1
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Parshina YP, Kovylina TA, Konev AN, Belikov AA, Baber PO, Komarova AD, Romaeva EA, Bochkarev LN. Norbornene-Substituted Cationic Iridium(III) Complex and Water-Soluble Luminescent Polymers Based on It: Synthesis, Photophysical and Cytotoxic Properties. RUSS J GEN CHEM+ 2022. [DOI: 10.1134/s1070363222120167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
Abstract
A norbornene-substituted cationic iridium(III) complex containing 1-phenylisoquinoline cyclometalating ligands and an additional phenylimidazophenanthroline ligand was synthesized. On the base of this complex, water-soluble polymers were obtained by ring-opening metathesis polymerization (ROMP). The resulting polymers showed oxygen-dependent phosphorescence in the orange spectral region and high cytotoxicity against HCT116 cancer cells.
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2
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Affiliation(s)
- Toshio Takayanagi
- Graduate School of Technology, Industrial and Social Sciences, Tokushima University, 2-1 Minamijyousanjima-cho, Tokushima, 770-8506, Japan.
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3
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Simultaneous Probing of Metabolism and Oxygenation of Tumors In Vivo Using FLIM of NAD(P)H and PLIM of a New Polymeric Ir(III) Oxygen Sensor. Int J Mol Sci 2022; 23:ijms231810263. [PMID: 36142177 PMCID: PMC9499414 DOI: 10.3390/ijms231810263] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 08/29/2022] [Indexed: 11/25/2022] Open
Abstract
Tumor cells are well adapted to grow in conditions of variable oxygen supply and hypoxia by switching between different metabolic pathways. However, the regulatory effect of oxygen on metabolism and its contribution to the metabolic heterogeneity of tumors have not been fully explored. In this study, we develop a methodology for the simultaneous analysis of cellular metabolic status, using the fluorescence lifetime imaging microscopy (FLIM) of metabolic cofactor NAD(P)H, and oxygen level, using the phosphorescence lifetime imaging (PLIM) of a new polymeric Ir(III)-based sensor (PIr3) in tumors in vivo. The sensor, derived from a polynorbornene and cyclometalated iridium(III) complex, exhibits the oxygen-dependent quenching of phosphorescence with a 40% longer lifetime in degassed compared to aerated solutions. In vitro, hypoxia resulted in a correlative increase in PIr3 phosphorescence lifetime and free (glycolytic) NAD(P)H fraction in cells. In vivo, mouse tumors demonstrated a high degree of cellular-level heterogeneity of both metabolic and oxygen states, and a lower dependence of metabolism on oxygen than cells in vitro. The small tumors were hypoxic, while the advanced tumors contained areas of normoxia and hypoxia, which was consistent with the pimonidazole assay and angiographic imaging. Dual FLIM/PLIM metabolic/oxygen imaging will be valuable in preclinical investigations into the effects of hypoxia on metabolic aspects of tumor progression and treatment response.
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4
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Senkovenko AM, Moysenovich AM, Maslakova AA, Pavlova ER, Bagrov DV. Measurements of IgG Antibodies Adsorption onto Electrospun Nylon-6 Membranes. Biophysics (Nagoya-shi) 2022. [DOI: 10.1134/s0006350922030198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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5
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Zhao C, Pan B, Wang M, Si Y, Taha AY, Liu G, Pan T, Sun G. Improving the Sensitivity of Nanofibrous Membrane-Based ELISA for On-Site Antibiotics Detection. ACS Sens 2022; 7:1458-1466. [PMID: 35426310 DOI: 10.1021/acssensors.2c00208] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An ultrasensitive and portable colorimetric enzyme-linked immunosorbent assay (ELISA) sensor for antibiotics was fabricated by immobilizing antibodies inside the largely porous and highly hydrophilic nanofibrous membranes. Different from regular electrospun nanofibrous membranes where antibodies may frequently be blocked by the heterogeneous porous structure and sterically crowded loaded on the surface, the controlled microporous structure and increased hydrophilicity of nanofibrous membranes could improve the diffusion properties of antibodies, reduce the sterically crowding effect, and dramatically improve the sensitivity of the membrane-based ELISA. The limitation of detection (LOD) for chloramphenicol (CAP) reached 0.005 ng/mL, around 200 times lower than the conventional paper-based ELISA, making quantitative analysis and portable on-site detection achievable via the use of smartphones. The successful design and fabrication of the nanofibrous membrane-based ELISA with novel features overcome the structural drawbacks of regular electrospun nanofibrous membranes and provide new paths to develop highly sensitive on-site detection of hazardous chemical agents.
