A5100386829- Micro and Nano Robotics
- Photorefractive and Nonlinear Optics
- Phase-change materials and chalcogenides
- Molecular Communication and Nanonetworks
- Advanced Radiotherapy Techniques
- Radiation Detection and Scintillator Technologies
- Modular Robots and Swarm Intelligence
- Photonic and Optical Devices
- Soft Robotics and Applications
- Astronomy and Astrophysical Research
- Stellar, planetary, and galactic studies
- Optical Network Technologies
- Medical Imaging Techniques and Applications
- Innovative Microfluidic and Catalytic Techniques Innovation
- Color Science and Applications
- Advanced Sensor and Energy Harvesting Materials
- Astrophysics and Star Formation Studies
- 3D Printing in Biomedical Research
- GaN-based semiconductor devices and materials
- Intracranial Aneurysms: Treatment and Complications
- Cerebrospinal fluid and hydrocephalus
- Model Reduction and Neural Networks
- Neuroscience and Neural Engineering
- Characterization and Applications of Magnetic Nanoparticles
- Photoacoustic and Ultrasonic Imaging
Daegu Gyeongbuk Institute of Science and Technology
2017-2025
Government of the Republic of Korea
2024
Chung-Ang University
2022-2023
Chungbuk National University
2022
Dongnam Institute of Radiological & Medical Sciences
2020
Pennsylvania State University
2017
Soongsil University
2010-2016
Inje University Haeundae Paik Hospital
2015-2016
Hanyang University
2016
Inje University
2005-2013
Magnetic microrobots developed for 3D culture and precise delivery of cells were successfully controlled in various environments.
Magnetically actuated soft robots may improve the treatment of disseminated intravascular coagulation. Significant progress has been made in development robotic systems that steer catheters. A more challenging task, however, is sub-millimeter-diameter guidewires during treatments; a novel microrobotic approach required for steering. In this article, we develop novel, magnetically actuated, system, increasing steerability conventional guidewire. The microrobot attached to tip guidewire, and...
Abstract Microrobots facilitate targeted therapy due to their small size, minimal invasiveness, and precise wireless control. A degradable hyperthermia microrobot (DHM) with a 3D helical structure is developed, enabling actively controlled drug delivery, release, therapy. The made of poly(ethylene glycol) diacrylate (PEGDA) pentaerythritol triacrylate (PETA) contains magnetic Fe 3 O 4 nanoparticles (MNPs) 5‐fluorouracil (5‐FU). Its locomotion remotely precisely by rotating field (RMF)...
Abstract A capsule‐type microrobot exhibits “pick‐and‐drop” (P&D) motion to hold a particle within confined volume and transports it via corkscrewing motion. The P&D is possible because the has two parts: plunger cap. fabricated microrobots are wirelessly controlled by magnetic manipulator. Drugs or cells can be encapsulated in container of attached surface cap, which used as supporting structure. Therefore, deliver suspended adherent cells. drug minimally exposed not completely...
Abstract Biocompatibility and high responsiveness to magnetic fields are fundamental requisites translate small‐scale robots into clinical applications. The element iron exhibits the highest saturation magnetization susceptibility while exhibiting excellent biocompatibility characteristics. Here, a process reliably fabricate microrobots by means of template‐assisted electrodeposition in 3D‐printed micromolds is presented. 3D molds fabricated using modified two‐photon absorption...
There has been a great deal of interest in the development technologies for actively manipulating neural networks vitro, providing natural but simplified environments highly reproducible manner which to study brain function and related diseases. Platforms these vitro require precise selective connections at target location, with minimal external influences, measurement activity determine how neurons communicate. Here, we report neuron-loaded microrobot connection via delivery gap between two...
Exosomes are a type of extracellular vesicles containing mRNA, miRNA, and proteins origin cells, which can control the characteristics other cells or surroundings. Despite increasing evidence on oncogenic properties tumor-derived exosomes, fibrosarcoma-derived exosomes remain largely unrevealed. While proper extraction characterization is critical in research, there various limitations techniques to measure size homogeneity exosomes. Here, we analyzed from fibrosarcoma cell line WEHI-164...
