Yuan Yanan

• Beijing University of Technology

Seabuckthorn seed meal (SSM) is a by‐product of the oil extraction process from seabuckthorn seeds. Despite its high protein content, SSM remains largely underutilized. This study aimed to extract seabuckthorn seed meal protein peptides (SSPPs) with hypoglycemic activity and investigate their mechanism of action. The optimized conditions yielded a...

The Magneto-Optical Kerr Effect (MOKE) is a fundamental tool in magnetometry, pivotal for advancing research in optics, magnetism, and spintronics as a direct probe of magnetization. Traditional MOKE measurements primarily detect the magnetization components parallel to the Poynting vector, which can only access the magnitude but not the direction...

In this study, the polysaccharide (RHCP) extracted from Houttuynia cordata rhizome was acetylated through the acetic anhydride method. The physicochemical properties of RHCP and its acetylated derivatives (Ac‐RHCP) were determined by infrared spectra, scanning electron microscopy, and Congo red test. Meanwhile, the α‐glucosidase inhibition mechanis...

This study presents a novel environmentally friendly approach for synthesizing a water-compatible superhydrophilic molecularly imprinted resin on graphene oxide (SMIR/PGO). In the design of SMIR/PGO, dopamine (DA) serves a dual...

2D magnets have recently drawn enormous interest. As an air‐stable A‐type van der Waals antiferromagnet (AFM), CrSBr has attracted great attention but has also led to controversies about its large‐span ordering temperatures. Herein, a systematic study of the magnetic phase transition in single‐crystalline CrSBr with ultrahigh‐quality through surfac...

The advent of van der Waals (vdW) ferromagnetic (FM) and antiferromagnetic (AFM) materials offers unprecedented opportunities for spintronics and magneto‐optic devices. Combining magnetic Kerr microscopy and density functional theory calculations, the AFM‐FM transition is investigated and a surprising abnormal magneto‐optic anisotropy in vdW CrSBr...

The creation of van der Waals (vdW) ferromagnets with tunable Curie temperature (TC) and magnetic anisotropy is essential in developing vdW magnet-based devices. Here, we report an effective and reliable method for modulating the magnetic properties of vdW Fe5GeTe2 by site-specific Ga+ implantation. In this study, we report an easy axis in the ab-p...

Edible chrysanthemum is a common food resource for tea and functional foods with potential benefits for human health. Studies have indicated that chrysanthemum has the potential effect on inflammatory diseases, while the effects on gouty inflammation remain underexplored. The present study aimed to investigate the anti-gout activity and characteriz...

Osimertinib (OSIM) is widely used as a mainstream drug for the treatment of non-small cell lung cancer (NSCLC). However, the lack of a rapid extraction and detection method for OSIM and its metabolite, AZ-5104, has limited clinical drug metabolism and drug resistance research because the drug is unstable. In this study, a new ionic liquid hybrid hi...

Based on the adhesion and surface properties of Lactobacillus acidophilus NCFM, five common polyphenols in fruits and vegetables, including resveratrol, epicatechin, quercetin, hesperidin, and caffeic acid, were screened, and the reasons for resveratrol promoting adhesion were systematically explained. The results showed that resveratrol could sign...

Based on the adhesion and surface properties of Lactobacillus acidophilus NCFM, five common polyphenols in fruits and vegetables were screened, and the reasons for resveratrol promoting adhesion were systematically explained. The effects of resveratrol, epicatechin, quercetin, hesperidin and caffeic acid on adhesion and surface properties of NCFM w...

The Fe(III)-S(IV) system used for advanced oxidation processes (AOPs) at acidic pH has just been proposed and demonstrated valid for very few contaminants in the last several years. In this work, we investigated the effect of ultraviolet A (UVA) radiation on the degradation efficiency of the Fe(III)/S(IV) system at near-neutral pH. Paracetamol (PAR...

The extraction, enrichment, and highly sensitive determination of trace components in complex matrices has always been a difficult and hot issue in the field of analytical chemistry, involving environmental pollution monitoring, food and drug safety analysis, and biological sample determination, which is related to human health closely. It is neces...

Indole-3-carbinol (I3C), an important anticancer compound found in broccoli, has attracted considerable attention. The rapid extraction and accurate analysis of I3C in the pharmaceutical industry in broccoli is challenging as I3C is unstable at low pH and high temperature. In this study, a rapid, accurate, and low-cost ultrasound-assisted dispersiv...

This paper reports a selective, sensitive, and miniaturized analytical method based on a molecularly imprinted graphene oxide (MIP-GO) composite as adsorbent for miniaturized tip solid-phase extraction (MTSPE) to determine naphthalene-derived plant growth regulators (PGRs) in apples. The proposed method combines the advantages of MIP-GOs (high sele...

The Chinese Yam (Dioscorea opposita) is cultivated widely in China. However, there are potential safety risks associated with herbicide residues in Chinese Yam because of its characteristics and unregulated use of pesticides. We developed an efficient sample preparation technique for simultaneous analysis of atrazine and its degradation products in...

A deep eutectic solvent functionalized graphene oxide composite adsorbent (DFG) was synthesized through reversible-addition fragmentation chain-transfer polymerization. The synthesized DFG had multiple adsorption interactions after covalent modification with a deep eutectic solvent (allyltriethylammonium bromide/ethylene glycol). Adsorption isother...

Due to the excessive use of pesticides, which presents a threat to public health, large quantities of vegetables and fruits need to be analyzed. Herein, a rapid, low-cost, miniaturized ultrasound-assisted dispersive-filter extraction (UADFE), coupled with high-performance liquid chromatography (HPLC) was developed for the first time to determine ph...

