Publications by authors named "Anh T Ngo"

Background: The anatomy of bicuspid aortic valves (BAV) varies considerably and is broadly classified into two main types: two-sinus and fused BAV. Possible prognostic implications of these two main types remain unclear. This study aimed to assess potential associations between BAV morphology and the timing of surgery of the aortic valve or ascending aorta.

View Article and Find Full Text PDF

Introduction: Infiltrative anesthesia with lidocaine plays a vital role in pain management during dermatological procedures, ensuring patient comfort throughout the process.

Objective: We aimed to investigate the correlation between three different concentrations of lidocaine (2% lidocaine with 1:100,000 epinephrine diluted at ratios of 1:2, 1:4, and 1:6) used in infiltrative anesthesia and their analgesic efficacy and adverse effects in dermatological procedures.

Methods: This study employed a randomized design, with 240 patients assigned to receive varying concentrations of lidocaine with epinephrine (2% lidocaine with 1:100,000 epinephrine diluted at ratios of 1:2, 1:4, or 1:6) during seven common dermatological procedures: punch biopsy, excisional biopsy, CO2 laser biopsy, surgical excision, CO2 laser excision, fractional CO2 laser treatment, and filler injection.

View Article and Find Full Text PDF

Multidrug-resistant (MDR) bacterial pneumonia poses a critical threat to global public health. The opportunistic Gram-negative pathogen Pseudomonas aeruginosa is a leading cause of nosocomial-associated pneumonia, and an effective vaccine could protect vulnerable populations, including the elderly, immunocompromised, and those with chronic respiratory diseases. Highly heterogeneous outer membrane vesicles (OMVs), shed from Gram-negative bacteria, are studded with immunogenic lipids, proteins, and virulence factors.

View Article and Find Full Text PDF

Spin-crossover (SCO) molecular-based switches have shown promise across a range of applications since their discovery, including sensing, information storage, actuators, and displays. Yet limited processability remains a barrier to their real-world implementation, as traditional methods for integrating SCO materials into polymer matrices are often complex, expensive, and prone to producing uneven material distributions. Herein, we demonstrate how 3D flow-focusing chemistry enables unprecedented control for the direct fabrication of SCO composite materials, addressing key challenges in processability, scalability, and cost.

View Article and Find Full Text PDF

Deep neural networks (DNNs) have gained considerable traction in recent years due to the unparalleled results they gathered. However, the cost behind training such sophisticated models is resource-intensive, resulting in many to consider DNNs to be intellectual property (IP) to model owners. In this era of cloud computing, high-performance DNNs are often deployed all over the Internet so that people can access them publicly.

View Article and Find Full Text PDF

We report atomic-scale gating and visualization of local charge distribution within individual rare-earth-based molecular complexes on a metallic surface. The complexes are formed by a positively charged lanthanum ion coordinated to a (pcam) molecule and a negatively charged counterion trapped underneath via electrostatic interactions on a Au(111) surface. Local gating is performed by adding an additional negatively charged counterion to one side of the complex, which results in the redistribution of charges within the complex and a positive shift of the frontier orbitals.

View Article and Find Full Text PDF

Lithium-sulfur (Li-S) all-solid-state batteries (ASSBs) hold great promise for next-generation safe, durable and energy-dense battery technology. However, solid-state sulfur conversion reactions are kinetically sluggish and primarily constrained to the restricted three-phase boundary area of sulfur, carbon and solid electrolytes, making it challenging to achieve high sulfur utilization. Here we develop and implement mixed ionic-electronic conductors (MIECs) in sulfur cathodes to replace conventional solid electrolytes and invoke conversion reactions at sulfur-MIEC interfaces in addition to traditional three-phase boundaries.

View Article and Find Full Text PDF
Article Synopsis
  • Determining electronic properties of correlated oxides is complicated, particularly with traditional methods like DFT+U that struggle with electron correlation and band gap predictions.
  • Our research introduces a new methodology using a selected configuration interaction (sCI) approach that enhances diffusion Monte Carlo (DMC) simulations for a more accurate prediction of band gaps, specifically in LiCoO, aligning closely with experimental outcomes.
  • The study highlights the inadequacies of single-reference methods and suggests that adopting advanced techniques like sCI can significantly improve simulations of electronic states in strongly correlated materials, paving the way for future research in complex systems.
View Article and Find Full Text PDF

Pemphigus is a rare blistering autoimmune disease that damages the integumentary system and lowers the quality of life of patients. Interleukin-6 (IL-6) has been linked to the immunopathogenesis of pemphigus, according to recent research. Thus, the investigation purpose was to assess the function of IL-6 in the development and intensity of pemphigus disease.

View Article and Find Full Text PDF
Article Synopsis
  • Rare-earth complexes are crucial for separation chemistry and have applications in emission and energy upconversion.
  • Researchers have created 2D rare-earth clusters on a metal surface, allowing for detailed study of their properties using scanning tunneling microscopy.
  • These clusters exhibit high mobility at around 100 K but become stable and self-limiting at 5 K, demonstrating unique mechanical stability and a chiral structure.
View Article and Find Full Text PDF

Rechargeable lithium (Li) metal batteries face challenges in achieving stable cycling due to the instability of the solid electrolyte interphase (SEI). The Li-ion solvation structure and its desolvation process are crucial for the formation of a stable SEI on Li metal anodes and improving Li plating/stripping kinetics. This research introduces an interfacial desolvation coating technique to actively modulate the Li-ion solvation structure at the Li metal interface and regulate the participation of the electrolyte solvent in SEI formation.

