An interfacial polymerisation approach is adopted to encapsulate palladium(II) acetate and palladium nanoparticles in polyurea microcapsules for use in catalysis.
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Polymer Capsules with Volatile Organic Compounds as Reference Materials for Controlled Emission.
ACS Appl Mater Interfaces
December 2024
Bundesanstalt für Materialforschung und -prüfung (BAM), Unter den Eichen 87, 12205 Berlin, Germany.
Encapsulation of volatile organic compounds (VOCs) that could evaporate at a defined rate is of immense interest for application in emission reference materials (ERMs). Polyurethane/polyurea microcapsules with various VOC active ingredients (limonene, pinene, and toluene) were successfully produced by interfacial polymerization with Shirasu porous glass membrane emulsification in a size range between 10 and 50 μm. The effect of surfactant, VOC, monomer(s) type, and ratio has a great effect on the formulation process and morphology of capsules.
View Article and Find Full Text PDFMagnetically Separable Chiral Poly(ionic liquid) Microcapsules Prepared Using Oil-in-Oil Emulsions.
Polymers (Basel)
September 2024
Casali Center of Applied Chemistry, Institute of Chemistry, Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 9190401, Israel.
This article presents a method for producing chiral ionic liquid-based polyurea microcapsules that can be magnetically separated. The method involves entrapping hydrophilic magnetic nanoparticles within chiral polyurea microspheres. The synthetic process for creating these magnetic polyurea particles involves oil-in-oil (o/o) nano-emulsification of an ionic liquid-modified magnetite nanoparticle (MNPs-IL) and an ionic liquid-based diamine monomer, which comprises a chiral bis(mandelato)borate anion, in a nonpolar organic solvent, toluene, and contains a suitable surfactant.
View Article and Find Full Text PDFLignin-polyurea/luffa seed oil microcapsules for anti-mold modification of bamboo.
Int J Biol Macromol
November 2024
Anhui Healthy Sleep Home Furnishing Engineering Research Center, College of Materials and Chemistry, Anhui Agricultural University, Hefei 230036, China. Electronic address:
Article Synopsis
- - Bamboo is a promising alternative to wood in various industries but is vulnerable to microbial damage, which weakens its structural integrity.
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Stereoselective Interactions of Chiral Polyurea Nanocapsules with Albumins.
ACS Appl Mater Interfaces
October 2024
The Institute for Drug Research, the School of Pharmacy, the Faculty of Medicine, The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 9112192, Israel.
Exploiting the chirality of nanometric structures to modulate biological systems is an emerging and compelling area of research. In this study, we reveal that chiral polyurea nanocapsules exhibit significant stereoselective interactions with albumins from various sources despite their nearly neutral surface potential. Moreover, these interactions can be modulated by altering the nanocapsule surface composition, offering new opportunities to impact their distribution and, if used as a drug delivery system, the pharmacokinetics of the drug.
View Article and Find Full Text PDFSimulation and application assessment of the efficacy of fosthiazate-loaded microcapsules against root-knot nematode.
Pest Manag Sci
October 2024
Graduate School of Science and Technology, Niigata University, Niigata City, Japan.
Background: Although microencapsulation technology is an effective pesticide formulation method, the correlation between the release properties of microcapsules and pesticide concentrations in soil and their efficacy has not been thoroughly investigated. Here, the effects of the release properties of the nematicide Fosthiazate (FTZ) from microcapsules on their efficacy against the nematode Meloidogyne incognita were examined using experimental and mathematical approaches.
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