abstract: the china scholarship council (csc) is an institution aiming to improve the training of creative and distinguished postgraduates and enhance the development of china’s higher education. over the past several years, csc has sponsored many talented chinese students for overseas study. from january 2021 to september 2021, mr. xianming qin, supervised by prof. xueyong wei, was sponsored by csc to perform research work at the department of health tec at the technical university of denmark (dtu) as a guest scientist, supervised by prof. yi sun. in this presentation, a systematic report about his research work on the design and preparation of instruments related to self-assemble nanoparticle and low temperature pcr droplet microfluidics. due to epidemic, he didn’t have much experience about the cultural in denmark, which will not be presented.