Article
Physics, Applied
Mohsen Shojaeifar, Mohammad Bagher Askari, Seyed Rouhollah Samareh Hashemi, Antonio Di Bartolomeo
Summary: This study investigates the potential of metal oxide-based nanocatalysts and multi-walled carbon nanotubes (MWCNTs) for the electrooxidation of methanol and ethanol. The synthesized MnO2-NiO and MnO2-NiO-MWCNT catalysts show improved stability and kinetic performance, making them attractive options for alcohol fuel cells.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Article
Nanoscience & Nanotechnology
Weinan Song, Mingxue Zhang, Weiguang Zhao, Qinglu Zhao, Hongshun Hao, Hai Lin, Wenyuan Gao, Shuang Yan
Summary: A modification approach based on molecular imprinting technique was developed to enhance the gas sensing performance of nanostructured SnO2 gas sensors. The modified samples exhibited enhanced selectivity and anti-interference ability for target gases. The excellent sensing selectivity of these nanostructured SnO2 microspheres was exploited to distinguish chemically similar molecules.
ACS APPLIED NANO MATERIALS
(2022)
Article
Chemistry, Analytical
Run-Hui Wang, Wei Wen, Shilie Zheng, Zhizhen Ye, Jin-Ming Wu
Summary: In this study, a layered mesoporous aggregate of tin oxide nanocrystals with high specific surface area and mesoporous structure was synthesized. The tin oxide showed high ethanol sensing performance at low temperatures, with high selectivity and stability. The ethanol sensing mechanism changed with increasing operating temperature.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Materials Science, Multidisciplinary
Swapnali B. Dhage, Vithoba L. Patil, Pramod S. Patil, Jungho Ryu, Deepak R. Patil, Yuvraj S. Malghe
Summary: CuO-SnO2 nanocomposites were successfully synthesized and studied for their potential as CO gas sensors. The thermal stability and gas sensitivity of the nanocomposites were confirmed, showing excellent repeatability and sensitivity towards CO gas. The XRD results indicated pure phase formation of CuO-SnO2 heterostructure with a band-gap of 2.63 eV.
Article
Chemistry, Physical
Huimin Yu, Longhui Dai, Yangquan Liu, Yue Zhou, Ping Fan, Jingting Luo, Aihua Zhong
Summary: Superior NH3 sensors with high response and stability were successfully obtained by wrapping SnO2 nanoparticles on Ti3C2Tx MXene nanosheets via a facile hydrothermal method. The Ti3C2Tx MXene-SnO2 composite exhibited excellent NH3 gas detection at room temperature with a response as high as 75% for 500 ppm NH3 gas. The composite also showed fast response and recovery times of 109 and 342 s, respectively. Moreover, the Ti3C2Tx MXene-SnO2 composite demonstrated high selectivity and stability for NH3 gas sensing.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Electrical & Electronic
Yang Liu, Zhenyu Yuan, Renze Zhang, Hanyang Ji, Chaoyang Xing, Fanli Meng
Summary: Combining 1-D MoO3 nanorods and SnO2 nanoparticles, the MoO3/SnO2 nanocomposite shows improved speed and response performance. The composite has achieved significant results in terms of electron transport and interface optimization, demonstrating low detection limit and rapid response/recovery speed.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2021)
Article
Nanoscience & Nanotechnology
Yong Tan, Jun Zhang
Summary: In this work, an ethanol gas sensor based on Co-doped SnO2 nanobelts was fabricated. The Co-doped SnO2 nanobelts were prepared using chemical vapor deposition method and gas sensors were prepared using powder screen printing technology. The gas sensor based on Co-doped SnO2 nanobelts exhibited better gas response and shorter response time and recovery time compared to the gas sensor based on pure SnO2 nanobelts.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2023)
Article
Materials Science, Ceramics
Jian Fang, Xi Chen, Rong-Pu Xiao, Jing-Jing Xue, Ji-Ming Song
Summary: In this study, Pr-SnO2/In(2)O(3) composite material was successfully prepared by synthesis and decoration methods, and it showed good sensing performance for ethanol gas.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Analytical
Chen Wang, Runlong Li, Lingyan Feng, Jiaqiang Xu
Summary: In recent years, the two-dimensional layered material MXene has gained significant attention in the field of sensors due to its large specific surface area and rich active sites. By preparing SnO2/MXene composites using multilayer Ti3C2TX and SnO2 microspheres, the gas-sensing properties of pristine SnO2 have been enhanced. The composite was used to fabricate low power consumption resistance-type gas sensors on a microelectromechanical system (MEMS) platform. The results showed that the SnO2/MXene sensor with the best composite ratio greatly improved the gas sensitivity of SnO2 sensor, particularly to ethanol gas. The composite also accelerated the response recovery speed of the sensor.
