1
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Csányi E, Hammond DB, Bower B, Johnson EC, Lishchuk A, Armes SP, Dong Z, Leggett GJ. XPS Depth-Profiling Studies of Chlorophyll Binding to Poly(cysteine methacrylate) Scaffolds in Pigment-Polymer Antenna Complexes Using a Gas Cluster Ion Source. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024. [PMID: 38954522 DOI: 10.1021/acs.langmuir.4c01361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/04/2024]
Abstract
X-ray photoelectron spectroscopy (XPS) depth-profiling with an argon gas cluster ion source (GCIS) was used to characterize the spatial distribution of chlorophyll a (Chl) within a poly(cysteine methacrylate) (PCysMA) brush grown by surface-initiated atom-transfer radical polymerization (ATRP) from a planar surface. The organization of Chl is controlled by adjusting the brush grafting density and polymerization time. For dense brushes, the C, N, S elemental composition remains constant throughout the 36 nm brush layer until the underlying gold substrate is approached. However, for either reduced density brushes (mean thickness ∼20 nm) or mushrooms grown with reduced grafting densities (mean thickness 6-9 nm), elemental intensities decrease continuously throughout the brush layer, because photoelectrons are less strongly attenuated for such systems. For all brushes, the fraction of positively charged nitrogen atoms (N+/N0) decreases with increasing depth. Chl binding causes a marked reduction in N+/N0 within the brushes and produces a new feature at 398.1 eV in the N1s core-line spectrum assigned to tetrapyrrole ring nitrogen atoms coordinated to Zn2+. For all grafting densities, the N/S atomic ratio remains approximately constant as a function of brush depth, which indicates a uniform distribution of Chl throughout the brush layer. However, a larger fraction of repeat units bound to Chl is observed at lower grafting densities, reflecting a progressive reduction in steric congestion that enables more uniform distribution of the bulky Chl units throughout the brush layer. In summary, XPS depth-profiling using a GCIS is a powerful tool for characterization of these complex materials.
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Affiliation(s)
- Evelin Csányi
- Department of Chemistry, University of Sheffield, Brook Hill, Sheffield S3 7HF, U.K
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, #08-03 Innovis, 138634 Singapore
| | - Deborah B Hammond
- Department of Chemistry, University of Sheffield, Brook Hill, Sheffield S3 7HF, U.K
| | - Benjamin Bower
- Department of Chemistry, University of Sheffield, Brook Hill, Sheffield S3 7HF, U.K
| | - Edwin C Johnson
- Department of Chemistry, University of Sheffield, Brook Hill, Sheffield S3 7HF, U.K
| | - Anna Lishchuk
- Department of Chemistry, University of Sheffield, Brook Hill, Sheffield S3 7HF, U.K
| | - Steven P Armes
- Department of Chemistry, University of Sheffield, Brook Hill, Sheffield S3 7HF, U.K
| | - Zhaogang Dong
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, #08-03 Innovis, 138634 Singapore
| | - Graham J Leggett
- Department of Chemistry, University of Sheffield, Brook Hill, Sheffield S3 7HF, U.K
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2
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Sun L, Zou M, Du L, Wang S, Ding R, Lu K, Li J, Zhou J. A mitochondria-targeted far-red AIE fluorescent probe for distinguishing between mitophagy and ferroptosis in cancer cells. Chem Commun (Camb) 2023; 59:12735-12738. [PMID: 37800994 DOI: 10.1039/d3cc03923d] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/07/2023]
Abstract
A mitochondria-targeted far-red fluorescent probe LY-1 with AIE character was formulated to track cell viscosity alterations with excellent sensitivity and selectivity, which was used to discriminate between mitophagy and ferroptosis in cancer cells. Probe LY-1 is expected to be an effective vehicle for the diagnosis of mitochondrial viscosity relevant diseases.
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Affiliation(s)
- Liyuan Sun
- School of Pharmacy, School of Anesthesiology, School of Nursing, Weifang Medical University, Weifang, 261053, China.
| | - Mengfei Zou
- School of Pharmacy, School of Anesthesiology, School of Nursing, Weifang Medical University, Weifang, 261053, China.
- Weifang People's Hospital, Weifang, 261041, China
| | - Longjie Du
- School of Pharmacy, School of Anesthesiology, School of Nursing, Weifang Medical University, Weifang, 261053, China.
| | - Shugang Wang
- Department of Rheumatology, Weifang Hospital of Traditional Chinese Medicine, Weifang, 261000, China
| | - Ru Ding
- School of Pharmacy, School of Anesthesiology, School of Nursing, Weifang Medical University, Weifang, 261053, China.
| | - Keliang Lu
- School of Pharmacy, School of Anesthesiology, School of Nursing, Weifang Medical University, Weifang, 261053, China.
| | - Jianchun Li
- School of Pharmacy, School of Anesthesiology, School of Nursing, Weifang Medical University, Weifang, 261053, China.
| | - Jin Zhou
- School of Pharmacy, School of Anesthesiology, School of Nursing, Weifang Medical University, Weifang, 261053, China.
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3
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Kapil K, Xu S, Lee I, Murata H, Kwon SJ, Dordick JS, Matyjaszewski K. Highly Sensitive Detection of Bacteria by Binder-Coupled Multifunctional Polymeric Dyes. Polymers (Basel) 2023; 15:2723. [PMID: 37376368 DOI: 10.3390/polym15122723] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 06/15/2023] [Accepted: 06/16/2023] [Indexed: 06/29/2023] Open
Abstract
Infectious diseases caused by pathogens are a health burden, but traditional pathogen identification methods are complex and time-consuming. In this work, we have developed well-defined, multifunctional copolymers with rhodamine B dye synthesized by atom transfer radical polymerization (ATRP) using fully oxygen-tolerant photoredox/copper dual catalysis. ATRP enabled the efficient synthesis of copolymers with multiple fluorescent dyes from a biotin-functionalized initiator. Biotinylated dye copolymers were conjugated to antibody (Ab) or cell-wall binding domain (CBD), resulting in a highly fluorescent polymeric dye-binder complex. We showed that the unique combination of multifunctional polymeric dyes and strain-specific Ab or CBD exhibited both enhanced fluorescence and target selectivity for bioimaging of Staphylococcus aureus by flow cytometry and confocal microscopy. The ATRP-derived polymeric dyes have the potential as biosensors for the detection of target DNA, protein, or bacteria, as well as bioimaging.
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Affiliation(s)
- Kriti Kapil
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, PA 15213, USA
| | - Shirley Xu
- Department of Chemical and Biological Engineering, Center for Biotechnology & Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
| | - Inseon Lee
- Department of Chemical and Biological Engineering, Center for Biotechnology & Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
| | - Hironobu Murata
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, PA 15213, USA
| | - Seok-Joon Kwon
- Department of Chemical and Biological Engineering, Center for Biotechnology & Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
| | - Jonathan S Dordick
- Department of Chemical and Biological Engineering, Center for Biotechnology & Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
| | - Krzysztof Matyjaszewski
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, PA 15213, USA
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4
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Novel Benzo[ a]phenoxazinium Chlorides Functionalized with Sulfonamide Groups as NIR Fluorescent Probes for Vacuole, Endoplasmic Reticulum, and Plasma Membrane Staining. Int J Mol Sci 2023; 24:ijms24033006. [PMID: 36769330 PMCID: PMC9918004 DOI: 10.3390/ijms24033006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 01/24/2023] [Accepted: 01/30/2023] [Indexed: 02/08/2023] Open
Abstract
The demand for new fluorophores for different biological target imaging is increasing. Benzo[a]phenoxazine derivatives are fluorochromophores that show promising optical properties for bioimaging, namely fluorescent emission at the NIR of the visible region, where biological samples have minimal fluorescence emission. In this study, six new benzo[a]phenoxazinium chlorides possessing sulfonamide groups at 5-amino-positions were synthesized and their optical and biological properties were tested. Compared with previous probes evaluated using fluorescence microscopy, using different S. cerevisiae strains, these probes, with sulfonamide groups, stained the vacuole membrane and/or the perinuclear membrane of the endoplasmic reticulum with great specificity, with some fluorochromophores capable of even staining the plasma membrane. Thus, the addition of a sulfonamide group to the benzo[a]phenoxazinium core increases their specificity and attributes for the fluorescent labeling of cell applications and fractions, highlighting them as quite valid alternatives to commercially available dyes.
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5
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Baron J, Bauernhofer L, Devenish SRA, Fiedler S, Ilsley A, Riedl S, Zweytick D, Glueck D, Pessentheiner A, Durand G, Keller S. FULL-MDS: Fluorescent Universal Lipid Labeling for Microfluidic Diffusional Sizing. Anal Chem 2022; 95:587-593. [PMID: 36574263 PMCID: PMC9850350 DOI: 10.1021/acs.analchem.2c03168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Microfluidic diffusional sizing (MDS) is a recent and powerful method for determining the hydrodynamic sizes and interactions of biomolecules and nanoparticles. A major benefit of MDS is that it can report the size of a fluorescently labeled target even in mixtures with complex, unpurified samples. However, a limitation of MDS is that the target itself has to be purified and covalently labeled with a fluorescent dye. Such covalent labeling is not suitable for crude extracts such as native nanodiscs directly obtained from cellular membranes. In this study, we introduce fluorescent universal lipid labeling for MDS (FULL-MDS) as a sparse, noncovalent labeling method for determining particle size. We first demonstrate that the inexpensive and well-characterized fluorophore, Nile blue, spontaneously partitions into lipid nanoparticles without disrupting their structure. We then highlight the key advantage of FULL-MDS by showing that it yields robust size information on lipid nanoparticles in crude cell extracts that are not amenable to other sizing methods. Furthermore, even for synthetic nanodiscs, FULL-MDS is faster, cheaper, and simpler than existing labeling schemes.
