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Gui R, Jin H. Organic fluorophores-based molecular probes with dual-fluorescence ratiometric responses to in-vitro/in-vivo pH for biosensing, bioimaging and biotherapeutics applications. Talanta 2024; 275:126171. [PMID: 38703479 DOI: 10.1016/j.talanta.2024.126171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 04/19/2024] [Accepted: 04/25/2024] [Indexed: 05/06/2024]
Abstract
In recent years, organic fluorophores-based molecular probes with dual-fluorescence ratiometric responses to in-vitro/in-vivo pH (DFR-MPs-pH) have been attracting much interest in fundamental application research fields. More and more scientific publications have reported the exploration of various DFR-MPs-pH systems that have unique dual-fluorescence ratiometry as the signal output, in-built and signal self-calibration functions to improve precise detection of targets. DFR-MPs-pH systems possess high-performance applications in biosensing, bioimaging and biomedicine fields. This review has comprehensively summarized recent advances of DFR-MPs-pH for the first time. First of all, the compositions and types of DFR-MPs-pH are introduced by summarizing different organic fluorophores-based molecule systems. Then, construction strategies are analyzed based on specific components, structures, properties and functions of DFR-MPs-pH. Afterward, biosensing and bioimaging applications are discussed in detail, primarily referring to pH sensing and imaging detection at the levels of living cells and small animals. Finally, biomedicine applications are fully summarized, majorly involving bio-toxicity evaluation, bio-distribution, biomedical diagnosis and therapeutics. Meanwhile, the current status, challenges and perspectives are rationally commented after detailed discussions of representative and state-of-the-art studies. Overall, this present review is comprehensive, in-time and in-depth, and can facilitate the following further exploration of new and versatile DFR-MPs-pH systems toward rational design, facile preparation, superior properties, adjustable functions and highly efficient applications in promising fields.
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Affiliation(s)
- Rijun Gui
- College of Chemistry and Chemical Engineering, Intellectual Property Research Institute, Qingdao University, Shandong, 266071, PR China.
| | - Hui Jin
- College of Chemistry and Chemical Engineering, Intellectual Property Research Institute, Qingdao University, Shandong, 266071, PR China
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2
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Panchenko PA, Fedorov YV, Polyakova AS, Fedorova OA. Fluorimetric detection of Ag+ cations in aqueous solutions using a polyvinyl chloride sensor film doped with crown-containing 1,8-naphthalimide. MENDELEEV COMMUNICATIONS 2021. [DOI: 10.1016/j.mencom.2021.07.027] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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3
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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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Martins C, Chauhan VM, Araújo M, Abouselo A, Barrias CC, Aylott JW, Sarmento B. Advanced polymeric nanotechnology to augment therapeutic delivery and disease diagnosis. Nanomedicine (Lond) 2020; 15:2287-2309. [PMID: 32945230 DOI: 10.2217/nnm-2020-0145] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Therapeutic and diagnostic payloads are usually associated with properties that compromise their efficacy, such as poor aqueous solubility, short half-life, low bioavailability, nonspecific accumulation and diverse side effects. Nanotechnological solutions have emerged to circumvent some of these drawbacks, augmenting therapeutic and/or diagnostic outcomes. Nanotechnology has benefited from the rise in polymer science research for the development of novel nanosystems for therapeutic and diagnostic purposes. Polymers are a widely used class of biomaterials, with a considerable number of regulatory approvals for application in clinics. In addition to their versatility in production and functionalization, several synthetic and natural polymers demonstrate biocompatible properties that dictate their successful biological performance. This article highlights the physicochemical characteristics of a variety of natural and synthetic biocompatible polymers, as well as their role in the manufacture of nanotechnology-based systems, state-of-art applications in disease treatment and diagnosis, and current challenges in finding a way to clinics.
