast Agricultural University, Harbin 150030, PR China
| | - Nan Wu
- Department of Applied Chemistry, College of Science, Northeast Agricultural University, Harbin 150030, PR China
| | - Ping Li
- Department of Applied Chemistry, College of Science, Northeast Agricultural University, Harbin 150030, PR China
| | - Qiong Chai
- Department of Applied Chemistry, College of Science, Northeast Agricultural University, Harbin 150030, PR China
| | - Ying Fu
- Department of Applied Chemistry, College of Science, Northeast Agricultural University, Harbin 150030, PR China.
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19
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Shamsipur M, Barati A, Nematifar Z. Fluorescent pH nanosensors: Design strategies and applications. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS 2019. [DOI: 10.1016/j.jphotochemrev.2019.03.001] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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20
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Dalfen I, Dmitriev RI, Holst G, Klimant I, Borisov SM. Background-Free Fluorescence-Decay-Time Sensing and Imaging of pH with Highly Photostable Diazaoxotriangulenium Dyes. Anal Chem 2018; 91:808-816. [PMID: 30518209 DOI: 10.1021/acs.analchem.8b02534] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Novel fluorescent diazaoxatriangulenium (DAOTA) pH indicators for lifetime-based self-referenced pH sensing are reported. The DAOTA dyes were decorated with phenolic-receptor groups inducing fluorescence quenching via a photoinduced-electron-transfer mechanism. Electron-withdrawing chlorine substituents ensure response in the most relevant pH range (apparent p Ka' values of ∼5 and 7.5 for the p, p-dichlorophenol- and p-chlorophenol-substituted dyes, respectively). The dyes feature long fluorescence lifetimes (17-20 ns), high quantum yields (∼60%), and high photostabilities. Planar optodes are prepared upon immobilization of the dyes into polyurethane hydrogel D4. Apart from the response in the fluorescence intensity, the optodes show pH-dependent lifetime behavior, which makes them suitable for studying 2D pH distributions with the help of fluorescence-lifetime-imaging techniques. The lifetime response is particularly pronounced for the sensors with high dye concentrations (0.5-1 wt % with respect to the polymer) and is attributed to the efficient homo-FRET mechanism.
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Affiliation(s)
- Irene Dalfen
- Institute of Analytical Chemistry and Food Chemistry , Graz University of Technology , Stremayrgasse 9 , 8010 Graz , Austria
| | - Ruslan I Dmitriev
- School of Biochemistry and Cell Biology , University College Cork , T12 K8AF Cork , Ireland.,Institute for Regenerative Medicine , I.M. Sechenov First Moscow State University , 119146 Moscow , Russian Federation
| | | | - Ingo Klimant
- Institute of Analytical Chemistry and Food Chemistry , Graz University of Technology , Stremayrgasse 9 , 8010 Graz , Austria
| | - Sergey M Borisov
- Institute of Analytical Chemistry and Food Chemistry , Graz University of Technology , Stremayrgasse 9 , 8010 Graz , Austria
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21
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O'Donnell N, Okkelman IA, Timashev P, Gromovykh TI, Papkovsky DB, Dmitriev RI. Cellulose-based scaffolds for fluorescence lifetime imaging-assisted tissue engineering. Acta Biomater 2018; 80:85-96. [PMID: 30261339 DOI: 10.1016/j.actbio.2018.09.034] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 09/11/2018] [Accepted: 09/23/2018] [Indexed: 12/12/2022]
Abstract
Quantitative measurement of pH and metabolite gradients by microscopy is one of the challenges in the production of scaffold-grown organoids and multicellular aggregates. Herein, we used the cellulose-binding domain (CBD) of the Cellulomonas fimi CenA protein for designing biosensor scaffolds that allow measurement of pH and Ca2+ gradients by fluorescence intensity and lifetime imaging (FLIM) detection modes. By fusing CBD with pH-sensitive enhanced cyan fluorescent protein (CBD-ECFP), we achieved efficient labeling of cellulose-based scaffolds based on nanofibrillar, bacterial cellulose, and decellularized plant materials. CBD-ECFP bound to the cellulose matrices demonstrated pH sensitivity comparable to untagged ECFP (1.9-2.3 ns for pH 6-8), thus making it compatible with FLIM-based analysis of extracellular pH. By using 3D culture of human colon cancer cells (HCT116) and adult stem cell-derived mouse intestinal organoids, we evaluated the utility of the produced biosensor scaffold. CBD-ECFP was sensitive to increases in extracellular acidification: the results showed a decline in 0.2-0.4 pH units in response to membrane depolarization by the protonophore FCCP. With the intestinal organoid model, we demonstrated multiparametric imaging by combining extracellular acidification (FLIM) with phosphorescent probe-based monitoring of cell oxygenation. The described labeling strategy allows for the design of extracellular pH-sensitive scaffolds for multiparametric FLIM assays and their use in engineered live cancer and stem cell-derived tissues. Collectively, this research can help in achieving the controlled biofabrication of 3D tissue models with known metabolic characteristics. STATEMENT OF SIGNIFICANCE: We designed biosensors consisting of a cellulose-binding domain (CBD) and pH- and Ca2+-sensitive fluorescent proteins. CBD-tagged biosensors efficiently label various types of cellulose matrices including nanofibrillar cellulose and decellularized plant materials. Hybrid biosensing cellulose scaffolds designed in this study were successfully tested by multiparameter FLIM microscopy in 3D cultures of cancer cells and mouse intestinal organoids.