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Affiliation(s)
- Jasmin Baron
- Biophysics,
Institute of Molecular Biosciences (IMB), NAWI Graz, University of Graz, Humboldtstr. 50/III, Graz 8010, Austria,Field
of Excellence BioHealth, University of Graz, Graz 8010, Austria,BioTechMed-Graz, Graz 8010, Austria
| | - Lena Bauernhofer
- Biophysics,
Institute of Molecular Biosciences (IMB), NAWI Graz, University of Graz, Humboldtstr. 50/III, Graz 8010, Austria,Field
of Excellence BioHealth, University of Graz, Graz 8010, Austria,BioTechMed-Graz, Graz 8010, Austria
| | - Sean R. A. Devenish
- The
Paddocks Business Centre, Fluidic Analytics
Ltd., Unit A, Cherry Hinton Road, Cambridge CB1 8DH, United Kingdom
| | - Sebastian Fiedler
- The
Paddocks Business Centre, Fluidic Analytics
Ltd., Unit A, Cherry Hinton Road, Cambridge CB1 8DH, United Kingdom
| | - Alison Ilsley
- The
Paddocks Business Centre, Fluidic Analytics
Ltd., Unit A, Cherry Hinton Road, Cambridge CB1 8DH, United Kingdom
| | - Sabrina Riedl
- Biophysics,
Institute of Molecular Biosciences (IMB), NAWI Graz, University of Graz, Humboldtstr. 50/III, Graz 8010, Austria,Field
of Excellence BioHealth, University of Graz, Graz 8010, Austria,BioTechMed-Graz, Graz 8010, Austria
| | - Dagmar Zweytick
- Biophysics,
Institute of Molecular Biosciences (IMB), NAWI Graz, University of Graz, Humboldtstr. 50/III, Graz 8010, Austria,Field
of Excellence BioHealth, University of Graz, Graz 8010, Austria,BioTechMed-Graz, Graz 8010, Austria
| | - David Glueck
- Biophysics,
Institute of Molecular Biosciences (IMB), NAWI Graz, University of Graz, Humboldtstr. 50/III, Graz 8010, Austria,Field
of Excellence BioHealth, University of Graz, Graz 8010, Austria,BioTechMed-Graz, Graz 8010, Austria
| | - Ariane Pessentheiner
- Biophysics,
Institute of Molecular Biosciences (IMB), NAWI Graz, University of Graz, Humboldtstr. 50/III, Graz 8010, Austria,Field
of Excellence BioHealth, University of Graz, Graz 8010, Austria,BioTechMed-Graz, Graz 8010, Austria
| | - Grégory Durand
- Equipe
Synthèse et Systèmes Colloïdaux Bio-organiques,
Unité Propre de Recherche et d’Innovation, Avignon Université, 301 rue Baruch de Spinoza, Avignon 84916 CEDEX 9, France,CHEM2STAB, 301 rue Baruch de Spinoza, Avignon 84916 CEDEX 9, France
| | - Sandro Keller
- Biophysics,
Institute of Molecular Biosciences (IMB), NAWI Graz, University of Graz, Humboldtstr. 50/III, Graz 8010, Austria,Field
of Excellence BioHealth, University of Graz, Graz 8010, Austria,BioTechMed-Graz, Graz 8010, Austria,
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6
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Bielas R, Wróbel-Marek J, Kurczyńska EU, Neugebauer D. Rhodamine-Tagged Polymethacrylate Dyes as Alternative Tools for Analysis of Plant Cells. MATERIALS (BASEL, SWITZERLAND) 2022; 15:7720. [PMID: 36363313 PMCID: PMC9658429 DOI: 10.3390/ma15217720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 10/28/2022] [Accepted: 10/31/2022] [Indexed: 06/16/2023]
Abstract
A rhodamine B (RhB)-based initiator for atom transfer radical polymerization (ATRP) was synthesized and applied for preparation of poly(2-trimethylammoniumethyl methacrylate) (PChMA), poly(2-hydroxyethyl methacrylate) (PHEMA) and poly(2-trimethylsilyloxyethyl methacrylate) (PHEMATMS). Polymer fluorescence was confirmed by determination of quantum yield by comparative method with piroxicam as the standard exhibiting dependency of emission intensity on the polymer chain hydrophilicity and the kind of solvent. The RhB functionalized polymers were used for biological tests in plant materials except for RhB-PHEMATMS because of weak fluorescence. These two polymers slightly differed in cellular localization. RhB-PChMA was mostly observed in cell walls of root tissues and cotyledon epidermis. It was also observed in cytoplasm and cell organelles of root cap cells and rhizodermis, in contrast with cytoplasm of cotyledon epidermis. RhB-PHEMA was also present in apoplast. A strong signal in protoxylem cell walls and a weak signal in cell walls of rhizodermis and cortex were visible. Moreover, it was also present in cell walls of cotyledon epidermis. However, RhB-PHEMA was mostly observed in cytoplasm and cell organelles of all root tissues and epidermis of cotyledons. Both RhB-polymers did not cause cell death which means that they can be used in living plant material.
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Affiliation(s)
- Rafał Bielas
- Department of Physical Chemistry and Technology of Polymers, Faculty of Chemistry, Silesian University of Technology, Strzody 9, 44-100 Gliwice, Poland
| | - Justyna Wróbel-Marek
- Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia in Katowice, Jagiellońska 28, 40-032 Katowice, Poland
| | - Ewa U. Kurczyńska
- Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia in Katowice, Jagiellońska 28, 40-032 Katowice, Poland
| | - Dorota Neugebauer
- Department of Physical Chemistry and Technology of Polymers, Faculty of Chemistry, Silesian University of Technology, Strzody 9, 44-100 Gliwice, Poland
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7
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Proença PL, Carvalho LB, Campos EV, Fraceto LF. Fluorescent labeling as a strategy to evaluate uptake and transport of polymeric nanoparticles in plants. Adv Colloid Interface Sci 2022; 305:102695. [PMID: 35598536 DOI: 10.1016/j.cis.2022.102695] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 05/05/2022] [Accepted: 05/08/2022] [Indexed: 11/01/2022]
Abstract
The use of biodegradable nanopolymers in agriculture offers an excellent alternative for the efficient delivery of agrochemicals that promote plant protection and development. However, tracking of these systems inside plants requires complex probe tagging strategies. In addition to providing a basis for better understanding such nanostructures to optimize delivery system design, these probes allow monitoring the migration of nanoparticles through plant tissues, and determine accumulation sites. Thus, these probes are powerful tools that can be used to quantify and visualize nanoparticle accumulation in plant cells and tissues. This review is an overview of the methods involved in labeling nanocarriers, mainly based on polymeric matrices, for the delivery of nanoagrochemicals and the recent advances in this field.
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8
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Lee Y, Kim D, Park SB. Systematic Exploration of Furoindolizine‐Based Molecular Frameworks towards a Versatile Fluorescent Platform. Chemistry 2022; 28:e202200533. [DOI: 10.1002/chem.202200533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Indexed: 11/09/2022]
Affiliation(s)
- Youngjun Lee
- Department of Chemistry and Biochemistry University of California, San Diego 9500 Gilman Drive La Jolla CA 92093 USA
| | - Dahham Kim
- CRI Center for Chemical Proteomics, Department of Chemistry Seoul National University Seoul 08826 Korea
| | - Seung Bum Park
- CRI Center for Chemical Proteomics, Department of Chemistry Seoul National University Seoul 08826 Korea
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9
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Peserico A, Di Berardino C, Russo V, Capacchietti G, Di Giacinto O, Canciello A, Camerano Spelta Rapini C, Barboni B. Nanotechnology-Assisted Cell Tracking. NANOMATERIALS 2022; 12:nano12091414. [PMID: 35564123 PMCID: PMC9103829 DOI: 10.3390/nano12091414] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Revised: 04/13/2022] [Accepted: 04/14/2022] [Indexed: 02/06/2023]
Abstract
The usefulness of nanoparticles (NPs) in the diagnostic and/or therapeutic sector is derived from their aptitude for navigating intra- and extracellular barriers successfully and to be spatiotemporally targeted. In this context, the optimization of NP delivery platforms is technologically related to the exploitation of the mechanisms involved in the NP–cell interaction. This review provides a detailed overview of the available technologies focusing on cell–NP interaction/detection by describing their applications in the fields of cancer and regenerative medicine. Specifically, a literature survey has been performed to analyze the key nanocarrier-impacting elements, such as NP typology and functionalization, the ability to tune cell interaction mechanisms under in vitro and in vivo conditions by framing, and at the same time, the imaging devices supporting NP delivery assessment, and consideration of their specificity and sensitivity. Although the large amount of literature information on the designs and applications of cell membrane-coated NPs has reached the extent at which it could be considered a mature branch of nanomedicine ready to be translated to the clinic, the technology applied to the biomimetic functionalization strategy of the design of NPs for directing cell labelling and intracellular retention appears less advanced. These approaches, if properly scaled up, will present diverse biomedical applications and make a positive impact on human health.
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10
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Mishra S, Kumar P, Samanta SK. Atomic sheets of silver ferrite with universal microwave catalytic behavior. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 818:151735. [PMID: 34808155 DOI: 10.1016/j.scitotenv.2021.151735] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 11/03/2021] [Accepted: 11/13/2021] [Indexed: 06/13/2023]
Abstract
Prompt degradation of organic pollutants renders microwave (MW) catalysis technology extremely lucrative; ideal microwave catalysts are therefore being hunted with an unprecedented urgency. Ideal functional microwave catalyst should be highly crystalline, room temperature ferromagnetic (for magnetic retrieval), highly dielectric (for sufficient microwave absorption) apart from being structurally stable at high temperature. The potential of silver ferrite 2D sheets (2D AFO) synthesized using a novel microwave technique as a microwave catalyst for the degradation of a variety of organic dyes and antibiotics was investigated in this article. While organic dyes like malachite green (MG), brilliant green (BG) and nile blue A (NB) achieved 99.2%, 98.8% and 95.2%, respectively; antibiotic tetracycline hydrochloride (TCH) molecule resulted in 75.8% degradation efficiency. Total organic carbon (TOC) measurements yielded 76%, 59.1%, 49.1% and 47.6% of carbon content for MG, BG, NB and TCH, respectively. The reaction pathway via intermediates and subsequent degradation to CO2 and H2O is revealed by liquid chromatography-mass spectrometry (LCMS). Both superoxide and hydroxyl radicals are participating in the process, according to scavenger tests. The evolution of silver ferrite as a new 2D material and its demonstration as an ideal microwave catalyst will lead to a new beginning in catalysis science and technology.
