Department of Mechanical and Production Engineering;
Enugu State University of Science and Technology;
Enugu;
Nigeria;
Department of Mechanical Engineering;
Nnamdi Azikiwe University;
Awka;
Nigeria;
Absorbance; Hamaker; Constant; Hamaker; Coefficient; Human; Immunodeficiency; Virus; Antiretroviral; Drug; Lymphocyte; Van; der; Waals; Forces; Surface; Energy;