Background: In the treatment of depression, medication plays a crucial role. However, insufficient patient adherence to medication often results in unsatisfactory treatment outcomes, increasing both the recurrence and rehospitalization rates of depression, and consequently imposing a greater economic burden on the healthcare system.
Objectives: Our objective was to examine the impact of pharmacogenomic testing on medication adherence and antidepressant switching rates among individuals diagnosed with depression.
Background: Analyzing antidepressant prescribing in real-world settings can provide clinicians and health policymakers valuable information.
Aim: This epidemiological study examined the status and trends in antidepressant prescribing among the Chinese population from July 1, 2017, to June 30, 2022.
Method: A retrospective study was conducted in three hospitals.
The electrochemical upcycling of nitrate (NO) to ammonia (NH) holds promise for synergizing both wastewater treatment and NH synthesis. Efficient stripping of gaseous products (NH, H, and N) from electrocatalysts is crucial for continuous and stable electrochemical reactions. This study evaluated a layered electrocatalyst structure using copper (Cu) dendrites to enable a high curvature and hydrophobicity and achieve a stratified liquid contact at the gas-liquid interface of the electrocatalyst layer.
View Article and Find Full Text PDFThe COVID-19 pandemic sparked public health concerns about the transmission of airborne viruses. Current methods mainly capture pathogens without inactivation, leading to potential secondary pollution. Herein, we evaluated the inactivation performance of a model viral species (MS2) in simulated bioaerosol by an electromagnetically enhanced air filtration system under a 300 kHz electromagnetic induction field.
View Article and Find Full Text PDFMXenes exhibit excellent conductivity, tunable surface chemistry, and high surface area. Particularly, the surface reactivity of MXenes strongly depends on surface exposed atoms or terminated groups. This study examines three types of MXenes with oxygen, fluorine, and chlorine as respective terminal atoms and evaluates their electrosorption, desorption, and oxidative properties.
View Article and Find Full Text PDFNanomaterials (Basel)
October 2021
The strain in hybrid van der Waals heterostructures, made of two distinct two-dimensional van der Waals materials, offers an interesting handle on their corresponding electronic band structure. Such strain can be engineered by changing the relative crystallographic orientation between the constitutive monolayers, notably, the angular misorientation, also known as the "twist angle". By combining angle-resolved photoemission spectroscopy with density functional theory calculations, we investigate here the band structure of the WS/graphene heterobilayer for various twist angles.
View Article and Find Full Text PDFThe presence of reduced aminothiols, including homocysteine (Hcy), cysteine (Cys), cysteinyl-glycine (CG), and glutathione (GSH), is significantly increased in the pathological state. However, there have been no reports on the relationship between reduced aminothiols (Hcy, Cys, CG, and GSH) and different genders, ages, and drug combinations in human blood. The accurate quantification of these reduced thiols in biological fluids is important for monitoring some special pathological conditions of humans.
View Article and Find Full Text PDFLaboratory biosafety has become a core focus in biological analysis, owing to the frequent occurrence of laboratory-acquired infections caused by the leakage of pathogenic microorganisms. For this purpose, the authors developed a safe pretreatment device combining a sealing technique with a direct injection technique. In this study, several bacteria and viruses were used to validate the filtration effect of the invention.
View Article and Find Full Text PDFThe large-scale growth of semiconducting thin films on insulating substrates enables batch fabrication of atomically thin electronic and optoelectronic devices and circuits without film transfer. Here an efficient method to achieve rapid growth of large-area monolayer MoSe films based on spin coating of Mo precursor and assisted by NaCl is reported. Uniform monolayer MoSe films up to a few inches in size are obtained within a short growth time of 5 min.
View Article and Find Full Text PDFHigh-dose methotrexate (HD-MTX) can be highly effective as well as extremely toxic. Many drug molecules can bind to plasma proteins to different extents , whereas only the free drug can reach the site of action to exert a pharmacological effect and cause toxicity. However, free MTX concentrations in plasma have not been reported.
View Article and Find Full Text PDFDespite extensive research on the tribological properties of MoS, the frictional characteristics of other members of the transition-metal dichalcogenide (TMD) family have remained relatively unexplored. To understand the effect of the chalcogen on the tribological behavior of these materials and gain broader general insights into the factors controlling friction at the nanoscale, we compared the friction force behavior for a nanoscale single asperity sliding on MoS, MoSe, and MoTe in both bulk and monolayer forms through a combination of atomic force microscopy experiments and molecular dynamics simulations. Experiments and simulations showed that, under otherwise identical conditions, MoS has the highest friction among these materials and MoTe has the lowest.
View Article and Find Full Text PDFSemiconducting monolayers of a 2D material are able to concatenate multiple interesting properties into a single component. Here, by combining opto-mechanical and electronic measurements, we demonstrate the presence of a partial 2H-1T' phase transition in a suspended 2D monolayer membrane of MoS. Electronic transport shows unexpected memristive properties in the MoS membrane, in the absence of any external dopants.
View Article and Find Full Text PDFBackground: With the outbreak of COVID-19, it has become very important to improve biosafety measures taken by medical staff. Fewer pretreatment steps correspond to lower chances of infection. The authors established a direct injection technique to analyze levetiracetam (LEV) concentrations in human serum and studied its application in therapeutic drug monitoring.
View Article and Find Full Text PDFFatal road traffic crashes are often related to multifarious risk factors, among which driving under the influence of drugs (DUID) has been reported as a significantly contributing cause. The first worry about the side-effect of influencing driving drugs is central nervous system adverse reaction, and anti-hypersensitivity drugs are a class of drugs with such side effects meanwhile has been widely used for common allergic diseases thus posing a great challenge to road safety and demanding a rapid and efficient method to detect. In this work, a method based on magnetic graphene oxide dispersive solid phase extraction (MGO-D-SPE) combined with ion mobility spectrometry (IMS) was firstly introduced for simultaneous determination of ephedrine, pseudoephedrine, diphenhydramine, promethazine and terfenadine in saliva and urine matrices.