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Affiliation(s)
- Sandhya Mishra
- Department of Chemical and Biochemical Engineering, Indian Institute of Technology Patna, Bihta, Patna, Bihar 801106, India
| | - Prashant Kumar
- Department of Physics, Indian Institute of Technology Patna, Bihta, Patna, Bihar 801106, India; Birck Nanotechnology Centre, Purdue University, West Lafayette, IN 47907, USA.
| | - Sujoy Kumar Samanta
- Department of Chemical and Biochemical Engineering, Indian Institute of Technology Patna, Bihta, Patna, Bihar 801106, India.
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11
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Lishchuk A, Csányi E, Darroch B, Wilson C, Nabok A, Leggett GJ. Active control of strong plasmon-exciton coupling in biomimetic pigment-polymer antenna complexes grown by surface-initiated polymerisation from gold nanostructures. Chem Sci 2022; 13:2405-2417. [PMID: 35310503 PMCID: PMC8864694 DOI: 10.1039/d1sc05842h] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 02/03/2022] [Indexed: 11/24/2022] Open
Abstract
Plexcitonic antenna complexes, inspired by photosynthetic light-harvesting complexes, are formed by attachment of chlorophylls (Chl) to poly(cysteine methacrylate) (PCysMA) scaffolds grown by atom-transfer radical polymerisation from gold nanostructure arrays. In these pigment–polymer antenna complexes, localised surface plasmon resonances on gold nanostructures are strongly coupled to Chl excitons, yielding hybrid light–matter states (plexcitons) that are manifested in splitting of the plasmon band. Modelling of the extinction spectra of these systems using a simple coupled oscillator model indicates that their coupling energies are up to twice as large as those measured for LHCs from plants and bacteria. Coupling energies are correlated with the exciton density in the grafted polymer layer, consistent with the collective nature of strong plasmon–exciton coupling. Steric hindrance in fully-dense PCysMA brushes limits binding of bulky chlorophylls, but the chlorophyll concentration can be increased to ∼2 M, exceeding that in biological light-harvesting complexes, by controlling the grafting density and polymerisation time. Moreover, synthetic plexcitonic antenna complexes display pH- and temperature-responsiveness, facilitating active control of plasmon–exciton coupling. Because of the wide range of compatible polymer chemistries and the mild reaction conditions, plexcitonic antenna complexes may offer a versatile route to programmable molecular photonic materials. Excitons in pigment–polymer antenna complexes formed by attachment of chlorophyll to surface grafted polymers are coupled strongly to plasmon modes, with coupling energies twice those for biological light-harvesting complexes and active control of plasmon–exciton coupling.![]()
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Affiliation(s)
- Anna Lishchuk
- Department of Chemistry, University of Sheffield Brook Hill Sheffield S3 7HF UK
| | - Evelin Csányi
- Department of Chemistry, University of Sheffield Brook Hill Sheffield S3 7HF UK
| | - Brice Darroch
- Department of Chemistry, University of Sheffield Brook Hill Sheffield S3 7HF UK
| | - Chloe Wilson
- Department of Chemistry, University of Sheffield Brook Hill Sheffield S3 7HF UK
| | - Alexei Nabok
- Materials and Engineering Research Institute, Sheffield Hallam University City Campus Sheffield S1 1WB UK
| | - Graham J Leggett
- Department of Chemistry, University of Sheffield Brook Hill Sheffield S3 7HF UK
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12
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Yu W, Kim Y, Jang Y, Lee SM. Eu(III)-Chelated Polymeric Hybrid Nanoplatform for Luminescence Resonance Energy Transfer (LRET)-Based Real-Time Monitoring of Organic Cargo Release. ACS Macro Lett 2021; 10:1602-1608. [PMID: 35549142 DOI: 10.1021/acsmacrolett.1c00570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The real-time monitoring of specific guest release from nanoscale assemblies has been of great interest for the potential application in nanomedicine. Herein, we present a facile one-pot strategy to achieve a metal-chelated nanoscale platform that enables a highly efficient luminescence resonance energy transfer (LRET) for the monitoring of hydrophobic cargo release. To this end, Eu(III) as a lanthanide luminophore was employed to induce the metal-mediated self-assembly of chelating block copolymers in the presence of fluorescent Nile Blue (NB) as an organic cargo, which can then produce a nanoscale assembly containing a hybrid polyionic complex (HPIC) of Eu(III) and NB as LRET pairs. Exploiting this Eu(III)-chelated, NB-incorporated polymeric assembly as a luminescent platform that allows for the intermolecular distance-sensitive LRET, we further demonstrate that the facile monitoring of NB release from the carriers was made possible upon the addition of serum albumin as a protein reservoir for the released hydrophobic guest molecules.
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Affiliation(s)
- Wonjeong Yu
- Department of Chemistry, The Catholic University of Korea, Bucheon, Gyeonggi-do 14662, Korea
| | - Yeojin Kim
- Department of Chemistry, The Catholic University of Korea, Bucheon, Gyeonggi-do 14662, Korea
| | - Yoojin Jang
- Department of Chemistry, The Catholic University of Korea, Bucheon, Gyeonggi-do 14662, Korea
| | - Sang-Min Lee
- Department of Chemistry, The Catholic University of Korea, Bucheon, Gyeonggi-do 14662, Korea
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13
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Mishra S, Kumari S, Kumar P, Samanta SK. Microwave synthesized strontium hexaferrite 2D sheets as versatile and efficient microwave catalysts for degradation of organic dyes and antibiotics. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 790:147853. [PMID: 34087737 DOI: 10.1016/j.scitotenv.2021.147853] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 04/26/2021] [Accepted: 05/15/2021] [Indexed: 06/12/2023]
Abstract
Microwave catalysis is extremely lucrative due to prompt mineralization and superior efficiency. Ideal microwave catalysts should possess crystalline nature, large surface area, room temperature ferromagnetic, high dielectric properties apart from structural stability at elevated temperature. In the present article, the candidature of microwave synthesized strontium hexaferrite 2D sheets (2D SFO) has been explored as microwave catalysts for the degradation of a host of organic dyes and antibiotics. Malachite green (MG) and nile blue A (NB) in particular exhibited 99.8% and 97.6% degradation, respectively. Degradation reaction is established to follow pseudo-second-order kinetics. Total organic carbon (TOC) measurements hint at 52% and 60% mineralization for MG and NB, respectively. Liquid chromatography-mass spectroscopy (LCMS) measurements indicate the reaction pathways via intermediates and eventual mineralization to CO2 and H2O. Mott-Schottky measurements along with scavenger tests hint that both hydroxyl and superoxide radicals participate in the reaction. Having superior efficiency apart from the versatile nature of the 2D SFO microwave catalyst, the present research will guide to the emergence of microwave catalysis as a new technology.
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Affiliation(s)
- Sandhya Mishra
- Department of Chemical and Biochemical Engineering, Indian Institute of Technology Patna, Bihta, Patna, Bihar 801106, India
| | - Sushma Kumari
- Department of Chemical and Biochemical Engineering, Indian Institute of Technology Patna, Bihta, Patna, Bihar 801106, India
| | - Prashant Kumar
- Department of Physics, Indian Institute of Technology Patna, Bihta, Patna, Bihar 801106, India; Birck Nanotechnology Centre, Purdue University, West Lafayette, IN 47907, USA.
| | - Sujoy Kumar Samanta
- Department of Chemical and Biochemical Engineering, Indian Institute of Technology Patna, Bihta, Patna, Bihar 801106, India.
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14
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Bao L, Liu K, Chen Y, Yang G. Construction of a Rational-Designed Multifunctional Platform Based on a Fluorescence Resonance Energy Transfer Process for Simultaneous Detection of pH and Endogenous Peroxynitrite. Anal Chem 2021; 93:9064-9073. [PMID: 34164977 DOI: 10.1021/acs.analchem.1c00264] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Peroxynitrite (ONOO-), a kind of reactive oxygen species, plays an indispensable role in many physiological processes. The stability and reactivity of ONOO- are significantly affected by the pH of the environment. A novel fluorescent probe RN-NA that can simultaneously respond to ONOO- and pH was proposed and constructed based on a rational-designed multifunctional fluorescence resonance energy transfer (FRET) platform. The RN-NA probe exhibited a remarkably different fluorescence change in response to ONOO- and pH. The fluorescence signals at 525 and 710 nm increased about 4-fold with a pH change from 8.0 to 3.0. The changes in fluorescence at 525 nm are mainly attributed to photo-induced electron transfer, and the fluorescence enhancement at 710 nm was mainly due to acid-induced open-closed circulation. In the presence of ONOO-, the fluorescence at 525 nm increased 5-fold, while the fluorescence at 710 nm was almost completely diminished. Up to 70-fold fluorescence enhancement was observed in the ratiometric channel F525/F710. In the cell imaging experiment, the intracellular pH was adjusted using H+/K+ ionophore and nigericin, and the endogenous ONOO- was generated by lipopolysaccharide (LPS) and γ-interferon (IFN-γ). The RN-NA probe can respond to cellular pH and endogenous ONOO- with remarkable fluorescence changes in both red/green and ratiometric channels.