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Affiliation(s)
- Cláudia Martins
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, 4200-393, Porto, Portugal.,INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen 208, 4200-393, Porto, Portugal.,School of Pharmacy, Boots Science Building, University of Nottingham, Nottingham, NG7 2RD, UK.,ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Ruade Jorge Viterbo Ferreira 228, 4050-313, Porto, Portugal
| | - Veeren M Chauhan
- School of Pharmacy, Boots Science Building, University of Nottingham, Nottingham, NG7 2RD, UK
| | - Marco Araújo
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, 4200-393, Porto, Portugal.,INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen 208, 4200-393, Porto, Portugal
| | - Amjad Abouselo
- School of Pharmacy, Boots Science Building, University of Nottingham, Nottingham, NG7 2RD, UK
| | - Cristina C Barrias
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, 4200-393, Porto, Portugal.,INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen 208, 4200-393, Porto, Portugal
| | - Jonathan W Aylott
- School of Pharmacy, Boots Science Building, University of Nottingham, Nottingham, NG7 2RD, UK
| | - Bruno Sarmento
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, 4200-393, Porto, Portugal.,INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen 208, 4200-393, Porto, Portugal.,CESPU - Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Rua Central de Gandra 1317, 4585-116, Gandra, Portugal
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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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Grazon C, Si Y, Placial JP, Rieger J, Méallet-Renault R, Clavier G. Core–shell polymeric nanoparticles comprising BODIPY and fluorescein as ultra-bright ratiometric fluorescent pH sensors. Photochem Photobiol Sci 2019; 18:1156-1165. [DOI: 10.1039/c8pp00457a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ultra-bright pH-sensitive fluorescent nanoparticles, including BODIPY in their core and fluorescein in their shell, are synthesized. They contain more than 2500 fluorophores and exhibit a linear fluorescence response between pH 5.5 and 7.5.
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Affiliation(s)
- Chloé Grazon
- PPSM
- ENS Cachan
- CNRS
- Université Paris-Saclay
- 94235 Cachan
| | - Yang Si
- PPSM
- ENS Cachan
- CNRS
- Université Paris-Saclay
- 94235 Cachan
| | | | - Jutta Rieger
- Sorbonne Université
- CNRS
- Institut Parisien de Chimie Moléculaire
- 75005 Paris
- France
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Saito G, Velluto D, Resmini M. Synthesis of 1,8-naphthalimide-based probes with fluorescent switch triggered by flufenamic acid. ROYAL SOCIETY OPEN SCIENCE 2018; 5:172137. [PMID: 30110473 PMCID: PMC6030310 DOI: 10.1098/rsos.172137] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Accepted: 05/14/2018] [Indexed: 05/26/2023]
Abstract
In this work, we report the synthesis of novel fluorescent molecules, based on 1,8-naphthalimide thio- and amino-derivatives, designed to display an OFF-ON and ON-OFF photoelectron transfer fluorescence switch upon interaction with a proton-donor drug. We have functionalized the new probes to allow easy formation of a covalent link to polymer matrices, for future applications as drug delivery sensors. We have investigated the fluorescent switch of the new probes using flufenamic acid (FA, pKa 3.65), a water insoluble, non-steroidal anti-inflammatory drug, as a model drug and proton source. The rapid interaction of the new probes with FA resulted in fluorescence enhancement or decrease and a large Stokes shift, all of which allowed the detection of the drug in the nanomolar range. The new 1,8-naphthalimide fluorescent dyes reported in this work are interesting tools for the detection and quantification of acidic drugs and biomolecules.
