Last week, Department of Biomedical Engineering (BME) welcomed Purdue University Chengde Mao to campus. He had been invited to give the 164th lecture in the Biomedical Engineering Distinguished Lecture Series, in which he gave a fascinating lecture entitled, “Programmed DNA Self-Assembly.” Professor Jiang Xingyu, Head of the Department of Biomedical Engineering hosted the lecture. Prof. Chengde Mao(Fourth from the left) In this lecture, Prof. Mao introduced molecular self-assembly promises an effective approach for nanoconstructions. DNA, in particular, has been used as a programmable ‘smart’ building block for the assembly of a wide range of nanostructures. Prof. Mao discussed the recent development in programmed DNA self-assembly in his research group, including: DNA polyhedra, DNA 2D arrays and 3D crystals, and his exploration in RNA nanostructures.
Last week, Department of Biomedical Engineering (BME) welcomed senior scientist PI of National Research Council (CNR) of Italy Dan Cojoc to campus. He had been invited to give the 165th lecture in the Biomedical Engineering Distinguished Lecture Series, in which he gave a fascinating lecture entitled, “Cell Mechanics Investigated with Optical Techniques.” Professor Jiang Xingyu, Head of the Department of Biomedical Engineering hosted the lecture. Dr. Dan Cojoc In his lecture, Dr. Dan Cojoc talked about investigating the mechanical properties of cells represents a high potential in finding label-free markers of cancer and other diseases. He discussed the application of two optical techniques to cell mechanics: optical tweezers (OT) and quantitative phase imaging (QPI). Moreover, he introduced QPI as a non-contact technique allowing to measure cell stiffness and compare it with OT and AFM. Finally, he showed that OT is an adequate tool to study cell mechanotransduction. Chair Prof. Xingyu Jiang and Dr. Dan Cojoc
Chris Edwards | 12/17/2019 12 On December 15, the Chinese Academy of Engineering (CAE) Academician Cheng Jing came to Southern University of Science and Technology (SUSTech) to give an insightful lecture on “Technological Innovation, Transformation, and Application.” Department of Biomedical Engineering (BME) Head Chair Professor Jiang Xingyu chaired the meeting. Professor Cheng Jing is a Tsinghua University School of Medicine (Department of Biomedical Engineering) Chair Professor and the director of the National Engineering Research Center of Beijing Biochip Technology. He is also a member of the International Eurasian Academy of Sciences. Professor Cheng’s research is mainly focused on basic and clinical medical-related biotechnology. He has studied areas such as diagnostic and prognostic molecular typing chip technology systems that have led to biochips required for gene, protein and cell analysis. Some of his biochips have been certified by the National Medical Products Administration (NMPA) and entered clinical trials. Professor Cheng has published 145 SCI-standard papers in journals like Nature Biotechnology and 8 monographs. He has received more than 260 domestic and foreign patents (at the time of publishing) and has also won the second prize in the State Science and Technology Prizes on two separate occasions. Professor Cheng discussed the integration of a healthy nation with biomedical engineering. He pointed out that the new biochip, using the principles of traditional Chinese medicine (TCM) visual inspection is a good example. An analysis of a patient’s eye can assist doctors in better-diagnosing problems, and thereby reducing errors. New surgeries are replacing traditional techniques, and micro-non-invasive operations have led to “no disinfection, no anesthesia and no wound” procedures. He also highlighted the importance of proactive health prevention and chronic disease control within the ambit of Healthy China, as well as looking after the elderly in their homes. Biomedicine developments have improved our quality of life, and this should be treasured. Professor Cheng took many questions from the enthusiastic students and faculty at the end of his presentation.
