Article
Chemistry, Applied
Jian-Peng Hu, Qi Lin, Hong Yao, You-Ming Zhang, Tai-Bao Wei
Summary: A colorimetric and fluorometric sensor (RA) has been developed using a simple Schiff base reaction, which enables effective and simultaneous detection of multimetal ions. It shows ultra-sensitive detection limit for heavy metal mercury ions.
APPLIED ORGANOMETALLIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Guona Li, Lvcheng Liu, Xiaoying Liu, Junshan Han, Tingting Hao, Chucheng Wang, Jiawei Sun, Hengfeng Du, Xing Li
Summary: A new method for the visual and rapid colorimetric detection of Hg2+ using gold nanoparticle modified with ALN is proposed. The method shows good anti-interference and selectivity, and can quantitatively determine the concentration of Hg2+ in cosmetics. It has practical application for monitoring heavy metal mercury in cosmetics.
Article
Chemistry, Analytical
Dehong Bai, Ziyu Xue, Peiqing Guo, Mingzhu Qiu, Xuefang Lei, Yujin Li, Chengjie Ma, Dongxia Zhang, Xibin Zhou
Summary: A colorimetric method for the determination of Hg2+ has been proposed in this study, based on the aggregation of Glutathione-modified gold nanoflowers (GSH-Au NFs) induced by the analyte and their activated peroxidase-mimicking activity. The method shows a wide linear range and a low detection limit, making it highly sensitive for the detection of Hg2+ and of great value in environmental monitoring.
MICROCHEMICAL JOURNAL
(2022)
Article
Chemistry, Physical
Serkan Erdemir, Sait Malkondu
Summary: A novel probe RHI was designed and synthesized for sensitive and specific sensing of metal ions, showing potential for biological and environmental applications.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Spectroscopy
Bahar Yilmaz, Mukaddes Keskinates, Mevlut Bayrakci
Summary: In this study, three novel and facile calixarene derivatives appended with rhodamine units were prepared for selectively detecting metal ions, particularly exhibiting high efficiency and reliability in turning on fluorescence output towards Hg2+ ions. In addition, in vitro and bio-imaging studies showed that the receptors were cell permeable and suitable for real-time imaging of Hg2+ without causing damage to healthy cell lines.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Article
Biochemical Research Methods
Xiumei Li, Xue Li, Heng Zhao, Huimin Kang, Congbin Fan, Gang Liu, Shouzhi Pu
Summary: A novel chemosensor 1O was successfully synthesized and characterized, showing high selectivity for Hg2+ and significant colorimetric and fluorescent responses. The sensor exhibited excellent photochromism and fatigue resistance, with low detection limits for Hg2+. Its potential application in qualitative detection of Hg2+ in real water samples was demonstrated.
JOURNAL OF FLUORESCENCE
(2021)
Article
Chemistry, Physical
Hayriye Nevin Genc, Ozlem Guctekin Yasar, Sukriye Nihan Karuk Elmas, Fatma Nur Arslan, Ibrahim Yilmaz, Abdulkadir Sirit
Summary: We fabricated a new rhodamine-based switch-on fluorescent and colorimetric chemosensor (RHEN) for the determination of Hg2+. The RHEN showed a noticeable colorimetric response for the presence of Hg2+, changing from colorless to pink under daylight. The fluorescence intensity of RHEN was remarkably enhanced and the color changed to dusty rose under UV light when exposed to Hg2+. The RHEN exhibited excellent sensitivity, specificity, and selectivity for Hg2+ detection, with a low detection limit of 0.11 μm. The binding phenomenon between RHEN and Hg2+ was identified using various spectroscopic techniques. Moreover, RHEN was successfully applied for Hg2+ detection in fish samples, as well as for test-paper and cotton swab applications. Smartphone application demonstrated that RHEN can serve as a powerful tool for on-site sensing of Hg2+ without the need for complicated devices.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2023)
Article
Engineering, Environmental
Xueyan Liu, Zhuo Chen, Rongsheng Gao, Chengyou Kan, Jianhong Xu
Summary: Technological advances have enabled the development of a portable and simplified colorimetric method for Fe3+ sensing using a smartphone as a detector. The study successfully prepared a fluorescent and colorimetric sensor for Fe3+ using rhodamine-grafted cellulose filter paper, and developed a smartphone app for convenient and on-site quantitative detection of Fe3+ in environmental water.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Environmental
Monisha, Kamlesh Shrivas, Tushar Kant, Sanyukta Patel, Rama Devi, Nohar Singh Dahariya, Shamsh Pervez, Manas Kanti Deb, Manish K. Rai, Joyce Rai
Summary: In this study, an inkjet-printed paper-based colorimetric sensor was developed for on-site determination of mercuric ion using a smartphone and color detector app. The sensor showed advantages of simplicity, rapid detection, cost-effectiveness, wide linear range, and low detection limit for determination of Hg2+ at sample sources. The results were validated against inductively coupled plasma-atomic emission spectroscopy (ICP-AES) measurements.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Jiaojiao Zhou, Weijia Zhu, Xuqin Lv, Xiaoping Du, Jiangling He, Jie Cai
Summary: In this study, dendritic silica nanospheres (DSN) with central-radial porous structures were synthesized and Au and Pt nanoparticles were immobilized into their pores. The AuPt@DSN exhibited superior peroxidase-like activity and specificity towards Hg2+, and was efficiently used for the visual detection of Hg2+. The strategy showed potential for mercury evaluation in environmental samples.