View Article and Find Full Text PDFOwing to their unique electrical and optical properties, two-dimensional transition metal dichalcogenides have been extensively studied for their potential applications in biosensing. However, simultaneous utilization of both optical and electrical properties has been overlooked, yet it can offer enhanced accuracy and detection versitility. Here, we demonstrate a dual-mode optoelectronic biosensor based on monolayer molybdenum disulfide (MoS) capable of producing simultaneous electrical and optical readouts of biomolecular signals.
View Article and Find Full Text PDFPotential genotoxic impurities (PGIs) are a series of compounds that could potentially damage DNA. Therefore, a sensitive method is needed for detection and quantification. The present work described and validated a method for the quantification of one PGI (namely 1,4-benzodioxane-6-aldehyde) in Eliglustat tartrate (EGT) active pharmaceutical ingredient (API) substances using dispersive liquid-liquid microextraction (DLLME) as sample preparation to remove matrix effect and detected by HPLC-UV.
View Article and Find Full Text PDFTwo-dimensional (2D) van der Waals superlattices comprised of two stacked monolayer materials have attracted significant interest as platforms for novel optoelectronic and structural behavior. Although studies are focused on superlattice fabrication, less effort has been given to the nanoscale patterning and structural modification of these systems. In this report, we demonstrate the localized layer-by-layer thinning and formation of nanopores/defects in 2D superlattices, such as stacked MoS-WS van der Waals heterostructures and chemical vapor deposited bilayer WSe, using aberration-corrected scanning transmission electron microscopy (STEM).
View Article and Find Full Text PDFBilayer two-dimensional (2D) van der Waals (vdW) materials are attracting increasing attention due to their predicted high quality electronic and optical properties. Here, we demonstrate dense, selective growth of WSe bilayer flakes by chemical vapor deposition with the use of a 1:10 molar mixture of sodium cholate and sodium chloride as the growth promoter to control the local diffusion of W-containing species. A large fraction of the bilayer WSe flakes showed a 0 (AB) and 60° (AA') twist between the two layers, whereas Moiré 15 and 30° twist angles were also observed.
View Article and Find Full Text PDFUltralow friction can be achieved with 2D materials, particularly graphene and MoS. The nanotribological properties of these different 2D materials have been measured in previous atomic force microscope (AFM) experiments sequentially, precluding immediate and direct comparison of their frictional behavior. Here, friction is characterized at the nanoscale using AFM experiments with the same tip sliding over graphene, MoS, and a graphene/MoS heterostructure in a single measurement, repeated hundreds of times, and also measured with a slowly varying normal force.
View Article and Find Full Text PDFTwo-dimensional molybdenum-disulfide (MoS2) catalysts can achieve high catalytic activity for the hydrogen evolution reaction upon appropriate modification of their surface. The intrinsic inertness of the compound's basal planes can be overcome by either increasing the number of catalytically active edge sites or by enhancing the activity of the basal planes via a controlled creation of sulfur vacancies. Here, we report a novel method of activating the MoS2 surface using swift heavy ion irradiation.
View Article and Find Full Text PDFTwo-dimensional heterostructures, such as FeO/MXene nanoparticles, can be attractive anode materials for lithium-ion batteries (LIBs) due to the synergy between high lithium-storage capacity of FeO and stable cyclability and high conductivity provided by MXene. Here, we improved the storage performance of TiCT (MXene)/FeO nanocomposite by confining FeO nanoparticles into TiCT nanosheets with different mixing ratios using a facile and scalable dry ball-milling process. Composites of TiCT -25 wt % FeO and TiCT -50 wt % FeO synthesized by ball-milling resulted in uniform distribution of FeO nanoparticles on TiCT nanosheets with minimum oxidation of MXene as compared to composites prepared by hydrothermal or wet sonication.
View Article and Find Full Text PDFACS Appl Mater Interfaces
July 2018
Two-dimensional (2D) particles, including transition metal carbides (MXenes), often exhibit large lateral-size polydispersity in delaminated colloidal solutions. This heterogeneity results in challenges when conducting fundamental studies, such as investigating correlations between properties and the 2D flake size. To resolve this challenge, we have developed solution-processable techniques to control and sort 2D titanium carbide (TiCT ) MXene flakes after synthesis based on sonication and density gradient centrifugation, respectively.
View Article and Find Full Text PDFThe scalable and sustainable manufacture of thick electrode films with high energy and power densities is critical for the large-scale storage of electrochemical energy for application in transportation and stationary electric grids. Two-dimensional nanomaterials have become the predominant choice of electrode material in the pursuit of high energy and power densities owing to their large surface-area-to-volume ratios and lack of solid-state diffusion. However, traditional electrode fabrication methods often lead to restacking of two-dimensional nanomaterials, which limits ion transport in thick films and results in systems in which the electrochemical performance is highly dependent on the thickness of the film.
View Article and Find Full Text PDFWe developed a high-yield synthesis of highly crystalline bilayer graphene (BLG) with two preferential stacking modes using a Ni-Cu gradient alloy growth substrate. Previously reported approaches for BLG growth include flat growth substrates of Cu or Ni-Cu uniform alloys and "copper pocket" structures. Use of flat substrates has the advantage of being scalable, but the growth mechanism is either "surface limited" (for Cu) or carbon precipitation (for uniform Ni-Cu), which results in multicrystalline BLG grains.
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