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Fast synthesis of Hcy-modified Au nanoclusters under microwave-assisted irradiation and their response to Cu (II) ions

التفاصيل البيبلوغرافية
العنوان: Fast synthesis of Hcy-modified Au nanoclusters under microwave-assisted irradiation and their response to Cu (II) ions
المؤلفون: Yong Shen, Xin Wang, Yunfei Xia, Ping Li, Yinan Ding, Tian Luan, Kai Song
المصدر: Nanocomposites, Vol 9, Iss 1, Pp 68-79 (2023)
بيانات النشر: Taylor & Francis Group, 2023.
سنة النشر: 2023
المجموعة: LCC:Materials of engineering and construction. Mechanics of materials
مصطلحات موضوعية: HCy-modified AuNCs, Cu (II) optical sensing, emission quenching, LMNCT, Materials of engineering and construction. Mechanics of materials, TA401-492, Polymers and polymer manufacture, TP1080-1185
الوصف: AbstractIn this work, Cu (II) ion was chosen as an analyte because it is an important trace element in the human body to maintain organism health. AuNCs (gold nanoclusters) with a mean diameter of ∼2 nm were prepared by a microwave-assisted method, using homocysteine (Hcy) as a reducer and stabilizer. The optimal sample showed a red emission peaking at 624 nm with an emission quantum yield of 17.1%, which was assigned as a ligand to metal nanoparticle core charge transfer (LMNCT). This red emission was effectively quenched by Cu (II) but immune to competing metal cations and anions, showing good selectivity. The quenching mechanism was found as the Cu (II) quenching on the LMNCT procedure to AuNCs. The primary advantage of Hcy-modified AuNCs was the easy and quick synthetic procedure, along with acceptable sensing performance, including good selectivity, linear response, and wide working region.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 20550324
2055-0332
2055-0324
Relation: https://doaj.org/toc/2055-0324; https://doaj.org/toc/2055-0332
DOI: 10.1080/20550324.2023.2251203
URL الوصول: https://doaj.org/article/7e883d193c584735a7e3c51432a56039
رقم الأكسشن: edsdoj.7e883d193c584735a7e3c51432a56039
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:20550324
20550332
DOI:10.1080/20550324.2023.2251203