Article
Materials Science, Ceramics
Morteza Niazmand, Amir Maghsoudipour, Masoud Alizadeh, Zahra Khakpour, Arash Kariminejad
Summary: In this study, a sol-gel process was used to synthesize 8YSZ electrolyte layer on NiO-8YSZ substrate. The results showed that solid content and viscosity were important parameters affecting the quality and thickness of the coatings. Higher solid content and lower viscosity resulted in dense and uniform coatings, while the withdrawal speed controlled the thickness of the coatings.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Valentina Trovato, Eti Teblum, Yulia Kostikov, Andrea Pedrana, Valerio Re, Gilbert Daniel Nessim, Giuseppe Rosace
Summary: A novel method is proposed to turn insulating cotton fabrics into electrically conductive materials by depositing VACNT, with shorter VACNT-based composite showing the best electrical conductivity. The developed e-textiles are suitable for application as humidity sensing smart textiles, demonstrating adequate response time and repeatability for end-users.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Physical
Ksh Priyalakshmi Devi, Pranab Goswami, Harsh Chaturvedi
Summary: Although TiO2 is a popular semiconductor photocatalyst, its efficiency for solar energy conversion is limited due to its large bandgap. This paper introduces a cost-effective Sol-Gel technique using spin coating technology to fabricate nanocrystalline TiO2 thin films. The authors managed to achieve a dopant-free pure anatase nanocrystalline TiO2 thin film with a low band gap. Thorough investigations on the film's structure, optical characteristics, and surface morphology were conducted and presented.
APPLIED SURFACE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Dong Hyun Kim, Dong Wook Lee, Jin Young Oh, Jonghoon Won, Jong In Jang, Hae-Chang Jeong, Dae-Shik Seo
Summary: The study investigated the brush-coating process of a sol-gel prepared SrAlLaO solution on ITO glass, revealing that the shear stress generated by brush coating can align SrAlLaO into groove-shaped nanostructures. Analysis confirmed the film's suitability for optical devices and its function as an LC alignment layer.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Chemistry, Physical
Ryosuke Nitta, Hwai-En Lin, Yuta Kubota, Tetsuo Kishi, Tetsuji Yano, Nobuhiro Matsushita
Summary: CuO nanosheets were fabricated on flexible substrates using a spin-spray method with different complexing agents, showing great potential as humidity sensors. Among them, grass-like CuO nanosheets exhibited excellent humidity-sensing performance with high sensitivity and short response and recovery times.
APPLIED SURFACE SCIENCE
(2022)
Article
Materials Science, Ceramics
Hongfei Liu, Chenjun Zhang, Zhiping Zhang, Xiangdong Meng, Xianghua Zeng
Summary: Orthorhombic Sc2Mo3O12 films were successfully prepared via spin coating technique followed by annealing at 500-750 degrees C. The crystallinity of the films improved with higher post-annealing temperatures, demonstrating stable negative thermal expansion properties. The coefficients of thermal expansion in different directions were also determined, showing the overall shrinkage and expansion of the thin film.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
Sabhya, Akshayakumar Kompa, Dhananjaya Kekuda, M. S. Murari, K. Mohan Rao
Summary: This study investigates HfO2 thin films synthesized from various precursor concentrations using sol-gel processed spin coating method. It was found that films with 0.1 M Hf sol-concentration exhibited larger grain size and better crystallinity. Optical studies revealed the transparency of the films in the wavelength range of 300-1100 nm. Surface morphology studies showed low roughness values and fine spherical grains.
Article
Chemistry, Physical
Preeti Lata Mahapatra, Sagnik Das, Partha Pratim Mondal, Tanushri Das, Debdulal Saha, Mrinal Pal
Summary: This paper presents the development of a microporous Copper Chromite (CuCr2O4) thick film based capacitive humidity sensor with high sensitivity and fast response in the range of 1%-98% RH, suitable for commercial applications such as food packaging and tea industry.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Tiankun Wang, Sha Shiong Ng, Way Foong Lim, Hock Jin Quah, Muhammad Fadhirul Izwan Bin Abdul Malik, Wei Sea Chang
Summary: High-contrast green luminescence was achieved in molybdenum (Mo)-doped beta-phase gallium oxide (/3-Ga2O3) through sol-gel spin coating. The doping did not significantly alter the crystal structure, surface morphology, and energy bandgap of the films. The Mo-doped films exhibited a beta phase structure with smooth surface morphology, and the luminescence changed from blue to green, with improved contrast.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Dong Hyun Kim, Dong Wook Lee, Jin Young Oh, Jonghoon Won, Dai-Hyun Kim, Yang Liu, Dae-Shik Seo
Summary: The study demonstrated that a bismuth-lanthanum-tin oxide film fabricated via brush coating showed excellent performance in LC alignment, resulting in stable LC orientation. The micro-/nanogroove structure formed most clearly after curing at 180 degrees Celsius, facilitating stable LC orientation.
