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Wechsler D, Fernández CC, Köbl J, Augustin LM, Stumm C, Jux N, Steinrück HP, Williams FJ, Lytken O. Wet-Chemically Prepared Porphyrin Layers on Rutile TiO 2(110). Molecules 2021; 26:molecules26102871. [PMID: 34066129 PMCID: PMC8150575 DOI: 10.3390/molecules26102871] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 05/07/2021] [Accepted: 05/07/2021] [Indexed: 11/16/2022] Open
Abstract
Porphyrins are large organic molecules that are interesting for different applications, such as photovoltaic cells, gas sensors, or in catalysis. For many of these applications, the interactions between adsorbed molecules and surfaces play a crucial role. Studies of porphyrins on surfaces typically fall into one of two groups: (1) evaporation onto well-defined single-crystal surfaces under well-controlled ultrahigh vacuum conditions or (2) more application-oriented wet chemical deposition onto less well-defined high surface area surfaces under ambient conditions. In this study, we will investigate the wet chemical deposition of 5-(monocarboxyphenyl)-10,15,20-triphenylporphyrin (MCTPP) on well-defined rutile TiO2(110) single crystals under ambient conditions. Prior to deposition, the TiO2(110) crystals were also cleaned wet-chemically under ambient conditions, meaning none of the preparation steps were done in ultrahigh vacuum. However, after each preparation step, the surfaces were characterized in ultrahigh vacuum with X-ray photoelectron spectroscopy (XPS) and the result was compared with porphyrin layers prepared in ultrahigh vacuum (UHV) by evaporation. The differences of both preparations when exposed to zinc ion solutions will also be discussed.
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Affiliation(s)
- Daniel Wechsler
- Lehrstuhl für Physikalische Chemie II, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, 91058 Erlangen, Germany; (D.W.); (J.K.); (L.-M.A.); (H.-P.S.)
| | - Cynthia Carolina Fernández
- Departamento de Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, INQUIMAE-CONICET, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón 2, Buenos Aires C1428EHA, Argentina; (C.C.F.); (F.J.W.)
| | - Julia Köbl
- Lehrstuhl für Physikalische Chemie II, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, 91058 Erlangen, Germany; (D.W.); (J.K.); (L.-M.A.); (H.-P.S.)
| | - Lisa-Marie Augustin
- Lehrstuhl für Physikalische Chemie II, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, 91058 Erlangen, Germany; (D.W.); (J.K.); (L.-M.A.); (H.-P.S.)
| | - Corinna Stumm
- Lehrstuhl für Katalytische Grenzflächenforschung, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, 91058 Erlangen, Germany;
| | - Norbert Jux
- Lehrstuhl für Organische Chemie II, Friedrich-Alexander-Universität Erlangen-Nürnberg, Nikolaus-Fiebiger-Str. 10, 91058 Erlangen, Germany;
| | - Hans-Peter Steinrück
- Lehrstuhl für Physikalische Chemie II, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, 91058 Erlangen, Germany; (D.W.); (J.K.); (L.-M.A.); (H.-P.S.)
| | - Federico José Williams
- Departamento de Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, INQUIMAE-CONICET, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón 2, Buenos Aires C1428EHA, Argentina; (C.C.F.); (F.J.W.)
| | - Ole Lytken
- Lehrstuhl für Physikalische Chemie II, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, 91058 Erlangen, Germany; (D.W.); (J.K.); (L.-M.A.); (H.-P.S.)
- Correspondence:
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2
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Francis S, Rajith L. Selective Fluorescent Sensing of Adenine Via the Emissive Enhancement of a Simple Cobalt Porphyrin. J Fluoresc 2021; 31:577-586. [PMID: 33481138 DOI: 10.1007/s10895-021-02685-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Accepted: 01/11/2021] [Indexed: 11/24/2022]
Abstract
Porphyrins absorb strongly in the visible region and are also excellent fluorophores that emit in the visible region that make them excellent candidates for fluorescence sensing and in vivo imaging. This work describes the fluorescence determination of adenine using cobalt complex of a simple porphyrin. Tetraphenylporphyrin (TPP) and tetraphenylpophyrinatocobalt(II) (CoTPP) were synthesized and characterised. TPP on metallation with cobalt resulted in the red shift of fluorescence emission in the region 652 nm and 716 nm and showed an enhancement in the emission peaks with the addition of the nucleobase, adenine. CoTPP is found to be an efficient fluorescent sensor for adenine in DMF solvent. The fluorescence enhancement is due to the formation of the ground state complex formation between adenine and CoTPP, which is supported by experimental evidences from UV- visible spectra, time resolved fluorescence life time measurements etc. The detection limit of adenine was found to be 4.2 μM using the CoTPP fluorescent probe. The proposed sensor is found to be highly selective for adenine in presence of other nitrogen bases like guanine, cytosine, uracil, thymine, alanine, histidine etc. in 1:1 concentration.
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Affiliation(s)
- Shijo Francis
- Department of Applied Chemistry, Cochin University of Science and Technology, Kochi, Kerala, 682022, India
| | - Leena Rajith
- Department of Applied Chemistry, Cochin University of Science and Technology, Kochi, Kerala, 682022, India.
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Fernández CC, Franke M, Steinrück HP, Lytken O, Williams FJ. Demetalation of Surface Porphyrins at the Solid-Liquid Interface. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:852-857. [PMID: 33400533 DOI: 10.1021/acs.langmuir.0c03197] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Understanding the factors that control the demetalation of surface porphyrins at the solid-liquid interface is important as the molecular properties of porphyrins are largely determined by their metal centers. In this work, we used X-ray photoelectron spectroscopy (XPS) to follow the demetalation of Zn and Cd tetraphenylporphyrin molecules (ZnTPP and CdTPP) adsorbed as three-monolayer-thin multilayer films on Au(111), by exposing the molecular layers to acidic aqueous solutions. We found that porphyrin molecules at the solid-liquid interface are less prone to lose their metal center than molecules in solution. We propose that this behavior is due to either the incoming protons provided by the solution or the outgoing metal ion having to pass through the hydrophobic porphyrin multilayers where they cannot be solvated. Our results are relevant for the design of molecular devices based on porphyrin molecules adsorbed on solid surfaces.
