Pyrene chemosensors for nanomolar detection of toxic and cancerogenic amines

Ruiu, Andrea; Vonlanthen, Mireille; Morales-Espinoza, Eric G.; Rojas‐Montoya, Sandra M.; González-Méndez, Israel; Rivera, Ernesto

doi:10.1016/j.molstruc.2019.06.061

Cited by 15 publications

(9 citation statements)

References 66 publications

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“…Among many polyaromatic hydrocarbons (PAHs) pyrenes are probably the most explored ones due to their unique photophysical/optical properties and a broad range of their applications has been found in various elds from single molecule-based chemosensors, [1][2][3][4][5] including those for gases [6][7][8] to uorescent materials for bioimaging applications, [9][10][11] stimuli (temperature, pH, pressure) responsive molecular sensors [12][13][14] and advanced functional materials. [15][16][17][18][19] Modication of pyrene at 1-, 3-, 6-and 8-positions makes the maximum contributions to the HOMO-LUMO levels of pyrene and signicantly inuences the S 1 ) S 0 transitions.…”

Section: Introductionmentioning

confidence: 99%

2,7-Diazapyrenes: a brief review on synthetic strategies and application opportunities

et al. 2022

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Section: Introductionmentioning

confidence: 99%

2,7-Diazapyrenes: a brief review on synthetic strategies and application opportunities

et al. 2022

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“…The transducer is responsible for physically transforming the chemical signal, which is the result of the interaction between the receptor and the analyte, into another signal that is more easily quantifiable, measurable and manipulable. On the other hand, if the chemical sensor involves some kind of biological material as a receptor, then it is called a biosensor [2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Advanced Functional Membranes for Sensor Technologies

Hernández-Martínez

2022

Advanced Functional Membranes

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Sensors are modern data acquisition devices intended for detecting a specific change in the surrounding area and responding with an output signal. Among them, biological sensors (or biosensors) are of great interest due to their capacity for detecting molecules that indicate changes in people's health. This chapter provides an overview of the polymeric membranes that have novel or advanced functions in applications for the development of lab-on-chip or sensor technologies. Important approaches in this matter include the improvement of membranes as supporting medium of recognition element of the sensor, advances in membrane composition for protecting the integrity of target molecules, or the option to filter undesired components. The chapter is divided into three sections: membrane fabrication, molecular probes and platforms for reading sensor devices.

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“…Biosensors are chemical sensors that provide direct information about the composition of their environment; and consist of a selective membrane or layer associated with a physical transducer [1]. This selective membrane involves some type of biological material as a biological recognition element (biochemical receptor) immobilized on or within it, providing sensitivity and selectivity [2][3][4].…”

Section: Introductionmentioning

confidence: 99%

“…Consequently, the membranes play a critical role in the design and development of chemical sensors. As components of biosensors, membranes have more than one function, thus they have been used extensively for; (i) immobilizing biomolecules and/or cofactors as ionophores, (ii) improving selectivity of the chemical sensor, (iii) controlling the enzyme kinetics, (iv) improving biocompatibility of the system, and (v) controlling electron transfer properties of the system [4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Poly(2-Hydroxyethyl methacrylate-co-N,N-dimethylacrylamide)-Coated Quartz Crystal Microbalance Sensor: Membrane Characterization and Proof of Concept

Hernández-Martínez

2021

Gels

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Application-oriented hydrogel properties can be obtained by modifying the synthesis conditions of the materials. The purpose of this study is to achieve customized properties for sensing applications of hydrogel membranes based on poly(2-hydroxyethyl methacrylate), HEMA and N,N-dimethylacrylamide, DMAa. Copolymer p(HEMA-co-DMAa) hydrogels were prepared by varying the DMAa monomer ratio from 0–100% in 20% increments. Hydrogel membranes were characterized by attenuated infrared spectroscopy. Swelling and sorption were evaluated using cation solutions. Copolymers were also synthesized on the gold surface of quartz crystal microbalances (QCM) as coating membranes. A proof of concept was conducted for approaching the design and development of QCM sensors based on P(DMAa-co-HEMA)-membranes. Results showed that the water and ion adsorption capacity of hydrogel membranes increased with higher DMAa content. Membranes are not selective to a specific location but did show different transport features with each cation. The QCM coated with the selected membrane presented linear relationships between resonance frequency and ions concentration in solution (10–120 ppm). As a consequence, hydrogel membranes obtained are promising for the development of future biosensing devices.

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Pyrene chemosensors for nanomolar detection of toxic and cancerogenic amines

Cited by 15 publications

References 66 publications

2,7-Diazapyrenes: a brief review on synthetic strategies and application opportunities

2,7-Diazapyrenes: a brief review on synthetic strategies and application opportunities

Advanced Functional Membranes for Sensor Technologies

Poly(2-Hydroxyethyl methacrylate-co-N,N-dimethylacrylamide)-Coated Quartz Crystal Microbalance Sensor: Membrane Characterization and Proof of Concept

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