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  • Fully compostable soft robot system for zero-waste soft electronics 배너 이미지

    Fully compostable soft robot system for zero-waste soft electronics

    A fully compostable soft robotic system designed for zero-waste soft electronics. The platform integrates durable soft actuators with multifunctional biodegradable electronic components, including tactile, strain, temperature, humidity, and pH sensors, enabling adaptive motion, real-time sensing, and intelligent environmental interaction. Despite its high level of functional integration and mechanical robustness, the entire system undergoes complete decomposition under composting conditions after use, minimizing electronic waste and supporting environmentally sustainable material cycling for next-generation robotic technologies. (K.-S. Kim et al., Nature Sustainability, 1-14, 2026)

  • Biodegradable Sensors for the Brain: Intracranial Pressure Monitor for Traumatic Brain Injury 배너 이미지

    Biodegradable Sensors for the Brain: Intracranial Pressure Monitor for Traumatic Brain Injury

    Newly developed brain sensors have the capability to biodegrade: that is, all the sensor materials dissolves away in cerebrospinal fluid over a controlled time period. Secondary surgery to remove implants becomes unnecessary and a nidus of infection, bleeding, and surgical risk is removed. The sensors’ wireless operation provides a fully implantable brain monitor in real time, eliminating the need for hospital visits for for additional treatment. The pressure sensors have 3D microelectromechanical systems (MEMS) structure exploiting piezoresistivity of Si nanomembranes, flexibility of biodegradable polymer (PLGA), and nano-porous or Mg foil structural materials.

  • Fully Implantable, Wireless Monitoring System with Near-Field Communication (NFC) 배너 이미지

    Fully Implantable, Wireless Monitoring System with Near-Field Communication (NFC)

    This wireless monitor provides a critically important feature in mobile and real-time monitoring. Here the CPU embedded chip-scale wireless system offers high-speed, digitalized communication with wireless energy and information transfer through near-field electromagnetic coupling of biodegradable metal inductor coils. The miniaturized system is smaller than a dime (U.S. 10-cent coin) and can be implanted in the brain cavity. Various sensor modalities can be integrated with the current NFC system for other types of application such as temperature, pressure, flow rates, pH and glucose sensing and the like.

  • Biodegradable and Self-deployable Electronic Tent : Minimally Invasive Brain Interfaces 배너 이미지

    Biodegradable and Self-deployable Electronic Tent : Minimally Invasive Brain Interfaces

    A biodegradable, self-deployable electronic tent automatically sets up in various environments, offering minimal invasiveness in limited spaces without manual intervention. It integrates functional devices (ECoG, temperature, strain, and pH sensors) made from thin biodegradable inorganic materials (Si nanomembranes, SiO2, Mg, Mo) for flexibility and high electrical performance. This material integration allows seamless deployment and operation. Equipped with embedded sensors and wireless communication, the tent provides real-time monitoring and data collection for various applications. After use, the tent dissolves in the body over a controlled lifetime, reducing the need for secondary removal surgery and associated risks.

  • Biodegradable, Inorganic Platform for High-Performance RF Components 배너 이미지

    Biodegradable, Inorganic Platform for High-Performance RF Components

    Inorganic biomaterials provide robust mechanical characteristics and high performance in electronic operation. A clear understanding of the dissolution products and their biocompatibility demonstrates their usability in biomedical devices with degradable features. Studies have demonstrated that we can generate all necessary electronic components − from resistors, diodes, transistors, and capacitors to inductors − with fully biodegradable metal and Si-based semiconductors less than a few micrometer thick, so that all materials can be dissolved away in the body in a few months. Integrating all components lets us provide more complex and advanced electronic circuits for delicate biomedical sensing and treatment.

  • Photo-degradable Soft Robots using Silicone Elastomeric Composite 배너 이미지

    Photo-degradable Soft Robots using Silicone Elastomeric Composite

    Soft robots with high elasticity and the ability to degrade under ultraviolet (UV) light offer exciting potential for a variety of applications, particularly in military operations. These robots are designed for discreet operations and surveillance, providing a versatile solution for temporary missions. After completing their tasks, the robots can self-dispose in an environmentally friendly manner, significantly reducing their environmental impact. This biodegradability also enhances their use in hazardous areas, where retrieval of traditional hardware may be impractical or risky. Additionally, the robots contribute to hardware security by ensuring that sensitive materials do not remain exposed after their mission is finished.

Notices & News

  • Our lab's research was promoted on Youtube channel of MSE, SNU

    https://www.youtube.com/watch?v=iL0vc26Rm5E

    (2025-05) 배너 이미지

  • (2024-12) Our lab's research was covered by SNU College of Engineering and Edu-Donga

    (2024-12) 배너 이미지

  • (2024-08) Our lab's research was covered by SNU College of Engineering and Chosun-Ilbo

    (2024-08) 배너 이미지

  • (2024-08) Our lab's research was published in 'Natrue Electronics'.
    (https://www.nature.com/articles/s41928-024-01216-x)

    (2024-08) 배너 이미지

  • (2024-04) Yoon-Nam won a best poster award at ROBOSOFT

    (2024-04) 배너 이미지

  • (2024-03) Jae-Young won a poster award at GRC

    (2024-03) 배너 이미지

Welcome to Multi-Dimensional Materials Laboratory

Our philosophy...

We explore real solutions for society issues including bio-healthcare, environment, safety and reliability problems through understanding, exploiting and sharing multidisciplinary science and engineering in materials science, chemistry, mechanics, electronics, bioengineering, biology and other emerging engineering. We develop and apply multi-dimension electronic materials to provide the bio and environmentally friendly devices for early diagnosis of safety issue in daily life to contribute toward these ultimate goals.

Our vision...

We live in 4D spaces (3D Geometry with Time Space)! We can manipulate the wide range of properties of materials by controlling the materials dimension and its time dependent characteristic. We are seeking the materials design to customize the materials dimension, geometry, morphology and structure from 0D to 4D and tune the degradation, transformation, transition, and sustainability. All aspect of experience in materials design, fabrication and prototype demonstration reveal the leadership in convergent research era.

Our research...

We in the Multi-Dimensional Materials (MDM) Lab focus on materials development for Bio, Environment, and Safety Technologies (BEST) including 1. Biodegradable and minimum-invasive implants offering quick, safe medical treatment at complex levels of surgical care, and reducing the need for surgery, 2. Environmental friendly and waste-free green electronic providing efficient energy harvesting system and bio/eco-compatible resources with zero waste stream, 3. Safety and reliability of devices and structure suggesting convergent prediction and monitoring method to preventing the industrial accident.

연구실과 함께 하고 싶은 학생들은 인턴 지원을 위해 메일로 문의 바랍니다.

Current research interested in

01Biodegradable, minimally invasive implants

02Eco-friendly / waste-free electronics

03Device, structure safety and reliability