A5053068119- Surface Modification and Superhydrophobicity
- Plasma Applications and Diagnostics
- Wood Treatment and Properties
- Building materials and conservation
- Lignin and Wood Chemistry
- Plant Surface Properties and Treatments
- Additive Manufacturing and 3D Printing Technologies
- Analytical chemistry methods development
- Electrohydrodynamics and Fluid Dynamics
- Insect and Pesticide Research
- Cultural Heritage Materials Analysis
- Microbial Inactivation Methods
- Advanced Cellulose Research Studies
- Laser-induced spectroscopy and plasma
- Listeria monocytogenes in Food Safety
- Natural Fiber Reinforced Composites
- Advanced Sensor and Energy Harvesting Materials
- Study of Mite Species
- Forensic Fingerprint Detection Methods
- 3D Surveying and Cultural Heritage
- Melamine detection and toxicity
- Food Drying and Modeling
- Dermatological diseases and infestations
- Mycotoxins in Agriculture and Food
- Bird parasitology and diseases
University of Applied Sciences and Arts Hildesheim/Holzminden/Göttingen
2022
HAW Hamburg
2008-2020
Fraunhofer Institute for Surface Engineering and Thin Films
2014-2016
University of Göttingen
2014
The efficacy of cold atmospheric pressure plasma (CAPP) with ambient air as working gas for the degradation selected mycotoxins was studied. Deoxynivalenol, zearalenone, enniatins, fumonisin B1, and T2 toxin produced by Fusarium spp., sterigmatocystin Aspergillus spp. AAL Alternaria alternata were used. kinetics decay exposed to discharge monitored. All pure CAPP degraded almost completely within 60 s. Degradation rates varied mycotoxin structure: B1 structurally related most rapidly while...
Abstract Plasma treatment at atmospheric pressure using a dielectric barrier discharge was carried out to increase the surface hydrophilicity of wood and wood-based materials. Surface energy determination by contact angle measurement revealed an in polar component total following plasma treatment. X-ray photoelectron spectroscopy generation groups consequently O/C ratio. The feasibility polymerization on wooden substrates create water-repellent characteristics also investigated. An...
Abstract In this study, the adhesion properties of adhesives and paints on wood–plastic composites (WPCs) after plasma treatment at atmospheric pressure ambient air were investigated. Surface energy determination by means contact angle measurements according to Owens–Wendt approach atomic force microscopy detect changes in surface topography carried out. An increase polar component an roughness detected, indicating enhanced bond strength. To confirm these results, strength tests conducted....
With an increased interest in finding alternatives for tropical timbers and preservative-treated wood, several new wood treatments have recently been commercialised, e.g., acetylation, furfurylation heat treatment. For the latter, diverse techniques protected by trademarks developed, such as Plato process, retification oil-heat treatment, thermo Stellac whereby chemical physical properties of treated are altered (Boonstra et al. 2006a,b). Beneficial changes improved dimensional stability...
ABSTRACT Three different discharge types, based on the principle of a dielectric barrier at atmospheric pressure, were investigated with regard to their influence adhesion properties series wood–polymer composites. Wood flour ( Picea abies L .) filled polypropylene and various proportions polyethylene manufactured either through extrusion or injection molding. The composites’ surfaces activated by coplanar surface discharge, remote plasma, direct discharge. changes in wettability due...
Abstract Facile and low‐cost methods for the fabrication of superhydrophobic superoleophilic materials to effectively separate oil/water mixtures are great interest significance. Especially, those with robust surfaces separation under harsh conditions including corrosive solutions hot water still very challenging. In this paper, Cu(OH) 2 nanoneedles CuO nanoplates controllably generated on copper meshes by simply changing oxidization time. After hydrophobic coating polydimethylsiloxane,...
In this study, the influence of a dielectric barrier discharge (DBD) at atmospheric pressure on wood plastic composites (WPC), particle board and fibre boards is investigated by means contact angle measurements. The water (WCA) determined offers possibility to detect changes surface properties plasma treatment. energy divided into disperse polar part before after To estimate adhesion, work adhesion between substrates four different cured coatings evaluated. It shown that energy, primarily...
Foodborne diseases are mainly caused by the contamination of meat or products with pathogenic microorganisms. In this study, we first investigated in vitro application TRIS-buffered plasma-activated water (Tb-PAW) on Campylobacter (C.) jejuni and Escherichia (E.) coli, a reduction approx. 4.20 ± 0.68 5.12 0.46 log10 CFU/mL. Furthermore, chicken duck thighs (inoculated C. E. coli) breasts (with natural microflora) skin were sprayed Tb-PAW. Samples packed under modified atmosphere stored at 4...
During machine milking, pathogenic microorganisms can be transmitted from cow to through liners. Therefore, in Germany, a spray method for the intermediate disinfection of milking cluster is often used prevention. This easy perform, requires little time and no extra materials, solution safe outside contamination bottle. Since data on systematic efficacy trial are available, aim this study was determine microbial reduction effect disinfection. laboratory field trials were conducted. In both...
Abstract Spruce wood surfaces were treated with plasma the aim of increacing either hydrophilicity or hydrophobicity. The treatments resulted in significant changes wettability compared to aged and reference samples. Wettability was found be a very good indicator macroscopic bond strength. Nanoindentation adhesion measurements identified at immediate surface as primary source performance, whereas mechanical performance bulk cells not affected.
When exposing food and feedstuff to cold atmospheric pressure plasmas (CAPP), e.g., for decontamination purposes, possible unwanted effects on the contained nutrients might occur. In present study, we thus concentrated CAPP-induced degrading different sugars, namely glucose sucrose. The treatments were performed using admixtures of argon synthetic air over durations up 12min. Continuous degradation sucrose was determined ATR-FTIR XPS analyses. OH stretching bands showed notable broadening in...
Dermanyssus gallinae, the poultry red mite (PRM), is a hematophagous temporary ectoparasite that causes serious economic losses and animal health impairment on laying hen farms worldwide. Control limited by parasite's hidden lifestyle, restrictions use of chemical acaricides development resistance against certain drug classes. As result, research was conducted to explore alternative control methods. In recent years, atmospheric pressure plasma has been increasingly reported as an for pest...