Guan, G., You, M., Liu, X., Wu, Y.-L., Ye, E., Li, Z., Tris-Stabilized MoS2 Nanosheets with Robust Dispersibility and Facile Surface Functionalization. Adv. Mater. Interfaces 2019, 6, 1900585. https://doi.org/10.1002/admi.201900585
Here, tris(hydroxymethyl)aminomethane (i.e., Tris) is reported to be an effective protecting agent to stabilize 2D nanomaterials in water for various enhanced applications. As demonstrated, molybdenum sulfide (MoS2) nanosheets are first exfoliated from MoS2 bulk under a low-energy sonication in the assistance of protein bovine serum albumin (BSA), and then BSA molecules are replaced with Tris to stabilize the exfoliated MoS2 nanosheets. The Tris-stabilized MoS2 nanosheets have a robust dispersibility to resist long-term storage (e.g., 2.5 years), high temperature (e.g., 220 °C), and high speed centrifugation (e.g., 12 000 rpm). Furthermore, they also exhibit high biocompatibility and promising photothermal effect, which provide a better performance in photothermal therapy for inhibiting the growth of tumor. In addition, the surface Tris molecules readily introduce the grafting of polydopamine on MoS2 nanosheets to form a universal platform for coating of other functional polymers on nanosheets. Overall, this work not only brings more opportunities to exploit the outstanding applications of 2D nanomaterials, but also suggests a new and effective route to prepare the composite of nanosheets and functional polymers for their synergistic properties.
This research is supported by core funding from: This research is supported by the Institute of Materials Research and Engineering, A*STAR.
Grant Reference no. : Grant number is not applicable.
This is the peer reviewed version of the following article: Guan, G., You, M., Liu, X., Wu, Y.-L., Ye, E., Li, Z., Tris-Stabilized MoS2 Nanosheets with Robust Dispersibility and Facile Surface Functionalization. Adv. Mater. Interfaces 2019, 6, 1900585. https://doi.org/10.1002/admi.201900585, which has been published in final form at http://dx.doi.org/10.1002/admi.201900585. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.