Natural photosensitizers offer promising and sustainable solutions to the challenges of food preservation. This study investigates the potential of chlorogenic acid (CA), a naturally occurring phenolic compound with dual photoactive and antimicrobial properties. Under Xenon lamp irradiation (100 mW/cm), CA at a concentration of 0.
View Article and Find Full Text PDFProbiotic powder using a single protective method during freeze-drying is insufficient vitality because it lacks adequate protection. Here we developed a protection strategy through biointerfacial phenolic self-assembly to enhance the protection of excipients for probiotics to address existing challenges during freeze-drying. This strategy could strengthen the connections of excipients and phenolic protective layers containing hydroxyl groups with water molecules, improving the hydration layer's preservation and shielding bacteria from damage.
View Article and Find Full Text PDFActive food packaging film with light-driven antibacterial properties has inspired numerous interests for food preservation, while efficiently retains the photocatalytic ability remains highly challenging. This study pioneered an advanced visible light-driven photodynamic antibacterial packaging film (FZ-PC) employing an organic-inorganic hybrid strategy, meticulously engineering flower-like zinc oxide functional fillers (FZnO) with superior photoactivity and subsequently formulating a polyvinyl alcohol/sodium carboxymethyl cellulose (PC) mixed film matrix to enhance its physical and chemical properties. The boosting photodynamic activity of the FZnO results from the molecular-level optimization through citral modification.
View Article and Find Full Text PDFBacterial infections accompanied by excessive inflammatory responses and bleeding can significantly impede wound healing, with biofilms further complicating treatment and reducing its effectiveness. Herein, an intelligent carbon monoxide (CO) gas-releasing and hemostatic hydrogel was developed, composed of carboxymethyl chitosan (CMCS), hyaluronic acid (HA), copper-doped mesoporous Prussian blue nanoparticles (named as Cu-HMPB NPs), luteolin, and Mn(CO), through chemical and physical cross-linking. Cu-HMPB is loaded with luteolin, a natural flavonoid, and covalently bonded with the temperature-sensitive CO donor Mn(CO).
View Article and Find Full Text PDF2-Ethylhexyl-diphenyl phosphate (EHDPP) is an organophosphate ester (OPE) with roles of flame retardant and plasticizer. It is widely used in various applications, detected in environmental matrices and human body, threatening ecological environment and human health. Some OPEs have been reported to disturb the gut microbiota, the gut microbiota mediates placental function.
View Article and Find Full Text PDFFullerenols, a water-soluble polyhydroxy derivative of fullerene, hold promise in medical and materials science due to their unique properties. However, concerns about their potential embryotoxicity remain. Using a pregnancy mouse model and metabolomics analysis, our findings reveal that fullerenols exposure during pregnancy not only significantly reduced mice placental weight and villi thickness, but also altered the classes and concentrations of metabolites in the mouse placenta.
View Article and Find Full Text PDFChallenges emerge in the quest for highly efficient and biocompatible coatings to tackle microbial contamination. Here, we propose a bioinspired paradigm combining (-)-epigallocatechin gallate (EGCG) and l-arginine surfactants (LAM) as all-green building blocks for advanced coatings with superior performance. Molecular dynamics simulations reveal the natural assembly process of the EGCG/LAM supramolecular nanoparticles (ELA NPs).
View Article and Find Full Text PDFThis study has developed a pressure sensor array based on four functionalized DNA-nanoenzymes with catalase-like activity for multiple detections of foodborne pathogens through a portable pressure manometer. Benefiting from functionalization of 4-mercaptophenylboronic acid and β-mercaptoethylamine, the diversity of nonspecific interactions between four DNA-nanoenzymes and each of the nine bacteria leads to differences in pressure response patterns by catalyzing HO to generate exclusive "fingerprints". As effective statistical tools for processing multivariate data, principal component analysis and hierarchical clustering analysis are employed to identify nine foodborne pathogens by analyzing pressure response patterns.
View Article and Find Full Text PDFThis work pioneered an innovative visible light-powered, self-cascading peroxide antimicrobial packaging system (RPFe-CS), featuring a photodynamic enhancement effect achieved through the demand-oriented design of riboflavin sodium phosphate and Fe coordination complexes (RPFe) fillers with photodynamic and peroxidase activities, and the ingenious selection of slightly acidic chitosan (CS) film matrix. In this system, the photo-responsive properties of RPFe particles not only generate the •O, •OH, and O required for photodynamic sterilization, but also the produced HO serves as a necessary substrate for peroxidase to exert its bactericidal effect, endowing the packaging system with a "self-production and self-marketing" cascade process. The RPFe-CS film achieved efficient eradication to bacteria and fungi reaching up to 99.
View Article and Find Full Text PDFThe acidophilic and heat-resistant characteristics of Alicyclobacillus acidoterrestris (A. acidoterrestris) pose significant challenges to fruit juice production. Traditional thermal removal methods are often ineffective against this resilient bacterium.
View Article and Find Full Text PDFMost photosensitizers have limited responsiveness to visible light, however, visible light is a light source with a wide range of wavelengths and the most common in daily life, and making full use of visible light can help to enhance the photodynamic antimicrobial properties of photosensitizers. To tackle this issue, this study confirmed that alizarin has a good absorption capacity for visible light by UV-DRS analysis. Theoretical calculations showed that alizarin might be excited through the charge transfer (CT) mechanism.
