Skip to main content
Log in

Enhancement of caffeine adsorption on boron nitride fullerene by silicon doping

  • Original Article
  • Published:
Applied Nanoscience Aims and scope Submit manuscript

Abstract

The physicochemical interaction between undoped- (B24N36; BNF) and silicon-doped boron nitride (B24N35Si; Si-BNF) fullerenes with caffeine was studied in the frame of the density functional theory (DFT). The influence of chemical composition in the capability of the fullerene to interact with caffeine was analyzed in terms of its structural stability, adsorption energy and charge distribution. The obtained results show that caffeine adsorption is enhanced by Si doping. The adsorption energy of caffeine molecule onto the BNF was calculated to be − 0.26 eV, whereas it was − 0.33 eV after doping. This effect is attributed to a rearrangement of the charge density driven by the substitutional defect (SiN). After caffeine adsorption, an electron density displacement from the Si–BNF to the sorbate which stabilizes the caffeine/Si–BNF system is identified. Moreover, Si doping decreases the chemical hardness, while it induces a net spin angular momentum in the fullerene. The magnetic moment of the Si–BNF was determined in 1.0 µB, which does not vanish after caffeine adsorption. The physicochemical parameters of the Si–BNF, along with its magnetic behavior, could favor using it as nanovehicle for drug delivery.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8

Similar content being viewed by others

References

Download references

Acknowledgements

This work was partially supported by the projects VIEP-BUAP (CHAE-ING18-G), CONICYT/FONDECYT Iniciación en Investigación no. 11170289, and CONICYT/PCI REDI170303. We thank the support given by the National Laboratory Supercomputing Southeast housed in the BUAP.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to E. Chigo Anota.

Additional information

Publisher’s Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Electronic supplementary material

Below is the link to the electronic supplementary material.

Supplementary material 1 (DOCX 1301 KB)

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

González, V.R., Escobedo-Morales, A., Cortés-Arriagada, D. et al. Enhancement of caffeine adsorption on boron nitride fullerene by silicon doping. Appl Nanosci 9, 317–326 (2019). https://doi.org/10.1007/s13204-018-0901-y

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s13204-018-0901-y

Keywords

Navigation