
Keywords: برای; ATR; Attenuated Total Reflectance; BET; Brunauer-Emmett-Teller; CS; chitosan; DC; drug content; DDS; drug delivery system; DOXY; doxycycline hyclate; DSC; Differential Scanning Calorimetry; Dv; volume diameter; EC; ethyl cellulose; EE; efficacy of encapsu