1
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Zhao X, Zhu R, Anikovskiy M, Wu Q, Ding Z. Profiling H 2O 2 from single COS-7 cells by means of scanning electrochemical microscopy. Biosens Bioelectron 2023; 227:115123. [PMID: 36812793 DOI: 10.1016/j.bios.2023.115123] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 01/22/2023] [Accepted: 02/02/2023] [Indexed: 02/09/2023]
Abstract
We report quantitative determination of extracellular H2O2 released from single COS-7 cells with high spatial resolution, using scanning electrochemical microscopy (SECM). Our strategy of depth scan imaging in vertical x-z plane was conveniently utilized to a single cell for obtaining probe approach curves (PACs) to any positions on the membrane of a live cell by simply drawing a vertical line on one depth SECM image. This SECM mode provides an efficient way to record a batch of PACs, and visualize cell topography simultaneously. The H2O2 concentration at the membrane surface in the center of an intact COS-7 cell was deconvoluted from apparent O2, and determined to be 0.020 mM by overlapping the experimental PAC with the simulated one having a known H2O2 release value. The H2O2 profile determined in this way gives insight into physiological activity of single live cells. In addition, intracellular H2O2 profile was demonstrated using confocal microscopy by labelling the cells with a luminomphore, 2',7'-dichlorodihydrofluorescein diacetate. The two methodologies have illustrated complementary experimental results of H2O2 detection, indicating that H2O2 generation is centered at endoplasmic reticula.
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Affiliation(s)
- Xiaocui Zhao
- Department of Chemistry, The University of Western Ontario, Chemistry Building, 1151 Richmond Street, London, Ontario, N6A 5B7, Canada
| | - Renkang Zhu
- Department of Chemistry, The University of Western Ontario, Chemistry Building, 1151 Richmond Street, London, Ontario, N6A 5B7, Canada
| | - Max Anikovskiy
- Department of Chemistry, University of Calgary, Calgary, AB, T2N 1N4, Canada
| | - Qingxi Wu
- School of Life Sciences, Anhui University, Hefei, 230601, Anhui, China
| | - Zhifeng Ding
- Department of Chemistry, The University of Western Ontario, Chemistry Building, 1151 Richmond Street, London, Ontario, N6A 5B7, Canada.
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2
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Xu Y, Zhu H, Ding Z, Zhao X, Yin J, Graff B, Gao J, Lalevée J. Distinctive Colorimetric Response of Benzaldehyde Substituted Polydiacetylene Vesicle to Temperature, pH and Organic Amines. MACROMOL CHEM PHYS 2022. [DOI: 10.1002/macp.202200216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yangyang Xu
- College of Chemistry and Materials Science Anhui Normal University South Jiuhua Road 189 Wuhu Anhui Province 241002 P. R. China
| | - Haibin Zhu
- College of Chemistry and Materials Science Anhui Normal University South Jiuhua Road 189 Wuhu Anhui Province 241002 P. R. China
| | - Zhaofu Ding
- College of Chemistry and Materials Science Anhui Normal University South Jiuhua Road 189 Wuhu Anhui Province 241002 P. R. China
| | - Xianjun Zhao
- College of Chemistry and Materials Science Anhui Normal University South Jiuhua Road 189 Wuhu Anhui Province 241002 P. R. China
| | - Jiansong Yin
- College of Chemistry and Materials Science Anhui Normal University South Jiuhua Road 189 Wuhu Anhui Province 241002 P. R. China
| | - Bernadette Graff
- CNRS Université de Haute‐Alsace IS2M UMR 7361 Mulhouse F‐68100 France
| | - Jiangang Gao
- School of Chemical and Environmental Engineering Anhui Polytechnic University 8th Beijing Middle Road Wuhu 241000 P. R. China
| | - Jacques Lalevée
- CNRS Université de Haute‐Alsace IS2M UMR 7361 Mulhouse F‐68100 France
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3
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Jagtap A, More A. A review on self-initiated and photoinitiator-free system for photopolymerization. Polym Bull (Berl) 2021. [DOI: 10.1007/s00289-021-03887-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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4
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Stimulus-responsive liposomes for biomedical applications. Drug Discov Today 2021; 26:1794-1824. [PMID: 34058372 DOI: 10.1016/j.drudis.2021.05.010] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 03/01/2021] [Accepted: 05/17/2021] [Indexed: 02/08/2023]
Abstract
Liposomes are amphipathic lipidic supramolecular aggregates that are able to encapsulate and carry molecules of both hydrophilic and hydrophobic nature. They have been widely used as in vivo drug delivery systems for some time because they offer features such as synthetic flexibility, biodegradability, biocompatibility, low immunogenicity, and negligible toxicity. In recent years, the chemical modification of liposomes has paved the way to the development of smart liposome-based drug delivery systems, which are characterized by even more tunable and disease-directed features. In this review, we highlight the different types of chemical modification introduced to date, with a particular focus on internal stimuli-responsive liposomes and prodrug activation.