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Affiliation(s)
- Cunyi Zhao
- Department of Biological and Agricultural Engineering, University of California, Davis, California 95616, United States
| | - Bofeng Pan
- Department of Biological and Agricultural Engineering, University of California, Davis, California 95616, United States
| | - Minyuan Wang
- Agricultural and Environmental Chemistry Graduate Group, University of California, Davis, California 95616, United States
| | - Yang Si
- Innovation Center for Textile Science and Technology, College of Textiles, Donghua University, Shanghai 201620, China
| | - Ameer Y Taha
- Department of Food Science and Technology, University of California, Davis, California 95616, United States
| | - Gangyu Liu
- Agricultural and Environmental Chemistry Graduate Group, University of California, Davis, California 95616, United States
- Department of Chemistry, University of California, Davis, California 95616, United States
| | - Tingrui Pan
- Suzhou Institute for Advanced Research, University of Science and Technology of China, Suzhou 215123, China
| | - Gang Sun
- Department of Biological and Agricultural Engineering, University of California, Davis, California 95616, United States
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6
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Rud OV, Kazakov AD, Nova L, Uhlik F. Polyelectrolyte Hydrogels as Draw Agents for Desalination of Solutions with Multivalent Ions. Macromolecules 2022. [DOI: 10.1021/acs.macromol.1c02266] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Oleg V. Rud
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University in Prague, Hlavova 8, Praha 2 128 00, Czech Republic
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoy pr. 31, 199004 Saint-Petersburg, Russia
| | - Alexander D. Kazakov
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University in Prague, Hlavova 8, Praha 2 128 00, Czech Republic
| | - Lucie Nova
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University in Prague, Hlavova 8, Praha 2 128 00, Czech Republic
| | - Filip Uhlik
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University in Prague, Hlavova 8, Praha 2 128 00, Czech Republic
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7
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Pavlova E, Maslakova A, Prusakov K, Bagrov D. Optical sensors based on electrospun membranes – principles, applications, and prospects for chemistry and biology. NEW J CHEM 2022. [DOI: 10.1039/d2nj01821g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Electrospun membranes are promising substrates for receptor layer immobilization in optical sensors. Either colorimetric, luminescence, or Raman scattering signal can be used to detect the analyte.
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Affiliation(s)
- Elizaveta Pavlova
- Lomonosov Moscow State University, Faculty of Biology, Leninskie Gory 1-12, 119234, Moscow, Russian Federation
- Federal Research Clinical Center of Physical–Chemical Medicine of the Federal Medical and Biological Agency of Russia, 1a Malaya Pirogovskaya Street, 119435, Moscow, Russian Federation
| | - Aitsana Maslakova
- Lomonosov Moscow State University, Faculty of Biology, Leninskie Gory 1-12, 119234, Moscow, Russian Federation
| | - Kirill Prusakov
- Lomonosov Moscow State University, Faculty of Biology, Leninskie Gory 1-12, 119234, Moscow, Russian Federation
- Federal Research Clinical Center of Physical–Chemical Medicine of the Federal Medical and Biological Agency of Russia, 1a Malaya Pirogovskaya Street, 119435, Moscow, Russian Federation
| | - Dmitry Bagrov
- Lomonosov Moscow State University, Faculty of Biology, Leninskie Gory 1-12, 119234, Moscow, Russian Federation
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8
