Yonsei Institute for Advanced Study

On Thursday, January 20th, 2022, the second Special Seminar of IBS CNM & NanoBME will be held at the Auditorium at IBS Hall at 4 p.m.

The presentation will highlight recently demonstration of the anticipated benefits of the upconverted hot electrons in several photocatalytic reduction and redox-neutral reactions. Development of new material platform for more efficient hot electron upconversion and the prospects of expanding the application of the energetic hot electrons in beyond photocatalysis will be discussed.

In this talk, we discuss the recent progress in the design and fabrication, modeling and simulation, and actuation and control of magnetic soft materials and robots. We discuss the continuum mechanical framework for hard-magnetic soft materials and design guidelines for optimal performance of magnetic soft actuators. We then discuss the potential of magnetic soft robots for biomedical applications, focusing on our example of magnetic soft continuum robots towards telerobotic neurointervention for treating stroke and aneurysms.

In this seminar, magnetically actuated small scale magnetic robots will be presented. The magnetic actuation has advantages over conventional robotic actuation methods based on linkages, because of directly and remotely addressable magnetic forces and torques. In medical robotics, such favorable properties can minimize the invasiveness of diagnostic and surgical procedures. In this talk, this will be shown in two applications: magnetically actuated soft capsule endoscopes and magnetically actuated milli-scale robots for neural navigation. By applying the magnetic principles to the robotics methods, such as design, localization, calibration and control methods, the magnetically actuated robots are designed, fabricated, and controlled at our command. This talk will focus on the use of magnetics into robotic systems, dealing with interesting properties of magnetic actuation, and showing how this technology can be seamlessly combined with the current medical technologies.

In this lecture, I will review immune responses against SARS-CoV-2 and VOCs. In particular, I will focus on SARS-CoV-2-specific CD4+ and CD8+ T cell responses that have been detected and characterized among not only COVID-19 patients and convalescents but also unexposed individuals. I will lecture on phenotypes and functions of SARS-CoV-2-specific T cells in COVID-19 patients and the relationships between SARS-CoV-2-specific T cell responses and the severity of COVID-19. In addition, I will lecture on phenotypes and functions of SARS-CoV-2-specific memory T cells after recovery from COVID-19. I will also discuss the presence of SARS-CoV-2-reactive T cells in unexposed individuals and SARS-CoV-2-specific T cell responses elicited by COVID-19 vaccination.

지난 7월 14일 오후 8시, 카오스 사이언스의 유튜브 채널을 통해 천진우 단장의 기초과학 석학강연이 진행되었다. '코로나에서 뇌과학까지'라는 주제로 진행된 이번 강연을 통해, 인...

Understanding disease mechanisms and developing new therapeutic strategies requires holistic measurement of diverse anatomical and molecular traits that span multiple levels, from cells to an entire system. In this talk, I will discuss new technologies for studying organ-scale biological systems and how we can accelerate the technology adoption to maximize the impact.

기초과학연구원(IBS)은 카오스재단과 과학 대중화를 위한 업무협약(MOU)을 체결했다. 양 기관의 협업은 오는 7월 ‘기초과학 석학 강연’ 온라인 개최를 통해 첫 단추를 꿴다. 7월 14일에는 천진우 IBS 나노의학 연구단장이 ‘코로나에서 뇌과학까지’를 주제로 강연을 펼친다. 강연은 카오스재단 유튜브 채널에서 언택트로 시청할 수 있다.

Wearable biosensors represent a promising opportunity to continuously and non-invasively track human physiology through dynamic measurements of chemical markers in bio-fluids such as sweat, tears, saliva and interstitial fluid. Such biosensing platforms can thus offer real-time biochemical information toward a more comprehensive view of a wearer’s health, performance or stress at the molecular level. The growing recent interest in wearable and mobile technologies has led to increased research efforts toward development of non-invasive biomarker monitoring platforms. Continuous biomonitoring addresses the limitations of finger-stick blood testing and provides the opportunity for optimal therapeutic interventions. The research during PhD is focused on developing wearable sensors and biosensors along with non-invasive biosensing opportunities and the potential impact of such wearable devices on our daily life....

Mechanosensory feedback from the digestive tract to the brain is critical for limiting excessive food and water intake, but the underlying gut–brain communication pathways and mechanisms remain poorly understood. Here we show that, in mice, neurons in the parabrachial nucleus that express the prodynorphin gene (hereafter, PBPdyn neurons) monitor the intake of both fluids and solids, using mechanosensory signals that arise from the upper digestive tract. Most individual PBPdyn neurons are activated by ingestion as well as the stimulation of the mouth and stomach, which indicates the representation of integrated sensory signals across distinct parts of the digestive tract. PBPdyn neurons are anatomically connected to the digestive periphery via cranial and spinal pathways; we show that, among these pathways, the vagus nerve conveys stomach-distension signals to PBPdyn neurons....