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5
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Bellare M, Kadambar VK, Bollella P, Katz E, Melman A. Electrochemically stimulated molecule release associated with interfacial pH changes. Chem Commun (Camb) 2019; 55:7856-7859. [DOI: 10.1039/c9cc03467f] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Molecular release was activated with an electrochemical signal, resulting in the hydrolysis of a linker.
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Affiliation(s)
- Madhura Bellare
- Department of Chemistry and Biomolecular Science
- Clarkson University
- Potsdam
- USA
| | | | - Paolo Bollella
- Department of Chemistry and Biomolecular Science
- Clarkson University
- Potsdam
- USA
| | - Evgeny Katz
- Department of Chemistry and Biomolecular Science
- Clarkson University
- Potsdam
- USA
| | - Artem Melman
- Department of Chemistry and Biomolecular Science
- Clarkson University
- Potsdam
- USA
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6
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Wongkaew N, Simsek M, Griesche C, Baeumner AJ. Functional Nanomaterials and Nanostructures Enhancing Electrochemical Biosensors and Lab-on-a-Chip Performances: Recent Progress, Applications, and Future Perspective. Chem Rev 2018; 119:120-194. [DOI: 10.1021/acs.chemrev.8b00172] [Citation(s) in RCA: 303] [Impact Index Per Article: 50.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Nongnoot Wongkaew
- Institute of Analytical Chemistry, Chemo- and Biosensors, University of Regensburg, 93053 Regensburg, Germany
| | - Marcel Simsek
- Institute of Analytical Chemistry, Chemo- and Biosensors, University of Regensburg, 93053 Regensburg, Germany
| | - Christian Griesche
- Institute of Analytical Chemistry, Chemo- and Biosensors, University of Regensburg, 93053 Regensburg, Germany
| | - Antje J. Baeumner
- Institute of Analytical Chemistry, Chemo- and Biosensors, University of Regensburg, 93053 Regensburg, Germany
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7
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Redox-stimuli-responsive drug delivery systems with supramolecular ferrocenyl-containing polymers for controlled release. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2018.03.013] [Citation(s) in RCA: 91] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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8
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Lou J, Carr AJ, Watson AJ, Mattern-Schain SI, Best MD. Calcium-Responsive Liposomes via a Synthetic Lipid Switch. Chemistry 2018; 24:3599-3607. [PMID: 29323763 DOI: 10.1002/chem.201705810] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Indexed: 12/31/2022]
Abstract
Liposomal drug delivery would benefit from enhanced control over content release. Here, we report a novel avenue for triggering release driven by chemical composition using liposomes sensitized to calcium-a target chosen due to its key roles in biology and disease. To demonstrate this principle, we synthesized calcium-responsive lipid switch 1, designed to undergo conformational changes upon calcium binding. The conformational change perturbs membrane integrity, thereby promoting cargo release. This was shown through fluorescence-based release assays via dose-dependent response depending on the percentage of 1 in liposomes, with minimal background leakage in controls. DLS experiments indicated dramatic changes in particle size upon treatment of liposomes containing 1 with calcium. In a comparison of ten naturally occurring metal cations, calcium provided the greatest release. Finally, STEM images showed significant changes in liposome morphology upon treatment of liposomes containing 1 with calcium. These results showcase lipid switches driven by molecular recognition principles as an exciting avenue for controlling membrane properties.