View Article and Find Full Text PDF

Anion solvation in electrolytes can largely change the electrochemical performance of the electrolytes, yet has been rarely investigated. Herein, three anions of bis(trifluoromethanesulfonyl)imide (TFSI), bis(fluorosulfonyl)imide (FSI), and derived asymmetric (fluorosulfonyl)(trifluoro-methanesulfonyl)imide (FTFSI) are systematically examined in a weakly Li cation solvating solvent of bis(3-fluoropropyl)ether (BFPE). In-situ liquid secondary ion mass spectrometry demonstrates that FTFSI and FSI anions are associated with BFPE solvent, while weak TFSI /BFPE cluster signals are detected.

View Article and Find Full Text PDF

Plasma cell-free DNA (cfDNA), a marker of disease severity in sepsis, is a recognized driver of thromboinflammation and a potential therapeutic target. In sepsis, plasma cfDNA is mostly derived from neutrophil extracellular trap (NET) degradation. Proposed NET-directed therapeutic strategies include preventing NET formation or accelerating NET degradation.

View Article and Find Full Text PDF

There is much interest in developing new energy storage systems to replace currently available ones that mainly work based on Li-ion intercalations. One attractive area is the Li-air battery for which most of the research has involved liquid electrolytes. There have been few studies on the use of a solid electrolyte in a Li-air battery.

View Article and Find Full Text PDF

Introduction: Neuropathic pain is a debilitating condition resulting from various etiologies such as diabetes, multiple sclerosis, and infection, and is associated with decreased quality of life, poor health outcomes, and increased economic burden. However, epidemiological studies on neuropathic pain have been largely limited in Vietnam.

Methods: A cross-sectional study was conducted on adult Vietnamese industrial workers across three manufacturing plants.

View Article and Find Full Text PDF

Variable temperature electron paramagnetic resonance (VT-EPR) was used to investigate the role of the environment and oxidation states of several coordinated Eu compounds. We find that while Eu(III) chelating complexes are diamagnetic, simple chemical reduction results in the formation of paramagnetic species. In agreement with the distorted symmetry of Eu molecular complexes investigated in this study, the EPR spectrum of reduced complexes showed axially symmetric signals ( = 2.

View Article and Find Full Text PDF
Article Synopsis
  • X-rays, discovered in 1895, have diverse applications but typically require large amounts of material for characterization, prompting efforts to reduce material quantity.
  • Researchers have developed a method to analyze the elemental and chemical state of individual atoms, using a specialized tip to detect X-ray-excited currents from iron and terbium atoms.
  • This technique demonstrates atomically localized detection and combines synchrotron X-rays with quantum tunneling, paving the way for advanced experiments to study materials at the single-atom level.
View Article and Find Full Text PDF

The chemical pathway for synthesizing covalent organic frameworks (COFs) involves a complex medley of reaction sequences over a rippling energy landscape that cannot be adequately described using existing theories. Even with the development of state-of-the-art experimental and computational tools, identifying primary mechanisms of nucleation and growth of COFs remains elusive. Other than empirically, little is known about how the catalyst composition and water activity affect the kinetics of the reaction pathway.

View Article and Find Full Text PDF

DNA toroids are compact torus-shaped bundles formed by one or multiple DNA molecules being condensed from the solution due to various condensing agents. It has been shown that the DNA toroidal bundles are twisted. However, the global conformations of DNA inside these bundles are still not well understood.

View Article and Find Full Text PDF

A lithium-air battery based on lithium oxide (LiO) formation can theoretically deliver an energy density that is comparable to that of gasoline. Lithium oxide formation involves a four-electron reaction that is more difficult to achieve than the one- and two-electron reaction processes that result in lithium superoxide (LiO) and lithium peroxide (LiO), respectively. By using a composite polymer electrolyte based on LiGePS nanoparticles embedded in a modified polyethylene oxide polymer matrix, we found that LiO is the main product in a room temperature solid-state lithium-air battery.

View Article and Find Full Text PDF

The rechargeable lithium-oxygen (Li-O) battery has the highest theoretical specific energy density of any rechargeable batteries and could transform energy storage systems if a practical device could be attained. However, among numerous challenges, which are all interconnected, are polarization due to sluggish kinetics, low cycle life, small capacity, and slow rates. In this study, we report on use of KMnO to generate a colloidal electrolyte made up of MnO nanoparticles.

View Article and Find Full Text PDF

Complexes containing rare-earth ions attract great attention for their technological applications ranging from spintronic devices to quantum information science. While charged rare-earth coordination complexes are ubiquitous in solution, they are challenging to form on materials surfaces that would allow investigations for potential solid-state applications. Here we report formation and atomically precise manipulation of rare-earth complexes on a gold surface.

View Article and Find Full Text PDF

Background: Systemic lupus erythematosus (SLE) is a chronic autoimmune disease with increased risk of cardiac dysfunction. The pathophysiological mechanisms are poorly understood, and prognostic markers are warranted.

Purpose: We aimed to identify SLE-characteristics associated with measures of cardiac size and function during a five-year follow-up.

View Article and Find Full Text PDF

Solid-state lithium metal batteries (SSLMBs) that utilize novel solid electrolytes (SEs) have garnered much attention because of their potential to yield safe and high-energy-density batteries. Sulfide-based argyrodite-class SEs are an attractive option because of their impressive ionic conductivity. Recent studies have shown that LiF at the interface between Li and SE enhances electrochemical stability.

View Article and Find Full Text PDF
Article Synopsis
  • Lithium-oxygen batteries are seen as promising for future electric vehicles but face challenges like poor efficiency and early failure due to slow reaction rates and insulating products.
  • A conductive metal organic framework (c-MOF) is identified to enhance the growth of nanocrystalline Li O structures, improving discharge rates and supporting high current demands.
  • This innovation enables low charge potentials and longer cycle life for the batteries, paving the way for advanced energy storage solutions using c-MOFs.
View Article and Find Full Text PDF