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Bochkarev LN, Parshina YP, Gracheva YV, Kovylina TA, Lermontova SA, Klapshina LG, Konev AN, Lopatin MA, Lukina MM, Komarova AD, Shcheslavskiy VI, Shirmanova MV. Red Light-Emitting Water-Soluble Luminescent Iridium-Containing Polynorbornenes: Synthesis, Characterization and Oxygen Sensing Properties in Biological Tissues In Vivo. Molecules 2021; 26:6349. [PMID: 34770757 PMCID: PMC8587708 DOI: 10.3390/molecules26216349] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 10/12/2021] [Accepted: 10/18/2021] [Indexed: 11/16/2022] Open
Abstract
New water-soluble polynorbornenes P1-P4 containing oligoether, amino acid groups and luminophoric complexes of iridium(III) were synthesized by ring-opening metathesis polymerization. The polymeric products in organic solvents and in water demonstrate intense photoluminescence in the red spectral region. The polymers P1 and P3 with 1-phenylisoquinoline cyclometalating ligands in iridium fragments reveal 4-6 fold higher emission quantum yields in solutions than those of P2 and P4 that contain iridium complexes with 1-(thien-2-yl)isoquinoline cyclometalating ligands. The emission parameters of P1-P4 in degassed solutions essentially differ from those in the aerated solutions showing oxygen-dependent quenching of phosphorescence. Biological testing of P1 and P3 demonstrates that the polymers do not penetrate into live cultured cancer cells and normal skin fibroblasts and do not possess cytotoxicity within the concentrations and time ranges reasonable for biological studies. In vivo, the polymers display longer phosphorescence lifetimes in mouse tumors than in muscle, as measured using phosphorescence lifetime imaging (PLIM), which correlates with tumor hypoxia. Therefore, preliminary evaluation of the synthesized polymers shows their suitability for noninvasive in vivo assessments of oxygen levels in biological tissues.
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Affiliation(s)
- Leonid N. Bochkarev
- Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, Tropinina, 49, 603950 Nizhny Novgorod, Russia; (Y.P.P.); (Y.V.G.); (T.A.K.); (S.A.L.); (L.G.K.); (A.N.K.); (M.A.L.)
| | - Yulia P. Parshina
- Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, Tropinina, 49, 603950 Nizhny Novgorod, Russia; (Y.P.P.); (Y.V.G.); (T.A.K.); (S.A.L.); (L.G.K.); (A.N.K.); (M.A.L.)
| | - Yana V. Gracheva
- Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, Tropinina, 49, 603950 Nizhny Novgorod, Russia; (Y.P.P.); (Y.V.G.); (T.A.K.); (S.A.L.); (L.G.K.); (A.N.K.); (M.A.L.)
| | - Tatyana A. Kovylina
- Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, Tropinina, 49, 603950 Nizhny Novgorod, Russia; (Y.P.P.); (Y.V.G.); (T.A.K.); (S.A.L.); (L.G.K.); (A.N.K.); (M.A.L.)
| | - Svetlana A. Lermontova
- Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, Tropinina, 49, 603950 Nizhny Novgorod, Russia; (Y.P.P.); (Y.V.G.); (T.A.K.); (S.A.L.); (L.G.K.); (A.N.K.); (M.A.L.)
| | - Larisa G. Klapshina
- Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, Tropinina, 49, 603950 Nizhny Novgorod, Russia; (Y.P.P.); (Y.V.G.); (T.A.K.); (S.A.L.); (L.G.K.); (A.N.K.); (M.A.L.)
| | - Aleksey N. Konev
- Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, Tropinina, 49, 603950 Nizhny Novgorod, Russia; (Y.P.P.); (Y.V.G.); (T.A.K.); (S.A.L.); (L.G.K.); (A.N.K.); (M.A.L.)
| | - Mikhail A. Lopatin
- Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, Tropinina, 49, 603950 Nizhny Novgorod, Russia; (Y.P.P.); (Y.V.G.); (T.A.K.); (S.A.L.); (L.G.K.); (A.N.K.); (M.A.L.)
| | - Maria M. Lukina
- Institute of Experimental Oncology and Biomedical Technologies, Privolzhsky Research Medical University, Minin and Pozharsky Sq. 10/1, 603005 Nizhny Novgorod, Russia; (M.M.L.); (A.D.K.); (V.I.S.); (M.V.S.)
| | - Anastasia D. Komarova
- Institute of Experimental Oncology and Biomedical Technologies, Privolzhsky Research Medical University, Minin and Pozharsky Sq. 10/1, 603005 Nizhny Novgorod, Russia; (M.M.L.); (A.D.K.); (V.I.S.); (M.V.S.)
| | - Vladislav I. Shcheslavskiy
- Institute of Experimental Oncology and Biomedical Technologies, Privolzhsky Research Medical University, Minin and Pozharsky Sq. 10/1, 603005 Nizhny Novgorod, Russia; (M.M.L.); (A.D.K.); (V.I.S.); (M.V.S.)