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Affiliation(s)
- Neil O'Donnell
- School of Biochemistry and Cell Biology, University College Cork, Cork, Ireland
| | - Irina A Okkelman
- School of Biochemistry and Cell Biology, University College Cork, Cork, Ireland
| | - Peter Timashev
- Institute for Regenerative Medicine, I.M. Sechenov First Moscow State University, Moscow, Russian Federation; Institute of Photonic Technologies, Research Center 'Crystallography and Photonics', Russian Academy of Sciences, Moscow, Russian Federation
| | - Tatyana I Gromovykh
- Department of Biotechnology, I.M. Sechenov First Moscow State University, Moscow, Russian Federation
| | - Dmitri B Papkovsky
- School of Biochemistry and Cell Biology, University College Cork, Cork, Ireland
| | - Ruslan I Dmitriev
- School of Biochemistry and Cell Biology, University College Cork, Cork, Ireland; Institute for Regenerative Medicine, I.M. Sechenov First Moscow State University, Moscow, Russian Federation.
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22
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Pfeifer D, Klimant I, Borisov SM. Ultrabright Red-Emitting Photostable Perylene Bisimide Dyes: New Indicators for Ratiometric Sensing of High pH or Carbon Dioxide. Chemistry 2018; 24:10711-10720. [PMID: 29738607 PMCID: PMC6099519 DOI: 10.1002/chem.201800867] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Indexed: 01/28/2023]
Abstract
New pH-sensitive perylene bisimide indicator dyes were synthesized and used for fabrication of optical sensors. The highly photostable dyes show absorption/emission bands in the red/near-infrared (NIR) region of the electromagnetic spectrum, high molar absorption coefficients (up to 100 000 m-1 cm-1 ), and fluorescence quantum yields close to unity. The absorption and emission spectra show strong bathochromic shifts upon deprotonation of the imidazole nitrogen atom, which makes the dyes promising as ratiometric fluorescent indicators. Physical entrapment of the indicators into a polyurethane hydrogel enables pH determination at alkaline pH values. It is also shown that a plastic carbon dioxide solid-state sensor can be manufactured by immobilization of the pH indicator in a hydrophilic polymer, along with a quaternary ammonium base. The influences of the plasticizer, different lipophilic bases, and humidity on the sensitivity of the sensor material are systematically investigated. The disubstituted perylene, particularly, features two deprotonation equilibria, enabling sensing over a very broad pCO2 range of 0.5 to 1000 hPa.
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Affiliation(s)
- David Pfeifer
- Institute of Analytical Chemistry and Food ChemistryGraz University of Technology8010GrazAustria
| | - Ingo Klimant
- Institute of Analytical Chemistry and Food ChemistryGraz University of Technology8010GrazAustria
| | - Sergey M. Borisov
- Institute of Analytical Chemistry and Food ChemistryGraz University of Technology8010GrazAustria
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23
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Huth K, Glaeske M, Achazi K, Gordeev G, Kumar S, Arenal R, Sharma SK, Adeli M, Setaro A, Reich S, Haag R. Fluorescent Polymer-Single-Walled Carbon Nanotube Complexes with Charged and Noncharged Dendronized Perylene Bisimides for Bioimaging Studies. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1800796. [PMID: 29870583 DOI: 10.1002/smll.201800796] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 04/20/2018] [Indexed: 05/28/2023]
Abstract
Fluorescent nanomaterials are expected to revolutionize medical diagnostic, imaging, and therapeutic tools due to their superior optical and structural properties. Their inefficient water solubility, cell permeability, biodistribution, and high toxicity, however, limit the full potential of their application. To overcome these obstacles, a water-soluble, fluorescent, cytocompatible polymer-single-walled carbon nanotube (SWNT) complex is introduced for bioimaging applications. The supramolecular complex consists of an alkylated polymer conjugated with neutral hydroxylated or charged sulfated dendronized perylene bisimides (PBIs) and SWNTs as a general immobilization platform. The polymer backbone solubilizes the SWNTs, decorates them with fluorescent PBIs, and strongly improves their cytocompatibility by wrapping around the SWNT scaffold. In photophysical measurements and biological in vitro studies, sulfated complexes exhibit superior optical properties, cellular uptake, and intracellular staining over their hydroxylated analogs. A toxicity assay confirms the highly improved cytocompatibility of the polymer-wrapped SWNTs toward surfactant-solubilized SWNTs. In microscopy studies the complexes allow for the direct imaging of the SWNTs' cellular uptake via the PBI and SWNT emission using the 1st and 2nd optical window for bioimaging. These findings render the polymer-SWNT complexes with nanometer size, dual fluorescence, multiple charges, and high cytocompatibility as valuable systems for a broad range of fluorescence bioimaging studies.
