Publications by authors named "Jun-Woo Park"

Combination chemotherapy is a promising strategy for cancer treatment, enhancing antitumor efficacy while minimizing drug resistance and mitigating the risk of single-drug overdose toxicity. Polymeric drug delivery carriers for combination chemotherapy have been developed; however, the synthetic process of amphiphilic polymers is time-consuming and laborious. The polymer entanglement-based drug encapsulation has been limited in achieving a high multidrug encapsulation efficiency because of the intrinsic preference for encapsulation of drugs upon their polarity.

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HLA-DPA1*02:143 is identical to HLA-DPA1*02:02:02:01 except for a single nucleotide substitution in exon 1.

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Lithium-sulfur (Li-S) batteries represent a promising solution for achieving high energy densities exceeding 500 Wh kg, leveraging cathode materials with theoretical energy densities up to 2600 Wh kg. These batteries are also cost-effective, abundant, and environment-friendly. In this study, an innovative approach is proposed utilizing highly oxidized single-walled carbon nanotubes (Ox-SWCNTs) as a conductive fibrous scaffold and functional interlayer in sulfur cathodes and separators, respectively, to demonstrate large-area and ultra-flexible Li-S batteries with enhanced energy density.

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  • * The study explores acidic functionalization of CNTs to improve their dispersion and reduce polysulfide shuttling, enhancing electrode performance.
  • * The treated multiwalled CNTs showed impressive performance with 99% coulombic efficiency and a discharge capacity of 743 mAh g after 100 cycles, indicating a promising method for better Li-S battery performance.
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  • The study highlights the persistent issue of high interface resistance at the cathode-sulfide electrolyte interface in all-solid-state batteries, which complicates electrochemical stability contrary to initial expectations.
  • Researchers explored the unexpected reactions occurring at the interface of LiNiCoMnO and argyrodite sulfide solid electrolytes using simulations and electrochemical experiments, identifying factors like a passivating layer and lithium depletion as causes of high resistance.
  • The introduction of oxygen substitutions in the sulfide electrolyte was found to mitigate these side reactions, improving the chemo-mechanical stability of the all-solid-state battery and offering valuable insights for future interface design.
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HLA-DRB3*02:209 is identical to HLA-DRB3*02:02:01:01 except for a single nucleotide substitution in exon 4.

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A 22-year-old male patient presented to the clinic with severe pain in the preauricular area with an inability to completely occlude the jaw. Facial computed tomography and magnetic resonance imaging revealed a well-defined lesion that was tentatively diagnosed as a benign tumor or cystic mass. Surgical approach of a lesion in the condyle is delicate and problematic as many vulnerable anatomical structures are present.

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The propagation test of lithium-ion battery pack was conducted in an environment of air and insulating oil. The test results showed the difference in the phenomenon in which fire propagation to surrounding cells, when a cell composing a battery pack is thermal runaway in two environments. The temperature of the cells in the battery pack was measured during propagation test.

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Background/aims: : This study aimed to review the indications, methods, cooperation, complications, and outcomes of percutaneous endoscopic gastrostomy (PEG).

Methods: : Questionnaires were sent to 200 hospitals, of which 62 returned their questionnaires, with a response rate of approximately 30%. Descriptive statistics were calculated to analyze the responses to the questionnaires.

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Aqueous zinc-vanadium hybrid redox flow battery systems are an efficient strategy to address the problems of low voltage and high cost of conventional all-vanadium redox flow batteries. However, the low electrochemical activity of carbon-based electrodes toward a vanadium redox reaction limits the performance of redox flow batteries. In this study, polyhedral binary cerium titanium oxide (CeTiO, CTO) is synthesized using molten salt synthesis.

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Article Synopsis
  • HLA-DQA1*01:138 and HLA-DQA1*01:03 are very similar genetic variants, showing almost the same characteristics.
  • The only difference between them is one specific nucleotide change in a part of the gene known as exon 3.
  • This slight variation can have important implications for immune response and disease susceptibility.
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Delivering protein drugs through dry powder inhalation (DPI) remains a significant challenge. Liposomes offer a promising solution, providing protection for proteins from external environment and controlled release capabilities. Furthermore, the use of non-ionic surfactants plays a crucial role in protecting the activity of proteins because of how the surfactants positioning themselves at the liquid-gas interface during the spray-drying process.

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  • * A multi-functional separator made from biomass-derived activated carbon (BAC) and a ceramic layer was developed to improve LSB performance by reducing LiPS dissolution and enhancing lithium diffusion.
  • * Tests showed that LSB cells with the new separator achieved a discharge capacity of 1092.5 mA h g, surpassing conventional polyethylene separators, while also effectively preventing lithium dendrite formation during cycling, marking a step towards sustainable energy solutions.
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Innate immunity is a first line defence system in the body which is for sensing signals of danger such as pathogenic microbes or host-derived signals of cellular stress. Pattern recognition receptors (PRR's), which present in the cell memebrane, are suspect the infection through pathogen-associated molecular patterns (PAMP), and activate innate immunity with response to promote inflammation via inflammatory cells such as macrophages and neutrophils, and cytokines. Inflammasome are protein complexes which are part of innate immunity in inflammation to remove pathogens and repair damaged tissues.

