Article
Chemistry, Physical
Mehdi Khosravi, Hadi Feizi, Behzad Haghighi, Suleyman Allakhverdiev, Mohammad Mahdi Najafpour
Summary: Photocatalysts are important for green fuel production. The study compared the photo-electrochemical performance and behavior of mixed-phase titanium oxide and iron oxide heterojunction with titanium oxide nanotubes and iron oxide heterojunction. Results showed that factors such as stabilization potential and dissolved oxygen did not significantly affect the photo-electrochemical properties of the electrodes.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Multidisciplinary
Serena De Santis, Giovanni Sotgiu, Francesco Porcelli, Martina Marsotto, Giovanna Iucci, Monica Orsini
Summary: The study combined the antioxidant and anti-inflammatory properties of ceria with the advantageous features of titanium nanotubes to build active surfaces with enhanced bioactivity, offering a potential solution to the problems faced by titanium-based materials in orthopedic and dental applications.
Article
Chemistry, Physical
Karan Gulati, Mateusz Czerwinski, Marta Michalska-Domanska, Ruben Del Olmo Martinez
Summary: This review discusses and details the influence of electrolyte aging in Ti anodization on the fabrication of controlled nanostructures, as well as its impact on the morphology, chemistry, stability, and application-specific performance of nanostructures.
ADVANCES IN COLLOID AND INTERFACE SCIENCE
(2022)
Article
Electrochemistry
Marzieh Alizadeh, Pedram Nasehi, Mojtaba Saei Moghaddam, Shilpi Agarwal, Vinod K. Gupta
Summary: Phenol and its derivatives are significant water pollutants, and a sensitive electrochemical sensor utilizing a TiO2/NT/SWCNTs/IL/CPE nanocomposite was successfully fabricated for their determination. Optimal conditions were achieved through mediator ratio and solution pH optimization, resulting in enhanced phenol detection capabilities and high selectivity. The sensor showed wide linear dynamic ranges and a good limit of detection for phenol sensing, with acceptable recovery data in different water samples.
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2021)
Article
Chemistry, Analytical
Jiangman Tian, Zhaode Mu, Jie Wang, Jing Zhou, Yonghua Yuan, Lijuan Bai
Summary: A novel signal-off electrochemical aptasensor was developed for highly sensitive detection of LPS by combining AgNPs-decorated TNT with PDDA-functionalized rGO. The nanohybrid exhibited excellent electrochemical activity, serving as both the sensing platform for LBA immobilization and the redox probe for signal monitoring. The aptasensor showed good stability, reproducibility, specificity, wide linear range, low detection limit, and acceptable recovery rates for real sample analysis.
Article
Instruments & Instrumentation
Hadeel Alhazimeh, Mohamed Ghazi Al-Fandi, Lina M. K. Al-Ebbini
Summary: The paper presents the development of an electrochemical nanosensor for the detection of ascorbic acid (AA). The nanosensor was fabricated by printing carbon and silver nanoparticles ink on a PDMS substrate, and it demonstrated high sensitivity and a wide detection range. The results show that the nanosensor has a low detection limit and good linear working range.
Review
Chemistry, Analytical
Sayo O. Fakayode, Charuksha Walgama, Vivian E. Fernand Narcisse, Cidya Grant
Summary: Human exposure to heavy metal ions is linked to various health issues, and developing low-cost detection methods is a global priority.
