Together, these articles weave a picture of the future of multi-dimensional applications of nanotechnology. In the field of environment and health, composite sensors of silver nanoparticles and plant starch provide a highly sensitive solution for the detection of mercury pollution in cosmetics, while gold nanoparticles synthesized by fungi and cellulose extracted from coffee shells offer new possibilities for green antibacterial and biocompatible materials. In the medical field, nanorobots revolutionize cancer treatment with precise drug delivery, and MXene hydrogels and QCA technology promote the development of gene carriers and low-power nanocircuits. In terms of energy, carbon nanomaterials help clean hydrogen production by efficiently catalyzing water decomposition reactions, and fullerene composite membrane technology optimizes water purification performance. In materials science, the mechanical strengthening of chromium-doped glass-ceramics, the diversified synthesis strategies of graphene composites, and the innovative design of boron/tungsten carbide nanocomposites demonstrate the disruptive improvement of nanostructures on material performance. These studies not only break through the limitations of traditional technologies but also respond to the urgent needs of the world in the fields of environmental governance, medical health, energy transformation, etc., with interdisciplinary collaborative innovation, marking a milestone in the transition of nanotechnology from the laboratory to practical application and laying a scientific foundation for a sustainable future.

Highlights:

Cross-disciplinary collaboration: Nanomaterials serve as a "universal tool", bridging the fields of environment, energy, and healthcare. For instance, graphene is utilized not only in gas separation membranes but also as a conductive substrate for photocatalysts; alumina nanoparticles can enhance lubrication performance, as well as increase the thermal conductivity of energy storage materials.
Technical complementarity: Photocatalytic degradation of pollutants (such as methylene blue) and adsorption methods (such as Fe₂O₃/cellulose for chromium removal) form a "dual-path" approach to pollution control; water splitting for hydrogen production and paraffin thermal storage technology jointly point towards the construction of a clean energy system.
Social-demand-driven: The articles are responses to the sustainable development goals—reducing resource waste (aluminum dross recycling), replacing toxic chemicals (plant-oil-based lubricants), addressing public health crises (nanomedicine delivery systems), etc.—highlighting the close coupling of scientific research and social demands.

These studies not only advance the frontier exploration of nanotechnology but also provide key technical support for building a future that is resource-efficient, environmentally friendly, and health-sustainable through interdisciplinary integration and green innovation.