1
|
Yang H, Tu C, Hao Y, Li Y, Wang J, Yang J, Zhang L, Zhang Y, Yu J. Near-infrared light-driven lab-on-paper cathodic photoelectrochemical aptasensing for di(2-ethylhexyl)phthalate based on AgInS 2/Cu 2O/FeOOH photocathode. Talanta 2024; 276:126193. [PMID: 38735244 DOI: 10.1016/j.talanta.2024.126193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 03/08/2024] [Accepted: 04/30/2024] [Indexed: 05/14/2024]
Abstract
Di(2-ethylhexyl)phthalate (DEHP) is commonly released from plastics in aqueous environment, which can disrupt endocrine system and cause adverse effects on public health. There is a pressing need to highly sensitive detect DEHP. Herein, a near-infrared (NIR) light-driven lab-on-paper cathodic photoelectrochemical aptasensing platform integrated with AgInS2/Cu2O/FeOOH photocathode and "Y"-like ternary conjugated DNA nanostructure-mediated "ON-OFF" catalytic switching of hemin monomer-to-dimer was established for ultrasensitive DEHP detection. Profiting from the collaborative roles of the effective photosensitization of NIR-response AgInS2 and the fast hole extraction of FeOOH, the NIR light-activated AgInS2/Cu2O/FeOOH photocathode generated a markedly enhanced photocathodic signal. The dual hemin-labelled "Y"-like ternary conjugated DNA nanostructures made the hemin monomers separated in space and they maintained highly active to catalyze in situ generation of electron acceptors (O2). The hemin monomers were relocated in close proximity with the help of target-induced allosteric change of DNA nanostructures, which could spontaneously dimerize into catalytically inactive hemin dimers and fail to mediate electron acceptors generation, resulting in a decreased photocathodic signal. Therefore, the ultrasensitive DEHP detection was realized with a linear response range of 1 pM-500 nM and a detection limit of 0.39 pM. This work rendered a promising prototype to construct powerful paper-based photocathodic aptasensing system for sensitive and accurate screening of DEHP in aqueous environment.
Collapse
Affiliation(s)
- Hongmei Yang
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, PR China; State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan, 250353, PR China
| | - Chuanyi Tu
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, PR China
| | - Yuxin Hao
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, PR China
| | - Yuheng Li
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, PR China
| | - Jing Wang
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, PR China
| | - Jiajie Yang
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, PR China
| | - Lina Zhang
- Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials, University of Jinan, Jinan, 250022, PR China
| | - Yan Zhang
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, PR China.
| | - Jinghua Yu
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, PR China.
| |
Collapse
|
2
|
Majdoub M, Sengottuvelu D, Nouranian S, Al-Ostaz A. Graphitic Carbon Nitride Quantum Dots (g-C 3N 4 QDs): From Chemistry to Applications. CHEMSUSCHEM 2024; 17:e202301462. [PMID: 38433108 DOI: 10.1002/cssc.202301462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 02/23/2024] [Accepted: 02/26/2024] [Indexed: 03/05/2024]
Abstract
Since their emergence in 2014, graphitic carbon nitride quantum dots (g-C3N4 QDs) have attracted much interest from the scientific community due to their distinctive physicochemical features, including structural, morphological, electrochemical, and optoelectronic properties. Owing to their desirable characteristics, such as non-zero band gap, ability to be chemically functionalized or doped, possessing tunable properties, outstanding dispersibility in different media, and biocompatibility, g-C3N4 QDs have shown promise for photocatalysis, energy devices, sensing, bioimaging, solar cells, optoelectronics, among other applications. As these fields are rapidly evolving, it is very strenuous to pinpoint the emerging challenges of the g-C3N4 QDs development and application during the last decade, mainly due to the lack of critical reviews of the innovations in the g-C3N4 QDs synthesis pathways and domains of application. Herein, an extensive survey is conducted on the g-C3N4 QDs synthesis, characterization, and applications. Scenarios for the future development of g-C3N4 QDs and their potential applications are highlighted and discussed in detail. The provided critical section suggests a myriad of opportunities for g-C3N4 QDs, especially for their synthesis and functionalization, where a combination of eco-friendly/single step synthesis and chemical modification may be used to prepare g-C3N4 QDs with, for example, enhanced photoluminescence and production yields.
Collapse
Affiliation(s)
- Mohammed Majdoub
- Center for Graphene Research and Innovation, University of Mississippi, University, MS 38677, United States
| | - Dineshkumar Sengottuvelu
- Center for Graphene Research and Innovation, University of Mississippi, University, MS 38677, United States
| | - Sasan Nouranian
- Center for Graphene Research and Innovation, University of Mississippi, University, MS 38677, United States
- Department of Chemical Engineering, University of Mississippi, University, MS 38677, United States
| | - Ahmed Al-Ostaz
- Center for Graphene Research and Innovation, University of Mississippi, University, MS 38677, United States
- Department of Civil Engineering, University of Mississippi, University, MS 38677, United States
| |
Collapse
|
3
|
Liu Y, Zhang X, Wang Q, Song Y, Xu T. Colorimetric detection of electrolyte ions in blood based on biphasic microdroplet extraction. Anal Chim Acta 2024; 1308:342661. [PMID: 38740461 DOI: 10.1016/j.aca.2024.342661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Revised: 04/21/2024] [Accepted: 04/26/2024] [Indexed: 05/16/2024]
Abstract
BACKGROUND Timely diagnosis and prevention of diseases require rapid and sensitive detection of biomarkers from blood samples without external interference. Abnormal electrolyte ion levels in the blood are closely linked to various physiological disorders, including hypertension. Therefore, accurate, interference-free, and precise measurement of electrolyte ion concentrations in the blood is particularly important. RESULTS In this work, a colorimetric sensor based on a biphasic microdroplet extraction is proposed for the detection of electrolyte ions in the blood. This sensor employs mini-pillar arrays to facilitate contact between adjacent blood microdroplets and organic microdroplets serving as sensing phases, with any color changes being monitored through a smartphone's colorimetric software. The sensor is highly resistant to interference and does not require pre-treatment of the blood samples. Remarkably, the sensor exhibits exceptional reliability and stability, allowing for rapid enrichment and detection of K+, Na+, and Cl- in the blood within 10 s (Cl-), 15 s (K+) and 40 s (Na+) respectively. SIGNIFICANCE The colorimetric sensor based on biphasic microdroplet extraction offers portability due to its compact size and ease of operation without the need for large instruments. Additionally, it is location-independent, making it a promising tool for real-time biomarker detection in body fluids such as blood.
