Results 121 to 130 of about 46,911 (243)

AuPd Bimetallic Nanocrystals Embedded in Magnetic Halloysite Nanotubes: Facile Synthesis and Catalytic Reduction of Nitroaromatic Compounds

Nanomaterials, 2017
In this research, a facile and effective approach was developed for the preparation of well-designed AuPd alloyed catalysts supported on magnetic halloysite nanotubes (HNTs@Fe3O4@AuPd).
Lei Jia, Tao Zhou, Jun Xu, Fenghai Li, Zhouqing Xu, Beibei Zhang, Shengli Guo, Xiaoke Shen, Wensheng Zhang   +8 more
doaj   +1 more source

Exploring the Effects of Different Classroom Environments on the Learning Process. Synthesis of Thiazole-Linked Porous Organic Polymers for CO2 Separation and Nitro-Aromatics Sensing. [PDF]

, 2017
When attempting to study the learning process of undergraduate chemistry student, the classroom and any interaction that take place within it constitute the social context of interest.
D\u27Urbino, Davide
core   +1 more source

Preimaginal development of Aedes aegypti L. (Diptera: Culicidae) in brackish water gives rise to adult mosquitoes with thicker cuticles and greater insecticide resistance

Medical and Veterinary Entomology, EarlyView.
The principal arboviral vector Aedes aegypti can develop in coastal brackish water field habitats (0.5–15 g/L salt) with larvae possessing thicker cuticles and greater resistance to the larvicide Temephos. Females emerging from brackish water‐developing preimaginal stages are now shown to have thicker and remodelled leg and abdominal cuticles and ...
Kokila Sivabalakrishnan, Andrew Hemphill, S. H. P. Parakrama Karunaratne, Arunasalam Naguleswaran, Isabel Roditi, Sinnathamby N. Surendran, Ranjan Ramasamy   +6 more
wiley   +1 more source

Electrocatalytic C─N Coupling in Aqueous Solutions for High‐Value Product Synthesis

Angewandte Chemie, Volume 138, Issue 14, 27 March 2026.
Electrocatalytic C–N coupling offers a sustainable route to synthesize crucial organic nitrogen compounds from abundant feedstocks under mild conditions. This review examines recent progress in overcoming key challenges, like slow kinetics and competing reactions through advanced catalysts and novel mechanisms, paving the way for transforming chemical ...
Yunpeng Zuo, Dongxue Yu, Xiaoran Zhang, Xin Wang   +3 more
wiley   +2 more sources

Late transition metal complexes bearing chitosan-2,6-pyridine dicarbamide as an intrinsic heterogeneous catalytic converter of 4-nitrophenol

Next Materials
The quest for biopolymeric-based heterogeneous catalysts is rapidly increasing owing to added intrinsic recompense. In this study, Chitosan-2, 6-pyridine dicarbamide (CPDC) ligand, and its metal ion complexes [M-CPDC] were synthesized by direct ...
Lateefah Olanike Adebayo, Samuel Adeolu Olugbemi, Anike Adebayo, Olubunmi Kolawole Akiode, Moriam Dasola Adeoye, Onome Ejeromedoghene, Sheriff Adewuyi   +6 more
doaj   +1 more source

Enhanced Catalytic Reduction of 4-Nitrophenol Driven by Fe3O4-Au Magnetic Nanocomposite Interface Engineering: From Facile Preparation to Recyclable Application

Nanomaterials, 2018
In this work, we report the enhanced catalytic reduction of 4-nitrophenol driven by Fe3O4-Au magnetic nanocomposite interface engineering. A facile solvothermal method is employed for Fe3O4 hollow microspheres and Fe3O4-Au magnetic nanocomposite ...
Yue Chen, Yuanyuan Zhang, Qiangwei Kou, Yang Liu, Donglai Han, Dandan Wang, Yantao Sun, Yongjun Zhang, Yaxin Wang, Ziyang Lu, Lei Chen, Jinghai Yang, Scott Guozhong Xing   +12 more
doaj   +1 more source

Cultural methods of detection for microorganisms: recent advances and successes [PDF]

, 1997
Most microbiological methods require culture to allow organisms to recover or to selectively increase, and target organisms are identified by growth on specific agar media.
Jian, X., Watkins , J.
core  

A Scalable and Resource‐Saving Synthesis of Dipyrromethanes and Tetrapyrroles via Geminal Diethers: Minimal Polymer Formation and Facile Purification

Advanced Synthesis &Catalysis, Volume 368, Issue 7, 1 April 2026.
Geminal dimethoxyethers react with pyrrolic nucleophiles in an efficient and clean reaction under anhydrous, mild conditions, which contrasts with the reactivity of the respective carbonyl compounds. Polymerization is effectively inhibited, providing access to dipyrromethanes, porphyrins, and calix[4]pyrroles that are easily purified.
Janos Wasternack, Clara Schritt, Luca Steiner, Ole Specht, Friedrich Braune, Marius Balizs, Sebastian Müller, Anja Wiesner, Beate Paulus, Siegfried Eigler, Christoph A. Schalley   +10 more
wiley   +1 more source

Investigation of Metal and Organic Contaminant Distributions and Sedimentation Rates in Backwater Lakes along the Illinois River [PDF]

, 2008
Systematic sub-sampling of sediment cores in sections of uniform thickness is necessary in order to evaluate historic changes in sediment quality, to determine the vertical extent of contamination, and to measure sedimentation rates.
Cahill, Richard A., Salmon, Gary L., Slowikowski, James A.   +2 more
core  

Catalysis of Aldol Reactions with External Electric Fields in Microfluidic Capacitors: Formation of Organocatalytic Electric Double Layers with Prolinol Ethers and Nitrophenols

ChemistryEurope, Volume 4, Issue 4, April 2026.
Electric‐field catalysis in microfluidic capacitors applied to Hayashi–Jørgenson‐type chemistry reveals mechanisms that operate with field‐directed ion‐pair generation, ion‐pair separation and templated assembly of charged monomers into supramolecular 2D polymers. They are orthogonal to proline chemistry and may serve as guidelines for the discovery of
Shen‐Yi Guo, Stefan Matile
wiley   +1 more source