On December 9, Southern University of Science and Technology (SUSTech) hosted the first meeting of the “Synthetic Biology” key project of the National Key R&D Program. It is a project being undertaken by SUSTech that seeks to use synthetic DNA for data storage. SUSTech Acting Vice President Zhang Dongxiao, Department of Biomedical Engineering (BME) Head Professor Jiang Xingyu, Hunan University Professor Tan Weihong, and Shanghai Jiaotong UniversityProfessor Fan Chunhai attended the meeting. They were joined by members of the Shenzhen Municipal Science, Technology and Innovation Commission, as well as key members of this project. Several expert groups also sent representatives to the meeting, along with members of the project team. BME Head Professor Jiang Xingyu introduced all the attendees to the meeting. He was followed by SUSTech Acting Vice President Zhang Dongxiao, who spoke on behalf of SUSTech. Expert group researcher Dai Junbiao highlighted the importance of this project for the nation and hoped that everyone would work together in laying the foundation for the future development of DNA storage. Hunan University Academician Tan Weihong chaired the meeting. BME Department Head Professor Jiang Xingyu, as project leader and chief scientist, gave a detailed briefing for the project, along with the sub-project leaders. The project advisory team provided a lot of advice for the teams.
Chris Edwards | 09/20/2019 94 The first cohort of fifty Xplorer Prize winners was awarded after four months of rigorous analysis. Two of those fifty Xplorer Prize winners were Southern University of Science and Technology (SUSTech) Professor Jiang Xingyu (Department of Biomedical Engineering) and Associate Professor Liu Weishu (Materials Science and Engineering). Both young scientists stood out from over one thousand applicants for their cutting-edge interdisciplinary research, in energy & environmental protection respectively. They were the only winners in Shenzhen. Dr. Jiang Xingyu is the Chair Professor and Head of the Biomedical Engineering Department of SUSTech. He received his Bachelor of Chemistry from the University of Chicago in 1999 and his Ph.D. from the Department of Chemistry of Harvard University in 2004. In 2005, he began to work in the National Center for Nanoscience and the University of the Chinese Academy of Sciences. Dr. Jiang Xingyu received funding from the National Outstanding Youth Science Fund in 2010, the Top Youth in 2013, the Special Allowance of the State Council in 2014, the Innovative Talents Promotion Plan of the Ministry of Science and Technology, and the Chief Scientist in the Key Special Project of the National Key Research and Development Plan of the Ministry of Science and Technology in 2019. He has published more than 200 papers, and his research directions include microfluidic chips and nano-biomedicine. He was deputy editor of Nanoscale (impact factor 7.3). The Xplorer Prize is a non-governmental and public interest award for young scientists and technicians aged 45 and below who are working full-time on the Chinese mainland. The Xplorer Prize was created by Ma Huateng, Chairman and Chief Executive Officer of Tencentand founder of the Tencent Foundation, and Professor Rao Yi of Peking University in cooperation with well-known scientists such as SUSTech President Chen Shiyi. The Tencent Foundation provided the initial funding for the award. Xplorer Prize announcement address: https://xplorerprize.org/gonggao.html
Last week, Department of Biomedical Engineering (BME) welcomed Professor of Peking University Jianzhong Xi to campus. He had been invited to give the 141st lecture in the SUSTech Lecture Series, in which he gave a fascinating lecture entitled, “Mini-Tumour Chip as a Robust Tool for Precision Cancer Therapy.” Professor Jiang Xingyu, Head of the Department of Biomedical Engineering hosted the lecture. Professor Jianzhong Xi In his lecture, Prof. Xi talked about a novel personalized drug testing platform named patient-derived tumor-like cell clusters (PTCs) chip or mini-tumour chip. He made comparision of mini-tumour chip with 3D cultures and organoids.
Chris Edwards | 07/31/2019 Last week, Massachusetts Institute of Technology professor Timothy M Swager came to Southern University of Science and Technology (SUSTech) to give the 232nd lecture in the SUSTech Lecture Series. Professor Swager is a member of both the US National Academy of Sciences and American Academy of Arts and Sciences. His lecture, entitled “Liquid Colloids for the Detection of Enzymes and Pathogens,” was hosted by Professor Jiang Xingyu, Head of the Department of Biomedical Engineering. Timothy M. Swager is an internationally renowned colloidal & polymer chemist and a pioneer in chemical sensors. He is the John D. MacArthur Chair Professor of Chemistry and the Director of the Deshpande Center of Technological Innovation at the Massachusetts Institute of Technology (MIT). He has published more than 450 high-quality papers and more than 90 patents so far. His honors include the Linus Pauling Medal, the Lemelson-MIT Prize for Invention and Innovation, the American Chemical Society Prize for Creative Invention and the Carl S. Marvel Creative Polymer Chemistry Award (ACS). In his lecture, Timothy M. Swager talked about the synthesis and application of dynamic droplets. He compared the dynamic droplet to the blinking of the smart eye. The synthesis of the droplet can be used as a sensor to detect bacteria and viruses. The team also applied it to the detection of bacteria on the surface of smart phones. Timothy M. Swager also highlighted how complex liquid emulsions (droplets) can be reconfigured chemically or biochemically. The purpose of these configurations, he said, is to generate new transduction mechanisms to develop chemical and biological sensors. He pointed out that complex droplets behave like optical lens systems, in that small changes in surface tension can change focal length, or induce systems to switch between states. He believed that induced optical changes can be triggered by chemical, photochemical or biochemical stimuli to produce a new generation of sensors.