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Affiliation(s)
- Katharina Huth
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195, Berlin, Germany
| | - Mareen Glaeske
- Department of Physics, Freie Universität Berlin, 14195, Berlin, Germany
| | - Katharina Achazi
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195, Berlin, Germany
| | - Georgy Gordeev
- Department of Physics, Freie Universität Berlin, 14195, Berlin, Germany
| | - Shiv Kumar
- Department of Chemistry, University of Delhi, Delhi, 110007, India
| | - Raúl Arenal
- Institute of Nanoscience of Aragon (INA), Advanced Microscopy Laboratory (LMA), University of Zaragoza, 50018, Zaragoza, Spain
- Foundation ARAID, 50018, Zaragoza, Spain
| | - Sunil K Sharma
- Department of Chemistry, University of Delhi, Delhi, 110007, India
| | - Mohsen Adeli
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195, Berlin, Germany
- Department of Chemistry, Faculty of Science, Lorestan University, Khorram Abad, 68151-44316, Iran
| | - Antonio Setaro
- Department of Physics, Freie Universität Berlin, 14195, Berlin, Germany
| | - Stephanie Reich
- Department of Physics, Freie Universität Berlin, 14195, Berlin, Germany
| | - Rainer Haag
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195, Berlin, Germany
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24
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Schill J, van Dun S, Pouderoijen MJ, Janssen HM, Milroy L, Schenning APHJ, Brunsveld L. Synthesis and Self-Assembly of Bay-Substituted Perylene Diimide Gemini-Type Surfactants as Off-On Fluorescent Probes for Lipid Bilayers. Chemistry 2018; 24:7734-7741. [PMID: 29569314 PMCID: PMC6001554 DOI: 10.1002/chem.201801022] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 03/20/2018] [Indexed: 11/07/2022]
Abstract
Interest in bay-substituted perylene-3,4:9,10-tetracarboxylic diimides (PDIs) for solution-based applications is growing due to their improved solubility and altered optical and electronic properties compared to unsubstituted PDIs. Synthetic routes to 1,12-bay-substituted PDIs have been very demanding due to issues with steric hindrance and poor regioselectivity. Here we report a simple one-step regioselective and high yielding synthesis of a 1,12-dihydroxylated PDI derivative that can subsequently be alkylated in a straightforward fashion to produce nonplanar 1,12-dialkoxy PDIs. These PDIs show a large Stokes shift, which is specifically useful for bioimaging applications. A particular cationic PDI gemini-type surfactant has been developed that forms nonfluorescent self-assembled particles in water ("off state"), which exerts a high fluorescence upon incorporation into lipophilic bilayers ("on state"). Therefore, this probe is appealing as a highly sensitive fluorescent labelling marker with a low background signal for imaging artificial and cellular membranes.
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Affiliation(s)
- Jurgen Schill
- Laboratory of Chemical Biology, Department of Biomedical Engineering and Institute for Complex Molecular SystemsEindhoven University of, TechnologyP.O. Box 5135600MBEindhovenThe Netherlands
| | - Sam van Dun
- Laboratory of Chemical Biology, Department of Biomedical Engineering and Institute for Complex Molecular SystemsEindhoven University of, TechnologyP.O. Box 5135600MBEindhovenThe Netherlands
| | | | | | - Lech‐Gustav Milroy
- Laboratory of Chemical Biology, Department of Biomedical Engineering and Institute for Complex Molecular SystemsEindhoven University of, TechnologyP.O. Box 5135600MBEindhovenThe Netherlands
| | - Albertus P. H. J. Schenning
- Stimuli-responsive Functional Materials and Devices and Institute for, Complex Molecular SystemsEindhoven University of TechnologyP.O. Box 5135600MBEindhovenThe Netherlands
| | - Luc Brunsveld
- Laboratory of Chemical Biology, Department of Biomedical Engineering and Institute for Complex Molecular SystemsEindhoven University of, TechnologyP.O. Box 5135600MBEindhovenThe Netherlands
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25
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Mishra R, Mushtaq Z, Regar R, Mallik B, Kumar V, Sankar J. Selective Imaging of Lipids in Adipocytes
by Using an Imidazolyl Derivative of Perylene Bisimide. Chembiochem 2018; 19:1386-1390. [DOI: 10.1002/cbic.201800134] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Indexed: 01/17/2023]
Affiliation(s)
- Ruchika Mishra
- Department of Chemistry; Indian Institute of Science Education and Research Bhopal; Bhopal Bypass Road Bhopal 462066 India
| | - Zeeshan Mushtaq
- Department of Biological Sciences; Indian Institute of Science Education and Research Bhopal; Bhopal Bypass Road Bhopal 462066 India
| | - Ramprasad Regar
- Department of Chemistry; Indian Institute of Science Education and Research Bhopal; Bhopal Bypass Road Bhopal 462066 India
| | - Bhagaban Mallik
- Department of Biological Sciences; Indian Institute of Science Education and Research Bhopal; Bhopal Bypass Road Bhopal 462066 India
| | - Vimlesh Kumar
- Department of Biological Sciences; Indian Institute of Science Education and Research Bhopal; Bhopal Bypass Road Bhopal 462066 India
| | - Jeyaraman Sankar
- Department of Chemistry; Indian Institute of Science Education and Research Bhopal; Bhopal Bypass Road Bhopal 462066 India
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26
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Mueller BJ, Zhdanov AV, Borisov SM, Foley T, Okkelman IA, Tsytsarev V, Tang Q, Erzurumlu RS, Chen Y, Zhang H, Toncelli C, Klimant I, Papkovsky DB, Dmitriev RI. Nanoparticle-based fluoroionophore for analysis of potassium ion dynamics in 3D tissue models and in vivo. ADVANCED FUNCTIONAL MATERIALS 2018; 28:1704598. [PMID: 30271316 PMCID: PMC6157274 DOI: 10.1002/adfm.201704598] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
The imaging of real-time fluxes of K+ ions in live cell with high dynamic range (5-150 mM) is of paramount importance for neuroscience and physiology of the gastrointestinal tract, kidney and other tissues. In particular, the research on high-performance deep-red fluorescent nanoparticle-based biosensors is highly anticipated. We found that BODIPY-based FI3 K+-sensitive fluoroionophore encapsulated in cationic polymer RL100 nanoparticles displays unusually strong efficiency in staining of broad spectrum of cell models, such as primary neurons and intestinal organoids. Using comparison of brightness, photostability and fluorescence lifetime imaging microscopy (FLIM) we confirmed that FI3 nanoparticles display distinctively superior intracellular staining compared to the free dye. We evaluated FI3 nanoparticles in real-time live cell imaging and found that it is highly useful for monitoring intra- and extracellular K+ dynamics in cultured neurons. Proof-of-concept in vivo brain imaging confirmed applicability of the biosensor for visualization of epileptic seizures. Collectively, this data makes fluoroionophore FI3 a versatile cross-platform fluorescent biosensor, broadly compatible with diverse experimental models and that crown ether-based polymer nanoparticles can provide a new venue for design of efficient fluorescent probes.