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Affiliation(s)
- G. Saito
- Department of Chemistry and Biochemistry, SBCS, Queen Mary University of London, E1 4NS London, UK
| | - D. Velluto
- Department of Chemistry and Biochemistry, SBCS, Queen Mary University of London, E1 4NS London, UK
- Diabetes Research Institute and Cell Transplant Center, University of Miami Leonard M. Miller School of Medicine, Miami, FL 33136, USA
| | - M. Resmini
- Department of Chemistry and Biochemistry, SBCS, Queen Mary University of London, E1 4NS London, UK
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9
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Pratiwi FW, Hsia CH, Kuo CW, Yang SM, Hwu YK, Chen P. Construction of single fluorophore ratiometric pH sensors using dual-emission Mn2+-doped quantum dots. Biosens Bioelectron 2016; 84:133-40. [DOI: 10.1016/j.bios.2016.01.079] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Revised: 01/26/2016] [Accepted: 01/28/2016] [Indexed: 01/04/2023]
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Schäferling M. Nanoparticle-based luminescent probes for intracellular sensing and imaging of pH. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2015; 8:378-413. [PMID: 26395962 DOI: 10.1002/wnan.1366] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2015] [Revised: 07/06/2015] [Accepted: 07/22/2015] [Indexed: 12/13/2022]
Abstract
Fluorescence imaging microscopy is an essential tool in biomedical research. Meanwhile, various fluorescent probes are available for the staining of cells, cell membranes, and organelles. Though, to monitor intracellular processes and dysfunctions, probes that respond to ubiquitous chemical parameters determining the cellular function such as pH, pO2 , and Ca(2+) are required. This review is focused on the progress in the design, fabrication, and application of photoluminescent nanoprobes for sensing and imaging of pH in living cells. The advantages of using nanoprobes carrying fluorescent pH indicators compared to single molecule probes are discussed as well as their limitations due to the mostly lysosomal uptake by cells. Particular attention is paid to ratiometric dual wavelength nanosensors that enable intrinsic referenced measurements. Referencing and proper calibration procedures are basic prerequisites to carry out reliable quantitative pH determinations in complex samples such as living cells. A variety of examples will be presented that highlight the diverseness of nanocarrier materials (polymers, micelles, silica, quantum dots, carbon dots, gold, photon upconversion nanocrystals, or bacteriophages), fluorescent pH indicators for the weak acidic range, and referenced sensing mechanisms, that have been applied intracellularly up to now. WIREs Nanomed Nanobiotechnol 2016, 8:378-413. doi: 10.1002/wnan.1366 For further resources related to this article, please visit the WIREs website.
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Affiliation(s)
- Michael Schäferling
- Division 1.10 Biophotonics, Federal Institute for Materials Research and Testing, Berlin, Germany
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Søndergaard RV, Christensen NM, Henriksen JR, Kumar EKP, Almdal K, Andresen TL. Facing the Design Challenges of Particle-Based Nanosensors for Metabolite Quantification in Living Cells. Chem Rev 2015; 115:8344-78. [PMID: 26244372 DOI: 10.1021/cr400636x] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Rikke V Søndergaard
- Department of Micro- and Nanotechnology, Technical University of Denmark , Produktionstorvet 423, 2800 Lyngby, Denmark
| | - Nynne M Christensen
- Department of Micro- and Nanotechnology, Technical University of Denmark , Produktionstorvet 423, 2800 Lyngby, Denmark
| | - Jonas R Henriksen
- Department of Micro- and Nanotechnology, Technical University of Denmark , Produktionstorvet 423, 2800 Lyngby, Denmark
| | - E K Pramod Kumar
- Department of Micro- and Nanotechnology, Technical University of Denmark , Produktionstorvet 423, 2800 Lyngby, Denmark
| | - Kristoffer Almdal
- Department of Micro- and Nanotechnology, Technical University of Denmark , Produktionstorvet 423, 2800 Lyngby, Denmark
| | - Thomas L Andresen
- Department of Micro- and Nanotechnology, Technical University of Denmark , Produktionstorvet 423, 2800 Lyngby, Denmark
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12
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Zhang M, Søndergaard RV, Kumar EKP, Henriksen JR, Cui D, Hammershøj P, Clausen MH, Andresen TL. A hydrogel based nanosensor with an unprecedented broad sensitivity range for pH measurements in cellular compartments. Analyst 2015; 140:7246-53. [DOI: 10.1039/c5an01014d] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
This quadruple-labelled nanosensor has a broad sensitivity range from pH 1.4 to 7.0. It covers the full physiologically relevant range where especially the low pH range of some specialized cells can now be monitored.
