Abstract: This invention provides improved polyamides comprising a positive patch for contacting the phosphate backbone or major groove of a DNA molecule. As such, the improved polyamides are capable of inhibiting the function or binding of a DNA-binding protein to a DNA molecule. The improved polyamide provides for more efficient function of the polyamide.
Abstract: A dewpoint/frostpoint hygrometer that uses a surface moisture-sensitive sensor as part of an RF oscillator circuit with feedback control of the sensor temperature to maintain equilibrium at the sensor surface between ambient water vapor and condensed water/ice. The invention is preferably implemented using a surface acoustic wave (SAW) device in an RF oscillator circuit configured to generate a condensation-dependent output signal, a temperature sensor to measure the temperature of the SAW device and to distinguish between condensation-dependent and temperature-dependent signals, a temperature regulating device to control the temperature of the SAW device, and a feedback control system configured to keep the condensation-dependent signal nearly constant over time in the presence of time-varying humidity, corrected for temperature.