Showing papers in "Talanta in 2019"

TL;DR: The present study suggested promising perspectives of water-compatible eco-friendly DMIP based MSPE-HPLC method for highly effective sample pretreatment and targeted analytes determination in complicated matrices.

TL;DR: The fundamental working principles of the ammonia detection techniques relying on electronics, electrochemistry, tunable diode laser spectroscopy, surface acoustic wave, and field effect transistors are briefly described first, in conjunction with various sensing materials.

TL;DR: CQDs, their structure, and PL characteristics are introduced and recent advances of the application of CQDs in biotechnology, sensors, and CL is comprehensively discussed.

TL;DR: A reliable, convenient and sensitive method was developed for the measurement of SCFA and other volatile compounds in small biological samples using sodium sulfate dehydration pretreatment and BSTFA derivatization-based GC/MS analyses.

TL;DR: Methods based on spectroscopic detection of nitrate have been discussed in this review article due to their easy availability, high sensitivity, low detection limit, economical and facile nature.

TL;DR: A non-invasive textile-based colorimetric sensor for the simultaneous detection of sweat pH and lactate that might open a new avenue for personal health monitoring and medical diagnosis as well as for determining of the physiological conditions of endurance athletes.

TL;DR: P-toluenesulfonic acid-based deep eutectic solvents may have strong potential as promising materials for the green and efficient extraction of pharmaceutical compounds from other plants or fruits.

TL;DR: It is demonstrated that the Au@AgNAs-based SERS method can be used as a simple, rapid and sensitive approach for sensing trace contaminants in food.

TL;DR: Three most common aspects of detection rationale in the POCT are selected to elaborate each kind of detection platforms in this paper: colorimetric assay, luminescent detection and magnetic signal detection.

TL;DR: Results showed that with increase in the KANA concentration, the Raman intensity of Cy3 decreased, and this surface-enhanced Raman spectroscopy-based aptasensor was promising in trace determination of KANA residue.

TL;DR: Although CDs have found many applications in food safety, it is still a challenge to detect a specific target in complex samples, so combination with other biochemistry technology to exploit novel ligands against the specific target with high binding affinity and selectivity is vitally important for developing sensitive and specific sensing probes in the future.

TL;DR: The potential applications of two major NPs for enhancing the SPR signals for the detection of molecular biomarkers, including gold and magnetic NPs are reviewed.

TL;DR: The luminescence mechanism and biosynthesis of Au Nanoclusters is systematically explored, followed by a brief survey of Au nanoclusters applications across the biomedical sector.

TL;DR: Results in this study suggested that the L SPR of the Au core was rapidly attenuated with increasing Ag shell thickness, while the LSPR bands for Ag shell blue-shifted from 390 to 420 nm, indicating that the Au@AgNAs substrate could be potentially used for high-performance SERS sensing applications.

TL;DR: This study provided a rapid and sensitive approach for detecting TBZ in apples based on SERS coupled with GNR array substrate, showing great potential for analyzing other trace contaminants in food matrices.

TL;DR: Instrumental and sample preparation methods for the detection and quantification of the analytes of interest are reviewed, with an emphasis on the sample treatment techniques.

TL;DR: In this paper, a vortex-assisted liquid phase microextraction method was used to pre-concentrate and determine mefenamic acid (MFA) in urine samples.

TL;DR: The method was applied to determine a wide range of PFAS without oxidation as well as ΔPFCA via persulfate oxidation in AFFF-impacted groundwater samples from fire-equipment testing sites in Ontario and Newfoundland, Canada.

TL;DR: A miniaturized and portable UCNP-LFA platform that holds great promise for applications in disease diagnostics, environmental pollution monitoring and food safety at the point of care.

TL;DR: The ability of proposed biosensor to detect PSA and Myo simultaneously with high sensitivity and specificity offers a powerful opportunity for the new generation of biosensors.

TL;DR: B-GQDs are one-step synthesized and serve as the fluorescence probes for the fabrication of sensors towards Fe3+ ion or phosphate (Pi) as well as biosensor towards cytochrome C (Cyt C).

TL;DR: The PGE-glucose sensor had a good selectivity and was not interfered by lactic acid, urea, acetaminophen, uric acid, dopamine and ascorbic acid and exhibited good reproducibility and long-term stability over four weeks.

TL;DR: This paper aims to give a comprehensive overview of what these materials are, why they are proper choices for SPME coatings, and what strengths and drawbacks have been associated with their usage as SPMe coatings.

TL;DR: Special attention will be given to the graphical method, desirability function, multiple response function and chromatographic response functions, since they are more frequently used in the analytical area.

TL;DR: The MIP-membrane-based sensor system provided a convenient point-of-care approach in food safety testing and the possibility to detect the aflatoxin B1 in contaminated food samples was shown.

TL;DR: The proposed study implies the promising prospect of this green and water compatible MIP in highly effective recognition and separation of trace quinolones in complex matrics.

TL;DR: The practicability of SWCNTs array-GCE was evaluated for the selective detection of DA and UA in real sample solutions of human serum and urine and revealed acceptable recovery results, indicating that it might be a promising platform for further biosensor development.

TL;DR: The multiplexing capability of the 'colour-encoded assay' is illustrated by the simultaneous detection of aflatoxin B1 (AFB1) and type-B fumonisins (FMs) in wheat and food products that made with wheat.

TL;DR: A novel, simple and label-free fluorescent aptasensor, based on quaternized tetraphenylethene salt, graphene oxide and AFB1 aptamer, has been constructed to detect AFB1 and is highly selective against other aflatoxins in foods.

TL;DR: The quenching mechanism of N-doped GQDs toward DA is explored from the view of N chemical states, biomolecule structure of DA homologues and redox reaction of DA, and two interesting works are found.