The removal of oil and organic pollutants from water is highly desired due to frequent spill accidents, as well the increase industrial oily wastewater. Here, superhydrophobic superoleophilic textile has been successfully prepared for application effective oil/water separation selective adsorption. This was fabricated by functionalizing commercial with layered double hydroxide (LDH) microcrystals low surface energy molecules. LDH were immobilized on microfibers through an in situ growth...

The phosphorylation of nucleic acid catalyzed by polynucleotide kinase is an indispensible procedure involved in many vital cellular activities such as DNA recombination and repair. Herein, a novel strategy for the sensitive determination T4 (PNK) activity inhibition was proposed, which combined exonuclease enzyme reaction bimolecular beacons (bi-MBs)-based signal amplification. A hairpin probe (HP) with 5'-hydroxyl termini two different types molecular (MBs), MB1 MB2, designed. Taking...

A colorimetric assay based on an enzyme-inhibition strategy is promising for the on-site detection of pesticide residues. Due to high cost and low stability enzymes, nanozymes (nanomaterials with enzyme-like activities) are widely developed as substitutes enzymes. However, inhibition pesticides toward enzymes generally lacks selectivity. It great significance challenge design a specific activity-inhibition strategy. Here, we discovered that iridium nanoparticles possess both peroxidase-like...

One common form of DNA damage is the oxidation guanine to 8-oxo-7,8-dihydroguanine (8-oxoG), which can be carcinogenic. Human 8-oxoguanine glycosylase (hOGG1) a key base excision repair (BER) enzyme that repairs 8-oxoG, and expression level hOGG1 closely related many types human cancers. Herein, novel highly sensitive fluorescence biosensing platform for activity detection has been constructed based on autonomous exonuclease III (Exo III)-assisted signal amplification. Two hairpin probes...

Various aggregation-induced emission luminogens (AIEgens) have been developed and applied in different areas recent years. However, AIEgens generally can aggregate emit strong fluorescence aqueous solution even containing DNA other biomacromolecules because of poor water solubility, restricting their application biosensing bioimaging solution. Moreover, the great majority commonly suffer from complex organic synthesis, environmental damage, biological toxicity. In this work, jatrorrhizine...

Abstract In the present study, three types of coloured fibre cottons, i.e. white, brown and green, were compared for their quality yield. The comparison suggested that cotton was inferior as with white cotton. To understand effect cellulose, mineral elements [nitrogen (N), phosphorus (P) potassium (K)] pH cells on fibre, these components studied at different cell developed stages in all types. cellulose content is closely associated fibre. higher might be result high it A rapid slow decrease...

Phosphate-containing molecules exist in many forms biology and the environment, their interaction with metal oxides is an important aspect of chemistry biochemistry. In this work, phosphates different degrees polymerization (e.g., orthophosphate, pyrophosphate (PPi), sodium triphosphate (STPP), trimetaphosphate (STMP), polyphosphate 25 phosphate units) one or two capping groups were studied. CeO2 nanoparticles (nanoceria) used as a model oxide. DNA also polyphosphate, fluorescently labeled...

In the present study, a versatile "signal-on" electrochemical aptasensor based on triple-helix molecular switch has been developed. An aptamer probe is designed to hybridize with methylene blue (MB)-modified DNA capture immobilized gold electrode form rigid DNA, impeding efficient electron transfer of MB and resulting in decreased oxidation peak current MB. However, upon introduction perfectly matched target, for example, human α-thrombin (Tmb), interaction between Tmb leads dissociation...

As a type of aggregation-induced emission (AIE) fluorescent probe, tetraphenylvinyl (TPE) or its derivatives are widely used in chemical imaging, biosensing and medical diagnosis. However, most studies have focused on molecular modification functionalization AIE to enhance the fluorescence intensity. There few interaction between luminogens (AIEgens) nucleic acids, which was investigated this paper. Experimental results showed formation complex AIE/DNA, leading quenching molecules....

A homogeneous electrochemical strategy for the detection of organophosphorus pesticides based on inhibition acetylcholinesterase activity and configuration change hairpin DNA probes was developed.

A label-free, versatile and low-background chemiluminescence (CL) sensing strategy based on gold nanocluster catalysis combined with the separation of magnetic beads (MBs) was developed. Kanamycin selected as target analyte to exhibit analytical performance this platform. Two single-stranded DNA (named DNA1 DNA2) are ingeniously designed. DNA1, containing an aptamer sequence targets, firstly immobilized MBs which were modified many amino groups by amidation reaction. DNA2 consists 30 repeat...