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Affiliation(s)
- Jinchao Lou
- Department of Chemistry, University of Tennessee, 1420 Circle Drive, Knoxville, TN, 37996, USA
| | - Adam J Carr
- Department of Chemistry, University of Tennessee, 1420 Circle Drive, Knoxville, TN, 37996, USA
| | - Alexa J Watson
- Department of Chemistry, University of Tennessee, 1420 Circle Drive, Knoxville, TN, 37996, USA
| | - Samuel I Mattern-Schain
- Department of Chemistry, University of Tennessee, 1420 Circle Drive, Knoxville, TN, 37996, USA
| | - Michael D Best
- Department of Chemistry, University of Tennessee, 1420 Circle Drive, Knoxville, TN, 37996, USA
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9
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Ohtani R, Tokita T, Takaya T, Iwata K, Kinoshita M, Matsumori N, Nakamura M, Lindoy LF, Hayami S. The impact of metal complex lipids on viscosity and curvature of hybrid liposomes. Chem Commun (Camb) 2017; 53:13249-13252. [PMID: 29184922 DOI: 10.1039/c7cc07944c] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
A morphology transformation of hybrid liposomes was shown to occur from spherical vesicles to tubular micelles when increasing the ratio of the metal complex lipid present. Phase transition temperatures increased while viscosities decreased, indicating that the hybrids exhibit stronger interaction between heads but weaker interaction between alkyl chains than occurs in pristine liposomes.
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Affiliation(s)
- Ryo Ohtani
- Department of Chemistry, Graduate School of Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, Japan.
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10
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Jing Y, Danielsson A, Trefná HD, Persson M, Svedhem S. Asymmetric cationic liposomes designed for heat-activated association with cells. Colloids Surf B Biointerfaces 2017; 151:112-118. [PMID: 27987456 DOI: 10.1016/j.colsurfb.2016.06.041] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Revised: 06/21/2016] [Accepted: 06/23/2016] [Indexed: 11/17/2022]
Abstract
Improved anticancer drugs and drug carriers are needed in combination therapies, such as hyperthermia-assisted chemotherapy. Liposomal drug carriers with advanced functions are attractive candidates for targeted accumulation and drug release in response to heat stimulus. We report on the design of liposomes with a heat-activated surface function. Our design is based on asymmetric lipid membranes with a defined gel to liquid-crystalline phase-transition temperature around 41°C. Asymmetry between the inner and the outer membrane leaflets was generated through selective PEGylation of cationic lipids in the outer membrane leaflet. In a physiological buffer, the PEGylated asymmetric liposomes had a neutral zeta potential and did not bind to planar anionic model membranes. In contrast, following upon heat-activation, binding of liposomes to the model membranes occurred. Release of a hydrophilic dye encapsulated in the asymmetric liposomes occurred at 40°C. Enhanced uptake of the asymmetric liposomes by hypopharyngeal carcinoma cells (FaDu cells) was observed when hyperthermia was applied compared to experiments performed at 37°C. These results show the potential of asymmetric liposomes for localized delivery of drugs into cells in response to (external) temperature stimulus.
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Affiliation(s)
- Yujia Jing
- Department of Applied Physics, Chalmers University of Technology, SE-412 96 Göteborg, Sweden; Department of Signals and Systems, Chalmers University of Technology, SE-412 96 Göteborg, Sweden
| | - Anna Danielsson
- Sahlgrenska Cancer Center, Department of Oncology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, SE-405 30 Göteborg, Sweden
| | - Hana Dobšíček Trefná
- Department of Signals and Systems, Chalmers University of Technology, SE-412 96 Göteborg, Sweden
| | - Mikael Persson
- Department of Signals and Systems, Chalmers University of Technology, SE-412 96 Göteborg, Sweden
| | - Sofia Svedhem
- Department of Applied Physics, Chalmers University of Technology, SE-412 96 Göteborg, Sweden.
