The Optoelectronic Nose: Colorimetric and Fluorometric Sensor Arrays

Chemical Reviews, Journal Year: 2018, Volume and Issue: 119(1), P. 231 - 292

Published: Sept. 12, 2018

A comprehensive review on the development and state of art colorimetric fluorometric sensor arrays is presented. Chemical sensing aims to detect subtle changes in chemical environment by transforming relevant or physical properties molecular ionic species (i.e., analytes) into an analytically useful output. Optical based chemoresponsive colorants (dyes nanoporous pigments) probe reactivity analytes, rather than their (e.g., mass). The specificity olfactory system does not come from specific receptors for analytes traditional lock-and-key model substrate-enzyme interactions), but olfaction makes use pattern recognition combined response several hundred receptors. In a similar fashion, provide high-dimensional data color fluorescence dyes these as they are exposed analytes. This provides with high sensitivity (often down parts per billion levels), impressive discrimination among very exquisite fingerprinting extremely mixtures over wide range analyte types, both gas liquid phases. Design instrumentation analysis discussed. addition, various chemometric statistical analyses (including hierarchical cluster (HCA), principal component (PCA), linear discriminant (LDA), support vector machines (SVMs), artificial neural networks (ANNs)) presented critiqued reference sensing. variety applications also discussed, including personal dosimetry toxic industrial chemical, detection explosives accelerants, quality control foods beverages, biosensing intracellularly, identification bacteria fungi, cancer disease biomarkers.

Language: Английский

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Electrochemical biosensors for pathogen detection

Biosensors and Bioelectronics, Journal Year: 2020, Volume and Issue: 159, P. 112214 - 112214

Published: April 12, 2020

Language: Английский

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Molecular Imprinting: Green Perspectives and Strategies

Advanced Materials, Journal Year: 2021, Volume and Issue: 33(30)

Published: June 18, 2021

Abstract Advances in revolutionary technologies pose new challenges for human life; response to them, global responsibility is pushing modern toward greener pathways. Molecular imprinting technology (MIT) a multidisciplinary mimic simulating the specific binding principle of enzymes substrates or antigens antibodies; along with its rapid progress and wide applications, MIT faces challenge complying green sustainable development requirements. With identification environmental risks associated unsustainable MIT, aspect termed has emerged developed. However, so far, no clear definition been provided appraise MIT. Herein, implementation process chemistry demonstrated mnemonic device form an acronym, GREENIFICATION, proposed present principles. The entire greenificated surveyed, including element choice, polymerization implementation, energy input, strategies, waste treatment, recovery, as well impacts these processes on operator health environment. Moreover, assistance upgraded instrumentation deploying goals considered. Finally, future perspectives are presented provide more complete picture road map pave way further development.

Language: Английский

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Molecularly imprinted polymers as receptor mimics for selective cell recognition

Chemical Society Reviews, Journal Year: 2018, Volume and Issue: 47(15), P. 5574 - 5587

Published: Jan. 1, 2018

Molecularly imprinted polymers are now approaching the perfection of natural receptors, e.g., ability to interact with or recognize cells.

Language: Английский

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Strategies of molecular imprinting-based solid-phase extraction prior to chromatographic analysis

TrAC Trends in Analytical Chemistry, Journal Year: 2020, Volume and Issue: 128, P. 115923 - 115923

Published: May 22, 2020

Language: Английский

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Conducting Polymers in the Fields of Energy, Environmental Remediation, and Chemical–Chiral Sensors

Chemical Reviews, Journal Year: 2018, Volume and Issue: 118(9), P. 4731 - 4816

Published: April 9, 2018

Conducting polymers (CPs), thanks to their unique properties, structures made on-demand, new composite mixtures, and possibility of deposit on a surface by chemical, physical, or electrochemical methodologies, have shown in the last years renaissance been widely used important fields chemistry materials science. Due extent literature CPs, this review, after concise introduction about interrelationship between electrochemistry conducting polymers, is focused exclusively following applications: energy (energy storage devices solar cells), use environmental remediation (anion cation trapping, electrocatalytic reduction/oxidation pollutants CP based electrodes, adsorption pollutants) finally electroanalysis as chemical sensors solution, gas phase, chiral molecules. This review expected be comprehensive, authoritative, useful community interested CPs applications.

Language: Английский

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Nanomaterials based electrochemical sensor and biosensor platforms for environmental applications

Trends in Environmental Analytical Chemistry, Journal Year: 2017, Volume and Issue: 13, P. 10 - 23

Published: Jan. 1, 2017

Language: Английский

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Dummy molecularly imprinted polymers based on a green synthesis strategy for magnetic solid-phase extraction of acrylamide in food samples

Talanta, Journal Year: 2018, Volume and Issue: 195, P. 390 - 400

Published: Nov. 22, 2018

Language: Английский

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Strategies of molecular imprinting-based fluorescence sensors for chemical and biological analysis

Biosensors and Bioelectronics, Journal Year: 2018, Volume and Issue: 112, P. 54 - 71

Published: April 17, 2018

Language: Английский

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Hydrophilic Multitemplate Molecularly Imprinted Biopolymers Based on a Green Synthesis Strategy for Determination of B-Family Vitamins

ACS Applied Materials & Interfaces, Journal Year: 2018, Volume and Issue: 10(4), P. 4140 - 4150

Published: Jan. 4, 2018

A novel green synthesis strategy was proposed for preparation of multitemplate molecularly imprinted biopolymers (mt-MIBP) in aqueous media with less consumption organic solvents, which were subsequently used as sorbents ultrasound-assisted dispersive solid-phase extraction (d-SPE) simultaneous recognition and efficient separation B-family vitamins juice samples, followed by high performance liquid chromatography (HPLC) determination. The obtained mt-MIBP fully characterized SEM, FT-IR, TEM, BET. It offered binding capacity, good selectivity, fast dynamics toward all the templates. Involved parameters d-SPE efficiency such mass, sonication time, eluting/washing solvents' types volumes concurrently investigated central composite design rapidity reliability. Under optimum conditions, developed mt-MIBP-d-SPE-HPLC method exhibited wide linear range, low limits detection quantification (LOQs) within 1.2–5.5 μg L–1 4.0–18.4 L–1, respectively, appropriate repeatability (relative standard deviation values below 4.2%, n = 4). selectivity this makes it suitable successful monitoring samples satisfactory recoveries 75.8–92.7%, 81.1–92.5%, 84.7–93.8% riboflavin (B2), nicotinamide (B3), pyridoxine (B6), respectively. present study implied highly promising perspectives water-compatible eco-friendly effective multiresidue analysis complicated matrixes.

Language: Английский

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