Large parasites

Killing of intracellular bacteria and large parasites in the extracellular fluid... 

KILLING OF INTRACELLULAR BACTERIA AND LARGE PARASITES IN THE EXTRACELLULAR FLUID... 

The significance of large parasites as pathogens in humans is indicated by the evolution of two new cells and one new antibody. These are the eosinophil, the mast cell and IgE (Appendices 17.1 and 17.2). It is the collaboration between these cells and the IgE antibodies that enables the body to kill these parasites. 

Equation (14) confirms the earlier observations that to maximize resolution, parasitic capacitance must be kept small. In fact, to first order the resolution is proportional to 2CS + Cp. Apparently, thermal noise considerations impose no penalty on a fully integrated sensor with small sense and parasitic capacitance, since resolution improves by the same factor. Only the combination of small sense capacitance and large parasitic (e.g., due to connection to off-chip electronics) suffers from reduced sensitivity. 

Making good electrical contact to organic semiconductors is sometimes difficult. As a result there are often large parasitic resistances in series with the source and drain... 

Recently, Cree Research Inc. reported on the first p-channel 6H-SiC MOSFET [6]. The device structure and output characteristics are shown in FIGURES 8 and 9, respectively. The device current and transconductance are very small (76 pA mm 1 at 40 V of drain bias and 16 pS mm 1, respectively, for a 7 pm gate length device). The performance of this device was limited by a large parasitic series resistance. Nevertheless, even these preliminary results show the feasibility of SiC CMOS technology, capable of operating at elevated temperatures. 

---