Stretchable nanofibrous membranes for colorimetric/fluorometric HCl sensing: Highly sensitive charge-transfer excited state

Zhang, Yujian; Li, Shaoheng; Pan, Guoxiang; Yang, Heyi; Qile, Moge; Chen, Jun-Rong; Song, Qingbao; Yan, Dongpeng

doi:10.1016/j.snb.2017.07.040

Cited by 35 publications

(18 citation statements)

References 41 publications

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“…The most common optical sensors include fluorescence sensors, surface plasmon resonance (SPR) sensors, surface-enhanced Raman scattering (SERS) sensors, etc. [50][51][52][53][54][55] Nowadays, the optical sensors have been developed to give dual-signal for multitarget detection, 56 connected to a smartphone for real-time and in vivo monitoring, 57,58 thus showing a huge application prospect. SPR is a label-free sensing method, which may report kinetic information on molecular interaction without using chemical labeling/tagging.…”

Section: Optical Biosensorsmentioning

confidence: 99%

State of the art in development of molecularly imprinted biosensors

Li-cheng

Miao

et al. 2021

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Biosensors are a class of smart devices fabricated for target analyte detection. A biosensor is commonly made of three basic components: a specific bioreceptor, a physicochemical transducer, and a signal processing device. The bioreceptor part features one of the more crucial technologies of a biosensor to perform specific detection of analytes. They commonly make use of various molecular recognition elements, such as enzymes, natural receptors, antibodies, nucleic acid aptamers, and even synthetic receptors. Then, the molecular recognition events of these bioreceptors can be translated into readable signals in various forms like electrochemical, optical, piezo/pyro electric, etc. Finally, these signals are mathematically processed for quantitative analysis. Nowadays, the great advances in biomimetic materials, in particular the synthetic receptors based on molecularly imprinted polymers (MIPs), promote tremendous development of biosensors. Integration of this field with artificial intelligence enables emerging design of advanced biosensors, which has moved from concept to implementation, meanwhile facing new opportunities and challenges. With no doubt, bioreceptor innovation based on molecular imprinting is an emerging driving force for biosensors development. In this review paper, we provide an overview of MIP‐based biosensors, and also their challenges and opportunities moving forward toward wearable devices are discussed.

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Section: Optical Biosensorsmentioning

confidence: 99%

State of the art in development of molecularly imprinted biosensors

Li-cheng

Miao

et al. 2021

VIEW

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“…Therefore, it is urgent to develop smart materials with lower detection limits towards HCl vapor. [ 4 ] These smart materials should possess large specific surface area, good gas accessibility, quick responsive time and high sensitivity. In this regard, luminescent metal–organic frameworks (MOFs) with inherent porosity and great synthetic versatility represent one of such ideal smart materials.…”

Section: Introductionmentioning

confidence: 99%

Smart Metal–Organic Frameworks with Reversible Luminescence/Magnetic Switch Behavior for HCl Vapor Detection

Zhu

Zou

et al. 2021

Adv Funct Materials

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Smart luminescent metal-organic frameworks (MOFs) demonstrate promising performance in the detection of toxic gases. The incorporation of twisted or rotary organic ligands with aggregation-induced emission (AIE) characteristics can provide further opportunities in designing such smart MOFs with new topologies and stimuli-responsive behaviors. Herein, novel AIE MOFs are reported with reversible luminescence or a magnetic switch for HCl vapor detection. The twisted conformation of tetrakis(4-carboxyphenyl)ethylene (TCPE) ligand leads to the unique [M + -L-M − -L-M] ∞ (M = metal clusters, L = ligand) configuration for ZnMOF and CoMOF. Different from conventional MOFs with [M-L] ∞ topology, ZnMOF and CoMOF exhibit a blue-to-yellow greenish fluorescence transition and a ferrimagnetic-to-antiferromagnetic switch behavior, respectively, upon recognition of HCl vapor. The adsorbed HCl molecules rather than coordinated ones are determined to be the main reason, and such luminescence and magnetic switch can be induced in a reversible manner via HCl vapor adsorption/desorption processes with high reliability. This work of AIE MOFs with twisted and rotary ligands shall pave new avenue in design of smart MOFs with new topologies and stimuli-responsive behavior for real-time sensing and detection applications.

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“…It is an ideal solid substrate for chemosensor. 9−11 Chemosensor can be physically adsorbed or chemically linked onto electrospun nanofibers. 12−14 In a ENM-immobilized sensor, the chemosensor is responsible to bind with the target substance for sensing, and the ENM provides a large quantity of active sites for chemosensor contacting target substance to improve sensor’s sensibility.…”

Section: Introductionmentioning

confidence: 99%

Poly(aspartic acid) Electrospun Nanofiber Hydrogel Membrane-Based Reusable Colorimetric Sensor for Cu(II) and Fe(III) Detection

Zhang

et al. 2019

ACS Omega

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Electrospun nanofiber membrane (ENM) with huge specific surface area is an ideal solid substrate for sensors. However, only a few ENMs are developed into colorimetric sensors and it is even more challenging to fabricate multiple-ion-responsive ENM-based colorimetric sensor. In this study, benefiting from the excellent metal ion adsorption ability of poly(aspartic acid) (PASP) and high specific surface area of nanofibers, a reusable colorimetric sensor utilizing PASP electrospun nanofiber hydrogel membrane (ENHM) was designed to detect Cu2+ and Fe3+ in aqueous solution with simple filtration. The sensor based on PASP–ENHM exhibited high sensitivity and selectivity, and colorimetric responses for Cu2+ and Fe3+ detection could be observed by the naked eye. Upon exposure to Cu2+ aqueous solution, the color of the sensor changed from white to blue with a naked eye detection limit of 0.3 mg/L, while it turned from white to yellow with a detection limit of 0.1 mg/L for Fe3+ detection. Furthermore, this sensor was reusable after metal ion extraction by the desorption process.

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Stretchable nanofibrous membranes for colorimetric/fluorometric HCl sensing: Highly sensitive charge-transfer excited state

Cited by 35 publications

References 41 publications

State of the art in development of molecularly imprinted biosensors

State of the art in development of molecularly imprinted biosensors

Smart Metal–Organic Frameworks with Reversible Luminescence/Magnetic Switch Behavior for HCl Vapor Detection

Poly(aspartic acid) Electrospun Nanofiber Hydrogel Membrane-Based Reusable Colorimetric Sensor for Cu(II) and Fe(III) Detection

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