-
2201
ExoMolHR: A Relational Database of Empirical High-resolution Molecular Spectra
Published 2025-01-01Get full text
Article -
2202
Metals contamination of Aquifer in Warri and Port- Harcourt (Niger – Delta Region)
Published 2024-12-01“…The metal cations were also determined using Atomic Absorption Spectrophotometer (AAS) method, hardness, chloride and bicarbonate concentrations were determined using titrimetric method, sulphate was determined by spectrophotometer method. …”
Get full text
Article -
2203
Jamblang (Syzygium cumini) leaf extract decreased hydrogen peroxide in lead acetate-induced rats
Published 2022-12-01“… Background: Free radicals are atoms or molecules with one or more unpaired electrons. …”
Get full text
Article -
2204
Machine Learning Approach and Model for Predicting Proton Stopping Power Ratio and Other Parameters Using Computed Tomography Images
Published 2024-12-01“…Purpose: The purpose of this study was to accurately estimate proton stopping power ratio (SPR), relative electron density ρe, effective atomic number (Zeff), and mean excitation energy (I) using one simple robust model and design a machine learning algorithm that will lead to automation. …”
Get full text
Article -
2205
Fretting behavior of piston ring-cylinder liner components of a diesel engine running on TiO2 nanolubricant
Published 2022-12-01“…Scanning electron microscopy analysis was conducted to observe morphology of the nanoparticle and to analyze the surface structure of the samples before and after the abrasion tests. Atomic force microscopy analysis was done to obtain the 3D images of the worn surfaces and to make a comprehensive comparison of tribological performance between engine lubricant and nanolubricant. …”
Get full text
Article -
2206
The Effects of Storage on Sachet Water Quality in Ogun State, Nigeria
Published 2015-07-01“…Cationic and anionic constituents were determined by standard titrimetric and spectrophotometric methods, trace and heavy water were determined by Atomic Adsorption Spectrophotometer. The study revealed that all the brands of water analyzed were physically and chemically wholesome and met the WHO standards. …”
Get full text
Article -
2207
Experimental study of different oxides in B2O3–ZnO–BaO glass system for gamma-ray shielding
Published 2025-01-01“…Sample BZBCu has a LAC value of 16.203 1/cm, which is also the highest LAC value among all the studied glasses, this is as a result of the high density of this glass and due to the high atomic number of Cu. The glasses’ transmission factor (TF) at 1 cm thickness against energy was determined. …”
Get full text
Article -
2208
Effect of p-InGaN Cap Layer on Low-Resistance Contact to p-GaN: Carrier Transport Mechanism and Barrier Height Characteristics
Published 2025-01-01“…A comparative analysis with highly doped p-InGaN revealed the key mechanisms contributing to low-resistance contacts. Atomic force microscopy inspections showed that the surface roughness depends on the doping levels and cap layer thickness, with higher doping improving the surface quality. …”
Get full text
Article -
2209
Thermomechanically induced phase separation at elevated temperatures in a CoCr0.4NiSi0.3 medium-entropy alloy
Published 2025-01-01“…The directional vacancy diffusion of solute atoms along specific crystal planes of dynamically recrystallized (DRXed) grains leads to phase separation at elevated temperatures. …”
Get full text
Article -
2210
High-entropy assisted capacitive energy storage in relaxor ferroelectrics by chemical short-range order
Published 2025-01-01“…We design a chemical short-range order strategy to modulate polarization response under external electric field and achieve substantial enhancements of energy storage properties, i.e. an ultrahigh energy density of ~16.4 J/cm3 with markedly improved efficiency ~90% at an electric field of 85 kV/mm in Nb doped (Bi0.2Na0.2K0.2La0.2Sr0.2) TiO3 system. Atomic-scale scanning transmission electron microscopy observations show that Nb exhibits a chemical short-range order structure, with Nb enriched regions displaying ultrasmall polar nanoregions and more flexible polarization configurations, which is conducive to achieving high maximum polarization and low residual polarization. …”
Get full text
Article -
2211
