A thin fluid layers or streams-based separation device for separating atoms, ions, isotopes, molecules, or fine particles, comprising:
- at least one support having a surface, the at least one support including at least one inclined surface, at least one rotatable cylinder, or a channel or tube or collection of channels or tubes or other fluid pathways;
- a fluid source that is configured to hold a fluid that includes one or more entities to be separated therein, the fluid source configured to apply a fluid to the surface of the at least one support, wherein the separator is configured to form one or more thin fluid layers or streams, channels, tubes or other fluid pathways on the surface after receiving the fluid from the fluid source;
- at least one force application device configured to apply a desired force to a portion of the supported thin fluid layers or streams, tubes, channels or other fluid pathways, the force including at least one of a centrifugal force, a magnetic force, an electric or electrostatic force, an electrolytic force, a concentration gradient, a hydrophobic force or a hydrophilic force;
- and
- one or more collection devices, channels, tubes, or layers positioned to receive fluid enriched or depleted in atoms, ions, isotopes, molecules, or fine particles of the entities to be separated, leaving a region in which the desired force is applied.