Results 61 to 70 of about 19,229 (196)

Preparation of 5-Bromo-2-naphthol: The Use of a Sulfonic Acid as a Protecting and Activating Group

Molbank, 2009
The preparation of 5-bromo-2-naphthol (4) in three steps from 5-amino-2-naphthol (1) is described. A sulfonic acid group is introduced at the 1-position as an activating and protecting group for the Sandmeyer reaction.
Christopher Abelt, Jillian Hamilton, Renata Everett   +2 more
doaj   +1 more source

Optimisation of Electrokinetic Extraction System: Colourimetric Determination of Copper (II) in Sand Using Polymer Inclusion Membrane

ELECTROPHORESIS, EarlyView.
Electrokinetic extraction (EKE) allows the direct transfer of heavy metals from soli samples, such as soil and sediment, into a polymer inclusion membrane (PIM) with a colourimetric detection. This avoids length and complex sampling handling and extraction processes.
Jia Jia Seet, Spas D. Kolev, Rosanne Guijt, Hong Heng See, Fernando Maya, Mostafa A. Atia, Eddie A. Nagul, Owen P. Missen, Michael Breadmore   +8 more
wiley   +1 more source

Tin‐based perovskite light‐emitting diodes: Progress and perspective

InfoScience, EarlyView.
This review assesses tin‐based perovskite light‐emitting diodes (PeLEDs), focusing on the limitations of Sn2+ oxidation–induced defects and uncontrolled crystallization. By evaluating advanced device engineering and structural innovations, this article highlights their viability in narrowband pure‐red displays and near‐infrared optical communication ...
Wenhao Bai, Tongtong Xuan, Guanhua Ren, Ting Gong, Kunjie Song, Jiaxin Duan, Huili Li, Rong‐Jun Xie   +7 more
wiley   +1 more source

White light emitting molecular logic gates

Smart Molecules, EarlyView.
White light emitting smart molecules with Boolean logic computing ability are surveyed. Abstract White light emitting (WLE) materials are of considerable interest with commercial and societal applications in video displays and lighting devices. A characteristic property of WLE materials is the luminescence profile spanning from 380 to 700 nm.
Davide Benedetto Tiz, Massimo Catania, David C. Magri   +2 more
wiley   +1 more source

Design, Synthesis and Antiviral Potential of 14-Aryl/Heteroaryl-14<em>H</em>-dibenzo<em>[a,j]</em>xanthenes Using an Efficient Polymer-Supported Catalyst

Molecules, 2012
Polyethyleneglycol bound sulfonic acid (PEG-OSO₃H), a chlorosulphonic acid-modified polyethylene glycol was successfully used as an efficient and eco-friendly polymeric catalyst in the synthesis of 14-aryl/heteroaryl-14<em>H ...
Ola Lasekan, Mungara Anil Kumar, Palanisamy Arulselvan, Shaik Ibrahim Khalivulla, Balam Satheesh Krishna, Kalla Reddi Mohan Naidu   +5 more
doaj   +1 more source

Revisiting small‐molecule fluorescent probes in food freshness detection

Smart Molecules, EarlyView.
Fluorescent probes serve as versatile tools for food freshness monitoring. This review summarizes recent advances in probes targeting biogenic amines, hydrogen sulfide, pH values, and other key spoilage markers, highlighting their design principles, sensing mechanisms, and practical applications in food quality monitoring. Abstract Food spoilage driven
Xinrui Wang, Zhao Wang, Jingwen Zou, Xuyuan Jiang, Changyu Bian, Zhiqiang Mao   +5 more
wiley   +1 more source

GMP‐compliant production, validation and dosimetry of clinical grade [18F]3‐(3‐fluoropropyl)‐2‐phenyl‐2,3‐dihydrobenzo[d]thiazole ([18F]FPBT) for oxidative stress PET imaging

British Journal of Pharmacology, EarlyView.
Background and Purpose Oxidative stress plays a critical role in the pathophysiology of various diseases, yet current methods for its non‐invasive detection remain limited. This study aimed to systematically validate a superoxide‐selective PET tracer, [18F]FPBT, for the early diagnosis and therapeutic monitoring of oxidative stress‐related conditions ...
Hua Zhang, Fangfang Sun, Chun Li, Xin Wang, Yuexuan Song, Lu Jiang, Paul Gape, Samantha Y. A. Terry, Shujun He, Ran Yan, Zhi Lu   +10 more
wiley   +1 more source

Isolation and Identification of Erysipelothrix sp. in Hybrid Grouper (Epinephelus fuscoguttatus × E. lanceolatus) in Taiwan

Journal of Fish Diseases, EarlyView.
ABSTRACT In February 2025, a mortality event of unknown aetiology occurred at a hybrid grouper (Epinephelus fuscoguttatus × Epinephelus lanceolatus) aquaculture farm in southern Taiwan, with sporadic daily deaths persisting for a month. Four moribund groupers were collected over three sampling intervals for diagnostic investigation.
Shang‐Ting Wu, Yu‐Siang Lin, Chia‐Yu Hsieh   +2 more
wiley   +1 more source

New Cyclic Voltammetry of 3-(4-N-Pyridine-2-yl Benzene Sulfonamide Azo)-1-Nitroso Naphthol and the Use of it for Enhancement of Cobalt Oxide Nano Particles

Nano Biomedicine and Engineering, 2017
The electrochemical behavior of the 3-(4-N-pyridine-2-yl benzene sulfonamide azo)-1-nitroso naphthol reagent and its complex with Co (Ⅱ) has been studied at glassy carbon disk electrode in different supporting electrolyte at concentration 1 mol and scan ...
Hussein Jasem Mohammed
doaj   +1 more source

Pharmacological Modulation of Nrf2 Signaling Regulates Oxidative Stress, Inflammation, and Alveolar Bone Loss in Experimental Periodontitis

Journal of Periodontal Research, EarlyView.
Pharmacological activation of Nrf2 attenuated alveolar bone loss and protected periodontal tissues by reducing inflammation and oxidative stress, preserving collagen organization, and favoring bone homeostasis. Reversal of these effects by Nrf2 inhibition further supports Nrf2 signaling as a promising therapeutic target in periodontitis.
Vitória Bonan Costa, Mariely Araújo de Godoi, Angelo Constantino Camilli, Isabela Rinaldi Gomes Nogueira, Veronica Canela Estevam dos Santos, Lucas Nogueira Ramos, Juliana Silva Siqueira, Camila Renata Corrêa Camacho, Morgana Rodrigues Guimarães Stabili   +8 more
wiley   +1 more source