Provided are an organic-inorganic hybrid scaffold with surface-immobilized nano-hydroxyapatite, and a method for the fabrication thereof. The system uses shared memory between an unmanaged component and a managed application to store information relating to ink information. The multi-layered components can be removably secured to the fabric sheet by decouplable fasteners or by friction or interaction with a friction enhancing material, non-removably secured to the fabric sheet by sewing, quilting, tufting, gluing, andor applying an adhesive or bonding agent, or secured to the fabric sheet by extensions inserted into a crevice. The host user retains control of the application at all times. Provision is made for accommodating legacy nodes that may have constraints in symbol rate or the number of carriers they can support. The single opamp design can operate in a first phase to sense and store a DC offset, while providing an output to drive an output stage of the current sense circuit.