Article
Chemistry, Physical
S. Shabna, S. Sahaya Jude Dhas, C. S. Biju
Summary: Persistent organic pollutants (POPs) have a strong resistance to environmental degradation and cannot be completely removed through traditional treatment processes, which cause serious health impacts on wildlife and human beings. Photocatalysis process has emerged as a powerful solution to ensure clean and secure water. This review focuses on the potential progress in SnO2 nanostructures for enhancing the photocatalytic degradation of organic pollutants, as well as current challenges and future perspectives.
CATALYSIS COMMUNICATIONS
(2023)
Article
Engineering, Chemical
Min Zhang, Yunyuan Dong, Mengling Peng, Xiaobin Chen, Qifu Zheng, Jianming Liao, Wei Chen
Summary: Construction of carbon-based heterostructural photocatalyst materials with high electron transfer rates is an effective strategy for organic pollutant mineralization and toxic metal ion removal under visible-light irradiation. This study developed a facile hydrothermal route to prepare a series of heterojunction photocatalysts, which exhibited excellent photocatalytic activity for degradation of tetracycline hydrochloride and reduction of Cr(VI). Notably, the photocatalysts showed good activity and stability even after cycle experiment. This study provides new insights into the design of carbon-based heterojunction photocatalysts for the removal of harmful chemicals.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Mithun Prakash Ravikumar, Toan-Anh Quach, Bharagav Urupalli, Sanath Kumar, Yen-Pei Fu, Mamatha Kumari Murikinati, Shankar Muthukonda Venkatakrishnan, Trong-On Do, Sakar Mohan
Summary: In this study, a phase engineering strategy was explored to form a titanium oxynitride phase by nitriding a sol-gel-derived TiO2-based precursor in an ammonia gas environment. The physicochemical properties of the oxynitride phase were investigated and compared with the oxide and nitride phases. The oxynitride phase showed improved optical absorption, band gap energy, and photocatalytic performance compared to the oxide and nitride phases. The improved photocatalytic efficiency of the oxynitride phase was attributed to the synergy of oxide-nitride phases and the effective charge carrier transfer.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Physical
Farzane Pazoki, Razieh Esfandiarpour, Fatemeh Mohsenzadeh, Fahimeh Mohammadpanah, Akbar Heydari
Summary: This article reports the synthesis of tetrazoles using Fe3O4@Phenyl phosphate creatine as a catalyst, and computes the optimized geometry of tetrazole derivatives and Fe3O4@Phenyl phosphate creatine using DFT. Additionally, molecular docking is used to describe the biological activity of tetrazole derivatives.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Green & Sustainable Science & Technology
F. Elfatouaki, R. Takassa, O. Farkad, S. Hassine, O. Choukri, A. El Mouncharih, E. A. Ibnouelghazi, A. Outzourhit, D. Abouelaoualim
Summary: This study analyzed the properties of stable double perovskite Cs2AgSbI6 and its bromine alloy compounds, and found that doping with bromine can control the band gap. Theoretical calculations showed that Cs2AgSb(I1_XBrX)6 has stable properties under typical conditions and is suitable for solar cell applications. At a thickness of 800 nm, Cs2AgSb(I0.50Br0.50)6 achieved a theoretical efficiency of 18%.
MATERIALS TODAY SUSTAINABILITY
(2023)
Article
Chemistry, Multidisciplinary
Dongchun Zheng, Xiao-Li Zhao, Xueqi Yan, Weimin Xuan, Qi Zheng, Lianjun Wang, Wan Jiang
Summary: A family of transition-metal doped Ti-oxo clusters with diverse core structures have been successfully synthesized. Their photocurrent responses can be tuned by varying the heterometals, and the cobalt-doped cluster exhibits the highest H-2 evolution activity (32.5 mu mol g(-1) h(-1)) with good stability.
NEW JOURNAL OF CHEMISTRY
(2022)
Review
Chemistry, Multidisciplinary
Y. N. Teja, Mohan Sakar
Summary: 2D materials with their superior properties have attracted researchers and have gained great momentum in the field of photocatalytic applications. This review highlights the various 2D materials, their properties, synthesis methods, and diverse photocatalytic applications. The challenges and future opportunities for the large-scale real-time photocatalytic applications of 2D materials are also discussed.
