Abstract:
Conventional dosage methods such as capsules, gels etc. which are used traditionally have
severe side effects including rising of blood sugar level by dissolution of drug in blood
which can be overcome by replacing traditional drug delivery with specifically targeted
and regulated drug delivery system. The main concept of using magnetic levitation for drug
delivery purposes are when delivering the drug to a specific point via magnetic actuation,
magnetic material encoated in drug can rupture the artery by attracting towards externally
applied strong magnetic field. By taking magnetically levitated drug to the targeted area, it
will minimize the risk of rupturing of the artery. Another problem that will be minimized
is the dispersion of drug in the blood stream because the drug-coated core will be under the
influence of strongly applied electromagnetic field and drug can be released by the
alteration of electromagnetic fields In this study, the system uses one-dimensional force
system. Two forces counter each other i.e. the electromagnetic force and the gravitational
force. Addition of Ki to Kp and Kd though speeds up the motion when reaching to the
targeted set point, blob stays in levitated condition around the set point thus stability is
increased by the addition of Ki but oscillation are still present that hinders the stability of
the system. Addition of exponential function to smooth out the power. Power was too
much, to decrease the power of Kp, we added an exponential function, in result, it supplies
the power when the error is large, power gets zero when error is reduced to zero. In this
stable system, Kp and Kd gain are applied to minimize the oscillations and keep the blob
levitated at targeted set point.