Article
Materials Science, Coatings & Films
Anna Majchrowicz, Agata Roguska, Kamil Majchrowicz, Marcin Pisarek, Marcin Holdynski, Piotr Bazarnik, Malgorzata Lewandowska
Summary: Anodic oxidation of titanium alloys can produce nanotube oxide structures, with changes at the microstructural level influencing the homogeneity of nanotube layers and the height of nanotubes correlating with the beta phase content. Crystal nanotubes can be fabricated on annealed Ti-13Nb-13Zr substrates immediately after anodization due to the presence of a crystalline transition layer and internal stresses in the two-phase microstructure.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Materials Science, Coatings & Films
Ika Maria Ulfah, Diah Ayu Fitriani, Siti Amalina Azahra, Aghni Ulma Saudi, Muhammad Kozin, Razie Hanafi, Prabowo Puranto, Bambang Sugeng, Yudi Nugraha Thaha, Aga Ridhova, Muhammad Prisla Kamil
Summary: Titanium dioxide nanotubes (TNTs) grown on the surface of titanium implants play a significant role in preventing tissue infection and implant failure. This study investigates the role of different counter electrodes in the formation of TNTs with varying shapes and surface properties. The use of platinum and graphite cathodes results in circular TNTs, while stainless steel cathode leads to hexagonal-shaped tubes with particle debris on the surface. The surface microstructure of TNTs affects their roughness, hydrophilicity, and ability to facilitate the growth of bone-forming apatite during osseointegration.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Materials Science, Ceramics
Alberto Z. Fatichi, Mariana G. de Mello, Karina D. Pereira, Luisa G. M. Antonio, Augusto D. Luchessi, Rubens Caram, Alessandra Cremasco
Summary: The electrochemical, structural, and biological properties of self-organized amorphous and anatase/rutile titanium dioxide (TiO2) nanotubes deposited on Ti-35Nb-4Zr alloy through anodization-induced surface modification were investigated. The study found that anatase TiO2 exhibited higher surface corrosion resistance and cell viability compared to amorphous TiO2, indicating the importance of TiO2 nanotube crystallization in the material's electrochemical behavior and biocompatibility.
CERAMICS INTERNATIONAL
(2022)
Article
Crystallography
Itzel Pamela Torres-Avila, Roberto M. Souza, Alexis Chino-Ulloa, Pablo Alfredo Ruiz-Trabolsi, Raul Tadeo-Rosas, Rafael Carrera-Espinoza, Enrique Hernandez-Sanchez
Summary: In this study, titanium oxide nanotubes (TNTs) were formed on the surface of a Ti-6Al-4V alloy through anodic oxidation. An electrolyte based on ethylene glycol (EG) and ammonium fluoride (NH4F) was used. The morphology of the TNT array was observed using scanning electron microscopy (SEM). The adhesion strength of the TNTs to the Ti-6Al-4V surface was evaluated through nanoscratch tests, and the critical load of the different TNT layers was determined.
Article
Engineering, Electrical & Electronic
Nur Ezyanie Safie, Mohd Asyadi Azam, Chun Khean Chiew, Mohd Fareezuan Abdul Aziz, Mohamad Nazmi Faiz Md Sairi, Akito Takasaki
Summary: This study focuses on utilizing reduced graphene oxide (rGO) as an active material for the anode of lithium-ion batteries (LIBs). Through electrochemical performance analysis, it is found that commercial rGO shows better performance and cyclic stability, demonstrating potential for producing high energy density batteries.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Chemistry, Physical
Jenelle Fortunato, Yun Kyung Shin, Michael A. A. Spencer, Adri C. T. van Duin, Veronica Augustyn
Summary: This study investigates the proton-coupled electron transfer mechanisms in transition metal oxides in aqueous acidic electrolytes. The competition for protons and electrons among different processes is found to significantly influence electrochemical properties. The use of an acidic buffered electrolyte (H3PO4) increases the Coulombic efficiency and specific capacity, improving the electrode performance.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Electrochemistry
Bolu Sun, Chengyang Gao, Lin Yang, Hongxia Shi, Lei Kan, Quhuan Ma, Xiaofeng Shi
Summary: In this study, a novel molecularly imprinted electrochemical sensor was developed for the detection of epigoitrin (EP) in herbs and traditional Chinese medicine (TCM). The sensor exhibited a wide linear range, low limit of detection, and good stability, making it suitable for accurate analysis of EP content in TCM.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Nanoscience & Nanotechnology
Anna Paulla Simon, Andressa Rodrigues, Janaina Soares Santos, Francisco Trivinho-Strixino, Bruno Leandro Pereira, Carlos Mauricio Lepienski, Henrique Emilio Zorel Junior, Mariana de Souza Sikora
Summary: By altering synthesis variables, the morphology and structural properties of TiO2 nanotube arrays can be tailored for specific applications. This study investigated the effects of electrolyte-containing ions and annealing temperature on the structural, morphological, and mechanical parameters of TiO2 films for potential biomedical applications. The results showed that different synthesis conditions led to variations in the morphology and structure of TiO2 nanotube arrays. Annealing temperature affected the stability of nanostructures, but had limited effects on hardness and Young's modulus. The ability to tailor specific properties through synthesis conditions could enable personalized treatments and improved in vivo performance.