Article
Materials Science, Multidisciplinary
Naiyer Shokri, Mir Saman Safavi, Mohamadreza Etminanfar, Frank C. Walsh, Jafar Khalil-Allafi
Summary: NiTi shape memory alloy has broad applications in orthopedics and dentistry due to its superelasticity, shape memory effect, high corrosion performance, and biocompatibility. New horizons for biomedical applications of NiTi can be opened by improving its corrosion resistance and surface characteristics through appropriate pre-treatments. The type of pre-treatment influences the final properties of coated NiTi, with different treatments showing different advantages such as superior corrosion behavior, in-vitro bioactivity, or hydrophilicity. The deposition of a highly crystalline nano-HAp coating enhances the final characteristics of pre-treated NiTi, leading to superior corrosion resistance compared to mechanically polished NiTi.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Physics, Condensed Matter
Akshay Surani, Davit Dhruv, Divyarajsinh Zala, D. K. Chudasama, Kush Vachhani, Faizal Mirza, Himanshu Dadhich, P. S. Solanki, N. A. Shah, A. D. Joshi
Summary: In this study, the structural, microstructural, dielectric and impedance properties of low cost Bi0.85La0.15FeO3 thin film grown on FTO glass substrate were investigated. The growth of the film was confirmed by XRD analysis, and surface morphology was examined using scanning probe method. The results showed that the film exhibited complex magnetic field dependent dielectric behavior, indicating the presence of magnetoelectric coupling between spin and lattice.
PHYSICA B-CONDENSED MATTER
(2022)
Article
Materials Science, Textiles
Cuiyu Li, Rui Su, Xiaoyu Li, Linxin Wang
Summary: In this study, silica-coated zinc oxide nanoparticles were successfully prepared to improve the interfacial properties between fiber and resin, leading to increased bonding strength between fiber and epoxy resin.
FIBERS AND POLYMERS
(2022)
Article
Chemistry, Physical
Mohini Panday, Gaurav K. Upadhyay, L. P. Purohit
Summary: Antimony-doped SnO2 thin films were prepared and tested as gas and humidity sensors. The results showed that the doping of antimony can significantly affect the optical and electrical properties of the films, leading to excellent sensing response at different temperatures and humidities.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Ceramics
Juan Luis Pantoja-Pertegal, Antonio Diaz-Parralejo, Antonio Macias-Garcia, J. Sanchez-Gonzalez, Eduardo M. Cuerda-Correa
Summary: This work focuses on the design, preparation, and characterization of YSZ coatings using the EPD technique. The study optimized the electrophoretic characteristics of YSZ suspensions, analyzed the correlation between experimental results and theoretical values, and achieved optimal coating results by thermal treatment of stainless steel substrates.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Analytical
Ajeet Singh, Shakti Singh, B. C. Yadav
Summary: A self-powered carbon dioxide (CO2) gas sensor based on CeO2/CdS triboelectric nanogenerator (TENG) was developed, which exhibited good sensitivity and selectivity. The resistive type and self-powered CO2 gas sensing performance of CeO2, CdS, and CeO2/CdS nanomaterials were compared. CeO2/CdS heterostructure was confirmed to form a type II heterojunction through XPS analysis. The CeO2/CdS showed a regular nanosphere morphology with a size range of 30-60 nm. The resistive type CO2 gas sensor achieved a sensor response of 3.96 at 1000 ppm CO2, while the self-powered CO2 gas sensor achieved a response of 30 at the same concentration. The minimum response and recovery times for 250 ppm CO2 were found to be 1835 and 835 ms, respectively. The self-powered CeO2/CdS TENG-based CO2 sensor demonstrated high sensitivity, selectivity, and quick responsiveness.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Chemistry, Multidisciplinary
Bhupendra Pratap Singh, Samiksha Sikarwar, Shikha Agarwal, Dharmendra Pratap Singh, Kamal Kumar Pandey, Rajiv Manohar
Summary: There is a growing demand for functional materials that can adjust light-emissive properties in organic optoelectronic devices. In this study, highly emissive and aggregation-induced emission (AIE) electroluminescent composite systems composed of a blend of nematic liquid crystals (NLC) and polyethylene-functionalized gold nanospheres (GNSs) are presented. The findings show superior electro-optical properties, such as a reduction in threshold voltage by approximately 24%. Additionally, the fall time and rotational viscosity are significantly reduced for different concentrations of GNS-blended liquid crystal cells. The increased UV absorbance and enhanced luminescence properties are attributed to surface plasmon resonance and AIE effect, making them suitable for new-age display applications.
