The effects of CH&I, reactive ion etching (RIE) on the optical properties of an InP/InGaAs multiple-quantum-well structure have been investigated by low-temperature photoluminescence (PL). The structure consisted of eight InGaAs quantum wells, lattice matched to InP, with nominal thicknesses of 0.5, 1,2,3,5, 10,20, and 70 monolayers, respectively, on top of a 200~nm-thick layer of InGaAs for ca...

BACKGROUND AND OBJECTIVES The mission of the medicine and pharmacy programs at the University of Minnesota, Duluth campus is to prepare students for practice in rural communities. To support and encourage medical and pharmacy students to choose to practice in rural Minnesota, an interprofessional experience was developed to expose medical and pharmacy students to a variety of aspects of rural h...

Dust particle transport in low-temperature plasmas has recently received considerable attention due to the desire to minimize contamination of wafers during plasma processing of microelectronics devices. Laser light scattering observations of dust particles near wafers in reactive-ion-etching ~RIE! radio frequency ~rf! discharges have revealed clouds which display collective behavior. These obs...

Proliferation of the rat intestinal epithelial cell-line, RIE-1, has previously been shown to be stimulated by certain polypeptide growth factors acting via receptors that possess intrinsic tyrosine kinase activity. In this study, we show that the octapeptide hormone angiotensin II (AII), apparently acting through the AT1 G-protein-coupled receptor, is also a mitogen for RIE-1 cells. Maximal st...

Reliable and sensitive imaging tools are required to track macrophage migration and provide a better understating of their biological roles in various diseases. Here, we demonstrate the possibility of radioactive iodide-embedded gold nanoparticles (RIe-AuNPs) as a cell tracker for nuclear medicine imaging. To demonstrate this utility, we monitored macrophage migration to carrageenan-induced sit...

In this experimental work, heat transfer and thermal performance factor of double-pipe exchanger pipes with rotated inclined elliptical (RIE) inserts are examined. The rotation angle the turbulators (?), slant (?), perforation diameters (dp) were in range 0????90?, 15????25?, 0.5mm?dp?1.5mm, respectively. perforations can substantially intensify flow unsteadiness disturb boundary layer to impro...

This paper presents processes for glass micromachining, including sandblast, wet etching, reactive ion etching (RIE), and glass reflow techniques. The advantages as well as disadvantages of each method are presented and discussed in light of the experiments. Sandblast and wet etching techniques are simple processes but face difficulties in small and high-aspect-ratio structures. A sandblasted 2...

The main objective of this research is to develop a micro and nanogap structure using dry anisotropic etching –Reactive Ion EtchingRIE. Amorphous silicon material is used in the micro and nanogap structure and gold as electrode. The fabrication processes of the micro and nanostructure are based on conventional photolithography, wet etching for the Al pattern and wet etching for a-Si pattern usi...