Effect of Poly(N-vinyl-pyrrolidone)-block-poly(d,l-lactide) as Coating Agent on the Opsonization, Phagocytosis, and Pharmacokinetics of Biodegradable Nanoparticles

2009 ◽  
Vol 10 (2) ◽  
pp. 408-416 ◽  
Author(s):  
Geneviève Gaucher ◽  
Kinji Asahina ◽  
Jiaohong Wang ◽  
Jean-Christophe Leroux
Keyword(s):  
Vinyl Pyrrolidone ◽  
Coating Agent ◽  
Biodegradable Nanoparticles

Poly(N‐vinyl‐pyrrolidone)‐block‐poly(D,L‐lactide) as polymeric emulsifier for the preparation of biodegradable nanoparticles

2007 ◽  
Vol 96 (7) ◽  
pp. 1763-1775 ◽  
Author(s):  
Geneviève Gaucher ◽  
Monika Poreba ◽  
François Ravenelle ◽  
Jean‐Christophe Leroux
Keyword(s):  
Vinyl Pyrrolidone ◽  
Biodegradable Nanoparticles ◽  
Polymeric Emulsifier

scholarly journals Development and Application of Seed Coating Agent for the Control of Major Soil-Borne Diseases Infecting Wheat

Agronomy ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 413 ◽  
Author(s):  
Ren ◽  
Chen ◽  
Ye ◽  
Su ◽  
Xiao ◽  
...  
Keyword(s):  
Inhibitory Effect ◽  
Seed Coating ◽  
Practical Application ◽  
Active Constituent ◽  
Coating Agent ◽  
Grinding Method ◽  
Fungal Inhibition ◽  
Sharp Eyespot ◽  
Coating Agents ◽  
Seed Germination Test

In order to reduce the usage amount of pesticide fertilizers and protect the natural environment, seed coating agents are receiving increased wide concern. In this study, the active constituent (pesticide) and inactive components (surfactants and film former) of the seed coating agents were screened and optimized by the wet sand processing superfine grinding method. The fungal inhibition test of pesticides showed that thifluzamide, fludioxonil, pyraclostrobin, and difenoconazole have an obvious fungal inhibitory effect on wheat sharp eyespot, take-all, and root rot. LAE-9 and polyacrylamide + carboxymethyl cellulose (CMC) is recommended for the safe surfactant and film former, respectively, based on the seed germination test. Moreover, 6% difenoconazole · fludioxonil flowable concentrate for seed coating (FSC) stimulates the seedling growth of wheat, advances the growth of root, and improves biomass in the field trial, meanwhile, the control efficiency reached above 80%. Thus, we suggested it can be used as an effective seed coating agent for the control of soil-borne diseases in wheat. The seed coating agent has the characteristics of disease prevention, increasing crop yield, and safety of environment, which is of significance in practical application.

scholarly journals Mechanically Sustainable Starch-Based Flame-Retardant Coatings on Polyurethane Foams

Polymers ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1286
Author(s):  
Kyung-Who Choi ◽  
Jun-Woo Kim ◽  
Tae-Soon Kwon ◽  
Seok-Won Kang ◽  
Jung-Il Song ◽  
...  
Keyword(s):  
Heat Release ◽  
Flame Retardant ◽  
Coating Layer ◽  
Real Life ◽  
Polyurethane Foams ◽  
Layer By Layer ◽  
Toxic Substances ◽  
Cone Calorimetry ◽  
Coating Agent ◽  
Cone Calorimeter Test

The use of halogen-based materials has been regulated since toxic substances are released during combustion. In this study, polyurethane foam was coated with cationic starch (CS) and montmorillonite (MMT) nano-clay using a spray-assisted layer-by-layer (LbL) assembly to develop an eco-friendly, high-performance flame-retardant coating agent. The thickness of the CS/MMT coating layer was confirmed to have increased uniformly as the layers were stacked. Likewise, a cone calorimetry test confirmed that the heat release rate and total heat release of the coated foam decreased by about 1/2, and a flame test showed improved fire retardancy based on the analysis of combustion speed, flame size, and residues of the LbL-coated foam. More importantly, an additional cone calorimeter test was performed after conducting more than 1000 compressions to assess the durability of the flame-retardant coating layer when applied in real life, confirming the durability of the LbL coating by the lasting flame retardancy.

Antibacterial catechol-based hyaluronic acid, chitosan and poly (N-vinyl pyrrolidone) coatings onto Ti6Al4V surfaces for application as biomedical implant

2021 ◽  
Author(s):  
Jon Andrade del Olmo ◽  
Leyre Pérez-Álvarez ◽  
Miguel Ángel Pacha-Olivenza ◽  
Leire Ruiz-Rubio ◽  
Oihane Gartziandia ◽  
...  
Keyword(s):  
Hyaluronic Acid ◽  
Vinyl Pyrrolidone ◽  
Biomedical Implant

scholarly journals ALD coating of centrifugally spun polymeric fibers and postannealing: case study for nanotubular TiO2 photocatalyst

2021 ◽  
Author(s):  
Martina Rihova ◽  
Oksana Yurkevich ◽  
Martin Motola ◽  
Ludek Hromadko ◽  
Zdeněk Spotz ◽  
...  
Keyword(s):  
Atomic Layer Deposition ◽  
Atomic Layer ◽  
Vinyl Pyrrolidone ◽  
Tio2 Photocatalyst ◽  
Polymeric Fibers ◽  
Layer Deposition ◽  
Centrifugal Spinning ◽  
Poly Vinyl Pyrrolidone

This work describes the synthesis of highly photocatalytically active TiO2 tubes (TiTBs) by combining centrifugal spinning and atomic layer deposition (ALD). Poly(vinyl pyrrolidone) (PVP) fibers were first produced by centrifugal...

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