Abstract: A symmetrical, reversible burp cloth may have a multi-layered body portion, a shoulder drape section, a front drape section, and a back drape section. All sections may be connected to form a shoulder saddle. A sleeve seam may extend along an outer edge of the shoulder saddle. An upper arm drape section may be affixed to the sleeve seam and may extend outwardly and depend downwardly at least to a mid-bicep region of the user when the cloth is in use. A nursing cover may be attachable to and detachable from the burp cloth. In some embodiments, a burp cloth may double as a nursing cover.

Abstract: A composition comprising an immobilized biological membrane is provided. The functional immobilized biological membrane consists of a support structure, a metal layered onto a surface of the support structure, an alkanethiol monolayer assembled onto the metal, and a biological membrane deposited on the alkanethiol monolayer. Also provided is a method of producing the immobilized biological membrane, wherein the method involves contacting an alkanethiol with a metal surface of a support structure in forming an alkanethiol monolayer assembled onto the metal, and depositing a biological membrane onto the alkanethiol monolayer such that the biological membrane becomes associated with the alkanethiol monolayer. Uses of the biological membrane include as a sensing indicator in a biosensor, as an adsorbent in a chromatography system, and as a coating for medical devices.