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Affiliation(s)
- M. Zhang
- School of Life Sciences and Biotechnology
- Shanghai Jiao Tong University
- Shanghai
- China
- Institute of Nano Biomedicine and Engineering
| | - R. V. Søndergaard
- Department of Micro- and Nanotechnology
- Technical University of Denmark
- Lyngby
- Denmark
- Center for Nanomedicine and Theranostics
| | - E. K. P. Kumar
- Department of Micro- and Nanotechnology
- Technical University of Denmark
- Lyngby
- Denmark
- Center for Nanomedicine and Theranostics
| | - J. R. Henriksen
- Center for Nanomedicine and Theranostics
- Technical University of Denmark
- Lyngby
- Denmark
- Department of Chemistry
| | - D. Cui
- Institute of Nano Biomedicine and Engineering
- Department of Instrument Science and Engineering
- School of Electronic Information and Electrical Engineering
- Shanghai Jiao Tong University
- Shanghai
| | - P. Hammershøj
- Center for Nanomedicine and Theranostics
- Technical University of Denmark
- Lyngby
- Denmark
- Department of Chemistry
| | - M. H. Clausen
- Center for Nanomedicine and Theranostics
- Technical University of Denmark
- Lyngby
- Denmark
- Department of Chemistry
| | - T. L. Andresen
- Department of Micro- and Nanotechnology
- Technical University of Denmark
- Lyngby
- Denmark
- Center for Nanomedicine and Theranostics
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13
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Panchenko PA, Fedorova OA, Fedorov YV. Fluorescent and colorimetric chemosensors for cations based on 1,8-naphthalimide derivatives: design principles and optical signalling mechanisms. RUSSIAN CHEMICAL REVIEWS 2014. [DOI: 10.1070/rc2014v083n02abeh004380] [Citation(s) in RCA: 87] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Yang Z, Cao J, He Y, Yang JH, Kim T, Peng X, Kim JS. Macro-/micro-environment-sensitive chemosensing and biological imaging. Chem Soc Rev 2014; 43:4563-601. [DOI: 10.1039/c4cs00051j] [Citation(s) in RCA: 604] [Impact Index Per Article: 60.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
We have summarized the research progress on fluorescent sensors responsive to environmental factors, including local viscosity, polarity, temperature, hypoxia and pH.
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Affiliation(s)
- Zhigang Yang
- Department of Chemistry
- Korea University
- Seoul 136-701, Korea
- Key Laboratory of Sensor Analysis of Tumor Marker Ministry of Education
- College of Chemistry and Molecular Engineering
| | - Jianfang Cao
- State Key Laboratory of Fine Chemicals
- Dalian University of Technology
- Dalian 116024, China
| | - Yanxia He
- Department of Chemistry
- Korea University
- Seoul 136-701, Korea
- Key Laboratory of Sensor Analysis of Tumor Marker Ministry of Education
- College of Chemistry and Molecular Engineering
| | - Jung Ho Yang
- Department of Chemistry
- Korea University
- Seoul 136-701, Korea
| | - Taeyoung Kim
- Department of Chemistry
- Korea University
- Seoul 136-701, Korea
| | - Xiaojun Peng
- State Key Laboratory of Fine Chemicals
- Dalian University of Technology
- Dalian 116024, China
| | - Jong Seung Kim
- Department of Chemistry
- Korea University
- Seoul 136-701, Korea
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Chauhan VM, Orsi G, Brown A, Pritchard DI, Aylott JW. Mapping the pharyngeal and intestinal pH of Caenorhabditis elegans and real-time luminal pH oscillations using extended dynamic range pH-sensitive nanosensors. ACS NANO 2013; 7:5577-87. [PMID: 23668893 DOI: 10.1021/nn401856u] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Extended dynamic range pH-sensitive ratiometric nanosensors, capable of accurately mapping the full physiological pH range, have been developed and used to characterize the pH of the pharyngeal and intestinal lumen of Caenorhabditis elegans in real-time. Nanosensors, 40 nm in diameter, were prepared by conjugating pH-sensitive fluorophores, carboxyfluorescein (FAM) and Oregon Green (OG) in a 1:1 ratio, and a reference fluorophore, 5-(and-6)-carboxytetramethylrhodamine (TAMRA) to an inert polyacrylamide matrix. Accurate ratiometric pH measurements were calculated through determination of the fluorescence ratio between the pH-sensitive and reference fluorophores. Nanosensors were calibrated with an automated image analysis system and validated to demonstrate a pH measurement resolution of ±0.17 pH units. The motility of C. elegans populations, as an indicator for viability, showed nematodes treated with nanosensors, for concentrations ranging from 50.00 to 3.13 mg/mL, were not statistically different to nematodes not challenged with nanosensors up to a period of 4 days (p < 0.05). The nanosensors were also found to remain in the C. elegans lumen >24 h after nanosensor challenge was removed. The pH of viable C. elegans lumen was found to range from 5.96 ± 0.31 in the anterior pharynx to 3.59 ± 0.09 in the posterior intestine. The pharyngeal pumping rate, which dictates the transfer of ingested material from the pharynx to the intestine, was found to be temperature dependent. Imaging C. elegans at 4 °C reduced the pharyngeal pumping rate to 7 contractions/min and enabled the reconstruction of rhythmic pH oscillations in the intestinal lumen in real-time with fluorescence microscopy.