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Affiliation(s)
- Luo Bao
- State Key Laboratory of Biobased Material and Green Papermaking, Key Laboratory of Pulp & Paper Science and Technology of Shandong Province/Ministry of Education, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250353, China
| | - Keyin Liu
- State Key Laboratory of Biobased Material and Green Papermaking, Key Laboratory of Pulp & Paper Science and Technology of Shandong Province/Ministry of Education, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250353, China
| | - Yunling Chen
- State Key Laboratory of Biobased Material and Green Papermaking, Key Laboratory of Pulp & Paper Science and Technology of Shandong Province/Ministry of Education, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250353, China
| | - Guihua Yang
- State Key Laboratory of Biobased Material and Green Papermaking, Key Laboratory of Pulp & Paper Science and Technology of Shandong Province/Ministry of Education, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250353, China
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15
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Zhang X, Contini C, Constantinou AP, Doutch JJ, Georgiou TK. How does the hydrophobic content of methacrylate
ABA
triblock copolymers affect polymersome formation? JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1002/pol.20210371] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Xinmo Zhang
- Department of Materials Royal School of Mines Exhibition Road London SW7 2AZ UK
| | - Claudia Contini
- Department of Chemistry, Molecular Sciences Research Hub Imperial College London 82 Wood Lane London W12 0BZ UK
| | - Anna P. Constantinou
- Department of Chemistry, Molecular Sciences Research Hub Imperial College London 82 Wood Lane London W12 0BZ UK
| | - James J. Doutch
- ISIS Neutron and Muon Source, STFC Rutherford Appleton Laboratory Didcot UK
| | - Theoni K. Georgiou
- Department of Materials Royal School of Mines Exhibition Road London SW7 2AZ UK
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16
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Roy N, Bomzan P, Roy D, Ghosh B, Roy MN. Exploring β-CD grafted GO nanocomposites with an encapsulated fluorescent dye duly optimized by molecular docking for better applications. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.115481] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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17
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Bou S, Klymchenko AS, Collot M. Fluorescent labeling of biocompatible block copolymers: synthetic strategies and applications in bioimaging. MATERIALS ADVANCES 2021; 2:3213-3233. [PMID: 34124681 PMCID: PMC8142673 DOI: 10.1039/d1ma00110h] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 04/04/2021] [Indexed: 05/27/2023]
Abstract
Among biocompatible materials, block copolymers (BCPs) possess several advantages due to the control of their chemistry and the possibility of combining various blocks with defined properties. Consequently, BCPs drew considerable attention as biocompatible materials in the fields of drug delivery, medicine and bioimaging. Fluorescent labeling of BCPs quickly appeared to be a method of choice to image and track these materials in order to better understand the nature of their interactions with biological media. However, incorporating fluorescent markers (FM) into BCPs can appear tricky; we thus intend to help chemists in this endeavor by reviewing recent advances made in the last 10 years. With the choice of the FM being of prior importance, we first reviewed their photophysical properties and functionalities for optimal labeling and imaging. In the second part the different chemical approaches that have been used in the literature to fluorescently label BCPs have been reviewed. We also report and discuss relevant applications of fluorescent BCPs in bioimaging.
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Affiliation(s)
- Sophie Bou
- Laboratoire de Bioimagerie et Pathologies, UMR 7021, CNRS/Université de Strasbourg 74 route du Rhin 67401 Illkirch-Graffenstaden France
| | - Andrey S Klymchenko
- Laboratoire de Bioimagerie et Pathologies, UMR 7021, CNRS/Université de Strasbourg 74 route du Rhin 67401 Illkirch-Graffenstaden France
| | - Mayeul Collot
- Laboratoire de Bioimagerie et Pathologies, UMR 7021, CNRS/Université de Strasbourg 74 route du Rhin 67401 Illkirch-Graffenstaden France
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18
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19
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Gao YG, Huangfu SY, Patil S, Tang Q, Sun W, Li Y, Lu ZL, Qian A. [12]aneN 3-based multifunctional compounds as fluorescent probes and nucleic acids delivering agents. Drug Deliv 2020; 27:66-80. [PMID: 31858838 PMCID: PMC6968532 DOI: 10.1080/10717544.2019.1704943] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Revised: 12/03/2019] [Accepted: 12/11/2019] [Indexed: 12/31/2022] Open
Abstract
A series of multifunctional compounds (MFCs) 1a-1e based on 1,8-naphthalimide and [12]aneN3 building blocks were designed and synthesized. They were used as not only fluorescent probes for recognition of Cu2+ ions but also as non-viral gene vectors for DNA and RNA delivery. Furthermore, their complexes with Cu2+ (1-Cu) could also selectively stain lysosome in HeLa cells. In order to achieve high performance multifunctional materials, structure-performance relationship of MFCs 1a-1e was studied. It was found that MFCs 1a-1e exhibited highly selective fluorescence turn-off for Cu2+, without interference by other metal ions in aqueous solution. The fluorescence emission of 1a-1e was quenched by a factor of 10-fold, 47-fold, 6-fold, 64-fold, and 15-fold respectively in the presence of Cu2+ ions. Due to high sensitivity, good water solubility, and low cytotoxicity, MFCs 1a-1d were successfully applied in the recognition of Cu2+ and selectively staining lysosome in HeLa cells. Most importantly, MFCs 1a and 1b had excellent HeLa cell selectivity in RNA delivery, and their performances were far better than lipofectamine 2000 and 25 kDa PEI.
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Affiliation(s)
- Yong-Guang Gao
- Lab for Bone Metabolism, Key Lab for Space Biosciences and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi’an, Shaanxi, China
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, China
| | - Shu-Yuan Huangfu
- Lab for Bone Metabolism, Key Lab for Space Biosciences and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi’an, Shaanxi, China
| | - Suryaji Patil
- Lab for Bone Metabolism, Key Lab for Space Biosciences and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi’an, Shaanxi, China
| | - Quan Tang
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, China
| | - Wan Sun
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, China
| | - Yu Li
- Lab for Bone Metabolism, Key Lab for Space Biosciences and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi’an, Shaanxi, China
| | - Zhong-Lin Lu
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, China
| | - Airong Qian
- Lab for Bone Metabolism, Key Lab for Space Biosciences and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi’an, Shaanxi, China
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20
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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: 174] [Impact Index Per Article: 43.5] [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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21
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Yamada H, Matsumoto N, Komaki T, Konishi H, Kimura Y, Son A, Imai H, Matsuda T, Aoyama Y, Kondo T. Photoacoustic in vivo 3D imaging of tumor using a highly tumor-targeting probe under high-threshold conditions. Sci Rep 2020; 10:19363. [PMID: 33168875 PMCID: PMC7652936 DOI: 10.1038/s41598-020-76281-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 10/19/2020] [Indexed: 12/15/2022] Open
Abstract
Three-dimensional (3D) representation of a tumor with respect to its size, shape, location, and boundaries is still a challenge in photoacoustic (PA) imaging using artificial contrast agents as probes. We carried out PA imaging of tumors in mice using 800RS-PMPC, which was obtained by coupling of 800RS, a near-infrared cyanine dye, with PMPC, a highly selective tumor-targeting methacrylate polymer having phosphorylcholine side chains, as a probe. The conjugate 800RS-PMPC forms compact nanoparticles (dDLS = 14.3 nm), retains the biocompatibility of the parent polymer (PMPC) and exhibits unprecedented PA performance. When applied to mice bearing a 6 × 3 × 3 mm3 tumor buried 6 mm beneath the skin, the probe 800RS-PMPC selectively accumulates in the tumor and emits PA signals that are strong enough to be unambiguously distinguished from noise signals of endogenous blood/hemoglobin. The PA image thus obtained under high-threshold conditions allows 3D characterization of the tumor in terms of its size, shape, location, and boundaries.
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Affiliation(s)
- Hisatsugu Yamada
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto, 615-8510, Japan.
- Graduate School of Technology, Industrial and Social Sciences, Tokushima University, Tokushima, Japan.
| | - Natsuki Matsumoto
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Takanori Komaki
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Hiroaki Konishi
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Yu Kimura
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Aoi Son
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Hirohiko Imai
- Department of Systems Science, Graduate School of Informatics, Kyoto University, Yoshida-honmachi, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Tetsuya Matsuda
- Department of Systems Science, Graduate School of Informatics, Kyoto University, Yoshida-honmachi, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Yasuhiro Aoyama
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto, 615-8510, Japan.
| | - Teruyuki Kondo
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto, 615-8510, Japan.
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22
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Cao C, Chen F, Garvey CJ, Stenzel MH. Drug-Directed Morphology Changes in Polymerization-Induced Self-Assembly (PISA) Influence the Biological Behavior of Nanoparticles. ACS APPLIED MATERIALS & INTERFACES 2020; 12:30221-30233. [PMID: 32515935 DOI: 10.1021/acsami.0c09054] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The effect of the hydrophobic block length on the morphologies of polymerization-induced self-assembled (PISA) nanoparticles is well understood. However, the influence of drug loading on the phase morphology of the nanoparticles during the PISA process, and the resulting biological function of PISA nanoparticles, has barely been investigated. In this work, we show that the addition of a drug, curcumin, during the PISA process shifts the phase diagram toward different morphologies. The PISA system was based on hydrophilic poly(2-(methacryloyloxy)ethylphosphorylcholine) (PMPC), which was chain extended with hydrophobic methyl methacrylate (MMA) in various concentrations of curcumin. According to transmission electron microscopy, the presence of curcumin led to the transition of, for example, worms to polymersome and micelles to worms analysis. To understand the interaction between polymer particles and drug, small-angle X-ray scattering (SAXS), small-angle neutron scattering (SANS), and fluorescence lifetime measurements were carried out. These measurements show that curcumin is predominantly located in the core in the case of micelles and worms while it is found in the shell of polymersomes. The change in morphology influences the cellular uptake by MCF-7 cells and the movement of the particles in multicellular cancer spheroids (3D model). With the increasing amount of drug, the cellular uptake of micelles and worms was enhanced with the increasing grafting density of MPC chains, which contrasts the decreasing cellular uptake in the higher drug-loaded polymersomes due to the lower shell hydration.
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Affiliation(s)
- Cheng Cao
- Centre for Advanced Macromolecular Design, School of Chemistry, The University of New South Wales, Sydney 2052, Australia
- Australia Nuclear Science and Technology Organisation, Lucas Heights 2234, Australia
| | - Fan Chen
- Centre for Advanced Macromolecular Design, School of Chemistry, The University of New South Wales, Sydney 2052, Australia
| | - Christopher J Garvey
- Australia Nuclear Science and Technology Organisation, Lucas Heights 2234, Australia
- Lund Institute for Advanced Neutron and X-ray Scattering, Lund 22100, Sweden
- Biofilm-Research Center for Biointerfaces and Biomedical Science Department, Faculty of Health and Society, Malmö University, Malmö 20506, Sweden
| | - Martina H Stenzel
- Centre for Advanced Macromolecular Design, School of Chemistry, The University of New South Wales, Sydney 2052, Australia
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23
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Yuan ZH, Zhang XP, Guan J, Chen LL, Li SK, Liu M, Qin YJ, Yang YS, Zhu HL. Introducing ortho-methoxyl group as a fluorescence-enhancing and bathochromic-shift bi-functional strategy for typical cysteine sensors. Talanta 2020; 219:121217. [PMID: 32887118 DOI: 10.1016/j.talanta.2020.121217] [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] [Received: 10/24/2019] [Revised: 05/22/2020] [Accepted: 05/24/2020] [Indexed: 11/29/2022]
Abstract
A practical strategy of introducing ortho-methoxyl group was explored to achieve the fluorescence-enhancing and bathochromic-shift bi-functional optimization. It was tested in the Cys sensing ISOPH-X series, thus the successful case, ISOPH-2, was obtained. It realized the optimization in a simple and compatible way. The corresponding strategy was basically established during the confirmation of checkpoints including applicable steadiness (over 24 h), wide pH range (7.0-9.0), rapid response (20 min), good biocompatibility, high sensitivity (LOD = 0.072 nm), high selectivity and biological monitoring of Cys in living cells as well as C. elegans. In this work, the o-methoxyl introduction strategy led to a 15 nm red shift and a near 4-fold fluorescence enhancement. This strategy could be combined with the double bond-introducing approach. Compared with reported strategies, by breaking the dilemma between red shift and strong fluorescent intensity, this strategy might offer beneficial information for exploiting better sensors with more fluorophores and mechanisms for their targets.
