The layout of the thesis: In addition to the introduction, conclusion, list of symbols and abbreviations, list of tables, list of images and drawings, list of published works related to the thesis. Project, appendices and references. | s MINISTRY OF EDUCATION VIETNAM ACADEMY OF SCIENCE AND TRAINING AND TECHNOLOGY GRADUATE UNIVERSITY SCIENCE AND TECHNOLOGY ----------------------- Ha Thi Phuong SYNTHESIS AND LUMINESCENT PROPERTIES CHARACTERIZATION OF NANOMATERIALS BASED ON NaYF4 MATRICES CONTAINING Er3 AND Yb3 FOR BIOMEDICAL APPLICATION Major Optical optoelectronic and photonic materials Code 9 44 01 27 SUMMARY OF DOCTORAL THESIS IN MATERIAL SCIENCE Hanoi 2019 The thesis has been completed at Institute of Materials Science - Vietnam Academy of Science and Technology Science supervisors 1. Dr. Tran Thu Huong 2. Prof. Dr. Le Quoc Minh Reviewer 1 Assoc. Prof. Dr. . Reviewer 2 Prof. Dr. Reviewer 3 Assoc. The thesis was defended at Evaluation Council held at Graduate University of Science and Technology - Vietnam Academy of Science and Technology on 2019. Thesis can be further referred at - The Library of Graduate University of Science and Technology. - National Library of Vietnam. 1 INTRODUCTION Nowadays there are many applications of nanomaterials and products made of nanomaterials such as material science energy environment electronics and especially in biomedical sciences. In biomedical science luminescent nanomaterials could make flouorescent labelling possible and effective. Notably in the last few years many types of nanomaterials have become the current subjects of basic and applied research such as nanomaterials containing rare-earth upconversion nanophosphors UCNP . When stimulating this materialby infrared light radiant emission will be aborted in the visible region. Therefore they have become one of the new and recognized research objects in many sectors such as health care security energy . When applying in the health care sector the UCNP has two specific advantages compared to other luminescent materials. First of all using infrared stimulation sources minimizes the object s self-emitting ability and enhances the contrast of micro-images. In addition infrared light is safer for human body