Article
Chemistry, Analytical
Li Wang, Shuyi Ma, Jianpeng Li, Andong Wu, Didi Luo, Tingting Yang, Pengfei Cao, Nina Ma, Yahui Cai
Summary: This work presents a method for synthesizing Mo-doped SnO2 nanotubes with uniform morphology, which enhances gas adsorption by creating new lattice defects. The optimal doping concentration of transition metal elements is essential for achieving the best sensing response in metal-oxide NTs gas sensors.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Engineering, Electrical & Electronic
Junliang Zhang, Shuyi Ma, Bingji Wang, Shitu Pei
Summary: The composite SnO2/CuO nanotubes were prepared by uniaxial electrospinning, which showed excellent selectivity for ethanol. The response value of ethanol had a good linear relationship with concentration, indicating potential for gas sensing applications.
SENSORS AND ACTUATORS A-PHYSICAL
(2021)
Article
Nanoscience & Nanotechnology
Xiaoyan Song, Fangzheng Zhao, Zhipeng Wang, Runbin Ge, Jinfeng Xing
Summary: In this study, ZnO@SnO2-Pt core-shell nanofibers with a hollow structure were successfully prepared and exhibited superior gas-sensing performance, achieving higher response speed and sensitivity on the basis of reduced operating temperature. Additionally, the gas-sensing mechanism of the nanofibers was discussed in detail.
ACS APPLIED NANO MATERIALS
(2022)
Article
Chemistry, Physical
Junliang Zhang, Shuyi Ma, Bingji Wang, Shitu Pei
Summary: The SnO2-CuO composite nanoparticles fabricated as an ethanol gas sensor exhibit excellent sensitivity and selectivity to ethanol, with short response recovery time and good linear relationship between response value and ethanol concentration, mainly due to the special heterostructure and synergistic effect between tin oxide and copper oxide.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Lili Li, Chenguang Wang, Zhihua Ying, Wei Wu, Yongqian Hu, Weihuang Yang, Weipeng Xuan, Yang Li, Fei Wen
Summary: This paper reported a low concentration CO gas sensor based on SnO2 modified graphene nanocomposite at 25 degrees C. The SnO2/graphene nanocomposite exhibited higher CO gas sensing performance than pure SnO2, showing a high response to CO at 25 degrees C, shorter response and recovery times, excellent repeatability and stability. The excellent CO sensing performance of the composite is attributed to graphene's ability to provide a large surface area for adsorption sites and prevent the disagglomeration of SnO2 nanoparticles.
CHEMICAL PHYSICS LETTERS
(2023)
Article
Chemistry, Physical
Huiqing Fan, Xiaokun Zheng, Qi Shen, Weijia Wang, Wenqiang Dong
Summary: A hierarchical SnO2 nanosheet structure loaded with Pt nano quantum dots was prepared and exhibited high gas sensitivity and excellent response and recovery behavior.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Multidisciplinary
Marcell Bohus, Thong Le Ba, Klara Hernadi, Gyula Grof, Zoltan Konya, Zoltan Erdelyi, Bence Parditka, Tamas Igricz, Imre Miklos Szilagyi
Summary: This paper presents a study on the thermal conductivity and viscosity of nanofluids containing novel atomic layer deposition surface-modified carbon nanosphere and carbon nanopowder core-shell nanocomposites. The results show that the ALD-CNS can significantly enhance the thermal conductivity of nanofluids without the need for surfactants.
Article
Chemistry, Physical
Mohammed Ahmed Shehab, Nikita Sharma, Gabor Karacs, Lilla Nanai, Istvan Kocserha, Klara Hernadi, Zoltan Nemeth
Summary: This study reports the preparation and characterization of tungsten trioxide nanowire (WO3 NW)-based hybrid membrane structures, as well as the adsorption and photocatalytic properties of the membranes against organic dyes. The results show that the hybrid membranes have a removal efficiency of 77% for the organic dye, which can be attributed to the enhanced adsorption capability and photocatalytic performance of the hybrid structure. Therefore, hybrid membrane technology holds promise for future photocatalysis-based water treatment applications.
Article
Chemistry, Multidisciplinary
Zalan Istvan Varady, Thong Le Ba, Bence Parditka, Zoltan Erdelyi, Klara Hernadi, Gabor Karacs, Gyula Grof, Imre Miklos Szilagyi
Summary: The current research focuses on using surface-modified SiO2 nanoparticles and atomic layer deposition (ALD) to obtain a thin layer of TiO2 coating. The study examines the rheological properties and thermal conductivity of the nanofluids through particle characterization, zeta potential measurement, and analysis using a rotation viscosimeter and thermal conductivity analyzer.