Article
Materials Science, Ceramics
Shui-Miao Yu, Zong-Yan Zhao
Summary: Using density functional theory calculations, we systematically investigated the doping effects of various dopants at different lattice positions in CuFeO2-based photocatalysts. Our findings showed that Mn replacing Fe and N replacing O were the most readily achievable doping methods under different oxygen conditions. We also discovered that different dopants can generate impurity levels capable of capturing photogenerated charges and promote the separation of photogenerated electron-hole pairs.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Ceramics
Zemin He, Ping Yu, Haiyang Wang, Jianjing Gao, Yang Zhao, Haiquan Zhang, Yuzhen Zhao, Zongcheng Miao
Summary: By combining ferroelectric BaTiO3 with Ag nanoparticles, enhanced piezocatalytic and photocatalytic performance were achieved. The successful binding of Ag with BaTiO3 was confirmed through microstructural characterization. The catalytic reactions of Ag-loaded BaTiO3 sample showed significant improvement under visible light and ultrasonication, with consistent performance over multiple cycles and validated by scavenger tests.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2021)
Article
Materials Science, Ceramics
Zhongqing Xiang, Huijuan Guan, Bing Zhang, Yafei Zhao
Summary: This study successfully prepared a unique photocatalyst composed of CoP and ZnIn2S4 (ZIS) through electrostatic self-assembly method, exhibiting significantly enhanced photocatalytic performance and excellent stability. These results are attributed to the large/intimate contact interface and the photo/electro-chemical properties of ZIS and CoP, improving light absorption, facilitating photoelectron transport and suppressing charge recombination.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2021)
Article
Materials Science, Ceramics
Lingling Wu, Cuiping Guo, Ruohan Feng, Haoyue Zhang, Nan Shi, Yao Li, Huilan Su, Xinjiang Cui, Fang Song
Summary: This study successfully enhanced the visible light absorption and solar photocatalytic efficiency of TiO2 by codoping phosphonis(V) and Titanium(III) into leaf-architectured TiO2 via a sol-gel biotemplating approach. The codoping strategy led to a 2.6 times higher solar photocatalytic degradation rate compared to commercial TiO2 P25.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2021)
Article
Chemistry, Physical
H. Joshi, R. K. Thapa, Amel Laref, Worasak Sukkabot, Lalrinthara Pachuau, Lalmuanpuia Vanchhawng, P. Grima-Gallardo, M. Musa H-E Saad, D. P. Rai
Summary: First Principles calculations were performed on CsPbBr3 to investigate its elastic, electronic and optoelectronic properties. The results show that the calculated energy bandgap is similar to experimentally measured values and the optical spectra exhibit high absorption coefficients in the range of 3-6 eV.
SURFACES AND INTERFACES
(2022)
Article
Chemistry, Inorganic & Nuclear
Majid Moradian
Summary: The structure and stability of monolayer Sr2S was studied using first principles calculations. The impact of termination states with F, O, and OH on the electronic properties of pure Sr2S in three different configurations was investigated. The pure Sr2S structure was found to be physically stable and a non-magnetic metal. The response of monolayer Sr2S to fluoride, oxide, and hydroxide varied for each configuration. The terminated pure monolayer Sr2S proved to be a promising material for nanoelectronics and spintronic industries.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Marija Stojkovic, Igor A. Pasti
Summary: Metal-organic framework (MOF) materials have unique properties due to their structure with inorganic nodes connected with organic linkers, making them suitable for various energy-related applications. By applying mechanical strain on UiO-66, it is possible to control its absorption coefficient in the UV-Vis spectrum and the selectivity of photocatalytic processes when reactants are present. These findings could lead to novel strategies for designing MOFs for sustainable energy conversion applications.
Article
Chemistry, Physical
Tijana Stamenkovic, Dejan Pjevic, Jugoslav Krstic, Maja Popovic, Vladimir Rajic, Vesna Lojpur
Summary: A series of SrGd2O4 samples doped with different concentrations of Sm3+ and Dy3+ were prepared through glycine-assisted combustion synthesis. X-ray Powder Diffraction investigation confirmed the presence of pure orthorhombic lattice SrGd2O4. Energy Dispersive X-ray Spectroscopy showed that the desired elements were incorporated in the structure. Field Emission Scanning Electron Microscopy revealed the morphology of the samples as porous aggregated particles consisting of approximately 50 nm-sized spherical particles. Mercury Intrusion Porosimetry demonstrated the presence of a real permanent 3D pore structure. X-ray Photoelectron Spectroscopy confirmed the successful incorporation of Dy3+ and Sm3+ ions. Down-conversion luminescence spectra showed typical emission transitions for Sm3+ and Dy3+ ions. The energy band gap of the doped samples was calculated to be 4.3 eV using UV-VIS Diffuse Reflectance Spectroscopy. UV-VIS Absorption Spectroscopy observed the photocatalytic degradation process, with approximately 50% of Rhodamine B being mineralized after 4 hours of simulated Sun exposure.
