1. 纤维素组合化学：多功能高分子的模块化设计与精确可控合成。
2. 纤维素微纳米功能材料：纤维素微球、超细纤维、纤维素微凝胶等。
3. 纤维素基功能材料及应用：防伪与加密、示踪与溯源、可视化检测与监测、智能包装、农林病害防治、食品安全与生物医药等。
提出了构建纤维素基发光材料的一般性方法，解决了传统荧光分子的聚集诱导淬灭问题，实现了可视化食品监测、动态荧光防伪与加密等，并应用于中华人民共和国港澳台居民居住证。发展了天然高分子微纳米材料的绿色加工新工艺，实现纤维素基微纳米材料的低成本规模化生产与应用。本人目前共申请国家发明专利24项，授权专利6项。在Nat. Commun., Adv. Funct. Mater., ACS Nano, Nano Lett.等国际学术期刊发表学术论文18篇。
(1) Xin Ji, Weiguo Tian* et al. Cellulose-based photothermal coating: a sustainable solution for seed protection and long-term grain storage. ACS Nano 2023, 17(14): 13861–13871.
(2) Xin Ji, Weiguo Tian* et al. Anionic polymerization of nonaromatic maleimide to achieve full-color nonconventional luminescence, Nature Communications, 2022, 13: 3717.
(3) Zhan Xu, Weiguo Tian* et al. Cellulose-based cryogel microspheres with nanoporous and controllable wrinkled morphologies for rapid hemostasis, Nano Letters 2022, 22(15): 6350-6358
(4) Chaojun Wen, Weiguo Tian* et al. Cellulose-based photothermal microspheres: a sustainable solution to harvesting freshwater outdoor, ACS Sustainable Chemistry & Engineering 2022, 11(1): 256-266.
(5) Weiguo Tian et al. Phototunable full-color emission of cellulose-based dynamic fluorescent materials. Advanced Functional Materials 2018, 28(9): 1703548.