Chris Edwards | 07/31/2019 Last weekend, Southern University of Science and Technology (SUSTech) welcomed Professor of Pharmacology and Fellow of the Royal Society of Canada Moshe Szyf to campus. He had been invited to give the 231st lecture in the SUSTech Lecture Series, in which he gave a fascinating lecture entitled, “The Signature of Liver Cancer in Immune Cells DNA Methylation.” Professor Jiang Xingyu, Head of the Department of Biomedical Engineering hosted the lecture. Professor Moshe Szyf received his Ph.D. from the Hebrew University and did his postdoctoral fellowship in genetics at Harvard University. He holds a James McGill Professor in the Department of Pharmacology and Therapeutics and is the GlaxoSmithKline-Canadian Institute of Health Chair Professor of Pharmacology at McGill University in Canada. Professor Moshe Szyf is a member of the Canadian Academy of Health Sciences and a fellow of the Royal Society of Canada. He is the co-founding director of the Sackler Institute of Epigenetics and Psychophysiology at McGill University and a researcher at the Canadian Institute of Advanced Research Experience-based Brain and Biological Development Program. In 1994, as a co-founder of the epigenetic Sackler project, Professor Moshe Szyf first proposed the significance of medical transformation in DNA methylation. He founded Methylgene Inc., the first enterprise in the world to develop epigenetic drugs, in Montreal, Canada. He is the founding editor of the world’s first epigenetics journal, Epigenetics. So far, Professor Moshe Szyf has published more than 280 research papers on the biological role of DNA methylation in a wide range of areas. In his lecture, Professor Moshe Szyf introduced the role of epigenetics in the development of tumors, the influence of a child’s living environment on their genomes, and advances in epigenetic research. He pointed out that DNA methylation diagnosis is done by early detection. By comparing the differences of genome-wide methylation sites in healthy people, different diseases and patients at different stages of disease, early diagnosis of disease and prediction of stage diagnosis and treatment can be achieved. Professor Moshe Szyf also elaborated the principles of molecular changes in DNA of host immune cells in HCC. The DNA methylation diagnostic technologies introduced by Moshe Szyf are of great significance to understand the mechanisms of disease and their treatment. The Q&A session at the end of the lecture was very lively, with many attending students and faculty members asking intelligent questions of Professor Moshe Szyf.
Georgia Institute of technology Professor Xia Younan was a recent visitor to Southern University of Science and Technology. Prof. Xia Younan gave the 206th lecture in the SUSTech Lecture Series, with an illuminating lecture entitled “Putting Nanomaterials to Work for Biomedical Research.” Head of the Department of Biomedical Engineering Jiang Xingyu presided over the lecture. Xia Younan is an outstanding scholar in the field of nanomedicine, Brock Family Chair and Georgia Rearch Alliance, Department of Bioengineering and Department of Chemistry and Biochemistry, Georgia Institute of Technology (Georgia Tech). His main research interests are nanostructured materials and their applications in biomedical research. In the lecture, Xia Younan first introduced the research direction of his research group, which mainly includes nanocrystalline synthesis, Structure-Performance relationship, catalysis, nanomedicine, and regenerative medicine. In recent years, he has focused on the application of nanomaterials in biomedicine. In his lecture, he shared many excellent and representative work cases. For example, mixing simple and cheap fatty acids can lower the phase transition temperature (40 degrees Celsius), which is conducive to drug release in vivo. Xia Younan also introduced a micro-drop reactor designed by his team for the automation and large-scale production of precious metal nanocrystals. The system can be automated through online separation and purification functions, providing a simple and reliable way for the industrial production of precious metal nanocrystals. After the lecture, Xia Younan answered the questions raised by the teachers and students.