The illegal use of β-agonists often endangers animal-derived food safety. In this study, a selective detection method for β-agonists in swine urine was established via the combination of polymeric ionic liquid-molecularly imprinted graphene oxide-miniaturized pipette tip solid-phase extraction and high-performance liquid chromatography. It is worth...

In the recent years, sulfite-induced oxidation of various contaminants using oxysulfur radicals (SO4[rad]−, SO5[rad]− and SO3[rad]−) has been explored to establish novel advanced oxidation processes (AOPs). Although transition metals, such as cupric ions (Cu(II)), have been demonstrated to be capable of activating sulfite (S(IV)), the catalytic mec...

In this paper, the efficiency of Fe(III)-S(IV) system used for advanced oxidation processes (AOPs) has been investigated using aniline as a pollutant model compound in water. The chemical kinetics, influencing factors, and mechanism of aniline oxidation are examined with an emphasis on the contribution of the different oxysulfur radicals (mainly SO...

The illegal addition and abuse of 17β-estradiol (E2) in food has led to its accumulation in the body through the food chain, resulting in adverse effects on the human body through interference with the endocrine system. Because milk and dairy products are major components of the human diet, screening as well as quantitative analysis of E2 in these...

The synthesis of biomacromolecule imprinted materials is a challenge with the bulkiness and instability of macromolecule, such as protein. A green strategy to prepare hydrophilic protein-imprinted resin (HPIR) was firstly developed using resorcinol and melamine as double functional monomers, hexamethylenetetramine instead of formaldehyde as crossli...

A new ionic liquid functionalized graphene-pipette-tip solid-phase extraction method coupled with high-performance liquid chromatography was established for the simultaneous extraction and determination of three auxins in soybean sprouts. The graphene adsorbent, with multiple adsorption mechanisms, was first synthesized by functional modification o...

In this study we have investigated the efficiency Cobalt (II) (Co(II)) for the activation of sulfite ions following the oxidation of paracetamol used as model contaminants. Physico-chemical parameters that can impact the paracetamol degradation (pH, initial paracetamol concentration, Co(II)/S(IV) molar ratio, oxygen concentration) and contribution...

A new ionic liquid-magnetic graphene (IL-MG) composite was used as the adsorbent in magnetic dispersive solid-phase extraction to rapid extract and isolate triazine herbicides from surface water. IL-MG was synthesized by a simple and time-saving one-pot strategy that the synthesis of magnetic Fe3O4, the modification with IL, and the reduction of gr...

A fluffy porous ethylenediamine-connected graphene/carbon nanotube composite (EGC), prepared by a simple and time-saving one-pot synthesis, was successfully applied as an adsorbent in pipette-tip solid-phase extraction (PT-SPE) for the rapid extraction and determination of clenbuterol (CLB) from pork. In the one-pot synthesis, carbon nanotubes were...

Heterogeneous catalytic activation is important for potential application of new sulfate-radical-based advanced oxidation process using sulfite as source of sulfate radical. We report herein a heterogeneous system for sulfite activation by CoFe2O4 nanocatalyst for metoprolol removal. Factors that influence metoprolol removal were investigated, incl...

A new type of amine-terminated-ionic-liquid-functionalized graphene/multi-walled carbon nanotube hybrid material (IL-G/MWCNTs) was synthesized and used as an adsorbent in miniaturized pipette-tip solid-phase extraction (PT-SPE) coupled with liquid chromatography for the isolation and determination of (Z)–3–(chloromethylene)–6–fluorothiochroman–4–on...

A rapid method for solid-phase extraction (SPE) and quantitation of the non-steroidal anti-inflammatory drugs indometacin and acemetacin in urine was developed. SPE is based in of the use of a reduced graphene oxide (rGO) in a pipette tip, and separation and quantitation is based on HPLC with a Promosil C18 column and UV detection. The amount of so...

Transformation of inorganic arsenic species has drawn great concern in recent decades because of worldwide and speciation-dependent pollution and the hazards that they pose to the environment and to human health. As(III) photooxidation in aquatic systems has received much attention, but little is known about photochemical transformation of arsenic...

A new type of ionic liquid-molecularly imprinted polymers (IL-MIPs) synthesized by precipitation polymerization using 1-allyl-3-methylimidazolium bromide and acrylamide as co-functional monomers and (Z)-6-fluoro-3-(hydroxymethylene)-thiochroman-4-one (FHO) as dummy template was successfully applied as a selective adsorbent of pipette tip solid-phas...

Microparticles were synthesized by suspension copolymerization of the synthetic ionic liquid (IL) 1-allyl-3-methyl-imidazolium bromide with ethylene glycol dimethacrylate. The particles have a regular spherical shape and an average diameter of 65 ± 24 μm. Their affinity for the fluoroquinolone antibiotics ofloxacin (OFL), lomefloxacin (LOM) and cip...

The Fe(III)-sulfite system has been regarded as a new alternative for the systems containing persulfate or peroxymonosulfate in the oxidation of organic contaminants in water or wastewater. Here, a detailed theoretical analysis was made on the inhibitory activities of the inhibitors (ethanol, tert-butyl alcohol, 1-hexanol, aniline, diphenylamine, a...

A pipette-tip solid-phase extraction (PT–SPE) method using a sol–gel hybrid adsorbent has been developed. The method could be used for rapid screening of vegetable matrices for cyanazine and atrazine; assay of cucumbers is reported as an example. The sol–gel hybrid adsorbent was synthesized from tetraethyl orthosilicate (TEOS) as the precursor and...

A new material, graphene oxide/polypyrrole (GO/Ppy), was synthesized by mixing graphene oxide and polypyrrole in a specific proportion. It possesses a unique structure similar to that of foam. A home-made pipette-tip solid-phase extraction (PT-SPE) device, which is more simple and convenient than traditional devices, was used for saving reagents an...