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... The flexible electrochemical sensor is a key component of the health monitoring system which can continuously track the physiological signals of the human body, while there is no obvious discomfort and invasiveness. Therefore, it has great potential in personalized medical testing. However, the development of flexible electrochemical sensors currently faces many difficulties, such as the limitatio ...
sensors (equipment), etc ; brachytherapy; gels; gold; nanogold; Show all 5 Subjects
Abstract:
... Modern radiation therapy workflow involves complex processes intended to maximize the radiation dose delivered to tumors while simultaneously minimizing excess radiation to normal tissues. Safe and accurate delivery of radiation doses is critical to the successful execution of these treatment plans and effective treatment outcomes. Given extensive differences in existing dosimeters, the choice of ...
sensors (equipment), etc ; nanomaterials; planting; sustainable agriculture; Show all 4 Subjects
Abstract:
... Nano-enabled agriculture is now receiving increasing attentions. Among the used nanomaterials, carbon-based nanomaterials are good candidates for sustainable agriculture. Previous review papers about the role of carbon-based nanomaterials in agriculture are either focused on one type of carbon-based nanomaterial or lack systematic discussion of the potential wide applications in agriculture. In th ...
sensors (equipment), etc ; analytical chemistry; chemical species; electrochemistry; Show all 4 Subjects
Abstract:
... Electrochemical sensor has been regarded as a promising tool for highly sensitive and selective detection of analytes due to rapid response, easy operation and miniaturization. Nevertheless, traditional sensors require the immobilization of electroactive dyes and recognizable elements, which are laborious, take time and distort the activity of bio-recognizable elements. Homogeneous strategy is a p ...
sensors (equipment), etc ; DNA; DNA probes; biocompatibility; exosomes; pH; Show all 6 Subjects
Abstract:
... We propose an azoreductase and pH dual-responsive amphiphilic pyramidal tetrahedral DNA probe to construct a circulating exosome-surface anchored nanosensor for microenvironment monitoring in vivo. Based on the shuttle behavior, biocompatibility of the exosomes, and easy synthesis and modification of nucleic acids, both in vitro and in vivo results demonstrate that this nanosensor has excellent pe ...
sensors (equipment), etc ; biocompatibility; color; fluorescence; graphene oxide; pH; Show all 6 Subjects
Abstract:
... Intracellular pH (pHi) is very essential for the function of cells and organisms. Thus, it is of great scientific and technical significance to develop nanosensors for probing pHi. In this work, nitrogen-doped graphene oxide quantum dots (N-GOQDs) with fluorescent efficiency of 54% are prepared. The fluorescent spectrum excited at 340 nm contains two remarkable bands at 430 and 520 nm. Interesting ...
sensors (equipment), etc ; detection limit; pH; schiff bases; uranium; Show all 5 Subjects
Abstract:
... The significance of reliable monitoring of uranium levels in water recourses calls for the development of time-saving, robust, and accurate methods for its estimation. In this view, the current study describes the design and analytical parameters of a potentiometric membrane sensor for uranium(vi) ions. The sensor is based on a new Schiff base derivative, as an ionophore, that was synthesized and ...
sensors (equipment), etc ; adsorption; carbon dioxide; chemical species; energy; triazines; Show all 6 Subjects
Abstract:
... In the current study, a covalent triazine framework (CTF-0) was evaluated as an electrochemical sensor against industrial pollutants i.e., O₃, NO, SO₂, SO₃, and CO₂. The deep understanding of analytes@CTF-0 complexation was acquired by interaction energy, NCI, QTAIM, SAPT0, EDD, NBO and FMO analyses. The outcome of interaction energy analyses clearly indicates that all the analytes are physiosorbe ...
sensors (equipment), etc ; detection limit; electrochemistry; food chemistry; hydrogen peroxide; Show all 5 Subjects
Abstract:
... Hydrogen peroxide is an active mediator in biological processes and thus the detection of hydrogen peroxide is necessary for the foods, medicals, pharmaceutical, and chemical industries. Compared with the traditional methods, the electrochemical sensor is investigated as a sensitive, efficient, and time-saving method for the detection of hydrogen peroxide. In order to update the latest research, t ...
sensors (equipment), etc ; bioassays; biomarkers; chemistry; prostatic neoplasms; surface area; Show all 6 Subjects
Abstract:
... Despite the significant progress in the discovery of biomarkers and the exploitation of technologies for prostate cancer (PCa) detection and diagnosis, the initial screening of these PCa-related biomarkers using current technologies is always demanded with a bioassay or probe with high sensitivity, specificity, and noninvasiveness. Nanomaterials have emerged as novel alternative probes for PCa det ...
sensors (equipment), etc ; detection limit; fluorescence; hydrazine; temperature; trypsin; wavelengths; Show all 7 Subjects
Abstract:
... Herein, a platform for sensitive fluorescence sensing of morin was developed based on the copper nanoclusters, which was carried out by using a one-pot method. The copper nanoclusters (Trypsin@Cu NCs) were fabricated through CuCl₂ as a metal precursor, trypsin as a protective agent and hydrazine hydrate as a reducing agent. The Trypsin@Cu NCs exhibited blue fluorescence under the excitation wavele ...