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Affiliation(s)
- Cynthia C Fernández
- Departamento de Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
- Instituto de Química Física de los Materiales, Medio Ambiente y Energía INQUIMAE, CONICET, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Matthias Franke
- Lehrstuhl für Physikalische Chemie II, Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Hans-Peter Steinrück
- Lehrstuhl für Physikalische Chemie II, Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Ole Lytken
- Lehrstuhl für Physikalische Chemie II, Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Federico J Williams
- Departamento de Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
- Instituto de Química Física de los Materiales, Medio Ambiente y Energía INQUIMAE, CONICET, Universidad de Buenos Aires, Buenos Aires, Argentina
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Norvaiša K, Kielmann M, Senge MO. Porphyrins as Colorimetric and Photometric Biosensors in Modern Bioanalytical Systems. Chembiochem 2020; 21:1793-1807. [PMID: 32187831 PMCID: PMC7383976 DOI: 10.1002/cbic.202000067] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Revised: 03/04/2020] [Indexed: 12/18/2022]
Abstract
Advances in porphyrin chemistry have provided novel materials and exciting technologies for bioanalysis such as colorimetric sensor array (CSA), photo-electrochemical (PEC) biosensing, and nanocomposites as peroxidase mimetics for glucose detection. This review highlights selected recent advances in the construction of supramolecular assemblies based on the porphyrin macrocycle that provide recognition of various biologically important entities through the unique porphyrin properties associated with colorimetry, spectrophotometry, and photo-electrochemistry.
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Affiliation(s)
- Karolis Norvaiša
- School of Chemistry, SFI Tetrapyrrole LaboratoryTrinity Biomedical Sciences Institute152–160 Pearse Street, Trinity College Dublin The University of DublinDublin2Ireland
| | - Marc Kielmann
- School of Chemistry, SFI Tetrapyrrole LaboratoryTrinity Biomedical Sciences Institute152–160 Pearse Street, Trinity College Dublin The University of DublinDublin2Ireland
| | - Mathias O. Senge
- School of Chemistry, SFI Tetrapyrrole LaboratoryTrinity Biomedical Sciences Institute152–160 Pearse Street, Trinity College Dublin The University of DublinDublin2Ireland
- Institute for Advanced Study (TUM-IAS)Lichtenberg-Strasse 2a85748GarchingGermany
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Di Natale C. Roberto Paolesse and the sensors group at the university of Rome Tor Vergata: (“ the world will always welcome ‘ chemists, ’ as time goes by…” ). J PORPHYR PHTHALOCYA 2020. [DOI: 10.1142/s1088424620020034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Affiliation(s)
- Corrado Di Natale
- Department of Electronic Engineering, University of Rome Tor Vergata, via Politecnico 1, 00133 Roma; Italy
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Chambers P, Kuruppu Arachchige NMK, Taylor AM, Garno JC. Surface Coupling of Octaethylporphyrin with Silicon Tetrachloride. ACS OMEGA 2019; 4:2565-2576. [PMID: 31459493 PMCID: PMC6649131 DOI: 10.1021/acsomega.8b03204] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Accepted: 01/18/2019] [Indexed: 06/10/2023]
Abstract
The surface assembly of 2,3,7,8,12,13,17,18-octaethylporphyrin (OEP) using silicon tetrachloride as a coupling agent was investigated using atomic force microscopy (AFM). Nanopatterned films of Si-OEP were prepared by protocols of colloidal lithography to evaluate the morphology, thickness, and molecular orientation for samples prepared on Si(111). The natural self-stacking of porphyrins can pose a challenge for molecular patterning. When making films on surfaces, porphyrins will self-associate to form co-planar configurations of random stacks of molecules. There is a tendency for the flat molecules to orient spontaneously in a side-on arrangement that is mediated by physisorption to the substrate as well as by π-π interactions between macrocycles to form a layered arrangement of packed molecules, analogous to a stack of coins. When silicon tetrachloride is introduced to the reaction vessel, the coupling between the surface and porphyrins is mediated through covalent Si-O bonding. For these studies, surface structures of Si-OEP were formed that are connected with a Si-O-Si motif to a silicon atom coordinated to the center of the porphyrin macrocycles. Protocols of colloidal lithography were used as a tool to prepare surface structures and films of Si-OEP to facilitate surface characterizations. Conceptually, by arranging the macrocycles of porphyrins with defined orientation, local AFM surface measurements can be enabled to help address mechanistic questions about how molecules self-assemble and bind to substrates.
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Di Natale C, Martinelli E, Magna G, Mandoj F, Monti D, Nardis S, Stefanelli M, Paolesse R. Porphyrins for olfaction mimic: The Rome Tor Vergata approach. J PORPHYR PHTHALOCYA 2018. [DOI: 10.1142/s1088424617300026] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The impressive chemistry shown by porphyrins in natural systems is particularly attractive for exploitation in chemical sensors. In these devices the sensing mechanisms can mimic most of the porphyrin biological reactivity, such as reversible binding, activation of small molecules, redox activity, and photoactivated processes. The simultaneous presence of multiple binding mechanisms allows porphyrins to interact with a large variety of analytes. This feature reduces the selectivity, but prompts the development of sensor arrays, where the cross-selectivity of more sensors is used to classify and identify samples characterized by a complex composition. Since 1995 the Sensors Group of the University of Rome Tor Vergata has exploited these features to prepare sensor arrays based on different transducers and aimed at several applications. These kinds of devices have been reported as electronic noses (gaseous phase analytes) and electronic tongues (liquid phase analytes) to underline that their working mechanisms are tentatively similar to that of biological senses. We report here some of the results obtained.