SURFACES AND INTERFACES
(2023)
Article
Engineering, Environmental
Sayyar Ali Shah, Li Xu, Rani Sayyar, Ting Bian, Zeyu Liu, Aihua Yuan, Xiaoping Shen, Iltaf Khan, Asif Ali Tahir, Habib Ullah
Summary: The growth of hierarchical MoS2 nanosheets on N-doped carbon encapsulated metal particles has resulted in a highly active electrocatalyst for hydrogen evolution reaction (HER). This catalyst exhibits excellent HER performance and long-term stability in acidic conditions, with the superior catalytic activity attributed to optimal electron transfer between nanoparticles leading to enhanced HER performance.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Energy & Fuels
Khawaja Haider Ali, Mohammad Abusara, Asif Ali Tahir, Saptarshi Das
Summary: Real-time energy management in grid-connected microgrids is challenging due to intermittent renewable energy sources, load variations, and variable grid tariffs. This paper proposes a novel dual-layer Q-learning strategy, where the first layer produces directive commands offline using forecasted data, and the second layer refines these commands every 15 minutes by considering real-time changes in the RES and load demand.
Review
Energy & Fuels
Sreeram Valsalakumar, Anurag Roy, Tapas K. Mallick, Justin Hinshelwood, Senthilarasu Sundaram
Summary: The power conversion efficiencies of Perovskite solar cells have significantly improved between 2012 and 2022. These solar cells have excellent optoelectronic properties and can be manufactured using low-cost materials. This review article explores scalable perovskite deposition techniques, including the fabrication of high-quality perovskite film, their stabilities, and commercialization status. Various deposition techniques, such as spin coating and slot die coating, as well as vapour-assisted deposition approaches, are discussed. These techniques offer advantages in terms of cost, mask-less patterning, and design freedom.
Review
Energy & Fuels
Maria Khalid, Tapas Kumar Mallick
Summary: Perovskite solar cells (PSCs) have shown great potential as the next generation of PV devices due to their rapidly increasing power conversion efficiencies. However, their long-term stability is a critical issue that needs to be addressed before commercialization. This review discusses the evolution of solar cells, the characteristics of perovskite, strategies to improve performance, and the relationship between stability and environmental conditions. Additionally, the review explores the idea of implementing PSCs with concentrated PV applications for higher efficiency and competitiveness.
Article
Chemistry, Physical
Aqsa Anum, Muhammad Altaf Nazir, Sobhy M. Ibrahim, Syed Shoaib Ahmad Shah, Asif A. Tahir, Misbah Malik, Muhammad Ahmad Wattoo, Aziz ur Rehman
Summary: In this research, new hybrids of MOF-5 and GO were synthesized to remove the hazardous antibiotic moxifloxacin (MOX). The Ni/Mo.S-2/MOF-5/GO nanocomposite showed excellent photocatalytic activity and mechanical stability.
Article
Chemistry, Physical
Misbah Malik, Sobhy M. Ibrahim, Muhammad Altaf Nazir, Asif A. Tahir, Muhammad Khurram Tufail, Syed Shoaib Ahmad Shah, Aqsa Anum, Muhammad Ahmad Wattoo, Aziz Ur Rehman
Summary: Robust hybrid g-C3N4/ZnO-W/Co-x heterojunction composites were synthesized using simple and low-cost coprecipitation methods. Characterization techniques such as FTIR, XRD, FESEM, and EDX were used to investigate the fabricated catalyst. The as-synthesized g-C3N4/ZnO-W/Co-0.010 composite showed impressive photocatalytic performance, achieving 90% degradation of methylene blue (MB) under visible light within 90 minutes of irradiation. Furthermore, the synthesized composites exhibited good recyclability and mechanical stability over five cycles.
