A device having a flow channel, wherein at least one flow-terminating interface is used to control the flow of liquid in the flow channel. The flow-terminating interface prevents the flow of the liquid beyond the interface. In one aspect, the invention provides a sensor, such as, for example, a biosensor,...http://www.google.com.au/patents/US6939450?utm_source=gb-gplus-sharePatent US6939450 - Device having a flow channel