Review
Biochemistry & Molecular Biology
Raghad M. Al-Maliki, Qusay F. Alsalhy, Sama Al-Jubouri, Issam K. Salih, Adnan A. AbdulRazak, Mohammed Ahmed Shehab, Zoltan Nemeth, Klara Hernadi
Summary: The emergence of mixed matrix membranes (MMMs) or nanocomposite membranes embedded with inorganic nanoparticles (NPs) has enabled the development of polymeric membranes with improved properties for water purification. This paper provides an overview of the effects of different hydrophilic nanomaterials on the membrane structure and performance. The addition of graphene oxide (GO) has shown promise in wastewater treatment. Overall, this review summarizes the current progress and future prospects of mixed matrix membranes.
Article
Chemistry, Applied
Nikita Sharma, Kata Saszet, Tamas Szabo, Daniel Karajz, Imre Miklos Szilagyi, Seema Garg, Zsolt Pap, Klara Hernadi
Summary: The use of plant extracts in photocatalysis for the removal of phenol under visible light has been explored. The plant extracts act as structural and shape-tailoring agents, leading to improved performance of the bismuth oxyhalides. BiOI with Azadirachta indica and BiOBr with Camellia sinensis extract show high phenol removal efficiency. The role of organics from the plant extracts and their correlation with the structural and optical properties are discussed.
Article
Chemistry, Multidisciplinary
Benoit Truc, Alexey A. Sapozhnik, Phoebe Tengdin, Emil Vinas Bostroem, Thomas Schoenenberger, Simone Gargiulo, Ivan Madan, Thomas LaGrange, Arnaud Magrez, Claudio Verdozzi, Angel Rubio, Henrik M. Ronnow, Fabrizio Carbone
Summary: A novel long-lived metastable skyrmion phase has been discovered in the multiferroic insulator Cu2OSeO3 using Lorentz transmission electron microscopy. This phase, referred to as a hidden phase, can be accessed by exciting the sample with near-infrared femtosecond laser pulses. The magnetoelastic effect is identified as the most likely mechanism for the photocreation of this phase.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Mohammed Alktranee, Mohammed Ahmed Shehab, Zoltan Nemeth, Peter Bencs, Klara Hernadi
Summary: This study investigates the use of a novel TiO2-CuO hybrid nanofluid to reduce the temperature of PV cells, thus improving the energy and efficiency of PVT systems. The experiment shows that the hybrid nanofluid can reduce the temperature of the PV module by 39% and improve the electrical power and overall efficiency by 77.5% and 58.2% respectively, at a concentration of 0.3 vol%. The study also demonstrates the positive effects of the hybrid nanofluid cooling on the system's entropy generation and economic analysis.
ARABIAN JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Physical
Viktoria Marta, Zsolt Pap, Eniko Bardos, Tamas Gyulavari, Gabor Vereb, Klara Hernadi
Summary: Bismuth oxybromides with varying urea amounts were synthesized through a solvothermal method. The influence of urea ratio on the morpho-structural properties and photocatalytic activity of the samples was investigated. Characterization techniques such as X-ray diffraction, diffuse reflectance spectroscopy, infrared spectroscopy, Raman spectroscopy, scanning electron microscopy, and surface tension measurements were employed. The urea ratio had a significant effect on the morphology, particle size distribution, and photoactivity of the samples, but a limited effect on the crystalline composition, primary crystallite size, and band gap of bismuth oxybromides. The formation of Bi-based complexes and degraded urea-based products were found to influence the band gap energies and, consequently, the photoactivity. Samples prepared at low urea ratios exhibited the highest degradation efficiency for both rhodamine B and ibuprofen under both UV and visible light irradiations.
Article
Materials Science, Multidisciplinary
Dhiyaa A. Hussein Al-Timimi, Qusay F. Alsalhy, Adnan A. AbdulRazak, Mohammed Ahmed Shehab, Zoltan Nemeth, Klara Hernadi
Summary: This study aims to optimize operating parameters of mixed matrix membranes (MMMs) fabricated from polyethersulfone (PES) and silica nanoparticles (SiO2 NPs) or modified silica NPs with polyethylenimine (PEI) (SiO2-g-PEI NPs) for pharmaceutical wastewater treatment. The results showed that SiO2 MMMs had a permeate flux of 38.27 LMH and 81.26% MBV rejection, while SiO2-g-PEI MMMs had a permeate flux of 104.11 LMH and 99.00% MBV rejection. The optimal parameters for SiO2 MMMs were SiO2 wt % of 0.8447%, MBV concentration of 98.18 ppm, and pH of 4, while the optimal parameters for SiO2-g-PEI MMMs were SiO2-g-PEI wt% of 0.93%, MBV concentration of 22.7 ppm, and pH of 4.79.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Biochemistry & Molecular Biology
Laura Fekete, Akos Ferenc Fazekas, Cecilia Hodur, Zsuzsanna Laszlo, Aron Agoston, Laszlo Janovak, Tamas Gyulavari, Zsolt Pap, Klara Hernadi, Gabor Vereb
Summary: Membrane filtration is an effective technique for separating micro- and nano-sized oil droplets from oil-contaminated waters. The flux reduction is a challenge for its extensive application, thus the development of antifouling membranes is necessary. The modification of PVDF membranes with TiO2/CNT nanocomposites (2% CNT) showed the highest reduction in filtration resistance and the highest fluxes compared to unmodified membranes, resulting in improved flux recovery ratio and purification efficiency.
