A5036186277- Advanced Sensor and Energy Harvesting Materials
- Polymer Surface Interaction Studies
- Electrospun Nanofibers in Biomedical Applications
- Conducting polymers and applications
- 3D Printing in Biomedical Research
- Graphene and Nanomaterials Applications
- Surface Modification and Superhydrophobicity
- Bone Tissue Engineering Materials
- Silk-based biomaterials and applications
- Microplastics and Plastic Pollution
- biodegradable polymer synthesis and properties
- Nanofabrication and Lithography Techniques
- Tissue Engineering and Regenerative Medicine
- Dendrimers and Hyperbranched Polymers
- Nanoplatforms for cancer theranostics
- Innovative Energy Harvesting Technologies
- Membrane Separation and Gas Transport
- Graphene research and applications
- Supercapacitor Materials and Fabrication
- Nanoparticle-Based Drug Delivery
- Dental materials and restorations
- Hydrogels: synthesis, properties, applications
- Membrane Separation Technologies
- Agriculture Sustainability and Environmental Impact
- Corneal Surgery and Treatments
Yonsei University
2018-2025
Government of the Republic of Korea
2016-2019
Chung-Ang University
2010-2018
Seoul Institute
2018
University of Seoul
2015
Kyung Hee University
2012
Seoul National University
2008-2011
Samsung (South Korea)
2000
Abstract Environmental pollution arising from plastic waste is a major global concern. Plastic macroparticles, microparticles, and nanoparticles have the potential to affect marine ecosystems human health. It generally accepted that microplastic particles are not harmful or at best minimal However direct contact with may possible adverse effect in cellular level. Primary polystyrene (PS) were focus of this study, we investigated impacts these microplastics on health We determined PS immune...
Abstract Research on cultured meat has primarily focused the mass proliferation or differentiation of muscle cells; thus, food characteristics remain relatively underexplored. As quality is determined by its organoleptic properties, with similar sensory to animal-derived highly desirable. In this study, we control and nutritional properties tailoring 2D primary bovine myoblasts adipose-derived mesenchymal stem cells gelatin/alginate scaffolds varying stiffness. We assess effect adipose meat....
Abstract Over the past decade, much progress has been made in application of multifunctional membranes with special wettability for separation oil–water mixtures. This driven by frequent oil spill accidents and oily wastewater, which are enormous threats to vulnerable aquatic environment. The design permeable superwettable inspired development highly wetting/nonwetting interfaces, but these susceptible factors such as mechanical forces, chemical corrosion, biological fouling, other...
A superhydrophobic carbon nanofiber network inlay-gated mesh with high durability and separation performance was developed for oil–water emulsion separation.
Abstract Triboelectric nanogenerators (TENGs) can convert a mechanical energy input to an electric output through Maxwell's displacement current. By increasing the electrical and overcoming limitations of TENGs, such devices be used as auxiliary power source for portable electronics. Nevertheless, generation mechanism structure must optimized compensate TENGs. This paper reports on nonpolar liquid lubricant submerged TENG (LLS‐TENG), which overcome existing TENG. When is filled in LLS‐TENG,...
Edible scaffolds are needed in cultured meat to mimic meat's three-dimensional structure by organizing cells and replenishing the insufficient mass of alone. However, there is still a large gap between slaughtered developed into tissues using scaffolds. This mainly due difference size, texture, flavor, taste. In this study, we develop coating matrix modify surface textured vegetable protein (TVP), cell support, produce having essential characteristics. We optimized fish gelatin/agar matrix's...
Currently, wind energy harvesting is in the limelight. However, with existing electromagnetic generators, it difficult to harvest multifariously-wasted breezes. To from winds at a wide range of speeds, wind-driven triboelectric nanogenerators (TENGs) are studied. critical limitation general TENGs that their power output low. Therefore, an innovative strategy necessary generate high even breeze. Herein, approach test charge-polarization-based flutter-driven TENG (CPF-TENG) ambient air...
Abstract For triboelectric nanogenerators (TENGs), achieving both high root‐mean‐square (RMS) current output and portability remains a challenge. Here, charge‐accumulating‐flutter‐based nanogenerator (CAF‐TENG) with ultrahigh RMS average power density/portability is proposed. Because of the electron accumulation/discharge mechanism electrical/mechanical flutter device design, CAF‐TENG can generate an voltage, current, density 44 V, 36 mA, 26 mW cm −3 , respectively. The optimized via...
