Article
Energy & Fuels
Irsa Talib, Muzammil Yasin, Jawad Hussain, Raphael Uwamahoro
Summary: This study validated the performance of a coal-fired water tube boiler and optimized its parameters for better energy efficiency. The findings suggest that specific control parameters can greatly improve overall performance.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2023)
Article
Thermodynamics
Chun Lou, Yang Pu, Yonggang Zhao, Yang Bai, Bin Yao, Dunxi Yu
Summary: Measurement of time-resolved alkali metals release is crucial to mitigate the problems caused by alkali metals during coal combustion. The Flame Emission Spectroscopy (FES) method proposed in this paper can accurately measure the release of sodium (Na) and distinguish different stages of release.
PROCEEDINGS OF THE COMBUSTION INSTITUTE
(2021)
Article
Polymer Science
Turki A. Bakhsh, Abdulaziz Alfaifi, Yousef Alghamdi, Mohannad Nassar, Roaa A. Abuljadyel
Summary: This study aimed to compare the increase in pulp temperature during light curing of different composite thicknesses in deep class I cavities using two thermal sensing tools. The results showed no significant differences within the same group using either the thermocouple or infrared thermal camera. The bulk-fill technique resulted in the lowest heat generation among the groups. Increasing the light-curing time and the number of composite increments was directly correlated with increases in intra-pulpal temperature.
Article
Remote Sensing
Elnaz Neinavaz, Martin Schlerf, Roshanak Darvishzadeh, Max Gerhards, Andrew K. Skidmore
Summary: Vegetation plays a crucial role in ecosystem functioning, and thermal infrared remote sensing data provides unique insights for studying vegetation at leaf and canopy levels.
INTERNATIONAL JOURNAL OF APPLIED EARTH OBSERVATION AND GEOINFORMATION
(2021)
Article
Engineering, Electrical & Electronic
Semih Taniker, Vincenzo Costanza, Paolo Celli, Chiara Daraio
Summary: We propose the realization of capacitive temperature sensors based on the concept of displacement amplification. Our design utilizes high CTE metallic layers and a low CTE dielectric layer to achieve large out-of-plane displacements and capacitive changes as the temperature increases.
IEEE SENSORS JOURNAL
(2022)
Article
Engineering, Electrical & Electronic
Qixian Xie, Jiu Zhang, Zhingzhong Mao
Summary: The study explored a new small sensor for measuring the pouring temperature of molten steel. By combining the stopper and temperature sensor, the sensor overcame the limitations of traditional sensors. The research indicated that the new sensor could improve the accuracy of solidification control and enhance product quality.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2021)
Article
Chemistry, Analytical
Xing Xiao, Cheng Li, Shang-Chun Fan, Yu-Jian Liu, Yang Liu
Summary: This paper presents an optical-thermally actuated multi-layer graphene resonator for humidity sensing. The 10-layered graphene resonator, with a diameter of 125 μm, was clamped on the fiber ferrule end face and actuated to vibrate using an intensity-modulated laser. The humidity sensing experiment showed a humidity sensitivity of up to 350 Hz/%RH, which was 10 times higher than the Quartz Crystal Microbalance (QCM)-based humidity sensors.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Energy & Fuels
Zikangping Wang, Zhi-Hua Xue, Ke-Juan Meng, Xue-Xue Zhang, Qi-Long Yan
Summary: The study showed that qy-HMX-1 and qy-HMX-2 can be used as components of composite propellants, improving thermal stability and energy density, with smaller particle size of reaction products. Under the action of specific catalysts, qy-HMX-1 also demonstrated higher heat of explosion and burn rate.
Article
Environmental Sciences
Xiaodong Zhang, Ji Zhou, Shunlin Liang, Dongdong Wang
Summary: This study introduces a novel method for merging reanalyzed and thermal infrared remote sensing data to reconstruct all-weather land surface temperature (LST). Results show that this method outperforms current merging methods in terms of accuracy and image quality, with higher spatial completeness, indicating its potential for generating long-term all-weather LST records at moderate to high spatiotemporal resolutions.
