دورية أكاديمية
Fast synthesis of Hcy-modified Au nanoclusters under microwave-assisted irradiation and their response to Cu (II) ions
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 |
تدمد: | 20550324 20550332 |
---|---|
DOI: | 10.1080/20550324.2023.2251203 |