ABSTRACT
Nowadays, challenges in drug delivery include engineering intelligent vectors for simultaneous diagnosis and treatment, vectors that are safe, easily administered, and with a reduced cost. Moreover, there is an increasing need for controlling the delivery with respect to the dose and the site level, in order to decrease adverse side effects. As a matter of fact, many important site-selective drugs, such as highly toxic antitumor molecules, require “zero release” before reaching the targeted cells or tissues. This chapter underlines
1.1 Silica Responding to Challenges in Drug Delivery ..........................................4 1.1.1 Porous Materials ...................................................................................4 1.1.2 Administration Route ...........................................................................5