- Becker&Hickl GmbH, Nunsdorfer Ring 7-9, 12277 Berlin, Germany
| | - Marina V. Shirmanova
- Institute of Experimental Oncology and Biomedical Technologies, Privolzhsky Research Medical University, Minin and Pozharsky Sq. 10/1, 603005 Nizhny Novgorod, Russia; (M.M.L.); (A.D.K.); (V.I.S.); (M.V.S.)
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9
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Taskin MB, Ahmad T, Wistlich L, Meinel L, Schmitz M, Rossi A, Groll J. Bioactive Electrospun Fibers: Fabrication Strategies and a Critical Review of Surface-Sensitive Characterization and Quantification. Chem Rev 2021; 121:11194-11237. [DOI: 10.1021/acs.chemrev.0c00816] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Mehmet Berat Taskin
- Department of Functional Materials in Medicine and Dentistry and Bavarian Polymer Institute, University of Würzburg, 97070 Würzburg, Germany
| | - Taufiq Ahmad
- Department of Functional Materials in Medicine and Dentistry and Bavarian Polymer Institute, University of Würzburg, 97070 Würzburg, Germany
| | - Laura Wistlich
- Department of Functional Materials in Medicine and Dentistry and Bavarian Polymer Institute, University of Würzburg, 97070 Würzburg, Germany
| | - Lorenz Meinel
- Institute of Pharmacy and Food Chemistry and Helmholtz Institute for RNA Based Infection Research, 97074 Würzburg, Germany
| | - Michael Schmitz
- Department of Functional Materials in Medicine and Dentistry and Bavarian Polymer Institute, University of Würzburg, 97070 Würzburg, Germany
| | - Angela Rossi
- Department of Functional Materials in Medicine and Dentistry and Bavarian Polymer Institute, University of Würzburg, 97070 Würzburg, Germany
| | - Jürgen Groll
- Department of Functional Materials in Medicine and Dentistry and Bavarian Polymer Institute, University of Würzburg, 97070 Würzburg, Germany
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10
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Gürel-Gökmen B, Taslak HD, Özcan O, İpar N, Tunali-Akbay T. Polycaprolactone/silk fibroin electrospun nanofibers-based lateral flow test strip for quick and facile determination of bisphenol A in breast milk. J Biomed Mater Res B Appl Biomater 2021; 109:1455-1464. [PMID: 33501724 DOI: 10.1002/jbm.b.34805] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Revised: 12/13/2020] [Accepted: 01/09/2021] [Indexed: 01/06/2023]
Abstract
This study aimed to develop a sensitive lateral flow test strip for the detection of bisphenol A (BPA) in breast milk. Conventional nitrocellulose test membrane was coated with the coaxial nanofiber, consisting of the inner polycaprolactone (PCL) and the outer PCL/silk fibroin (SF) mixture, to decrease the flow rate of the breast milk in the lateral flow assay (LFA). The nanofiber was prepared by using coaxial electrospinning, and BPA antibody was immobilized physically to the nanofiber. This nanofiber was used as a test membrane in the LFA. Color changes on the test membrane were evaluated as the signal intensity of the BPA. Breast milk creates a background on surfaces due to its structural properties. This background was detected by comparing the signal intensity with the signal intensity of water. The higher signal intensity was found in water samples when compared to breast milk samples. Although the detection limit is 2 ng/ml in both coaxial PCL/SF nanofiber and nitrocellulose (NC) test membranes, the color intensity increased with the increasing BPA concentration in the coaxial PCL/SF nanofiber. As a new dimension, the coaxial PCL/SF nanofiber provided higher color intensity than the NC membrane. In conclusion, a sensitive onsite method was developed for the detection of BPA in breast milk by using new coaxial PCL/SF nanofiber as a test membrane in LFA.
