Ultrasmall-scale semiconductor devices (≤5 nm) are advancing technologies, such as artificial intelligence and the Internet of Things. However, the further scaling of these devices poses critical challenges, such as interface properties and oxide quality, particularly at the high-/semiconductor interface in metal-oxide-semiconductor (MOS) devices. Existing interlayer (IL) methods, typically exceeding 1 nm thickness, are unsuitable for ultrasmall-scale devices.
View Article and Find Full Text PDFBackground: Several Previous studies indicate that consuming krill oil may aid in reducing hypercholesterolemia and improving cholesterol metabolism. Therefore, our study was designed to investigate the effectiveness of Antarctic krill oil () (ESKO) in combating obesity and lowering fat/lipid/cholesterol levels.
Methods: The study aimed to investigate the molecular docking model targeting 3-hydroxy-3-methylglutaryl-CoA reductase (HMGCR) using ESKO-derived eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA), and astaxanthin.
Remote epitaxy is taking center stage in creating freestanding complex oxide thin films with high crystallinity that could serve as an ideal building block for stacking artificial heterostructures with distinctive functionalities. However, there exist technical challenges, particularly in the remote epitaxy of perovskite oxides associated with their harsh growth environments, making the graphene interlayer difficult to survive. Transferred graphene, typically used for creating a remote epitaxy template, poses limitations in ensuring the yield of perovskite films, especially when pulsed laser deposition (PLD) growth is carried out, since graphene degradation can be easily observed.
View Article and Find Full Text PDFThe relentless miniaturization inherent in complementary metal-oxide semiconductor technology has created challenges at the interface of two-dimensional (2D) materials and metal electrodes. These challenges, predominantly stemming from metal-induced gap states (MIGS) and Schottky barrier heights (SBHs), critically impede device performance. This work introduces an innovative implementation of damage-free SbTe topological van der Waals (T-vdW) contacts, representing an ultimate contact electrode for 2D materials.
View Article and Find Full Text PDFThe purification of a fibrinolytic enzyme from the fruiting bodies of wild-growing medicinal mushroom, Pycnoporus coccineus was achieved through a two-step procedure, resulting in its homogeneity. This purification process yielded a significant 4.13-fold increase in specific activity and an 8.
View Article and Find Full Text PDFCrystallographic characteristics, including grain boundaries and crystallographic orientation of each grain, are crucial in defining the properties of two-dimensional materials (2DMs). To date, local microstructure analysis of 2DMs, which requires destructive and complex processes, is primarily used to identify unknown 2DM specimens, hindering the subsequent use of characterized samples. Here, a nondestructive large-area 2D crystallographic analytical method through sticky-note-like van der Waals (vdW) assembling-disassembling is presented.
View Article and Find Full Text PDFSemi-infinite single-atom-thick graphene is an ideal reinforcing material that can simultaneously improve the mechanical, electrical, and thermal properties of matrix. Here, we present a float-stacking strategy to accurately align the monolayer graphene reinforcement in polymer matrix. We float graphene-poly(methylmethacrylate) (PMMA) membrane (GPM) at the water-air interface, and wind-up layer-by-layer by roller.
View Article and Find Full Text PDFThe study investigated the effects of (Siebold & Zucc.) Maxim. extract (PJE) and fenofibrate on diet-induced obesity (DIO) in mice.
View Article and Find Full Text PDFWe successfully demonstrated the improvement and stabilization of the electrical properties of a graphene field effect transistor by fabricating a sandwiched amorphous boron nitride (a-BN)/graphene (Gr)/a-BN using a directly grown a-BN film. The a-BN film was grown low-pressure chemical vapor deposition (LPCVD) at a low growth temperature of 250 °C and applied as a protection layer in the sandwiched structure. Both structural and chemical states of the as-grown a-BN were verified by various spectroscopic and microscopic analyses.
View Article and Find Full Text PDFIn blood coagulation, circulating platelets and coagulation factors are crucial for the primary process because thrombi are generated by fibrin clotting with fibrinogen, thrombin, FXIIIa, and platelet activation. Therefore, strategies to reduce the activity of key coagulation factors, or interfere with their functions and delay the activation of platelets can be used as important tools to suppress excessive blood clot formation and platelet hyperactivation. This study examined the antithrombotic activity and hematological toxicity of PA, IVA, and 4-HA isolated from (Carr.
View Article and Find Full Text PDFWe found that the fermented Lentinula edodes (FLE) products exhibited various differences in terms of proximate composition, free sugar, and amino acid. In particular, there were higher levels of ergosterol, and ergothioneine in FLE-Pediococcus pentosaceus (PP) and -Lactobacillus acidophilus (LA) than in the L. edodes (LE) products.
View Article and Find Full Text PDFA fibrinolytic enzyme with thrombolytic, anticoagulant activities was purified from fruiting bodies of wild-growing mushroom Boletus pseudocalopus Hongo and homogenized with a two-step procedure with a 6.11-fold increase in specific activity and 3.2% recovery.