Collapse
Affiliation(s)
- Yibiao Liu
- Longgang Central Hospital of Shenzhen, Shenzhen, 518116, PR China
| | - Xiaonan Zhang
- The Institute for Advanced Study (IAS), Shenzhen University, Shenzhen, Guangdong, 518060, PR China
| | - Qinliang Wang
- The Institute for Advanced Study (IAS), Shenzhen University, Shenzhen, Guangdong, 518060, PR China
| | - Yongchao Song
- College of Textile & Clothing, Qingdao University, Qingdao, Shandong, 266071, PR China
| | - Tailin Xu
- The Institute for Advanced Study (IAS), Shenzhen University, Shenzhen, Guangdong, 518060, PR China.
| |
Collapse
|
4
|
Gao W, Bai Y, Wang X, Fu H, Zhao P, Zhu P, Yu J. Self-standing perylene diimide covalent organic framework membranes for trace TMA sensing at room temperature. J Colloid Interface Sci 2024; 663:262-269. [PMID: 38401446 DOI: 10.1016/j.jcis.2024.02.145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 02/14/2024] [Accepted: 02/19/2024] [Indexed: 02/26/2024]
Abstract
The unprecedented demand for highly selective, real-time monitoring and low-power gas sensors used in food quality control has been driven by the increasing popularity of the Internet of Things (IoT). Herein, the self-standing perylene diimide based covalent organic framework membranes (COFMPDI-THSTZ) were prepared via liquid-liquid interfacial synthesis method. By incorporating the perylene diimide monomer into the COFM through molecular engineering, COFMPDI-THSTZ based sensor demonstrated an outstanding trimethylamine (TMA)-sensing performance at room temperature. Benefited from the TMA-accessible self-standing membrane morphology, π-electron delocalization effect, and extensive surface area with continuous nanochannels, the specific and highly sensitive TMA measurement has been achieved within the range of 0.03-400 ppm, with an exceptional theoretical detection limit as low as 10 ppb. Moreover, the primary internal mechanism of COFMPDI-THSTZ for this efficient TMA detection was investigated through in-situ FT-IR spectra, thereby directly elucidating that the chemisorption interaction of oxygen modulated the depletion layers on sensing material surface, resulting in alterations in sensor resistance upon exposure to the target gas. For practical usage, COFMPDI-THSTZ based sensor exhibited exceptional real-time in-situ sensing capabilities, further confirmed their potential for application in dynamic prediction evaluation of marine fish products and quality monitoring in IoT.
Collapse
Affiliation(s)
- Wenqing Gao
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| | - Yujiao Bai
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| | - Xinlei Wang
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| | - Hongyu Fu
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| | - Peini Zhao
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| | - Peihua Zhu
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China.
| | - Jinghua Yu
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China.
| |
Collapse
|
5
|
Zhang L, Wang K, Zhou F, Bu Y, Yang X, Nie G. A label-free photoelectrochemical biosensor for silver ions based on Zn-Co doped C and CdS QD nanomaterials. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:3202-3208. [PMID: 38742397 DOI: 10.1039/d4ay00547c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
A sensitive photoelectrochemical (PEC) biosensor for silver ions (Ag+) was developed based on Zn-Co doped C and CdS quantum dot (CdS QD) nanomaterials. Hydrophobic modified sodium alginate (HMA), which could stabilize and improve the PEC performance of CdS QDs, was also used for the construction of PEC sensors. Especially, Zn-Co doped C, CdS QDs and HMA were sequentially modified onto an electrode surface via the drop-coating method, and a C base rich DNA strand was then immobilized onto the modified electrode. As the C base in DNA specifically recognized Ag+, it formed a C-Ag+-C complex in the presence of Ag+, which created a spatial steric hindrance, resulting in a reduced PEC response. The sensing platform is sensitive to Ag+ in the range of 10.0 fM to 0.10 μM, with a limit of detection of 3.99 fM. This work offers an ideal platform to determine trace heavy metal ions in environmental monitoring and bioanalysis.
Collapse
Affiliation(s)
- Lu Zhang
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China.
| | - Kun Wang
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China.
| | - Feng Zhou
- The Eighth People's Hospital of Qingdao, China
| | - Yuwei Bu
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China.
| | - Xiaoyan Yang
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China.
| | - Guangming Nie
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China.
| |
Collapse
|
6
|
Zhou J, Huang H, Wang Q, Li Z, Chen S, Yu J, Zhong Y, Chen J, Huang H. Extended-Gate FET Biosensor Based on GaN Micropillar Array and Polycrystalline Layer: Application to Hg 2+ Detection in Human Urine. Anal Chem 2024; 96:7577-7584. [PMID: 38696338 DOI: 10.1021/acs.analchem.4c00435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/04/2024]
Abstract
Owing to the separation of field-effect transistor (FET) devices from sensing environments, extended-gate FET (EGFET) biosensor features high stability and low cost. Herein, a highly sensitive EGFET biosensor based on a GaN micropillar array and polycrystalline layer (GMP) was fabricated, which was prepared by using simple one-step low-temperature MOCVD growth. In order to improve the sensitivity and detection limit of EGFET biosensor, the surface area and the electrical conductivity of extended-gate electrode can be increased by the micropillar array and the polycrystalline layer, respectively. The designed GMP-EGFET biosensor was modified with l-cysteine and applied for Hg2+ detection with a low limit of detection (LOD) of 1 ng/L, a high sensitivity of -16.3 mV/lg(μg/L) and a wide linear range (1 ng/L-24.5 μg/L). In addition, the detection of Hg2+ in human urine was realized with an LOD of 10 ng/L, which was more than 30 times lower than that of reported sensors. To our knowledge, it is the first time that GMP was used as extended-gate of EGFET biosensor.
