ENVIRONMENTALLY SAFE CSPBBR₃/MXENE/MWCNTS HYBRID NANOCOMPOSITES: OPTOELECTRONIC AND STRUCTURAL CHARACTERISTICS FOR POSSIBLE BIOMEDICAL AND HEALTH APPLICATIONS.

Background: Environmentally safe CsPbBr3/MXene/MWCNTs hybrid nanocomposites are of considerable interest, owing to the integrated functional properties of their components. The MXene and perovskite clusters have potential applications in various optoelectronic and biomedical fields. The hybridization of MXenes and CsPbBr3 perovskite with charge-transport/hole-diffusion-supporting MWCNTs further enhances their charge-carrier transport characteristics. Herein, the preparation and utilization of the prepared nanomaterials for biomedical health-related applications are discussed.

Methods: A CsPbBr₃/MXene/MWCNTs hybrid nanocomposite was synthesized using a controlled solution-based process, followed by structural and optical characterization via transmission electron microscopy (TEM), X-ray diffraction (XRD), and UV-Vis spectroscopy. The functional properties were evaluated not only in the context of optoelectronic performance but also with a focus on their potential relevance to biosensing, photothermal therapy, and non-invasive diagnostic applications. Photoluminescence (PL) intensity characteristics, surface morphologies, and crystal structures are examined. The prepared hybrids exhibit stronger PL intensities than individual CsPbBr3 NCs. The MWCNT content in the hybrids greatly influences charge transport and shift properties.

Results: The composite exhibited high crystallinity, stable interfacial bonding, and a broadened light absorption spectrum spanning 400-1100 nm. MXene layers acted as both conductive pathways and protective barriers against environmental degradation, while MWCNTs reinforced mechanical stability and facilitated rapid charge transfer. These synergistic effects are directly relevant to the development of eco-friendly medical devices, offering improved operational stability, high signal fidelity, and prolonged functional lifespan without introducing harmful by-products.

Conclusion: The CsPbBr₃/MXene/MWCNTs hybrid nanocomposite represents a promising material platform for next-generation medical technologies. Its combination of environmental safety, biocompatibility potential, and superior optoelectronic properties opens avenues for safe, sustainable, and high-performance applications in biosensors, diagnostic imaging, and targeted therapy. Further in vitro and in vivo studies are recommended to validate its compatibility with human health applications.