SMART: An Approach for Accurate Formula Assignment in Spatially Resolved Metabolomics.

Spatially resolved metabolomics plays a critical role in unraveling tissue-specific metabolic complexities. Despite its significance, this profound technology generates thousands of features, yet accurate annotation significantly lags behind that of LC-MS-based approaches. To bridge this gap, we introduce SMART, an open-source platform designed for precise formula assignment in mass spectrometry imaging.

Dietary sulfur amino acid restriction improves metabolic health by reducing fat mass.

Diet interventions such as calorie restriction or time-restricted feeding offer potential for weight management, but long-term success is often hindered by poor adherence due to the rewarding effects of sugars. In this study, we demonstrate that sulfur amino acid restriction (SAAR) diets promote rapid fat loss without impairing appetite and physiological locomotion, outperforming diets with restricted branched-chain amino acids. Weekly cycling of SAAR diets preserves metabolic benefits, such as reduced fat mass and improved glucose sensitivity.

Modulation of Electron-Donation Ability to Enhance the Low-Temperature NO Oxidation Performance of MnO/YMnO.

Managing the substantial NO emissions during the cold start of diesel vehicles presents a critical environmental challenge. Enhancing the conversion of NO to NO at low temperatures can significantly improve the efficiency of diesel aftertreatment systems. Manganese-based mullite catalysts are cost-effective and promising for NO oxidation; however, their low-temperature activity requires further enhancement.

Realizing Broad Color Tunability and Enhanced Thermal Stability via Energy Transfer in Ce, Eu-Codoped Ca-α-Sialon Phosphors.

Luminescent properties of phosphors can be modified and improved by constructing energy transfer. In this article, a series of Ce- and/or Eu-doped Ca-α-sialon phosphors were synthesized through the traditional solid-state reaction method. The construction of an efficient energy transfer enables the modulation of a wide range of light colors, thereby facilitating a gradual color change from blue-green (0.

Tunable NIR Emission of Cr-Activated Double-Perovskite Tantalates and Improvement of Luminescence Properties via Codoping Yb.

Broadband near-infrared (NIR) luminescent materials exhibit great potential in many fields including nondestructive examination, biological imaging, and night vision. Herein, the tunable NIR emission can be realized based on SrMTaO:Cr (M = Ga, Sc, In) tantalate phosphors with a double-perovskite structure, with the emission peak varying from 782 to 880 nm via cation modulation. Specifically, after being stimulated by a 460 nm blue light, the SrGaTaO/Cr phosphor demonstrates a broadband NIR emission with the full width at half-maximum (fwhm) over 180 nm, originating from two octahedral sites of Ga and Ta in SrGaTaO that can be occupied by Cr ions.

Achieving a Balance of Good Quantum Efficiency and Thermal Stability in the YCaScAlGeO:Cr Broadband Phosphor for Multiple NIR Spectroscopy Applications.

Near-infrared phosphor-converted light emitting diodes (NIR pc-LEDs) are considered as desirable NIR light sources to satisfy current needs owing to their numerous remarkable features. Nevertheless, as an essential component, previously reported NIR phosphors with broadband emission often suffer from inferior efficiency or thermal stability, therefore restricting their use and promotion. Herein, a novel Cr-doped garnet phosphor YCaScAlGeO:Cr (YCSAG:Cr) is developed via regulating the near-neighbor coordination polyhedron.

Improving the maize crop row navigation line recognition method of YOLOX.

The accurate identification of maize crop row navigation lines is crucial for the navigation of intelligent weeding machinery, yet it faces significant challenges due to lighting variations and complex environments. This study proposes an optimized version of the YOLOX-Tiny single-stage detection network model for accurately identifying maize crop row navigation lines. It incorporates adaptive illumination adjustment and multi-scale prediction to enhance dense target detection.

An efficient and thermally stable Cr-activated YGdScAlGaO garnet phosphor for NIR spectroscopy applications.

Near-infrared (NIR) spectroscopy realized by an NIR phosphor-converted light-emitting diode (pc-LED) as a light source has aroused considerable interest due to its numerous merits and widespread application scenarios. Nevertheless, developing NIR emitting phosphors with high performance is still the top priority. Here, we report a new YGdScAlGaO:Cr (YGSAG:Cr) garnet phosphor, which demonstrates a broadband emission peaking at 754 nm with a full width at half maximum (FWHM) of around 120 nm in the range of 650-1200 nm.

Near-Infrared LuCaScZrGaGeO:Cr Garnet Phosphor with Ultra-broadband Emission for NIR LED Applications.

