Article
Environmental Sciences
Tianli Ma, Cheng Cheng, Lizhen Xing, Yuepeng Sun, Guangxue Wu
Summary: A better understanding of r-/K-strategists nitrifiers is crucial for optimizing the design and operation of bioprocesses for wastewater treatment. This study investigated the nitrite oxidation biokinetics, biofilm properties, microbial community, and quorum sensing (QS) in nitrifying biofilms from a continuously flow reactor (CFR) and a sequencing batch reactor (SBR). The results revealed different nitrite half saturation constants and dominant nitrite-oxidizing taxa in the CFR and SBR. Additionally, the biofilm properties and AHL signaling substances were significantly different between the two reactors. The insights gained from this study provide valuable information on the molecular mechanisms and adaptation of Nitrospira in different biokinetic environments.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Tianli Ma, Cheng Cheng, Lizhen Xing, Yuepeng Sun, Guangxue Wu
Summary: A better understanding of r-/K-strategists nitrifiers will help to balance the design and operation of bioprocesses for efficient pollution removal from wastewater. The study investigated the biokinetics, biofilm property, microbial community, and quorum sensing (QS) of nitrifying biofilm in a continuously flow reactor (CFR) and a sequencing batch reactor (SBR). Results showed that Nitrospira and Candidatus Nitrospira defluvii were the dominant nitrite-oxidizing taxa in both reactors. The biofilm in SBR had higher ratios of polysaccharide and protein in extracellular polymeric substances and higher thickness compared to CFR. AHLs-based QS might affect the formation of nitrifying biofilm and contribute to the different biokinetics of Nitrospira in CFR and SBR.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Chemistry, Multidisciplinary
Lucia Casali, Torvid Feiler, Maria Heilmann, Dario Braga, Franziska Emmerling, Fabrizia Grepioni
Summary: In situ monitoring revealed the effect of milling conditions on mechanochemical reactions and the formation of different products. Two novel crystalline forms were discovered, and thorough characterization of these compounds was performed.
Article
Chemistry, Analytical
Somayeh Alimohammadi, Mohammad Ali Kiani, Mohammad Imani, Hashem Rafii-Tabar, Pezhman Sasanpour
Summary: A novel carbon fiber microsensor (CFMS) is introduced for in situ measurement of corticosteroid concentration in the cochlear implant structure. The septum-insulated microsensor can monitor corticosteroid concentration in the perilymph fluid without the need for sampling from the inner ear fluid and subsequent ex vivo analysis.
Article
Materials Science, Composites
Yinghong Yu, Xiao Liu, Xiyue Cui, Yishou Wang, Xinlin Qing
Summary: This study developed an innovative multifunctional piezoelectric-fiber hybrid sensor network for comprehensive monitoring of multiple physical quantities during the curing process of thick carbon fiber-reinforced polymer (CFRP) composites. Three different approaches based on non-invasive and integrated piezoelectric lead-zirconate-titanate (PZT) sensor network were effectively developed to track the degree of cure and key steps using guided wave velocity and amplitude. The proposed sensor network demonstrated its effectiveness in in-situ and real-time monitoring of multiple physical quantities during the curing cycle, contributing to the advancement in smart manufacturing and life-cycle structural health monitoring of composites.
COMPOSITES SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Analytical
Yuxian Liao, Ting Jing, Fan Zhang, Pingang He
Summary: A dual-functional K+ ion-selective electrode was developed for in situ monitoring of extracellular K+ in breast cancer cell lines, showing different responses to electrical stimulation or pH changes. The study provides insights into the microenvironment influence on K+ outflow and the possible mechanism of potassium channels.
ANALYTICAL CHEMISTRY
(2022)
Article
Biophysics
Dayakar Thatikayala, Booki Min
Summary: A novel biofilm-derived activated carbon electrode was successfully fabricated for electrochemical nitrite sensing in water samples. The electrode exhibited a low detection limit, high sensitivity, good stability, reproducibility, and demonstrated promising results in real-time testing, indicating its potential in environmental and wastewater applications.