sensors (equipment), etc ; detection limit; electrochemistry; electrodes; methanol; oxidation; platinum; thiols; Show all 8 Subjects
Abstract:
... The methanol oxidation reaction (MOR) has recently gained a lot of attention due to its application in fuel cells and electrochemical sensors. To enhance the MOR, noble metal nanoparticles should be homogeneously dispersed on the electrode surface with the aid of one suitable support. In this work, 4-aminothiophenol (4-ATP) molecules which contain simultaneously amine and thiol groups were electro ...
sensors (equipment), etc ; detection limit; florfenicol; food chemistry; immunoassays; milk; models; Show all 7 Subjects
Abstract:
... Surface Enhanced Raman Spectroscopy (SERS) is a highly sensitive detection method, however, it is still challenging to directly detect florfenicol due to its low Raman activity. To solve this problem, we present a novel sensor for selective detection of florfenicol residue in milk using gap-enhance Raman tags (GERTs) competitive immunoassay. In this nanosensor, Raman reporters 4-mercaptobenzoic ac ...
sensors (equipment), etc ; crystallization; electrochemistry; humans; lactic acid; pH; polyaniline; sweat; Show all 8 Subjects
Abstract:
... A flexible dual functional electrochemical sensor based on macroscopic polyaniline (PANI) film is reported. The PANI film is prepared by interfacial synthesis without any additional templates and surfactants, and is easily transferred from the water surface to any substrate. The surface of PANI film is flat and has a certain degree of crystallization. The PANI film exhibits good electrochemical pr ...
sensors (equipment), etc ; colorimetry; electrochemiluminescence; environment; fluorescence; graphene; humans; metabolism; photoluminescence; Show all 9 Subjects
Abstract:
... Residual antibiotics in food products originated from administration of the antibiotics to animals may be accumulated through food metabolism in the human body and endanger safety and health. Thus, developing a prompt and accurate way for detection of antibiotics is a crucial issue. The zero-dimensional fluorescent probes including metals based, carbon and graphene quantum dots (QDs), are highly s ...
sensors (equipment), etc ; aminophenols; detection limit; dissociation; electrodes; food chemistry; nanogold; Show all 7 Subjects
Abstract:
... A novel ratiometric strategy based electrochemical sensor was developed to quantitative assay of H₂O₂ in different food samples. 4-aminophenylboronic acid pinacol ester (ABAPE) dissociation was specifically triggered by H₂O₂ to generate electro-active 4-aminophenol (4-AP), which not only can be oxidized to indirectly indicate the concentration of H₂O₂, but also endowed the sensor with high selecti ...
sensors (equipment), etc ; detection limit; dyes; electrodes; graphene; oxidation; toxicity; toxicology; voltammetry; Show all 9 Subjects
Abstract:
... This work presented a particular electrochemical sensor for analysis of amaranth, an azo toxic dye. A graphite nitride carbon (g-C₃N₄) was used to modify an electro-treated screen-printed electrode (g-C₃N₄/SPE) for electroanalysis of amaranth. Physicochemical characteristics and analytical performance of g-C₃N₄/SPE were investigated by relevant equipment. The g-C₃N₄/SPE when comparing with bare SP ...
sensors (equipment), etc ; anthrax; aqueous solutions; biomarkers; coordination polymers; detection limit; luminescence; Show all 7 Subjects
Abstract:
... Herein, an Ir(iii) complex-doped coordination polymer network (Ir(iii)@GMP–Eu³⁺) is fabricated for the first time for the ratiometric luminescent detection of the anthrax biomarker 2,6-dipicolinic acid (DPA) through the analysis of time-resolved emission spectra (TRES). The linear detection range is from 10 nM to 5 μM with a detection limit of 3.3 nM in aqueous solution. Attributed to the long lif ...
sensors (equipment), etc ; biomarkers; cardiovascular diseases; disease detection; electrochemistry; morbidity; mortality; prediction; Show all 8 Subjects
Abstract:
... Cardiovascular diseases (CVDs) are a leading cause of morbidity and mortality around the world. The physiological or pathological processes of CVDs can be well indicated by timely and accurate diagnosis of relevant biomarkers and function parameters. Nanosensors integrating the advantages of nanomaterials and sensing platforms have shown good potential for rapid diagnosis of CVDs, especially for e ...
sensors (equipment), etc ; Lycium; ascorbic acid; detection limit; fluorescence; food chemistry; lakes; Show all 7 Subjects
Abstract:
... A green and facile hydrothermal synthesis approach is proposed for the preparation of nitrogen-doped carbon quantum dots (N-CQDs) with wolfberry. These N-CQDs were developed as a highly sensitive fluorescent ‘on-off-on’ switch sensor for the sensing of Fe³⁺ and l-ascorbic acid (AA). The N-CQDs displayed superior fluorescence characteristics of CQDs with a quantum yield up to 22%. The N-CQDs were d ...