Article
Engineering, Electrical & Electronic
Saoirse Dervin, Priyanka Ganguly, Ravinder Dahiya
Summary: A flexible and disposable electrochemical sensor using graphene oxide - chitosan modified carbon-based electrodes has been developed for the detection of tyrosine. The sensor demonstrates a linear proportional response and excellent sensitivity, making it suitable for early diagnosis and monitoring of metabolic or neurodegenerative diseases or nutritional management. The affordable and easy-to-fabricate sensor shows promising potential as a platform for single-use, disposable, and wearable point of care testing devices.
IEEE SENSORS JOURNAL
(2021)
Article
Chemistry, Analytical
Lei Fan, Yuying Xin, Yingming Xu, Xianfa Zhang, Xiaoli Cheng, Lihong Liu, Haiyan Song, Shan Gao, Lihua Huo
Summary: The WO2-NaxWO3 nanoparticles modified carbon spheres composite was synthesized and used for highly selective detection of dopamine. The material showed high sensitivity and stability, making it a promising candidate for practical applications.
MICROCHEMICAL JOURNAL
(2021)
Article
Chemistry, Analytical
Edson R. Santana, Eduardo C. Martins, Almir Spinelli
Summary: A sensitive electroanalytical tool was developed for the detection of triclocarban by modifying a glassy carbon substrate with nitrogen-doped graphene quantum dots immobilized in chitosan, showing excellent oxidation current responses. The calibration plot for triclocarban in phosphate buffer solution ranged from 0.05 to 8.0 mu mol L-1, with detection and quantification limits of 17.0 and 57.0 nmol L-1, respectively. The modified electrode achieved accurate quantification of triclocarban in personal care products with recovery data ranging from 90 to 109%.
MICROCHEMICAL JOURNAL
(2021)
Article
Chemistry, Analytical
Radhiahtul Raehan Mustafa, Rashidah Sukor, Shimaa Eissa, Ainaa Najihah Shahrom, Nazamid Saari, Siti Mariam Mohd Nor
Summary: An electrochemical immunosensor was developed for sensitive and rapid detection of mitragynine, utilizing MWCNTs/CS nanocomposite as modifier. The sensor showed higher sensitivity (10-fold) than conventional ELISA, with a limit of detection of 0.018 μg/mL and a limit of quantification of 0.06 μg/mL. Detection in spiked urine samples resulted in good recoveries between 70-110%.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Electrochemistry
Henry Setiyanto, Atik Dwi Oktaviani, Robeth Viktoria Manurung, Brian Yuliarto, Ajeng Nega Reni Damayanti, Evyka Setya Aji, Vienna Saraswaty
Summary: A novel electrochemical sensor based on chitosan molecularly imprinted polymer was developed for selective detection of methyl paraben in cosmetic products. The sensor exhibited satisfactory linearity and detection limit, and showed similar performance to UV-visible spectrophotometry analysis.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Abdelaziz Elgamouz, Abdel-Nasser Kawde, Ihsan A. Shehadi, Sareh Sayari, Sarah Ali Abdullah Mohammed, Aya Abdelrazeq, Chahlaa Naser Nassab, Ayman A. AbdelHamid, Kamrul Hasan
Summary: This study successfully synthesized graphene oxide-modified magnetite nanoparticles and used it as an electrochemical sensor for the quantitative detection of hemoglobin. The modified electrode showed a higher electrochemical surface area and was able to detect hemoglobin in human urine. Therefore, the GPE/rGO/Fe3O4 electrode has the potential to be a competitive sensor for trace amounts of hemoglobin in physiological media.
Article
Biochemistry & Molecular Biology
Liang Yan, Chaoyan Zhang, Fengna Xi
Summary: In this work, a portable and highly sensitive disposable electrochemical immunosensing platform was developed for the detection of prostate-specific antigen (PSA). The platform was based on a chitosan-graphene-modified indium tin oxide (ITO) electrode and showed high selectivity, reproducibility, and good storage stability.
Article
Chemistry, Multidisciplinary
Rongrong Liu, Xin Gao, Yanqiu Xie, Qinhan Liu, Kai Zhang, Yijia Sun, He Bai, Fei Yao, Hongyan Yue
Summary: This study successfully prepared flower-like NiCoZn-carbonate hydroxide hollow nanospheres, which were used as positive electrode materials in supercapacitors with excellent cycling stability.