BIOSENSORS & BIOELECTRONICS
(2023)
Article
Environmental Sciences
Jun-Nan Huang, Bin Wen, Lin Miao, Xin Liu, Zhong-Jun Li, Teng-Fei Ma, Lei Xu, Jian-Zhong Gao, Zai-Zhong Chen
Summary: The study explores the role of the plastisphere, biofilm formation on microplastics, in driving nitrogen biogeochemical cycle in aquaculture ponds. The results show that the presence of plastisphere leads to decreased ammonia concentrations and increased nitrification rates. The community structure and function of the plastisphere play a crucial role in promoting nitrification in a habitat-dependent manner.
Article
Instruments & Instrumentation
Paulina Listewnik, Mikhael Bechelany, Malgorzata Szczerska
Summary: The study presents the use of a fiber-optic microstructure with thin zinc oxide coating as a temperature sensor for supercapacitors. The sensor, built with standard optical telecommunication fibers, can measure temperatures ranging from 30 degrees C to 90 degrees C with a resolution of 5 degrees C. The sensitivity of temperature measurement is approximately 109.6 nW degrees C-1, and the sensor's fitting achieved a correlation coefficient R (2) = 0.97.
SMART MATERIALS AND STRUCTURES
(2021)
Article
Chemistry, Multidisciplinary
Sadegh Hasanpour, Armin Rashidi, Tavia Walsh, Erik Pagan, Abbas S. Milani, Mohsen Akbari, Ned Djilali
Summary: Temperature and humidity measurements are crucial in electrochemical energy devices to optimize performance and prevent malfunctions. Thread-based sensors offer a promising approach for in situ monitoring of temperature and RH. Threads can be integrated into GDL structures to create water highways while different coatings enable separate temperature and humidity sensing.
Article
Chemistry, Analytical
Daniele Zappi, Edith Coronado, Vice Soljan, Giovanni Basile, Gabriele Varani, Mehmet Turemis, Maria Teresa Giardi
Summary: Monitoring influent toxic chemicals is essential for stable operation of wastewater treatment plants to avoid upset of nitrification process. Toxic chemical compounds can interfere with biological nitrogen removal, thus affecting plant efficiency and effluent water quality. The developed bacterial bioassays can detect inhibition of nitrification process in wastewater, proving to be important for plant operations.
Article
Chemistry, Analytical
Lipeng Pan, Kailun Huang, Guangzong Min, Xiaobao Li, Junjun Shao, Fangxing Ma, Lingqing Kong, Mingye Zou, Guoqing Meng, Wei Chen, Likun Yang, Xiang-Yang Liu, Naibo Lin
Summary: The study introduces a simple and compact fiber optic sensor for the detection and quantification of TYR. The sensor has high sensitivity and portability, making it a convenient and practical point of care detection method.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Engineering, Environmental
Xiaodan Gu, Yong Huang, Yuting Hu, Wenhui Huang, Miao Zhang
Summary: Stable partial nitrification is still challenging to achieve under mainstream conditions. The study found that a low nitrite concentration is crucial for suppressing the growth of nitrite-oxidizing bacteria (NOB), and there is a significant correlation between nitrite levels and the percentage of NOB in bacterial communities.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Environmental Sciences
Xiaoyun Li, Xu Yang, Mengyao Cui, Yiliang Liu, Jingting Wang, Lixia Zhang, Guoqiang Zhan
Summary: This study focuses on the design and development of a highly specific and sensitive biofilm sensor for nitrite detection in water. The sensor utilizes the competition of oxygen between nitrite-oxidizing bacteria and cathode oxygen reduction for nitrite detection. The sensor shows a linear response and high selectivity for nitrite, and exhibits stability in long-term detection.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Chemistry, Analytical
Tiago Monteiro, Candida Dias, Catia F. Lourenco, Ana Ledo, Rui M. Barbosa, M. Gabriela Almeida
Summary: Impaired blood flow to the brain can lead to cerebral ischemia, resulting in neuronal injury or death. A new method using fast-scan cyclic voltammetry and carbon microfiber electrodes has been proposed for real-time measurement of nitrite concentration in the brain extracellular space, providing valuable insights into the role of this inorganic anion in brain redox signaling.