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Affiliation(s)
- Corrado Di Natale
- Dipartimento di Ingegneria Elettronica, Università di Roma Tor Vergata, 00133 Roma, Italy
| | - Eugenio Martinelli
- Dipartimento di Ingegneria Elettronica, Università di Roma Tor Vergata, 00133 Roma, Italy
| | - Gabriele Magna
- Dipartimento di Ingegneria Elettronica, Università di Roma Tor Vergata, 00133 Roma, Italy
| | - Federica Mandoj
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma Tor Vergata, 00133 Roma, Italy
| | - Donato Monti
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma Tor Vergata, 00133 Roma, Italy
| | - Sara Nardis
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma Tor Vergata, 00133 Roma, Italy
| | - Manuela Stefanelli
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma Tor Vergata, 00133 Roma, Italy
| | - Roberto Paolesse
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma Tor Vergata, 00133 Roma, Italy
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Systematic approach in Mg 2+ ions analysis with a combination of tailored fluorophore design. Anal Chim Acta 2017; 988:96-103. [PMID: 28916109 DOI: 10.1016/j.aca.2017.07.062] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Revised: 07/13/2017] [Accepted: 07/29/2017] [Indexed: 11/24/2022]
Abstract
A systematic study of a series of diaza-18-crown-6 8-hydroxyquinoline (DCHQ) chemosensors, devoted to Mg(II) ion detection, was performed. Functionalization of DCHQ by peripheral substituents allowed the development of novel all-solid-state optodes via inclusion inside PVC-based polymeric films. The influence on the DCHQ-based optode response of the lipophilic sites functionalization and of the nature of the plasticizer, was investigated. Fluorimetric studies on optodes sensitivity towards a number of different metal cations (Ca2+, Na+, K+, Li+, Co2+, Cd2+, Pb2+, Cu2+, Hg2+, Zn2+) and NH4+ were carried out. The results demonstrated the suitability of the DCHQ optodes to perform fast monitoring (<10s) of magnesium (II) ions. Emission light signal was sufficiently brilliant to be captured by a low-cost computer webcam. The phenyl-substituted DCHQ-Ph derivative showed the best performance with a wide range for Mg(II) ion determination between 2.7 × 10-7 and 2.2 × 10-2 mol/L. It was possible, therefore, to determine the concentrations of Mg(II) in commercial fertilizer samples by DCHQ-Ph-based optodes with acceptable results: recoveries of 96.2-104.9% and relative standard deviation (RSD, n = 6) less than 5%. Moreover, in comparison to single sensors, the use of an array composed of five optodes (the ones showing the best performances in the preliminary tests) has allowed to reduce the RSD of magnesium determination in real samples (down to 3.7% with respect to 5.5% for single optodes) and to achieve a detection limit (estimated by s/n = 3 method) as low as 4.6 × 10-7 mol/L.
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Paolesse R, Nardis S, Monti D, Stefanelli M, Di Natale C. Porphyrinoids for Chemical Sensor Applications. Chem Rev 2016; 117:2517-2583. [PMID: 28222604 DOI: 10.1021/acs.chemrev.6b00361] [Citation(s) in RCA: 407] [Impact Index Per Article: 50.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Porphyrins and related macrocycles have been intensively exploited as sensing materials in chemical sensors, since in these devices they mimic most of their biological functions, such as reversible binding, catalytic activation, and optical changes. Such a magnificent bouquet of properties allows applying porphyrin derivatives to different transducers, ranging from nanogravimetric to optical devices, also enabling the realization of multifunctional chemical sensors, in which multiple transduction mechanisms are applied to the same sensing layer. Potential applications are further expanded through sensor arrays, where cross-selective sensing layers can be applied for the analysis of complex chemical matrices. The possibility of finely tuning the macrocycle properties by synthetic modification of the different components of the porphyrin ring, such as peripheral substituents, molecular skeleton, coordinated metal, allows creating a vast library of porphyrinoid-based sensing layers. From among these, one can select optimal arrays for a particular application. This feature is particularly suitable for sensor array applications, where cross-selective receptors are required. This Review briefly describes chemical sensor principles. The main part of the Review is divided into two sections, describing the porphyrin-based devices devoted to the detection of gaseous or liquid samples, according to the corresponding transduction mechanism. Although most devices are based on porphyrin derivatives, seminal examples of the application of corroles or other porphyrin analogues are evidenced in dedicated sections.
