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Ortega PFR, Galvão BRL, de Oliveira PSC, Bastos GAA, Bernardes MRF, Lavall RL, Trigueiro JPC. Thermochromism in Polydiacetylene/Poly(vinyl alcohol) Hydrogels Obtained by the Freeze–Thaw Method: A Theoretical and Experimental Study. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c01783] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Paulo F. R. Ortega
- Departamento de Química, Centro Federal de Educação Tecnológica de Minas Gerais, Av. Amazonas, 5253-Nova Suíça, CEP 30421-5169 Belo Horizonte, Minas Gerais, Brazil
| | - Breno R. L. Galvão
- Departamento de Química, Centro Federal de Educação Tecnológica de Minas Gerais, Av. Amazonas, 5253-Nova Suíça, CEP 30421-5169 Belo Horizonte, Minas Gerais, Brazil
| | - Pedro S. C. de Oliveira
- Departamento de Química/ICEx, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Pampulha, CEP 31270-901 Belo Horizonte, Minas Gerais, Brazil
| | - Grasielli A. A. Bastos
- Departamento de Química/ICEx, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Pampulha, CEP 31270-901 Belo Horizonte, Minas Gerais, Brazil
| | - Matheus R. F. Bernardes
- Departamento de Química/ICEx, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Pampulha, CEP 31270-901 Belo Horizonte, Minas Gerais, Brazil
| | - Rodrigo L. Lavall
- Departamento de Química/ICEx, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Pampulha, CEP 31270-901 Belo Horizonte, Minas Gerais, Brazil
| | - João P. C. Trigueiro
- Instituto Federal de Educação, Ciência e Tecnologia de Minas Gerais—Campus Betim, Rua Itaguaçu, 595, São Caetano, CEP 32677-562 Betim, Minas Gerais, Brazil
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A proposed mechanism to induce multi-layer polydiacetylene-coated filter color response to bacteria. RESULTS IN CHEMISTRY 2020. [DOI: 10.1016/j.rechem.2020.100065] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Phospholipid/Polydiacetylene Vesicle-Based Colorimetric Assay for High-Throughput Screening of Bacteriocins and Halocins. Appl Biochem Biotechnol 2016; 182:142-154. [PMID: 27844338 DOI: 10.1007/s12010-016-2316-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Accepted: 10/30/2016] [Indexed: 12/20/2022]
Abstract
The colorimetric assay is phospholipid/polydiacetylene vesicle-based assay used for the detection of membrane-acting peptides. Bacteriocins and halocins are antimicrobial peptides known to kill target cells by membrane disruption. Therefore, the assay was applied for high-throughput (HTP) screening of bacteriocins and halocins produced by lactic acid bacteria and haloarchaea, respectively. The assay consisted of vesicles which were synthesized using four different phospholipids: dipalmitoylphosphatydilcholine (DPPC), dimyristoylphosphatidylcholine (DMPC), dimyristoylphosphoethanolamine (DMPE) and dimyristoylphosphatidylglycerol (DMPG) in combination with diacetylene monomer 10,12-tricosadiy noic acid (TRCDA). These vesicles demonstrated blue colour at 640 nm and turned pink/red after interaction with nisin. DMPE/TRCDA vesicles showed pink colour with the highest colorimetric response (CR %) after treatment with nisin and, therefore, selected for the screening of bacteriocins and halocins. The colour of the vesicles was changed within 5 min in the presence of 5 μM nisin suggesting the sensitivity of assay. The assay was applied on 54 strains of lactic acid bacteria (LAB) and 53 haloarchaea for screening of bacteriocins and halocins, respectively. Out of these strains, three strains of LAB and five strains of haloarchaea were found to be bacteriocin and halocin non-producer, respectively. The other strains demonstrated the presence of bacteriocins and halocins. The colorimetric assay was found to be rapid, specific and reliable for HTP screening of antimicrobial peptides such as bacteriocins and halocins from producer strains isolated from various natural resources.
