Publications by authors named "Dae S Lee"

The objective of this study was to evaluate the effects of dietary mangosteen peel preparations, either powdered (MspP) or ethanolic extract (MspE), on the growth performance, meat quality, immune response, gut health, serum biochemical profiles, and antioxidant activity of broiler chicks. A total of 480 day-old straight-run broiler chicks (Ross 308) were randomly placed into four treatments, with eight replicates of 12 chicks each, and subjected to one of the four experimental diets for 21 days. The corn and soybean meal-based diet was supplemented with 2% MspP (20 g per kg of diet) or 0.

View Article and Find Full Text PDF

The novel strain CBA3628 was isolated from kimchi, a Korean fermented vegetable. CBA3628 is a cocci-shaped, Gram-stain-positive, catalase- and oxidase-negative and facultatively anaerobic bacterium. The results of phylogenetic analysis based on 16S rRNA gene sequencing indicated that CBA3628 represented a member of the genus of the family .

View Article and Find Full Text PDF

Background: We evaluated the prognosis of traumatic out-of-hospital cardiac arrest (OHCA) by assessing the presence of hepatic portal vein gas (HPVG) observed in ultrasound (US) or point-of-care ultrasonography (POCUS) performed during CPR. Furthermore, we aimed to understand the role of HPVG in decision-making regarding CPR discontinuation or withholding in traumatic OHCA.

Methods: The retrospective study was conducted at the level 1 trauma center of urban academic medical centers in South Korea.

View Article and Find Full Text PDF
Article Synopsis
  • A new Gram-stain-negative and yellow-pigmented bacterium, strain GPA1, was discovered in a plastic waste landfill in South Korea, characterized as a non-motile short rod that grows well at temperatures of 15-40°C, with an optimum at 30°C, and prefers pH levels of 7.0-8.0.
  • The bacterium contains menaquinone-7 as its sole respiratory quinone and features specific fatty acids and polar lipids, indicating unique biochemical properties.
  • Phylogenetic analysis reveals strain GPA1 as a distinct species within its genus, showing a very high similarity to related strains but notable differences in genetic identity, leading to the proposal of a novel species
View Article and Find Full Text PDF

A lithium titanate-decorated TiCT MXene (LTO-MX) composite was synthesized through etching and alkali processes, and subsequently immobilized using polyacrylonitrile (PAN) polymer via a phase inversion method. In the batch study, the strontium adsorption behavior followed the Redlich-Peterson isotherm and the pseudo-second-order kinetic models. The maximum adsorption capacity for strontium reached 24.

View Article and Find Full Text PDF

Radioactive wastes contain organic complexing agents that can form complexes with radionuclides and enhance the solubility of these radionuclides, increasing the mobility of radionuclides over great distances from a radioactive waste repository. In this study, four radionuclides (cobalt, strontium, iodine, and uranium) and three organic complexing agents (ethylenediaminetetraacetic acid, nitrilotriacetic acid, and iso-saccharic acid) were selected, and the solubility of these radionuclides was assessed under realistic environmental conditions such as different pHs (7, 9, 11, and 13), temperatures (10 °C, 20 °C, and 40 °C), and organic complexing agent concentrations (10-10 M). A total of 720 datasets were generated from solubility batch experiments.

View Article and Find Full Text PDF

2D-TiCT MXene nanosheets intercalated with sodium ions (SI-TiCT) were synthesized and utilized in simultaneous adsorption and electrochemical regeneration with ciprofloxacin (CPX). The primary focus of this study is to investigate the long-term stability of SI-Ti3C2Tx MXene and to propose the underlying regeneration mechanisms. The successful synthesis of TiAlC, TiCT MXene, and SI-TiCT MXene was confirmed using X-ray diffraction, X-ray photoelectron spectroscopy, and Raman spectroscopy.