Article
Biochemistry & Molecular Biology
Raghad M. Al-Maliki, Qusay F. Alsalhy, Sama Al-Jubouri, Adnan A. AbdulRazak, Mohammed Ahmed Shehab, Zoltan Nemeth, Klara Hernadi, Hasan Sh. Majdi
Summary: In this study, tungsten oxide and graphene oxide (GO-WO2.89) were combined using the ultra-sonication method and embedded with polyphenylsulfone (PPSU) to prepare low-fouling membranes for ultrafiltration. The modified PPSU membrane with 0.1 wt.% GO-WO2.89 exhibited the best characteristics, including a contact angle of 40.82 degrees and a porosity of 92.94%. It also had the highest permeation flux and BSA rejection rate. Additionally, the GO-WO2.89 composite showed positive antibacterial performance at different concentrations.
Article
Chemistry, Physical
Mahitha Udayakumar, Nikita Sharma, Klara Hernadi, Matjaz Finsgar, Blaz Likozar, Kocserha Istvan, Mate Lesko, Daniel Attila Karajz, Imre Miklos Szilagyi, Zoltan Nemeth
Summary: Multicomponent nanocomposites of bismuth oxychloride (BiOCl) with porous carbon foam (CF) derived from waste polyurethane (PU) elastomers were prepared by a simple hydrothermal method and their photocatalytic performance was investigated. The composites exhibited excellent photocatalytic activity for the degradation of methylene blue (MB) under UV-A irradiation, with a high overall removal efficiency of 99.0% in 100 min of irradiation. The enhanced activity of the composites was attributed to the well-connected heterojunction interface, improved hydrophilicity, more reactive sites, and effective separation of photogenerated charges.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2023)
Article
Physics, Multidisciplinary
Priya R. Baral, Oleg I. Utesov, Chen Luo, Florin Radu, Arnaud Magrez, Jonathan S. White, Victor Ukleev
Summary: This study investigates the role of anisotropic exchange interaction (AEI) in the formation of tilted conical and disordered skyrmion states in the chiral magnet Cu2OSeO3. Using muon scattering and temperature dependence measurements, it is found that the AEI continuously increases below 50 K, leading to a 10% variation in the conical spiral pitch. These findings contribute to the understanding and design of various spiral states in chiral magnets.
PHYSICAL REVIEW RESEARCH
(2023)
Article
Energy & Fuels
Mohammed Alktranee, Mohammed Ahmed Shehab, Zoltan Nemeth, Peter Bencs, Klara Hernadi
Summary: Recently, the use of nanofluids as coolants for photovoltaic modules has gained attention due to the ability to enhance the performance of the modules. This study investigates the use of zirconium oxide nanofluid at different volume concentrations as a coolant for reducing the temperature of photovoltaic cells. The results show that using zirconium oxide nanofluid at a volume concentration of 0.0275% in deionized water effectively reduces the temperature of the PV module and improves system energy and exergy efficiency.
Article
Multidisciplinary Sciences
Kadhum M. Shabeeb, Wallaa A. Noori, Ali A. Abdulridha, Hasan Sh Majdi, Mohammad N. Al-Baiati, Ali A. Yahya, Khalid T. Rashid, Zoltan Nemeth, Klara Hernadi, Qusay F. Alsalhy
Summary: A newly developed water-soluble polymeric nano-additive called PCLNPG has been used as a pore former to modify a polyethersulfone ultrafiltration membrane for dye removal. The study found that the content of PCLNPG in the membrane affected its surface characteristics, morphological structure, and overall performance. Increasing the PCLNPG content improved the hydrophilicity and porosity of the membrane. Additionally, the increased porosity of the membrane was the main reason for the reduced contact angle. The prepared membrane with 3% PCLNPG showed significantly improved water flux and dye rejection, making it a potential option for treating textile wastewater.
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)
