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A Label-free "Lock-key" Fluorescence Aptasensing Based on Triplex-helix DNA and G-quadruplex for CA15-3 Detection

期刊: ANALYTICAL SCIENCES, 2021; 37 (6)

Herein, we designed a label-free fluorescent aptasensor based on triple-helix DNA and G-quadruplex for carbohydrate antigen (CA15-3) detection. The tr......

Cationic Polythiophene-based Colorimetric Assay for Probing the Activity of Protein Kinase A

期刊: ANALYTICAL SCIENCES, 2021; 37 (7)

In this work, a novel colorimetric assay based on polythiophene derivative (PMNT) was designed for the detection of protein kinase A (PKA). PKA can ca......

A Highly Sensitive Label-free Aptasensor Based on Gold Nanourchins and Carbon Nanohorns for the Detection of Lipocalin-2 (LCN-2)

期刊: ANALYTICAL SCIENCES, 2021; 37 (6)

A synergistic nanocomposite film composed of gold nanourchins (AuNU), oxidised carbon nanohorns (CNH), and chitosan functioned as an electrode modifie......

3D-Printed Microfluidic Nanoelectrospray Ionization Source Based on Hydrodynamic Focusing

期刊: ANALYTICAL SCIENCES, 2021; 37 (6)

Nanoelectrospray ionization (nESI) mass spectrometry (MS) is an ideal detection method for microfluidic chips, and its performances depend on nESI emi......

Poly(ethylene glycol) Methyl Ether Methacrylate-bonded Stationary Phase in Ion Chromatography and Its Application to Seawater Samples

期刊: ANALYTICAL SCIENCES, 2021; 37 (7)

A fast and simple ion chromatographic method for the determination of iodide in seawater is reported using poly(ethylene glycol) methyl ether methacry......

Dopamine Functionalized S,N Co-doped Carbon Dots as a Fluorescent Sensor for the Selective Detection of Fe3+ and Fe2+ in Water

期刊: ANALYTICAL SCIENCES, 2021; 37 (6)

In current work, novel functionalized carbon dots have been designed and synthesized by covalently linking dopamine to the surface of S,N co-doped car......

Preparation of a New beta-Cyclodextrin-bonded Chiral Stationary Phase with Thiocarbamated Benzamide Spacer for HPLC

期刊: ANALYTICAL SCIENCES, 2021; 37 (8)

A new beta-cyclodextrin-bonded chiral stationary phase (TCDP) with a thiocarbamated benzamide spacer was prepared and evaluated on HPLC by separating ......

DNA Extraction with TRIzol Reagent Using a Silica Column

期刊: ANALYTICAL SCIENCES, 2021; 37 (7)

TRIzol is a monophasic solution of phenol and guanidine isothiocyanate used for the extraction of RNA, DNA and proteins from tissues or cells. However......

Polymerase/Nicking Enzyme Powered Dual-template Multi-cycle G-Triplex Machine for HIV-1 Determination

期刊: ANALYTICAL SCIENCES, 2021; 37 (8)

We proposed a dual-template, multi-cycle DNA nanomachine driven by polymerase and a nicking enzyme with high efficiency. The reaction system simply co......

Rapid Determination of 7-Hydroxycoumarin Using a Nanogold/Poly-thionine Modified Glass Carbon Electrode

期刊: ANALYTICAL SCIENCES, 2021; 37 (8)

This paper presents a novel voltametric procedure for 7-hydroxycoumarin determination by using a nanogold/polythionine modified electrode. The charact......

Microfluidic Devices for Monitoring the Root Morphology of Arabidopsis Thaliana in situ

期刊: ANALYTICAL SCIENCES, 2021; 37 (4)

Plant roots play critical roles in absorbing nutrients for the growth and development of plants as well as adapting different environments. Currently,......

Determination of the Mono and Dibromo Derivatives Ratio Resulting from Semiconductor Bromination Using Ultraviolet-visible Absorption Spectroscopy and Gaussian Peak Fitting

期刊: ANALYTICAL SCIENCES, 2021; 37 (4)

The chemical-industrial production of organic semiconductors urgently needs a cheap and fast approach to determine the components' proportion of the r......

A Colorimetric Immunosensor Based on Hemin@MI Nanozyme Composites, with Peroxidase-like Activity for Point-of-care Testing of Pathogenic E. coli O157:H7

期刊: ANALYTICAL SCIENCES, 2021; 37 (7)

Recently, nanozymes have become a topic of particular interest due to their high activity level, stability and biocompatibility. In this study, a visu......

Phenanthroline Derivative Fluorescent Probe for Rapid and Sensitive Detection of Silver( I)

期刊: ANALYTICAL SCIENCES, 2021; 37 (6)

In the present work, a phenanthroline derivative (2-(2-methoxyphenyl)-4-phenyl-1,10-phenanthroline, MPP), as a fluorescent probe, was synthesized to r......

Highly Sensitive Electrochemical Detection of Folic Acid by Using a Hollow Carbon Nanospheres@molybdenum Disulfide Modified Electrode

期刊: ANALYTICAL SCIENCES, 2021; 37 (4)

As a nutrient in body functions, folic acid (FA) plays a very important role for human health, and thus developing a highly sensitive method for its d......

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