Monodisperse, uniform colloidal carbonaceous spheres were fabricated by the hydrothermal treatment of glucose with the help of a tiny amount of sodium polyacrylate (PAANa). This synthetic strategy is effective at high glucose concentration and for scale-up experiments. The sphere size can be easily tuned by the reaction time, temperature and glucose concentration.

Based on the laboratory study, the effects of sodium polyacrylate (SP) was investigated at 5 rates of 0, 0.08, 0.2, 0.5, and 1%, on water retention, saturated hydraulic conductivity(Ks), infiltration characteristic and water distribution profiles of a sandy soil. The results showed that water retention and available water capacity effectively increased with increasing SP rate. The Ks and the ra...

biodegradable nanoparticles for aerosol therapy based on the branched polyesters, DEAPA-PVAL-g-PLGA. Pharm Res 2003; 20: 2011–2020. 17 Grenha A, Seijo B, Remunan-Lopez C. Microencapsulated chitosan nanoparticles for lung protein delivery. Eur J Pharm Sci 2005; 25: 427–437. 18 Shi LJ, Plumley CJ, Berkland C. Biodegradable nanoparticle flocculates for dry powder aerosol formulation. Langmuir 2007...

Contamination of soils with cadmium (Cd) is a serious global issue due to its high mobility and toxicity. We investigated the application of insoluble polyacrylate polymers to improve soil and plant health. Sorghum was grown in a Cd-contaminated sandy soil. Polyacrylate polymers at 0.2% (w/w) were added to half of the soil. Control soil without plants was also included in the experiment. Growth...

A centrifugal technique wa.'l used to determine the swelling, Q (g swollen gel/g dry polymer), of crosslinked polyacrylate gel particles in water. Both centrifultal force aRd time of centrifugation affected the magnitude of Q but under constant centrifuge conditions it was found that Q-l 'I\'as proportional to 1'0 ' /:, 1'0 being the ionic strength. The viscoelastic properties of water dispersi...

PURPOSE We report the preliminary results of endoscopic treatment of vesicoureteral reflux in children using polyacrylate polyalcohol copolymer. MATERIAL AND METHODS We performed a prospective multicenter review of pediatric patients treated with subureteral injection of a new nonabsorbable substance. Only patients with 1 year of followup were included. RESULTS A total of 83 patients underw...

Two series of polyacrylate films with different H-bonding capable monoacrylate copolymers were synthesized by UV-initiated photo-polymerization.

We report a simple photolithographic approach for the creation and micropatterning of chemical functionality on polymer surfaces by use of surface-active block copolymers that contain protected photoactive functional groups. The block copolymers self-assemble at the substrate-air interface to generate a surface that is initially hydrophobic with low surface tension but that can be rendered hydr...

The phase separation between polydiacetylene and a polyacrylate is studied at the local scale with correlative spectroscopic microscopy techniques, revealing new properties of confined polydiacetylene.

This study investigated compressive strength, chloride penetration, and freeze-thaw resistance of multiwalled carbon nanotube (MWNT) concrete. More than 100 cylindrical specimens were used to assess test variables during sensitivity observations, including water-cement ratios (0.75, 0.5, and 0.4) and exposure to chemical agents (including gum arabic, propanol, ethanol, sodium polyacrylate, meth...