6.1 Overview In Chapter 5 a new universal cloning strategy for the production of specifically designed surface-active PAA’s was introduced. Here, we apply this strategy to the production of a unique surface-active PAA designed to form brush layers on aluminum oxide surfaces. This chapter discusses the procedure taken in assembling the gene encoding for a PAA diblock consisting of a long zwitter...

The mechanical properties of poly(acrylic acid) (PAA) were investigated on the molecular scale by using AFM. PAA was adsorbed onto a glass substrate and then picked up at one point of the chain with the AFM tip and stretched. The deformation of single PAA chains under tension was measured and modeled by a modified freely-joint-chain model. The length distribution of loops and tails of adsorbed ...

Introduction The aim of this study was to investigate the rate and determinants of popliteal artery aneurysm (PAA) growth in a cohort of patients with multianeurysmal disease. Methods Following a retrospective review of all patients who underwent PAA repair at a tertiary centre between 2006-2012, 22 popliteal arteries in 18 patients were identified for PAA growth study. In total, 154 duplex ult...

The preparation and potentiometric pH response properties of membranes formulated with various aminated-poly(vinyl chloride) (PVC-NH2) products are described. Products containing secondary and/or primary amino functional groups are obtained by modifying PVC with monoand/or diamines, respectively. Blank membranes prepared with either type of aminated-polymer exhibit nearly Nernstian potentiometr...

Fields of thin-film porous anodic alumina !PAA" are fabricated within a SiO2 support and on independently addressable underlying metal pads. The underlying metallization provides a means for unique postprocessing to be performed on the PAA fields. Customized postprocessing is demonstrated with the synthesis of single-walled carbon nanotubes !SWCNTs" from an embedded catalyst in the PAA, followe...

Polyaspartic Acid (PAA) protects the kidney from experimental gentamicin nephrotoxicity despite large increases in renal cortical gentamicin content. In these experiments, prominent cytoplasmic vacuoles were noted in all animals that received PAA with or without gentamicin. The present study showed that there were no renal structural or functional consequences of PAA given alone or with gentami...

During embryonic life, the initially paired pharyngeal arch arteries (PAAs) follow a precisely orchestrated program of persistence and regression that leads to the formation of the mature aortic arch and great vessels. When this program fails, specific cardiovascular defects arise that may be life threatening or mild, according to the identity of the affected artery. Fourth PAA-derived cardiova...

In this research thin film heterogeneous cation exchange membrane was prepared by interfacial polymerization of polyacrylic acid-co-iron nickel oxide nanoparticle son PVC based substrate. Spectra analysis confirmed graft polymerization conclusively. The SEM images showed that polymerized layer covers the membranes by simple gel network entanglement. Results exhibited that membrane water content...