Article
Chemistry, Analytical
Jinyu Lin, Junchao Qian, Yaping Wang, Yue Yang, Yuxuan Zhang, Jianping Chen, Xingwang Chen, Zhigang Chen
Summary: The article introduces a novel and highly sensitive CeO2-Co3O4 QDs@porous carbon nanocomposite electrochemical sensor for detecting oxytetracycline in water samples. The experimental results show that the electrode exhibits excellent electrocatalytic performance and can effectively detect oxytetracycline.
MICROCHEMICAL JOURNAL
(2021)
Article
Engineering, Electrical & Electronic
Saptaka Baruah, Bidyarani Maibam, Chandra Kamal Borah, Tanvi Agarkar, Ashvani Kumar, Sanjeev Kumar
Summary: In this study, nano-structured Zinc Oxide (ZnO) was synthesized using the hydrothermal method and modified with Cobalt (Co), Iron (Fe), and a mixture of Co and Fe (Co-Fe) for glucose sensing. Doped samples showed reduced photoluminescence intensity compared to pristine ZnO, with (Co-Fe) doped electrodes demonstrating better conductivity. The GOx-modified (Co-Fe) doped ZnO sensor exhibited a 2-fold sensitivity enhancement, making it a potential candidate for clinical diagnosis, industry, and food science applications.
IEEE SENSORS JOURNAL
(2021)
Article
Chemistry, Analytical
Yichen Zhao, Biwen Gao, Peihuan Sun, Jiawen Liu, Juewen Liu
Summary: This study investigated the effect of pH and metal ions on the fluorescence enhancement sensor OTC5 that binds to tetracycline, oxytetracycline, and doxycycline. The results showed that Mg2+ ions are crucial for the binding of OTC5 to its target and that lower pH values lead to better fluorescence enhancement.
Article
Engineering, Environmental
Lingqing Wang, Xiaoxiao Han, Tao Liang, Xiulan Yan, Xiao Yang, Zhiguo Pei, Shuhan Tian, Shengsen Wang, Eder C. Lima, Joerg Rinklebe
Summary: This study investigated the sorption and cosorption of Zn(II) and chlortetracycline (CTC) onto montmorillonite at different solution pH levels. The presence of CTC/Zn(II) could enhance the maximum sorption capacity of both substances, promoting individual sorption in both acidic and neutral environments. Surface complexation was identified as a key process behind the sorption of CTC and Zn(II) onto montmorillonite.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Chemistry, Applied
Yukun Yang, Zhuo Shi, Yuanyuan Chang, Xiaomin Wang, Ligang Yu, Caixia Guo, Jinhua Zhang, Baoqing Bai, Dandan Sun, Sanhong Fan
Summary: A novel magnetic molecularly imprinted electrochemical sensor was developed by coupling surface molecularly imprinted magnetic metal-organic frameworks with magneto electrodes for label-free detection of oxytetracycline. The sensor showed a linear response within a wide concentration range of OTC and exhibited high recovery rates in milk samples, demonstrating its potential for food safety analysis.
Article
Chemistry, Analytical
Sanaz Akbarzadeh, Habibollah Khajehsharifi, Saeedeh Hajihosseini
Summary: A novel, rapid, and label-free aptamer-based electrochemical biosensor was designed for the detection of oxytetracycline (OTC), utilizing a newly synthesized nanocomposite to enhance electrical conductivity of the electrode surface. The aptasensor showed high sensitivity, low detection limit, wide linear range, and good repeatability for measuring OTC content in milk samples. The results demonstrated the effectiveness of the aptasensor in real sample analysis.
Article
Nanoscience & Nanotechnology
Sakeena Masrat, Vandana Nagal, Marya Khan, Akil Ahmad, Mohammed B. Alshammari, Shamshad Alam, Umesh T. Nakate, Byeong-il Lee, Prabhash Mishra, Kiesar Sideeq Bhat, Rafiq Ahmad
Summary: The use of hybrid nanostructured nanomaterials in sensor development has the potential to overcome sensitivity issues and enhance sensing performance. In this study, a hybrid nanostructured nanomaterial-integrated sensor based on ZnO NR-CuO NSs was developed for ultra-sensitive uric acid detection.
ACS APPLIED NANO MATERIALS
(2023)
Article
Engineering, Environmental
Yuzhen Huang, Kai Zhang, Xiaoshuang Chen, Xiaohui Yan, Jiaoyan Qiu, Yu Zhang, Lin Han
Summary: This study introduces an electric field-driven bi-directional mass transport strategy for accurate and sensitive electrochemical zinc ion chip. By exploring process parameters and experimental results, the chip achieves high sensitivity and selectivity, providing new insights for mobile environmental detection and biomedical monitoring.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Electrical & Electronic
Xiangle Meng, Xiuxiu Dong, Dong Liu, Qijian Niu, Shun Lu, Tianyan You
Summary: In this study, a sensitive electrochemical sensor based on manganese dioxide@nitrogen-doped graphene was developed for detecting the concentration of Zn2+. The sensor exhibited excellent performance and reproducibility, and was successfully applied in practical sample analysis.