December 12th, our department hosted the SUSTech Macromolecular Biomaterials Summit. SUSTech President Chen Shiyi, Academician Tang Benzhong of the Chinese Academy of Sciences and Professor Liu Bin, Fellow of Academy of Engineering Singapore joined more than 30 experts and scholars in macromolecular biomaterials at the summit. Department Head Jiang Xingyu chaired the summit. Chen Shiyi welcomed everyone and thanked them for supporting the development of SUSTech. In his speech, Tang Benzhong said that Shenzhen is the capital of innovation and hoped that exchanges between experts and scholars would lead to sparks of innovative ideas. The two-day conference consisted of four parts. Topical issues included tissue engineering, controlled drug release, regenerative medicine, biomedical imaging, gene therapy, and nanobiotechnology. Experts at the summit focused on the exploration of polymeric biomaterials and their applications in biomedical engineering. They discussed the latest research results, with a view to promoting the innovation and application of new generation of polymeric materials in translational research. After the forum, experts and scholars attended the Cryo-Electron Microscopy Center and explored the SUSTech campus. Source: Department of Biomedical Engineering Translated and Adapted: Chris Edwards Proofread: Xia Yingying
Our Department and Department of Chemistry co-worked to hold the Biomedical-Chemometrics Frontier Symposium. The Departments of Biomedical Engineering and Chemistry were the co-sponsors of this forward-looking symposium. Academicians from the Chinese Academy of Sciences and the Third World Academy of Sciences were joined by more than 30 experts from China and abroad, in fields such as biomedical engineering, chemical measurement, and analysis. The symposium sought to discuss and promote the development of the interdisciplinary research between these two fields in Shenzhen and China. SUSTech Vice President Lu Chun attended the symposium and Dean of the College of Sciences Yang Xueming was the chairperson. Lu Chun welcomed everyone to the symposium. He hoped that a variety of academic ideas would collide, resulting in more innovations in scientific research and related applications. Lu Chun also presented Zhang Yukui, Academician of the Chinese Academy of Sciences, with a letter of appointment as an adjunct professor. The two-day symposium discussed four major topics: bio-mass spectrometry, microfluidic chips, nanotechnology, and biomedicine. Department Head Jiang Xingyu from Biomedical Engineering and Chair Professor Zheng Zhiping from Chemistry were some of the SUSTech faculty members that attended the symposium.
The morning of September 21 saw academician Yan Xiyun of the Chinese Academy of Sciences give an enthralling lecture on the “Nanozyme: New Strategy for Cancer Therapy” for our students and faculty members. The lecture was hosted by chair professor Xingyu Jiang, the head of our department. Professor Yan Xiyun was made an academician of the Chinese Academy of Sciences in 2015 and is currently a researcher at the Institute of Biophysics of the Chinese Academy of Sciences. She has published more than 150 research papers, and her research results in nano-enzyme applications won second prize of the National Natural Science Award. In the lecture, Yan Xiyun first introduced the discovery process of nano-enzymes. She described it as a “cross-border” and “by chance” process. Inorganic nano-materials are multi-functional molecules, with enzyme activity and nano-effect, that is, the smaller the diameter, the higher the activity, and the activity is similar to the natural enzymes. She specifically mentioned that Fe3O4 is a class of mimetic peroxidase. This phenomenon was discovered in 1993, but in 2007 Yan Xiyun first published an article from the enzymatic point of view and established a systematic method. The use of the Fe3O4 nano-enzyme test strip to detect Ebola virus solves the problem of limited local conditions and is a hundred times more sensitive than the traditional method. Ferritin-loaded drugs can target tumor cells and cross the blood-brain barrier. For the first time, Yan Xiyun’s research group defined the nanozyme activity unit and established standardization. The nanozyme activity unit is the amount of enzyme required to catalyze the conversion of 1 μmol of the substrate to product per minute under optimal reaction conditions. After the lecture, the teachers and students asked many questions, which Yan Xiyun answered professionally in the lively atmosphere.