Collapse
Affiliation(s)
- Jialing Zhou
- School of Biomedical Engineering, Faculty of Medicine, Dalian University of Technology, Dalian 116024, China
- School of Control Science and Engineering, Dalian University of Technology, Dalian 116024, China
| | - Hui Huang
- School of Control Science and Engineering, Dalian University of Technology, Dalian 116024, China
| | - Qian Wang
- School of Control Science and Engineering, Dalian University of Technology, Dalian 116024, China
| | - Zhirui Li
- School of Control Science and Engineering, Dalian University of Technology, Dalian 116024, China
| | - Shunji Chen
- School of Control Science and Engineering, Dalian University of Technology, Dalian 116024, China
| | - Jun Yu
- School of Biomedical Engineering, Faculty of Medicine, Dalian University of Technology, Dalian 116024, China
| | - Yuan Zhong
- Center for Advanced Measurement Science, National Institute of PR Metrology, Beijing 100029, China
| | - Jing Chen
- Electrical & Electronic Experimental Center, Dalian University of Technology, Dalian 116024, China
| | - Huolin Huang
- School of Optoelectronic Engineering and Instrument Science, Dalian University of Technology, Dalian 116024, China
| |
Collapse
|
7
|
Yang M, Wang J, Xue X, Jiang H. Colorimetric detection of Hg 2+ based on the enhanced oxidase-mimic activity of CuO/Au@Cu 3(BTC) 2 triggered by Hg 2. RSC Adv 2024; 14:13808-13816. [PMID: 38681841 PMCID: PMC11046446 DOI: 10.1039/d4ra01953a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Accepted: 04/17/2024] [Indexed: 05/01/2024] Open
Abstract
It is imperative to develop a rapid detection method for Hg2+ due to its harm to human health and the ecological environment. In this research, CuO/Au@Cu3(BTC)2 was synthesized through reducing HAuCl4 by CuxO@Cu3(BTC)2, which was obtained by reducing Cu3(BTC)2 with hydrazine hydrate. The oxidase-mimic activity of CuO/Au@Cu3(BTC)2 can be enhanced by Hg2+ through forming a Au-Hg alloy. Therefore, a colorimetric method was designed for Hg2+ detection with a linear relationship in the 0.05-25 μM range and a limit of detection of 9.7 nM. This strategy exhibited a strong selectivity to Hg2+ and was applied in a real water sample with reliable recoveries. This work provides a possibility for the rapid detection of Hg2+.
Collapse
Affiliation(s)
- Min Yang
- School of Pharmacy, Anhui University of Chinese Medicine Hefei 230012 China
| | - Jian Wang
- School of Chemistry and Chemical Engineering, Shandong University Jinan 250100 China
| | - Xuan Xue
- School of Pharmacy, Anhui University of Chinese Medicine Hefei 230012 China
| | - Hechun Jiang
- State Key Laboratory of Crystal Materials and Institute of Crystal Materials, Shandong University Jinan 250100 China
| |
Collapse
|
8
|
Chen H, Li Y, Wang Z, Wang D, Feng L, Li S, Wu C, Wang H. A selective colorimetric and efficient removal strategy for mercury(II) in aquatic systems using mesoporous Fe 3O 4-loaded silver probes. Analyst 2024; 149:1784-1790. [PMID: 38380690 DOI: 10.1039/d4an00052h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2024]
Abstract
Mesoporous Fe3O4-loaded silver nanocomposites (Fe3O4@Ag) were simply fabricated as bi-functional nanozymes for the catalysis-based detection and removal of Hg2+ ions. It was found that the as-prepared magnetic Fe3O4@Ag could display peroxidase-like catalysis activity that could be rationally enhanced in the presence of Hg2+ ions. To our surprise, the shell of the Ag element may decrease the catalysis of the Fe3O4 to some degree. However, the Ag particles could serve as the probes for specifically recognizing Hg2+ ions and trigger increased catalysis through the formation of Ag-Hg alloys, with a decreased signal background. A high-throughput colorimetric analytical method was thereby developed based on the Fe3O4@Ag catalysis for probing Hg2+ ions in the muscles of fish by using 96-well plates, at linear Hg2+ concentrations ranging from 0.010 to 2.5 mg kg-1. Moreover, the developed colorimetric analytical method was applied to evaluate Hg2+ levels in muscle samples of different kinds of fish. Unexpectedly, an obvious difference of Hg2+ levels in muscles of four kinds of fish was discovered, with the order of snakehead (Ophicephalus argus) > largemouth bass (Micropterus salmoides) > crucian carp (Carassius auratus) > silver carp (Hypophthalmichthys molitrix), where the carnivorous fish showed higher Hg2+ levels than the omnivorous or plant-based ones. Moreover, the as-fabricated Fe3O4@Ag adsorbents with their large specific surface area and high environmental robustness could exhibit efficient Hg2+ adsorption with capacities of up to 397.60 mg g-1. A removal efficiency of 99.40% can also be expected for Hg2+ ions from wastewater, with the magnet-aided recycling of Fe3O4@Ag adsorbents. Such an Fe3O4@Ag-based colorimetric analysis and removal strategy for Hg2+ ions should find wide applications in the fields of aquatic food safety, environmental monitoring, and clinical diagnostics of Hg-poisoning diseases.
Collapse
Affiliation(s)
- Huilan Chen
- Huzhou Key Laboratory of Medical and Environmental Application Technologies, School of Life Sciences, Huzhou University, Zhejiang 313000, P.R. China.
| | - Yunyan Li
- Huzhou Key Laboratory of Medical and Environmental Application Technologies, School of Life Sciences, Huzhou University, Zhejiang 313000, P.R. China.
| | - Ziyi Wang
- Huzhou Key Laboratory of Medical and Environmental Application Technologies, School of Life Sciences, Huzhou University, Zhejiang 313000, P.R. China.
| | - Di Wang
- Huzhou Key Laboratory of Medical and Environmental Application Technologies, School of Life Sciences, Huzhou University, Zhejiang 313000, P.R. China.
| | - Luping Feng
- Huzhou Key Laboratory of Medical and Environmental Application Technologies, School of Life Sciences, Huzhou University, Zhejiang 313000, P.R. China.
| | - Shuai Li
- Huzhou Key Laboratory of Medical and Environmental Application Technologies, School of Life Sciences, Huzhou University, Zhejiang 313000, P.R. China.
| | - Choufei Wu
- Huzhou Key Laboratory of Medical and Environmental Application Technologies, School of Life Sciences, Huzhou University, Zhejiang 313000, P.R. China.
| | - Hua Wang
- Huzhou Key Laboratory of Medical and Environmental Application Technologies, School of Life Sciences, Huzhou University, Zhejiang 313000, P.R. China.
