ABSTRACT

In nanomedicine, two strategies of critical importance will involve the development of methodologies to facilitate the safe entry (ingress) of nanomedical devices into a patient at the onset of any diagnostic or therapeutic procedure, and their subsequent exit (egress) from the patient at the conclusion of these activities. Envisaged sequential nanomedical

CONTENTS

2.1 Introduction: Accessing Inner Sanctums ......................................................................... 17 2.2 Prospective Advanced Nanomedical Device Ingress Strategies .................................. 18 2.3 Oral Ingestion ....................................................................................................................... 19

2.3.1 Ingress via Structures of the Oral Cavity ............................................................. 24 2.3.1.1 Buccal Mucosa Ingress ............................................................................. 24 2.3.1.2 Salivary Duct Ingress ...............................................................................25 2.3.1.3 Gingivial Ingress ....................................................................................... 31

2.4 Pulmonary Ingress .............................................................................................................. 32 2.4.1 Intranasal Ingress .................................................................................................... 39 2.4.2 Intranasal Ingress through the BBB ......................................................................43