View Article and Find Full Text PDFBackground: The aim of this study is to determine the impact of species and tissue differences on the glucuronidation of diclofenac in vitro.
Method: Microsomes from different species (rat, monkey, mouse, dog, and human) and rat and human tissues (liver, intestine, and kidney) were used to assess the rate of glucuronidation reaction of diclofenac. The metabolites were quantified using ultra high-performance liquid chromatography (UHPLC) and fitted into a Michaelis-Menten model to determine the metabolic kinetic parameters.
Superbugs in groundwater are posing severe health risks through waterborne pathways. An emerging approach for green disinfection lies at photocatalysis, which levers the locally generated superoxide radical (·O) for neutralization. However, the spin-forbidden feature of O hinders the photocatalytic generation of active ·O, and thus greatly limited the disinfection efficiency, especially for real groundwater with a low dissolved oxygen (DO) concentration.
View Article and Find Full Text PDFConsidering the increasing abundance of antibiotic-resistant bacteria, novel antimicrobial approaches need to be investigated. Photothermal therapy (PTT), an innovative noninvasive therapeutic technique, has demonstrated significant potential in addressing drug-resistant bacteria and bacterial biofilms. However, when used in isolation, PTT requires higher-temperature conditions to effectively eradicate bacteria, thereby potentially harming healthy tissues and inducing new inflammation.
View Article and Find Full Text PDFCerebrospinal fluid (CSF) flow is crucial for clearing metabolic waste from the brain, a process whose dysregulation is linked to neurodegenerative diseases like Alzheimer's. Traditional approaches like particle tracking velocimetry (PTV) are limited by their reliance on single-plane two-dimensional measurements, which fail to capture the complex dynamics of CSF flow fully. To overcome these limitations, we employ artificial intelligence velocimetry (AIV) to reconstruct three-dimensional velocities, infer pressure and wall shear stress and quantify flow rates.
View Article and Find Full Text PDFCoronavirus disease caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has caused secondary pandemic, which still poses a serious threat to physical health and economic development. Herein, the target-driven functionalized DNA hydrogel capillary sensor based on cascade signal amplification and carbon coated cobalt manganese modified by prussian blue and platinum nanoparticles (MnCo@C-Pt-PB NPs) has been successfully developed for dual-mode detection of SARS-CoV-2. The cascade signal amplification triggered by target RNA causes the permeability of the DNA hydrogel loaded in the capillary to be destroyed, thereby releasing the embedded MnCo@C-Pt-PB NPs as signal molecules into 3,3',5,5'-tetramethylbenzidine/hydrogen peroxide (TMB/HO) solution under the driving of capillarity.
View Article and Find Full Text PDFThe acidophilic and heat-resistant traits of Alicyclobacillus acidoterrestris (A. acidoterrestris) present a formidable challenge to fruit juices production safety. To address the limitations of conventional thermal sterilization, a novel bacterial capture device MPDEL has been developed.
View Article and Find Full Text PDFBackground: Peclinical and clinical studies have revealed that ezetimibe, an approved cholesterol-absorption inhibitor, is rapidly and extensively metabolized to a more potent metabolite, ezetimibe glucuronide. Since different species are commonly used in the pharmacokinetic and pharmacodynamic studies of ezetimibe, it is essential to determine the species difference in glucuronidation of ezetimibe in order to accurately evaluate ezetimibe's pharmacokinetics and pharmacodynamics. The purpose of the study was to compare species differences in ezetimibe glucuronidation rates using intestinal microsomes from humans, rats, mice, monkeys, and dogs.
View Article and Find Full Text PDFOne of the most promising approaches to effectively modulate the performance of immunochromatography (ICA) is the rational design of nanomaterials. It is anticipated to facilitate highly sensitive ICA analysis by introducing and controlling the internal defect structures of nanomaterials. Herein, we designed BiS@AuNPs with deep-level defect properties, revealing that these deep defects act as electron-hole nonradiative complex centers to promote phonon production, ultimately leading to photothermal analytical performance in ICA.
View Article and Find Full Text PDFCancer Cell Int
October 2024
Purpose: Heparan sulfate proteoglycans (HSPGs) are complex molecules found on the cell membrane and within the extracellular matrix, increasingly recognized for their role in tumor progression. This study aimed to investigate the involvement of Heparan sulfate proteoglycan 2 (HSPG2) in the progression of bladder cancer.
Methods: We identified HSPG2 as a promoter of bladder tumor progression using single-cell RNA sequencing and transcriptome analysis of sequencing data from seven patient samples obtained from the Gene Expression Omnibus (GEO) database (GSE135337).
BMC Pregnancy Childbirth
October 2024
Most COVID-19 patients have a positive prognosis, but patients with additional underlying diseases are more likely to have severe illness and increased fatality rates. Numerous studies indicate that cancer patients are more prone to contract SARS-CoV-2 and develop severe COVID-19 or even dying. In the recent transcriptome investigations, it is demonstrated that the fructose metabolism is altered in patients with SARS-CoV-2 infection.
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