Article
Chemistry, Multidisciplinary
Hamza El Marouazi, Pablo Jimenez-Calvo, Edouard Breniaux, Christophe Colbeau-Justin, Izabela Janowska, Valerie Keller
Summary: The study investigated the characteristics of few layer graphene/TiO2 photocatalytic composites with loadings ranging from 0.5 to 11 wt % and their impact on hydrogen production from methanol. It was found that the composites with 0.5 and 1.0 wt % FLG/TiO2 exhibited the best activity.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Electrochemistry
Houda Boudjehem, Hayet Moumeni, Abderrafik Nemamcha, Sergey Pronkin, Jean Luc Rehspringer
Summary: Ni-Mo-W electrocatalysts were prepared by electrodeposition under various conditions and their activity for hydrogen evolution reaction in alkaline medium was studied using electrochemical analyses. The results showed that the Ni-Mo-W electrocatalyst developed at pH 7.5 and [WO42-] = 0.01 M exhibited the best performance with low overpotential and charge-transfer resistance.
JOURNAL OF APPLIED ELECTROCHEMISTRY
(2022)
Article
Chemistry, Physical
Xiong Zhang, Lai Truong-Phuoc, Xuemei Liao, Giulia Tuci, Emiliano Fonda, Vasiliki Papaefthymiou, Spyridon Zafeiratos, Giuliano Giambastiani, Sergey Pronkin, Cuong Pham-Huu
Summary: Non-noble metal catalysts, specifically Fe-N-C single-atom catalysts, have shown superior performance in the oxygen reduction reaction (ORR) compared to benchmark Pt/C. By combining citrate ions and thiocyanate ligands, a high-density and discrete Fe-N-C-based catalyst was successfully prepared, showcasing excellent electrocatalytic performance in alkaline environments.
Article
Green & Sustainable Science & Technology
Pablo Jimenez-Calvo, Valerie Caps, Valerie Keller
Summary: Solar energy and photocatalysis are key players in the energy transition, with hydrogen emerging as an ideal solar fuel due to its simplicity in the water-splitting reaction. However, the challenge lies in finding a single catalyst with sufficient conversion efficiency. The development of multi-phase composites, plasmonic Schottky junctions, and Z-scheme heterojunctions are promising approaches to enhancing hydrogen production.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Article
Chemistry, Physical
Xiong Zhang, Lai Truong-Phuoc, Xuemei Liao, Vasiliki Papaefthimiou, Matteo Pugliesi, Giulia Tuci, Giuliano Giambastiani, Sergey Pronkin, Cuong Pham-Huu
Summary: This study introduces a novel N-enriched C-network with Cl-FeN4 sites as a low-cost catalytic material, outperforming traditional Pt/C catalysts in ORR performance. By simplifying the chemical synthesis methods, highly reproducible synthetic paths were achieved, avoiding complex thermo-chemical treatments.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Chemistry, Physical
Daniel Glass, Raul Quesada-Cabrera, Steven Bardey, Premrudee Promdet, Riccardo Sapienza, Valerie Keller, Stefan A. Maier, Valerie Caps, Ivan P. Parkin, Emiliano Cortes
Summary: Research shows that in photocatalytic processes, the lifetime of in situ generated oxygen vacancies (VO) plays a more important role in catalysis than concentration, with longer-lived VO significantly enhancing photocatalytic activity. Enhanced photocatalytic efficiency is associated with optimal VO concentrations that encourage carrier transport while avoiding charge carrier trapping.
