We present a method to measure the in-plane thermal conductivity of thin films by the laser flash technique. The method uses a well-defined structure for the analysis. We have realized the structure by conformal deposition of ZnO films of different thicknesses using atomic layer deposition onto a 20 μm thick ion track etched polycarbonate membrane as substrate. By using this procedure we could ...

Traditional Transwell inserts with track-etched 10 ?m thick polymer membranes have been intensively used for studying cellular barriers. However, their thickness hampers direct cell-cell interaction between the adjacent cells which has shown to critically influence barrier formation. Therefore, here effect of reduced distance by using fivefold thinner (2 ?m) optically transparent polydimethylsi...

Effects of low pressure radio frequency (rf) plasma treatment on the surface properties of polycarbonate are presented in this paper. Results obtained from the surface energy measurement after different conditions of treatment are compared. After treatment the surface free energy increased from the original value of 35 mJ/m2 to 63-74 mJ/m2. X-ray photoelectron spectroscopy measurements showed a...

Facile and efficient early detection of cancer is a major challenge in healthcare. Herein we developed novel sensor made from polycarbonate (PC) membrane with nanopores, followed by sequence-specific Oligo RNA modification for gastric carcinoma diagnosis. In this design, the antigen CA72-4 specifically conjugated to RNA, thereby inhibiting electrical current through PC concentration-dependent m...

Planktonic bacteria from an estuary were concentrated on membrane filters and counted with both a scanning electron microscope and an epi-illuminated fluorescent microscope. Counts on 0.2 micron Nuclepore filters (polycarbonate) were significantly higher (P less than 0.001) than counts on 0.2-micron Sartorius filters (cellulose). In contrast, there was not a statistically significant difference...

The current study aimed to understand both external and internal membrane fouling by three proteins with different net charges, namely, negatively charged pepsin bovine serum albumin (BSA), as well positively lysozyme. Polycarbonate track-etched (PCTE) membranes were used. Per electrostatic attraction, the flux decline was worst for lysozyme, which is attributed model greatest pore blockage (?)...

On behalf of the Polycarbonate/BPA Global Group of the American Chemistry Council (ACC), I am submitting these comments in response to OEHHA’s Notice of Proposed Rulemaking regarding the proposed Maximum Allowable Dose Level (MADL) for bisphenol A (BPA). The Polycarbonate/BPA Global Group consists of the leading global manufacturers of BPA and polycarbonate plastic, which for many years have su...

Porous nanotubes comprised of MnO2 nanosheets were fabricated with a one-pot hydrothermal method using polycarbonate membrane as the template. The diameter and thickness of nanotubes can be controlled by choice of the membrane pore size and the chemistry. The porous MnO2 nanotubes were used as a supercapacitor electrode. The specific capacitance in a three-electrode system was 365 F g(-1) at a ...

UNLABELLED The human opportunistic pathogen, Acinetobacter baumannii, has the propensity to form biofilms and frequently cause medical device-related infections in hospitals. However, the physio-chemical properties of medical surfaces, in addition to bacterial surface properties, will affect colonization and biofilm development. The objective of this study was to compare the ability of A. bauma...