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Li X, Zhao Z, Pan C. Ionic liquid-assisted electrochemical exfoliation of carbon dots of different size for fluorescent imaging of bacteria by tuning the water fraction in electrolyte. Mikrochim Acta 2016; 183:2525-2532. [PMID: 27546906 PMCID: PMC4977338 DOI: 10.1007/s00604-016-1877-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Accepted: 05/18/2016] [Indexed: 11/28/2022]
Abstract
An electrochemical approach is introduced for synthesis of carbon dots (CDs) by exfoliating graphite rods at a voltage of 15 V in an electrolyte consisting of a mixture of water and two ionic liquids. It is found that the size of the CDs can be tuned by varying the fraction of water in the mixed electrolyte; CDs in sizes of 4.9, 4.1 and 3.1 nm are obtained if the electrolyte contains water in fractions of 24, 38 and 56 %, respectively. The CDs have a quantum yield of almost 10 % and display the typical excitation wavelength-dependent maxima of photoluminescence, strongest at excitation/emission wavelengths of 360/440 nm. Fourier transform infrared and X-ray photoelectron spectroscopy show the CDs to have oxygen functional groups on their surface which strongly improve solubility. The CDs were applied to image cells of the electricity-producing bacteria Shewanellaoneidensis MR-1. Graphical AbstractAn electrochemical approach is introduced to synthesize carbon dots by exfoliating graphite rods in mixed electrolyte of water and ionic liquids. The increasing size of carbon dots was realized by reducing the volume of water in the mixed electrolyte. The carbon dots were used to fluorescently image the electricity-producing bacterium Shewanellaoneidensis MR-1.
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Affiliation(s)
- Xuehua Li
- School of Electronic Science and Engineering, Southeast University, Nanjing, 210096 People’s Republic of China
| | - Zhiwei Zhao
- School of Electronic Science and Engineering, Southeast University, Nanjing, 210096 People’s Republic of China
| | - Chen Pan
- School of Electronic Science and Engineering, Southeast University, Nanjing, 210096 People’s Republic of China
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Kahveci Z, Vázquez-Guilló R, Mira A, Martinez L, Falcó A, Mallavia R, Mateo CR. Selective recognition and imaging of bacterial model membranes over mammalian ones by using cationic conjugated polyelectrolytes. Analyst 2016; 141:6287-6296. [DOI: 10.1039/c6an01427e] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
This work describes the use of cationic polyfluorenes as fluorescent markers to selectively recognize bacterial membranes.
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Affiliation(s)
- Z. Kahveci
- Instituto de Biología Molecular y Celular
- Universidad Miguel Hernández
- 03202 Elche
- Spain
| | - R. Vázquez-Guilló
- Instituto de Biología Molecular y Celular
- Universidad Miguel Hernández
- 03202 Elche
- Spain
| | - A. Mira
- Instituto de Biología Molecular y Celular
- Universidad Miguel Hernández
- 03202 Elche
- Spain
| | - L. Martinez
- Instituto de Biología Molecular y Celular
- Universidad Miguel Hernández
- 03202 Elche
- Spain
| | - A. Falcó
- Instituto de Biología Molecular y Celular
- Universidad Miguel Hernández
- 03202 Elche
- Spain
| | - R. Mallavia
- Instituto de Biología Molecular y Celular
- Universidad Miguel Hernández
- 03202 Elche
- Spain
| | - C. R. Mateo
- Instituto de Biología Molecular y Celular
- Universidad Miguel Hernández
- 03202 Elche
- Spain
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Abstract
Amphiphilic carbon dots employed for detection and visualization of bacterial cells and distinguishing among different bacterial strains.
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Affiliation(s)
- Sukhendu Nandi
- Department of Chemistry
- Ben Gurion University of the Negev
- Beer Sheva 84105
- Israel
| | - Margarita Ritenberg
- Department of Chemistry
- Ben Gurion University of the Negev
- Beer Sheva 84105
- Israel
| | - Raz Jelinek
- Department of Chemistry
- Ben Gurion University of the Negev
- Beer Sheva 84105
- Israel
- Ilse Katz Institute for Nanotechnology
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Gopinath SC, Tang TH, Chen Y, Citartan M, Lakshmipriya T. Bacterial detection: From microscope to smartphone. Biosens Bioelectron 2014; 60:332-42. [DOI: 10.1016/j.bios.2014.04.014] [Citation(s) in RCA: 119] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2013] [Revised: 03/13/2014] [Accepted: 04/07/2014] [Indexed: 01/15/2023]
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8
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Hussain M, Wackerlig J, Lieberzeit PA. Biomimetic strategies for sensing biological species. BIOSENSORS 2013; 3:89-107. [PMID: 25587400 PMCID: PMC4263596 DOI: 10.3390/bios3010089] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/24/2012] [Revised: 01/24/2013] [Accepted: 02/01/2013] [Indexed: 02/07/2023]
Abstract
The starting point of modern biosensing was the application of actual biological species for recognition. Increasing understanding of the principles underlying such recognition (and biofunctionality in general), however, has triggered a dynamic field in chemistry and materials sciences that aims at joining the best of two worlds by combining concepts derived from nature with the processability of manmade materials, e.g., sensitivity and ruggedness. This review covers different biomimetic strategies leading to highly selective (bio)chemical sensors: the first section covers molecularly imprinted polymers (MIP) that attempt to generate a fully artificial, macromolecular mold of a species in order to detect it selectively. A different strategy comprises of devising polymer coatings to change the biocompatibility of surfaces that can also be used to immobilized natural receptors/ligands and thus stabilize them. Rationally speaking, this leads to self-assembled monolayers closely resembling cell membranes, sometimes also including bioreceptors. Finally, this review will highlight some approaches to generate artificial analogs of natural recognition materials and biomimetic approaches in nanotechnology. It mainly focuses on the literature published since 2005.