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Affiliation(s)
- Zeng-Hui Yuan
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, 210023, China
| | - Xu-Ping Zhang
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, 210023, China
| | - Jing Guan
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, 210023, China
| | - Li-Li Chen
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, 210023, China
| | - Shu-Kai Li
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, 210023, China
| | - Ming Liu
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, 210023, China
| | - Ya-Juan Qin
- Department of Medicinal Chemistry, School of Pharmacy, Nanjing Medical University, Nanjing, 211166, China.
| | - Yu-Shun Yang
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, 210023, China.
| | - Hai-Liang Zhu
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, 210023, China.
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24
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Yin J, Jiao Y, Peng X, He H, Duan C. Ionic fluorescent sensor targeting receptor tyrosine kinases for biosystems imaging and application in flow cytometry. Biosens Bioelectron 2020; 153:112026. [PMID: 31989936 DOI: 10.1016/j.bios.2020.112026] [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] [Received: 09/28/2019] [Revised: 01/06/2020] [Accepted: 01/13/2020] [Indexed: 01/09/2023]
Abstract
Fluorescent imaging of receptor tyrosine kinases in living biosystems is an important means for the early diagnosis of cancer, herein an ionic fluorescent sensor (SNB) composed of targeting unit (sunitinib) and nile blue fluorophore linked via long flexible chain has been designed and evaluated. The SNB sensor exhibits distinct fluorescence responses to receptor tyrosine kinases derived from unfolding strategy and targeting ability, which were evaluated through 2D NMR analyses, optical studies, kinase activity assays. The SNB sensor has excellent membrane fluorescent imaging by electrostatic adsorption and can selectively insert into receptor tyrosine kinases domain pocket on the membrane of cancer cell lines. The SNB sensor has been successfully applied in flow cytometry for cell sorting and fluorescence imaging with tumor mouse model in vivo. The SNB senor may help transition the technology into a widely suitable tool for flow cytometry, imaging with confocal microscopes, whole animal imaging and possibly facilitating early diagnoses and treatment of cancer.
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Affiliation(s)
- Jiqiu Yin
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116024, China; College of Medical Laboratory, Dalian Medical University, Dalian, 116044, China
| | - Yang Jiao
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116024, China.
| | - Xiaojun Peng
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116024, China
| | - Haiyang He
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116024, China
| | - Chunying Duan
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116024, China.
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25
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Yao C, Li Y, Wang Z, Song C, Hu X, Liu S. Cytosolic NQO1 Enzyme-Activated Near-Infrared Fluorescence Imaging and Photodynamic Therapy with Polymeric Vesicles. ACS NANO 2020; 14:1919-1935. [PMID: 31935063 DOI: 10.1021/acsnano.9b08285] [Citation(s) in RCA: 88] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The utilization of enzymes as a triggering module could endow responsive polymeric nanostructures with selectivity in a site-specific manner. On the basis of the fact that endogenous NAD(P)H:quinone oxidoreductase isozyme 1 (NQO1) is overexpressed in many types of tumors, we report on the fabrication of photosensitizer-conjugated polymeric vesicles, exhibiting synergistic NQO1-triggered turn-on of both near-infrared (NIR) fluorescence emission and a photodynamic therapy (PDT) module. For vesicles self-assembled from amphiphilic block copolymers containing quinone trimethyl lock-capped self-immolative side linkages and quinone-bridged photosensitizers (coumarin and Nile blue) in the hydrophobic block, both fluorescence emission and PDT potency are initially in the "off" state due to "double quenching" effects, that is, dye-aggregation-caused quenching and quinone-rendered PET (photoinduced electron transfer) quenching. After internalization into NQO1-positive vesicles, the cytosolic NQO1 enzyme triggers self-immolative cleavage of quinone linkages and fluorogenic release of conjugated photosensitizers, leading to NIR fluorescence emission turn-on and activated PDT. This process is accompanied by the transformation of vesicles into cross-linked micelles with hydrophilic cores and smaller sizes and triggered dual drug release, which could be directly monitored by enhanced magnetic resonance (MR) imaging for vesicles conjugated with a DOTA(Gd) complex in the hydrophobic bilayer. We further demonstrate that the above strategy could be successfully applied for activated NIR fluorescence imaging and tissue-specific PDT under both cellular and in vivo conditions.
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Affiliation(s)
- Chenzhi Yao
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, Hefei National Laboratory for Physical Sciences at the Microscale , University of Science and Technology of China , Hefei , Anhui 230026 , China
| | - Yamin Li
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, Hefei National Laboratory for Physical Sciences at the Microscale , University of Science and Technology of China , Hefei , Anhui 230026 , China
| | - Zhixiong Wang
- MOE Key Laboratory of Laser Life Science, Institute of Laser Life Science, College of Biophotonics , South China Normal University , Guangzhou 510631 , China
| | - Chengzhou Song
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, Hefei National Laboratory for Physical Sciences at the Microscale , University of Science and Technology of China , Hefei , Anhui 230026 , China
| | - Xianglong Hu
- MOE Key Laboratory of Laser Life Science, Institute of Laser Life Science, College of Biophotonics , South China Normal University , Guangzhou 510631 , China
| | - Shiyong Liu
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, Hefei National Laboratory for Physical Sciences at the Microscale , University of Science and Technology of China , Hefei , Anhui 230026 , China
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26
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Smyth P, Gibson TJ, Irvine G, Black G, Lavery D, Semsarilar M, Scott CJ, Themistou E. pH-Responsive benzaldehyde-functionalized PEG-based polymeric nanoparticles for drug delivery: Effect of preparation method on morphology, dye encapsulation and attachment. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2019.109471] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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27
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Duong HD, Shin Y, Rhee JI. Development of novel optical pH sensors based on coumarin 6 and nile blue A encapsulated in resin particles and specific support materials. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 107:110323. [DOI: 10.1016/j.msec.2019.110323] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 09/02/2019] [Accepted: 10/14/2019] [Indexed: 10/25/2022]
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28
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Jiang X, Liu Z, Yang Y, Li H, Qi X, Ren WX, Deng M, Lü M, Wu J, Liang S. A mitochondria-targeted two-photon fluorescent probe for sensing and imaging pH changes in living cells. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 224:117435. [PMID: 31400745 DOI: 10.1016/j.saa.2019.117435] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2019] [Revised: 07/22/2019] [Accepted: 07/27/2019] [Indexed: 06/10/2023]
Abstract
A novel two-photon pH probe, 3-benzimidazole-7-hydroxycoumarin (BHC), was designed and synthesized based on the structures of hydroxycoumarin and benzimidazole. BHC showed good linearity in the pH ranges of 3.30-5.40 (pKa = 4.20) and 6.50-8.30 (pKa = 7.20) at a maximum emission wavelength of 480 nm. BHC in acidic and alkaline media could be distinguished by an obvious spectral shift of the maximum absorption wavelength from 390 nm to 420 nm. In addition, BHC was well localized to mitochondria and successfully applied to one-photon and two-photon imaging of pH changes in the mitochondria of HeLa cells. The findings presented herein suggest that BHC can serve as an excellent fluorescent probe for selectively sensing mitochondrial pH changes with remarkable photostability and low cytotoxicity.
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Affiliation(s)
- Xueqin Jiang
- The Pharmacy School of Southwest Medical University, Luzhou, China; The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Zengjin Liu
- The Affiliated Hospital of Traditional Chinese Medicine of Southwest Medical University, Luzhou, China
| | - Youzhe Yang
- The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Hao Li
- The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Xiaoyi Qi
- The Pharmacy School of Southwest Medical University, Luzhou, China; Nuclear Medicine and Molecular Imaging Key Laboratory of Sichuan Province, Luzhou, China
| | - Wen Xiu Ren
- The Affiliated Hospital of Southwest Medical University, Luzhou, China; Nuclear Medicine and Molecular Imaging Key Laboratory of Sichuan Province, Luzhou, China
| | - Mingming Deng
- The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Muhan Lü
- The Affiliated Hospital of Southwest Medical University, Luzhou, China.
| | - Jianming Wu
- The Pharmacy School of Southwest Medical University, Luzhou, China.
| | - Sicheng Liang
- The Affiliated Hospital of Southwest Medical University, Luzhou, China; The Pharmacy School of Southwest Medical University, Luzhou, China; Nuclear Medicine and Molecular Imaging Key Laboratory of Sichuan Province, Luzhou, China.
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29
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Shi Z, Han X, Hu W, Bai H, Peng B, Ji L, Fan Q, Li L, Huang W. Bioapplications of small molecule Aza-BODIPY: from rational structural design to in vivo investigations. Chem Soc Rev 2020; 49:7533-7567. [DOI: 10.1039/d0cs00234h] [Citation(s) in RCA: 143] [Impact Index Per Article: 35.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This review highlights the empirical design guidelines and photophysical property manipulation of Aza-BODIPY dyes and the latest advances in their bioapplications.