REMOTE SENSING OF ENVIRONMENT
(2021)
Article
Chemistry, Physical
Yong Qin, Ali Reza Kamali
Summary: The layer-structured calcium silicide (CaSi2) prepared using combustion synthesis (CS) method exhibits higher purity, loosely stacked structure, and larger surface area compared to commercial CaSi2. Thermal analysis indicates a melting event of CS-CaSi2 at 1037°C under argon, and oxidation at higher temperatures under air. The oxidation process involves two stages, related to the oxidation of calcium content and silicon in CaSi2. Li-storage performances of commercial CaSi2 and CS-CaSi2 are evaluated.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Engineering, Electrical & Electronic
Armando Ferreira, Marcio A. Correa, Joao Paulo Silva, Daniela Correia, Senentxu Lanceros-Mendez, Filipe Vaz
Summary: This study investigates the thermo-resistive effect and structural properties of CrNx films, revealing a novel temperature sensing capability. The preparation technique of CrNx coatings opens up new possibilities for their application in resistive temperature detector (RTD) systems.
SENSORS AND ACTUATORS A-PHYSICAL
(2021)
Article
Engineering, Environmental
Xiaowei Zhai, Le Hao, Teng Ma, Bobo Song, Kai Wang, Jinlei Luo
Summary: In this study, a soft sensor model based on a hybrid-kernel-function support vector machine with an improved genetic algorithm is proposed to investigate the nonlinear relationship between the concentration of a characteristic gas of coal spontaneous combustion and the temperature of the coal body. The experimental results show that the evaluation indexes of the hybrid-kernel-function model are better than those of the single-kernel function, and the model with hyperparameters automatically optimized by the genetic algorithm has the best performance, further verifying the nonlinear relationship between the gas concentration and coal temperature.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Article
Materials Science, Ceramics
Yang Lu, Difan Lin, Yonghang Li, Hua Zou, Hongyu Lu, Jiang Zhu, Shucai Liu, Jun Li, Qiwei Zhang
Summary: To overcome the thermal quenching issue in thermometers, a negative thermal expansion (NTE) thermometer based on Sc2Mo3O12:Nd3+/Yb3+/Er3+ phosphor was fabricated. The upconversion (UC) emissions of Er3+ ions showed thermal enhancement, with its 524 nm emission increasing 10-fold as the temperature increased from 310 to 670 K under 808 nm excitation. The temperature sensing behavior was also investigated, and it was found that the fluorescence intensity ratio (FIR) of 524-559 nm showed a linear relationship with temperature over a wide range of 310-790 K, with a maximum relative sensitivity of 0.84% K-1 at 310 K. These results indicate that this phosphor not only achieves high sensitivity, but also exhibits excellent performance at high temperature due to its thermal enhancement.
CERAMICS INTERNATIONAL
(2023)
Article
Engineering, Electrical & Electronic
Wenge Zhu, Qi Zhang, Mark Matlin, Yizheng Chen, Yongji Wu, Xuran Zhu, Huijuan Zhao, Rich Pollack, Hai Xiao
Summary: Benefitting from the advancement of digital electronics in the 20(th) century, sensors have gradually evolved from analog to digital, with the concept of passive digital sensing eliminating the need for a power supply and improving measurement sensitivity and distance.
IEEE SENSORS JOURNAL
(2021)
Article
Thermodynamics
Ziming Yan, Brian Gainey, James Gohn, Deivanayagam Hariharan, John Saputo, Carl Schmidt, Felipe Caliari, Sanjay Sampath, Benjamin Lawler
Summary: The study demonstrates the feasibility and benefits of thick thermal barrier coatings with advanced low-temperature combustion concepts, showing increased combustion efficiency and fuel conversion efficiency. The thick TBC extends the low load limit for both gasoline and wet ethanol cases, without observing deterioration of the high load limit. Gasoline exhibits the largest benefits at low load, while wet ethanol experiences the largest benefits at mid-to-high load.
Article
Materials Science, Ceramics
Fengfeng Chi, Liangliang Pan, Bin Jiang, Zhangchao Ji, Jie Cheng, Bing Wang, Xiantao Wei, Shengli Liu
Summary: Tb3+ and Eu3+ doped La4GeO8 phosphors with multicolor emission were synthesized and their photoluminescence properties were investigated. The energy transfer from Tb3+ to Eu3+ in La4GeO8 is attributed to quadrupole-quadrupole interaction. The La4GeO8:0.07Tb3+,0.01Eu3+ phosphor exhibits good thermal stability with activation energies of 0.186 eV and 0.187 eV for Tb3+ and Eu3+ ions, respectively. By adjusting the content ratio of Eu3+ to Tb3+, the La4GeO8:Tb3+,Eu3+ phosphors can achieve multicolor luminescence and tunable chromaticity. These findings suggest that La4GeO8:Tb3+,Eu3+ phosphors are promising for solid-state lighting applications.