ACS ENERGY LETTERS
(2021)
Review
Chemistry, Physical
Xiong Zhang, Lai Truong-Phuoc, Tristan Asset, Sergey Pronkin, Cuong Pham-Huu
Summary: This review summarizes the notable progress in the development of low Pt-based and Fe-N-C electrocatalysts for proton exchange membrane fuel cell (PEMFC) applications. The research focuses on the design and optimization of Fe-N-C's as a cost-effective alternative to platinum-based catalysts. By comparing the performance of Fe-N-C's with that of commercial Pt/C catalysts, it is suggested that Fe-N-C's have the potential to be alternative candidates in PEMFCs. The review discusses various aspects including the mechanism, active sites, catalyst layer design, performance, and durability of Fe-N-C's in PEMFCs, aiming to provide insights into their potential as replacements for Pt-based catalysts and pointing out future research directions.
Article
Nanoscience & Nanotechnology
Maria Anagnostopoulou, Areti Zindrou, Thomas Cottineau, Andreas Kafizas, Clement Marchal, Yiannis Deligiannakis, Valerie Keller, Konstantinos C. Christoforidis
Summary: This work reports the development of tunable organic/inorganic heterojunctions comprised of cobalt oxides (Co3O4) and modified carbon nitride (CN), targeting on optimizing their response under UV-visible irradiation. The study highlights the importance of MOF structures used as precursors in forming advanced materials and the stepwise functionalization of the individual parts in nanocomposites for the development of materials with superior activity.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Clement Marchal, Caroline Mary, Leila Hammoud, Qingyang Xi, Joumana Toufaily, Tayssir Hamieh, Luka Suhadolnik, Paolo Fornasiero, Christophe Colbeau-Justin, Valerie Caps, Thomas Cottineau, Valerie Keller
Summary: Au/TiO2 photocatalysts were studied and compared for gas phase reduction of CO2. The nature of the TiO2 support was found to significantly affect the performance of the catalyst. Among the studied catalysts, the 0.84 wt.% Au/TiO2 SG (Sol Gel) calcined at 400 degrees C exhibited the best performance, which could be attributed to its large surface area, high density of exposed (101) anatase TiO2 facets, and oxygen vacancies acting as reactive defects sites.
Article
Electrochemistry
Taylan Karakoc, Housseinou Ba, Lai Truong Phuoc, Dominique Begin, Cuong Pham-Huu, Sergey N. Pronkin
Summary: Porous carbon electrode materials can be further enhanced in supercapacitors by doping them with heteroatoms. This study successfully synthesized microporous N-doped activated carbons and adjusted their structure and composition by tuning the synthesis conditions and choice of precursor molecules. The optimized N-doped activated carbon demonstrated outstanding electrochemical performance.
Article
Materials Science, Multidisciplinary
Urelle Biapo, Valerie Keller, Philippe Bazin, Thomas Cottineau
Summary: The development of a gas-phase detector for organophosphorus molecules was achieved through the chemical modification of resonant microcantilever surfaces with TiO2 nanorods using a solvothermal synthesis method. Functionalizing the TiO2 sensor with amine terminated molecules resulted in a significantly higher sensing response. In situ IR analysis revealed varying strengths of hydrogen bonding between DMMP and the TiO2 surface at room temperature.
MATERIALS ADVANCES
(2022)
Article
Materials Science, Multidisciplinary
Remy Savin, Nour-Ouda Benzaamia, Christian Njel, Sergey Pronkin, Christian Blanck, Marc Schmutz, Fouzia Boulmedais
Summary: In this study, a high sensitivity nanohybrid enzymatic biosensor was developed using a mussel-inspired method with a cheap natural molecule and gold salt. The method allows for specific functionalization of a single electrode in a microelectrode array.
MATERIALS ADVANCES
(2022)
Article
Energy & Fuels
Thomas Favet, Thomas Cottineau, Valerie Keller, My Ali El Khakani
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2020)
Article
Chemistry, Multidisciplinary
Guillaume Thomas, Geoffrey Gerer, Laurent Schlur, Fabien Schnell, Thomas Cottineau, Valerie Keller, Denis Spitzer
Article
Chemistry, Physical
Florian Gelb, Yu-Chien Chueh, Neso Sojic, Valerie Keller, Dodzi Zigah, Thomas Cottineau
SUSTAINABLE ENERGY & FUELS
(2020)
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)