The results evidenced that the formulations compressed at 500 and 1,000 MPa exhibit a higher hardness than those prepared
at 100 MPa. The effect of the compression force on the drug release was analyzed and a statistically significant see more difference was observed (P < 0.05). Using lower compression forces leads to slightly better release profiles, i.e., profiles close to an ideal Higuchi kinetics for a total release of drug in a 12-h period, allowing to conclude that a compression force higher than 100 MPa is unnecessary.”
“A novel method for preparation of polymer-based magnetic microspheres was proposed by utilizing melt reactive blending, which was based on selective location of Fe3O4 nanoparticles in PA6 domain of polystyrene (PS)/polyamide 6 (PA6) immiscible blends. The results showed that most of Fe3O4 was located in the PA6 microspheres. Magnetization data revealed the magnetite content of PA6/Fe3O4 microsphere could be up to 54 wt % with strong magnetic responsibility and high saturation magnetization. Carboxyl functional
group, bonded with PA6/Fe3O4 microsphere by copolymerization of acrylic acid with PA6 chain in different concentration ethanoic acid (HAc) solution, was used as a ligand for protein adsorption. The amount of adsorbed bovine serum albumin (BSA) was optimized by changing the medium pH and the initial concentrations of BSA. The results denoted that the adsorption capacity of BSA AZD8186 PI3K/Akt/mTOR inhibitor reaches 215 mg/g microspheres, showing potentials to promising applications in bioseparation and biomedical Cell Cycle inhibitor fields. (C) 2011 Wiley Periodicals, Inc. J Appl Polym Sci 122:
2271-2277, 2011″
“Background: Patient-reported outcome measurement (PROM) plays an increasingly important role in palliative care. A variety of measures exists and is used in clinical care, audit and research. However, little is known about professionals’ views using these measures. The aim of this study is to describe the use and experiences of palliative care professionals with outcome measures.
Methods: A web-based online survey was conducted in Europe and Africa. Professionals working in clinical care, audit and research in palliative care were invited to the survey via national palliative care associations and various databases. Invitation e-mails were sent with a link to the questionnaire.
Results: Overall participation rate 42% (663/1592), overall completion rate 59% (392/663). The majority of respondents were female (63.4%), mean age 46 years (SD 9). 68.1% respondents from Europe and 73.3% from Africa had experiences with outcome measures in palliative care. Non-users reported time constraints, burden, lack of training and guidance as main reasons. In clinical care/audit, assessment of patients’ situation, monitoring changes and evaluation of services were main reasons for use.