Article
Engineering, Environmental
Chiqian Zhang, Ian Struewing, Jatin H. Mistry, David G. Wahman, Jonathan Pressman, Jingrang Lu
Summary: This study demonstrates that Legionella is a dominant water-based opportunistic pathogen in four full-scale drinking water distribution systems in the United States, showing significant correlations with other pathogens and bacteria. The concentrations of OPs show strong seasonal variations and are influenced by hydraulic residence time, indicating the importance of maintaining disinfectant residuals for OP control in DWDSs.
Article
Environmental Sciences
Mohsen Pilevar, Jae-Hoon Hwang, Jordan Stanberry, Vasileios Anagnostopoulos, Karin Chumbimuni-Torres, Woo Hyoung Lee
Summary: This study developed a modified electrode by coating Bi-chitosan nanocomposite on a glassy carbon electrode for electrochemical detection of Ni(II) and Co(II). The combination of SWAdCSV technique and DMG as a chelating agent showed good selectivity and sensitivity for Ni(II) and Co(II) measurements. The developed sensor demonstrated excellent performance in the detection of Ni(II) and Co(II) in natural water samples.
Article
Environmental Sciences
Jae-Hoon Hwang, Yuen Yee Li Sip, Keug Tae Kim, Gaehee Han, Kelsey L. Rodriguez, David W. Fox, Sajia Afrin, Alex Burnstine-Townley, Lei Zhai, Woo Hyoung Lee
Summary: The study showed that embedding nanoparticles on hydrogel fibers significantly improved the electrochemical oxidation of perfluoroalkyl substances, leading to higher charge transport rates and removal efficiencies.
Article
Chemistry, Physical
Jae-Hoon Hwang, Saisaban Fahad, Hodon Ryu, Kelsey L. Rodriguez, Jorge Santo Domingo, Akihiro Kushima, Woo Hyoung Lee
Summary: In this study, a novel MoS2-NC coated cathode was developed for hydrogen production in an MEC. The electrodeposited MoS2 nanoparticles showed improved catalytic activity, resulting in hydrogen production comparable to Pt electrodes.
JOURNAL OF POWER SOURCES
(2022)
Article
Engineering, Environmental
Woo Hyoung Lee, Cheol Young Park, Daniela Diaz, Kelsey L. Rodriguez, Jongik Chung, Jared Church, Marjorie R. Willner, Jeffrey G. Lundin, Danielle M. Paynter
Summary: This study developed predictive models for bilgewater emulsion stability using image processing and machine learning, based on Navy cleaner data and previous bilgewater composition studies. The models achieved accurate predictions and provided insights for proper wastewater management and compliance with discharge regulations.
Article
Environmental Sciences
Stephanie Stoll, Jae-Hoon Hwang, David W. Fox, Keugtae Kim, Lei Zhai, Woo Hyoung Lee
Summary: In this study, a novel anti-MC-LR/MC-LR/cysteamine-coated screen-printed carbon electrode biosensor was developed for rapid detection of microcystins in water. The biosensor showed excellent performance, with a linear working range and low limit of detection. It also demonstrated minimal interference from other common microcystins and coexisting ions in water. The biosensor offers an innovative and easy-to-use solution for in situ and low-cost detection, making it essential for smart environmental management systems.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Engineering, Environmental
Samuel H. Brodfuehrer, Jacob B. Goodman, David G. Wahman, Gerald E. Speitel, Lynn E. Katz
Summary: Chloramination of bromide-containing waters results in the formation of bromine-containing haloamines, with bromamines being more reactive in oxidation and substitution reactions compared to chloramines. NHBrCl was found to be less reactive than bromamines with organic compounds, with BrCl and Br-2 identified as the true brominating agents in solutions containing NHBrCl. Further examination is needed to determine the true brominating agents in chloraminated waters containing bromide.
