Chemical reactivity under nanoconfinement

Nature Nanotechnology, Journal Year: 2020, Volume and Issue: 15(4), P. 256 - 271

Published: April 1, 2020

Language: Английский

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Semiquantitative Visual Detection of Lead Ions with a Smartphone via a Colorimetric Paper-Based Analytical Device

Analytical Chemistry, Journal Year: 2019, Volume and Issue: 91(14), P. 9292 - 9299

Published: June 20, 2019

A simple, instrument-free, paper-based analytical device with dual-emission carbon dots (CDs) (blue CDs and red CDs) was developed for the semiquantitative, visual, sensitive speciation analysis of lead ions in a real sample detection limit 2.89 nM. When paper strip immersed into solution, blue fluorescence quenched by Pb2+ while served as background reference without color change, significant evolutions from to were observed under ultraviolet lamp, resulting semiquantitative visual detection. Furthermore, smartphone used identifying RGB value fluorescent probe solution corresponding strip. The application smartphones strips has greatly shortened time reduced cost detection, providing new strategy on-site heavy-metal water samples.

Language: Английский

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Applications of MOFs as Luminescent Sensors for Environmental Pollutants

Small, Journal Year: 2021, Volume and Issue: 17(22)

Published: Feb. 26, 2021

Abstract The environmental pollution has become a serious issue because the pollutants can cause permanent damage to DNA, nervous system, and circulating resulting in various incurable diseases, such as organ failure, malformation, angiocardiopathy, cancer. effective detection of is urgently needed keep them far away from daily life. Among reported pollutant sensors, luminescent metal–organic frameworks (LMOFs) with tunable structures have attracted remarkable attention detect their excellent selectivity, sensitivity, recyclability. Although lots framework (MOF)‐based sensors been summarized discussed previous reviews, pollutants, especially radioactive ions heavy metal ions, still not systematically presented. Here, sensing mechanisms construction principles MOFs are discussed, state‐of‐the‐art MOF‐based including pesticides, antibiotics, explosives, VOCs, toxic gas, small molecules, highlighted. This comprehensive review may further guide development promote practical applications for pollutants.

Language: Английский

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Molecular Probes, Chemosensors, and Nanosensors for Optical Detection of Biorelevant Molecules and Ions in Aqueous Media and Biofluids

Chemical Reviews, Journal Year: 2022, Volume and Issue: 122(3), P. 3459 - 3636

Published: Jan. 7, 2022

Synthetic molecular probes, chemosensors, and nanosensors used in combination with innovative assay protocols hold great potential for the development of robust, low-cost, fast-responding sensors that are applicable biofluids (urine, blood, saliva). Particularly, metabolites, neurotransmitters, drugs, inorganic ions is highly desirable due to a lack suitable biosensors. In addition, monitoring analysis metabolic signaling networks cells organisms by optical probes chemosensors becoming increasingly important biology medicine. Thus, new perspectives personalized diagnostics, theranostics, biochemical/medical research will be unlocked when standing limitations artificial binders receptors overcome. this review, we survey synthetic sensing systems have promising (future) application detection small molecules, cations, anions aqueous media biofluids. Special attention was given provide readily measurable signal through dynamic covalent chemistry, supramolecular host-guest interactions, or nanoparticles featuring plasmonic effects. This review shall also enable reader evaluate current performance terms sensitivity selectivity respect practical requirement, thereby inspiring ideas further advanced systems.

Language: Английский

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Conducting Polymers in the Design of Biosensors and Biofuel Cells

Polymers, Journal Year: 2020, Volume and Issue: 13(1), P. 49 - 49

Published: Dec. 25, 2020

Fast and sensitive determination of biologically active compounds is very important in biomedical diagnostics, the food beverage industry, environmental analysis. In this review, most promising directions analytical application conducting polymers (CPs) are outlined. Up to now polyaniline, polypyrrole, polythiophene, poly(3,4-ethylenedioxythiophene) frequently used CPs design sensors biosensors; therefore, main attention paid these polymers. The popular polymerization methods applied for formation polymer layers discussed. applicability polypyrrole-based functional electrochemical biosensors biofuel cells highlighted. Some signal transduction mechanisms CP-based Biocompatibility-related aspects some overviewed insights into coatings implantable addressed. New trends perspectives development based on their composites with other materials

Language: Английский

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Electronic Devices Using Open Framework Materials

