This special section of INTEGRATED CIRCUITS AND SYSTEMS (ICAS) showcases selected papers from the 2024 IEEE Biomedical Circuit and System Conference (BioCAS), held in Xi’an, Shanxi, China, from October 24th to 26th, 2024. BioCAS is a prestigious international platform that highlights interdisciplinary research and development endeavors at the convergence of medicine, life sciences, physical sciences, and engineering, shaping the future of medical devices and health-care systems. This conference brings together experts from various communities to expand their knowledge in emerging research areas at the intersection of life sciences and circuits and systems engineering.

BioCAS 2024 received a total of 319 submissions, out of which 66 were accepted for oral presentations and 117 were accepted for poster presentations. Alongside the regular sessions, the conference provided a range of expert-led tutorials. This year marks the 20th anniversary of BioCAS, a significant milestone celebrated through the organization of various special sessions during the event. These sessions included "20 Years of Technology Development at BioCAS" and "High Throughput Neural Interface Circuits and Systems." In this special section, we are thrilled to present selected papers from these two special sessions, highlighting cutting-edge research and technological advancements.

The invited papers featured in this special section are the result of a collaborative effort between esteemed experts and scholars from the international research community. These extended versions of exceptional articles, originally presented at the BioCAS conference, delve deeply into various topics related to biomedical circuit and system design.

Encompassing sensor interface circuits, physiological monitoring, and health tracking, the selected papers cover a wide range of areas crucial to the advancement of healthcare applications. The editorial process was led by Guest Editor Prof. Milin Zhang from Tsinghua University, ensuring that all submissions underwent the same rigorous evaluation as regular issue papers. Initially, seven papers were invited for this Special Section, and after a thorough review process, three papers were accepted for publication.

As the Guest Editor, I would like to express my sincere gratitude to all the reviewers for their invaluable time, expertise, and valuable feedback provided to the authors. I would also like to acknowledge the support of the Editors-in-Chief, Profs. Ming Liu and Peter Lian, the BioCAS 2024 Technical Program Co-Chairs and the BioCAS 2024 General Co-Chairs whose unwavering dedication played a crucial role in the success of the conference. Lastly, I extend my heartfelt thanks to all the authors who contributed to this Special Section and to BioCAS 2024. It is my hope that this special section will serve as a valuable resource for researchers, practitioners, and students interested in the exciting field of biomedical circuit and system design.

MILIN ZHANG, Guest Editor Department of Electronic Engineering Tsinghua University

Beijing, 100084, China

E-mail: zhangmilin@tsinghua.edu.cn

MILIN ZHANG (Senior Member,, IEEE) received the B.S. and M.S. degrees in electronic engineering from Tsinghua University, Beijing, China, in 2004 and 2006, respectively, and the Ph.D. degree from the Electronic and Computer Engineering Department, Hong Kong University of Science and Technology, Hong Kong. She is currently an Associate Professor with the Department of Electronic Engineering, Tsinghua University. After finishing her doctoral studies, she was a Postdoctoral Researcher at the University of Pennsylvania (UPenn), Philadelphia, PA, USA. In 2016, she joined Tsinghua University. Her research interests include sensor interface circuit and system design for biomedical applications and design of various non-traditional imaging sensors.

She is/was the Senior Associate Editor of IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II: EXPRESS BRIEFS, an Associate Editor for TBioCAS, and a TPC member of ISSCC, CICC, A-SSCC, and CASS. She is the Chapter Chair of the SSCS Beijing chapter. She is a Distinguished Lecturer for CASS and IEEE WiE. She was the recipient of the Best Paper Award of the BioCAS Track at the 2014 International Symposium on Circuits and Systems (ISCAS), the Best Paper Award (1st place) of the

2015 Biomedical Circuits and Systems Conference (BioCAS), the best Student Paper Award (2nd place) of ISCAS 2017.