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, Key Laboratory of Green Chemical Media and Reactions, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, P.R. China
| |
Collapse
|
9
|
Sehrish A, Manzoor R, Lu Y. Ultrathin porous PdCu metallenezymes as oxidase mimics for colorimetric analysis. Mikrochim Acta 2023; 191:13. [PMID: 38081983 DOI: 10.1007/s00604-023-06102-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 11/14/2023] [Indexed: 12/18/2023]
Abstract
Ultrathin porous and highly curved two-dimensional PdCu alloy metallene are shown to be highly efficient oxidase mimics. Serving as intrinsic oxidase mimic, the ultrathin porous structure of the PdCu metallenezymes could effectively utilize all the Pd atoms of the metallenezymes during catalytic reactions. By using the oxidation capability of 3,3'5,5'-tetramethylbenzidine as distinctive chromogenic substrate, the PdCu metallenezymes was used as oxidase-like mimics for determination of total antioxidant capacity (TAC) of vitamin C containing real products including fresh orange juice, commercial beverages, Vitamin C tablets and dermo-cosmetic products. AAP was hydrolyzed using ALP to generate AA and the corresponding ALP activity was successfully detected in the 0-100 U/L range with a lowest detection limit of 0.9 U/L. This study demonstrates the significant catalytic performance and oxidase-like activity of PdCu metallene nanozyme providing a strategy to develop a TAC assay for the assessment of antioxidant food quality as well as oxidative stress in skin and health care products.
Collapse
Affiliation(s)
- Aniqa Sehrish
- School of Materials Science and Engineering, University of Jinan, Jinan, 250022, China
| | - Romana Manzoor
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, China
| | - Yizhong Lu
- School of Materials Science and Engineering, University of Jinan, Jinan, 250022, China.
| |
Collapse
|
10
|
Ren X, Chen J, Wang C, Wu D, Ma H, Wei Q, Ju H. Photoelectrochemical Sensor with a Z-Scheme Fe 2O 3/CdS Heterostructure for Sensitive Detection of Mercury Ions. Anal Chem 2023; 95:16943-16949. [PMID: 37944013 DOI: 10.1021/acs.analchem.3c03088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2023]
Abstract
Mercury (Hg2+) is a highly toxic element and can seriously affect human health. This work proposed a photoelectrochemical (PEC) sensor with a Z-scheme Fe2O3/CdS heterostructure and two thymine-rich DNA strands (DNA-1 and Au@DNA-2) for sensitive detection of Hg2+. The light excitation of the Fe2O3/CdS composite accelerated the electron transfer among Fe2O3, CdS, and the electrode to produce a stable photocurrent response. Upon the recognition of Hg2+ to thymine bases (T) in two DNA strands to form a stable T-Hg2+-T biomimetic structure, the photocurrent response increased with the increasing concentration of Hg2+ due to the opening of electronic transmission channels from Au nanoparticles to Fe2O3/CdS nanocomposite. Under the optimal conditions screened by the Box-Behnken experiments, the proposed PEC sensor showed excellent analytical performance for Hg2+ detection with high sensitivity, a detection limit of 0.20 pM at a signal-to-noise ratio of 3, high selectivity, a detectable concentration range of 1 pM-100 nM, and acceptable stability. The good recovery and low relative standard deviation for the analysis of Hg2+ in lake and tap water samples demonstrated the potential application of the designed Z-scheme Fe2O3/CdS heterostructure in the PEC detection of heavy metal ions.
Collapse
Affiliation(s)
- Xiang Ren
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China
| | - Jingui Chen
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China
| | - Chao Wang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China
| | - Dan Wu
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China
| | - Hongmin Ma
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China
| | - Qin Wei
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China
| | - Huangxian Ju
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China
| |
Collapse
|
11
|
Sehrish A, Manzoor R, Wu S, Lu Y. Ultrathin porous Pd metallene as highly efficient oxidase mimics for the colorimetric detection of chromium (VI). Anal Bioanal Chem 2023; 415:6063-6075. [PMID: 37522919 DOI: 10.1007/s00216-023-04879-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 07/19/2023] [Accepted: 07/20/2023] [Indexed: 08/01/2023]
Abstract
Palladium (Pd)-based nanomaterials are the emerging class of catalysts with individual physiochemical properties. Unlike traditional catalysts, metallenes showed abundant active sites, large surface area, and high atomic utilization. Based on these benefits, we demonstrate a highly active 2D graphene-like Pd metallene with abundant accessible active sites serving as a highly efficient oxidase mimic. The structure and morphology of Pd metallenezymes were controlled to enhance the catalytic performance and to efficiently utilize all the Pd atoms. Pd metallenezymes with excellent oxidase-like activity were successfully applied for colorimetric-based chromium (VI) (Cr(VI)) detection in a real environment. 3,3',5,5'-Tetramethylbenzidine (TMB) was used as a typical chromogenic substrate catalyzed by Pd metallene to show that blue oxidized TMB (ox TMB) was significantly reduced to colorless TMB by the reducing agent 8-hydroxyquinoline (8-HQ). The reaction process was impressively reversed by the addition of Cr(VI), which interacted with 8-HQ to restore the blue color of TMB. Based on the above results, a facile and effective colorimetric sensing system for the detection of Cr(VI) with a low detection limit of 2.8 nM was developed and could be successfully applied to the detection of Cr(VI) in a real environment.
Collapse
Affiliation(s)
- Aniqa Sehrish
- School of Materials Science and Engineering, University of Jinan, Jinan, 250022, China
| | - Romana Manzoor
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, China
| | - Shuzhi Wu
- Shandong Academy of Preventive Medicine, Shandong Center for Disease Control and Prevention, Jinan, 250014, China.
| | - Yizhong Lu
- School of Materials Science and Engineering, University of Jinan, Jinan, 250022, China.
| |
Collapse
|
12
|
Song Y, Xie R, Tian M, Mao B, Chai F. Controllable synthesis of bifunctional magnetic carbon dots for rapid fluorescent detection and reversible removal of Hg 2. JOURNAL OF HAZARDOUS MATERIALS 2023; 457:131683. [PMID: 37276695 DOI: 10.1016/j.jhazmat.2023.131683] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 04/30/2023] [Accepted: 05/21/2023] [Indexed: 06/07/2023]
Abstract
Mercury is one of the most toxic heavy metals, whose identification and separation are crucial for environmental remediation. Till now, it remains a significant challenge upon simultaneous detection and removal of Hg2+. Herein, bifunctional probe magnetic carbon dots were synthesized and optimized via systematic structure manipulation of the carbon and iron precursors towards fluorescence, Hg2+ adsorption and magnetic separation. The probe exhibited blue emission at 440 nm with high quantum yield of 55 % and a high paramagnetism with the saturation magnetization value of 22.70 emu/g. Furthermore, the fluorescent detection of Hg2+ with limit of 5.40 nM and high selectivity were achieved through surface structure manipulation with moderate -NH2, -SH and Fe contents. As a result, the magnetic removal of Hg2+ was consecutively effectuated with high removal efficiency of 98.30 %. The detection and recovery of Hg2+ in real samples were further verified and demonstrated the excellent environmental tolerance of probe. The reusability was viable with recycling at least three turns by external magnet. This work not only provides a promising approach for simultaneous detection and removal of heavy metal pollution, but also provides an excellent example as a versatile platform for multifunction integration via the structure manipulation for other applications.
