Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 14, Issue 5, Pages 7130-7140Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.1c20990
Keywords
magnetic nanorods; anisotropy; plasmonic; core-shell; agarose; hydrogels; injectable; magnetothermia
Funding
- Spanish State Research Agency (AEI) [PID2019-106099RB-C43/AEI/10.13039/501100011033]
- Department of Education of the Basque Government
- Programa de Perfeccionamiento de Personal Investigador Doctor, Gobierno Vasco [POS-2020-1-0028, IT-1005-16]
- Basque Government Industry Department under the ELKARTEK program [PIBA-2018-06]
- Basque Government Education Department under the ELKARTEK program [IT-1005-16]
Ask authors/readers for more resources
This study reports on the synthesis of Fe3O4@Au core-shell nanorods and their incorporation into an agarose hydrogel to achieve anisotropic magnetic and optical properties. The results demonstrate the potential application of these materials in magneto- and photothermal therapy.
Hyperthermia therapeutic treatments require improved multifunctional materials with tunable synergetic properties. Here, we report on the synthesis of Fe3O4@Au core-shell nanorods and their subsequent incorporation into an agarose hydrogel to obtain anisotropic magnetic and optical properties for magneto- and photothermal anisotropic transductions. Highly monodisperse ferrimagnetic Fe3O4 nanorods with tunable size were synthesized using a solvothermal method by varying the amount of hexadecylamine capping ligands. A gold shell was coated onto Fe3O4 nanorods by the intermediate formation of core-satellite structures and a subsequent controlled growth process, leading to an optical response variation from the visible to the near-infrared (NIR) region. The nanorods were oriented within an agarose hydrogel to fabricate free-standing anisotropic materials, providing a proof-of-concept for the applicability of these materials for anisotropic magneto- and photothermia applications. The strong gelling behavior upon cooling and shear-thinning behavior of agarose enable the fabrication of magnetically active continuous hydrogel filaments upon injection. These developed multifunctional nanohybrid materials represent a base for advanced sensing, biomedical, or actuator applications with an anisotropic response.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available