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Affiliation(s)
- Bernhard J. Mueller
- Institute of Analytical Chemistry and Food Chemistry, Graz University of Technology, Stremayrgasse 9, 8010 Graz, Austria
| | - Alexander V. Zhdanov
- ABCRF, School of Biochemistry and Cell biology, University College Cork, Cork, Ireland
| | - Sergey M. Borisov
- Institute of Analytical Chemistry and Food Chemistry, Graz University of Technology, Stremayrgasse 9, 8010 Graz, Austria
| | - Tara Foley
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland
| | - Irina A. Okkelman
- ABCRF, School of Biochemistry and Cell biology, University College Cork, Cork, Ireland
| | - Vassiliy Tsytsarev
- Department of Anatomy and Neurobiology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Qinggong Tang
- Fischell Department of Bioengineering, University of Maryland, College Park, 20740 MD, USA
| | - Reha S. Erzurumlu
- Department of Anatomy and Neurobiology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Yu Chen
- Fischell Department of Bioengineering, University of Maryland, College Park, 20740 MD, USA
| | - Haijiang Zhang
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Biomimetic Membranes and Textiles, Lerchenfeldstrasse 5, CH-9014 St. Gallen, Switzerland
| | - Claudio Toncelli
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Biomimetic Membranes and Textiles, Lerchenfeldstrasse 5, CH-9014 St. Gallen, Switzerland
| | - Ingo Klimant
- Institute of Analytical Chemistry and Food Chemistry, Graz University of Technology, Stremayrgasse 9, 8010 Graz, Austria
| | - Dmitri B. Papkovsky
- ABCRF, School of Biochemistry and Cell biology, University College Cork, Cork, Ireland
| | - Ruslan I. Dmitriev
- ABCRF, School of Biochemistry and Cell biology, University College Cork, Cork, Ireland
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27
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Zhang F, Zhao Y, Chi Y, Ma Y, Jiang T, Wei X, Zhao Q, Shi Z, Shi J. Novel fluorescent probes for the fluoride anion based on hydroxy-substituted perylene tetra-(alkoxycarbonyl) derivatives. RSC Adv 2018; 8:14084-14091. [PMID: 35539336 PMCID: PMC9079896 DOI: 10.1039/c8ra00299a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Accepted: 03/24/2018] [Indexed: 11/21/2022] Open
Abstract
The fluoride anion (F−) sensing abilities of 1-hydroxyl-3,4,9,10-tetra (n-butoxyloxycarbonyl) perylene (probe 1) and 1-hydroxyl-mono-five-membered S-heterocyclic annulated tetra (n-butoxyloxycarbonyl) perylene (probe 2) were studied through visual detection experiments, UV-Vis, fluorescence, and 1H NMR titrations. The probes were sensitive and selective for distinguishing F− from other anions (Cl−, Br−, I−, SO4−, PF6−, H2PO4−, BF4−, ClO4−, OH−, CH3COO−, and HPO42−) through a change of UV-Vis and fluorescence spectra. The absorption and fluorescence emission properties of the probes arise from the intermolecular proton transfer (IPT) process between a hydrogen atom on the phenolic O position of probe and the F− anion. The sensing mechanism was supported by theoretical investigation. Moreover, probe-based test strips can conveniently detect F− without any additional equipment, and they can be used as fluorescent probes for monitoring F− in living cells. The fluoride anion (F−) sensing abilities of two fluorescent probes based on hydroxy-substituted perylene tetra-(alkoxycarbonyl) derivatives were studied through visual detection experiment, UV-Vis, fluorescence, and 1H NMR titrations.![]()
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Affiliation(s)
- Fengxia Zhang
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education Shandong Provincial Key Laboratory of Clean Production of Fine Chemistry
| | - Yunlong Zhao
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education Shandong Provincial Key Laboratory of Clean Production of Fine Chemistry
| | - Yanhui Chi
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education Shandong Provincial Key Laboratory of Clean Production of Fine Chemistry
| | - Yongshan Ma
- School of Municipal and Environmental Engineering
- Shandong Jianzhu University
- Jinan 250101
- P. R. China
- Co-Innovation Center of Green Building
| | - Tianyi Jiang
- School of Municipal and Environmental Engineering
- Shandong Jianzhu University
- Jinan 250101
- P. R. China
| | - Xiaofeng Wei
- School of Municipal and Environmental Engineering
- Shandong Jianzhu University
- Jinan 250101
- P. R. China
| | - Qian Zhao
- School of Municipal and Environmental Engineering
- Shandong Jianzhu University
- Jinan 250101
