Article
Geosciences, Multidisciplinary
JoffreyDumont Le Brazidec, Marc Bocquet, Olivier Saunier, Yelva Roustan
Summary: The accident at the Fukushima Daiichi NPP resulted in significant and rapidly changing releases of atmospheric radionuclides. Inverse modelling methods, particularly Bayesian inversion, can effectively assess these releases and their uncertainties by combining an atmospheric transport model with a range of observations. This study developed Bayesian algorithms to estimate the magnitude and temporal evolution of the Fukushima Daiichi NPP's cesium 137 (137Cs) release, taking into account the spatio-temporal information and uncertainties associated with observations, models, and source estimates.
GEOSCIENTIFIC MODEL DEVELOPMENT
(2023)
Article
Multidisciplinary Sciences
Yukihisa Sanada, Yoshimi Urabe, Toshiharu Misonou, Takehiko Shiribiki, Takahiro Nakanishi, Yusuke Watanabe, Tadahiko Tsuruta
Summary: This study visualized the distribution of radiocesium in sediment around the Fukushima Daiichi Nuclear Power Plant using data from a towed gamma-ray detection system, with the uncertainty of the map evaluated through comparison with sediment core sample data. The characteristics of radiocesium distribution were analyzed considering seafloor topography and geological maps, while the formation of Cs-137 anomaly at estuaries was studied using contour maps. Validation of the map showed good agreement with actual sediment core samples, with the Cs-137 concentration decreasing over time due to uncertainties.
SCIENTIFIC REPORTS
(2021)
Article
Chemistry, Analytical
Nathaniel D. Fletcher, Benjamin T. Manard, Debra A. Bostick, William D. Bostick, Shalina C. Metzger, Brian W. Ticknor, Kayron T. Rogers, Cole R. Hexel
Summary: The analysis of impurities in a uranium ore concentrate (UOC) provides valuable information on the source, production history, and potential intended use. Concentrations of phosphorus and sulfur were determined by mass spectrometry and compared to results from a pyrohydrolysis method. The method allows for the removal of interferences in the analysis of species in UOC materials.
Article
Environmental Sciences
Shin-ichi Hayama, Aki Tanaka, Setsuko Nakanishi, Fumiharu Konno, Yoshi Kawamoto, Kazuhiko Ochiai, Toshinori Omi
Summary: Over the 10 years following the Fukushima nuclear accident, changes in the muscle Cs-137 concentration of wild Japanese monkeys were measured. The concentration decreased over time, but no significant difference was found between 2017 and 2020, suggesting a continued accumulation of Cs-137 in muscle.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
R. Murugan, N. Kavasi, S. K. Sahoo, Y. Omori, A. Sorimachi, H. Takahashi, T. Aono
Summary: The study revealed elevated Cs-137 activity concentrations and lower U-238 activity concentrations in Fukushima-contaminated soil. The activity ratios of U-234/U-238 and U-235/U-238 were found to be similar to natural terrestrial ratios, confirming their natural origin. The U-235/Cs-137 activity ratio was estimated using isotope dilution technique for highly Cs-137 contaminated soil samples from the Fukushima exclusion zone.
JOURNAL OF ENVIRONMENTAL RADIOACTIVITY
(2021)
Article
Chemistry, Analytical
Xiaotong Ding, Wenting Bu, Youyi Ni, Xuepeng Shao, Ke Xiong, Chuting Yang, Sheng Hu
Summary: A method was developed for precise measurement of REEs in uranium ore samples, showing consistent results within the same type of ore samples and significant variations among different types. The distribution patterns of REEs in uranium ore samples could potentially serve as unique fingerprints for source identification of related nuclear materials.
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2021)
Article
Chemistry, Inorganic & Nuclear
Alya A. Badawi, Ayah E. Elshahat, Rowayda Fayez M. Abou Alo, Mohamed K. Shaat
Summary: This paper investigates the composition and radioactivity of the corium resulting from the Fukushima Daiichi Unitl Nuclear Power Plant accident. The thermal performance of the reactor core is also analyzed. The results show good agreement with predictions from other models, and the radionuclide composition of the corium is important for decommissioning plans.
APPLIED RADIATION AND ISOTOPES
(2022)
Article
Engineering, Mechanical
N. Fujisawa, S. Liu, T. Yamagata
Summary: The study on the hydrogen explosion accident at Fukushima Daiichi Nuclear Power Plant Unit 1 revealed that the high-temperature hydrogen gas emitted from the reactor vessel head flange spread uniformly in the container building, reaching an ignition level on the 4th floor. This could have been ignited by a tank heater on the 4th floor, leading to fast deflagration and detonation on the 5th floor due to the high concentration of hydrogen gas.