Article
Chemistry, Multidisciplinary
Rongrong Liu, Xin Gao, Yanqiu Xie, Qinhan Liu, Kai Zhang, Yijia Sun, He Bai, Fei Yao, Hongyan Yue
Summary: In this study, flower-like NiCoZn-carbonate hydroxide hollow nanospheres were prepared as electrode materials, showing improved specific capacitance and cycling stability due to their unique structure and morphology.
Article
Chemistry, Multidisciplinary
Maciej Suchecki, Sylwia Klejna, Waldemar Bednarski, Marianna Marciszko-Wiackowska, Natalia Rosiaki, Kornelia Lewandowska, Konrad Szacilowski
Summary: The increasing usage of mobile technology globally has led to a demand for better energy storage systems. This study demonstrates a cost-effective method for building high-performance supercapacitors using graphene oxide functionalized with tetrapyrrole derivatives. The experiments and calculations reveal correlations between the structural, magnetic, electronic, and thermodynamic properties of the materials and their performance as supercapacitors. The findings provide insight into the multifarious origins of supercapacitance and offer a viable strategy for manufacturing high-performance supercapacitive materials.
Article
Chemistry, Analytical
Budi Riza Putra, Ulfiatun Nisa, Rudi Heryanto, Munawar Khalil, Fitri Khoerunnisa, Aga Ridhova, Yudi Nugraha Thaha, Frank Marken, Wulan Tri Wahyuni
Summary: A highly selective electrochemical sensor based on a molecularly imprinted polymer (MIP) was developed for uric acid detection in the presence of dopamine as an interference molecule. This sensor showed excellent analytical performance, good reproducibility, and stability, demonstrating highly selective detection of uric acid in the presence of interfering species. The sensor is expected to be used in early-stage disease diagnosis.
Article
Chemistry, Analytical
Nur Farahin Suhaimi, Siti Nor Atika Baharin, Nurul Ain Jamion, Zainiharyati Mohd Zain, Kavirajaa Pandian Sambasevam
Summary: This study developed a polyaniline-chitosan (PANI-CHT) composite using chitosan extracted from crab shells and modified with Screen-Printed Carbon Electrode (SPCE) for the fabrication of an electrochemical sensor to detect perfluorooctanoic acid (PFOA). The composite showed excellent sensitivity, reproducibility, and stability for PFOA detection.
MICROCHEMICAL JOURNAL
(2023)
Article
Chemistry, Analytical
Edgar Nagles, Monica Bello, John J. Hurtado
Summary: This report presents a new application of the chitosan-graphene glassy carbon electrode (Ch-G/GCE) system for the determination of hydroxyflavonoid morin (MR). The system utilizes square-wave voltammetry (SWV) to measure MR, and exhibits a significant increase in anodic peak current compared to the unmodified glassy carbon electrode.
Article
Chemistry, Applied
Sherin Rison, Agnus T. Mathew, Louis George, T. Maiyalagan, Gurumurthy Hegde, Anitha Varghese
Summary: An electrochemical sensor for the determination of Vitamin B6 was prepared by depositing Pt nanospheres on graphene-beta-CD coated Pencil Graphite Electrode (PGE). The sensor demonstrated high sensitivity and accuracy in detecting Vitamin B6 in juice samples, making it a promising tool for analytical purposes.
TOPICS IN CATALYSIS
(2022)
Article
Chemistry, Physical
Hang Wang, Fuquan Xiong, Feng Guo, Yongyu Han, Feng Chen, Bole Ma, Jiamei Yang, Mingshan Wen, Yan Qing, Fuxiang Chu, Yiqiang Wu
Summary: This study successfully constructed monodisperse blueberry-like lignin-based porous carbon nanospheres (ACS) with adjustable specific surface area and surface oxygen content, and demonstrated their excellent electrochemical performance and long cycle stability in energy storage. Compared with all-lignin based carbon nanospheres without activation, the capacitance and energy density of ACS improved by approximately 1 time, and exhibited different performance in different electrolytes.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Review
Chemistry, Analytical
Masoumeh Ghalkhani, Sariye Irem Kaya, Nurgul K. Bakirhan, Yalcin Ozkan, Sibel A. Ozkan
Summary: The worldwide occurrence of cancer has led to a global effort in developing and producing anticancer drugs. However, these drugs often come with high toxicity and side effects. Electrochemical methods have gained attention for their sensitivity, selectivity, and affordability in developing (bio)sensors for monitoring anticancer drugs and cancer biomarkers. This review focuses on the development of modified electrodes using nanomaterials for sensing anticancer drugs and cancer biomarkers, highlighting their analytical performance and properties. Nanomaterials offer excellent features for anticancer drug delivery systems and can enhance drug resistance, site-specificity, and efficient delivery.
