The influence of copolymer composition on Poly(Lactide-co-Glycolide)/nanohydroxyapatite (PLGA/nHA) composite scaffolds is studied in the context of bone tissue engineering and regenerative medicine. The composite scaffolds are fabricated by thermally-induced phase separation and the effect of bioactive nanoparticles on their in vitro degradation in phosphate-buffered solution at 37 °C is analyz...

Tissue engineering scaffolds play a vital role in regenerative medicine. It not only provides a temporary 3-dimensional support during tissue repair, but also regulates the cell behavior, such as cell adhesion, proliferation and differentiation. In this review, we summarize the development and trends of functional scaffolding biomaterials including electrically conducting hydrogels and nano-com...

The thermally induced warpage of electronic substrates is a significant concern in manufacturing processes. The ability to evaluate substrate behavior with respect to temperature is particularly important to manufacturing engineers. Previous measurement of thermally induced warpage on Printed Circuit Boards (PCBs) using general Shadow Moiré cannot provide enough sensitivity for modern electroni...

Electron holography is applied for the study of the leakage field of thin-film ferromagnetic tips used as probes in magnetic force microscopy. We used commercially available pyramidal tips covered on one face with a thin NiCo film, which were then placed in a high external magnetic field directed along the pyramid axis. Good agreement between simulated and experimental electron phase difference...

The influence of solvent on the temperature sensitivity of the electrode potential of thermally-chargeable supercapacitors (TCSs) is investigated. For large electrodes, the output voltage is positively correlated with the dielectric constant of solvent. When nanoporous carbon electrodes are used, different characteristics of system performance are observed, suggesting that possible size effects...

Thermally induced birefringence in laser crystals limits the power and beam quality of high-power solid-state lasers and amplifiers. It is known, that 100-cut Nd:YAG crystals have less thermally induced depolarization that 111-cut ones [1]. Using a scheme with two rods, imaging telescope and a 90° rotator [2] allows to compensate for the depolarization. In contrast to 111-cut rod, pump heating ...

Jiro Kumaki,1 Takeji Hashimoto,1,2 and Steve Granick3 1Hashimoto Polymer Phasing Project, ERATO, JRDC, Keihanna Plaza, Seika, Kyoto 619-02, Japan 2Division of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 606-01, Japan 3Department of Materials Science and Engineering, University of Illinois, Urbana, Illinois 61801 (Received 27 February 1996) Phase separation occurre...

We present a study of a phase-separation process induced by the presence of spatially correlated multiplicative noise. We develop a mean-field approach suitable for conserved-order-parameter systems and use it to obtain the phase diagram of the model. Mean-field results are compared with numerical simulations of the complete model in two dimensions. Additionally, a comparison between the noise-...

Phase separation in lipid bilayers that include negatively charged lipids is examined experimentally. We observed phase-separated structures and determined the membrane miscibility temperatures in several binary and ternary lipid mixtures of unsaturated neutral lipid, dioleoylphosphatidylcholine (DOPC), saturated neutral lipid, dipalmitoylphosphatidylcholine (DPPC), unsaturated charged lipid, d...