A major challenge in developing 2D transition-metal dichalcogenides nanosheets (TMD ns) as nanofillers, catalysts and photothermal reagents lies in its colloidal stability and scalable production. Herein, a biomimetic hybrid strategy to efficiently exfoliate and stably disperse TMD ns in a low-cost, environment-friendly manner is demonstrated. Cellulose nanocrystal (CNC) with controllable morphology and surface chemistry is acted as ideal assisted exfoliation reagent and stabilizer for highly concentrated and thin-layer TMD ns aqueous dispersions. Ultrabroad-pH/temperature (pH = 1–13, temperature = 1–95 °C) stable aqueous dispersions of TMD ns/CNC hybrids and the self-assembly of CNC allow the successful construction of flexible, rapid, and multi-stimuli responsive photonic films, e.g., mechanical strain, humidity and photothermal, providing an avenue for artificial skin, flexible sensor, and smart screen & window applications.

中文翻译：

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通过纤维素纳米晶体有效剥离过渡金属二硫属化物，形成超宽pH/温度稳定的水分散体和多响应光子薄膜

开发二维过渡金属二硫化物纳米片（TMD ns）作为纳米填料、催化剂和光热试剂的主要挑战在于其胶体稳定性和可规模化生产。在此，展示了一种以低成本、环境友好的方式有效剥离和稳定分散 TMD ns 的仿生混合策略。具有可控形貌和表面化学性质的纤维素纳米晶体（CNC）是高浓度薄层TMD ns水分散体理想的辅助剥离试剂和稳定剂。 TMD ns/CNC 混合物的超宽 pH/温度（pH = 1–13，温度 = 1–95 °C）稳定的水分散体和 CNC 的自组装允许成功构建灵活、快速和多刺激响应的光子薄膜，例如机械应变、湿度和光热，为人造皮肤、柔性传感器以及智能屏幕和窗户应用提供了途径。