Boosting singlet oxygen generation for salinity wastewater treatment through co-activation of oxygen and peroxymonosulfate in photoelectrochemical process
Published 2025-01-01“…Here, we report a unique strategy for boosting singlet oxygen (1O2) generation via coactivation of oxygen and peroxymonosulfate (PMS) by regulating the electron transfer regime in the photoelectrochemical process. The Fe-N bridge in atomic Fe-modified graphitic carbon nitride (denoted SA-FeCN) favors the construction of electron-defective Fe and electron-rich N vacancies (Nvs) to accelerate directional electron transfer. …”
Get full text
Article -
2212
Bromine‐Substituted Cation Anchoring to Suppress Ion Migration in Alternating Cations Intercalation‐Type Perovskite for Stable X‐Ray Detection
Published 2025-02-01“…Specifically, introducing Br atom forms additional intermolecular interactions (i.e., Br···π) and enhances hydrogen bonding interactions, greatly improving the structure stability. …”
Get full text
Article -
2213
Trace elements in children with pre-dialysis and end-stage renal disease
Published 2024-01-01“…Blood samples were obtained and tested for Fe, Zn and Cu levels utilising flame-atomic absorption spectrophotometry (FAAS). Anthropometric data, such as age, body mass index (BMI) and blood pressure, were also collected. …”
Get full text
Article -
2214
Robust highly conductive patterns in flexible PEEK materials with either sp3 or sp2 dominant carbon phases produced by using ultrashort laser pulses
Published 2025-03-01“…The rationale for the first pass was to disrupt carbon atoms, the second and third exposures were to gently modify this disrupted phase, and the fourth pass was to anneal the final structure. …”
Get full text
Article -
2215
Tadpole-Shaped POSS-Based Copolymers and the Aggregation Behavior at Air/Water Interface
Published 2018-01-01“…The morphology of the deposited LB thin film was illustrated by atomic force microscopy (AFM) and X-ray photoelectron spectroscopy (XPS). …”
Get full text
Article -
2216
The Investigation of Mixed Ferrofluids Containing Iron Oxide nanoparticles and Microspheres
Published 2021-01-01“…The ratio of surface to volume increases along with the decrease in atomic size, essential for assessing the surface morphological properties. …”
Get full text
Article -
2217
Engineered Porous Carbon for High Volumetric Methane Storage
Published 2014-08-01“…Aberration-corrected scanning transmission electron microscopy data show the atomic structure of high-surface-area activated carbon (2600 m 2 /g). …”
Get full text
Article -
2218
Structural Variety in Transition Metal Complexes of Tripodal Ligands Containing Mixed Quinolyl and Pyridyl Donors
Published 2025-01-01“…Abstract The syntheses of the tripodal tetraamine ligands 2‐(pyridin‐2‐yl)‐N,N‐bis(quinolin‐2‐ylmethyl)ethan‐1‐amine (DQPEA), N‐(pyridin‐2‐ylmethyl)‐2‐(quinolin‐2‐yl)‐N‐(2‐(quinolin‐2‐yl)ethyl)ethan‐1‐amine (DQEPMA), 2‐(pyridin‐2‐yl)‐N,N‐bis(2‐(quinolin‐2‐yl)ethyl)ethan‐1‐amine (DQEPEA), N,N‐bis(pyridin‐2‐ylmethyl)‐2‐(quinolin‐2‐yl)ethan‐1‐amine (QEDPMA), and 2‐(pyridin‐2‐yl)‐N‐(2‐(pyridin‐2‐yl)ethyl)‐N‐(2‐(quinolin‐2‐yl)ethyl)ethan‐1‐amine (QEDPEA) containing mixed quinolyl and pyridyl moieties are reported, with 2‐vinylquinoline being used to attach quinolylethyl arms to the aliphatic N atom. X‐ray crystal structures of [(Mn(DQPEA))2O2](ClO4)2 ⋅ (CH3CN)2, [Cu(DQPEA)NCCH3](ClO4)2, [Zn(DQPEA)NCCH3](ClO4)2, [Pd(DQEPEA)Cl]Cl ⋅ 11H2O are detailed, with four, five, and six‐coordination observed. …”
Get full text
Article -
2219
Amphotericin B Encapsulation in Polymeric Nanoparticles: Toxicity Insights via Cells and Zebrafish Embryo Testing
Published 2025-01-01“…<b>Methods:</b> In this study, we produced and characterized AmB loaded and non-loaded PNPs by nanoprecipitation, dynamic light scattering, transmission electron microscopy, atomic force microscopy and spectroscopy. Afterwards, we verified their toxicity through in vitro MTT assays in three cell lines (HEK293, HepG2, and J774 A1) and in vivo tests with zebrafish embryos. …”
Get full text
Article -
2220
Coherent Control of Single Molecules via Phase-Shaped Two-Photon Excitation at Room Temperature
Published 2025-01-01“…Coherent control has been achieved in atoms and small molecules in gas phase during the past few decades. …”
Get full text
Article