Results 121 to 130 of about 1,703,225 (294)

The spectrophotometric determination of aluminum

, 2016
Метою даної роботи є вивчення взаємодії іонів Al(III) з натрієвою сіллю 4-нітробензоїлгідразону піровиноградної кислоти (4НБГПВ) та основним барвником пінавердолом (ПВ) з утворенням у водному розчині ЙА алюмінію, який придатний для його ...
Молнар, Д.І., Калинський, Є.С., Сухарева, Оксана Юріївна, Сухарев, Сергій Миколайович   +3 more
core  

Spectrophotometric determination of cefaclor in pharmaceutical preparations

, 1999
A simple spectrophotometric method is proposed for the determination of cefaclor. The method involves alkaline hydrolysis of the drug in ammonia buffer solution at pH 10 to yield diketopiperazine-2,5-dione derivative and subsequent measurement at 340 nm.
Rodrigues, Letícia N. C., Guaratini, Cláudia C. I., Viviane M. Ivama, Ivama, Viviane M. [UNESP], Maria Valnice B. Zanoni, Rodrigues, Letícia N. C. [UNESP], Zanoni, Maria Valnice Boldrin, Letícia N. C. Rodrigues, Ivama, Viviane M., Zanoni, Maria Valnice Boldrin [UNESP], Cláudia C. I. Guaratini, Guaratini, Cláudia C. I. [UNESP]   +11 more
core   +1 more source

B, N‐Co Doped Porous Carbon Nanotubes Supported Cu Single Atoms and B‐Doped Cu Nanoparticles for High‐Performance Electrocatalytic NO3RR and Zn‐Nitrate Batteries

Carbon Energy, EarlyView.
The ToC image shows a porous B, N‐doped carbon nanotube decorated with B‐doped Cu nanoparticles for nitrate‐to‐ammonia conversion. The unique structure enhances charge transport, promotes the adsorption and activation of key intermediates, alters the rate‐determining step, suppresses hydrogen evolution, and improves NH3 yield and Faradaic efficiency ...
Xiangding Li, Jiahui Xiang, Yilun Gao, Zhihao Liu, Haozhi Wang, Hua Yuan, Binbin Fan, Xiaoyu Huang   +7 more
wiley   +1 more source

The Impact of Glycation on Protein Digestibility

ChemFoodChem, EarlyView.
Schematic overview of how protein glycation affects digestibility and downstream nutritional consequences. Glycation‐derived structural modifications reduce protease accessibility, leading to limited hydrolysis and altered peptide generation. These changes decrease amino acid bioavailability and may subsequently contribute to microbiome alterations ...
Lea Hönemann, Simone Lipinski, Jana Raupbach   +2 more
wiley   +1 more source

Bismuth Chalcogenide‐Based Photocatalysts for Nitrogen Reduction: Recent Progress and Prospects

Chemistry – A European Journal, EarlyView.
Bismuth chalcogenides emerge as promising visible‐light photocatalysts for sustainable ammonia synthesis, driven by tunable electronic structures and strong N2 activation. Recent advances reveal how defects, doping and heterojunction design synergistically enhance charge separation and reactivity. Key challenges and future directions highlight pathways
Mukesh K. Verma, Muhammad D. Bala, Phindile B. Khoza, Tshephiso R. Papo, Mzamo L. Shozi   +4 more
wiley   +1 more source

Photoinduced ROS Production by Poly(3‐hexylthiophene) (P3HT) is due to Autoxidation Rather Than Catalysis

Chemistry – A European Journal, EarlyView.
P3HT is widely treated as a photocatalyst that generates ROS under light. We show otherwise: ROS production comes at the expense of the polymer itself. Photoexcited P3HT acts as a self‐sacrificial photosubstrate, undergoing irreversible autoxidation during light‐driven oxygen reduction—a distinction critical for interpreting its behavior in emerging ...
Roman Gańczarczyk, Renata Rybakiewicz‐Sekita, Eric D. Głowacki   +2 more
wiley   +1 more source

Spectrophotometric determination of favipiravir in presence of its acid hydrolysis product. [PDF]

BMC Chem, 2023
Sharaf YA, Abd El-Fattah MH, El-Sayed HM, Hegazy MA.   +3 more
europepmc   +1 more source

Fibrilpaint: A Class of Amyloid‐Targeting Peptides

Chemistry – A European Journal, EarlyView.
FibrilPaints are modular peptides engineered to recognize amyloid fibrils. By systematically varying charge, sequence, and termini, their binding behavior can be tuned while retaining recognition. Successful binding ″paints″ fibrils for visualization and opens routes toward targeted degradation and diagnostic applications.
Júlia Aragonès Pedrola, Françoise A. Dekker, Katrin Guttmann, Litske M. van Leeuwen, Shalini Singh, Guy Mayer, Tommaso Garfagnini, Assaf Friedler, Stefan G. D. Rüdiger   +8 more
wiley   +1 more source

High atmospheric pressure rescues plant growth under humidity stress: A model for climate‐resilient deep underground agriculture

Deep Underground Science and Engineering, EarlyView.
High atmospheric pressure (120 kPa) in deep underground counteracts humidity‐induced physiological stress in plants, stabilizing water balance and enhancing antioxidative defenses. This synergy boosts biomass despite elevated humidity, demonstrating sustainable deep underground agriculture potential under climate uncertainty.
Yuxin He, Linglu Xu, Xiao Tan, Wenhua Zhuang, Naiwen Li, Chao Liu, Bo Tan   +6 more
wiley   +1 more source

Flexible Phase Change Bandage Incorporated With Zeolite for Temperature‐Controlled Wound Hemostasis

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A novel flexible hemostatic phase change bandage (HPB) was designed and constructed through chemical cross‐linking and electrospinning to mitigate thermal injury and broaden the application of PCMs in the medical field. Furthermore, the flexible HPB shows thermal stability, strong mechanical strength, excellent infiltration, and reliable thermal ...
Xinyu Zhang, Keyan Sun, Hanqing Liu, Shihui Zhang, Yan Kou, Haocheng Fu, Zicheng Lu, Yongfei Zhao, Quan Shi   +8 more
wiley   +1 more source