A display-enabled electronic system. The sensor includes an injection molded body, at least two electrodes, an enzyme, and, if desired, an electron transfer mediator. Texture enhancements may be done to the image as desired, but are not necessary. Moreover, this invention also relates to methods of treating a patient suffering from hypertension and wound-healing abnormalities with the compounds identified using the transgenic animals, and methods of making the transgenic animals. The light guide can be used with reflectors that have originally been manufactured for use with high intensity discharge lamps or halogen lamps but because of the light guide, the reflectors can be used together with light sources in the form of at least one light emitting diode. The dielectric layer has at least two different regions that show different etch rates when they are etched with the etchant.