DNA-templated metallization has emerged as an efficient strategy for creating nanoscale-metal DNA hybrid structures with a desirable conformation and function. Despite the potential of DNA–metal hybrids, their use combinatory therapeutic agents rarely been examined. Herein, we present simple approach fabricating multipurpose superstructure that serves photoimmunotherapy agent. Specifically, adsorb locally concentrate Au ions onto superstructures through induced local reduction, resulting in...
Water-based electrolytes provide safe, reliable, and cost-effective energy storage solutions; however, their application in aqueous lithium-ion batteries is hindered by low density short cycling life due to the limited electrochemical stability window. While high lithium salt concentrations can mitigate some of these issues, they often lead increased solvent viscosity higher costs, limiting commercialization. In this study, a boron-stabilized anisotropic polyvinyl alcohol (PVA) hydrogel...
For cultured meat to effectively replace traditional meat, it is essential develop scaffolds that replicate key attributes of real such as taste, nutrition, flavor, and texture. However, one the significant challenges in replicating characteristics with lies considerable gap between stiffness preferred by cells textural properties desired humans. To address this issue, we focused on microscale environment conducive cell growth macro-scale favored This led development adaptive...
The development of bioplastics is advancing globally to promote a sustainable society. In this study, we designed cellulosic dual-network address the need for materials with balanced mechanical properties and biodegradability. Cellulose was used as first network, second network functionalized enhance strength while preserving dynamic covalent moieties within were generated through dithiolane ring-opening polymerization. ultimate tensile flexural elongation controlled 8.8-193 MPa 3.3-32.5%,...
Cell surface modification has been extensively studied to enhance the efficacy of cell therapy. Still, general accessibility and versatility are remaining challenges meet increasing demand for cell-based Herein, we present a facile universal method that involves mild reduction disulfide bonds in membrane protein thiol groups. The reduced cells successfully coated with biomolecules, polymers, nanoparticles an assortment applications, including rapid assembly, vivo monitoring, localized drug...
Abstract Ocular drug delivery is an interesting field in current research. Silica nanoparticles (SiNPs) are promising carriers for ophthalmic delivery. However, little known about the toxicity of SiNPs on ocular surface cells such as human corneal epithelial (HCECs). In this study, we evaluated cytotoxicity induced by 50, 100 and 150 nm sizes cultured HCECs up to 48 hours. were up-taken inside cytoplasmic vacuoles. Cellular reactive oxygen species generation was mildly elevated, dose...
Poly(ethylene glycol) (PEG) has attracted significant interest because of its superior antifouling properties, water solubility, and biocompatibility. However, the translation properties onto target surfaces been challenging limited functionality. Herein, PEG-based block copolyethers functionalized with catechol, a mussel-inspired, versatile moiety for coating surfaces, were evaluated within framework polyethers exclusively. A series catechol-functionalized diverse molecular weights catechol...
Plastic is produced, used, and accumulated exponentially. Humans can take it through the food chain, microplastics be potentially toxic to humans. In this study, we analyzed surface patterns of their effects on humans using polyvinyl chloride (PVC) acrylonitrile butadiene styrene (ABS). The analysis these will used as a standardized measurement method for microplastic detection an indicator impact environmental pollution caused by We have statistical analyze shape milled estimated local...
Abstract Transmission of pathogens via respiratory droplets can spread infections such as COVID‐19. Wearing a mask hinders the COVID‐19 infection and has become mandatory in some cases. Although most masks are affordable disposable, continual daily replacement is required due to their performance deterioration caused by washing contamination. Hence, urethane‐reactive coating material comprising perfluoro‐tert‐butanol‐hexamethylene diisocyanate developed with highly hydrophobic oleophobic...
Cultured meat is artificial produced via the mass culture of cells without slaughtering livestock. In production process cultured meat, proliferation for preparing abundant a strenuous and time-consuming procedure requiring expensive excess serum. Herein, C-phycocyanin (C-PC) extracted from blue algae was selected as substitute animal-derived serum polysaccharide film-based platform developed to effectively deliver C-PC myoblast while reducing cost cell medium. The has sophisticated...
Piezoelectric nanogenerators (PENGs) and triboelectric (TENGs) are representative technologies that can harvest mechanical energy. In general, piezoelectric/triboelectric hybrid generators considerable energy with a limited input; however, PENGs TENGs entail different requirements for harvesting Specifically, produce large output when strain is applied, require surface area to high power. Therefore, it necessary develop an innovative strategy in terms of the structural design satisfy both...