Funding for this research was provided by:
U.S. Department of Veterans Affairs (Field-Based Meeting Grant)
Received: 2 November 2017
Accepted: 23 February 2018
First Online: 23 March 2018
Compliance with ethical standards
: All authors except the following have indicated no financial conflicts of interests in relation to writing of this review. Even though not relevant to this review, Dr. Hemant K Roy has declared that he is a co-founder and shareholder in startup company Nanocytomics and American BioOptics LLC. Additionally, Subhra Mohapatra (co-founder and scientific advisor), Shyam Mohapatra (co-founder and scientific advisor) and the University of South Florida have equity interest in Transgenex Nanobiotech Inc. The terms of the conflict management have been reviewed and approved by the University of South Florida, Tampa, in accordance with its conflict of interest policies.