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  • * These nanotubes possess a high aspect ratio and a large surface area filled with anatase crystallites, enhancing their structural characteristics.
  • * By combining two-step anodization with a rubber polymer binder, freestanding nanotubular layers were created, resulting in a hybrid membrane that performs well in Li-S batteries, achieving a capacity of 618 mA h/g after 100 cycles.
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Transcription factors (TFs) are transported from the cytoplasm to the nucleus and disappear from the nucleus after they regulate gene expression. Here, we discover an unconventional nuclear export of the TF, orthodenticle homeobox 2 (OTX2), in nuclear budding vesicles, which transport OTX2 to the lysosome. We further find that torsin1a (Tor1a) is responsible for scission of the inner nuclear vesicle, which captures OTX2 using the LINC complex.

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  • - The study evaluates the performance of sand stabilized with various binders, namely epoxy emulsion (EM), acrylic polymer aqueous solution (APAS), a mixture of EM-APAS, and an EM-APAS-lime combination, focusing on compressive strength, thermal conductivity, and durability.
  • - Results indicate that the EM-APAS-lime mixture excels in compressive strength (over three times that of cement) and thermal conductivity (0.9-1 W/m·K), while the EM-APAS mixture shows superior durability, with a slake durability index above 80%.
  • - The findings suggest that using EM-APAS-lime as a binder significantly outperforms cement in ground improvement applications,
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The widespread adoption of Li-ion batteries is currently limited by their unstable electrochemical performance and high flammability under mechanical deformation conditions and a relatively low energy density. Herein, high-energy-density lithium-sulfur (Li-S) batteries are developed for applications in next-generation flexible electronics and electric vehicles with long cruising distances. Freestanding high-S-loading carbon nanotubes cathodes are assembled with a phosphorus (P)-doped carbon interlayer coated on commercial separators.

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Efficient charge injection/extraction from/to contact electrodes is essential to realize organic electronic and optoelectronic devices with optimum characteristics for many applications. Herein, we studied a versatile reductive interlayer based on sodium borohydride (NaBH) to control the contact properties of the staggered organic field-effect transistors (OFETs) either by doping and/or by regulating the contribution of charge carriers. The versatile functionalities of the NaBH layer are mainly determined by the alignment of frontier molecular orbitals of donor-acceptor (D-A) type copolymer semiconductors and the work function of the contact electrode.

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  • Zn-MnO batteries, using mild-acid electrolytes, are emerging as safe and cost-effective alternatives to Li-ion batteries for energy storage systems, but issues with MnO electrochemistry limit performance.
  • The dissolution of Mn ions into the electrolyte causes irreversible capacity loss and promotes the unwanted formation of zinc hydroxyl sulfate (ZHS) during prolonged use.
  • A new cell structure that includes an acid-treated carbon supportive layer (aCSL) enhances the battery's performance by providing extra reaction sites, boosting charge transfer, and allowing the recycling of dissolved Mn ions, resulting in over 3000 cycles with minimal capacity loss.
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Unlike commercial lithium-ion batteries, the high cost and low ionic conductivity of solid electrolytes (SEs) continues to be a big hurdle in commercially available all-solid-state batteries (ASSBs). Rather than the conventional dry-process and high-energy ball milling processes, the productive solution synthesis of bulk-type SEs is the most crucial issue in the successful application of high-energy-density ASSBs. In this study, the way is paved to overcome the hurdle for commercial lithium phosphorus sulfide chloride (LPSCl) SEs via a readily processable bulk-type solution-based synthesis without acquiring any high-energy ball-milling processes.

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Lithium-sulfur batteries are considered as attractive candidates for next-generation energy storage systems originating from their high theoretical capacity and energy density. However, the severe shuttling of behavior caused by the dissolution of lithium polysulfide intermediates during cycling remains a challenge for practical applications. Herein, porous carbon materials co-doped with nitrogen and sulfur atoms were prepared through a facile hydrothermal reaction of graphene oxide and methylene blue to obtain a suitable host structure for regulating the lithium polysulfide shuttling behavior.

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Vertically aligned Fe, S, and Fe-S doped anatase TiO nanotube arrays are prepared by an electrochemical anodization process using an organic electrolyte in which lactic acid is added as an additive. In the electrolyte, highly ordered TiO nanotube layers with greater thickness of 12 μm, inner diameter of approx. 90 nm and outer diameter of approx.

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With the timely advent of the electric vehicle era, where battery stability has emerged as a major issue, all-solid-state batteries (ASSBs) have attracted significant attention as the game changer owing to their high stability. However, despite the introduction of a densely packed solid electrolyte (SE) layer, when Li is used to increase the energy density of the cell, the short-circuit problem caused by Li protrusion is unavoidable. Furthermore, most strategies to control nonuniform Li growth are so complicated that they hinder the practical application of ASSBs.

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To assess the impact of nanoplastics (NP) and coagulation-based purified NP (PurNP), this study analyzed for alterations in the biodistribution, toxicity and inflammatory response in ICR mice exposed to three different doses of NP (5, 25, and 50 mg/kg) and PurNP for 2 weeks. Except water consumption, which was dose-dependently and significantly increased in all NP-treated groups, most factors assessed for feeding behaviors and excretions remained constant, without any significant change. Orally administered NP was detected in the intestine, kidneys, and liver at all concentrations, although the accumulation was higher in the intestine than in the kidneys and liver.

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