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Affiliation(s)
- Roberto Paolesse
- Department of Chemical Science and Technologies, University of Rome Tor Vergata , via della Ricerca Scientifica 1, 00133 Rome, Italy
| | - Sara Nardis
- Department of Chemical Science and Technologies, University of Rome Tor Vergata , via della Ricerca Scientifica 1, 00133 Rome, Italy
| | - Donato Monti
- Department of Chemical Science and Technologies, University of Rome Tor Vergata , via della Ricerca Scientifica 1, 00133 Rome, Italy
| | - Manuela Stefanelli
- Department of Chemical Science and Technologies, University of Rome Tor Vergata , via della Ricerca Scientifica 1, 00133 Rome, Italy
| | - Corrado Di Natale
- Department of Electronic Engineering, University of Rome Tor Vergata , via del Politecnico, 00133 Rome, Italy
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Giancane G, Bettini S, Pagano R, Valli L. ZnO-Porphyrin Composite Nanostructures as Discriminating Adducts for Metallic Ions in Aqueous Matrices. ChemistrySelect 2016. [DOI: 10.1002/slct.201600942] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Gabriele Giancane
- Department of Cultural Heritage; University of Salento; Via Birago 64, I- 73100 Lecce Italy
| | - Simona Bettini
- Department of Engineering for Innovation, Campus University Ecotekne; University of Salento; Via per Monteroni, I- 73100 Lecce Italy
| | - Rosanna Pagano
- Department of Engineering for Innovation, Campus University Ecotekne; University of Salento; Via per Monteroni, I- 73100 Lecce Italy
| | - Ludovico Valli
- Department of Biological and Environmental Sciences and Technologies, DISTEBA; University of Salento; Via per Arnesano, I- 73100 Lecce Italy
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PUTTAIAH BHYRAPPA, VEERAPANDIAN VELKANNAN, KUMAR SARANGIUJWAL. Crystal structures of unsymmetrically mixed β-pyrrole substituted nickel(II)-meso-tetraphenylporphyrins. J CHEM SCI 2016. [DOI: 10.1007/s12039-016-1112-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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13
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Juárez LA, Costero AM, Parra M, Gaviña P, Gil S. 3-Formyl-BODIPY Phenylhydrazone as a Chromo-Fluorogenic Probe for Selective Detection of NO2(g). Chemistry 2016; 22:8448-51. [DOI: 10.1002/chem.201600929] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Indexed: 11/11/2022]
Affiliation(s)
- L. Alberto Juárez
- Centro de Reconocimiento Molecular y Desarrollo Tecnológico (IDM); Unidad Mixta Universidad Politécnica de Valencia-Universidad de Valencia; Spain
- Departamento de Química Orgánica; Universidad de Valencia, Doctor Moliner 50; 46100 Burjassot, Valencia Spain
| | - Ana M. Costero
- Centro de Reconocimiento Molecular y Desarrollo Tecnológico (IDM); Unidad Mixta Universidad Politécnica de Valencia-Universidad de Valencia; Spain
- Departamento de Química Orgánica; Universidad de Valencia, Doctor Moliner 50; 46100 Burjassot, Valencia Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN); Spain
| | - Margarita Parra
- Centro de Reconocimiento Molecular y Desarrollo Tecnológico (IDM); Unidad Mixta Universidad Politécnica de Valencia-Universidad de Valencia; Spain
- Departamento de Química Orgánica; Universidad de Valencia, Doctor Moliner 50; 46100 Burjassot, Valencia Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN); Spain
| | - Pablo Gaviña
- Centro de Reconocimiento Molecular y Desarrollo Tecnológico (IDM); Unidad Mixta Universidad Politécnica de Valencia-Universidad de Valencia; Spain
- Departamento de Química Orgánica; Universidad de Valencia, Doctor Moliner 50; 46100 Burjassot, Valencia Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN); Spain
| | - Salvador Gil
- Centro de Reconocimiento Molecular y Desarrollo Tecnológico (IDM); Unidad Mixta Universidad Politécnica de Valencia-Universidad de Valencia; Spain
- Departamento de Química Orgánica; Universidad de Valencia, Doctor Moliner 50; 46100 Burjassot, Valencia Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN); Spain
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14
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Crystal structures of meso-tetrakis(2′,6′/3′,5′-difluorophenyl)porphyrins and their metal complexes: Influence of position of the fluoro groups on their structural properties. J CHEM SCI 2016. [DOI: 10.1007/s12039-016-1053-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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15
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Montes-Robles R, Moragues ME, Vivancos JL, Ibáñez J, Fraile R, Martínez-Máñez R, García-Breijo E. Colorimetric detection of hazardous gases using a remotely operated capturing and processing system. ISA TRANSACTIONS 2015; 59:434-442. [PMID: 26434416 DOI: 10.1016/j.isatra.2015.09.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Revised: 09/10/2015] [Accepted: 09/12/2015] [Indexed: 06/05/2023]
Abstract
This paper presents an electronic system for the automatic detection of hazardous gases. The proposed system implements colorimetric sensing algorithms, thus providing a low-cost solution to the problem of gas sensing. It is remotely operated and it performs the tasks of image capturing and processing, hence obtaining colour measurements in RGB (Red-Green-Blue) space that are subsequently sent to a remote operator via the internet. A prototype of the system has been built to test its performance. Specifically, experiments have been carried out aimed at the detection of CO, CO2, NO, NO2, SO2 and formaldehyde at diverse concentrations by using a chromogenic array composed by 13 active and 2 inert compounds. Statistical analyses of the results reveal a good performance of the electronic system and the feasibility of remote hazardous gas detection using colorimetric sensor arrays.
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Affiliation(s)
- Roberto Montes-Robles
- Centro de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Unidad Mixta Universidad Politécnica de Valencia - Universidad de Valencia, Camino de Vera s/n, 46022 Valencia, Spain.
| | - María Esperanza Moragues
- Centro de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Unidad Mixta Universidad Politécnica de Valencia - Universidad de Valencia, Camino de Vera s/n, 46022 Valencia, Spain; CIBER de Bioingeniera, Biomateriales y Nanomedicina (CIBER-BBN), Spain.
| | - José-Luis Vivancos
- Centro de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Unidad Mixta Universidad Politécnica de Valencia - Universidad de Valencia, Camino de Vera s/n, 46022 Valencia, Spain; CIBER de Bioingeniera, Biomateriales y Nanomedicina (CIBER-BBN), Spain.
| | - Javier Ibáñez
- Centro de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Unidad Mixta Universidad Politécnica de Valencia - Universidad de Valencia, Camino de Vera s/n, 46022 Valencia, Spain.
| | - Rubén Fraile
- Signal Theory & Communications Department, Escuela Técnica Superior de Ingeniería y Sistemas de Telecomunicación, Universidad Politécnica de Madrid - Campus Sur, Carretera de Valencia km 7, 28031 Madrid, Spain.
| | - Ramón Martínez-Máñez
- Centro de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Unidad Mixta Universidad Politécnica de Valencia - Universidad de Valencia, Camino de Vera s/n, 46022 Valencia, Spain; CIBER de Bioingeniera, Biomateriales y Nanomedicina (CIBER-BBN), Spain.
| | - Eduardo García-Breijo
- Centro de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Unidad Mixta Universidad Politécnica de Valencia - Universidad de Valencia, Camino de Vera s/n, 46022 Valencia, Spain.