Article
Chemistry, Inorganic & Nuclear
Artur Dzeranov, Lyubov Bondarenko, Denis Pankratov, Gulzhian Dzhardimalieva, Sharipa Jorobekova, Daniel Saman, Kamila Kydralieva
Summary: The use of iron oxide nanoparticles, particularly for commercial purposes, requires strict preservation of their phase composition. The choice of nanoparticle modifier and modification conditions is crucial due to their sensitivity to oxygen under real conditions. This study investigated the phase composition changes of magnetite nanoparticles after modification and oxidation, and found that the nonstoichiometric nature of the nanoparticles increased. Furthermore, both XRD and Mössbauer spectroscopy provided valuable information about the ionic composition and distribution of iron ions in the nanoparticles.
Article
Materials Science, Multidisciplinary
Peramjeet Singh, N. K. Pandey, V. V. Siva Kumar, Vernica Verma, Ajeet Singh, Priya Gupta, B. C. Yadav
Summary: This study aimed to investigate the impact of annealing temperature on the characteristics of MoO3. Nanoparticles of MoO3 were synthesized using hydrothermal technique and made into thin films via spin coating method. The films were annealed at different temperatures and their structural, morphological, electrical, and optical properties were examined. The films were also tested as sensors for liquefied petroleum gas and humidity. The results showed that the annealing temperature affected the properties of the films, and the film annealed at 600 degrees C exhibited the best sensing response to the gas and humidity.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)
Article
Chemistry, Physical
Nirbhay Singh, Shweta Tanwar, Pradip Kumar, A. L. Sharma, B. C. Yadav
Summary: A cost-effective, environment-friendly polyaniline-wrapped activated carbon-FeOOH ternary composite electrode is developed for efficient and sustainable energy storage. The electrode shows structural stability and potential as an energy storage device. The ternary composite utilizes polyaniline maximum and exhibits high capacitance and electrochemical performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Electrical & Electronic
Rajnish Raj, Pooja Lohia, D. K. Dwivedi, Pravin Kumar Singh, Arpit Verma, B. C. Yadav
Summary: This research presents a synthesis approach for a highly responsive and cost-effective Ge-Sb-S nanomaterial for photodetection system. The characterization of the samples was performed using various techniques including XRD and SEM. The photodetector device made of (GeS2)(40)(Sb2S3)(60) showed the highest responsivity, EQE, and detectivity at a bias potential of 5 V.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Materials Science, Multidisciplinary
Aastha Singh, Ajeet Singh, Arpit Verma, Bal Chandra Yadav, Vishal Chaudhary
Summary: This study reports on the development of an energy-efficient and economic ammonia-detecting chemiresistor using hydrothermally engineered ZnCo2O4 nanoflakes. The morphology and crystal structure of the nanoflakes were examined, and the chemiresistor demonstrated superior sensing performance in terms of response and recovery times at different concentrations of ammonia. The high surface area and stable crystal structure of the ZnCo2O4 nanoflakes contribute to the enhanced sensing performance.
ECS JOURNAL OF SOLID STATE SCIENCE AND TECHNOLOGY
(2023)
Article
Energy & Fuels
Jitesh Pani, Devkaran Maru, Priyanka Chaudhary, Jitendra Gangwar, Kanapuram Uday Kumar, Bal Chandra Yadav, Hitesh Borkar
Summary: In this study, MoS2 nanostructures with improved interlayer spacing were synthesized through different reaction times. The synthesized MoS2 structures exhibited 3D flower-like and ultrathin 2D sheet-like morphologies. The enhanced interlayer spacing in the nanostructures was confirmed through various analytical techniques. The MoS2 nanoflower demonstrated excellent physicochemical properties and showed high specific capacitance and cyclic stability.