View Article and Find Full Text PDF
Article Synopsis
  • Sodium alginate (SA)-based composites with TiCT MXene (MX) and MIL-101(Fe) were developed to effectively remove naproxen (NPX) through adsorption and electrochemical regeneration techniques.
  • The MX@SA composite showed superior NPX adsorption capabilities compared to both MIL-101(Fe)@SA and MX/MIL-101(Fe)@SA composites, due to more interaction pathways.
  • Optimal electrochemical regeneration parameters were established, with MX@SA achieving better results (169.3 C g, 10 mA cm) than the other composites (16.7 C g, 5 mA cm), involving different regeneration mechanisms through indirect oxidation processes.
View Article and Find Full Text PDF

Mushroom poisoning is increasing worldwide, as well as the incidence of fatal mushroom poisoning. Several new syndromes associated with mushroom poisoning have been described in the literature. Notably, 1 of the newly identified mushroom poisonings is Russula subnigricans poisoning.

View Article and Find Full Text PDF
Article Synopsis
  • PFOA, a toxic chemical resistant to degradation, contaminates various habitats, necessitating advanced and costly methods for its breakdown.
  • This study explored a dual biocatalyzed microbial electrosynthesis (MES) system, achieving a 91% PFOA biodegradation rate in 120 hours across different concentrations.
  • Results indicated changes in microbial communities, with resilient species flourishing, suggesting that this MES approach is a promising, eco-friendly method for PFOA remediation and bioremediation research.
View Article and Find Full Text PDF

Objective: Serous tubal intraepithelial carcinoma (STIC) is a known precursor of high-grade serous ovarian cancer (HGSOC). This study aimed to evaluate the proportion of STIC in patients with HGSOC and analyze the STIC-related prognosis in patients with HGSOC.

Materials And Methods: All pathology reports at our institution that included bilateral salpingectomies of patients with HGSOC from January 2013 to December 2018 were reviewed by two experienced pathologists.

View Article and Find Full Text PDF

Most bio-electrochemical systems (BESs) use biotic/abiotic electrode combinations, with platinum-based abiotic electrodes being the most common. However, the non-renewability, cost, and poisonous nature of such electrode systems based on noble metals are major bottlenecks in BES commercialisation. Microbial electrosynthesis (MES), which is a sustainable energy platform that simultaneously treats wastewater and produces chemical commodities, also faces the same problem.

View Article and Find Full Text PDF

Objectives: Lymphocyte-activation gene 3 (LAG-3) represents a potential immune checkpoint target for cancer treatment. We investigated LAG-3 expression and its prognostic value in patients with surgically treated clear cell renal cell carcinoma (RCC) and correlated LAG-3 expression with programmed cell death ligand 1(PD-L1).

Methods: We evaluated LAG-3 and PD-L1 expression using immunohistochemistry on tissue microarrays incorporating 134 primary excision specimens of clear cell RCC (ccRCC).

View Article and Find Full Text PDF

Background: During manual chest compression, maintaining accurate compression depth and consistency is a challenge. Therefore, mechanical chest compression devices(mCCDs) have been increasingly incorporated in clinical practice. Evaluation and comparison of the efficacy of these devices is critical for extensive clinical application.

View Article and Find Full Text PDF
Article Synopsis
  • - Amorphous sodium titanates were synthesized using a mid-temperature sol-gel method and were tested as selective adsorbents for strontium in solutions containing cesium and metal cations like Al, Mg, Ca, and Mn.
  • - The sodium titanate exhibited a maximum strontium adsorption capacity of 193.93 mg/g, effectively removing 99.9% of strontium and 40.67% of cesium from selected aqueous solutions.
  • - Strontium adsorption occurred rapidly, following pseudo-second-order kinetics and a generalized Langmuir isotherm model, achieving equilibrium within 1 hour and resulting in the formation of a strontium titanate structure.
View Article and Find Full Text PDF

Two-dimensional (2D) TiCT transition metal carbide (MXene) nanosheets intercalated with sodium ions (SI-TiCT MXene) were used in the adsorption and electrochemical regeneration process for removal of the antidiabetic drug metformin (MF) as a model emerging pollutant. After MF adsorption, SI-TiCT MXene oxidized the MF on its surface through its electrocatalytic activity at very low current density and cell potential. For complete oxidation the optimum parameters were 0.