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11
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Yan Y, Zhang J, Ren L, Tang C. Metal-containing and related polymers for biomedical applications. Chem Soc Rev 2016; 45:5232-63. [PMID: 26910408 PMCID: PMC4996776 DOI: 10.1039/c6cs00026f] [Citation(s) in RCA: 187] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A survey of the most recent progress in the biomedical applications of metal-containing polymers is given. Due to the unique optical, electrochemical, and magnetic properties, at least 30 different metal elements, most of them transition metals, are introduced into polymeric frameworks for interactions with biology-relevant substrates via various means. Inspired by the advance of metal-containing small molecular drugs and promoted by the great progress in polymer chemistry, metal-containing polymers have gained momentum during recent decades. According to their different applications, this review summarizes the following biomedical applications: (1) metal-containing polymers as drug delivery vehicles; (2) metal-containing polymeric drugs and biocides, including antimicrobial and antiviral agents, anticancer drugs, photodynamic therapy agents, radiotherapy agents and biocides; (3) metal-containing polymers as biosensors, and (4) metal-containing polymers in bioimaging.
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Affiliation(s)
- Yi Yan
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC 29208, United States
- Department of Applied Chemistry, School of Science, Northwestern Polytechnical, University, Xi’an, Shannxi, 710129, China
| | - Jiuyang Zhang
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC 29208, United States
| | - Lixia Ren
- School of Material Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Chuanbing Tang
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC 29208, United States
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12
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Tian J, Chen J, Ge C, Liu X, He J, Ni P, Pan Y. Synthesis of PEGylated Ferrocene Nanoconjugates as the Radiosensitizer of Cancer Cells. Bioconjug Chem 2016; 27:1518-24. [PMID: 27120689 DOI: 10.1021/acs.bioconjchem.6b00168] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
| | - Jie Chen
- The Second Affiliated Hospital of Soochow University and General Hospital of Nuclear Industry, Suzhou 215004, China
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13
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Noyhouzer T, L'Homme C, Beaulieu I, Mazurkiewicz S, Kuss S, Kraatz HB, Canesi S, Mauzeroll J. Ferrocene-Modified Phospholipid: An Innovative Precursor for Redox-Triggered Drug Delivery Vesicles Selective to Cancer Cells. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:4169-4178. [PMID: 26987014 DOI: 10.1021/acs.langmuir.6b00511] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Controlled payload release is one of the key elements in the creation of a reliable drug delivery system. We report the discovery of a drug delivery vessel able to transport chemotherapeutic agents to target cancer cells and selectively trigger their release using the electrochemical activity of a ferrocene-modified phospholipid. Supported by in vitro assays, the competitive advantages of this discovery are (i) the simple one step scalability of the synthetic process, (ii) the stable encapsulation of toxic drugs (doxorubicin) during transport, and (iii) the selective redox triggering of the liposomes to harness their cytotoxic payload at the cancer site. Specifically, the redox-modified giant unilamellar vesicle and liposomes were characterized using advanced methods such as scanning electrochemical microscopy (SECM), transmission electron microscopy (TEM), dynamic light scattering (DLS), and fluorescent imaging.