Article
Chemistry, Multidisciplinary
Yurii S. S. Bukichev, Lyudmila M. M. Bogdanova, Valentina A. A. Lesnichaya, Nikita V. V. Chukanov, Nina D. D. Golubeva, Gulzhian I. I. Dzhardimalieva
Summary: In this study, TiO2/epoxy nanocomposites with different contents and sizes of nanoparticles were prepared using stepwise curing and ultrasonic dispersion techniques. The resulting nanocomposites were characterized by various analytical methods. The results showed that by controlling the curing mode, ultrasonic dispersion, and the content and dispersity of TiO2 nanoparticles, epoxy nanocomposites with improved mechanical properties and impact strength can be obtained.
APPLIED SCIENCES-BASEL
(2023)
Article
Environmental Sciences
Maikesh Mathur, Arpit Verma, Ajeet Singh, B. C. Yadav, Vishal Chaudhary
Summary: A nano-enabled low-trace monitoring system has been developed for detecting acetone, which has the potential to revolutionize non-invasive diagnosis of human diabetes and environmental monitoring. The system utilizes CuMoO4 nanorods as a sensing platform and demonstrates excellent acetone detection performance, with rapid response time and long-term stability. This work offers a promising alternative to invasive biomedical diagnostics and opens new possibilities for nanoenabled acetone monitoring technologies.
ENVIRONMENTAL RESEARCH
(2023)
Article
Chemistry, Analytical
Marina O. Gorbunova, Igor E. Uflyand, Vladimir A. Zhinzhilo, Anastasiya O. Zarubina, Tatiana S. Kolesnikova, Maxim G. Spirin, Gulzhian I. Dzhardimalieva
Summary: Metal-containing nanocomposites have attracted attention in recent years. This study focused on the preparation and application of silver-containing nanocomposites derived from silver fumarate for reactive indicator papers (RIPs). The study explored the optical properties of the nanocomposites and developed a method for determining chloride ions using the color change of RIPs interacting with chlorine vapor. The technique showed promising results in the analysis of natural waters, pharmaceuticals, and food products.
Article
Energy & Fuels
Nirbhay Singh, Shweta Tanwar, A. L. Sharma, B. C. Yadav
Summary: Supercapacitors are the most dependent storage technologies, offering faster energy supply, sustainability, and high-capacity retaining. This research focuses on the development of a sustainable activated carbon-based iron oxyhydroxide material prepared via a low-temperature hydrothermal technique. The material exhibits excellent cyclic stability, elemental composition, and electrochemical performance.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Inorganic & Nuclear
Gulsara D. Kugabaeva, Kamila A. Kydralieva, Lyubov S. Bondarenko, Rose K. Baimuratova, Dmitry Yu. Karpenkov, Ekaterina A. Golovkova, Pavel N. Degtyarenko, Nina D. Golubeva, Igor E. Uflyand, Gulzhian I. Dzhardimalieva
Summary: This paper proposes an original approach to prepare FeCo- and FeNi/N-doped carbon nanocomposites, and studies their phase composition, structure, microstructure, and magnetic characteristics. It is found that the FeCo/N-C nanocomposites exhibit exchange bias behavior, while the FeNi/N-C nanocomposites are ferromagnetically ordered.
Correction
Materials Science, Multidisciplinary
Sarvesh Kumar Avinashi, Ajaz Hussain, Kuldeep Kumar, Bal Chandra Yadav, Chandkiram Gautam
OXFORD OPEN MATERIALS SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Arpit Verma, Anshika Singh, Priyanka Chaudhary, Ravi Kant Tripathi, B. C. Yadav, Pratima Chauhan, Devesh Kumar
Summary: In this research, we investigated the photodetection mechanism of WS2 nanosheets embedded in a polyvinyl alcohol matrix. The nanosheets were synthesized and embedded in the matrix using a solution method. The SEM micrographs confirmed the successful incorporation of WS2 nanosheets in the matrix. XRD results revealed the crystal structure of the nanosheets, while a Tauc plot showed the optical band gap energy. The zeta potentials and photodetection measurements were also analyzed.
MATERIALS ADVANCES
(2023)
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)
