The Janus fabrics designed for personal moisture/thermal regulation have garnered significant attention for their potential to enhance human comfort. However, the development of smart and dynamic fabrics capable of managing personal moisture/thermal comfort in response to changing external environments remains a challenge. Herein, a smart cellulose-based Janus fabric was designed to dynamically manage personal moisture/heat. The cotton fabric was grafted with N-isopropylacrylamide to construct a temperature-stimulated transport channel. Subsequently, hydrophobic ethyl cellulose and hydrophilic cellulose nanofiber were sprayed on the bottom and top sides of the fabric to obtain wettability gradient. The fabric exhibits anti-gravity directional liquid transportation from hydrophobic side to hydrophilic side, and can dynamically and continuously control the transportation time in a wide range of 3–66 s as the temperature increases from 10 to 40 °C. This smart fabric can quickly dissipate heat at high temperatures, while at low temperatures, it can slow down the heat dissipation rate and prevent the human from becoming too cold. In addition, the fabric has UV shielding and photodynamic antibacterial properties through depositing graphitic carbon nitride nanosheets on the hydrophilic side. This smart fabric offers an innovative approach to maximizing personal comfort in environments with significant temperature variations.

Janus 织物专为个人湿度/热量调节而设计，因其增强人体舒适度的潜力而受到广泛关注。然而，开发能够管理个人湿度/热舒适性以响应不断变化的外部环境的智能和动态织物仍然是一个挑战。在此，一种基于纤维素的智能 Janus 织物被设计用于动态管理个人湿度/热量。棉织物接枝N-异丙基丙烯酰胺，构建温度刺激的运输通道。随后，将疏水性乙基纤维素和亲水性纤维素纳米纤维喷涂在织物的底面和顶面以获得润湿梯度。该织物表现出从疏水侧到亲水侧的反重力定向液体输送，并且随着温度从10℃升高到40℃，可以动态连续地控制输送时间在3-66s的宽范围内。这种智能面料可以在高温下快速散热，而在低温下则可以减慢散热速度，防止人体变得过冷。此外，通过在亲水侧沉积石墨氮化碳纳米片，该织物具有屏蔽紫外线和光动力抗菌性能。这种智能面料提供了一种创新方法，可在温度变化较大的环境中最大限度地提高个人舒适度。