CRITICAL REVIEWS IN ANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Applied
Elnaz Marzi Khosrowshahi, Masoumeh Ghalkhani, Mohammad Reza Afshar Mogaddam, Mir Ali Farajzadeh, Esmail Sohouli, Mahboob Nemati
Summary: This study presents a new dispersive solid phase extraction method using MXene nanoparticles for the simultaneous extraction and determination of twelve pesticides from fresh fruit juices. The method employs high performance liquid chromatography-tandem mass spectrometry for analysis and can help monitor pesticide levels in juice samples, improving our understanding of food safety.
Article
Chemistry, Physical
Masoumeh Ghalkhani, Rasol Abdullah Mirzaie, Afrooz Banimostafa, Esmail Sohouli, Elaheh Hashemi
Summary: This study aims to enhance the efficiency of ethanol electrooxidation reaction (EOR) and overcome electrode fouling by electrodepositing ternary nanocomposites of copper, nickel, and iron oxides on the glassy carbon electrode (GCE) surface. The GCEs were modified using three different procedures and activated by CV cycling in an alkaline solution. The best electro-catalytic efficiency was achieved by simultaneously electrodepositing nano Cu, Ni, and Fe2O3 on the GCE surface.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Multidisciplinary
Maryam Akbari, Maryam Saleh Mohammadnia, Masoumeh Ghalkhani, Mohammad Aghaei, Esmail Sohouli, Mehdi Rahimi-Nasrabadi, Mohsen Arbabi, Hamid Reza Banafshe, Ali Sobhani-Nasab
Summary: A new electrochemical sensor has been developed to accurately measure fentanyl by measuring its oxidation current in aqueous solutions. The study demonstrates that a glassy carbon electrode modified with a nanocomposite of multi-walled carbon nanotube, hydroxyapatite, and copper-based metal-organic framework (MWCNT-HA/Cu-H3BTC) (GCE/MWCNT-HA/Cu-H3BTC) can achieve sensitive detection of fentanyl, with excellent reproducibility and stability.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2022)
Article
Chemistry, Analytical
Elnaz Marzi Khosrowshahi, Mohammad Reza Afshar Mogaddam, Yousef Javadzadeh, Nail Altunay, Mustafa Tuzen, Savas Kaya, Masoumeh Ghalkhani, Mir Ali Farajzadeh, Mahboob Nemati
Summary: In this research, a convenient, fast, and green dispersive solid phase extraction method based on Ti2C nanosheets was developed for effective enrichment of triazole pesticides. The method exhibited a wide working range, low detection limits, and acceptable extraction recoveries, and was successfully applied to the extraction and determination of the pesticides from fruit juice samples.
MICROCHEMICAL JOURNAL
(2022)
Article
Environmental Sciences
Jamil A. Buledi, Amber R. Solangi, Ali Hyder, Madeeha Batool, Nasrullah Mahar, Arfana Mallah, Hassan Karimi-Maleh, Onur Karaman, Ceren Karaman, Masoumeh Ghalkhani
Summary: This research successfully developed a new chemically modified sensor based on PVA/WO3/rGO nanocomposite for efficient detection of 4-AP pollutant. The fabricated sensor demonstrated excellent stability and sensitivity, outperforming the reported sensors, and could be applied in real water and pharmaceutical samples.
ENVIRONMENTAL RESEARCH
(2022)
Article
Environmental Sciences
Abbas Akbarzadeh, Yeganeh Khazani, Shokooh Sadat Khaloo, Masoumeh Ghalkhani
Summary: A new nanocomposite material was synthesized, which exhibited excellent photocatalytic degradation ability for dye compounds under visible light irradiation. The experiment results showed that this nanocomposite had a faster degradation rate constant compared to pure components and composite materials. Furthermore, it demonstrated stability and reusability, making it suitable for environmental remediation.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Energy & Fuels
Yingji Wu, Masoumeh Ghalkhani, Elham Ashrafzadeh Afshar, Fatemeh Karimi, Changlei Xia, Quyet Van Le, Yasser Vasseghian
Summary: The changing global approach for protecting the planet and turning to a low-carbon economy has increased the demand for biomasses. Biomass is a renewable carbon-neutral compound that can be used for electricity generation and heating. Developing practical techniques for sustainable energy production is a novel strategy to address air pollution and promote a sustainable bioeconomy.