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Affiliation(s)
- Veeren M Chauhan
- Laboratory of Biophysics and Surface Analysis, School of Pharmacy, University of Nottingham, Boots Sciences Building, University Park, Nottingham, United Kingdom NG7 2RD
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Zhou J, Fang C, Chang T, Liu X, Shangguan D. A pH sensitive ratiometric fluorophore and its application for monitoring the intracellular and extracellular pHs simultaneously. J Mater Chem B 2013; 1:661-667. [DOI: 10.1039/c2tb00179a] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Yu C, Wu Y, Zeng F, Wu S. A fluorescent ratiometric nanosensor for detecting NO in aqueous media and imaging exogenous and endogenous NO in live cells. J Mater Chem B 2013; 1:4152-4159. [DOI: 10.1039/c3tb20686f] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Yu C, Li X, Zeng F, Zheng F, Wu S. Carbon-dot-based ratiometric fluorescent sensor for detecting hydrogen sulfide in aqueous media and inside live cells. Chem Commun (Camb) 2013. [DOI: 10.1039/c2cc37329g] [Citation(s) in RCA: 397] [Impact Index Per Article: 36.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Tsou CJ, Chu CY, Hung Y, Mou CY. A broad range fluorescent pH sensor based on hollow mesoporous silica nanoparticles, utilising the surface curvature effect. J Mater Chem B 2013; 1:5557-5563. [DOI: 10.1039/c3tb21009j] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Wang XD, Meier RJ, Wolfbeis OS. Fluorescent pH-sensitive nanoparticles in an agarose matrix for imaging of bacterial growth and metabolism. Angew Chem Int Ed Engl 2012; 52:406-9. [PMID: 23047845 DOI: 10.1002/anie.201205715] [Citation(s) in RCA: 104] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2012] [Indexed: 01/21/2023]
Abstract
Living color: fluorescent pH-sensitive nanoparticles 12 nm in diameter were prepared and incorporated into agarose gel in a Petri dish to image pH changes during bacterial growth and metabolism.
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Affiliation(s)
- Xu-dong Wang
- Institute of Analytical Chemistry, Chemo- and Biosensors, University of Regensburg, Germany.
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Wang XD, Meier RJ, Wolfbeis OS. Fluorescent pH-Sensitive Nanoparticles in an Agarose Matrix for Imaging of Bacterial Growth and Metabolism. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201205715] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Marín MJ, Galindo F, Thomas P, Russell DA. Localized intracellular pH measurement using a ratiometric photoinduced electron-transfer-based nanosensor. Angew Chem Int Ed Engl 2012; 51:9657-61. [PMID: 22907743 DOI: 10.1002/anie.201203866] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2012] [Indexed: 11/08/2022]
Affiliation(s)
- María J Marín
- School of Chemistry, University of East Anglia, Norwich, Norfolk NR4 7TJ, UK
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Marín MJ, Galindo F, Thomas P, Russell DA. Localized Intracellular pH Measurement Using a Ratiometric Photoinduced Electron-Transfer-Based Nanosensor. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201203866] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Desbiens J, Bergeron B, Patry M, Ritcey AM. Polystyrene nanoparticles doped with a luminescent europium complex. J Colloid Interface Sci 2012; 376:12-9. [PMID: 22459030 DOI: 10.1016/j.jcis.2012.02.020] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2011] [Revised: 02/07/2012] [Accepted: 02/11/2012] [Indexed: 10/28/2022]
Abstract
Polystyrene nanoparticles doped with a luminescent europium complex, Eu(tta)(3)phen, are prepared by miniemulsion polymerization. The influence of the complex on the miniemulsion polymerization is investigated by the systematic variation of the initial concentration of Eu(tta)(3)phen from 2 to 7 wt% relatively to styrene. A maximum doping level of about 2% by weight in the final particles can be achieved. At higher doping levels, destabilization of the miniemulsion leads to a loss of reproducibility with respect to both the degree of conversion and the final Eu content of the particles. Doped nanoparticles of varying diameter, ranging from 19 to 94 nm, are successfully prepared. Steady-state and time-resolved luminescence measurements indicate that the luminescence properties of Eu(tta)(3)phen in the doped latexes are unchanged from those found in THF solution. Aqueous dispersions of the doped particles exhibit characteristic red emission under UV light irradiation. The luminescence intensity increases linearly with Eu(tta)(3)phen content, indicating the absence of self-quenching despite the relatively high local concentrations within the particles.