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Self-assembled micro-structured sensors for food safety in paper based food packaging. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 53:331-5. [DOI: 10.1016/j.msec.2015.04.020] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Revised: 01/10/2015] [Accepted: 04/21/2015] [Indexed: 11/21/2022]
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17
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Dini F, Magna G, Martinelli E, Pomarico G, Di Natale C, Paolesse R, Lundström I. Combining porphyrins and pH indicators for analyte detection. Anal Bioanal Chem 2015; 407:3975-84. [DOI: 10.1007/s00216-014-8445-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Revised: 12/14/2014] [Accepted: 12/22/2014] [Indexed: 10/24/2022]
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18
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Mosciano F, Magna G, Catini A, Pomarico G, Martinelli E, Paolesse R, Di Natale C. Room Temperature CO Detection by Hybrid Porphyrin-ZnO Nanoparticles. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.proeng.2015.08.568] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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19
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Wei Q, Luo W, Chiang S, Kappel T, Mejia C, Tseng D, Chan RYL, Yan E, Qi H, Shabbir F, Ozkan H, Feng S, Ozcan A. Imaging and sizing of single DNA molecules on a mobile phone. ACS NANO 2014; 8:12725-33. [PMID: 25494442 DOI: 10.1021/nn505821y] [Citation(s) in RCA: 114] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
DNA imaging techniques using optical microscopy have found numerous applications in biology, chemistry and physics and are based on relatively expensive, bulky and complicated set-ups that limit their use to advanced laboratory settings. Here we demonstrate imaging and length quantification of single molecule DNA strands using a compact, lightweight and cost-effective fluorescence microscope installed on a mobile phone. In addition to an optomechanical attachment that creates a high contrast dark-field imaging setup using an external lens, thin-film interference filters, a miniature dovetail stage and a laser-diode for oblique-angle excitation, we also created a computational framework and a mobile phone application connected to a server back-end for measurement of the lengths of individual DNA molecules that are labeled and stretched using disposable chips. Using this mobile phone platform, we imaged single DNA molecules of various lengths to demonstrate a sizing accuracy of <1 kilobase-pairs (kbp) for 10 kbp and longer DNA samples imaged over a field-of-view of ∼2 mm2.
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Affiliation(s)
- Qingshan Wei
- Electrical Engineering Department, University of California , Los Angeles, California 90095, United States
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20
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Diller K, Klappenberger F, Allegretti F, Papageorgiou AC, Fischer S, Duncan DA, Maurer RJ, Lloyd JA, Oh SC, Reuter K, Barth JV. Temperature-dependent templated growth of porphine thin films on the (111) facets of copper and silver. J Chem Phys 2014; 141:144703. [DOI: 10.1063/1.4896605] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Affiliation(s)
- Katharina Diller
- Physik-Department, E20, Technische Universität München, 85748 Garching, Germany
- Theoretische Chemie, Technische Universität München, 85748 Garching, Germany
| | | | | | | | - Sybille Fischer
- Physik-Department, E20, Technische Universität München, 85748 Garching, Germany
| | - David A. Duncan
- Physik-Department, E20, Technische Universität München, 85748 Garching, Germany
| | - Reinhard J. Maurer
- Theoretische Chemie, Technische Universität München, 85748 Garching, Germany
| | - Julian A. Lloyd
- Physik-Department, E20, Technische Universität München, 85748 Garching, Germany
| | - Seung Cheol Oh
- Physik-Department, E20, Technische Universität München, 85748 Garching, Germany
| | - Karsten Reuter
- Theoretische Chemie, Technische Universität München, 85748 Garching, Germany
| | - Johannes V. Barth
- Physik-Department, E20, Technische Universität München, 85748 Garching, Germany
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21
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Meier RJ, Simbürger JMB, Soukka T, Schäferling M. Background-Free Referenced Luminescence Sensing and Imaging of pH Using Upconverting Phosphors and Color Camera Read-out. Anal Chem 2014; 86:5535-40. [DOI: 10.1021/ac5009207] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Robert J. Meier
- Department
of Biochemistry/Biotechnology, University of Turku, Turku, 20520, Finland
| | - Johann M. B. Simbürger
- Institute
of Analytical Chemistry, Chemo- and Biosensors, University of Regensburg, 93040 Regensburg, Germany
| | - Tero Soukka
- Department
of Biochemistry/Biotechnology, University of Turku, Turku, 20520, Finland
| | - Michael Schäferling
- Department
of Biochemistry/Biotechnology, University of Turku, Turku, 20520, Finland
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22
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Goswami S, Das AK, Maity AK, Manna A, Aich K, Maity S, Saha P, Mandal TK. Visual and near IR (NIR) fluorescence detection of Cr3+in aqueous media via spirobenzopyran ring opening with application in logic gate and bio-imaging. Dalton Trans 2014; 43:231-9. [DOI: 10.1039/c3dt51851e] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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23
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Bouvet M, Gaudillat P, Suisse JM. Phthalocyanine-based hybrid materials for chemosensing. J PORPHYR PHTHALOCYA 2013. [DOI: 10.1142/s1088424613300073] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
In the present review, we show how the chemical variability of phthalocyanines allowed to synthesize a broad range of hybrid materials. The combination of phthalocyanines or related derivatives with polymers or carbonaceous materials led to efficient chemical sensors. It is shown how the incorporation of macrocyclic molecules in hybrid materials highly modifies the structural and morphological characteristics of the materials. Rugosity, specific surface and porosity being key parameters in the analyte-sensing material interactions, these modifications highly improve the performance of chemical sensors. This is the reason why they are particularly promising materials for the development of new chemical sensors, associated with electrochemical, conductometric or optical transducers.
