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A reusable colorimetric assay based on mixed valence state Ce-MOF@Pt nanoparticles for highly sensitive detection of visfatin

期刊: ANALYTICA CHIMICA ACTA, 2021; 1146 ()

In this work, a colorimetric assay for visfatin detection is described. The mixed valence state Ce-MOF (MVCM) modified by platinum nanoparticles (Pt N......

A colorimetric sensor for acid phosphatase activity detection based on acridone derivative as visible-light-stimulated oxidase mimic

期刊: ANALYTICA CHIMICA ACTA, 2021; 1155 ()

Currently, organic artificial enzymes as biocatalysts have been extensively used to construct various colorimetric sensors. However, exploiting a pote......

UiO-66 metal-organic frameworks gold nanoparticles based substrates for SERS analysis of food samples

期刊: ANALYTICA CHIMICA ACTA, 2021; 1161 ()

Recently, metal-organic frameworks (MOFs) based substrates have shown great potential for the quantitative analysis of food samples by surface-enhance......

Towards highly specific aptamer-affinity monolithic column by efficient UV light-initiated polymerization in "one-pot"

期刊: ANALYTICA CHIMICA ACTA, 2021; 1165 ()

Time-consuming or tedious operation in multiple-step process might is the obstacle for efficiently preparing aptamer-affinity monolithic column. Here,......

An exonuclease protection and CRISPR/Cas12a integrated biosensor for the turn-on detection of transcription factors in cancer cells

期刊: ANALYTICA CHIMICA ACTA, 2021; 1165 ()

Transcription factors (TFs) are critical proteins that regulate the expression of genes, and the abnormal change of TFs levels is directly related to ......

Diltiazem-imprinted porphyrinic covalent organic frameworks as solid-phase extractants and fluorescent sensors

期刊: ANALYTICA CHIMICA ACTA, 2021; 1168 ()

Diltiazem, which is a calcium channel blocker, is involved in the formation of covalent organic frameworks (COFs) through the Schiff base reaction of ......

Fabrication of large size individual octahedral tungsten oxide hydrate and Au NPs as SERS platforms for sensitive detection of cytochrome C

期刊: ANALYTICA CHIMICA ACTA, 2021; 1174 ()

Surface-enhanced Raman scattering (SERS) has attracted much attention with its powerful trace detection and analysis capabilities, especially biologic......

Novel preparation method of bipedal DNA walker based on hybridization chain reaction for ultrasensitive DNA biosensing

期刊: ANALYTICA CHIMICA ACTA, 2021; 1176 ()

In this work, a novel strategy for preparation of bipedal DNA walker (BDW) based on hybridization chain reaction (HCR) with the assistance of Exonucle......

Capillary electrophoresis of DNA with high resolution based on copoly(pentaerythritoltetra succinimidylcarboxypentyl/aminopropyl polyoxyethylene) hydrogel

期刊: ANALYTICA CHIMICA ACTA, 2021; 1178 ()

Capillary gel electrophoresis is widely applied for determination of sequence and size of DNA, in which the sieving gel plays an unignorable role. Her......

A signal-off fluorescent strategy for deferasirox effective detection using carbon dots as probe and Cu2+as medium

期刊: ANALYTICA CHIMICA ACTA, 2021; 1179 ()

The content of deferasirox (DEF) in plasma is significant in b-thalassemia patient that needs long-term transfusion therapy, while the effective and s......

A novel fluorescent platform of DNA-stabilized silver nanoclusters based on exonuclease III amplification-assisted detection of Salmonella Typhimurium

期刊: ANALYTICA CHIMICA ACTA, 2021; 1181 ()

A novel fluorescent platform of DNA-stabilized silver nanoclusters (DNA-AgNCs) has been developed based on exonuclease III (Exo III) amplification-ass......

Label-free detection of exosomes based on ssDNA-modulated oxidase-mimicking activity of CuCo2O4 nanorods

期刊: ANALYTICA CHIMICA ACTA, 2021; 1145 ()

A label-free method for exosome detection was proposed. It is based on the target-responsive controllability of oxidase-like activity of Cu/Co bimetal......

A single-nanozyme colorimetric array based on target-induced differential surface passivation for quantification and discrimination of Cl-, Br- and I- ions

期刊: ANALYTICA CHIMICA ACTA, 2021; 1160 ()

Abnormal levels of halide ions in drinking water have enormous threats to human health, and thus designing reliable and sensitive methods to quantify ......

Accurate nucleic acid quantification in a single sample tube without the need for calibration

期刊: ANALYTICA CHIMICA ACTA, 2021; 1167 ()

Convenient and accurate nucleic acid quantification (NAQ) is crucial to clinical diagnosis, forensic medicine, veterinary medicine and food analysis. ......

Molecular engineering of a near-infrared fluorescent ligand for tracking mitochondrial DNA G-quadruplexes

期刊: ANALYTICA CHIMICA ACTA, 2021; 1169 ()

G-quadruplexes are supposed to exist in mitochondrial DNA, which may participate in the regulation of mitochondrial metabolism. However, their formati......

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