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Affiliation(s)
- Begüm Gürel-Gökmen
- Faculty of Dentistry, Department of Biochemistry, Marmara University, İstanbul, Turkey
| | - Hava Dudu Taslak
- Faculty of Dentistry, Department of Biochemistry, Marmara University, İstanbul, Turkey
| | - Ozan Özcan
- Faculty of Dentistry, Department of Biochemistry, Marmara University, İstanbul, Turkey
| | - Necla İpar
- Department of Pediatrics, Koc University Hospital, İstanbul, Turkey
| | - Tuğba Tunali-Akbay
- Faculty of Dentistry, Department of Biochemistry, Marmara University, İstanbul, Turkey
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11
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Bochkarev LN, Platonova EO, Lermontova SA, Klapshina LG, Konev AN, Abakumov GA. Iridium-Containing Polymers Based on Norbornene and 7-Oxa-norbornene Monomers: Synthesis and Photophysical and Biological Properties. POLYMER SCIENCE SERIES C 2019. [DOI: 10.1134/s1811238219010041] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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12
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Liu L, Hao Y, Deng D, Xia N. Nanomaterials-Based Colorimetric Immunoassays. NANOMATERIALS 2019; 9:nano9030316. [PMID: 30818816 PMCID: PMC6473401 DOI: 10.3390/nano9030316] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 02/14/2019] [Accepted: 02/18/2019] [Indexed: 01/05/2023]
Abstract
Colorimetric immunoassays for tumor marker detection have attracted considerable attention due to their simplicity and high efficiency. With the achievements of nanotechnology and nanoscience, nanomaterials-based colorimetric immunoassays have been demonstrated to be promising alternatives to conventional colorimetric enzyme-linked immunoassays. This review is focused on the progress in colorimetric immunoassays with the signal amplification of nanomaterials, including nanomaterials-based artificial enzymes to catalyze the chromogenic reactions, analyte-induced aggregation or size/morphology change of nanomaterials, nanomaterials as the carriers for loading enzyme labels, and chromogenic reactions induced by the constituent elements released from nanomaterials.
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Affiliation(s)
- Lin Liu
- Henan Province of Key Laboratory of New Optoelectronic Functional Materials, Anyang Normal University, Anyang 455000, China.
- Henan Key Laboratory of Biomolecular Recognition and Sensing, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu 476000, China.
| | - Yuanqiang Hao
- Henan Key Laboratory of Biomolecular Recognition and Sensing, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu 476000, China.
| | - Dehua Deng
- Henan Province of Key Laboratory of New Optoelectronic Functional Materials, Anyang Normal University, Anyang 455000, China.
| | - Ning Xia
- Henan Province of Key Laboratory of New Optoelectronic Functional Materials, Anyang Normal University, Anyang 455000, China.
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13
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Wongkaew N. Nanofiber-integrated miniaturized systems: an intelligent platform for cancer diagnosis. Anal Bioanal Chem 2019; 411:4251-4264. [PMID: 30706075 DOI: 10.1007/s00216-019-01589-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2018] [Revised: 12/26/2018] [Accepted: 01/07/2019] [Indexed: 12/19/2022]
Abstract
Cancer diagnostic tools enabling screening, diagnosis, and effective disease management are essential elements to increase the survival rate of diagnosed patients. Low abundance of cancer markers present in large amounts of interferences remains the major issue. Moreover, current diagnostic technologies are restricted to high-resourced settings only. Integrating nanofibers into miniaturized analytical systems holds a significant promise to address these challenges as demonstrated by recent publications. A large surface area, three-dimensional porous network, and diverse range of functional chemistries make nanofibers an excellent candidate as immobilization support and/or transduction elements, enabling high capture yield and ultrasensitive detection in miniaturized devices. Functional nanofibers have thus been used to isolate and detect various cancer-related biomarkers with a high degree of success in both on-chip and off-chip platforms. In fact, the chemical and functional adaptability of nanofibers has been exploited to address the technical challenges unique to each of the cancer markers in body fluids, where circulating tumor cells are prominently investigated among others (proteins, nucleic acids, and exosomes). So far, none of the work has exploited the nanofibers for cancer-derived exosomes, opening an avenue for further research effort. The trend and future prospects signal possibilities to strengthen the implementation of nanofiber-miniaturized system hybrid for a next generation of cancer diagnostic platforms both in clinical and point-of-care testing.