Collapse
Affiliation(s)
- Ying Song
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, College of Chemistry and Chemical Engineering, Harbin Normal University, Harbin 150025, China; Key Laboratory of Photochemical Biomaterials and Energy Storage Materials, Heilongjiang Province, Ministry of Education, College of Chemistry and Chemical Engineering, Harbin Normal University, Harbin 150025, China
| | - Ruyan Xie
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, College of Chemistry and Chemical Engineering, Harbin Normal University, Harbin 150025, China; Key Laboratory of Photochemical Biomaterials and Energy Storage Materials, Heilongjiang Province, Ministry of Education, College of Chemistry and Chemical Engineering, Harbin Normal University, Harbin 150025, China
| | - Miaomiao Tian
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, College of Chemistry and Chemical Engineering, Harbin Normal University, Harbin 150025, China; Key Laboratory of Photochemical Biomaterials and Energy Storage Materials, Heilongjiang Province, Ministry of Education, College of Chemistry and Chemical Engineering, Harbin Normal University, Harbin 150025, China
| | - Baodong Mao
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China.
| | - Fang Chai
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, College of Chemistry and Chemical Engineering, Harbin Normal University, Harbin 150025, China; Key Laboratory of Photochemical Biomaterials and Energy Storage Materials, Heilongjiang Province, Ministry of Education, College of Chemistry and Chemical Engineering, Harbin Normal University, Harbin 150025, China.
| |
Collapse
|
13
|
Kang G, Zhao D, Wang H, Liu F, Wang T, Chen C, Lu Y. Malathion detection based on polydopamine enhanced oxidase-mimetic activity of palladium nanocubes. Talanta 2023; 262:124730. [PMID: 37245431 DOI: 10.1016/j.talanta.2023.124730] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 05/08/2023] [Accepted: 05/23/2023] [Indexed: 05/30/2023]
Abstract
Nowadays, fabricating simple and efficient pesticide detection methods become a research focus due to the great threat pesticide residues posed to human health and environment. Herein, we constructed a high-efficiency and sensitive colorimetric detection platform for malathion detection based on polydopamine-dressed Pd nanocubes (PDA-Pd/NCs). The Pd/NCs coated with PDA exhibited excellent oxidase-like activity, which was attributed to the substrates accumulation and accelerated electron transfer induced by PDA. What's more, we successfully achieved sensitive detection of acid phosphatase (ACP) using 3,3',5,5'-tetramethylbenzidine (TMB) as the chromogenic substrate, relying on the satisfactory oxidase activity from PDA-Pd/NCs. However, the addition of malathion could inhibit the activity of ACP and limit the production of medium AA. Therefore, we constructed a colorimetric assay for malathion based on PDA-Pd/NCs + TMB + ACP system. The wide linear range (0-8 μM) and low detection limit (0.023 μM) indicate excellent analytical performance, which is superior to most malathion analysis methods previously reported. This work not only provides a new idea for dopamine coated nano-enzyme to improve its catalytic activity, but also creates a new tactics for the detection of pesticides such as malathion.
Collapse
Affiliation(s)
- Ge Kang
- School of Materials Science and Engineering, University of Jinan, Jinan, Shandong, 250022, China
| | - Dan Zhao
- School of Environmental Engineering and Chemistry, Luoyang Institute of Science and Technology, Luoyang, Henan 471023, China.
| | - Hao Wang
- School of Materials Science and Engineering, University of Jinan, Jinan, Shandong, 250022, China
| | - Fangning Liu
- School of Materials Science and Engineering, University of Jinan, Jinan, Shandong, 250022, China
| | - Tingting Wang
- School of Materials Science and Engineering, University of Jinan, Jinan, Shandong, 250022, China
| | - Chuanxia Chen
- School of Materials Science and Engineering, University of Jinan, Jinan, Shandong, 250022, China.
| | - Yizhong Lu
- School of Materials Science and Engineering, University of Jinan, Jinan, Shandong, 250022, China.
| |
Collapse
|
14
|
Goren AY, Recepoglu YK, Vatanpour V, Yoon Y, Khataee A. Insights into engineered graphitic carbon nitride quantum dots for hazardous contaminants degradation in wastewater. ENVIRONMENTAL RESEARCH 2023; 223:115408. [PMID: 36740151 DOI: 10.1016/j.envres.2023.115408] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Revised: 01/07/2023] [Accepted: 01/31/2023] [Indexed: 06/18/2023]
Abstract
Increased environmental pollution is a critical issue that must be addressed. Photocatalytic, adsorption, and membrane filtration methods are suitable in environmental governance because of their high selectivity, low cost, environment-friendly nature, and excellent treatment efficiency. Graphitic carbon nitride (g-C3N4) quantum dots (QDs) have been considered as photocatalysts, adsorbents, and membrane materials for wastewater treatments, owing to their stability, adsorption capacity, photochemical properties, and low toxicity and cost. This review summarizes g-C3N4 QD synthesis techniques, operating parameters affecting the removal performance in the treatment process, modification effects with other semiconductors, and benefits and drawbacks of g-C3N4 QD-based materials. Furthermore, this review discusses the practical applications of g-C3N4 QDs as adsorbents, photocatalysts, and membrane materials for organic and inorganic contaminant treatments and their value-added product formation potential. Modified g-C3N4 QD-based material adsorbents, photocatalysts, and membranes present potentially applicable effects, such as removal of most waterborne contaminants. Excellent results were obtained for the reduction of methyl orange, bisphenol A, tetracycline, ciprofloxacin, phenol, rhodamine B, E. coli, and Hg. Overall, this paper provides comprehensive background on g-C3N4 QD-based materials and their diverse applications in wastewater treatment, and it presents a foundation for the enhancement of similar unique materials in the future.