View Article and Find Full Text PDFPrevious studies have suggested that vinegar intake can help to reduce body fat and hyperglycemia. Therefore, this study aimed to evaluate the anti-obesity efficacy of vinegar fermented using Cudrania tricuspidata fruits (CTFV) and its main phenolic constituents and to analyze its molecular mechanism and changes in obesity-related metabolizing enzymatic activities. We found that HFD significantly caused hepatic steatosis; increases in body fats, feed efficiency, liver mass, lipids, insulin, oxidative parameters, cardiovascular-associated risk indices, lipase and α-amylase activities, whereas CTFV efficaciously attenuated HFD-induced oxidant stress, fat accumulation, obesity-related enzymatic activity, and the activation or reduction of obesity-related molecular reactions via improving metabolic parameters including phosphorylated insulin receptor substrate 1, protein tyrosine phosphatase 1B, phosphorylated phosphoinositide 3-kinase/protein kinase B, phosphorylated mitogen-activated protein kinases, sterol regulatory element-binding protein 1c, CCAAT/enhancer-binding protein, and fatty acid synthase; and decreases in adiponectin receptor 1, leptin receptor, adenosine monophosphate-activated protein kinase, acetyl-CoA carboxylase, and peroxisome proliferator-activated receptor, subsequently ameliorating HFD-induced obesity.
View Article and Find Full Text PDFThe competition between quality and productivity has been a major issue for large-scale applications of two-dimensional materials (2DMs). Until now, the top-down mechanical cleavage method has guaranteed pure perfect 2DMs, but it has been considered a poor option in terms of manufacturing. Here, we present a layer-engineered exfoliation technique for graphene that not only allows us to obtain large-size graphene, up to a millimeter size, but also allows selective thickness control.
View Article and Find Full Text PDFVinegar has been found to have in vitro improvement effect on inflammatory biomarkers, and clinically used to improve inflammation and obesity-related diseases. This study was designed to analyze in vitro anti-inflammatory effects of fruits vinegar (CTFV) in a co-culture system with macrophages and adipocytes. We analyzed the physicochemical properties and polyphenolic ingredients of CTFV, and investigated in vitro anti-inflammatory effects of CTFV in a co-culture system with macrophages and adipocytes.
View Article and Find Full Text PDFThe purpose of the present study was to investigate whether several phytophenolic ingredients isolated from Maclura tricuspidata (Carr.) Bur fruits inhibit the activity of obesity-related enzymes including pancreatic lipase, α-amylase, β-glucosidase, phosphodiesterase IV, alkaline phosphatase, and citrate synthase, and the compounds play as an inhibitor against the target enzymes in kinetic studies. The enzyme assays indicated that the fruit extract and its phytophenolic compounds inhibited significantly the enzymatic activity of the five target enzymes.
View Article and Find Full Text PDFThe present study investigates and evaluates the antioxidant and antithrombotic effects of Dendropanax morbifera Léveille (Araliaceae) extracts (DME) and its ferment (FDME). Antioxidant activities were improved by FDME treatment, especially 66.74% of hydroxyl radical scavenging activity was observed at 100 μg of FDME treatment.
View Article and Find Full Text PDFJ Biochem Mol Toxicol
December 2018
Recently, antiobesity studies using the method of inhibiting enzymatic activity of obesity-related enzymes as targets have received considerable attention. The aims of the current study were to investigate whether p-hydroxybenzyl alcohol (HBA), identified from Cudrania tricuspidata fruits with antiobesity effects, inhibits the activity of digestive and obesity-related enzymes and acts as an inhibitor against four target enzymes in kinetic studies. In vitro enzyme assays showed HBA at the highest concentration significantly reduced the enzymatic activity of four targets: pancreatic lipase (IC = 2.
View Article and Find Full Text PDFWe purified Lentinus edodes GNA01 fibrinolytic enzyme (LEFE) and identified it as a novel metalloprotease. LEFE was purified to homogeneity through a 2-step procedure, with an 8.28-fold increase in specific activity and 5.
View Article and Find Full Text PDFJ Biochem Mol Toxicol
January 2018
We discovered recently in vitro and in vivo antithrombotic and cytotoxicity effects of ferulic acid. The cytotoxicity assays showed that ferulic acid (∼300 μg/mL) did not cause any significant toxicity on three cell lines, platelets, leukocytes, and erythrocytes. In vitro assays showed inhibitory effects of ferulic acid on thrombin (THR)- or collagen/epinephrine-stimulated platelet activation by inhibiting platelet aggregation, and decreasing clot retraction activity.
View Article and Find Full Text PDFNovel serine metalloprotease-like enzyme, C142 was purified from the culture supernatant of Bacillus subtilis C142. The C142 was purified to homogeneity by a two-step procedure with a 20.7-fold increase in specific activity and 0.
View Article and Find Full Text PDFWe investigated the effect of the culinary-medicinal mushroom Pleurotus eryngii var. ferulae DDL01 on oxidative damage in the liver and brain and a high-fat/high-cholesterol-induced hyperlipidemic model. In in vitro studies, the water extracts of the fruiting bodies showed strong scavenging activities of DPPH (139.
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