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Affiliation(s)
- Nongnoot Wongkaew
- Institute of Analytical Chemistry, Chemo- and Biosensors, University of Regensburg, Universitaetsstrasse 31, 93053, Regensburg, Germany.
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14
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Huang R, Zhang K, Zhu G, Sun Z, He S, Chen W. Blocking-Free ELISA Using a Gold Nanoparticle Layer Coated Commercial Microwell Plate. SENSORS (BASEL, SWITZERLAND) 2018; 18:E3537. [PMID: 30347684 PMCID: PMC6210089 DOI: 10.3390/s18103537] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Revised: 10/12/2018] [Accepted: 10/16/2018] [Indexed: 12/28/2022]
Abstract
Enzyme-linked immunosorbent assays (ELISA) show extensive application in immunoassays, to detect and monitor protein biomarkers in clinical diagnosis. Nevertheless, the time required and its multiple steps limit its application. We take advantage of a polyethyleneimine (PEI) gold nanoparticle (GNP) coated microwell plate to perform blocking-free ELISA, in which no nonspecific protein adsorption appears on the GNP layer. If the PEI-GNP coated microwell plate and immobilization of captured antibodies on the plate are prepared in advance, such as using an ELISA kit, the whole ELISA process can be finished in less than 2 h. Meanwhile, we have ensured that the GNP layer can preserve the precision and good linearity of ELISA without causing negative effects on the plate.
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Affiliation(s)
- Ruijia Huang
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Shenzhen University Health Science Center, Shenzhen 518060, China.
| | - Ke Zhang
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Shenzhen University Health Science Center, Shenzhen 518060, China.
| | - Guoshuai Zhu
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Shenzhen University Health Science Center, Shenzhen 518060, China.
| | - Zhencheng Sun
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Shenzhen University Health Science Center, Shenzhen 518060, China.
| | - Songliang He
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Shenzhen University Health Science Center, Shenzhen 518060, China.
| | - Wenwen Chen
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Shenzhen University Health Science Center, Shenzhen 518060, China.
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15
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Platonova EO, Rozhkov AV, Lermontova SA, Klapshina LG, Konev AN, Bochkarev LN, Abakumov GA. Functionalized Polynorbornenes with Oligoether Units and Luminophoric Iridium(III) Complexes in Side Chains. Synthesis, Photophysical, and Biological Properties. RUSS J GEN CHEM+ 2018. [DOI: 10.1134/s1070363218040175] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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16
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Cengiz N, Gevrek TN, Sanyal R, Sanyal A. Orthogonal thiol-ene 'click' reactions: a powerful combination for fabrication and functionalization of patterned hydrogels. Chem Commun (Camb) 2018; 53:8894-8897. [PMID: 28740993 DOI: 10.1039/c7cc02298k] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A combination of 'orthogonal' thiol-ene 'click' reactions is utilized for fabrication and functionalization of micro-patterned hydrogels. A furan-protected maleimide-containing parent copolymer is partially activated via the retro Diels-Alder reaction to obtain an 'orthogonally' functionalizable copolymer, where the different functional groups can be exploited for multi-functionalization or fabrication of functional hydrogels using combination of the nucleophilic and radical thiol-ene reactions.
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Affiliation(s)
- N Cengiz
- Department of Chemistry, Bogazici University, 34342 Bebek, Istanbul, Turkey.