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Affiliation(s)
- Munawar Hussain
- Department of Analytical Chemistry, University of Vienna, Waehringer Strasse 38, A-1090, Vienna, Austria; E-Mails: (M.H.); (J.W.)
| | - Judith Wackerlig
- Department of Analytical Chemistry, University of Vienna, Waehringer Strasse 38, A-1090, Vienna, Austria; E-Mails: (M.H.); (J.W.)
| | - Peter A Lieberzeit
- Department of Analytical Chemistry, University of Vienna, Waehringer Strasse 38, A-1090, Vienna, Austria; E-Mails: (M.H.); (J.W.)
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Ritenberg M, Kolusheva S, Ganin H, Meijler MM, Jelinek R. Biofilm Formation on Chromatic Sol-Gel/Polydiacetylene Films. Chempluschem 2012. [DOI: 10.1002/cplu.201200088] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Zhu C, Liu L, Yang Q, Lv F, Wang S. Water-soluble conjugated polymers for imaging, diagnosis, and therapy. Chem Rev 2012; 112:4687-735. [PMID: 22670807 DOI: 10.1021/cr200263w] [Citation(s) in RCA: 843] [Impact Index Per Article: 70.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Chunlei Zhu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
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Demikhovsky Y, Kolusheva S, Geyzer M, Jelinek R. Polydiacetylene-supported silica films formed at the air/water interface. J Colloid Interface Sci 2011; 364:428-34. [DOI: 10.1016/j.jcis.2011.08.078] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2011] [Revised: 08/27/2011] [Accepted: 08/28/2011] [Indexed: 10/17/2022]
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Anzenbacher P, Liu YL, Kozelkova ME. Hydrophilic polymer matrices in optical array sensing. Curr Opin Chem Biol 2010; 14:693-704. [DOI: 10.1016/j.cbpa.2010.08.011] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2010] [Revised: 08/05/2010] [Accepted: 08/06/2010] [Indexed: 10/19/2022]
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Lee K, Povlich LK, Kim J. Recent advances in fluorescent and colorimetric conjugated polymer-based biosensors. Analyst 2010; 135:2179-89. [DOI: 10.1039/c0an00239a] [Citation(s) in RCA: 146] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Jung YK, Kim TW, Jung C, Cho DY, Park HG. A polydiacetylene microchip based on a biotin-streptavidin interaction for the diagnosis of pathogen infections. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2008; 4:1778-1784. [PMID: 18819132 DOI: 10.1002/smll.200800947] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
A micropatterned polydiacetylene (PDA) chip, utilizing the unique fluorogenic property of PDA and a specific biotin-streptavidin (STA) interaction, is constructed to detect pathogen infections. To construct the PDA chip, biotin-modified diacetylene liposomes are immobilized on aldehyde glass and conjugated with STA, followed by UV irradiation to polymerize the STA-functionalized diacetylene liposomes. Genomic DNA of a model pathogen, Chlamydia trachomatis, is isolated from human samples and biotin-labeled target DNA is obtained through PCR amplification using biotin-11-dUTP. Owing to the stimulus caused by the biotin-STA interaction, the biotinylated DNA induces an intense fluorescence signal on the immobilized PDA. By using this strategy, it is possible to diagnose Chlamydia infections by applying DNA samples from several nonhealthy humans to a single PDA chip. The results of this study serve as the basis for a new strategy for fluorogenic PDA microarray-based diagnosis of pathogen infections.
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Affiliation(s)
- Yun Kyung Jung
- Department of Chemical and Biomolecular Engineering (BK 21 Program), KAIST, Daejeon 305-701, Korea
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