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Affiliation(s)
- Zhenxiong Shi
- Frontiers Science Center for Flexible Electronics
- Xi’an Institute of Flexible Electronics (IFE) and Xi’an Institute of Biomedical Materials & Engineering
- Northwestern Polytechnical University
- Xi’an 710072
- P. R. China
| | - Xu Han
- Frontiers Science Center for Flexible Electronics
- Xi’an Institute of Flexible Electronics (IFE) and Xi’an Institute of Biomedical Materials & Engineering
- Northwestern Polytechnical University
- Xi’an 710072
- P. R. China
| | - Wenbo Hu
- Frontiers Science Center for Flexible Electronics
- Xi’an Institute of Flexible Electronics (IFE) and Xi’an Institute of Biomedical Materials & Engineering
- Northwestern Polytechnical University
- Xi’an 710072
- P. R. China
| | - Hua Bai
- Frontiers Science Center for Flexible Electronics
- Xi’an Institute of Flexible Electronics (IFE) and Xi’an Institute of Biomedical Materials & Engineering
- Northwestern Polytechnical University
- Xi’an 710072
- P. R. China
| | - Bo Peng
- Frontiers Science Center for Flexible Electronics
- Xi’an Institute of Flexible Electronics (IFE) and Xi’an Institute of Biomedical Materials & Engineering
- Northwestern Polytechnical University
- Xi’an 710072
- P. R. China
| | - Lei Ji
- Frontiers Science Center for Flexible Electronics
- Xi’an Institute of Flexible Electronics (IFE) and Xi’an Institute of Biomedical Materials & Engineering
- Northwestern Polytechnical University
- Xi’an 710072
- P. R. China
| | - Quli Fan
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM)
- Nanjing University of Posts & Telecommunications
- Nanjing 210023
- P. R. China
| | - Lin Li
- Frontiers Science Center for Flexible Electronics
- Xi’an Institute of Flexible Electronics (IFE) and Xi’an Institute of Biomedical Materials & Engineering
- Northwestern Polytechnical University
- Xi’an 710072
- P. R. China
| | - Wei Huang
- Frontiers Science Center for Flexible Electronics
- Xi’an Institute of Flexible Electronics (IFE) and Xi’an Institute of Biomedical Materials & Engineering
- Northwestern Polytechnical University
- Xi’an 710072
- P. R. China
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30
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Ravichandiran P, Subramaniyan SA, Bella AP, Johnson PM, Kim AR, Shim KS, Yoo DJ. Simple Fluorescence Turn-On Chemosensor for Selective Detection of Ba 2+ Ion and Its Live Cell Imaging. Anal Chem 2019; 91:10095-10101. [PMID: 31248251 DOI: 10.1021/acs.analchem.9b02057] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
A phenoxazine-based fluorescence chemosensor 4PB [(4-(tert-butyl)-N-(4-((4-((5-oxo-5H-benzo[a]phenoxazin-6-yl)amino)phenyl)sulfonyl)phenyl)benzamide)] was designed and synthesized by a simple synthetic methods. The 4PB fluorescence chemosensor selectively detects Ba2+ in the existence of other alkaline metal ions. In addition, 4PB showed high selectivity and sensitivity for Ba2+ detection. The detection limit of 4PB was 0.282 μM and the binding constant was 1.0 × 106 M-1 in CH3CN/H2O (97.5:2.5 v/v, HEPES = 1.25 mM, pH 7.3) medium. This chemosensor functioned through the intramolecular charge transfer (ICT) mechanism, which was further confirmed by DFT studies. Live cell imaging in MCF-7 cells confirmed the cell permeability of 4PB and its capability for specific detection of Ba2+ in living cells.
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Affiliation(s)
- Palanisamy Ravichandiran
- Department of Life Science, Department of Energy Storage/Conversion Engineering of Graduate School, and Hydrogen and Fuel Cell Research Center , Chonbuk National University , Jeollabuk-do 54896 , Republic of Korea
| | - Sivakumar Allur Subramaniyan
- Department of Animal Biotechnology, College of Agriculture and Life Sciences , Chonbuk National University , Jeollabuk-do 54896 , Republic of Korea
| | - Antony Paulraj Bella
- PG and Research Department of Chemistry , Bishop Heber College , Tiruchirappalli - 620017 , Tamil Nadu India
| | - Princy Merlin Johnson
- PG and Research Department of Chemistry , Bishop Heber College , Tiruchirappalli - 620017 , Tamil Nadu India
| | - Ae Rhan Kim
- R&D Center for CANUTECH, Business Incubation Center, Department of Bioenvironmental Chemistry , Chonbuk National University , Jeollabuk-do 54896 , Republic of Korea
| | - Kwan Seob Shim
- Department of Animal Biotechnology, College of Agriculture and Life Sciences , Chonbuk National University , Jeollabuk-do 54896 , Republic of Korea
| | - Dong Jin Yoo
- Department of Life Science, Department of Energy Storage/Conversion Engineering of Graduate School, and Hydrogen and Fuel Cell Research Center , Chonbuk National University , Jeollabuk-do 54896 , Republic of Korea
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31
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Douverne M, Ning Y, Tatani A, Meldrum FC, Armes SP. How Many Phosphoric Acid Units Are Required to Ensure Uniform Occlusion of Sterically Stabilized Nanoparticles within Calcite? Angew Chem Int Ed Engl 2019; 58:8692-8697. [DOI: 10.1002/anie.201901307] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 04/12/2019] [Indexed: 12/14/2022]
Affiliation(s)
- Marcel Douverne
- Department of ChemistryUniversity of Sheffield Brook Hill Sheffield, South Yorkshire S3 7HF UK
- Faculty of Chemistry, Pharmaceutical Sciences and GeosciencesJohannes Gutenberg-University Mainz Duesbergweg 10–14 55128 Mainz Germany
| | - Yin Ning
- Department of ChemistryUniversity of Sheffield Brook Hill Sheffield, South Yorkshire S3 7HF UK
| | - Aikaterini Tatani
- Department of ChemistryUniversity of Sheffield Brook Hill Sheffield, South Yorkshire S3 7HF UK
| | - Fiona C. Meldrum
- School of ChemistryUniversity of Leeds Woodhouse Lane Leeds LS2 9JT UK
| | - Steven P. Armes
- Department of ChemistryUniversity of Sheffield Brook Hill Sheffield, South Yorkshire S3 7HF UK
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32
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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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33
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Douverne M, Ning Y, Tatani A, Meldrum FC, Armes SP. How Many Phosphoric Acid Units Are Required to Ensure Uniform Occlusion of Sterically Stabilized Nanoparticles within Calcite? Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201901307] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Marcel Douverne
- Department of ChemistryUniversity of Sheffield Brook Hill Sheffield, South Yorkshire S3 7HF UK
- Faculty of Chemistry, Pharmaceutical Sciences and GeosciencesJohannes Gutenberg-University Mainz Duesbergweg 10–14 55128 Mainz Germany
| | - Yin Ning
- Department of ChemistryUniversity of Sheffield Brook Hill Sheffield, South Yorkshire S3 7HF UK
| | - Aikaterini Tatani
- Department of ChemistryUniversity of Sheffield Brook Hill Sheffield, South Yorkshire S3 7HF UK
| | - Fiona C. Meldrum
- School of ChemistryUniversity of Leeds Woodhouse Lane Leeds LS2 9JT UK
| | - Steven P. Armes
- Department of ChemistryUniversity of Sheffield Brook Hill Sheffield, South Yorkshire S3 7HF UK
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Kumar A, Priyanka P. Environmentally benign pH-responsive cytidine-5′-monophosphate molecule-mediated akaganeite (5′-CMP-β-FeOOH) soft supramolecular hydrogels induced by the puckering of ribose sugar with efficient loading/release capabilities. NEW J CHEM 2019. [DOI: 10.1039/c9nj02949d] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
A novel synthetic protocol for environmentally benign 5′-CMP-β-FeOOH soft hydrogels exhibiting a rapid pH-responsive reversible sol–gel transition, efficient adsorption and slow release capabilities is reported.
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Affiliation(s)
- Anil Kumar
- Department of Chemistry
- Indian Institute of Technology Roorkee
- Roorkee-247667
- India
| | - Priyanka Priyanka
- Department of Chemistry
- Indian Institute of Technology Roorkee
- Roorkee-247667
- India
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35
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Shi Y, Meng X, Yang H, Song L, Liu S, Xu A, Chen Z, Huang W, Zhao Q. Lysosome-specific sensing and imaging of pH variations in vitro and in vivo utilizing a near-infrared boron complex. J Mater Chem B 2019. [DOI: 10.1039/c8tb03353f] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A NIR lysosome-targeting boron complex has been developed based on hemicyanine for monitoring pH variations in vitro and in vivo.
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Affiliation(s)
- Yuxiang Shi
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors
- Institute of Advanced Materials (IAM)
- Nanjing University of Posts and Telecommunications (NUPT)
- Nanjing 210023
- P. R. China
| | - Xiangchun Meng
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors
- Institute of Advanced Materials (IAM)
- Nanjing University of Posts and Telecommunications (NUPT)
- Nanjing 210023
- P. R. China
| | - Huiran Yang
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors
- Institute of Advanced Materials (IAM)
- Nanjing University of Posts and Telecommunications (NUPT)
- Nanjing 210023
- P. R. China
| | - Linna Song
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors
- Institute of Advanced Materials (IAM)
- Nanjing University of Posts and Telecommunications (NUPT)
- Nanjing 210023
- P. R. China
| | - Shujuan Liu
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors
- Institute of Advanced Materials (IAM)
- Nanjing University of Posts and Telecommunications (NUPT)
- Nanjing 210023
- P. R. China
| | - Aqiang Xu
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors
- Institute of Advanced Materials (IAM)
- Nanjing University of Posts and Telecommunications (NUPT)
- Nanjing 210023
- P. R. China
| | - Zejing Chen
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors
- Institute of Advanced Materials (IAM)
- Nanjing University of Posts and Telecommunications (NUPT)
- Nanjing 210023
- P. R. China
| | - Wei Huang
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors
- Institute of Advanced Materials (IAM)
- Nanjing University of Posts and Telecommunications (NUPT)
- Nanjing 210023
- P. R. China
| | - Qiang Zhao
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors
- Institute of Advanced Materials (IAM)
- Nanjing University of Posts and Telecommunications (NUPT)
- Nanjing 210023
- P. R. China
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Affiliation(s)
- Teresa L. Mako
- Department of Chemistry, University of Rhode Island, 140 Flagg Road, Kingston, Rhode Island 02881, United States
| | - Joan M. Racicot
- Department of Chemistry, University of Rhode Island, 140 Flagg Road, Kingston, Rhode Island 02881, United States
| | - Mindy Levine
- Department of Chemistry, University of Rhode Island, 140 Flagg Road, Kingston, Rhode Island 02881, United States
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37
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Idrissi ME, Meyer CE, Zartner L, Meier W. Nanosensors based on polymer vesicles and planar membranes: a short review. J Nanobiotechnology 2018; 16:63. [PMID: 30165853 PMCID: PMC6116380 DOI: 10.1186/s12951-018-0393-7] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Accepted: 08/25/2018] [Indexed: 12/05/2022] Open
Abstract
This review aims to summarize the advance in the field of nanosensors based on two particular materials: polymer vesicles (polymersomes) and polymer planar membranes. These two types of polymer-based structural arrangements have been shown to be efficient in the production of sensors as their features allow to adapt to different environment but also to increase the sensitivity and the selectivity of the sensing device. Polymersomes and planar polymer membranes offer a platform of choice for a wide range of chemical functionalization and characteristic structural organization which allows a convenient usage in numerous sensing applications. These materials appear as great candidates for such nanosensors considering the broad variety of polymers. They also enable the confection of robust nanosized architectures providing interesting properties for numerous applications in many domains ranging from pollution to drug monitoring. This report gives an overview of these different sensing strategies whether the nanosensors aim to detect chemicals, biological or physical signals.
