Our research is highly interdisciplinary and lies at the interface of materials chemistry, analytical chemistry, and biomedical engineering. We develop unconventional materials, devices, and tools as analytical/biomedical platforms to sense and modulate the physiological and biochemical events at the biotic/abiotic interfaces.

We start from the synthesis, assembly, and surface chemistry of inorganic colloidal nanocrystals (Nature 2017, ACS Nano 2023, Adv Sci 2023) and other solution-processable, inorganic or organic materials. To integrate these materials in optoelectronic/analytical/biomedical device platforms, we design the surface photochemistry and develop a series of methods for their 2D patterning (Sci. Adv. 2022, Angew 2022, Nat. Commun. 2024, ACS Nano 2022) and 3D printing (Science 2023, Science 2022). The combination of advanced materials and patterning strategies leads to 1) high-performance, pixelated QLEDs (Nano Lett 2023, ACS Nano 2024, with implications in QD displays) and other optoelectronic devices; and 2) flexible/implantable bioelectronics for in-vivo sensing (Sci. Adv. 2019, Sci. Adv. 2021), neuromodulation, and therapy (Adv. Funct. Mater. 2021) at cell or tissue levels, and even in living animals.