1. Paul C. Lauterbur Research Center for Biomedical Imaging Key Laboratory for Magnetic Resonance and Multimodality Imaging of Guangdong Province Shenzhen Key Laboratory of Ultrasound Imaging and Therapy CAS key laboratory of health informatics Institute of Biomedical and Health Engineering Shenzhen Institute of Advanced Technology Chinese Academy of Sciences Shenzhen 518055 P. R. China
2. Department of Materials Science and Engineering Shenzhen Key Laboratory of Printed Organic Electronics Southern University of Science and Technology Shenzhen 518055 P. R. China