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Assessing the marginal seal of bioactive restorative materials in class II cavities with a bacterial penetration model.
Dent Mater
March 2025
Department of Conservative Dentistry and Periodontology, LMU University Hospital, LMU Munich, Goethestrasse 70, Munich 80336, Germany.
Objectives: The aim of this study was to examine the marginal seal of novel bioactive restorative materials and the material-related properties associated with bacterial microleakage.
Methods: Class II cavities prepared into human extracted teeth were restored with: Venus Diamond (VD) + selective enamel etching (SEE)/self-etching universal adhesive (SEA), ACTIVA BioACTIVE RESTORATIVE (AB) + SEE/SEA, Cention Forte (CF) + Cention Primer, Ketac Universal Aplicap (KU), EQUIA Forte HT (EF) and Surefil One (SO) and exposed to a cariogenic multi-species bacterial suspension for 7 days. Bacterial microleakage was visualized with a modified gram staining protocol and bacterial penetration depths were microscopically determined after sectioning the teeth.
Paper-immobilized liquid-phase microextraction for direct paper spray mass spectrometry and immuno-detection of atropine in baby food, buckwheat cereals, and edible oils at regulatory levels.
Anal Chim Acta
May 2025
Laboratory of Organic Chemistry, Wageningen University & Research, Stippeneng 4, Wageningen, 6708 WE, the Netherlands; Wageningen Food Safety Research, Wageningen University & Research, Akkermaalsbos 2, Wageningen, 6708 WB, the Netherlands. Electronic address:
Background: Atropine is a strictly regulated natural toxin. Monitoring for atropine is thus important, but often expensive and time-consuming. Moreover, the range of relevant matrices, and corresponding differences in required detection limits for atropine vary.
View Article and Find Full Text PDFAn expanded framework for Swab Touch Spray-Mass Spectrometry towards the detection of allergenic protein residues on food preparation surfaces.
Anal Chim Acta
May 2025
Department of Chemical Engineering and Analytical Chemistry, University of Barcelona, Av. Diagonal 645, Barcelona, E-08028, Spain.
Background: Ambient Mass Spectrometry (AMS) encompasses a group of techniques that have emerged as powerful strategies for direct, in-situ and high-throughput analysis, also in compliance with the principles of green analytical chemistry. Swab Touch Spray-Mass Spectrometry (Swab TS-MS) is a home-made AMS technique that involves the use of a medical swab as sampling tool and electrospray probe. To date, Swab TS-MS has been applied only for the analysis of small molecules, especially in forensic and medical fields, leaving the analysis of peptides and proteins still unexplored.
View Article and Find Full Text PDFSolid waste based manufactured soil - Stabilization of "organics-microorganisms-inorganic skeleton" and performance evaluation.
Waste Manag
March 2025
School of Environmental Studies, China University of Geosciences, Wuhan 430074, Hubei, China; Hubei Key Laboratory of Yangtze Catchment Environmental Aquatic Science, School of Environmental Studies, China University of Geosciences, Wuhan 430074, Hubei, China; National Engineering Research Center of Industrial Wastewater Detoxication and Resource Recovery, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China. Electronic address:
The safe disposal and utilization of bulk solid waste (SW) are critical challenges. Manufactured soil, a soil-like material composed of SW, offers a novel solution for resource recycling. However, the mechanisms underlying SW-based manufactured soil fertility development remain unclear.
View Article and Find Full Text PDFBifunctional tubular step-scheme CoS/CdS heterostructure for highly efficient photoelectrochemical detection coupled with the degradation of tetracycline.
Food Chem
March 2025
Huzhou Key Laboratory of Environmental Functional Materials and Pollution Control, School of Engineering, Huzhou University, Huzhou, Zhejiang 313000, PR China. Electronic address:
A bifunctional tubular step-scheme CoS/CdS heterostructure was successfully synthesized for efficient photoelectrochemical (PEC) detection coupled with the degradation of tetracycline (TC). It was found that so-obtained heterostructure could effectively suppress the recombination of photo-generated carriers and display larger PEC responses owing to the internal electrostatic field. Upon adding TC, the photocurrent signal of CoS/CdS heterostructure was specifically activated due to the direct consumption of holes in CdS component by TC, resulting in significantly enhanced charge separation.
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