- P. R. China
| | - Zhiqiang Shi
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education Shandong Provincial Key Laboratory of Clean Production of Fine Chemistry
| | - Jingmin Shi
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education Shandong Provincial Key Laboratory of Clean Production of Fine Chemistry
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28
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Okkelman IA, Foley T, Papkovsky DB, Dmitriev RI. Live cell imaging of mouse intestinal organoids reveals heterogeneity in their oxygenation. Biomaterials 2017; 146:86-96. [DOI: 10.1016/j.biomaterials.2017.08.043] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2017] [Accepted: 08/30/2017] [Indexed: 02/06/2023]
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29
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Three-Dimensional Tissue Models and Available Probes for Multi-Parametric Live Cell Microscopy: A Brief Overview. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 1035:49-67. [DOI: 10.1007/978-3-319-67358-5_4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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30
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Okkelman IA, Dmitriev RI, Foley T, Papkovsky DB. Use of Fluorescence Lifetime Imaging Microscopy (FLIM) as a Timer of Cell Cycle S Phase. PLoS One 2016; 11:e0167385. [PMID: 27973570 PMCID: PMC5156356 DOI: 10.1371/journal.pone.0167385] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2016] [Accepted: 11/14/2016] [Indexed: 12/14/2022] Open
Abstract
Incorporation of thymidine analogues in replicating DNA, coupled with antibody and fluorophore staining, allows analysis of cell proliferation, but is currently limited to monolayer cultures, fixed cells and end-point assays. We describe a simple microscopy imaging method for live real-time analysis of cell proliferation, S phase progression over several division cycles, effects of anti-proliferative drugs and other applications. It is based on the prominent (~ 1.7-fold) quenching of fluorescence lifetime of a common cell-permeable nuclear stain, Hoechst 33342 upon the incorporation of 5-bromo-2'-deoxyuridine (BrdU) in genomic DNA and detection by fluorescence lifetime imaging microscopy (FLIM). We show that quantitative and accurate FLIM technique allows high-content, multi-parametric dynamic analyses, far superior to the intensity-based imaging. We demonstrate its uses with monolayer cell cultures, complex 3D tissue models of tumor cell spheroids and intestinal organoids, and in physiological study with metformin treatment.
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Affiliation(s)
- Irina A. Okkelman
- School of Biochemistry and Cell Biology, ABCRF, University College Cork, College Road, Cork, Ireland
| | - Ruslan I. Dmitriev
- School of Biochemistry and Cell Biology, ABCRF, University College Cork, College Road, Cork, Ireland
| | - Tara Foley
- Department of Anatomy and Neuroscience, University College Cork, Western Road, Cork, Ireland
| | - Dmitri B. Papkovsky
- School of Biochemistry and Cell Biology, ABCRF, University College Cork, College Road, Cork, Ireland
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31
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Liu S, Xu A, Chen Z, Ma Y, Yang H, Shi Z, Zhao Q. Phosphorescent ion-paired iridium(III) complex for ratiometric and time-resolved luminescence imaging of intracellular biothiols. OPTICS EXPRESS 2016; 24:28247-28255. [PMID: 27958536 DOI: 10.1364/oe.24.028247] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
A novel phosphorescent probe based on ion-paired iridium(III) complex has been designed and synthesized by incorporating α,β-unsaturated ketone moiety in the cationic component. The phosphorescent intensity of cationic component is sensitive to bithiols, such as cysteine and homocysteine, based on the addition reaction of bithiols with α,β-unsaturated ketone moiety, while that of the anionic component remains unchanged. Thus, this ion-paired iridium(III) complex can be used for ratiometric luminescence sensing and imaging of intracellular biothiols with excellent sensing performance. Moreover, the long phosphorescence lifetime of the cationic component is also sensitive to bithiols. Hence, this ion-paired iridium(III) complex has been further used for time-resolved luminescence imaging of intracellular biothiols. As far as we know, this is the first report about molecular probe for both ratiometric and time-resolved luminescence imaging of intracellular biothiols.