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Affiliation(s)
- Tomer Noyhouzer
- Department of Chemistry, McGill University , 801 Sherbrooke Street West, Montreal, Quebec, Canada H3A OB8
| | - Chloé L'Homme
- Laboratoire de Méthodologie et Synthèse de Produits Naturels, Université du Québec à Montréal , C.P. 8888, Succ. Centre-Ville, Montréal, H3C 3P8, Québec, Canada
| | - Isabelle Beaulieu
- Department of Chemistry, McGill University , 801 Sherbrooke Street West, Montreal, Quebec, Canada H3A OB8
| | - Stephanie Mazurkiewicz
- Department of Chemistry, McGill University , 801 Sherbrooke Street West, Montreal, Quebec, Canada H3A OB8
| | - Sabine Kuss
- Department of Chemistry, McGill University , 801 Sherbrooke Street West, Montreal, Quebec, Canada H3A OB8
| | - Heinz-Bernhard Kraatz
- Department of Physical and Environmental Sciences, University of Toronto Scarborough , Toronto, Ontario M1C 1A4, Canada
| | - Sylvain Canesi
- Laboratoire de Méthodologie et Synthèse de Produits Naturels, Université du Québec à Montréal , C.P. 8888, Succ. Centre-Ville, Montréal, H3C 3P8, Québec, Canada
| | - Janine Mauzeroll
- Department of Chemistry, McGill University , 801 Sherbrooke Street West, Montreal, Quebec, Canada H3A OB8
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14
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Abstract
Charges make the difference in the arrangement of smart polymer chains and networks.
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15
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Hama S, Ogino C, Kondo A. Enzymatic synthesis and modification of structured phospholipids: recent advances in enzyme preparation and biocatalytic processes. Appl Microbiol Biotechnol 2015; 99:7879-91. [DOI: 10.1007/s00253-015-6845-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Revised: 07/10/2015] [Accepted: 07/13/2015] [Indexed: 01/25/2023]
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16
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Noël JM, Mottet L, Bremond N, Poulin P, Combellas C, Bibette J, Kanoufi F. Multiscale electrochemistry of hydrogels embedding conductive nanotubes. Chem Sci 2015; 6:3900-3905. [PMID: 29218161 PMCID: PMC5707460 DOI: 10.1039/c5sc00549c] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Accepted: 04/02/2015] [Indexed: 11/21/2022] Open
Abstract
The local functionalities of biocompatible objects can be characterized under conditions similar to the operating ones, using scanning electrochemical microscopy (SECM). In the case of alginate beads entrapping carbon nanotubes (CNTs), SECM allows evidencing of the local conductivity, organization, and communication between the CNTs. It shows that the CNT network is active enough to allow long range charge evacuation, enabling the use of alginate/CNT beads as soft 3D electrodes. Direct connection or local interrogation by a microelectrode allows visualization of their communication as a network and eventually the study of them individually at the nanoscale.
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Affiliation(s)
- Jean-Marc Noël
- Sorbonne Paris Cité , Paris Diderot University , Interfaces , Traitements , Organisation et Dynamique des Systèmes (ITODYS) , CNRS-UMR 7086 , 15 rue J. A. de Baif , 75013 Paris , France . ; ; Tel: +33 157277217
| | - Léopold Mottet
- Laboratoire Colloïdes et Matériaux Divisés , Institute of Chemistry , Biology and Innovation (CBI) - ESPCI ParisTech/CNRS-UMR8231/PSL Research University , 10 rue Vauquelin 75231 , Paris Cedex , France
| | - Nicolas Bremond
- Laboratoire Colloïdes et Matériaux Divisés , Institute of Chemistry , Biology and Innovation (CBI) - ESPCI ParisTech/CNRS-UMR8231/PSL Research University , 10 rue Vauquelin 75231 , Paris Cedex , France
| | - Philippe Poulin
- Centre de Recherche Paul Pascal - CNRS , University of Bordeaux , 115 Avenue Schweitzer , 33600 Pessac , France
| | - Catherine Combellas
- Sorbonne Paris Cité , Paris Diderot University , Interfaces , Traitements , Organisation et Dynamique des Systèmes (ITODYS) , CNRS-UMR 7086 , 15 rue J. A. de Baif , 75013 Paris , France . ; ; Tel: +33 157277217
| | - Jérôme Bibette
- Laboratoire Colloïdes et Matériaux Divisés , Institute of Chemistry , Biology and Innovation (CBI) - ESPCI ParisTech/CNRS-UMR8231/PSL Research University , 10 rue Vauquelin 75231 , Paris Cedex , France
| | - Frédéric Kanoufi
- Sorbonne Paris Cité , Paris Diderot University , Interfaces , Traitements , Organisation et Dynamique des Systèmes (ITODYS) , CNRS-UMR 7086 , 15 rue J. A. de Baif , 75013 Paris , France . ; ; Tel: +33 157277217
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17
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Jing Y, Trefná HD, Persson M, Svedhem S. Heat-activated liposome targeting to streptavidin-coated surfaces. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2015; 1848:1417-23. [DOI: 10.1016/j.bbamem.2015.02.022] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2014] [Revised: 02/01/2015] [Accepted: 02/20/2015] [Indexed: 12/23/2022]
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18
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Vulugundam G, Kumar K, Kondaiah P, Bhattacharya S. Efficacious redox-responsive gene delivery in serum by ferrocenylated monomeric and dimeric cationic cholesterols. Org Biomol Chem 2015; 13:4310-20. [DOI: 10.1039/c4ob02513j] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
New redox-active monomeric and dimeric ferrocenylated cationic cholesterols for gene transfection.