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Affiliation(s)
- Mohamed El Idrissi
- Department of Chemistry, University of Basel, Mattenstrasse 24a, 4002 Basel, Switzerland
| | - Claire Elsa Meyer
- Department of Chemistry, University of Basel, Mattenstrasse 24a, 4002 Basel, Switzerland
| | - Luisa Zartner
- Department of Chemistry, University of Basel, Mattenstrasse 24a, 4002 Basel, Switzerland
| | - Wolfgang Meier
- Department of Chemistry, University of Basel, Mattenstrasse 24a, 4002 Basel, Switzerland
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38
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Zhang H, Sun Y, Huang R, Cang H, Cai Z, Sun B. pH-sensitive prodrug conjugated polydopamine for NIR-triggered synergistic chemo-photothermal therapy. Eur J Pharm Biopharm 2018; 128:260-271. [PMID: 29733952 DOI: 10.1016/j.ejpb.2018.05.013] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Revised: 05/03/2018] [Accepted: 05/03/2018] [Indexed: 02/06/2023]
Abstract
Combination of chemotherapy with photothermal therapy (PTT) demonstrate highly desirable for efficient medical treatment of tumor. At present works, camptothecin (CPT)-containing polymeric prodrug (PCPT) were fabricated by polymerization of a pH-sensitive camptothecin (CPT) prodrug monomer and MPC using reversible addition-fragmentation transfer (RAFT) strategy. The pH-sensitive polymeric prodrug was tethered onto surface of polydopamine (PDA) nanoparticles by amidation chemistry for combination of chemotherapy with photothermal therapy. Specifically, the active CPT quickly released from the multifunctional nanoparticles in acidic microenvironment ascribe to the cleavage of bifunctional silyl ether linkage. Meanwhile, the PDA could convert the near infrared (NIR) light energy into heat with high efficiency, which makes the resulted nanoparticles an effective platform for photothermal therapy. In vitro analysis confirmed that the PDA@PCPT nanoparticles could be efficiently uptaked by HeLa cells and deliver CPT into the nuclei of cancer cells. The cell viability assays indicated an evident in vitro cytotoxicity to HeLa cancer cells under 808 nm light irradiation. Significant tumor regression was also observed in the tumor-bearing mice model with the combinational therapy provided from the PDA@PCPT nanoparticles. The PDA@PCPT multifunctional system which was achieved by a facile route should be a potential candidate in the anti-cancer field due to the synergistic therapeutic effect, which is superior to any single approach.
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Affiliation(s)
- Huaihong Zhang
- School of Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051, China; College of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
| | - Yu Sun
- College of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
| | - Rong Huang
- College of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
| | - Hui Cang
- School of Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051, China
| | - Zhaosheng Cai
- School of Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051, China
| | - Baiwang Sun
- College of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China.
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39
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Leong J, Teo JY, Aakalu VK, Yang YY, Kong H. Engineering Polymersomes for Diagnostics and Therapy. Adv Healthc Mater 2018; 7:e1701276. [PMID: 29334183 PMCID: PMC6377267 DOI: 10.1002/adhm.201701276] [Citation(s) in RCA: 77] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Revised: 11/30/2017] [Indexed: 12/20/2022]
Abstract
Engineered polymer vesicles, termed as polymersomes, confer a flexibility to control their structure, properties, and functionality. Self-assembly of amphiphilic copolymers leads to vesicles consisting of a hydrophobic bilayer membrane and hydrophilic core, each of which is loaded with a wide array of small and large molecules of interests. As such, polymersomes are increasingly being studied as carriers of imaging probes and therapeutic drugs. Effective delivery of polymersomes necessitates careful design of polymersomes. Therefore, this review article discusses the design strategies of polymersomes developed for enhanced transport and efficacy of imaging probes and therapeutic drugs. In particular, the article focuses on overviewing technologies to regulate the size, structure, shape, surface activity, and stimuli- responsiveness of polymersomes and discussing the extent to which these properties and structure of polymersomes influence the efficacy of cargo molecules. Taken together with future considerations, this article will serve to improve the controllability of polymersome functions and accelerate the use of polymersomes in biomedical applications.
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Affiliation(s)
- Jiayu Leong
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA, Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, The Nanos, Singapore 138669, Singapore
| | - Jye Yng Teo
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA, Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, The Nanos, Singapore 138669, Singapore
| | - Vinay K. Aakalu
- Illinois Eye and Ear Infirmary, University of Illinois at Chicago, Department of Ophthalmology and Visual Sciences, Chicago, IL 60612, USA
| | - Yi Yan Yang
- Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, The Nanos, Singapore 138669, Singapore
| | - Hyunjoon Kong
- Department of Chemical and Biomolecular Engineering, Department of Bioengineering, Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA,
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40
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Madsen J, Ducker RE, Al Jaf O, Cartron ML, Alswieleh AM, Smith CH, Hunter CN, Armes SP, Leggett GJ. Fabrication of microstructured binary polymer brush "corrals" with integral pH sensing for studies of proton transport in model membrane systems. Chem Sci 2018; 9:2238-2251. [PMID: 29719697 PMCID: PMC5897877 DOI: 10.1039/c7sc04424k] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Accepted: 01/14/2018] [Indexed: 11/21/2022] Open
Abstract
Binary brush structures consisting of poly(cysteine methacrylate) (PCysMA) "corrals" enclosed within poly(oligoethylene glycol methyl ether methacrylate) (POEGMA) "walls" are fabricated simply and efficiently using a two-step photochemical process. First, the C-Cl bonds of 4-(chloromethyl)phenylsilane monolayers are selectively converted into carboxylic acid groups by patterned exposure to UV light through a mask and POEGMA is grown from unmodified chlorinated regions by surface-initiated atom-transfer radical polymerisation (ATRP). Incorporation of a ratiometric fluorescent pH indicator, Nile Blue 2-(methacryloyloxy)ethyl carbamate (NBC), into the polymer brushes facilitates assessment of local changes in pH using a confocal laser scanning microscope with spectral resolution capability. Moreover, the dye label acts as a radical spin trap, enabling removal of halogen end-groups from the brushes via in situ dye addition during the polymerisation process. Second, an initiator is attached to the carboxylic acid-functionalised regions formed by UV photolysis in the patterning step, enabling growth of PCysMA brushes by ATRP. Transfer of the system to THF, a poor solvent for PCysMA, causes collapse of the PCysMA brushes. At the interface between the collapsed brush and solvent, selective derivatisation of amine groups is achieved by reaction with excess glutaraldehyde, facilitating attachment of aminobutyl(nitrile triacetic acid) (NTA). The PCysMA brush collapse is reversed on transfer to water, leaving it fully expanded but only functionalized at the brush-water interface. Following complexation of NTA with Ni2+, attachment of histidine-tagged proteorhodopsin and lipid deposition, light-activated transport of protons into the brush structure is demonstrated by measuring the ratiometric response of NBC in the POEGMA walls.
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Affiliation(s)
- J Madsen
- Department of Chemistry , University of Sheffield , Brook Hill , Sheffield S3 7HF , UK . ; ;
| | - R E Ducker
- Department of Chemistry , University of Sheffield , Brook Hill , Sheffield S3 7HF , UK . ; ;
| | - O Al Jaf
- Department of Chemistry , University of Sheffield , Brook Hill , Sheffield S3 7HF , UK . ; ;
| | - M L Cartron
- Department of Molecular Biology and Biotechnology , University of Sheffield , Western Bank , Sheffield S10 2TN , UK
| | | | - C H Smith
- Department of Chemistry , University of Sheffield , Brook Hill , Sheffield S3 7HF , UK . ; ;
| | - C N Hunter
- Department of Molecular Biology and Biotechnology , University of Sheffield , Western Bank , Sheffield S10 2TN , UK
| | - S P Armes
- Department of Chemistry , University of Sheffield , Brook Hill , Sheffield S3 7HF , UK . ; ;
| | - G J Leggett
- Department of Chemistry , University of Sheffield , Brook Hill , Sheffield S3 7HF , UK . ; ;
- Krebs Institute for Mechanistic Biology , University of Sheffield , Sheffield S10 2TN , UK
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41
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Madsen J, Madden G, Themistou E, Warren NJ, Armes SP. pH-Responsive diblock copolymers with two different fluorescent labels for simultaneous monitoring of micellar self-assembly and degree of protonation. Polym Chem 2018. [DOI: 10.1039/c8py00111a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Facile labelling of both blocks of a pH-responsive diblock copolymer with different fluorophores allows monitoring of polymer aggregation and deprotonation.