Collapse
Affiliation(s)
- A Yagmur Goren
- Department of Environmental Engineering, Izmir Institute of Technology, 35430, Urla, Izmir, Turkey
| | - Yasar K Recepoglu
- Department of Chemical Engineering, Izmir Institute of Technology, 35430, Urla, Izmir, Turkey
| | - Vahid Vatanpour
- Department of Applied Chemistry, Faculty of Chemistry, Kharazmi University, 15719-14911, Tehran, Iran; Department of Environmental Engineering, Istanbul Technical University, 34469, Istanbul, Turkey
| | - Yeojoon Yoon
- Department of Environmental and Energy Engineering, Yonsei University, 1, Yonseidae-gil, Wonju-si, 26493, Gangwon-do, Republic of Korea.
| | - Alireza Khataee
- Department of Environmental Engineering, Gebze Technical University, 41400, Gebze, Turkey; Research Laboratory of Advanced Water and Wastewater Treatment Processes, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, 51666-16471, Tabriz, Iran.
| |
Collapse
|
15
|
Duan W, Wang J, Peng X, Cao S, Shang J, Qiu Z, Lu X, Zeng J. Rational design of trimetallic AgPt-Fe 3O 4 nanozyme for catalyst poisoning-mediated CO colorimetric detection. Biosens Bioelectron 2023; 223:115022. [PMID: 36563527 DOI: 10.1016/j.bios.2022.115022] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 12/12/2022] [Accepted: 12/15/2022] [Indexed: 12/23/2022]
Abstract
Carbon monoxide (CO) is not only a highly poisonous gas that brings great health risk, but also a significant signaling molecule in body. However, it is still challengeable for development of alternative colorimetric probes to traditional organic chromophores for simple, sensitive and convenient CO sensing. Here, for the first time, we rationally design a novel hydrophilic AgPt-Fe3O4 nanozyme with a unique heterodimeric nanostructure for colorimetric sensing of CO based on the excellent peroxidase-like catalytic activity as well as highly poisonous effect of CO on the nanozyme's catalytic activity. Both experimental evidence and theoretical calculations reveal the trimetallic AgPt-Fe3O4 nanozyme is susceptible to poisoning with the strongest affinity towards CO compared to individual Fe3O4 or Ag-Fe3O4, which is attributed to the adequate exposure of the active metallic sites and efficient interfacial synergy of unique heterodimeric nanostructure. Accordingly, a novel nanozyme-based colorimetric strategy is developed for CO detection with a low detection limit of 5.6 ppb in solution. Furthermore, the probe can be prepared as very convenient test strips and integrated with the portable smartphone platforms for detecting CO gas samples with a low detection limit of 8.9 ppm. Overall, our work proposes guidelines for the rational design of metallic heterogeneous nanostructure to expand the analytical application of nanozyme.
Collapse
Affiliation(s)
- Wei Duan
- College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao, 266580, PR China; Institute of Analytical Chemistry, Department of Chemistry, Zhejiang University, Hangzhou, 310058, PR China
| | - Jinling Wang
- College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao, 266580, PR China
| | - Xiaomeng Peng
- China Tobacco Anhui Industrial Co, Ltd, Anhui, 230031, PR China
| | - Shoufu Cao
- School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao, 266580, PR China
| | - Jingjing Shang
- Tobacco Quality Supervision and Test Station of Anhui, Anhui, 230071, PR China
| | - Zhiwei Qiu
- College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao, 266580, PR China
| | - Xiaoqing Lu
- School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao, 266580, PR China
| | - Jingbin Zeng
- College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao, 266580, PR China.
| |
Collapse
|
16
|
El-Reash YGA, Ghaith EA, El-Awady O, Algethami FK, Lin H, Abdelrahman EA, Awad FS. Highly fluorescent hydroxyl groups functionalized graphitic carbon nitride for ultrasensitive and selective determination of mercury ions in water and fish samples. J Anal Sci Technol 2023. [DOI: 10.1186/s40543-023-00379-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023] Open
Abstract
AbstractHeavy metal ion pollution is always a serious problem worldwide. Therefore, monitoring heavy metal ions in environmental water is a crucial and difficult step to ensure the safety of people and the environment. A mercury ion (Hg2+) fluorescence probe with excellent sensitivity and selectivity is described here. The functionalized graphitic carbon nitride nanosheets (T/G-C3N4) fluorescence probe was fabricated using melamine as a precursor by the pyrolysis technique, followed by a rapid KOH heat treatment method for 2 min. The chemical structure and morphology of the T/G-C3N4 probe were characterized using multiple analytical techniques including UV–Vis, SEM, XPS, XRD, and fluorometer spectroscopy. Geometry optimization of T/G-C3N4 as a modified probe was performed to assess its stability and interaction ability with Hg(II) via using the density function approach. The T/G-C3N4 probe showed a linear response based on quenching over the range 0–1.25 × 103 nM Hg(II); the detection limit was 27 nM. The remarkable sensitivity of T/G-C3N4 towards the Hg2+ ions was explained by the intense coordination and fast chelation kinetics of Hg2+ with the NH2, CN, C=N, and OH groups of T/G-C3N4 nanoprobe. The T/G-C3N4 probe demonstrates exceptional selectivity for Hg2+ ions among other metal ions including (Na+, Ag+, Mg2+, Fe2+, Fe3+, Co2+, Ni2+, Cd2+, K+, Ca2+, Cu2+, Pb2+, Mn2+ and Hg2+) and over a broad pH range (6–10), together with remarkable long-term fluorescence stability in water (> 30 days) and minimal toxicity. T/G-C3N4 was used to detect and quantify Hg2+ ions in tuna and mackerel fish and the results compared to ICP-AES. The results obtained offer a new simple and green technique for the design of multifunctional fluorescent probe appropriate for environmental applications.
Graphical Abstract
Collapse
|
17
|
Pavithra KG, SundarRajan P, Kumar PS, Rangasamy G. Mercury sources, contaminations, mercury cycle, detection and treatment techniques: A review. CHEMOSPHERE 2023; 312:137314. [PMID: 36410499 DOI: 10.1016/j.chemosphere.2022.137314] [Citation(s) in RCA: 25] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 11/01/2022] [Accepted: 11/17/2022] [Indexed: 06/16/2023]
Abstract
Mercury is considered a toxic pollutant harmful to our human health and the environment. Mercury is highly persistent, volatile and bioaccumulated and enters into the food chain, destroying our ecosystem. The levels of mercury in the water bodies as well as in the atmosphere are affected by anthropogenic and natural activities. In this review, the mercury species as well as the mercury contamination towards water, soil and air are discussed in detail. In addition to that, the sources of mercury and the mercury cycle in the aquatic system are also discussed. The determination of mercury with various methods such as with modified electrodes and nanomaterials was elaborated in brief. The treatment in the removal of mercury such as adsorption, electrooxidation and photocatalysis were explained with recent ideologies and among them, adsorption was considered one of the efficient techniques in terms of cost and mercury removal.
