A corrosion-resistant low-emissivity coating is provided. A digital rights management platform allows a content provider to forward digital contents that is automatically ingested and processed in accordance with various requirements associated with providing the digital contents to the client devices. Using such a device, parallel analysis of multiple samples can be performed simultaneously andor sequential analysis of a single sample can be performed simultaneously on a single chip or substrate. In certain embodiments, an average weighted price function is used to protect a client order that might be larger than the best bidoffer. The intensity of the visual noise is determined based on a threshold of the visual perception. A switch can be provided on the cannula adjacent the distal end.