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Affiliation(s)
- Jeppe Madsen
- Department of Chemistry
- University of Sheffield
- Sheffield
- UK
- Danish Polymer Centre
| | | | - Efrosyni Themistou
- School of Chemistry and Chemical Engineering
- Queen's University Belfast
- Belfast BT9 5AG
- UK
| | - Nicholas J. Warren
- Department of Chemistry
- University of Sheffield
- Sheffield
- UK
- School of Chemical and Process Engineering
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42
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He Z, Chou Y, Zhou H, Zhang H, Cheng T, Liu G. A nitroreductase and acidity detecting dual functional ratiometric fluorescent probe for selectively imaging tumor cells. Org Biomol Chem 2018; 16:3266-3272. [DOI: 10.1039/c8ob00670a] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A dual functional ratiometric fluorescent probe can obviously distinguish acidity, nitroreductase, and nitroreductase in an acidic environment. Confocal fluorescence imaging of A549 cells indicates the probe can detect acidity and expressed nitroreductase in living cells.
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Affiliation(s)
- Zhaoshuai He
- Key Laboratory of Resource Chemistry of Ministry of Education
- Key Laboratory of Rare Earth Functional Materials
- Department of Chemistry
- Shanghai Normal University
- Shanghai 200234
| | - Yajie Chou
- Key Laboratory of Resource Chemistry of Ministry of Education
- Key Laboratory of Rare Earth Functional Materials
- Department of Chemistry
- Shanghai Normal University
- Shanghai 200234
| | - Hanxin Zhou
- Key Laboratory of Resource Chemistry of Ministry of Education
- Key Laboratory of Rare Earth Functional Materials
- Department of Chemistry
- Shanghai Normal University
- Shanghai 200234
| | - Han Zhang
- Key Laboratory of Resource Chemistry of Ministry of Education
- Key Laboratory of Rare Earth Functional Materials
- Department of Chemistry
- Shanghai Normal University
- Shanghai 200234
| | - Tanyu Cheng
- Key Laboratory of Resource Chemistry of Ministry of Education
- Key Laboratory of Rare Earth Functional Materials
- Department of Chemistry
- Shanghai Normal University
- Shanghai 200234
| | - Guohua Liu
- Key Laboratory of Resource Chemistry of Ministry of Education
- Key Laboratory of Rare Earth Functional Materials
- Department of Chemistry
- Shanghai Normal University
- Shanghai 200234
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43
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Xu H, Li D, Zhao Y, Wang X, Li D, Wang Y. Sodium 4-mercaptophenolate capped CdSe/ZnS quantum dots as a fluorescent probe for pH detection in acidic aqueous media. LUMINESCENCE 2017; 33:410-416. [DOI: 10.1002/bio.3428] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Revised: 09/13/2017] [Accepted: 10/16/2017] [Indexed: 12/11/2022]
Affiliation(s)
- Hu Xu
- Research Institute of Applied Catalysis, School of Chemical and Environmental Engineering; Shanghai Institute of Technology; Shanghai P. R. China
| | - Dong Li
- Research Institute of Applied Catalysis, School of Chemical and Environmental Engineering; Shanghai Institute of Technology; Shanghai P. R. China
| | - Yun Zhao
- Research Institute of Applied Catalysis, School of Chemical and Environmental Engineering; Shanghai Institute of Technology; Shanghai P. R. China
| | - Xiaomei Wang
- Research Institute of Applied Catalysis, School of Chemical and Environmental Engineering; Shanghai Institute of Technology; Shanghai P. R. China
| | - Dan Li
- Research Institute of Applied Catalysis, School of Chemical and Environmental Engineering; Shanghai Institute of Technology; Shanghai P. R. China
| | - Yuhong Wang
- Research Institute of Applied Catalysis, School of Chemical and Environmental Engineering; Shanghai Institute of Technology; Shanghai P. R. China
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45
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Sandhu S, Kydd L, Jaworski J. Luminescent Probe Based Techniques for Hypoxia Imaging. JOURNAL OF NANOMEDICINE RESEARCH 2017; 6:00160. [PMID: 30417104 PMCID: PMC6223636 DOI: 10.15406/jnmr.2017.06.00160] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Hypoxia is a condition of tissue environments wherein a lower than normal level of oxygen is available, and it serves as the root cause and indicator of various diseases. Detection of hypoxia in tumors is imperative for furthering our understanding of the pathological effects and the development of proper treatments, as it is well established that hypoxic tumors are able to impede the cancer treatment process by being resistant to many therapies. It is important therefore to be able to detect hypoxia in tissues and tumors through in vivo imaging methods. A growing area for detection of hypoxia in vivo is the use of fluorescent/luminescent probes which has accelerated in recent years. The continued quest for improvements in selectivity and sensitivity has inspired researchers to pursue new strategies for fluorescence/luminescent probe design. This review will discuss various luminescent probes based on small molecules, dyes, macromolecules, and nanoparticles for sensitive and specific detection of oxygen levels directly or by indirect mechanisms such as the presence of enzymes or related factors that arise in a hypoxic environment. Following the particular mechanism of detection, each probe has specific structural and photophysical properties which permit its selectivity and sensitivity. These probes show promise in terms of low toxicity and high specificity among other merits discussed, and in providing new dimensions for hypoxia detection, these works contribute to future potential methods for clinical diagnosis of hypoxic tissues and tumors.
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Affiliation(s)
- Sana Sandhu
- Department of Bioengineering, University of Texas at Arlington, USA
| | - LeNaiya Kydd
- Department of Bioengineering, University of Texas at Arlington, USA
| | - Justyn Jaworski
- Department of Bioengineering, University of Texas at Arlington, USA
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Microfluidic technologies for anticancer drug studies. Drug Discov Today 2017; 22:1654-1670. [DOI: 10.1016/j.drudis.2017.06.010] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Revised: 03/29/2017] [Accepted: 06/28/2017] [Indexed: 01/09/2023]
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Affiliation(s)
- Yanan Liu
- College of Chemistry and Pharmaceutical Science; Qingdao Agricultural University; 266109 Qingdao People's Republic of China
| | - Zuwei Song
- College of Chemistry and Pharmaceutical Science; Qingdao Agricultural University; 266109 Qingdao People's Republic of China
| | - Libin Gao
- College of Chemistry and Pharmaceutical Science; Qingdao Agricultural University; 266109 Qingdao People's Republic of China
| | - Jianzhong Li
- College of Chemistry and Pharmaceutical Science; Qingdao Agricultural University; 266109 Qingdao People's Republic of China
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48
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Li D, Xu H, Li D, Wang Y. p -Aminothiophenol-coated CdSe/ZnS quantum dots as a turn-on fluorescent probe for pH detection in aqueous media. Talanta 2017; 166:54-62. [DOI: 10.1016/j.talanta.2017.01.032] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2016] [Revised: 12/31/2016] [Accepted: 01/10/2017] [Indexed: 11/25/2022]
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49
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Kondo T, Kimura Y, Yamada H, Aoyama Y. Polymeric 1 H MRI Probes for Visualizing Tumor In Vivo. CHEM REC 2017; 17:555-568. [PMID: 28387472 DOI: 10.1002/tcr.201600144] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2016] [Indexed: 11/09/2022]
Abstract
Magnetic resonance imaging (MRI) has become a prominent non- or low-invasive imaging technique, providing high-resolution, three-dimensional images as well as physiological information about tissues. Low-molecular-weight Gd-MRI contrast agents (CAs), such as Gd-DTPA (DTPA: diethylenetriaminepentaacetic acid), are commonly used in the clinical diagnosis, while macromolecular Gd-MRI CAs have several advantages over low-molecular-weight Gd-MRI CAs, which help minimize the dose of CAs and the risk of side effects. Accordingly, we developed chiral dendrimer Gd-MRI CAs, which showed high r1 values. The association constant values (Ka ) of S-isomeric dendrimer CAs to bovine serum albumin (BSA) were higher than those of R-isomeric dendrimer CAs. Besides, based on a totally new concept, we developed 13 C/15 N-enriched multiple-resonance NMR/MRI probes, which realized highly selective observation of the probes and analysis of metabolic reactions of interest. This account summarizes our recent study on developing both chiral dendrimer Gd-MRI CAs, and self-traceable 13 C/15 N-enriched phosphorylcholine polymer probes for early detection of tumors.
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Affiliation(s)
- Teruyuki Kondo
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto, 6158510, JAPAN
| | - Yu Kimura
- Research and Educational Unit of Leaders for Integrated Medical Systems, Center for the Promotion of Interdisciplinary Education and Research, Kyoto University, Katsura, Nishikyo-ku, Kyoto, 6158510, JAPAN
| | - Hisatsugu Yamada
- Field of Bioresource Chemistry and Technology, Graduate School of Bioscience and Bioindustry, Tokushima University, 2-1, Minamijosanjima-cho, Tokushima, 7708506, JAPAN
| | - Yasuhiro Aoyama
- Professor emeritus, Kyoto University, Katsura, Nishikyo-ku, Kyoto, 6158510, JAPAN
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Meng TT, Wang H, Zheng ZB, Wang KZ. pH-Switchable "Off-On-Off" Near-Infrared Luminescence Based on a Dinuclear Ruthenium(II) Complex. Inorg Chem 2017; 56:4775-4779. [PMID: 28387505 DOI: 10.1021/acs.inorgchem.7b00223] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The pH-switchable room-temperature near-infrared (NIR) phosphorescence emission based on ruthenium(II) polypyridyl complexes has been very rarely reported, even though it is very desirable for applications in sensing, switching, and logic molecular devices and bioimaging. Here we report a novel dinuclear ruthenium(II) complex in an aerated acetonitrile solution featuring a bright NIR emission centered at 760 nm with an absolute quantum yield of 1.03%, a large Stokes shift of 254 nm, and a long emission lifetime of 108.3 ± 0.4 ns. The complex in a Britton-Roberson buffer also exhibited pH-induced "off-on-off" NIR luminescent switches with a maximum intensity enhancement factor of 41 and one of the switching events occurring near the physiological pH range.
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Affiliation(s)
- Ting-Ting Meng
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University , Beijing 100875, P. R. China
| | - Hao Wang
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University , Beijing 100875, P. R. China
| | - Ze-Bao Zheng
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University , Beijing 100875, P. R. China
| | - Ke-Zhi Wang
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University , Beijing 100875, P. R. China
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