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Affiliation(s)
| | - Krishan Kumar
- Department of Organic Chemistry
- Indian Institute of Science
- Bangalore
- India
| | - Paturu Kondaiah
- Department of Molecular Reproduction Development and Genetics
- Indian Institute of Science
- Bangalore
- India
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19
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Cottenye N, Carbajal G, Cui ZK, Ducharme PD, Mauzeroll J, Lafleur M. Formation, stability, and pH sensitivity of free-floating, giant unilamellar vesicles using palmitic acid-cholesterol mixtures. SOFT MATTER 2014; 10:6451-6456. [PMID: 25058525 DOI: 10.1039/c4sm00883a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Despite the fact that palmitic acid (PA) and cholesterol (Chol) do not form fluid bilayers once hydrated individually, giant unilamellar vesicles (GUVs) were formed from a mixture of palmitic acid and cholesterol, 30/70 mol/mol. These free-floating GUVs were stable over weeks, did not aggregate and were shown to be highly stable in alkaline pH compared to conventional phospholipid-based GUVs. Acidic pH-triggered payload release from the GUVs was associated with the protonation state of palmitic acid that dictated the mixing lipid properties, thus affecting the stability of the fluid lamellar phase. The successful formation of PA-Chol GUVs reveals the possibility to create monoalkylated amphiphile-based GUVs with distinct pH stability/sensitivity.
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Affiliation(s)
- Nicolas Cottenye
- Department of Chemistry, Center for Self-Assembled Chemical Structures, Université de Montréal, PO Box 6128, Station Downtown, Montréal, Québec H3C 3J7, Canada.
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20
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Trofimov BA, Oparina LA, Tarasova OA, Artem'ev AV, Kobychev VB, Gatilov YV, Albanov AI, Gusarova NK. Tuneable superbase-catalyzed vinylation of α-hydroxyalkylferrocenes with alkynes. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.06.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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21
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Joshi-Barr S, de Gracia Lux C, Mahmoud E, Almutairi A. Exploiting oxidative microenvironments in the body as triggers for drug delivery systems. Antioxid Redox Signal 2014; 21:730-54. [PMID: 24328819 PMCID: PMC4098119 DOI: 10.1089/ars.2013.5754] [Citation(s) in RCA: 100] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
SIGNIFICANCE Reactive oxygen species and reactive nitrogen species (ROS/RNS) play an important role in cell signaling pathways. However, the increased production of these species may disrupt cellular homeostasis, giving rise to pathological conditions. Biomaterials that are responsive to ROS/RNS can be strategically used to specifically release therapeutics and diagnostic agents to regions undergoing oxidative stress. RECENT ADVANCES Many nanocarriers intended to exploit redox micro-environments as triggers for drug release, summarized and compared in this review, have recently been developed. We describe these carriers' chemical structures, strategies for payload protection and oxidation-selective release, and ROS/RNS sensitivity as tested in initial studies. CRITICAL ISSUES ROS/RNS are unstable, so reliable measures of their concentrations in various conditions are scarce. Combined with the dearth of materials shown to respond to physiologically relevant levels of ROS/RNS, evaluations of their true sensitivity are difficult. FUTURE DIRECTIONS Oxidation-responsive nanocarriers developed thus far show tremendous potential for applicability in vivo; however, the sensitivity of these chemistries needs to be fine tuned to enable responses to physiological levels of ROS and RNS.