JOURNAL OF ENVIRONMENTAL ENGINEERING
(2022)
Article
Engineering, Environmental
Gulizhaer Abulikemu, Jatin H. Mistry, David G. Wahman, Matthew T. Alexander, Alison R. Kennicutt, Jacob D. Bollman, Jonathan G. Pressman
Summary: This study investigated the water quality and disinfectant residual stability in four chloraminated drinking water distribution systems. The results showed that the stability of disinfectant residual decreased with increasing water age, and non-disinfectant positive interference had a significant impact on total chlorine measurements when the residual concentration was low.
JOURNAL OF ENVIRONMENTAL ENGINEERING
(2023)
Article
Engineering, Environmental
Thien D. Do, Ashley D. Pifer, David G. Wahman, Rylie N. Hickman, Justin R. Chimka, Julian L. Fairey
Summary: Nitrite (NO2-) production in chloraminated drinking water distribution systems (CDWDSs) can be quantified using chemometric models (CMs) formulated using molar absorptivity (6) and/or ultraviolet absorbance (UVA) spectra. The accuracy and generalizability of these models are a concern due to variations in source water properties. This study developed a generalizable CM for NO2- quantification that mitigated the impact of source water organic matter and validated its accuracy in field tests.
Article
Engineering, Environmental
Samuel D. Hodges, David G. Wahman, Levi M. Haupert, Huong T. Pham, Margaret K. Bozarth, Michael B. Howland, Julian L. Fairey
Summary: Mass transport in diffusive gradients in thin-film passive samplers is restricted by diffusion through a gel layer. The traditional standard analysis method has a large variation in the diffusion coefficient results, while a finite difference model provides more accurate results.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Environmental Sciences
Faris M. Munshi, Jae-Hoon Hwang, Stephanie Stoll, Woo Hyoung Lee
Summary: Microalgae has a high potential for biofuel production and forward osmosis (FO) has been suggested as a promising dewatering process for separating algal biomass from water. However, the impact of reverse salt flux (RSF) on algal biomass during the FO dewatering process has not been fully investigated. This study aimed to examine the effect of different types and concentrations of salts on algal biomass characteristics during a simulated FO-driven dewatering of Chlorella vulgaris microalgae.
Article
Engineering, Environmental
Woo Hyoung Lee, David G. Wahman, Darren A. Lytle, Jonathan G. Pressman, Jongik Chung
Summary: This study conducted 32 short-term abiotic experiments to investigate the oxidant reactivity of new ductile iron and copper coupons exposed to different water qualities. The results showed that both ductile iron and copper coupons exhibited significant surface reactivity towards free chlorine and monochloramine. Additionally, pH microprofiles provided insights into the complexity near corroding metal surfaces, which is important for understanding scale formation and metal solubility.
Article
Environmental Sciences
Samantha J. Smith, David G. Wahman, Eric J. Kleiner, Gulizhaer Abulikemu, Eva K. Stebel, Brooke N. Gray, Boris Datsov, Brian C. Crone, Rose D. Taylor, Erika Womack, Cameron X. Gastaldo, George Sorial, Darren Lytle, Jonathan G. Pressman, Levi M. Haupert
Summary: When implementing anion exchange for perand polyfluoroalkyl substances treatment, temporal drinking water quality changes from concurrent inorganic anion removal can create unintended consequences. Evaluation of four drinking water-relevant inorganic anions and three strong-base anion exchange resins showed that the selectivity of anions with respect to chloride predicted competitive behavior. Column experiments validated a new ion exchange column model and demonstrated that the breakthrough of inorganic anions was minimally impacted by natural organic matter. Initial effluent water quality changes included increased chloride and decreased sulfate and bicarbonate concentrations, leading to elevated chloride-to-sulfate mass ratios and depressed pH. The ion exchange column model was further illustrated by simulating changes in source water to understand the duration of changes in inorganic anions and water quality parameters.
Article
Environmental Sciences
Alison R. Kennicutt, Paul D. Rossman, Jacob D. Bollman, Taylor Aho, Gulizhaer Abulikemu, Jonathan G. Pressman, David G. Wahman
Summary: A rational methodology was developed to proportionally scale preformed monochloramine (PM) demand in concentrated organic matter (NOM)-containing water. This methodology allows for evaluating the impact of NOM processing on PM reactivity and creating concentrated disinfection byproduct (DBP) mixtures.
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)