Collapse
Affiliation(s)
- K Grace Pavithra
- Department of Environmental and Water Resource Engineering, Saveetha School of Engineering, Chennai, 602 105, Tamil Nadu, India
| | - P SundarRajan
- Department of Chemical Engineering, Saveetha Engineering College, Chennai, 602 105, Tamil Nadu, India
| | - P Senthil Kumar
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, 603 110, Tamil Nadu, India; Centre of Excellence in Water Research (CEWAR) Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, 603 110, Tamil Nadu, India; School of Engineering, Lebanese American University, Byblos, Lebanon.
| | - Gayathri Rangasamy
- School of Engineering, Lebanese American University, Byblos, Lebanon; University Centre for Research and Development & Department of Civil Engineering, Chandigarh University, Gharuan, Mohali, Punjab, 140413, India
| |
Collapse
|
18
|
Yang X, Feng M, Zhang X, Huang Y. Co,N,S co-doped hollow carbon with efficient oxidase-like activity for the detection of Hg2+ and Fe3+ ions. Microchem J 2023. [DOI: 10.1016/j.microc.2023.108383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
|
19
|
Liu Q, Xu C, Chu S, Li S, Wang F, Si Y, Mao G, Wu C, Wang H. Covalent organic framework-loaded silver nanoparticles as robust mimetic oxidase for highly sensitive and selective colorimetric detection of mercury in blood. J Mater Chem B 2022; 10:10075-10082. [PMID: 36458484 DOI: 10.1039/d2tb01887j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Covalent organic frameworks (COFs) were fabricated with a hierarchical flower-like hollow structure, possessing a large specific surface area, high porosity, and excellent environmental stability. In situ growth of noble silver nanoparticles (AgNPs) onto COFs was conducted yielding COF-Ag nanozymes. The structural advantages of COFs can ensure the uniform dispersion and effective size control of AgNPs. More interestingly, the oxidase-like catalytic activity of the obtained COF-Ag nanozymes could be enhanced in the presence of Hg2+ ions, which could specifically interact with AgNPs to form Ag-Hg alloys. A COF-Ag catalysis-based colorimetric platform was thereby constructed for highly selective and sensitive analysis of Hg2+ ions, showing a linear concentration range from 0.050 to 10.0 μM, with a limit of detection of about 3.7 nM. Besides, the developed colorimetric strategy was successfully applied for detecting Hg2+ ions in human blood with favorable detection recoveries, indicating its potential for applications in the biomedical analysis, environmental monitoring, and food safety fields.
Collapse
Affiliation(s)
- Qingqing Liu
- Huzhou Key Laboratory of Medical and Environmental Applications Technologies, School of Life Sciences, Huzhou University, Huzhou City, Zhejiang Province 313000, P. R. China. .,College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, P. R. China
| | - Chenchen Xu
- College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, P. R. China
| | - Su Chu
- College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, P. R. China
| | - Shuai Li
- Huzhou Key Laboratory of Medical and Environmental Applications Technologies, School of Life Sciences, Huzhou University, Huzhou City, Zhejiang Province 313000, P. R. China.
| | - Fengxiang Wang
- College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, P. R. China
| | - Yanmei Si
- College of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang, 330063, P. R. China
| | - Guojiang Mao
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan, 453007, P. R. China
| | - Choufei Wu
- Huzhou Key Laboratory of Medical and Environmental Applications Technologies, School of Life Sciences, Huzhou University, Huzhou City, Zhejiang Province 313000, P. R. China.
| | - Hua Wang
- Huzhou Key Laboratory of Medical and Environmental Applications Technologies, School of Life Sciences, Huzhou University, Huzhou City, Zhejiang Province 313000, P. R. China. .,College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, P. R. China
| |
Collapse
|
20
|
Li M, Wu Y, An S, Yan Z. Au NP-Decorated g-C 3N 4-Based Photoelectochemical Biosensor for Sensitive Mercury Ions Analysis. ACS OMEGA 2022; 7:19622-19630. [PMID: 35721978 PMCID: PMC9202297 DOI: 10.1021/acsomega.2c01335] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Accepted: 05/06/2022] [Indexed: 06/15/2023]
Abstract
Herein, an efficient and feasible photoelectrochemical (PEC) biosensor based on gold nanoparticle-decorated graphitic-like carbon nitride (Au NPs@g-C3N4) with excellent photoelectric performance was designed for the highly sensitive detection of mercury ions (Hg2+) . The proposed Au NPs@g-C3N4 was first modified on the surface of the electrode, which possessed a remarkable photocurrent conversion efficiency and could produce a strong initial photocurrent. Then, the thymine-rich DNA (S1) was immobilized on the surface of the modified electrode via Au-N bonds. Subsequently, 1-hexanethiol (HT) was added to the resultant electrode to block nonspecific binding sites. Finally, the target Hg2+ was incubated on the surface of the modified glassy carbon electrode (GCE). In the presence of target Hg2+, the thymine-Hg2+-thymine (T-Hg2+-T) structure formed due to the selective capture capability of thymine base pairs toward Hg2+, resulting in the significantly decrease of the photocurrent. Thereafter, the proposed PEC biosensor was successfully used for sensitive Hg2+ detection, as it possessed a wide linear range from 1 pM to 1000 nM with a low detection limit of 0.33 pM. Importantly, this study demonstrates a new method of detecting Hg2+ and provides a promising platform for the detection of other heavy metal ions of interest.
