Microfluidics mixing apparatus and methods of using same are disclosed for mixing fluids using increasing centrifugal force as the fluids being mixed traverse a mixing channel. At least one portion of the tube member is compressed with the press member while the pump is stopped. The combustion products include steam with trace levels of oxygen. Excess, residual implanted ions remain implanted in a top layer of the transfer layer of the 3DIC. These coupons are immediately redeemable by the consumer during the current shopping trip upon purchase of the corresponding items. The casing may be a pair of U-shaped shells, a single foil piece or even a tube-shaped structure which encases the internal electrochemical cell stack.