IEEE SENSORS JOURNAL
(2023)
Review
Chemistry, Multidisciplinary
Jing Li, Chaojun Wang, Zixun Yu, Yuan Chen, Li Wei
Summary: Zinc is a promising alternative to lithium for electrochemical energy storage devices, and MXenes are potential materials for high-performance electrodes in these devices. This review summarizes the recent progress on MXene-based electrodes for Zn-based energy storage devices, including synthesis, chemical functionalization, and structural design. The relations between material properties, electrode structures, and device performance are analyzed, and suggestions for future research are proposed towards practical MXene-based electrodes for commercialization of Zn-based energy storage devices.
Article
Chemistry, Analytical
Kailai Wang, Edward P. C. Lai
Summary: An electrochemical method was used to study the redox properties of zinc oxide, zinc peroxide, and sodium-doped zinc peroxide nanoparticles. Cyclic voltammetry analysis showed that the peak currents are linearly related to the mass of deposited nanoparticles. ZnO nanoparticles played a crucial role in enhancing the oxidation current of metabisulfite, while PPy coating suppressed the current enhancement by covering all nanoparticle surfaces. Additionally, meso-tetrakis(4-carboxyphenyl) porphyrin was found to be a good chemical reagent for differentiating ZnO from ZnO2 and nanoparticles.
Article
Chemistry, Physical
Rongrong Yuan, Zibo Liu, Hao Sun, Hongming He
Summary: Fe-PPOF, a ferriporphyrin-based porous organic framework synthesized via Sonogashira coupling reaction, efficiently immobilizes aptamers for fabricating an electrochemical aptasensor to detect ultra-trace OTC with low limitation of detection. The biosensor exhibits high selectivity, good stability, and available reproducibility. Importantly, the Fe-PPOF-based electrochemical aptasensor can quantitatively detect OTC in real samples.
APPLIED SURFACE SCIENCE
(2021)
Article
Materials Science, Ceramics
Nimrah Arif, Sundus Gul, Manzar Sohail, Syed Rizwan, Mudassir Iqbal
Summary: MXene material Nb2C is widely applied in lithium ion batteries and supercapacitors, but its application in the sensing field has not been explored. This study reports the synthesis and application of Nb2C/ZnS nanocomposite for dopamine sensing for the first time, showing a wide linear detection range, very low detection limit, and excellent sensitivity.
CERAMICS INTERNATIONAL
(2021)
Article
Agricultural Engineering
Xiang Li, Chunping Yang, Yan Lin, Tianjue Hu, Guangming Zeng
Summary: This study investigated the removal of nutrients from swine wastewater digester effluent (SWDE) by microalgae Coelastrella sp. and the production of Coelastrella sp. in the presence of oxytetracycline (OTC) and zinc (II). The mechanisms of OTC and zinc (II) stress on microalgae were discussed by analyzing the removal performance of SWDE and biochemical characteristics of microalgae. The results showed that the presence of zinc (II) decreased the removal efficiency of ammonia nitrogen and biomass yield of microalgae in the presence of OTC. The presence of zinc (II) also promoted the accumulation of lipids in microalgae, while the presence of OTC increased the unsaturation of fatty acid methyl ester.
BIORESOURCE TECHNOLOGY
(2022)
Article
Nanoscience & Nanotechnology
I Richard, B. Schyrr, S. Aiassa, S. Carrara, F. Sorin
Summary: Electrochemical sensors have been widely used in analytical chemistry due to high-throughput printing technologies, but have been limited to 2D geometries with large minimum feature sizes. This study introduces a scalable method for fabricating electrochemical devices with novel fiber-based architectures, demonstrating versatile applications through tailored fiber microstructures. Performance of the devices is showcased using cyclic voltammetry and chronoamperometry for direct detection and quantification of paracetamol, as well as a portable pipet-based analyzer for direct sampling and analysis of microliter-range volumes.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Nadine J. Kanik, Artur Kuligiewicz, Jeffrey T. Cullen
Summary: This study examined the effects of different pre-treatments on the structural H-isotope composition of clay minerals. The results showed that different pre-treatments had varied impacts on different clay minerals, and the choice of pre-treatment should be based on the specific properties and mineralogy of the samples.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
Lorenzo Lisuzzo, Giuseppe Cavallaro, Stefana Milioto, Giuseppe Lazzara
Summary: This study proposes Pickering emulsions based on wax and halloysite clay nanotubes for coating silk sutures to increase their loading capacity towards eosin. The presence of halloysite/wax microspheres on the surface of silk sutures has also been explored for controlled release of hydrophobic drugs. The influence of the coating on the thermal and mechanical properties of the sutures has been studied using various techniques. In conclusion, the wax/halloysite Pickering emulsions can successfully generate hydrophobic microdomains on the surface of silk sutures, leading to enhanced flexibility and improved loading capacity towards eosin.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
Bruna F. Alves, Rita C. P. Nunes, Luiz C. Bertolino, Elizabete F. Lucas
