**4. Conclusions**

In this work, the unsteady flow and heat transfer of a viscous-based nanofluid over a moving surface emerging from a moving slot has been considered. The effects of involved parameters on the temperature and concentration profiles are illustrated graphically. Furthermore, the variation of reduced Nusselt and Sherwood numbers with the involved parameters; namely Lewis number, Brownian motion parameter and thermophoretic diffusion parameter; are presented graphically.

The obtained results are concluded as follows:


**Author Contributions:** Conceptualization and Supervision, A.A.; Methodology, S.M.; Writing—Original Draft Preparation, D.L., S.M. and A.A.; Writing—Review and Editing, U.F. and A.A.; Funding Acquisition, D.L. and U.F.

**Funding:** This research was funded by China Postdoctoral Science foundation (No. 189607).

**Acknowledgments:** Adeel Ahmad would like to acknowledge the support by the CIIT Research Grant Program of COMSATS University Islamabad, Pakistan (No. 16-68/CRGP/CIIT/ISB/17/71141).

**Conflicts of Interest:** The authors declare no conflict of interest.