Article
Engineering, Electrical & Electronic
Masoumeh Ghalkhani, Marzieh Nadafan, Yeganeh Khazani
Summary: Cu-, Zn-, and Cr-based layered double hydroxides (Zn-Cu-Cr-LDH) were synthesized via co-precipitation. Pure C3N5 was prepared using melamine as the starting material. A nanocomposite of Zn-Cu-Cr-LDH@g-C3N5 was then prepared through solvothermal method, followed by the synthesis of Zn-Cu-Cr-LDH@g-C3N5/Ag NPs composite. The materials were characterized and their nonlinear optical responses were studied, showing improved responses with Ag NPs doping. This research contributes to the understanding and design of high nonlinear optical materials.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Electrochemistry
Farzaneh Rasi, Susan Sadeghi, Masoumeh Ghalkhani
Summary: A new nanocomposite was synthesized and used to modify the surface of a glassy carbon electrode without a binder for the detection of Ponceau 4 R food colorant. The modified electrode exhibited good selectivity, stability, and reproducibility, and successfully analyzed Ponceau 4 R in complex matrices.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Sahar Maghsoudi, Rasol Abdullah Mirzaie, Masoumeh Ghalkhani, Azam Anaraki Firooz
Summary: Ag and Mn/ZnO were synthesized via low-temperature hydrothermal process and used as catalysts for glucose oxidation reaction (GOR). Characterization by SEM and EDX revealed homogeneous clustered nanoparticles for the synthesized materials. The electrocatalytic effect of Ag/ZnO and Mn/ZnO with different loading amounts on GOR was investigated, and Ag/ZnO-50 and Mn/ZnO-60 were identified as the best electrocatalysts due to their larger effective surface area and faster glucose diffusion coefficient.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2023)
Article
Chemistry, Analytical
Maryam Saleh Mohammadnia, Hossein Roghani-Mamaqani, Masoumeh Ghalkhani, Salar Hemmati
Summary: A hybrid nanocomposite of N,S-doped carbon dots/carbon nanotube-poly(amidoamine) dendrimer was synthesized and used as a highly selective electrochemical sensor for the determination of imatinib mesylate. The nanocomposite showed excellent electrocatalytic properties, generating a higher oxidation peak current for imatinib mesylate compared to other electrodes. The N,S-CDs/CNTD/GCE exhibited a linear relationship between concentration and oxidation peak current of imatinib mesylate, with a detection limit of 3 nM. The reproducibility and stability of the sensor were also excellent when quantifying imatinib mesylate in blood-serum samples.
Article
Environmental Sciences
Zhouxiang Zhang, Hassan Karimi-Maleh, Yangpin Wen, Rozhin Darabi, Tao Wu, Pardis Alostani, Masoumeh Ghalkhani
Summary: In this study, an electrochemical aptamer sensor based on an antimonene@Ti3C2Tx nanohybrid was proposed for the sensitive determination of Pb2+. The nanohybrid, synthesized by ultrasonication, combined the advantages of both antimonene and Ti3C2Tx, leading to an enhanced sensing signal and simplified manufacturing flow. The surface morphology and microarchitecture of the nanohybrid were characterized using various techniques. The aptasensor exhibited a wide linear correlation with Log CPb2+ and a trace detection limit of 3.3 x 10-13 M. Additionally, the aptasensor showed excellent repeatability, consistency, selectivity, and reproducibility, suggesting its potential application in water quality control and environmental monitoring of Pb2+.
ENVIRONMENTAL RESEARCH
(2023)
Article
Chemistry, Analytical
Masoumeh Ghalkhani, Shokooh Sadat Khaloo, Esmail Sohouli
Summary: In this study, a modified carbon electrode was used to detect medetomidine, and satisfactory results were obtained. The composite material used was able to enhance the electrode's response to medetomidine. The method showed high sensitivity and accuracy, and demonstrated good recovery rates in the concentration detection of medetomidine in mouse blood samples.
MICROCHEMICAL JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Masoumeh Ghalkhani, Rasol Abdullah Mirzaie, Fatemeh Shahmoradi, Azam Anaraki Firooz
Summary: In this research, a nanocatalyst based on manganese and cobalt oxides was developed to create an efficient cathode electrode for fuel cells. The nano MnOx/MnCo2O4 was synthesized through a hydrothermal procedure followed by sintering. Various characterization techniques were used to analyze the synthesized nanocatalyst. The synthesized nanocatalyst was loaded onto carbon paste in different weight ratios, and the best performance was achieved with 50 W% MnOx/MnCo2O loaded carbon paste, showing twice the active surface area compared to bare carbon paste. The nanocatalyst demonstrated low cost, good catalytic efficiency, and cyclic stability, making it a potential alternative to platinum-based catalysts for fuel cell electrodes.
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)
