Results 61 to 70 of about 709,591 (301)

UiO‐66 metal–organic frameworks in biomedicine: From structural tunability to bioimaging, photodiagnostics, and photodynamic cancer therapy

FEBS Open Bio, EarlyView.
UiO‐66(Zr) metal–organic frameworks are chemically stable, biocompatible, and highly tunable nanomaterials. Their modular structure enables controlled drug delivery, multimodal bioimaging, and light‐activated photodynamic therapy, supporting integrated diagnostic and therapeutic (theranostic) applications in cancer and biomedical research.
Veronika Huntošová, Grigorii Rakhalskii, Miroslav Almáši   +2 more
wiley   +1 more source

Distribution, speciation, bioavailability, risk assessment, and limit standards of heavy metals in Chinese herbal medicines

Pharmacological Research - Modern Chinese Medicine, 2023
Introduction: There are increasing concerns on the safety of traditional Chinese medicine (TCM) worldwide. Chinese herbal medicine (CHM), an important type of TCM, may be contaminated by exogenous harmful substances, including heavy metals during ...
Tian-Tian Zuo, Yao-Lei Li, Ying Wang, Yuan-Sheng Guo, Ming-Rui Shen, Jian-Dong Yu, Jing Li, Hong-Yu Jin, Feng Wei, Shuang-Cheng Ma   +9 more
doaj   +1 more source

Evolution of the First Supernovae in Protogalaxies: Dynamics of Mixing of Heavy Elements

, 2012
The paper considers the evolution of the supernova envelopes produced by Population III stars with masses of $M_*\sim 25-200 M_\odot$ located in non-rotating protogalaxies with masses of $M\sim 10^7 M_\odot$ at redshifts $z=12$, with dark-matter density ...
Matvienko, E. E., Razoumov, A. O., Shchekinov, Yu. A., Vasiliev, E. O., Vorobyov, E. I.   +4 more
core   +1 more source

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur, Faruk Kaya, Bora Derin, Mustafa Lütfi Öveçoğlu, Ju Li, Duygu Ağaoğulları   +5 more
wiley   +1 more source

Comparative evaluation of QuEChERS and the ‘dilute and shoot’ QuPPe extraction methods coupled with LC-MS/MS for the analysis of mepiquat residue in sweet potatoes: addressing residual soil impact on recovery efficiency

Scientific Reports
Mepiquat (MPQ) is a quaternary ammonium salt widely used as a growth regulator in agriculture. A recent report from the European Union Reference Laboratory for Single Residue Methods (EURL SRM) reported MPQ residues in Egyptian sweet potatoes at levels ...
Mohamed Wageed, Hend A. Mahmoud, M. I. Abdel-Megeed, Ramadan Sayed, Hassan A. El-Gammal, Mostafa Soliman   +5 more
doaj   +1 more source

Radical TTM-DMODPA for Ascorbic Acid Non-Catalytic Visual Detection

Chemosensors
Ascorbic acid (AA) plays a multidimensional role in human physiological and pathological processes, and the detection of its urinary concentration facilitates the diagnosis of metabolic or kidney diseases.
Qingmei Zhong, Huixiang Zong, Xiaohui Xie, Xiaomei Rong, Chuan Yan   +4 more
doaj   +1 more source

SIDEROPHORES FOR SELECTIVE SOLID PHASE EXTRACTION OF STRATEGIC ELEMENTS [PDF]

, 2018
All over the world, industrial mining is leaving contaminated areas and dumps that, although being full of valuable metals, have high concentrations of toxic heavy metals that pollute the environment.
Bravo, Arturo, Humeres, Manuel-Jose, Levican, Gloria, Retamal-Morales, Gerardo, Schlömann, Michael, Schwabe, Ringo, Tischler, Dirk, Wiche, Oliver   +7 more
core  

Xenobiotic biotransformation potential of Pseudomonas rhodesiae KCM-R5 and Bacillus subtilis KCM-RG5, tolerant to heavy metals and phenol derivatives [PDF]

, 2006
Two environmental bacterial isolates KCM-R5 and KCM-RG5 were selected from xenobiotic-polluted environment. KCM-R5 was identified as Pseudomonas rhodesiae and KCM-RG5 as Bacillus subtilis.
Golovinsky, Evgeny, Ivanov, Ivailo, Satchanska, Galina, Topalova, Yana   +3 more
core   +1 more source

Revisiting Stability Criteria in Ball‐Milled High‐Entropy Alloys: Do Hume–Rothery and Thermodynamic Rules Equally Apply?

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
The stability criteria affecting the formation of high‐entropy alloys, particularly focusing in supersaturated solid solutions produced by mechanical alloying, are analyzed. Criteria based on Hume–Rothery rules are distinguished from those derived from thermodynamic relations. The formers are generally applicable to mechanically alloyed samples.
Javier S. Blázquez, Alejandro F. Manchón‐Gordón, Antonio Vidal‐Crespo, Rafael Caballero‐Flores, Jhon J. Ipus, Clara F. Conde   +5 more
wiley   +1 more source

Health risk assessment of Sudan dyes, toxic elements, and pesticide residues in Egyptian spices

Scientific Reports
Sudan dyes, toxic elements, and pesticide residues in spices pose potential health risks through long-term exposure, emphasizing the need for regular monitoring. This study evaluated their occurrence and toxicological impact in 80 spice samples collected
Mahmoud M. Ghuniem, Hoda M. Refai, Khaled Rabie   +2 more
doaj   +1 more source