PURPOSE The purpose of this study was to explore concurrent validity of the age equivalent and standard scores of the Bayley Scales of Infant Development II (BSID II) Motor Scale and the Peabody Developmental Motor Scales-2 (PDMS-2), including correlations and clinical agreement between the scores of the two tests. METHODS One hundred ten children aged three to 41 months who were referred to ...

Water-to-polydimethylsiloxane (PDMS) and gas-to-PDMS sorption coefficients have been compiled for 170 gaseous and organic solutes. Both sets of sorption coefficients were analyzed using the Abraham solvation parameter model. Correlations were obtained for both "dry" headspace solid-phase microextraction and conventional "wet" PDMS coated surfaces. The derived equations correlated the experiment...

Polydimethylsiloxane (PDMS) is the elastomer of choice to create a variety of microfluidic devices by soft lithography techniques (e.g., [1], [2], [3], [4]). Accurate and reliable design, manufacture, and operation of microfluidic devices made from PDMS, require a detailed characterization of the deformation and failure behavior of the material. This paper discusses progress in a recently-initi...

Abstract Hydrophilic sponge composites were designed with a combination of polymers using silane agent (Polydimethylsiloxane (PDMS), Octhyltriethoxysilane (OTES)), Polyethylene glycol (PEG), Polyvinylalcohol (PVA) and activated natural bentonite (B). We describe simple method hydrophilic preparation characteristics. The was proceeded by washing in distilled water followed curing heated at 150°C...

Experimental investigations were conducted to determine the influence of polydimethylsiloxane (PDMS) microfluidic channels containing aligned circular obstacles (with diameters of 172 µm and 132 µm) on the flow velocity and pressure drop under steady-state flow conditions. A significant PDMS bulging was observed when the fluid flow initially contacted the obstacles, but this phenomenon decrease...

In this work, the low cost synthesis of polydimethylsiloxane (PDMS) rods is described, and the performances of this new passive sampling device (in laboratory and in situ) are compared to the passive stir bar sorptive extraction (SBSE) for the monitoring of pesticides from different classes (herbicides, insecticides and fungicides) in surface waters. The influence of synthesis parameters of PDM...

The compatibility of polydimethylsiloxane (PDMS) channels with certain solvents is a well known problem of soft lithography techniques, in particular when it leads to the swelling of the PDMS blocks. However, little is known about the modification of microchannel geometries when they are subjected to swelling solvents. Here, we experimentally measure the deformations of the roof of PDMS microch...

SiO2@PDMS and CeO2-ZrO2-SiO2@PDMS nanocomposites were prepared and studied using nitrogen adsorption-desorption, Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), measurements of advancing and receding contact angles with water, and microcalorimetry. The pore size distributions indicate that the textural characteristics change after oxide modification by poly(...

Poly(dimethylsiloxane) (PDMS) is known as one of the most established polymers for making elastomers. Therefore, it commonly used fabrication biomedical devices. Many PDMS surface modification processes have been proposed recently to increase reliability in medical fields. However, modified surface's long-term stability still limited. Hydrophobic recovery widely recognized a factor that reduces...