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32
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Bay Functionalized Perylenediimide with Pyridine Positional Isomers: NIR Absorption and Selective Colorimetric/Fluorescent Sensing of Fe3+ and Al3+ Ions. J Fluoresc 2016; 27:491-500. [DOI: 10.1007/s10895-016-1976-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Accepted: 11/03/2016] [Indexed: 10/20/2022]
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33
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Jenkins J, Borisov SM, Papkovsky DB, Dmitriev RI. Sulforhodamine Nanothermometer for Multiparametric Fluorescence Lifetime Imaging Microscopy. Anal Chem 2016; 88:10566-10572. [PMID: 27696826 DOI: 10.1021/acs.analchem.6b02675] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Live cells function within narrow limits of physiological temperature (T) and O2 and metabolite concentrations. We have designed a cell-permeable T-sensitive fluorescence lifetime-based nanoprobe based on lipophilic sulforhodamine, which stains 2D and 3D cell models, shows cytoplasmic localization, and has a robust response to T (∼0.037 ns/K). Subsequently, we evaluated the probe and fluorescence lifetime imaging microscopy (FLIM) technique for combined imaging of T and O2 gradients in metabolically active cells. We found that in adherent 2D culture of HCT116 cells intracellular T and O2 are close to ambient values. However, in 3D spheroid structures having size >200 μm, T and O2 gradients become pronounced. These microgradients can be enhanced by treatment with mitochondrial uncouplers or dissipated by drug-induced disaggregation of the spheroids. Thus, we demonstrate the existence of local microgradients of T in 3D cell models and utility of combined imaging of O2 and T.
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Affiliation(s)
- James Jenkins
- School of Biochemistry and Cell Biology, University College Cork , Cork, Ireland
| | - Sergey M Borisov
- Institute of Analytical Chemistry and Food Chemistry, Graz University of Technology , 8010 Graz, Austria
| | - Dmitri B Papkovsky
- School of Biochemistry and Cell Biology, University College Cork , Cork, Ireland
| | - Ruslan I Dmitriev
- School of Biochemistry and Cell Biology, University College Cork , Cork, Ireland
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34
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Highly enantioselective recognition of alaninol via the chiral BINAM-based fluorescence polymer sensor. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.08.061] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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35
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The Ca2+/Mn2+-transporting SPCA2 pump is regulated by oxygen and cell density in colon cancer cells. Biochem J 2016; 473:2507-18. [PMID: 27316461 DOI: 10.1042/bcj20160477] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Accepted: 06/17/2016] [Indexed: 12/18/2022]
Abstract
The mammalian SPCA1 and SPCA2 ATPases localize in membranes of the secretory pathway and transport ions of Ca(2+) and Mn(2+) The role of tissue-specific SPCA2 isoform, highly expressed in lungs, mammary gland and gastrointestinal tract, is poorly understood. To elucidate the function of SPCA2, we studied human colon cancer HCT116 cells, grown under ambient and decreased O2 levels. We found that in contrast with other Ca(2+)-ATPase isoforms the expression of SPCA2 was up-regulated under hypoxia (3% O2), in both adherent (2D) and spheroid (3D) cultures. In spheroids, experiencing lowest O2 levels (30-50 μM, measured by phosphorescence lifetime imaging microscopy), we observed lower staining with reactive oxygen species (ROS)-specific fluorescent probe, which correlated with increased SPCA2. However, SPCA2 expression was up-regulated in cells exposed to reactive oxygen and nitrogen species donors, and when grown at higher density. We noticed that the culture exposed to hypoxia showed overall increase in S phase-positive cells and hypothesized that SPCA2 up-regulation under hypoxia can be linked to Mn(2+)-dependent cell cycle arrest. Consequently, we found that SPCA2-transfected cells display a higher number of cells entering S phase. Altogether, our results point at the important role of SPCA2 in regulation of cell cycle in cancer cells.
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36
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Ma Y, Liang H, Zeng Y, Yang H, Ho CL, Xu W, Zhao Q, Huang W, Wong WY. Phosphorescent soft salt for ratiometric and lifetime imaging of intracellular pH variations. Chem Sci 2016; 7:3338-3346. [PMID: 29997827 PMCID: PMC6006953 DOI: 10.1039/c5sc04624f] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Accepted: 02/04/2016] [Indexed: 12/30/2022] Open
Abstract
In contrast to traditional short-lived fluorescent probes, long-lived phosphorescent probes based on transition-metal complexes can effectively eliminate unwanted background interference by using time-resolved luminescence imaging techniques, such as photoluminescence lifetime imaging microscopy. Hence, phosphorescent probes have become one of the most attractive candidates for investigating biological events in living systems. However, most of them are based on single emission intensity changes, which might be affected by a variety of intracellular environmental factors. Ratiometric measurement allows simultaneous recording of two separated wavelengths instead of measuring mere intensity changes and thus offers built-in correction for environmental effects. Herein, for the first time, a soft salt based phosphorescent probe has been developed for ratiometric and lifetime imaging of intracellular pH variations in real time. Specifically, a pH sensitive cationic complex (C1) and a pH insensitive anionic complex (A1) are directly connected through electrostatic interaction to form a soft salt based probe (S1), which exhibits a ratiometric phosphorescent response to pH with two well-resolved emission peaks separated by about 150 nm (from 475 to 625 nm). This novel probe was then successfully applied for ratiometric and lifetime imaging of intracellular pH variations. Moreover, quantitative measurements of intracellular pH fluctuations caused by oxidative stress have been performed for S1 based on the pH-dependent calibration curve.