Intravascular microrobots have emerged as a promising tool for vascular diseases. They can be wirelessly and precisely manipulated with high degree of freedom. Previous studies evaluated their drilling performance locomotion, showed the feasibility using biomedical applications in two-dimensional space. However, it is critical to validate micro-drillers three-dimensional (3D) environment because gravity plays an important role 3D significantly affects networks. In this work, we fabricated...
Abstract Targeted stem cell delivery with microrobots has emerged as a potential alternative therapeutic strategy in regenerative medicine, and intranasal administration is an effective approach for minimally invasive of agents into the brain. In this study, magnetically powered cell‐based microrobot (“Cellbot”) used targeted to brain through passage. The Cellbot developed by internalizing superparamagnetic iron oxide nanoparticles (SPIONs) human nasal turbinate cells. SPIONs have no...
Abstract The DAMA/LIBRA collaboration has reported the observation of an annual modulation in event rate that been attributed to dark matter interactions over last two decades. However, even though tremendous efforts detect similar were pursued, no definitive evidence observed corroborate signal. Many studies assuming various models have attempted reconcile DAMA/LIBRA’s signals and null results from other experiments, however clear conclusion can be drawn. Apart hypothesis, several examined...
We introduce error correcting 4/6 modulation codes for holographic data storage. Above all, the merit of proposed is that their trellis structure allows capability. The also do not have any fatal (i.e., isolated pixels) two-dimensional intersymbol interference (2D ISI) patterns. decoding scheme uses Viterbi algorithm. As a result, better performance than conventional 6/8 and overall.
Abstract Targeted stem cell delivery utilizing a magnetic actuation system is an emerging technology in engineering that efficiently targets cells specific areas vitro. However, integrating precise control systems with selective neural differentiation has not yet been widely considered for building successful networks. Challenges arise creating targeted functional neuronal networks, largely due to difficulties simultaneously controlling the positions of and selectively stimulating their...
Magnetically driven microrobots have been widely studied for various biomedical applications in the past decade. An important application of these is heart disease treatment. In intravascular treatments, a particular challenge submillimeter-sized guidewire steering; this requires new microrobotic approach. study, flexible microrobot was fabricated by replica molding method, which consists three parts: (1) polydimethylsiloxane (PDMS) body, (2) two permanent magnets, and (3) micro-spring...
A magnetoelectric biorobot enables precise cell transportation and delivery to multiple target areas via magnetically assisted stamping allows for wireless electrostimulation differentiation of cells after their deployment.
Superparamagnetic iron oxide nanoparticles (SPIONs) have been widely employed in biomedical fields, including targeted delivery of antitumor therapy. Conventional magnetic tumor targeting has used simple static fields (SMFs), which cause SPIONs to linearly aggregate into a long chain-like shape. Such agglomeration greatly hinders the intracellular tumors, thus reducing therapeutic efficacy. In this study, we investigated enhancement uptake through application rotating (RMFs). Based on...
This paper proposes a 4D printed smart soft carrier with hemispherical hollow and openable lid. The is composed of lid slot (with shape 4 legs), border, hemisphere. fabricated by printing using hydrogels. Specifically, the lid, hemisphere are thermo-responsive poly(N-isopropylacrylamide) (PNIPAM) hydrogel, non-responsive polyethylene glycol (PEG) hydrogel superparamagnetic iron oxide nanoparticles (SPIONs), PEG respectively. Since SPIONs included in center opened closed according to...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Mechanism of the Reaction Mercuric Iodide with Bis-organomercury CompoundsRaymond E. Dessy, Y. K. Lee, and Jin-Young KimCite this: J. Am. Chem. Soc. 1961, 83, 5, 1163–1167Publication Date (Print):March 1, 1961Publication History Published online1 May 2002Published inissue 1 March 1961https://pubs.acs.org/doi/10.1021/ja01466a038https://doi.org/10.1021/ja01466a038research-articleACS PublicationsRequest reuse permissionsArticle...
Abstract Hyperthermia therapy eliminates cancer cells by heating them above physiological temperatures. Superparamagnetic iron oxide nanoparticles (SPIONs) are promising for targeted hyperthermia because of their excellent efficiency, biocompatibility, and active magnetic navigation. When exposed to a high‐frequency alternating field (AMF), SPIONs dissipate heat damage cells. Accurate temperature control is crucial safe efficient therapy. A closed‐loop controller the rate adjusting AMF’s...