Author
Jiaying Yan
Bio: Jiaying Yan is an academic researcher from China Three Gorges University. The author has contributed to research in topics: Catalysis & Fluorescence. The author has an hindex of 9, co-authored 30 publications receiving 274 citations.
Topics: Catalysis, Fluorescence, Benzothiazole, Chemistry, Moiety
Papers
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TL;DR: In this paper, a ratiometric fluorescent probe (HBT-FA) based on aza-Cope reaction was designed and synthesized, which showed high selectivity and ratiometric fluorescence response to FA.
Abstract: Developing simple and selective methods for formaldehyde (FA) detection are of great interest, because FA is not only an environmental pollutant, but also an endogenous bioactive molecule. Herein, a new ratiometric fluorescent probe (HBT-FA) based on aza-Cope reaction was designed and synthesized, which showed high selectivity and ratiometric fluorescence response to FA. Furthermore, the probe could detect FA in various medium, such as aqueous solution, serum and air.
98 citations
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TL;DR: In this paper, the synergistic effect between GQDs and TMNPs is explored, and the mechanisms of catalytic hydrolysis of AB and NaBH4 by GQD-TMNPs are proposed.
49 citations
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TL;DR: An efficient and novel 2,5-bis(benzo[d]thiazol-2-yl)phenol scaffold-based ratiometric fluorescent probe BTP-Cys for the sensing of cysteine has been developed and has been successfully constructed on account of the excited state intramolecular proton transfer (ESIPT) mechanism.
41 citations
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TL;DR: In this article, a 2-(2-hydroxyphenyl)benzothiazole dye skeleton (HBT-1) was designed and synthesized for the detection of sulfur dioxide and hydrazine.
37 citations
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TL;DR: Tetraphenylene-chalcones hybrid derivatives have been designed and synthesized, and their optical properties have also been investigated as mentioned in this paper, and it has been further demonstrated that these organic fluorophores can be employed for imaging in living cells.
25 citations
Cited by
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TL;DR: The present review is devoted to summarizing the recent advances (2015–2017) in the field of metal-catalysed group-directed C–H functionalisation.
Abstract: The present review is devoted to summarizing the recent advances (2015-2017) in the field of metal-catalysed group-directed C-H functionalisation In order to clearly showcase the molecular diversity that can now be accessed by means of directed C-H functionalisation, the whole is organized following the directing groups installed on a substrate Its aim is to be a comprehensive reference work, where a specific directing group can be easily found, together with the transformations which have been carried out with it Hence, the primary format of this review is schemes accompanied with a concise explanatory text, in which the directing groups are ordered in sections according to their chemical structure The schemes feature typical substrates used, the products obtained as well as the required reaction conditions Importantly, each example is commented on with respect to the most important positive features and drawbacks, on aspects such as selectivity, substrate scope, reaction conditions, directing group removal, and greenness The targeted readership are both experts in the field of C-H functionalisation chemistry (to provide a comprehensive overview of the progress made in the last years) and, even more so, all organic chemists who want to introduce the C-H functionalisation way of thinking for a design of straightforward, efficient and step-economic synthetic routes towards molecules of interest to them Accordingly, this review should be of particular interest also for scientists from industrial R&D sector Hence, the overall goal of this review is to promote the application of C-H functionalisation reactions outside the research groups dedicated to method development and establishing it as a valuable reaction archetype in contemporary R&D, comparable to the role cross-coupling reactions play to date
1,057 citations
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TL;DR: A pair of first-generation chemiluminescent probes for selective formaldehyde detection and CFAP700 is capable of visualizing FA release derived from endogenous folate metabolism, providing a starting point for the use of CFAPs and related chemical tools to probe FA physiology and pathology.
Abstract: Formaldehyde (FA) is a common environmental toxin that is also produced naturally in the body through a wide range of metabolic and epigenetic processes, motivating the development of new technologies to monitor this reactive carbonyl species (RCS) in living systems. Herein, we report a pair of first-generation chemiluminescent probes for selective formaldehyde detection. Caging phenoxy-dioxetane scaffolds bearing different electron-withdrawing groups with a general 2-aza-Cope reactive formaldehyde trigger provides chemiluminescent formaldehyde probes 540 and 700 (CFAP540 and CFAP700) for visible and near-IR detection of FA in living cells and mice, respectively. In particular, CFAP700 is capable of visualizing FA release derived from endogenous folate metabolism, providing a starting point for the use of CFAPs and related chemical tools to probe FA physiology and pathology, as well as for the development of a broader palette of chemiluminescent activity-based sensing (ABS) probes that can be employed from in vitro biochemical to cell to animal models.
139 citations
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TL;DR: In this paper, the most significant developments in fluorescent probes for the detection of the carbonyl species formaldehyde, carbon monoxide and phosgene in recent years, with a special emphasis on their mechanisms and applications.
133 citations
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05 Jul 2021
TL;DR: Carbon quantum dots (CQDs) have the desirable advantages of low toxicity, environmental friendliness, low cost, photostability, favorable charge transfer with enhanced electronic conductivity, and comparable easy-synthesis protocols.
Abstract: Carbon quantum dots (CQDs) are a class of carbon nanomaterials that have recently gained recognition as current entrants to traditional semiconductor quantum dots. CQDs have the desirable advantages of low toxicity, environmental friendliness, low cost, photostability, favorable charge transfer with enhanced electronic conductivity, and comparable easy-synthesis protocols. This review examines the advancements in CQD research and development, with a focus on their synthesis, functionalization, and energy applications. Initially, various synthesis methods are discussed briefly with pros and cons. Herein, first top-down methods including the arc-discharge technique, laser ablation technique, plasma treatment, ultrasound synthesis technique, electrochemical technique, chemical exfoliation, and combustion were discussed briefly. The later section presents bottom-up (microwave synthesis, hydrothermal synthesis, thermal pyrolysis, and metal–organic framework template-assisted approach) and waste-derived CQD synthesis methods. The next section is focused on the energy applications of CQDs including supercapacitors, lithium-ion batteries, photovoltaics, hydrogen evolution reaction and oxygen evolution reaction. Finally, challenges and future perspectives in this exciting and promising area are presented.
93 citations
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TL;DR: A comprehensive literature review as mentioned in this paper encompassing 871 publications is reported for these essential photophysical parameters, each parameter is determined by measurement with distinct instrumentation and suffers idiosyncratic sources of error.
Abstract: Tetraphenylporphyrin (H2TPP) and zinc tetraphenylporphyrin (ZnTPP) are widely used benchmark molecules in diverse photochemical studies given facile synthetic access, rich visible-region spectra, and broad structural analogy to chlorophylls. Yet the literature values for each key photophysical parameter – the molar absorption coefficient (e), fluorescence quantum yield (Φf), and also singlet excited-state lifetime (τS) – vary over an astonishing range. Here, a comprehensive literature review (∼1940–September 2020) encompassing 871 publications is reported for these essential parameters. Each parameter is determined by measurement with distinct instrumentation and suffers idiosyncratic sources of error. The best values for H2TPP are e = 460,000 cm−1·M−1, Φf = 0.090, and τS = 12.8 ns in Ar- purged toluene (Φf = 0.070, τS = 9.9 ns in toluene in air); the best values for ZnTPP are e = 560,000 cm−1·M−1, Φf = 0.030, and τS = 2.1 ns in Ar-purged toluene (Φf = 0.029, τS = 2.0 ns in toluene in air). The choice of values for such parameters has far-reaching consequences in photochemistry ranging from fluorescence (or Forster) resonance energy transfer (FRET) processes to assessments of molecular brightness.
73 citations