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Affiliation(s)
- Yun Ma
- Institute of Molecular Functional Materials , Department of Chemistry and Partner State Key Laboratory of Environmental and Biological Analysis , Hong Kong Baptist University , Waterloo Road , Hong Kong , P. R. China . ; ; Tel: +852 34117074
| | - Hua Liang
- Key Laboratory for Organic Electronics & Information Displays (KLOEID) , Institute of Advanced Materials (IAM) , Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM) , Nanjing University of Posts and Telecommunications , Nanjing 210023 , P. R. China . ; ; Tel: +86 25 85866396
| | - Yi Zeng
- Institute of Molecular Functional Materials , Department of Chemistry and Partner State Key Laboratory of Environmental and Biological Analysis , Hong Kong Baptist University , Waterloo Road , Hong Kong , P. R. China . ; ; Tel: +852 34117074
| | - Huiran Yang
- Key Laboratory for Organic Electronics & Information Displays (KLOEID) , Institute of Advanced Materials (IAM) , Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM) , Nanjing University of Posts and Telecommunications , Nanjing 210023 , P. R. China . ; ; Tel: +86 25 85866396
| | - Cheuk-Lam Ho
- Institute of Molecular Functional Materials , Department of Chemistry and Partner State Key Laboratory of Environmental and Biological Analysis , Hong Kong Baptist University , Waterloo Road , Hong Kong , P. R. China . ; ; Tel: +852 34117074
| | - Wenjuan Xu
- Key Laboratory for Organic Electronics & Information Displays (KLOEID) , Institute of Advanced Materials (IAM) , Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM) , Nanjing University of Posts and Telecommunications , Nanjing 210023 , P. R. China . ; ; Tel: +86 25 85866396
| | - Qiang Zhao
- Key Laboratory for Organic Electronics & Information Displays (KLOEID) , Institute of Advanced Materials (IAM) , Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM) , Nanjing University of Posts and Telecommunications , Nanjing 210023 , P. R. China . ; ; Tel: +86 25 85866396
| | - Wei Huang
- Key Laboratory for Organic Electronics & Information Displays (KLOEID) , Institute of Advanced Materials (IAM) , Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM) , Nanjing University of Posts and Telecommunications , Nanjing 210023 , P. R. China . ; ; Tel: +86 25 85866396
| | - Wai-Yeung Wong
- Institute of Molecular Functional Materials , Department of Chemistry and Partner State Key Laboratory of Environmental and Biological Analysis , Hong Kong Baptist University , Waterloo Road , Hong Kong , P. R. China . ; ; Tel: +852 34117074
- Institute of Polymer Optoelectronic Materials and Devices , State Key Laboratory of Luminescent Materials and Devices , South China University of Technology , Guangzhou 510640 , P. R. China
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37
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Poehler E, Pfeiffer SA, Herm M, Gaebler M, Busse B, Nagl S. Microchamber arrays with an integrated long luminescence lifetime pH sensor. Anal Bioanal Chem 2015; 408:2927-35. [DOI: 10.1007/s00216-015-9178-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2015] [Revised: 10/27/2015] [Accepted: 11/06/2015] [Indexed: 10/22/2022]
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38
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D'Anna F, Marullo S, Lazzara G, Vitale P, Noto R. Aggregation Processes of Perylene Bisimide Diimidazolium Salts. Chemistry 2015; 21:14780-90. [DOI: 10.1002/chem.201502240] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2015] [Indexed: 12/17/2022]
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39
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Pramod PS, Deshpande NU, Jayakannan M. Real-Time Drug Release Analysis of Enzyme and pH Responsive Polysaccharide Nanovesicles. J Phys Chem B 2015; 119:10511-23. [PMID: 26237375 DOI: 10.1021/acs.jpcb.5b05795] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The accurate estimation of drug release kinetics of polymeric vehicles is an indispensable prerequisite for the developments of successful drug carriers for cancer therapy. The present investigation reports the development of time-resolved fluorescence spectroscopic approach for the real-time release kinetics of fluorophore loaded polysaccharide vesicles that are potential vectors in cancer treatment. The polysaccharide vesicles were custom designed with appropriate enzyme and pH responsiveness and loaded with water-soluble biocompatible fluorophore Rhodamine B (Rh-B). The semipermeable membrane dialysis method along with steady state absorbance spectroscopic technique was found to be inaccurate for the estimation of drug release. Time correlated single photon counting (TCSPC) technique was found to exhibit significant difference in excited state decay profiles and fluorescent lifetime of Rh-B in the free and polymer bound states. This enabled the establishment of real-time drug release protocols by TCSPC method for polysaccharide vesicles that are responsible to pH and enzyme with respect to intracellular compartments. Real-time analysis predicted the release kinetics 20-25% higher accuracy when compared to the dialysis method under in vitro conditions. Moreover, the ability of enzyme to cleave the polysaccharide vesicles was further validated by docking studies. The positioning of the molecules in active site of enzyme and the binding energy data were generated using AUTODOCK program to study the rupture of polysaccharide vesicles. This new TCSPC technique could be very useful for studying the drug release pattern of synthetic polymer vesicles loaded with Rh-B fluorophore.
