Adjusting the polymer properties to improve drug solubility (or miscibility) in the polymer coating was found beneficial to the release profile.”
“Radiation grafting of acrylic acid onto poly (ethylene terephthalate)
(PET) knittings was investigated by preirradiation technique. The influence of the grafting selleck inhibitor conditions, Such as reaction time, ferrous sulfate concentration, preirradiation dose, organic additives, monomer concentration, and reaction temperature on the degree of grafting was investigated. Precise control over the degree of grafting was achieved by proper selection of the reaction conditions. The organic solvents such as methanol, acetone, isopropanol, THF, and MEK when used as sole medium do not allow the grafting to proceed, probably due to the inhibitory action. However, reasonable grafting proceeded when a mixture of water and organic solvent
was used. Attenuated total reflectance-FTIR spectroscopy analysis of the grafted knittings confirmed the existence of carboxylic acid groups in the knittings. The surface morphology, as studied by scanning BYL719 order electron microscopy (SEM), was significantly influenced by the addition of organic solvents in the reaction medium. (C) 2009 Wiley Periodicals, Inc. J Appl Polym Sci 112: 1199-1208, 2009″
“Objectives: To determine whether the proposed seven-factor structure of the Illness Perception QuestionnaireRevised (Timeline
Acute/Chronic, Timeline Cyclical, Consequences, Personal Control, Treatment Control, Illness Coherence and Emotional Representations) is appropriate among a population of oesophageal cancer survivors. Methods: Everyone registered with the Oesophageal Patients’ Association in the UK (n52185) was mailed a questionnaire booklet, which included the Illness Perception AZD2171 purchase Questionnaire- Revised. Responses from 587 oesophageal cancer survivors (27%) were subjected to a confirmatory factor analysis. Results: The proposed seven- factor structure provided a reasonable fit of the data. Modification indices suggested that a significantly better fit could be provided if one of the items on the Timeline Acute/ Chronic factor loaded on the Treatment Control factor and an error covariance was added between two other items on the Timeline Acute/ Chronic factor. Conclusions: The model fit for the seven- factor structure proposed by Moss- Morris et al. (Psychol Health 2002; 17: 1- 16) was found to be adequate in our study. However, the structure of the timeline acute/ chronic factor needs to be considered, particularly when the IPQ- R is to be used among older people with a potentially life- threatening illness or those receiving palliative care. Copyright (C) 2011 John Wiley & Sons, Ltd.