CERAMICS INTERNATIONAL
(2023)
Article
Optics
Fengfeng Chi, Wenjuan Dai, Liting Qiu, Shengli Liu, Xiantao Wei, Yonghu Chen, Min Yin
Summary: In this study, a Cr3+-activated Lu2CaAl4GeO12 phosphor with far-red emitting was prepared, and its thermally stable luminescence was observed.
JOURNAL OF LUMINESCENCE
(2022)
Article
Physics, Multidisciplinary
Peiran Yin, Rui Li, Chengjiang Yin, Xiangyu Xu, Xiang Bian, Han Xie, Chang-Kui Duan, Pu Huang, Jian-hua He, Jiangfeng Du
Summary: In this study, the chameleon theory as a candidate explanation for dark energy is ruled out by experimental tests, providing decisive conclusions and demonstrating the reliability of laboratory experiments for uncovering the nature of dark energy in the future.
Article
Chemistry, Inorganic & Nuclear
Fengfeng Chi, Zhangchao Ji, Qian Liu, Bin Jiang, Bing Wang, Jie Cheng, Bin Li, Shengli Liu, Xiantao Wei
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Physical
Liang Li, Qianwen Cao, Jing Xie, Wenming Wang, Jiajia Wang, Yan Pan, Xiantao Wei, Yong Li
Summary: Researchers successfully prepared a far-red emitting phosphor doped with Mn4+ ions, which can be efficiently excited and emit intense far-red light. The crystalline properties and luminescence performance were studied in detail, and the crystalline field effect and concentration quenching mechanism of Mn4+ ions in the matrix were explored. The phosphor exhibited high internal quantum efficiency, color purity, and activation energy, making it suitable for the preparation of LED devices for plant cultivation.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Wenming Wang, Liang Li, Hongmei Chen, Xiantao Wei, Juanying Jia, Yan Pan, Yong Li
Summary: In this study, Yb3+/Er3+ co-doped YOF glass ceramics were prepared and their luminescence and temperature sensing properties were investigated under 980 nm excitation. The fluorescence intensity ratio (FIR) of the thermal couple energy level (TCEL) and non-thermal couple energy level (NTCEL) was used to evaluate the temperature sensing sensitivity. The increase in pump power resulted in a decrease in relative sensitivity (SR) due to the thermal effect and increased rate of energy transfer and non-radiative relaxation process between dopants and host. The maximum relative sensitivity of this sample reached 1.59 x 10-2 K-1 at 310 K with a pump power of 0.2 W, indicating the prospective application of this glass ceramic in optical thermometry.
Article
Physics, Applied
Zhi Cheng, Xiangyu Ye, Jiandong Wu, Pei Yu, Cheng-Jie Wang, Mengqi Wang, Changkui Duan, Ya Wang, Fazhan Shi, Changlin Tian, Hongwei Chen, Pengfei Wang, Jiangfen Du
Summary: Nanoscale sensing and imaging of electromagnetic field can be achieved by utilizing the forbidden magnetic dipole transition of a single shallow nitrogen-vacancy center in diamond. The detection of rf electric fields at frequencies ranging from 13.85 MHz to 2.02 GHz is successfully demonstrated, with a sensitivity of 265 V cm-1 Hz-1/2 for amplitude measurement and a standard deviation of 0.2 degrees for phase measurement. The potential applications of such nanoscale sensor in science and technology are discussed.
PHYSICAL REVIEW APPLIED
(2023)
Article
Chemistry, Physical
Mingzhe Liu, Hei-Yui Kai, Anjun Huang, Chang-Kui Duan, Ka-Leung Wong, Peter A. Tanner
Summary: First-principles calculations were conducted to investigate the doping of bismuth and iron in the lattices of BaAl12O19 (BAO) and CaAl12O19 (CAO). Experimental data for the optical spectra of CAO were provided to support the calculation results. The presence of trace impurities in undoped CAO samples, such as Mn4+, was observed to contribute to luminescence bands. The emission wavelengths of around 810 nm in CAO were found to be associated with Fe3+ and Bi3+ dopants.
