Ye Shuai, Zhang Mingming, Guo Jiaqing, Song Jun, Zeng Pengju, Qu Junle, Chen Yue, Li Hao
Center for Biomedical Optics and Photonics (CBOP) & College of Physics and Optoelectronic Engineering, Key Lab of Optoelectronics Devices and Systems of Ministry of Education/Guangdong Province, Shenzhen University, Shenzhen 518060, China.
National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), 115409 Moscow, Russia.
Nanomaterials (Basel). 2022 Apr 27;12(9):1487. doi: 10.3390/nano12091487.
Carbon dots (CDs), a class of fluorescent nanomaterials, have attracted widespread attention from researchers. Because of their unique chemical properties, these high-quality fluorescent probes are widely used for ion and molecule detection. Excess intake of many ions or molecules can cause harm to the human body. Although iron (in the form of Fe ions) is essential for the human body, excess iron in the human body can cause many diseases, such as iron poisoning. In this study, we have synthesized fluorine and nitrogen co-doped carbon dots (FNCDs) by a hydrothermal method. These FNCDs exhibited good stability, selectivity, and anti-interference ability for Fe. Fe could be detected in the range of 0.2-300 μM, and their detection limit is up to 0.08 μM. In addition, the recovery and relative standard deviation measured by the standard addition recovery method were not higher than 107.5% and 1.1%, respectively, indicating that FNCDs have good recovery and accuracy for Fe detection.
碳点（CDs）是一类荧光纳米材料，已引起研究人员的广泛关注。由于其独特的化学性质，这些高质量的荧光探针被广泛用于离子和分子检测。许多离子或分子的过量摄入会对人体造成伤害。虽然铁（以铁离子的形式）对人体至关重要，但人体中过量的铁会引发多种疾病，如铁中毒。在本研究中，我们通过水热法合成了氟氮共掺杂碳点（FNCDs）。这些FNCDs对铁表现出良好的稳定性、选择性和抗干扰能力。铁的检测范围为0.2 - 300 μM，其检测限高达0.08 μM。此外，通过标准加入回收法测得的回收率和相对标准偏差分别不高于107.5%和1.1%，表明FNCDs对铁的检测具有良好的回收率和准确性。
