Results 61 to 70 of about 1,742,776 (288)

Research progress of the detection and analysis methods of heavy metals in plants

Frontiers in Plant Science
Heavy metal (HM)-induced stress can lead to the enrichment of HMs in plants thereby threatening people’s lives and health via the food chain. For this reason, there is an urgent need for some reliable and practical techniques to detect and analyze the ...
Shuang He, Yuting Niu, Lu Xing, Zongsuo Liang, Xiaomei Song, Xiaomei Song, Meihai Ding, Wenli Huang, Wenli Huang   +8 more
doaj   +1 more source

Machine Learning‐Supported Analysis for Predicting and Visualizing Nonlinear Relationships Between Material Properties in Electroplated Chromium Layers

Advanced Engineering Materials, EarlyView.
This study applies machine learning regression to predict chromium layer thickness in decorative trivalent chromium electroplating, using 441 experiments from laboratory‐scale (1L) and pilot‐scale (14L) setups. Tree‐based models, particularly CatBoost, outperformed linear regression by capturing nonlinear parameter interactions (R2$R^2$ up to 0.77 ...
Christoph Baumer, Christopher Mai, Luca Eisentraut, Andreas Bund, Ricardo Buettner   +4 more
wiley   +1 more source

Application and Research Progress of Rare Earth Element Labeling Technology in Immunoassay Detection

Targets
Rare earth elements (REEs), located in the IIIB group of the periodic table, can be detected in very small quantities by sensitive detection techniques.
Haoran Li, Wencan Jiang, Guojun Zhang
doaj   +1 more source

Investigating the Effect of Inclination Angle and the Influence of Scan Parameters on the Appearance and Thermal and Mechanical Properties of Filigree Tension Rods of LPBF‐Manufactured NiTi Shape‐Memory Alloys

Advanced Engineering Materials, EarlyView.
This article investigates the dependence of the properties on the manufacturing orientation in the form of the inclination angle to the build plate of LPBF‐fabricated NiTi rods with a diameter of 150–220 µm. Metallographic, chemical, thermal, and mechanical characterization show behavior under identical manufacturing conditions that ranges from ...
Sandra Herzig, Michael Werner, Christian Rotsch   +2 more
wiley   +1 more source

DNA‐Templated 2D Heterostructures as Phototriggered Dynamic Nanohybrids: From Releasing Molecular Loads to Controlling Enzyme Biocatalytic Function

Advanced Functional Materials, EarlyView.
DNA strands are employed both as dynamic linkers and nanoscale templates for the integration of Ag2S nanoparticles on MoS2, which in turn imparted photothermal responsiveness; this feature permits the selective cargo (fluorophore, quantum dots or an enzyme) release from the MoS2 surface in response to local heat induced by light irradiation.
Kai Chen, Haosen Miao, Weiying Hong, Matteo Palma   +3 more
wiley   +1 more source

From contamination to detection: The growing threat of heavy metals

Heliyon
Heavy metals like lead, mercury, cadmium, and arsenic are environmental pollutants that accumulate in ecosystems and pose significant health risks to humans and wildlife, primarily through food chain contamination where plants absorb heavy metals ...
Basma Hossam Abdelmonem, Lereen T. Kamal, Rana M. Elbaz, Mohamed R. Khalifa, Anwar Abdelnaser   +4 more
doaj   +1 more source

Determination of Selenium Species in Tea by High Performance Liquid Chromatography Coupled to Atomic Fluorescence Spectrometry [PDF]

Shipin Kexue
Objective: This study explored experimental methods for selenium speciation analysis using high performance liquid chromatography coupled to atomic fluorescence spectrometry (HPLC-AFS) under different conditions, with the aim of identifying optimal ...
ZHANG Wenjun, CUI Yue, WANG Xuyang
doaj   +1 more source

Determination of Trace Gold in Geochemical Samples by Flame Atomic Fluorescence Spectrometry with PUFP Separation and Enrichment

Yankuang ceshi, 2020
BACKGROUND The detection sensitivity, stability, and linear range of Au using flame atomic fluorescence spectrometry (FAFS) is comparable to the method of inductivity coupled plasma-mass spectrometry (ICP-MS).
SHEN Yu-min, LUO Zhi-ding, GUO Xiao-biao, WU Gang, WANG Chen-rong, FU Ai-rui, GAO Shu-lin, XIAO Fan   +7 more
doaj   +1 more source

X‐Functionality–Driven Photocatalytic Hydrogen Evolution in 2D 4‐X‐PEA2SnI4 Perovskites

Advanced Functional Materials, EarlyView.
We report a water‐based synthesis of 2D 4‐X‐PEA2SnI4 perovskite microcrystals with prominent photocatalytic (PC) activity for H2 production. The synergy between organic functionalization and HI‐derived iodide scavenges holes suppress octahedral distortion, and favor electron accumulation, enabling a PC H2 evolution ∼20 µmol·g−1 and long‐term stability ...
Taeyeon Kim, Gayoung Seo, Seong Yeon Park, Juwon Jang, Yunho Ahn, Samiksha Mukesh Jain, Samrat Das Adhikari, Harumi Correa‐Leiva, Ignacio Utreras‐Asenjo, Oscar A. Douglas‐Gallardo, Carina Pareja‐Rivera, Kayoung Cho, Byeongsung Kim, Jhonatan Rodriguez‐Pereira, Eunseo Choi, JaeHong Park, Jin Ho Bang, Danilo H. Jara‐Quinteros, Sixto Giménez, Seog Joon Yoon, Andrés F. Gualdrón‐Reyes, Iván Mora‐Seró   +21 more
wiley   +1 more source

Conformational Switching of Proteins on Material Surfaces Enabled by Peptide‐Oriented Adsorption

Advanced Functional Materials, EarlyView.
Responsive biointerfaces could be achieved using conformationally responsive proteins; however, their interconversion can be lost upon surface adsorption. Herein, we demonstrate that the incorporation a Au binding peptide into calmodulin allows for binding control on Au wherein the protein retains conformational switching. This capability was confirmed
Sakthirupini Ramamurthy, Kyle B. Meerbott, Lorenzo Travaglini, Garima S. Dobhal, Artur Sawicki, Marc R. Knecht, Tiffany R. Walsh, Dominic J. Glover   +7 more
wiley   +1 more source