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Affiliation(s)
- Jessie Desbiens
- Département de chimie and CERMA, Université Laval, Pavillon Alexandre-Vachon, 1045, avenue de la Médecine, Québec (Québec), Canada G1V 0A6
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Lapresta-Fernández A, Doussineau T, Moro A, Dutz S, Steiniger F, Mohr G. Magnetic core–shell fluorescent pH ratiometric nanosensor using a Stöber coating method. Anal Chim Acta 2011; 707:164-70. [DOI: 10.1016/j.aca.2011.09.008] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2011] [Revised: 08/31/2011] [Accepted: 09/07/2011] [Indexed: 11/26/2022]
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28
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Xu J, Sun L, Li J, Liang J, Zhang H, Yang W. FITC and Ru(phen)32+ co-doped silica particles as visualized ratiometric pH indicator. NANOSCALE RESEARCH LETTERS 2011; 6:561. [PMID: 22027093 PMCID: PMC3220666 DOI: 10.1186/1556-276x-6-561] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2011] [Accepted: 10/25/2011] [Indexed: 05/29/2023]
Abstract
The performance of fluorescein isothiocyanate (FITC) and tris(1, 10-phenanathroline) ruthenium ion (Ru(phen)32+) co-doped silica particles as pH indicator was evaluated. The emission intensity ratios of the pH sensitive dye (FITC) and the reference dye (Ru(phen)32+) in the particles were dependent on pH of the environment. The changes in emission intensity ratios of the two dyes under different pH could be measured under single excitation wavelength and readily visualized by naked eye under a 365-nm UV lamp. In particular, such FITC and Ru(phen)32+ co-doped silica particles were identified to show high sensitivity to pH around the pKa of FITC (6.4), making them be potential useful as visualized pH indicator for detection of intracellular pH micro-circumstance.
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Affiliation(s)
- Jianquan Xu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, People's Republic of China
| | - Lei Sun
- College of Public Health, Jilin University, Changchun, Jilin, 130021, People's Republic of China
| | - Jun Li
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, People's Republic of China
| | - Jinglun Liang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, People's Republic of China
| | - Huimao Zhang
- China-Japan Union Hospital, Jilin University, Changchun 130033, People's Republic of China
| | - Wensheng Yang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, People's Republic of China
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29
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Benjaminsen RV, Sun H, Henriksen JR, Christensen NM, Almdal K, Andresen TL. Evaluating nanoparticle sensor design for intracellular pH measurements. ACS NANO 2011; 5:5864-5873. [PMID: 21707035 DOI: 10.1021/nn201643f] [Citation(s) in RCA: 115] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Particle-based nanosensors have over the past decade been designed for optical fluorescent-based ratiometric measurements of pH in living cells. However, quantitative and time-resolved intracellular measurements of pH in endosomes and lysosomes using particle nanosensors are challenging, and there is a need to improve measurement methodology. In the present paper, we have successfully carried out time-resolved pH measurements in endosomes and lyosomes in living cells using nanoparticle sensors and show the importance of sensor choice for successful quantification. We have studied two nanoparticle-based sensor systems that are internalized by endocytosis and elucidated important factors in nanosensor design that should be considered in future development of new sensors. From our experiments it is clear that it is highly important to use sensors that have a broad measurement range, as erroneous quantification of pH is an unfortunate result when measuring pH too close to the limit of the sensitive range of the sensors. Triple-labeled nanosensors with a pH measurement range of 3.2-7.0, which was synthesized by adding two pH-sensitive fluorophores with different pK(a) to each sensor, seem to be a solution to some of the earlier problems found when measuring pH in the endosome-lysosome pathway.