Review
Chemistry, Multidisciplinary
Mustafa Majid Rashak Al-Fartoos, Anurag Roy, Tapas K. Mallick, Asif Ali Tahir
Summary: Amidst global challenges, thermoelectricity offers a promising solution for sustainable energy by converting waste heat into electricity. However, obstacles such as high cost, toxicity, and reliance on rare-earth elements hinder the development of high-performance thermoelectric materials.
Article
Chemistry, Multidisciplinary
Xiuru Yang, Anurag Roy, Mansour Alhabradi, Manal Alruwaili, Hong Chang, Asif Ali Tahir
Summary: Photocatalytic hydrogen evolution is a transformative approach for addressing fossil fuel challenges. This study synthesized tantalum-iron heterojunction composites and investigated their photocatalytic prowess. Sample 1000-1 exhibited exemplary photocatalytic hydrogen evolution capacity, surpassing sample 1100-1 by a significant margin. These findings highlight the potential utility of these tantalum iron matrices for sustainable hydrogen production via photocatalysis.
Article
Chemistry, Multidisciplinary
Manal Alruwaili, Anurag Roy, Mansour Alhabradi, Xiuru Yang, Asif Ali Tahir
Summary: We investigated the influence of cobalt nanoparticles on spray pyrolyzed TiVO4 thin films and found that the incorporation of cobalt significantly improved the photoelectrochemical properties. By optimizing the cobalt ion concentration to 3 mM, a composite electrode with TiVO4:Co photoanode achieved a photocurrent density of 450 μA/cm2, approximately 5 times higher than bare TiVO4. Characterization of the composite structure, optical properties, and electrochemical impedance spectroscopy analysis showed improved charge transfer at the TiVO4/Co interface. The TiVO4/Co composite exhibited enhanced photocatalytic activity in degrading methylene blue dye, with a degradation rate of 97% in 45 minutes under light illumination. Our scalable fabrication method is suitable for large-area devices for sunlight-driven PEC seawater splitting studies.
Article
Chemistry, Multidisciplinary
Saima Qureshi, Duncan Gregory, Asif Ali Tahir, Safeer Ahmed
Summary: A ZrO2 added alpha-Fe2O3 photoanode that can split water at low applied potential was reported. The modified alpha-Fe2O3 photoanode showed increased photocurrent density and oxygen production compared to the pristine hematite photoanode.
Article
Chemistry, Physical
Nurul Affiqah Arzaee, Nuttapon Yodsin, Habib Ullah, Sabiha Sultana, Mohamad Firdaus Noh, Ahmad Wafi Mahmood Zuhdi, Abd Rashid Bin Mohd Yusoff, Siriporn Jungsuttiwong, Mohd Asri Mat Teridi
Summary: In this study, TiO2 was rapidly produced using atmospheric-pressure chemical vapor deposition technique and exhibited exceptional photoelectrochemical water-splitting performance. The controlled formation of an anatase-rutile phase-junction, the presence of well-balanced oxygen vacancies, and the unique structure were found to play important roles in the performance.
CATALYSIS SCIENCE & TECHNOLOGY
(2023)
Correction
Chemistry, Physical
Nurul Affiqah Arzaee, Nuttapon Yodsin, Habib Ullah, Sabiha Sultana, Mohamad Firdaus Mohamad Noh, Ahmad Wafi Mahmood Zuhdi, Abd Rashid Bin Mohd Yusoff, Siriporn Jungsuttiwong, Mohd Asri Mat Teridi
Summary: This study focuses on the effect of charge transfer from rutile to anatase on the hydrogen evolution reaction performance of anatase-rutile TiO2 heterojunction.
CATALYSIS SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Manal Alruwaili, Anurag Roy, Srijita Nundy, Asif Ali Tahir
Summary: Photoelectrochemical water splitting is a promising and environmentally-friendly strategy for cost-effective hydrogen production. Researchers have developed a nanostructured TiVO4 photoanode that can generate high photocurrent density under visible light, providing a new solution for water splitting.