Near-infrared phosphor-converted light-emitting diodes (NIR pc-LEDs), as a new generation of NIR lighting sources, have wide prospects in the areas of food analysis and biological and night vision imaging. Nevertheless, NIR phosphors are still limited by short-wave and narrowband emissions as well as low efficiency. Herein, a series of NIR phosphors, LuCaScZrGaGeO:Cr (LCSZGG:Cr), with broadband emissions have been developed and first reported.

Research Progress and Development of Near-Infrared Phosphors.

Near-infrared (NIR) light has attracted considerable attention in diverse applications, such as food testing, security monitoring, and modern agriculture. Herein, the advanced applications of NIR light, as well as various devices to realize NIR light, have been described. Among the diverse NIR light source devices, the NIR phosphor-converted light-emitting diode (pc-LED), serving as a new-generation NIR light source, has obtained attention due to its wavelength-tunable behavior and low-cost.

Integrated Modification Strategy Enables Remarkable Cyclability and Thermal Stability of Ni-Rich Cathode Materials for Lithium-Ion Batteries.

Structural degradation and surface chemical instability are dominant issues of Ni-rich layered cathodes, which trigger capacity fading and safety concerns, hindering the extensive application of Ni-rich cathodes toward high-energy, long-life lithium-ion batteries. Here, by combining trace Ta doping and an ultrathin Zr-Y mixed oxide coating, an integrated modification strategy significantly improves the cycling and thermal stability of Ni-rich LiNiCoAlO (NCA) cathodes. The integrated modified Ni-rich cathode provides an unprecedented comprehensive performance with a high discharge capacity of 212.

Multisite Cation Regulation of Broadband Cyan-Emitting (BaSr)LuSiO/Eu Phosphors for Full-Spectrum wLEDs.

Developing broadband cyan-emitting phosphors is an essential issue to achieve high-quality full-spectrum phosphor-converted white light-emitting diodes. Multisite cation regulation to modify the photoluminescence spectrum is a valid way to achieve broadband emission for phosphors. The BaLuSiO lattice with various cation sites for activator ions is a preferred host for broadband emitting phosphors.

Structure and Charge Regulation Strategy Enabling Superior Cyclability for Ni-Rich Layered Cathode Materials.

Ni-rich layered oxides are significantly promising cathode materials for commercial high-energy-density lithium-ion batteries. However, their major bottlenecks limiting their widespread applications are capacity fading and safety concerns caused by their inherently unstable crystal structure and highly reactive surface. Herein, surface structure and bulk charge regulation are concurrently achieved by introducing high-valence Ta ions in Ni-rich cathodes, which exhibit superior electrochemical properties and thermal stability, especially a remarkable cyclic stability with a capacity retention of 80% for up to 768 cycles at a 1C rate versus Li/Li .

Garnet phosphors for white-light-emitting diodes: modification and calculation.

Phosphor-converted white-light-emitting diodes (pc-wLEDs) have attracted considerable attention in general lighting and backlight display applications due to their high efficiency and long lifetime. The combination of Ce-doped yttrium aluminium garnet (YAG:Ce) with a blue LED chip is the most mature technology to obtain white light emission. Because of the excellent structural flexibility of garnet, many novel garnet phosphors have been designed and developed in the past few years.

Regulating the Grain Orientation and Surface Structure of Primary Particles through Tungsten Modification to Comprehensively Enhance the Performance of Nickel-Rich Cathode Materials.

Nickel-rich layered oxides, as the most promising commercial cathode material for high-energy density lithium-ion batteries, experience significant surface structural instabilities that lead to severe capacity deterioration and poor thermal stability. To address these issues, radially aligned grains and surface LiNiWO-like heterostructures are designed and obtained with a simple tungsten modification strategy in the LiNiCoMnO cathode. The formation of radially aligned grains, manipulated by the WO modifier during synthesis, provides a fast Li diffusion channel during the charge/discharge process.

Thermally Robust and Color-Tunable Blue-Green-Emitting BaMgSiO:Eu,Mn Phosphor for Warm-White LEDs.

The dual emission produced from Mn when codoped with rare earth ions like Eu or Ce in inorganic compounds makes these materials attractive as efficient, color-tunable phosphors for warm-white solid-state lighting. Here, a series of efficient blue-green-emitting BaMgSiO:Eu,Mn phosphors with thermally robust, tunable luminescence are reported. Steady-state and time-resolved photoluminescence spectroscopy reveal that Eu and Mn each occupy a single crystallographic site and confirm that energy transfer occurs from Eu to Mn.