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Affiliation(s)
- Rikke V Benjaminsen
- DTU Nanotech, Department of Micro- and Nanotechnology, Technical University of Denmark, Building 423, 2800 Lyngby, Denmark
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30
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Chan YH, Wu C, Ye F, Jin Y, Smith PB, Chiu DT. Development of ultrabright semiconducting polymer dots for ratiometric pH sensing. Anal Chem 2011; 83:1448-55. [PMID: 21244093 PMCID: PMC3039106 DOI: 10.1021/ac103140x] [Citation(s) in RCA: 230] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Semiconducting polymer-based nanoparticles (Pdots) have recently emerged as a new class of ultrabright probes for biological detection and imaging. This paper describes the development of poly(2,5-di(3',7'-dimethyloctyl)phenylene-1,4-ethynylene) (PPE) Pdots as a platform for designing Förster resonance energy transfer (FRET)-based ratiometric pH nanoprobes. We describe and compare three routes for coupling the pH-sensitive dye, fluorescein, to PPE Pdots, which is a pH-insensitive semiconducting polymer. This approach offers a rapid and robust sensor for pH determination using the ratiometric methodology where excitation at a single wavelength results in two emission peaks, one that is pH sensitive and the other one that is pH insensitive for use as an internal reference. The linear range for pH sensing of the fluorescein-coupled Pdots is between pH 5.0 and 8.0, which is suitable for most cellular studies. The pH-sensitive Pdots show excellent reversibility and stability in pH measurements. In this paper, we use them to measure the intracellular pH in HeLa cells following their uptake by endocytosis, thus demonstrating their utility for use in cellular and imaging experiments.
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Affiliation(s)
- Yang-Hsiang Chan
- Department of Chemistry, University of Washington, Seattle, Washington 98195
| | - Changfeng Wu
- Department of Chemistry, University of Washington, Seattle, Washington 98195
| | - Fangmao Ye
- Department of Chemistry, University of Washington, Seattle, Washington 98195
| | - Yuhui Jin
- Department of Chemistry, University of Washington, Seattle, Washington 98195
| | - Polina B. Smith
- Department of Chemistry, University of Washington, Seattle, Washington 98195
| | - Daniel T. Chiu
- Department of Chemistry, University of Washington, Seattle, Washington 98195
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31
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Nielsen LJ, Olsen LF, Ozalp VC. Aptamers embedded in polyacrylamide nanoparticles: a tool for in vivo metabolite sensing. ACS NANO 2010; 4:4361-70. [PMID: 20731422 DOI: 10.1021/nn100635j] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
We describe a new type of aptamer-based optical nanosensor which uses the embedding of target responsive oligonucleotides in porous polyacrylamide nanoparticles to eliminate nuclease instability. The latter is a common problem in the use of aptamer sensors in biological environments. These aptamers embedded in nanoparticles (AptaNPs) are proposed as a tool in real-time metabolite measurements in living cells. The AptaNPs comprise 30 nm polyacrylamide nanoparticles, prepared by inverse microemulsion polymerization, which contain water-soluble aptamer switch probes (ASPs) trapped in the porous matrix of the nanoparticles. The matrix acts as a molecular fence allowing rapid diffusion of small metabolites into the particles to interact with the aptamer molecules, but at the same time it retains the larger aptamer molecules inside the nanoparticles providing protection against intracellular degradation. We tested the ability of the AptaNPs to measure the adenine-nucleotide content in yeast cells. Our results successfully demonstrate the potential for monitoring any metabolite of interest in living cells by selecting specific aptamers and embedding them in nanoparticles.
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Affiliation(s)
- Lise J Nielsen
- CelCom, Department of Biochemistry and Molecular Biology, University of Southern Denmark, Campusvej 55, 5230, Odense M, Denmark
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32
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Doussineau T, Schulz A, Lapresta-Fernandez A, Moro A, Körsten S, Trupp S, Mohr G. On the Design of Fluorescent Ratiometric Nanosensors. Chemistry 2010; 16:10290-9. [DOI: 10.1002/chem.201000829] [Citation(s) in RCA: 96] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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