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Affiliation(s)
- Shivanjali Joshi-Barr
- 1 Skaggs School of Pharmacy and Pharmaceutical Sciences, Laboratory of Bioresponsive Materials, University of California , San Diego, San Diego, California
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22
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Rosseto R, Hajdu J. Synthesis of phospholipids on a glyceric acid scaffold: design and preparation of phospholipase A 2 specific substrates. Tetrahedron 2014; 70:3155-3165. [PMID: 25061236 DOI: 10.1016/j.tet.2014.03.054] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Synthesis of a new series of phospholipid analogues to serve as activity-based probes of secretory phospholipase A2 enzymes is reported. The synthesis is based upon 1) preparation of long-chain esters and amides of glyceric acid, followed by 2) regioselective derivatization of the diol function of the molecule to achieve phosphorylation at the primary hydroxyl group, and to introduce the incipient sn-2-ester group of the target compounds. The sequence has been shown to allow incorporation of fluorescent, paramagnetic, and redox-active reporter groups, leading to phospholipid analogues applicable to detect and measure enzyme activity, to develop highly specific, real-time spectroscopic assay of phospholipase A2 enzymes, as well as to track the metabolic fate of the hydrolysis products. The synthetic method has a great deal of flexibility to open the way to the design and synthesis of activity-probes for other phospholipid metabolizing enzymes as well.
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Affiliation(s)
- Renato Rosseto
- Department of Chemistry and Biochemistry, and Center for Supramolecular Studies California State University, Northridge, Northridge, CA 91330, USA
| | - Joseph Hajdu
- Department of Chemistry and Biochemistry, and Center for Supramolecular Studies California State University, Northridge, Northridge, CA 91330, USA
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23
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Tomasi R, Noël JM, Zenati A, Ristori S, Rossi F, Cabuil V, Kanoufi F, Abou-Hassan A. Chemical communication between liposomes encapsulating a chemical oscillatory reaction. Chem Sci 2014. [DOI: 10.1039/c3sc53227e] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Electrochemical measurements and numerical simulations are employed to understand the chemical communication between liposomes prepared in microfluidics and encapsulating a chemical oscillator.
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Affiliation(s)
- Raphaël Tomasi
- UPMC Univ Paris 6
- PECSA
- UMR 7195
- équipe Colloïdes Inorganiques
- Université Paris 6 (UPMC) Bat F(74)
| | - Jean-Marc Noël
- ESPCI ParisTech
- PECSA
- UMR 7195
- F-75231 Paris Cedex 05, France
| | - Aymen Zenati
- UPMC Univ Paris 6
- PECSA
- UMR 7195
- équipe Colloïdes Inorganiques
- Université Paris 6 (UPMC) Bat F(74)
| | | | - Federico Rossi
- Department of Chemistry and Biology
- University of Salerno
- Fisciano (SA), Italy
| | - Valérie Cabuil
- UPMC Univ Paris 6
- PECSA
- UMR 7195
- équipe Colloïdes Inorganiques
- Université Paris 6 (UPMC) Bat F(74)
| | | | - Ali Abou-Hassan
- UPMC Univ Paris 6
- PECSA
- UMR 7195
- équipe Colloïdes Inorganiques
- Université Paris 6 (UPMC) Bat F(74)
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24
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Chen H, Zhang Z, Cai R, Rao W, Long F. Molecularly imprinted electrochemical sensor based on nickel nanoparticles-graphene nanocomposites modified electrode for determination of tetrabromobisphenol A. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2013.11.185] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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25
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Agmo Hernández V, Reijmar K, Edwards K. Label-Free Characterization of Peptide–Lipid Interactions Using Immobilized Lipodisks. Anal Chem 2013; 85:7377-84. [DOI: 10.1021/ac4012842] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Víctor Agmo Hernández