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Affiliation(s)
- Poothayil Subash Pramod
- Department of Chemistry, Indian Institute of Science Education and Research (IISER)-Pune, Dr. Homi Bhabha Road, Pune 411008, Maharashtra, India
| | - Nilesh Umakant Deshpande
- Department of Chemistry, Indian Institute of Science Education and Research (IISER)-Pune, Dr. Homi Bhabha Road, Pune 411008, Maharashtra, India
| | - Manickam Jayakannan
- Department of Chemistry, Indian Institute of Science Education and Research (IISER)-Pune, Dr. Homi Bhabha Road, Pune 411008, Maharashtra, India
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40
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Abstract
Visualization of biological processes and pathologic conditions at the cellular and tissue levels largely relies on the use of fluorescence intensity signals from fluorophores or their bioconjugates. To overcome the concentration dependency of intensity measurements, evaluate subtle molecular interactions, and determine biochemical status of intracellular or extracellular microenvironments, fluorescence lifetime (FLT) imaging has emerged as a reliable imaging method complementary to intensity measurements. Driven by a wide variety of dyes exhibiting stable or environment-responsive FLTs, information multiplexing can be readily accomplished without the need for ratiometric spectral imaging. With knowledge of the fluorescent states of the molecules, it is entirely possible to predict the functional status of biomolecules or microevironment of cells. Whereas the use of FLT spectroscopy and microscopy in biological studies is now well-established, in vivo imaging of biological processes based on FLT imaging techniques is still evolving. This review summarizes recent advances in the application of the FLT of molecular probes for imaging cells and small animal models of human diseases. It also highlights some challenges that continue to limit the full realization of the potential of using FLT molecular probes to address diverse biological problems and outlines areas of potential high impact in the future.
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Affiliation(s)
- Pinaki Sarder
- Department of Radiology, Washington University School of Medicine, 4525 Scott Avenue, St. Louis, Missouri 63110
| | - Dolonchampa Maji
- Department of Radiology, Washington University School of Medicine, 4525 Scott Avenue, St. Louis, Missouri 63110
- Department of Biomedical Engineering, Washington University School of Medicine, 4525 Scott Avenue, St. Louis, Missouri 63110
| | - Samuel Achilefu
- Department of Radiology, Washington University School of Medicine, 4525 Scott Avenue, St. Louis, Missouri 63110
- Department of Biomedical Engineering, Washington University School of Medicine, 4525 Scott Avenue, St. Louis, Missouri 63110
- Department of Biochemistry and Molecular Biophysics, Washington University School of Medicine, 4525 Scott Avenue, St. Louis, Missouri 63110
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41
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Dmitriev RI, Borisov SM, Düssmann H, Sun S, Müller BJ, Prehn J, Baklaushev VP, Klimant I, Papkovsky DB. Versatile Conjugated Polymer Nanoparticles for High-Resolution O2 Imaging in Cells and 3D Tissue Models. ACS NANO 2015; 9:5275-88. [PMID: 25858428 DOI: 10.1021/acsnano.5b00771] [Citation(s) in RCA: 90] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
High brightness, chemical and photostability, tunable characteristics, and spectral and surface properties are important attributes for nanoparticle probes designed for live cell imaging. We describe a class of nanoparticles for high-resolution imaging of O2 that consists of a substituted conjugated polymer (polyfluorene or poly(fluorene-alt-benzothiadiazole)) acting as a FRET antenna and a fluorescent reference with covalently bound phosphorescent metalloporphyrin (PtTFPP, PtTPTBPF). The nanoparticles prepared from such copolymers by precipitation method display stability, enhanced (>5-10 times) brightness under one- and two-photon excitation, compatibility with ratiometric and lifetime-based imaging modes, and low toxicity for cells. Their cell-staining properties can be modulated with positively and negatively charged groups grafted to the backbone. The "zwitter-ionic" nanoparticles show high cell-staining efficiency, while their cell entry mechanisms differ for the different 3D models. When injected in the bloodstream, the cationic and anionic nanoparticles show similar distribution in vivo. These features and tunable properties make the conjugated polymer based phosphorescent nanoparticles a versatile tool for quantitative O2 imaging with a broad range of cell and 3D tissue models.
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Affiliation(s)
- Ruslan I Dmitriev
- †School of Biochemistry and Cell Biology, University College Cork, Cork, Ireland
| | - Sergey M Borisov
- ‡Institute of Analytical Chemistry and Food Chemistry, Graz University of Technology, Graz 8010, Austria
| | - Heiko Düssmann
- §Department of Physiology and Medical Physics, Centre for the Study of Neurological Disorders, Royal College of Surgeons in Ireland, Dublin 2, Ireland
| | - Shiwen Sun
- ‡Institute of Analytical Chemistry and Food Chemistry, Graz University of Technology, Graz 8010, Austria
| | - Bernhard J Müller
- ‡Institute of Analytical Chemistry and Food Chemistry, Graz University of Technology, Graz 8010, Austria
| | - Jochen Prehn
- §Department of Physiology and Medical Physics, Centre for the Study of Neurological Disorders, Royal College of Surgeons in Ireland, Dublin 2, Ireland
| | - Vladimir P Baklaushev
- ∥Department of Medicinal Nanobiotechnology, Pirogov Russian State Medical University, Moscow 115682, Russia
- ⊥Federal Research Clinical Centre of Federal Medical and Biological Agency of Russia, Moscow, Russia
| | - Ingo Klimant
- ‡Institute of Analytical Chemistry and Food Chemistry, Graz University of Technology, Graz 8010, Austria
| | - Dmitri B Papkovsky
- †School of Biochemistry and Cell Biology, University College Cork, Cork, Ireland
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