Summary: Operational problems in the oil industry caused by the precipitation of paraffins can be prevented by using polymeric additives. This article evaluates the use of polymeric nanocomposites as pour point reducers in different types of crude oil and finds that they are more efficient than pure poly(ethylene-covinyl acetate) (EVA) in reducing the pour point. The nanocomposites also modify the wax crystals and reduce the viscosity of the oil samples.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
K. A. Daniels, C. C. Graham, A. C. Wiseall, J. F. Harrington, P. Sellin
Summary: Geological storage with clay buffer is widely preferred for removing hazardous radioactive waste. The impact of fluid salinity and void space on the swelling behavior of barrier bentonites was examined through experiments. The findings suggest that clay swelling is suppressed at higher salinities, which affects the void-filling process.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
N. Werling, A. Kuligiewicz, A. Steudel, R. Schuhmann, F. Dehn, K. Emmerich
Summary: Thermal treatment of clay minerals can be used to produce building materials and environmentally friendly binders. This process involves dehydration, dehydroxylation, breakdown of structure, and recrystallization of high temperature phases. Rehydration and rehydroxylation are important factors to consider for geopolymers and SCM.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
Xuan Wang, Hao Ding, Zhuoqun Xu, Jianmeng Zhang, Yanbin Yao
Summary: Rutile nano-TiO2 was loaded onto the surface of sericite to prepare sericite-rutile composite particles, which were then modified with HDTMS and sprayed onto the substrates to form sericite-rutile/HDTMS composite coatings with UV shielding and superhydrophobic self-cleaning properties. The coating exhibited good UV shielding rate and remained superhydrophobic after UV irradiation. The hierarchical structure of the sericite-rutile composite and the low surface energy of HDTMS contributed to the superhydrophobicity and UV shielding effect of the coating.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
Kailang Sun, Taojun Zhang, Jie Zhou, Yonghong Liu, Minfeng Zeng, Zhen Yang, Ruokun Feng, Xiaorong Ren, Peng Zhang, Baoyi Wang, Xingzhong Cao
Summary: Chitosan-Pd0 nano particles encapsulated in Al, Co-pillared montmorillonite nanocomposites were successfully synthesized using a facile one-pot heat treatment method. The Al, Co pillaring effectively expanded the surface area and generated numerous mesopores in the interlayer space of the MMt. The resultant nanocomposite exhibited similar high comprehensive catalytic performances as the one prepared by the regular divided-multistep method. The encapsulation of CS chains and doping of Co in the Al pillaring also contributed to the improved catalytic performance.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
Nathalie Fagel, Isabel Israde-Alcantara, Reza Safaierad, Marttiina Rantala, Sabine Schmidt, Gilles Lepoint, Pierre Pellenard, Nadine Mattielli, Sarah Metcalfe
Summary: Environmental conditions significantly influence clay minerals, and studying clay sediments in tropical lakes can provide valuable insights into past environmental conditions. In this study, multiproxy records from sediment cores of three crater lakes in central Mexico were analyzed. The results showed that disordered kaolinite, formed through hydrolysis and hydrothermal alteration, was the predominant mineral in the sediments. The abundance of kaolinite varied in relation to organic carbon and organic matter-related elements, and showed opposite trends with lithogenic elements. Geochemical data suggested that the increase in kaolinite abundance is linked to the formation of organo-mineral aggregates and lake level changes in closed basins.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
M. J. Martin-Alfonso, A. Mejia, F. J. Martinez-Boza, P. Partal
Summary: The drilling industry is facing new challenges to develop eco-friendlier drilling fluids. Organic modified sepiolite dispersed in oil can be an excellent additive with suitable rheological properties. This study investigated the effect of alkyl ammonium modifiers on the microstructure and rheological properties of sepiolite-vegetable oil dispersions under high-temperature and high-pressure conditions.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
Weiquan Zhan, Siyuan Yang, Shenxu Bao, Liuyi Ren, Cheng Liu
Summary: The interaction between talc and the depressor CMC was investigated through molecular dynamics simulation and density functional theory calculation. It was found that CMC showed stronger adsorption on the edge plane of talc due to enhanced interactions with polar groups and water molecules. The study also revealed specific interactions between H atoms in CMC and O atoms in the edge plane, as well as between O atoms in CMC and Si, Mg atoms in the edge plane. Hydration shells on the basal and edge planes of talc were examined to explain the phenomenon.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
Pierre Dramou, Yiyang Sun, Xu Ni, Fangqi Wang, Hua He
Summary: In this study, a magnetic nanocomposite was prepared and used for the separation of rutin from real samples through magnetic solid phase extraction (MSPE). The nanocomposite exhibited high specific surface area, chemical and thermal stability, water solubility, and easy separation in aqueous solution. Characterization and experiments confirmed the successful synthesis and efficient enrichment ability of the nanocomposite.
APPLIED CLAY SCIENCE
(2024)