Article
Materials Science, Multidisciplinary
Anurag Roy, Tapas K. Mallick, Asif Ali Tahir
Summary: By using a pH-temperature-transparency modulating hydrogel as an energy stimulus material for double-glazed windows, it is possible to provide a comfortable indoor daylight environment without sacrificing aesthetics, thus achieving the goals of sustainable architecture.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Review
Engineering, Environmental
Muhammad Usman, Zonish Zeb, Habib Ullah, Munzir H. Suliman, Muhammad Humayun, Latif Ullah, Syed Niaz Ali Shah, Usama Ahmed, Muhammad Saeed
Summary: Population growth and economic development have led to an increase in the consumption of fossil fuel energy resources, resulting in serious environmental implications. Photocatalysis plays a crucial role in sustainable energy development and environmental remediation. Graphitic carbon nitride (g-C3N4) and metal-organic frameworks (MOFs) composites have significant importance in green energy production and environmental pollution control.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Analytical
Mengmeng Guo, Na Luo, Yueling Bai, Zhenggang Xue, Qingmin Hu, Jiaqiang Xu
Summary: A porous heterostructure WO3-C/In2O3 was designed and prepared for a miniature H2 sensor, which showed higher response value, lower operating temperature, fast response-recovery speed, and low limit of detection.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Feng Hu, Hui Hu, Yuting Li, Xiaohui Wang, Xiaowen Shi
Summary: Arsenic contamination in water bodies is a significant health risk. This study developed a chitosan-catechol modified electrode for rapid and accurate detection of trace amounts of arsenic. The modified electrode demonstrated good detection capability and resistance to ionic interference, making it suitable for in situ detection.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Yantao Zhang, Qian Liu, Tao Tian, Chunhua Xu, Pengli Yang, Lianju Ma, Yi Hou, Hui Zhou, Yongjun Gan
Summary: In this study, a lysosome-targeting buffering fluorogenic probe (Lyso-BFP) was designed and synthesized, demonstrating excellent photostability, pH specificity, and responsiveness to lysosomal acidification in living cells. The performance of Lyso-BFP in pH sensing was attributed to the inhibition of the photo-induced electron transfer process. Lyso-BFP allowed for wash-free imaging and long-term real-time monitoring of lysosome pH changes based on its off-on fluorescence behavior and buffer strategy.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Wei Cai, Wenbo Sun, Jiayue Wang, Xiaokui Huo, Xudong Cao, Xiangge Tian, Xiaochi Ma, Lei Feng
Summary: In this study, a near-infrared fluorescent probe HCBG was developed for imaging of alpha-GLC. HCBG exhibited excellent selectivity and sensitivity towards alpha-GLC in complex bio-samples, and showed good cell permeability for in situ real-time imaging. Through the high-throughput screening system established by HCBG, a natural alpha-GLC inhibitor was successfully isolated and identified. This study provides a novel fluorescence visualization tool for discovering and exploring the biological functions of diabetes-related gut microbiota, and a high-throughput screening approach for alpha-GLC inhibitor.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Trey W. Pittman, Xi Zhang, Chamindie Punyadeera, Charles S. Henry
Summary: Heart failure is a growing epidemic and a significant clinical and public health problem. Researchers have developed a portable and affordable diagnostic device for heart failure that can be used at the point-of-care, providing a valid alternative to current diagnostics approaches.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Anders O. Tjell, Barbara Jud, Roland Schaller-Ammann, Torsten Mayr
Summary: An optical hydrogen peroxide sensor based on catalytic degradation and the detection of produced oxygen is presented. The sensor offers higher resolution and better sensitivity at lower H2O2 concentrations. By removing O2 from the sample solution, a more sensitive O2 sensor can be used for measurement. The sensor has been successfully applied in a flow-through cell to measure H2O2 concentration in different flow rates.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Seong Jae Kim, Ji-hun Jeong, Gaabhin Ryu, Yoon Sick Eom, Sanha Kim
Summary: Surface-enhanced Raman spectroscopy (SERS) is a high-sensitivity, label-free detection method with various analytical applications. Researchers have developed a hydrophobic SERS substrate based on engineered carbon nanotube arrays (CNT-SERS) and studied the role of structural design at both micro and nanoscales. The substrate demonstrated controlled self-enrichment capability and enhanced sensitivity, with a significant increase in the SERS signal. The study also proposed a theoretical model and a concentration strategy inspired by plants for analyte deposition on microarrays.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Dan Zhao, Renjun Jiang, Xiaoqiang Liu, Subbiah Alwarappan
