**Authors' contributions**

I declare that this work was done by the author named in this article. PS conceived, designed the study, carried out the literature collection of the data, writing, and corrected the manuscript. The author read and approved the final manuscript.

#### **Consent for publication**

Not applicable.

#### **Competing interests**

The authors declare no competing interest.

#### **Availability of data and materials**

All the information in the manuscript has been referred from the included references and is available upon request from the corresponding author.

#### **Abbreviations**


*Smart Drug Delivery*