ACS APPLIED NANO MATERIALS
(2022)
Article
Spectroscopy
Mintu Thakur, Kingkar Ghosh, Prasun Choudhury, Abdul Ashik Khan, Sandip Mondal, Narendra Nath Ghosh, Kinkar Biswas
Summary: In this study, a computational approach was used to design sensor molecules for the selective recognition of Cu2+ and Fe3+ ions. The chemosensing properties of seven rhodamine B hydrazide-based Schiff base derivatives were analyzed theoretically in ethanol solution. Theoretical calculations showed that the selective recognition of Cu2+ and Fe3+ ions occurred through spirolactam ring-opening, and ortho substituents and N-heteroatoms played a pivotal role. The two best chemosensors were synthesized and utilized for the colorimetric detection of Cu2+ and Fe3+ ions.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Chemistry, Multidisciplinary
Huifang Li, Yiru Tang, Kunrong Shen, Ji Lu, Zhijie Zhang, Dong Yi, Na Hao, Qiang Fu, Zi Ye, Jun Wei, Jun Wang, Xianchao Pan, Siping Wei, Lin Yang
Summary: Four benzoindolenine-based squaraine dyes with intense visible and near-infrared absorption and emission were synthesized and characterized. Among them, BBSQ showed excellent performance, exhibiting high selectivity to Fe3+, Cu2+, and Hg2+ in acetonitrile solution even in the presence of other competitive metal ions, easily detected by the naked eye. The detection limit was 14.17 μM for Fe3+ and 6.06 μM for Cu2+. BBSQ's response mechanism to Fe3+, Cu2+, and Hg2+ involves the coordination of BBSQ and metal ions through specific atoms. BBSQ was also successfully applied to detect Fe3+, Cu2+, and Hg2+ in thin-layer chromatography plates.
Article
Chemistry, Physical
Jiawen Dai, Liwei Wang, Fuang Xu, Guangran Ma
Summary: A nanocomposite of AuNPs decorated on Fe-doped MoS2 was prepared for colorimetric-electrochemical (C-E) coupled detection of Hg2+. The nanocomposite exhibited high sensitivity and selectivity for Hg2+ detection.
Article
Chemistry, Multidisciplinary
Sundas Jamil, Muhammad Nasir, Yaqeen Ali, Sohail Nadeem, Sidra Rashid, Muhammad Yaqoob Javed, Akhtar Hayat
Summary: A portable and biomimetic nanosensor modified with Cr2O3-TiO2 was designed for robust and colorimetric sensing of hydrogen peroxide. Utilizing a paper-based colorimetric platform, the sensor showed linear detection of H2O2 with excellent anti-interference potential.
Article
Chemistry, Multidisciplinary
Myung Gil Choi, Byung Hoon Yun, Hyeong Min Kim, Sangdoo Ahn, Suk-Kyu Chang
Summary: This research presents a simple and convenient method for urinary mercury analysis using an office scanner. The method showed selective detection of Hg2+ ions and exhibited good sensitivity and accuracy. It can be used for the diagnosis of clinically important neurological symptoms and fatal inorganic mercury levels.