CHEMISTRY OF MATERIALS
(2023)
Article
Chemistry, Physical
Zhicheng Liao, Liting Qiu, Xiantao Wei, Yonghu Chen
Summary: A novel heat-quenching resistant phosphor Ba2YAlO5 doped with Bi3+ was successfully synthesized using the traditional high temperature solid-state method. The crystal structure and luminescence properties were characterized by XRD, SEM, DR spectra, and PL spectra. The phosphor exhibited a broad-band yellow light with a peak at 571 nm and a FWHM of 125 nm under 324 nm excitation. The integrated emission intensity at 560 K was still close to that at room temperature, indicating its excellent thermal stability. Ba2YAlO5: Bi3+ also showed yellowish white light with high color temperature, making it a promising fluorescent powder for high-power devices.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Optics
Jun Wen, Jing Gao, Guisheng Jiang, Xiaoxiao Huang, Qiang Wang, Chenlong Wei, Lixin Ning, Chang-Kui Duan
Summary: Theoretical studies were conducted to investigate the thermodynamic stabilities and luminescent properties of defects and lanthanide ions in BaZrSi3O9, aiming to gain a better understanding of the luminescence mechanisms in undoped and lanthanide-doped BaZrSi3O9.
JOURNAL OF LUMINESCENCE
(2023)
Article
Chemistry, Physical
Mingzhe Liu, Chang-Kui Duan, Ruijie Hao, Min Yin
Summary: A variety of halide perovskites doped with ns2 ions have been studied. First-principles calculations were performed on Cs2SnCl6 and Cs2HfCl6 to explore self-trapped excitons, defects, and luminescent centers. The results provide a consistent understanding of the experimental phenomena and reveal differences between Cs2SnCl6 and Cs2(Hf/Zr)Cl6, which can benefit the design and optimization of metal halide perovskites.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Physics, Multidisciplinary
Han Xie, Yanan Li, Rui Li, Yinchun Leng, Yiming Chen, Lei Wang, Dingjiang Long, Xiang Bian, Chang-Kui Duan, Peiran Yin, Pu Huang, Jiangfeng Du
Summary: By utilizing an engineering conductive geometry scheme, we effectively reduce the mechanical dissipation of a diamagnetically levitated oscillator made of pyrolytic graphite, improving its levitation capability. Through experimental demonstration, we show that the specially designed conductive geometry significantly reduces eddy current damping, with a higher reduction factor for denser engraving patterns. Under high vacuum and room temperature conditions, we reduce eddy current damping by a factor of 50. This work presents a new approach to achieve ultralow mechanical dissipation and strong levitation capability in diamagnetically levitated oscillators, providing a candidate platform for studying a broad range of fundamental physics.
PHYSICAL REVIEW RESEARCH
(2023)
Article
Materials Science, Multidisciplinary
Haoming Xu, Weiguo Jing, Mingzhe Liu, Min Yin, Chang-Kui Duan
Summary: The abnormal self-reduction of trivalent lanthanides in borates, particularly in SrB4O7, has been reported for many years, but only an explanatory description has been provided. Through calculations of formation energies in SrB4O7, we offer an explanation for the mechanisms behind the self-reduction phenomenon. Additionally, we present the trends of the binding energies of divalent lanthanides, which align well with and support the results obtained by extrapolating experimental data using the semiempirical chemical shift model. Our findings demonstrate that calculations conducted using the supercell method and projector augmented wave pseudopotentials can effectively interpret reduction and charge-transfer phenomena, and serve as a basis for the design of lanthanide-doped optical materials.
Article
Materials Science, Multidisciplinary
Zhaoyang Feng, Chang-Kui Duan
Summary: In this study, first-principles calculations were used to investigate the luminescence properties of four different ternary oxide materials, namely (Sr/Ca)Sb2O6, (Sr/Ca)2Sb2O7, (Sr/Ca)SnO3, and (Sr/Ca)Ga2O4, doped with bismuth ions. The effects of bismuth doping on the materials' luminescence properties were analyzed by studying intrinsic defects and self-trapped holes. The transitions associated with bismuth ions in different materials were also identified. The insights gained from this study are important for understanding the luminescence mechanisms of insulating bismuth-doped ternary oxides.
Article
Materials Science, Multidisciplinary
Mingzhe Liu, Chang-Kui Duan, Peter A. Tanner, Chong-Geng Ma, Xiantao Wei, Min Yin
Summary: This study reveals the mechanisms of photoluminescence in doped lead-free halide perovskites through theoretical calculations, showing that the main photoluminescence can be attributed to highly localized self-trapped excitons. The research may inspire further understanding of the photoluminescence mechanisms in other materials.
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)