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Affiliation(s)
- Marcel Bouvet
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB), Université de Bourgogne, UMR CNRS 6302, 9 avenue A. Savary, F-21078 Dijon, France
| | - Pierre Gaudillat
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB), Université de Bourgogne, UMR CNRS 6302, 9 avenue A. Savary, F-21078 Dijon, France
| | - Jean-Moïse Suisse
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB), Université de Bourgogne, UMR CNRS 6302, 9 avenue A. Savary, F-21078 Dijon, France
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24
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A ferrocene-porphyrin ligand for multi-transduction chemical sensor development. SENSORS 2013; 13:5841-56. [PMID: 23653052 PMCID: PMC3690033 DOI: 10.3390/s130505841] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/14/2013] [Revised: 04/19/2013] [Accepted: 04/22/2013] [Indexed: 11/16/2022]
Abstract
5,10,15,20-Tetraferrocenyl porphyrin, H2TFcP, a simple example of a donor-acceptor system, was tested as ligand for the development of a novel multi-transduction chemical sensors aimed at the determination of transition metal ions. The fluorescence energy transfer between ferrocene donor and porphyrin acceptor sub-units was considered. The simultaneously measured optical and potentiometric responses of solvent polymeric membranes based on H2TFcP permitted the detection of lead ions in sample solutions, in the concentration range from 2.7 × 10(-7) to 3.0 × 10(-3) M. The detection limit of lead determination was 0.27 μM, low enough to perform the direct analysis of Pb2+ in natural waters.
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25
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Diller K, Klappenberger F, Allegretti F, Papageorgiou AC, Fischer S, Wiengarten A, Joshi S, Seufert K, Écija D, Auwärter W, Barth JV. Investigating the molecule-substrate interaction of prototypic tetrapyrrole compounds: Adsorption and self-metalation of porphine on Cu(111). J Chem Phys 2013; 138:154710. [DOI: 10.1063/1.4800771] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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26
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Lapresta-Fernández A, Titos-Padilla S, Herrera JM, Salinas-Castillo A, Colacio E, Capitán Vallvey LF. Photographing the synergy between magnetic and colour properties in spin crossover material [Fe(NH2trz)3](BF4)2: a temperature sensor perspective. Chem Commun (Camb) 2013. [DOI: 10.1039/c2cc36320h] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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27
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Preechaburana P, Gonzalez MC, Suska A, Filippini D. Surface Plasmon Resonance Chemical Sensing on Cell Phones. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201206804] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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28
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Surface Plasmon Resonance Chemical Sensing on Cell Phones. Angew Chem Int Ed Engl 2012; 51:11585-8. [DOI: 10.1002/anie.201206804] [Citation(s) in RCA: 164] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2012] [Indexed: 11/07/2022]
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29
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Fischer LH, Karakus C, Meier RJ, Risch N, Wolfbeis OS, Holder E, Schäferling M. Referenced Dual Pressure- and Temperature-Sensitive Paint for Digital Color Camera Read Out. Chemistry 2012; 18:15706-13. [DOI: 10.1002/chem.201201358] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2012] [Indexed: 01/27/2023]
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30
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Wang XD, Meier RJ, Wolfbeis OS. Fluorescent pH-sensitive nanoparticles in an agarose matrix for imaging of bacterial growth and metabolism. Angew Chem Int Ed Engl 2012; 52:406-9. [PMID: 23047845 DOI: 10.1002/anie.201205715] [Citation(s) in RCA: 99] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2012] [Indexed: 01/21/2023]
Abstract
Living color: fluorescent pH-sensitive nanoparticles 12 nm in diameter were prepared and incorporated into agarose gel in a Petri dish to image pH changes during bacterial growth and metabolism.
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Affiliation(s)
- Xu-dong Wang
- Institute of Analytical Chemistry, Chemo- and Biosensors, University of Regensburg, Germany.
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31
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Wang XD, Meier RJ, Wolfbeis OS. Fluorescent pH-Sensitive Nanoparticles in an Agarose Matrix for Imaging of Bacterial Growth and Metabolism. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201205715] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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32
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Cauzzi D, Pattacini R, Delferro M, Dini F, Di Natale C, Paolesse R, Bonacchi S, Montalti M, Zaccheroni N, Calvaresi M, Zerbetto F, Prodi L. Temperature-Dependent Fluorescence of Cu5 Metal Clusters: A Molecular Thermometer. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201204052] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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33
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Cauzzi D, Pattacini R, Delferro M, Dini F, Di Natale C, Paolesse R, Bonacchi S, Montalti M, Zaccheroni N, Calvaresi M, Zerbetto F, Prodi L. Temperature-dependent fluorescence of Cu5 metal clusters: a molecular thermometer. Angew Chem Int Ed Engl 2012; 51:9662-5. [PMID: 22893611 DOI: 10.1002/anie.201204052] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2012] [Indexed: 11/12/2022]
Affiliation(s)
- Daniele Cauzzi
- Dipartimento di Chimica Generale ed Inorganica, Chimica Analitica, Chimica Fisica, Università di Parma, Viale G. P. Usberti 17A, 43100 Parma, Italy
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34
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Preechaburana P, Suska A, Filippini D. Embedded adaptive optics for ubiquitous lab-on-a-chip readout on intact cell phones. SENSORS 2012; 12:8586-600. [PMID: 23012507 PMCID: PMC3444065 DOI: 10.3390/s120708586] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/02/2012] [Revised: 05/28/2012] [Accepted: 06/06/2012] [Indexed: 11/18/2022]
Abstract
The evaluation of disposable lab-on-a-chip (LOC) devices on cell phones is an attractive alternative to migrate the analytical strength of LOC solutions to decentralized sensing applications. Imaging the micrometric detection areas of LOCs in contact with intact phone cameras is central to provide such capability. This work demonstrates a disposable and morphing liquid lens concept that can be integrated in LOC devices and refocuses micrometric features in the range necessary for LOC evaluation using diverse cell phone cameras. During natural evaporation, the lens focus varies adapting to different type of cameras. Standard software in the phone commands a time-lapse acquisition for best focal selection that is sufficient to capture and resolve, under ambient illumination, 50 μm features in regions larger than 500 × 500 μm2. In this way, the present concept introduces a generic solution compatible with the use of diverse and unmodified cell phone cameras to evaluate disposable LOC devices.