Remaining Li-Content Dependent Structural Evolution during High Temperature Re-Heat Treatment of Quantitatively Delithiated Li-Rich Cathode Materials with Surface Defect-Spinel Phase.

Pre-extracting Li from Li-rich layered oxides by chemical method is considered to be a targeted strategy for improving this class of cathode material. Understanding the structural evolution of the delithiated material is very important because this is directly related to the preparation of electrochemical performance enhanced Li-rich material. Herein, we perform a high temperature reheat treatment on the quantitatively delithiated Li-rich materials with different amounts of surface defect-spinel phase and carefully investigate the structural evolution of these delithiated materials.

Double-Shelled InP/ZnMnS/ZnS Quantum Dots for Light-Emitting Devices.

Traditionally, ZnS or ZnSe is chosen as the shell material for InP quantum dots (QDs). However, for green or blue InP QDs, the ZnSe shell will form a type-II structure resulting in a redshift of the emission spectrum. Although the band gap of ZnS is wider, its lattice mismatch with InP is larger (∼7.

Second-Sphere Polyhedron-Distortion-Induced Broadened and Red-Shifted Emission in Lu(MgAl)(AlSi)O:Ce for Warm WLED.

Orange-yellow phosphors with extended broadband emission are highly desirable for warmer white-light-emitting diodes (WLED) with a higher color-rendering index. Targeted phosphors Ce-doped Lu(MgAl)(AlSi)O ( = 0, 0.25, 0.

Cyan-Green Phosphor (LuM)(AlSi)O:Ce for High-Quality LED Lamp: Tunable Photoluminescence Properties and Enhanced Thermal Stability.

High-quality white light-emitting diodes (w-LEDs) are mainly determined by conversion phosphors and the enhancement of cyan component that dominates the high color rendering index. New phosphors (LuM)(AlSi)O:Ce (M = Mg, Ca, Sr and Ba), showing a cyan-green emission, have been achieved via the co-substitution of Lu-Al by M-Si pair in LuAlO:Ce to compensate for the lack of cyan region and avoid using multiple phosphors. The excitation bands of (LuM)(AlSi)O:Ce (M = Mg, Ca, Sr and Ba) show a red-shift from 434 to 445 nm which is attributed to the larger centroid shift and crystal field splitting.

Significantly enhanced photoluminescence and thermal stability of LaSiNO:Ce,Tb the Ce → Tb energy transfer: a blue-green phosphor for ultraviolet LEDs.

A series of Ce-, Tb- and Ce/Tb-doped LaSiNO phosphors were synthesized by gas-pressure sintering (GPS). The energy transfer between Ce and Tb occurred in the co-doped samples, leading to a tunable emission color from blue to green under the 360 nm excitation. The energy transfer mechanism was controlled by the dipole-dipole interaction.

Synthesis and Photoluminescence Properties of a Blue-Emitting LaSiNO:Eu Phosphor.

Eu-doped LaSiNO phosphors were synthesized by the high temperature solid-state method, and their photoluminescence properties were investigated in this work. LaSiNO:Eu exhibits a strong broad absorption band centered at 320 nm, spanning the spectral range of 300-600 nm due to 4f → 4f5d electronic transitions of Eu. The emission spectra show a broad and asymmetric band peaking at 481-513 nm depending on the Eu concentration, and the emission color can be tuned in a broad range owing to the energy transfer between Eu ions occupying two independent crystallographic sites.

Origin of Spectral Blue Shift of Lu-Codoped YAG:Ce Phosphor: First-Principles Study.

Lu, with the smallest ionic radii in lanthanide ions, is an important and beneficial cation for tuning spectrum shifting toward a longer wavelength by ion substitution in many phosphors for solid-state lighting. However, in the Lu-substituted garnet system, the phosphor always has smaller lattice parameters and exhibits a shorter emission wavelength than other garnet phosphors. The mechanism of such a spectral blue shift induced by the Lu-codoped garnet phosphor is still unclear.

YScSiNC:Ce-A Broad Cyan-Emitting Phosphor To Weaken the Cyan Cavity in Full-Spectrum White Light-Emitting Diodes.

On the basis of a rough rule of thumb that the difference in ionic radius for the interstitial cationic pair may affect the structure of some nitride and carbonitride compounds, a novel carbonitride phosphor, YScSiNC:Ce, was successfully designed. The crystal structure (space group P6mc (No. 186), a = b = 5.