Summary: In this study, a novel ternary composite material was constructed by assembling cerium vanadate nanorods on reduced graphene oxide-microcrystalline cellulose nanosheets, and it was used for real-time monitoring of the concentration of superoxide anions in vivo. The ternary composite showed excellent conductivity, large surface area, and abundant active sites, leading to a wider linear range, high sensitivity, low detection limit, and fast response time for superoxide anion detection.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Tengfei Wang, Liwen Wang, Guang Wu, Dating Tian
Summary: In this study, a covalent organic framework material TaTp-COF with porous and uniform spheres was successfully prepared via hydrothermal reaction, and it was found to significantly enhance the aggregation-induced emission (AIE) of berberine. The unique emission properties of berberine on TaTp-COF were studied and utilized for the sensitive detection of berberine.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Lin Li, Yilei Ding, Lei Xu, Shuoran Chen, Guoliang Dai, Pengju Han, Lixin Lu, Changqing Ye, Yanlin Song
Summary: In this study, a novel TTI based on a ratiometric fluorescent nanosensor is designed, which has the advantages of high accuracy and low cost. Experimental and theoretical investigations confirm its pH responsiveness and demonstrate its good sensitivity and reliability. By monitoring the total volatile basic nitrogen, this TTI can accurately predict food spoilage and can be adaptively modified for different types of food. The TTI based on this nanosensor enables visual monitoring of food quality.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Fangju Chen, Xueting Wang, Wei Chen, Chenwen Shao, Yong Qian
Summary: Lung cancer is the second most common malignant tumor worldwide. Drug resistance in lung cancer leads to treatment failure and recurrence in majority of patients. This study developed a fluorescent prodrug that can be activated in cancer cells to release drugs, and its signal can be tracked by imaging. It shows a unique autophagy-driven ferroptosis effect, indicating its potential for targeting drug-resistant cancer cells.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Weichao Li, Qiming Yuan, Zhangcheng Xia, Xiaoxue Ma, Lifang He, Ling Jin, Xiangfeng Chu, Kui Zhang
Summary: This study developed a high-performance gas sensor for formaldehyde detection by modifying ZnSnO3 with ZnO QDs and SnO2 QDs. The modified sensor showed improved sensing response and lower working temperature. The presence of ZnO QDs formed rich heterojunctions, increased surface area, and provided oxygen deficiency for formaldehyde sensing reaction, thus enhancing the sensor performance. This research provides an alternative method to enhance the sensing properties of MOS by QDs modification.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Joung-Il Moon, Eun Jung Choi, Younju Joung, Jin-Woo Oh, Sang-Woo Joo, Jaebum Choo
Summary: A novel nanoplasmonic substrate was developed for biomedical applications, which showed strong hot spots for detecting biomarkers at low concentrations. The substrate, called AuNPs@M13, was made by immobilizing 60 nm gold nanoparticles onto the surface of an M13 bacteriophage scaffold. It demonstrated higher sensitivity and lower limit of detection compared to commercially available assays.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Ning Li, Ya Zhang, Ying Xu, Xiaofang Liu, Jian Chen, Mei Yang, Changjun Hou, Danqun Huo
Summary: The molecular subtype of breast cancer guides treatment and drug selection. Invasive tests can promote cancer cell metastasis, so the development of high-performance, low-cost diagnostic tools for cancer prognosis is crucial. Liquid biopsy techniques enable noninvasive, real-time, dynamic, multicomponent, quantitative, and long-term observations at the cellular, genetic, and molecular levels. A Cu-Zr metal-organic framework (MOF) nanoenzyme with monatomic Cu attachment has been synthesized and proven to have high catalytic performance. The sensor constructed using this nanoenzyme shows potential for accurate classification of breast cancer serum samples.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Jeongmin Kim, Hyemin Kim, Seunghyun Park, Hyeonaug Hong, Yong Jae Kim, Jiyong Lee, Jaeho Kim, Seung-Woo Cho, Wonhyoung Ryu
Summary: This study presents a method to fabricate independently functioning microneedle (MN) electrodes with narrow intervals for high precision electrochemical sensing. The optimized mixture of photocurable polymer and single-wall carbon nanotubes was used to mold single composite MNs, which were then attached to pre-patterned electrodes. Plasma etching and electropolymerization were performed to enhance the electrochemical activity, and Prussian blue and glucose oxidase were electrodeposited on the MNs for glucose detection. The MN electrodes showed good sensitivity and linearity, and the feasibility of glucose detection was demonstrated in an in vivo mouse study.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
