Green Synthesis and Biosafety Assessment of MXene

Abstract

The rise of MXene‐based materials with fascinating physical and chemical properties has attracted wide attention in the field of biomedicine, because it can be exploited to regulate a variety of biological processes. The biomedical applications of MXene are still in its infancy, nevertheless, the comprehensive evaluation of MXene's biosafety is desperately needed. In this review, the composition and the synthetic methods of MXene materials are first introduced from the view of biosafety. The evaluation of the interaction between MXene and cells, as well as the safety of different forms of MXene applied in vivo are then discussed. This review provides a basic understanding of MXene biosafety and may bring new inspirations to the future applications of MXene‐based materials in biomedicine.

Biodegradable Starch-Based Nanocomposite Films with Exceptional Water and Oxygen Barrier Properties

“…Nonetheless, careful assessment is needed for F-containing groups since F-containing materials in contact with food could lead to indirect dietary exposure through migration into food at elevated temperatures . It should be noted that the amount of residual F in the synthesized MXene nanoplatelets is relatively low (∼7%), while newly developed F-free synthesis methods can remove F completely, making subsequent products biosafe.…”

“…The biosafety of Ti 3 C 2 T x MXene can be evaluated by its elemental composition. 56 Ti is a nonessential trace element for human body, and C is the main element of human body. Both elements are generally regarded as safe from a biochemical perspective.…”

Enhanced Capacitive Deionization Performance of Ti3C2Tx/C via Structural Modification Assisted by PMMA-Derived Carbon Spheres

“…The excellent deionization efficiency of CDI technology is highly contingent on the choice of electrode materials. In the past few years, MXene − has gained popularity as a sought-after electrode material owing to its high conductivity, excellent hydrophilicity, and abundant ion adsorption sites with Ti 3 C 2 T x being the most studied. − However, Ti 3 C 2 T x suffers from a serious lamellar stacking problem, which results in unsatisfactory ion removal capacity. Constructing three-dimensional Ti 3 C 2 T x (3D Ti 3 C 2 T x ) is an efficient approach to deal with this problem, and the freeze-drying method is quite straightforward to operate. − Despite this, the structure of the resultant 3D Ti 3 C 2 T x frequently exhibits instability and is susceptible to collapse.…”