- Department of Chemistry − BMC, Uppsala University, Box 579, SE-75123, Uppsala, Sweden
| | - Karin Reijmar
- Department of Chemistry − BMC, Uppsala University, Box 579, SE-75123, Uppsala, Sweden
| | - Katarina Edwards
- Department of Chemistry − BMC, Uppsala University, Box 579, SE-75123, Uppsala, Sweden
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26
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Chen LC, Lin SS, Li CZ, Hsu HF, Weng YJ, Cheng CC. Dynamic Structural Transformation of Resveratrol-Modified Stearate Liposomes Led to a Spontaneous Drug Release System. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.201300184] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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27
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Lallana E, Tirelli N. Oxidation-Responsive Polymers: Which Groups to Use, How to Make Them, What to Expect From Them (Biomedical Applications). MACROMOL CHEM PHYS 2012. [DOI: 10.1002/macp.201200502] [Citation(s) in RCA: 91] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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28
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Breuer R, Schmittel M. Redox-Stable SAMs in Water (pH 0–12) from 1,1′-Biferrocenylene-Terminated Thiols on Gold. Organometallics 2012. [DOI: 10.1021/om300718k] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Rochus Breuer
- Center of Micro and Nanochemistry and Engineering, Organische Chemie I, Universität Siegen, Adolf-Reichwein-Straße
2, D-57068 Siegen, Germany
| | - Michael Schmittel
- Center of Micro and Nanochemistry and Engineering, Organische Chemie I, Universität Siegen, Adolf-Reichwein-Straße
2, D-57068 Siegen, Germany
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29
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Mårtensson C, Agmo Hernández V. Ubiquinone-10 in gold-immobilized lipid membrane structures acts as a sensor for acetylcholine and other tetraalkylammonium cations. Bioelectrochemistry 2012; 88:171-80. [PMID: 22542468 DOI: 10.1016/j.bioelechem.2012.03.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2012] [Revised: 03/13/2012] [Accepted: 03/30/2012] [Indexed: 01/02/2023]
Abstract
It is reported that the reduction of ubiquinone incorporated into supported lipid bilayers and into immobilized liposome layers on gold electrodes is kinetically and thermodynamically enhanced by the presence of acetylcholine and tetrabutylammonium (TBA(+)) in solution. The reduction peak and the mid-peak potentials of the redox reactions, determined by cyclic voltammetry, are displaced towards more positive potentials by approximately 500 and 250mV, respectively, in the case of TBA(+); and by approximately 750 and 530mV, respectively, in the case of acetylcholine. The intensity of the signal varies with the cation concentration, allowing for quantitative determinations in the millimolar range. It is proposed that the enhanced reduction of ubiquinone arises from the formation of tetraalkylammonium cation-ubiquinone radical anion ion-pairs. Electrochemical quartz crystal microbalance with dissipation monitoring (EQCM-D) measurements confirmed that the potential shift and the intensity of the redox signal are coupled with the adsorption of the tetraalkylammonium cations on the lipid membrane. The Langmuir adsorption equilibrium constant (K) of TBA(+) on lipid membranes at physiological pH is determined. In supported lipid bilayers K=440.7±160M(-1), while in an immobilized liposome layer K=35.53±3.53M(-1).
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Affiliation(s)
- Christoffer Mårtensson
- Department of Physical and Analytical Chemistry, Uppsala University, Husargatan 3, Box 579, 75123, Uppsala, Sweden.
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30
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Jańczewski D, Song J, Csányi E, Kiss L, Blazsó P, Katona RL, Deli MA, Gros G, Xu J, Vancso GJ. Organometallic polymeric carriers for redox triggered release of molecular payloads. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm15755a] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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