新型医用金属材料，具体包括：材料性能组织优化、增材制造制备、表面改性、生物医学功能（抗菌、促进成骨、促进血管再生等）、临床转化研究等。

以第一作者或通讯作者发表SCI论文50余篇，包括1篇BIOACT MATER，1篇ACTA BIOMATER，1篇CORROS SCI，1篇ACS APPL MATER INTER，19篇J MATER SCI TECHNOL。总计他引1000余次，单篇最高他引106次。代表工作：
1.Hui Liu, Yulong Tang, Shuyuan Zhang, Huan Liu, Zijian Wang, Yue Li, Xinluan Wang, Ling Ren*, Ke Yang*, Ling Qin*. Anti-infection mechanism of a novel dental implant made of titanium-copper (TiCu) alloy and its mechanism associated with oral microbiology. Bioactive Materials, 2021, Online. 通讯作者（IF 14.593）
2.Cong Peng, Yanhui Zhao, Shujing Jin, JingRen Wang, Rui Liu, Hui Liu, Wenbo Shi, Sharafadeen Kunle Kolawole, Ling Ren*, Baohai Yu, Ke Yang. Antibacterial TiCu/ TiCuN multilayer films with good corrosion resistance deposited by axial magnetic field-enhanced arc ion plating. ACS Applied Materials & Interfaces, 2019, 11, 125-136. 通讯作者（IF 9.229）
3.Yifu Zhuang, Ling Ren, Shuyuan Zhang, Xiang Wei, Ke Yang∗, Kerong Dai∗. Antibacterial effect of a copper-containing titanium alloy against implant-associated infection induced by methicillin-resistant Staphylococcus aureus. Acta Biomaterialia, 2020, 119, 472-484. 共同一作（IF 8.947）
4.Ling Ren, Xiaohe Xu, Hui Liu, Ke Yang*, Xun Qi*, Biocompatibility and Cu ions release kinetics of copper-bearing titanium alloys. Journal of Materials Science & Technology, 2021, 95, 237-248. 第一作者（IF 8.067）
5.Hai Wang, Wei Song, Konrad Koenigsmann, Shuyuan Zhang, Ling Ren*, Ke Yang. The role of prismatic slip dependent dynamic recrystallization in the fabrication of a submicrocrystalline Ti-Cu alloy with high thermostability. Materials & Design，2020, 188, 108475. 通讯作者（IF 7.991）
Muhammad Ali Siddiqui, Ihsan Ullah, Sharafadeen Kunle Kolawolea,b Cong Peng, Jiewen Wang, Ling Ren*, Ke Yang，Digby D. Macdonaldd*. Study the existing form of copper (p-type oxide /segregation) and its release mechanism from the passive film of Ti-7Cu alloy, Corrosion Science, 2021, 190, 109693. 通讯作者（IF 7.205）