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Affiliation(s)
- Pakorn Preechaburana
- Optical Devices Laboratory, Division of Applied Physics, IFM–Linköping University, SE-58183 Linköping, Sweden; E-Mails: (A.S.); (D.F.)
- Department of Physics, Faculty of Science and Technology, Thammasat University, Pathum Thani 12121, Thailand
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +46-1328-1282; Fax: +46-1313-7568
| | - Anke Suska
- Optical Devices Laboratory, Division of Applied Physics, IFM–Linköping University, SE-58183 Linköping, Sweden; E-Mails: (A.S.); (D.F.)
| | - Daniel Filippini
- Optical Devices Laboratory, Division of Applied Physics, IFM–Linköping University, SE-58183 Linköping, Sweden; E-Mails: (A.S.); (D.F.)
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35
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Diller K, Klappenberger F, Marschall M, Hermann K, Nefedov A, Wöll C, Barth JV. Self-metalation of 2H-tetraphenylporphyrin on Cu(111): an x-ray spectroscopy study. J Chem Phys 2012; 136:014705. [PMID: 22239798 DOI: 10.1063/1.3674165] [Citation(s) in RCA: 145] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The bonding and the temperature-driven metalation of 2H-tetraphenylporphyrin (2H-TPP) on the Cu(111) surface under ultrahigh vacuum conditions were investigated by a combination of x-ray photoelectron spectroscopy (XPS) and near-edge x-ray absorption fine structure (NEXAFS) spectroscopy with density functional theory calculations. Thin films were prepared by organic molecular beam epitaxy and subsequent annealing. Our systematic study provides an understanding of the changes of the spectroscopic signature during adsorption and metalation. Specifically, we achieved a detailed peak assignment of the 2H-TPP multilayer data of the C1s and the N1s region. After annealing to 420 K both XPS and NEXAFS show the signatures of a metalloporphyrin, which indicates self-metalation at the porphyrin-substrate interface, resulting in Cu-TPP. Furthermore, for 2H-TPP monolayer samples we show how the strong influence of the copper surface is reflected in the spectroscopic signatures. Adsorption results in a strongly deformed macrocycle and a quenching of the first NEXAFS resonance in the nitrogen edge suggesting electron transfer into the LUMO. For Cu-TPP the spectroscopic data indicate a reduced interaction of first-layer molecules with the substrate as demonstrated by the relaxed macrocycle geometry.
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Affiliation(s)
- K Diller
- Physik Department E20, Technische Universität München, James-Franck-Straße 1, D-85748 Garching, Germany.
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36
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37
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Schäferling M. The Art of Fluorescence Imaging with Chemical Sensors. Angew Chem Int Ed Engl 2012; 51:3532-54. [PMID: 22422626 DOI: 10.1002/anie.201105459] [Citation(s) in RCA: 544] [Impact Index Per Article: 45.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2011] [Revised: 10/12/2011] [Indexed: 11/08/2022]
Affiliation(s)
- Michael Schäferling
- Institute of Analytical Chemistry, Chemo- and Biosensors, University of Regensburg, 93040 Regensburg, Germany.
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38
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Filippini D, Gatto E, Alimelli A, Ali Malik M, Di Natale C, Paolesse R, D'Amico A, Lundström I. Spectral fingerprinting of porphyrins for distributed chemical sensing. J PORPHYR PHTHALOCYA 2012. [DOI: 10.1142/s1088424609000152] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Recent progress in spectral fingerprinting of fluorescent indicators using distributed instrumentation based on consumer electronic devices is reviewed. In particular, the evaluation of disposable assays using a computer screen photo-assisted technique (CSPT) is discussed. Sample identification and optimization strategies are analyzed as well as the underlying theoretical background for polychromatic spectral fingerprinting.