Collapse
Affiliation(s)
- Mengjie Li
- School
of Civil Engineering and Architecture, Chongqing
University of Science and Technology, Chongqing 401331, China
- Institute
for Health and Environment, Chongqing University
of Science and Technology, Chongqing 401331, PR China
| | - Ying Wu
- School
of Civil Engineering and Architecture, Chongqing
University of Science and Technology, Chongqing 401331, China
- Institute
for Health and Environment, Chongqing University
of Science and Technology, Chongqing 401331, PR China
| | - Siyu An
- School
of Civil Engineering and Architecture, Chongqing
University of Science and Technology, Chongqing 401331, China
- Institute
for Health and Environment, Chongqing University
of Science and Technology, Chongqing 401331, PR China
| | - Zhitao Yan
- School
of Civil Engineering and Architecture, Chongqing
University of Science and Technology, Chongqing 401331, China
- Institute
for Health and Environment, Chongqing University
of Science and Technology, Chongqing 401331, PR China
| |
Collapse
|
21
|
Zhang Y, Zhang Y, Qu R, Geng X, Kong X, Sun C, Ji C, Wang Y. Ag-coordinated self-assembly of aramid nanofiber-silver nanoparticle composite beads for selective mercury removal. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.120147] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
22
|
Wu X, Chen Y, Cao W, Yang G. Ratiometric fluorescent sensor based on 2D MOF nanosheets modified by DNA for sensitive detection of Hg 2. NANOTECHNOLOGY 2021; 32:505501. [PMID: 34488211 DOI: 10.1088/1361-6528/ac23f5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 09/06/2021] [Indexed: 06/13/2023]
Abstract
Mercury is highly toxic and can accumulate throughout the food cycle, leading to water contamination and foodstuffs pollution. Therefore, increasing attention has been paid to explore effective detection of Hg2+. Here, we report a sensitive Hg2+sensor based on single-stranded DNA (ssDNA) modified two-dimensional (2D) MOF nanosheets by a ratiometric fluorescent method. The chosen 2D MOF nanosheets possess intrinsic peroxidase-like catalytic ability, ssDNA adsorption and fluorescence quenching. We demonstrate that the adsorption of ssDNA can significantly improve the peroxidase mimetic activity of 2D MOF nanosheets, enhancing the fluorescence of substrate Amplex Red. Taking advantages of the favorable characteristics above, we fabricate an efficient Hg2+sensor. In the presence of Hg2+, the ssDNA is released from 2D MOF nanosheets, which results in a decreasing of peroxidase mimetic activity of 2D MOF nanosheets and a fluorescence enhancement of attached fluorophore. A linear relationship between ratiometric fluorescence of substrate and fluorophore and Hg2+concentrations is obtained. The detection limit is 5 nM, which is much lower than the maximal contamination level in drinking water (30 nM) by Word Health Organization. These findings show 2D MOF based ratiometric fluorescent sensor is a convenient and efficient strategy to detect Hg2+.
Collapse
Affiliation(s)
- Xiaoju Wu
- State Key Laboratory of Optoelectronic Materials and Technologies, Nanotechnology Research Center, School of Materials Science & Engineering, School of Physics, Sun Yat-sen University, Guangzhou 510275, Guangdong, People's Republic of China
| | - Yuan Chen
- State Key Laboratory of Optoelectronic Materials and Technologies, Nanotechnology Research Center, School of Materials Science & Engineering, School of Physics, Sun Yat-sen University, Guangzhou 510275, Guangdong, People's Republic of China
| | - Weiwei Cao
- State Key Laboratory of Optoelectronic Materials and Technologies, Nanotechnology Research Center, School of Materials Science & Engineering, School of Physics, Sun Yat-sen University, Guangzhou 510275, Guangdong, People's Republic of China
| | - Guowei Yang
- State Key Laboratory of Optoelectronic Materials and Technologies, Nanotechnology Research Center, School of Materials Science & Engineering, School of Physics, Sun Yat-sen University, Guangzhou 510275, Guangdong, People's Republic of China
| |
Collapse
|
23
|
Maity R, Dutta A, Halder S, Shannigrahi S, Mandal K, Sinha TP. Enhanced photocatalytic activity, transport properties and electronic structure of Mn doped GdFeO 3 synthesized using the sol-gel process. Phys Chem Chem Phys 2021; 23:16060-16076. [PMID: 34291256 DOI: 10.1039/d1cp00621e] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work we have synthesized Mn doped GdFeO3 nano-particles using a green and facile sol gel method and studied their photocatalytic, optical, vibrational and electrical properties. The Rietveld refinement of the XRD profiles suggests that all the materials have an orthorhombic Pbnm crystal structure. The transmission electron microscope (TEM) images show the decrease of the average particle size from 140 to 80 nm with the Mn concentration. The high crystallinity of the synthesized particles is confirmed from the HR-TEM images. Raman spectrum is employed to investigate the phonon modes of the materials. The optical band gap of the materials is obtained from the UV-vis reflectance spectroscopy (DRS) using Tauc relation which indicates the reduction of the band gap from 2.18 to 1.72 eV with Mn-doping. The photocatalytic activity of the materials is studied by the photocatalytic degradation of rhodamine B (Rh-B) in aqueous solution under visible light illumination. The substitution of Mn at the Fe site introduces an extra electronic state between the conduction band and the valence band which reduces the electronic band gap and enhances the Rh-B degradation efficiency. A 30% Mn doping at the Fe site (GFMO3) provides an optimum space charge width which assists to attain the maximum rate of degradation of the Rh-B dye. The doping of Mn3+ reduces the photogenerated electron and hole recombination rate and hence more charge carriers take part in the redox reaction which facilitates the photo-catalytic efficiency in GFMO3. The degradation rate enhances by a factor of 2.5 for GFMO3 as compared to pure GdFeO3. The highest photocurrent density of 1.31 μA cm-2 of GFMO3 with respect to other materials promotes the separation and transfer of the photo generated charge carriers. The possible photocatalytic mechanism of the Mn doped GdFeO3 is also critically discussed. Alternating current impedance spectroscopy is used to study the electrical properties of the synthesized materials. The increase in the conductivity with the Mn concentration is explained on the basis of the band gap reduction and this is consistent with the Smit and Wijn theory. Magnetic measurement is performed to measure the magnetization strength which is useful to separate the photocatalyst by simply using a magnet. The temperature dependent magnetization measurement suggests the anti-ferromagnetic (AFM) behaviour of the studied materials with the decrease of Néel temperature (TN) with Mn concentration. The XPS study reveals the presence of multiple oxidation states of Fe(2+/3+) and Mn(4+/3+) in these materials which facilitates the conductivity as well as the oxidation/reduction efficiency at the surface of the catalyst. The band gap reduction and its effect on the enhancement of the photocatalytic degradation efficiency with Mn doping are also discussed from the density of states calculations. Thus, this study describes a promising approach for the organic pollutant degradation by designing an efficient and stable perovskite photocatalyst.
Collapse
Affiliation(s)
- Ritwik Maity
- Department of Physics, Bose Institute, 93/1, Acharya Prafulla Chandra Road, Kolkata 700 009, India
| | | | | | | | | | | |
Collapse
|