View Article and Find Full Text PDF

Buckwheat hull-derived biochar (BHBC) beads were synthesized by immobilizing biochar powder with alginate. Due to their cation-exchange ability, abundant functional groups, microporous structure, and large surface area, BHBC beads were successfully applied for the removal of cobalt from aqueous solution. The adsorption behavior followed pseudo-second-order kinetics and the Langmuir isotherm model showed a better fit to adsorption data than the Freundlich or Temkin isotherm models.

View Article and Find Full Text PDF

Microbial electrosynthesis (MES) is a renewable energy platform capable of reducing the carbon footprint by converting carbon dioxide/bicarbonate to useful chemical commodities. However, the development of feasible electrode structures, inefficient current densities, and the production of unfavorable electrosynthesis products remain a major challenge. To this end, a three-dimensional (3D) macroporous sponge coated with a carbon nanotube/MXene composite (CNT-MXene@Sponge) was evaluated as an MES cathode.

View Article and Find Full Text PDF

Advanced functional materials for photocatalytic hydrogen (H) generation using abundant solar energy are the core of new and renewable energy research. In this paper, we report the in-situ deposition of platinum quantum-sized particles (Pt QDs) on bismuth oxybromide (BBr) 3D marigold flowers with exposed (101)/(110) facets (i.e.

View Article and Find Full Text PDF

Two-dimensional (2D) transition metal carbides and nitrides (MXenes) have drawn considerable attention for application in the field of environmental remediation. In this study, we report the simultaneous reductive-adsorption behavior of TiCNT for toxic metal ion Hg ion in the aqueous phase. 2D TiCNT and TiCT MXene nanosheets were synthesized by exfoliation of TiAlCN and TiAlC MAX phases, respectively.

View Article and Find Full Text PDF

Bismuth oxyiodide/magnetite (BiOI/FeO) nanocomposites were synthesized by a hydrothermal reaction. The synthesized BiOI/FeO was used to remove bisphenol A (BPA) from an aqueous solution under simulated solar light. The molar ratio of Bi to Fe in BiOI/FeO significantly affected BPA degradation, with the optimal BiOI/FeO (2:1) ratio in the composites.

View Article and Find Full Text PDF

Fe-based amorphous alloys have been found to be very efficient in the degradation of water pollutants due to their unique atomic arrangements with long-range disordered structure. In this work, Fe-B-C-Ti amorphous ribbons were successfully synthesized and showed high catalytic efficiency in the degradation of methylene blue (MB) under simulated sunlight and across a wide pH range. The catalytic efficiency was evaluated under different conditions to optimize the degradation performance.

View Article and Find Full Text PDF

The effects of utilizing goethite (5%, 10%, and 20%) in co-pyrolysis with low-lignin macroalgae, Saccharina japonica, on the carbon sequestration potential, magnetic, physicochemical, and dye (basic blue 41, BB41) removal properties of the resulting biochar were investigated. Biochars exhibited more aromaticity, better magnetic properties, and insignificant alterations to their point of zero charges (11.07 ± 0.

View Article and Find Full Text PDF

Background: The aim of the study is to investigate the coagulation status in trauma patients using thromboelastography and their association with survival and blood transfusion.

Methods: We included 452 trauma patients who visited the trauma center of Uijeongbu St. Mary's Hospital.

View Article and Find Full Text PDF

Microbial electrosynthesis (MES) holds tremendous large scale energy storage potential. By promoting the bioconversion of carbon dioxide (bicarbonate) into useful chemical commodities, this technique utilizes renewable energy and reduces carbon footprint. However, expensive electrode materials, low current densities, and multiple electrosynthesis products are major challenges to this field.

View Article and Find Full Text PDF