Chemical Reviews, Journal Year: 2020, Volume and Issue: 120(16), P. 8581 - 8640

Published: July 21, 2020

Open framework materials (OFM) constitute a large and growing class of nanoporous crystalline structures that is attracting considerable attention for electronic device applications. This review summarizes the most recent reports concerning devices enabled by either two primary categories OFM, metal-organic frameworks (MOFs) covalent-organic (COFs). Devices in which OFM plays an active role (as opposed to acting only as selective sorbent or filter) are principal focus, with examples cited include field-effect transistors, capacitors, memristors, wide variety sensing architectures. As brief tutorial, we also provide concise summary various methods depositing on surfaces, these crucial importance deployment OFM. Finally, offer our perspective future research directions, particularly regarding what view biggest challenges remaining be addressed. On basis literature discussed here, conclude unique characteristics advantages distinct from conventional inorganic semiconductors organic conductors. suggests bright applications such edge computing, resistive switching, mechanically flexible electronics.

Language: Английский

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Supramolecular fluorescent sensors: An historical overview and update

Coordination Chemistry Reviews, Journal Year: 2020, Volume and Issue: 427, P. 213560 - 213560

Published: Sept. 15, 2020

Language: Английский

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Recent Advances in the Development of Materials for Terahertz Metamaterial Sensing

Advanced Optical Materials, Journal Year: 2021, Volume and Issue: 10(1)

Published: Oct. 17, 2021

Abstract Terahertz metamaterial sensing (TMS) is a new interdisciplinary technology. A TMS system employs terahertz waves as the pumping source, these then interact with sample and carry substance information, e.g., refractive index, absorption spectra. These properties are relevant to molecular rotation vibration states produced by surface‐plasmon‐polariton‐like effect. technology usually characterized large penetration depth high sensitivity. Owing advantages, may be used for ultratrace detection consequently has wide range of practical applications in biomedicine, food safety, environmental monitoring, industry agriculture, material characterization, safety inspection. Furthermore, performance determined not only structural topology metamaterials, but also their compositions substrates. This paper reviews essential fundamentals, applications, recent advances focus on influence selection performance. review envisaged key reference developing TMS‐based functional devices enhanced characteristics.

Language: Английский

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Nanomaterials with Supramolecular Assembly Based on AIE Luminogens for Theranostic Applications

Advanced Materials, Journal Year: 2020, Volume and Issue: 32(49)

Published: Nov. 4, 2020

Abstract One of the major pursuits biomedical science is to develop advanced strategies for theranostics, which expected be an effective approach achieving transition from conventional medicine precision medicine. Supramolecular assembly can serve as a powerful tool in development nanotheranostics with accurate imaging tumors and real‐time monitoring therapeutic process upon incorporation aggregation‐induced emission (AIE) ability. AIE luminogens (AIEgens) will not only enable fluorescence but also aid improving efficacy therapies. Furthermore, fluorescent signals performance these nanomaterials manipulated precisely owing reversible stimuli‐responsive characteristics supramolecular systems. Inspired by rapid advances this field, recent research conducted on effect based summarized. Here, three representative are presented follows: a) self‐assembly AIEgens, b) loading AIEgens within nanocarriers assembly, c) macrocycle‐guided via host–guest interactions. Meanwhile, diverse applications such diagnostics therapeutics have been discussed detail. Finally, challenges field listed review.

Language: Английский

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Recent Progress in Functional Materials for Selective Detection and Removal of Mercury(II) Ions

Advanced Functional Materials, Journal Year: 2020, Volume and Issue: 31(1)

Published: Sept. 18, 2020

Abstract Severe disease and environmental pollution derived from heavy metal ions has become one of the major problems in global public health. In particular, mercury(II) as type highly poisonous pollutant can destroy human metabolism, central nervous system, immune representing a critical threat to living systems. Therefore, exploitation new strategies for designing synthesizing eco‐friendly, efficient, economical materials selective detection removal Hg 2+ is great importance. Among various measures sensing, detection, mercury ions, advanced functional systems including nanomaterials, polymers, aggregation‐induced emission luminogens, porous have attracted considerable attention over past years due their capabilities real‐time rapid removal, anti‐interference, quick response, high selectivity, low limit detection. this review, some efficient techniques aqueous solutions using abovementioned are overviewed ways which these material used tackle problem also discussed.

Language: Английский

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