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Multicolor, multi-quantum well light emitting diodes have been fabricated by molecular beam epitaxy by inserting quantum wells of various widths in the active region. The In content of the wells is 15%-20% and the color is governed by carrier confinement a ...
We present a detailed theoretical study of a vertical-cavity surface-emitting laser (VCSEL) with two optically coupled, active cavities. The study is based on a rate-equation model written for carriers and photons under steady-state conditions. The model a ...
We present a monolithically integrated vertical coupled cavity surface-emitting laser diode which exhibits stable laser emission at two design wavelengths simultaneously. The device consists of two slightly asymmetric coupled vertical cavities containing s ...
Allogeneic MHC-incompatible organ or cell grafts are usually promptly rejected by immunocompetent hosts. Here we tested allogeneic beta-islet cell graft acceptance by immune or naive C57BL/6 mice rendered diabetic with streptozotocin (STZ). Fully MHC-misma ...
A vertical-cavity surface-emitting laser with two monolithically grown cavities is presented, The three-terminal device allows current injection into the active regions of both cavities, Under various injection conditions, the device lases continuous wave ...
Gene transfer vectors derived from human immunodeficiency virus (HIV-1) efficiently transduce nondividing cells and remain stably integrated in their genome. Long-term expression of reporter genes has been documented after intracerebral injection of these ...
A highly-sensitive surface fluorescence technique was combined with a powerful method for the oriented reversible immobilization of membrane proteins on oxide surfaces. Affinity and kinetic parameters of the interaction of the receptor and a fluorescent li ...
A method for treating a human amyloid disease which includes administering a pharmaceutically effective amount of a composition including an amyloidogenic protein-stabilizing aryl compound ...
The study of intracellular communication requires devices that can not only monitor the bioelectric activity, but also control and observe the biochemical environment at the cellular level. This paper reports on the development and characterisation of impl ...
BACKGROUND: Encapsulating cells prevents the immune destruction of allogeneic cells in the subcutaneous site as well as allogeneic and xenogeneic cells in the central nervous system. However, when encapsulated xenogeneic cells are implanted s.c., they may ...