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Affiliation(s)
- Daniel Filippini
- Division of Applied Physics, IFM-Linköping University, 58183 Linköping, Sweden
| | - Emanuela Gatto
- Department of Chemical Sciences and Technologies, University of Rome "Tor Vergata", Via della Ricerca Scientifica, 00133 Rome, Italy
| | - Adriano Alimelli
- Department of Electronic Engineering, University of Rome "Tor Vergata", Via del Politecnico 1, 00133 Rome, Italy
| | - Muhamad Ali Malik
- Division of Applied Physics, IFM-Linköping University, 58183 Linköping, Sweden
| | - Corrado Di Natale
- Department of Electronic Engineering, University of Rome "Tor Vergata", Via del Politecnico 1, 00133 Rome, Italy
| | - Roberto Paolesse
- Department of Chemical Sciences and Technologies, University of Rome "Tor Vergata", Via della Ricerca Scientifica, 00133 Rome, Italy
| | - Arnaldo D'Amico
- Department of Electronic Engineering, University of Rome "Tor Vergata", Via del Politecnico 1, 00133 Rome, Italy
| | - Ingemar Lundström
- Division of Applied Physics, IFM-Linköping University, 58183 Linköping, Sweden
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39
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Dini F, Magna G, Martinelli E, Pomarico G, Paolesse R, Lundström I, Di Natale C. Indicators Blends Extend the Receptive Field of Colorimetric Chemical Sensors. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.proeng.2012.09.364] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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40
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Natali M, Giordani S. Interaction studies between photochromic spiropyrans and transition metal cations: the curious case of copper. Org Biomol Chem 2012; 10:1162-71. [DOI: 10.1039/c1ob06375h] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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41
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Martinelli E, Polese D, Dini F, Paolesse R, Filippini D, Lundström I, Di Natale C. An investigation on the role of spike latency in an artificial olfactory system. FRONTIERS IN NEUROENGINEERING 2011; 4:16. [PMID: 22194721 PMCID: PMC3243114 DOI: 10.3389/fneng.2011.00016] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2011] [Accepted: 11/28/2011] [Indexed: 11/24/2022]
Abstract
Experimental studies have shown that the reactions to external stimuli may appear only few hundreds of milliseconds after the physical interaction of the stimulus with the proper receptor. This behavior suggests that neurons transmit the largest meaningful part of their signal in the first spikes, and than that the spike latency is a good descriptor of the information content in biological neural networks. In this paper this property has been investigated in an artificial sensorial system where a single layer of spiking neurons is trained with the data generated by an artificial olfactory platform based on a large array of chemical sensors. The capability to discriminate between distinct chemicals and mixtures of them was studied with spiking neural networks endowed with and without lateral inhibitions and considering as output feature of the network both the spikes latency and the average firing rate. Results show that the average firing rate of the output spikes sequences shows the best separation among the experienced vapors, however the latency code is able in a shorter time to correctly discriminate all the tested volatile compounds. This behavior is qualitatively similar to those recently found in natural olfaction, and noteworthy it provides practical suggestions to tail the measurement conditions of artificial olfactory systems defining for each specific case a proper measurement time.
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Affiliation(s)
- Eugenio Martinelli
- Department of Electronic Engineering, University of Rome Tor Vergata Roma, Italy
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42
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Dini F, Martinelli E, Paolesse R, Filippini D, Schild D, Lundström I, DI Natale C. Data processing for image-based chemical sensors: unsupervised region of interest selection and background noise compensation. Anal Bioanal Chem 2011; 402:823-32. [DOI: 10.1007/s00216-011-5521-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2011] [Revised: 10/16/2011] [Accepted: 10/18/2011] [Indexed: 12/01/2022]
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43
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Zelenka K, Trnka T, Tišlerová I, Monti D, Cinti S, Naitana ML, Schiaffino L, Venanzi M, Laguzzi G, Luvidi L, Mancini G, Nováková Z, Šimák O, Wimmer Z, Drašar P. Spectroscopic, Morphological, and Mechanistic Investigation of the Solvent-Promoted Aggregation of Porphyrins Modified in meso-Positions by Glucosylated Steroids. Chemistry 2011; 17:13743-53. [DOI: 10.1002/chem.201101163] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2011] [Indexed: 01/21/2023]
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44
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Meier RJ, Schreml S, Wang XD, Landthaler M, Babilas P, Wolfbeis OS. Simultaneous Photographing of Oxygen and pH In Vivo Using Sensor Films. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201104530] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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45
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Meier RJ, Schreml S, Wang XD, Landthaler M, Babilas P, Wolfbeis OS. Simultaneous Photographing of Oxygen and pH In Vivo Using Sensor Films. Angew Chem Int Ed Engl 2011; 50:10893-6. [DOI: 10.1002/anie.201104530] [Citation(s) in RCA: 105] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2011] [Indexed: 12/17/2022]
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46
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Kim J, Lim SH, Yoon Y, Thangadurai TD, Yoon S. A fluorescent ammonia sensor based on a porphyrin cobalt(II)–dansyl complex. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.03.048] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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47
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Iqbal Z, Bjorklund RB. Colorimetric analysis of water and sand samples performed on a mobile phone. Talanta 2011; 84:1118-23. [DOI: 10.1016/j.talanta.2011.03.016] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2010] [Revised: 02/28/2011] [Accepted: 03/08/2011] [Indexed: 11/28/2022]
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48
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Wang XD, Zhou TY, Song XH, Jiang Y, Yang CJ, Chen X. Chameleon clothes for quantitative oxygen imaging. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c1jm14162g] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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49
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Dini F, Magna G, Martinelli E, Paolesse R, Filippini D, Lundström I, Di Natale C. Gas Sensitivity of Blends of Metalloporphyrins and Colorimetric Acid-Base Indicators. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.proeng.2011.12.349] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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50
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Chen W, El-Khouly ME, Fukuzumi S. Saddle Distortion of a Sterically Unhindered Porphyrin Ring in a Copper Porphyrin with Electron-Donating Substituents. Inorg Chem 2010; 50:671-8. [DOI: 10.1021/ic102208y] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Wentong Chen
- Department of Material and Life Science, Graduate School of Engineering, Osaka University, Suita, SORST, Japan Science Technology Agency, Osaka 565-0871, Japan
- School of Chemistry and Chemical Engineering, Jinggangshan University, Ji’an, Jiangxi 343009, China
| | - Mohamed E. El-Khouly
- Department of Material and Life Science, Graduate School of Engineering, Osaka University, Suita, SORST, Japan Science Technology Agency, Osaka 565-0871, Japan
- Department of Chemistry, Faculty of Science, Kafr ElSheikh University, Kafr ElSheikh 33516, Egypt
| | - Shunichi Fukuzumi
- Department of Material and Life Science, Graduate School of Engineering, Osaka University, Suita, SORST, Japan Science Technology Agency, Osaka 565-0871, Japan
- Department of Bioinspired Science, Ewha Womans University, Seoul 120-750, Korea
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