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17
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Kalaoglu-Altan OI, Kirac-Aydin A, Sumer Bolu B, Sanyal R, Sanyal A. Diels–Alder “Clickable” Biodegradable Nanofibers: Benign Tailoring of Scaffolds for Biomolecular Immobilization and Cell Growth. Bioconjug Chem 2017; 28:2420-2428. [DOI: 10.1021/acs.bioconjchem.7b00411] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Ozlem Ipek Kalaoglu-Altan
- Department of Chemistry and ‡Center for Life Sciences and Technologies, Bogazici University,
Bebek 34342, Istanbul, Turkey
| | - Azize Kirac-Aydin
- Department of Chemistry and ‡Center for Life Sciences and Technologies, Bogazici University,
Bebek 34342, Istanbul, Turkey
| | - Burcu Sumer Bolu
- Department of Chemistry and ‡Center for Life Sciences and Technologies, Bogazici University,
Bebek 34342, Istanbul, Turkey
| | - Rana Sanyal
- Department of Chemistry and ‡Center for Life Sciences and Technologies, Bogazici University,
Bebek 34342, Istanbul, Turkey
| | - Amitav Sanyal
- Department of Chemistry and ‡Center for Life Sciences and Technologies, Bogazici University,
Bebek 34342, Istanbul, Turkey
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Sapountzi E, Braiek M, Chateaux JF, Jaffrezic-Renault N, Lagarde F. Recent Advances in Electrospun Nanofiber Interfaces for Biosensing Devices. SENSORS (BASEL, SWITZERLAND) 2017; 17:E1887. [PMID: 28813013 PMCID: PMC5579928 DOI: 10.3390/s17081887] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Revised: 08/11/2017] [Accepted: 08/13/2017] [Indexed: 01/08/2023]
Abstract
Electrospinning has emerged as a very powerful method combining efficiency, versatility and low cost to elaborate scalable ordered and complex nanofibrous assemblies from a rich variety of polymers. Electrospun nanofibers have demonstrated high potential for a wide spectrum of applications, including drug delivery, tissue engineering, energy conversion and storage, or physical and chemical sensors. The number of works related to biosensing devices integrating electrospun nanofibers has also increased substantially over the last decade. This review provides an overview of the current research activities and new trends in the field. Retaining the bioreceptor functionality is one of the main challenges associated with the production of nanofiber-based biosensing interfaces. The bioreceptors can be immobilized using various strategies, depending on the physical and chemical characteristics of both bioreceptors and nanofiber scaffolds, and on their interfacial interactions. The production of nanobiocomposites constituted by carbon, metal oxide or polymer electrospun nanofibers integrating bioreceptors and conductive nanomaterials (e.g., carbon nanotubes, metal nanoparticles) has been one of the major trends in the last few years. The use of electrospun nanofibers in ELISA-type bioassays, lab-on-a-chip and paper-based point-of-care devices is also highly promising. After a short and general description of electrospinning process, the different strategies to produce electrospun nanofiber biosensing interfaces are discussed.
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Affiliation(s)
- Eleni Sapountzi
- Université Lyon, CNRS, Université Claude Bernard Lyon 1, ENS de Lyon, Institute of Analytical Sciences, UMR 5280, 5 Rue la Doua, F-69100 Villeurbanne, France.
| | - Mohamed Braiek
- Université Lyon, CNRS, Université Claude Bernard Lyon 1, ENS de Lyon, Institute of Analytical Sciences, UMR 5280, 5 Rue la Doua, F-69100 Villeurbanne, France.
- Laboratoire des Interfaces et des Matériaux Avancés, Faculté des Sciences de Monastir, Avenue de l'Environnement, University of Monastir, Monastir 5019, Tunisia.
| | - Jean-François Chateaux
- Université Lyon, Université Claude Bernard Lyon 1, CNRS, Institut des Nanotechnologies de Lyon, UMR5270, Bâtiment Léon Brillouin, 6, rue Ada Byron, F-69622 Villeurbanne CEDEX, France.
| | - Nicole Jaffrezic-Renault
- Université Lyon, CNRS, Université Claude Bernard Lyon 1, ENS de Lyon, Institute of Analytical Sciences, UMR 5280, 5 Rue la Doua, F-69100 Villeurbanne, France.
| | - Florence Lagarde
- Université Lyon, CNRS, Université Claude Bernard Lyon 1, ENS de Lyon, Institute of Analytical Sciences, UMR 5280, 5 Rue la Doua, F-69100 Villeurbanne, France.
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