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The development of signal amplification systems has attracted much attention and presents a highly challenging objective. Herein, we reveal the amplification processes using a newly synthesized bisthiourea-binaphthyl-polythiophene conjugate. The spectral data, behavior of supramolecular complexation, and thermodynamic parameters with calculation support comprehensively elucidated the factors that control the outcomes of the signal amplification. The present work provides a new perspective on functional chemosensors and an attractive alternative to conventional amplification systems.Micro(nano)plastics (MNPs) are widely acknowledged as global environmental threat while determination methods for MNPs are still lacking and becoming a growing concern. This study provides a novel method for MNPs identification/quantification by matrix-assisted laser desorption/ionization-time-of-flight mass spectrometry (MALDI-TOF MS). Factors affecting the measurement were optimized, including laser energy, matrix (M), analyte (A), cationization agent (C), and MAC volume ratio. Under the optimal conditions, the peaks representative of polystyrene (PS) and polyethylene terephthalate (PET) were identified, and the mass differences were consistent with the molecular weight of the corresponding oligomer. A quantitative correlation was built between normalized signal intensity and ln[polymer concentration] with a correlation coefficient above 0.96 for low-molecular-weight polymers and 0.98 for high-molecular-weight polymers. Furthermore, two types of environmental MNP samples were prepared, including aviation cup particles as fresh plastics and aged MNPs extracted from river sediment. By using MALDI-TOF MS, the PS-related MNPs (in both aviation cup and sediment) consisted of C8H8 and C16H16O oligomers, while the PET-related MNPs (only found in sediment) were identified with repeated units of C10H8O4 and C12H12O4. According to the quantitative correlation curve, the contents of PS and PET MNPs were quantified as 8.56 ± 0.04 and 28.71 ± 0.20 mg·kg-1, respectively, in the collected sediment. This study is the first attempt to propose a quantification method with the employment of MALDI-TOF MS for aged MNPs analysis in environmental samples, which can not only supply an effective method for MNP analysis but also inspire future studies on the in situ distribution and transformation of MNPs in environmental and biological samples.With the aim of exploring and enriching nanocaged functional platforms of lanthanide-organic frameworks, the subtle combination of [Ln2(CO2)8] secondary building units and [Ln(CO2)4] units by employing the hexacarboxylic acid of 4,4',4″-(pyridine-2,4,6-triyl)tris(1,3-benzenedicarboxylic acid) (H6PTTBA) successfully realized the self-assembly of highly robust multifunctional LnIII2LnIII-organic anionic skeletons of (Me2NH2)[Ln3(PTTBA)2]·xDMF·yH2O n (1-Ln), which had remarkable intrinsic nature of high thermal and water stability, large permanent porosity, interconnected nanocaged void volume, and high specific surface area. Here, only the Eu-based framework of 1-Eu was taken as one representative to discuss in detail. Gas-sorption experiments showed that the activated solvent-free 1-Eu framework possessed the outstanding ability to separate the mixed gases of CO2/CH4 (5050, v/v) with an ideal adsorbed solution theory selectivity of 14. Furthermore, 1-Eu was an efficient and recycled catalyst for the chemical cycloaddition of CO2 and epoxides into their corresponding carbonates, which possessed a better catalytic performance than the documented unique Eu3+-organic framework of [Eu(BTB)(phen)] and could be widely applied in industry because of its simple synthetic conditions and high yield. In the meantime, adjustable emission colors devoted by the efficient Tb3+ → Eu3+ energy transfer confirmed that Eu x /Tb1-x-organic framework could be taken as a good substitute for barcode materials by changing the ratio of Eu3+ and Tb3+. Moreover, quantitative luminescence titration experiments exhibited that 1-Eu possessed good selectivity for the identification of Fe3+ in aqueous solution by fluorescence quenching with a low limit of detection value of 6.32 × 10-6 M.Electronic nicotine delivery systems (ENDS), by virtue of their highly engineered construction (plastics, glass, e-liquids), may contain a number of emerging chemicals of concern (ECCs), including phthalates, phenolic compounds, and flame retardants. Current knowledge regarding the safety of ENDS may underestimate the health risks from ECCs. In this study, we examined the types and levels of those three groups of chemicals in the components and parts of ENDS devices, including refill liquids, tanks/cartridges, atomizers, drip tips/mouthpieces, and sealing materials. Our results suggest that phthalates were the most prevalent chemicals in all tested samples, followed by parabens and organophosphate flame retardants (OPFRs). Particularly, all measured chemicals had significantly higher detection rates in cartridges/tanks, drip tips/mouthpieces, and sealing materials in contrast to e-liquids and coil samples. Among all those three types of ENDS components, phthalates generally had the highest concentrations (0.2atory control of the types and levels of ECCs in ENDS products.Soy sauce is a fermented product, and its flavor is a complex mixture of individual senses which, in combination, create a strong palatable condiment for many Eastern and Western dishes. This Review focuses on our existing knowledge of the chemical compounds present in soy sauce and their potential relevance to the flavor profile. Taste is dominated by umami and salty sensations. Free amino acids, nucleotides, and small peptides are among the most important taste-active compounds. Aroma is characterized by caramel-like, floral, smoky, malty, and cooked potato-like odors. Aroma-active volatiles are chemically diverse including acids, alcohols, aldehydes, esters, furanones, pyrazines, and S-compounds. selleck chemicals The origin of all compounds relates to both the raw ingredients and starter cultures used as well as the parameters applied during production. We are only just starting to help develop innovative studies where we can combine different analytical platforms and chemometric analysis to link flavor attributes to chemical composition.