ENGINEERING FAILURE ANALYSIS
(2021)
Article
Environmental Sciences
Kazuyuki Sakuma, Susumu Yamada, Masahiko Machida, Hiroshi Kurikami, Toshiharu Misonou, Takahiro Nakanishi, Kazuki Iijima
Summary: The planned release of tritium (3H) into the ocean in the Fukushima coastal region is expected to take place in Spring or Summer of 2023. Prior to the release, the impact of 3H discharges from both the port of Fukushima Daiichi and rivers in the region was evaluated using a three-dimensional hydrodynamic model (3D-Sea-SPEC). The simulation results showed that the discharges from the port of Fukushima Daiichi had the dominant effect on 3H concentrations within a range of approximately 1 km. Additionally, under storm flow conditions, the riverine 3H discharge was found to have an impact on the Fukushima coastal regions, resulting in an average seawater 3H concentration of approximately 0.1 Bq/L near the shore.
MARINE POLLUTION BULLETIN
(2023)
Article
Environmental Sciences
Magnus Ulimoen, Erik Berge, Heiko Klein, Brit Salbu, Ole Christian Lind
Summary: Atmospheric dispersion models are crucial for nuclear risk assessment and emergency response, but uncertainties are mainly attributed to meteorology, source terms, and model parameters. Ensemble predictions, including both meteorological and source term ensembles, show higher prediction skill compared to individual runs and improve decision-making in the early phase after a nuclear accident.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Nuclear Science & Technology
Yoshiaki Oka
Summary: One month after the TEPCO accident, the number of disaster-related deaths in Fukushima Prefecture exceeded that in Miyagi and Iwate, due to the increase in disuse syndrome during prolonged evacuation. The study analyzed the risk and benefit of the evacuation and suggested improvements for future emergency guidelines and risk communication. The lessons learned are important for countries with aging nuclear power plants in agricultural areas.
PROGRESS IN NUCLEAR ENERGY
(2022)
Article
Chemistry, Analytical
Wenting Bu, Mei Gu, Xiaotong Ding, Youyi Ni, Xuepeng Shao, Xuemei Liu, Chuting Yang, Sheng Hu
Summary: Monitoring Pu isotopes in environmental samples is crucial for radioactive assessment and tracing geochemical processes. This study demonstrated the enhanced sensitivity and interference removal capabilities of ICP-MS/MS for ultra-trace determination of Pu isotopes, with the establishment of a simple chromatographic separation method. The method was validated through analysis of reference materials, confirming its suitability for environmental Pu isotope determination.
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2021)
Article
Nuclear Science & Technology
Xin Li, Ikken Sato, Akifumi Yamaji, Mariko Regalado, Jun Wang
Summary: The study focuses on a detailed analysis of the RPV pressure peak event that occurred in Unit-3 at Fukushima Daiichi Nuclear Power Plant, suggesting possible scenarios for SRVs opening during pressurization and depressurization phases, and indicating that the particulate debris diameter is not a sensitive parameter in the current modeling. The study also estimates that around 70-110 GJ of energy can be removed by coolant during the debris quenching period with 30 tons of water reduction from the lower plenum.
ANNALS OF NUCLEAR ENERGY
(2021)
Article
Environmental Sciences
Masakazu Ota, Jun Koarashi
Summary: Cs-137 contamination in forests affected by the Fukushima Daiichi Nuclear Power Plant accident is primarily determined by surface uptake through needles and bark, with root uptake playing a negligible role. The internal contamination of trees occurs through an enduring recycling of Cs-137 absorbed on the tree surface. The activity concentration of Cs-137 in stem wood of the trees is decreasing by approximately 3% per year, mainly due to radioactive decay and partly due to dilution effect from tree growth. These findings provide crucial information for forestry reactivation in Fukushima.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Economics
Matthew Neidell, Shinsuke Uchida, Marcella Veronesi
Summary: After the Fukushima Daiichi nuclear accident, the halt in nuclear power production led to an increase in electricity prices, decrease in energy consumption, and an increase in mortality during very cold temperatures. The study reveals a previously unexplored health benefit of using nuclear power, adding to the debate on its role as a source of energy.
JOURNAL OF HEALTH ECONOMICS
(2021)
Article
Environmental Sciences
Yang Shao, Guosheng Yang, Min Luo, Diandou Xu, Hirofumi Tazoe, Masatoshi Yamada, Lingling Ma
Summary: The study focused on the measurement of U-236 and Cs-137 in soil and road dust samples from Beijing and Zhangjiakou in China, demonstrating varying concentration characteristics and migration behaviors of U-236 and Cs-137 in different samples. A pattern of increasing U-236 concentrations with decreasing particle size was observed in some samples, while others exhibited irregular characteristics.
Article
Biology
Yohei Fujishima, Akifumi Nakata, Risa Ujiie, Kosuke Kasai, Kentaro Ariyoshi, Valerie Swee Ting Goh, Kojun Suzuki, Hirofumi Tazoe, Masatoshi Yamada, Mitsuaki A. Yoshida, Tomisato Miura
Summary: This study evaluated the radiation effects on large Japanese field mice in contaminated areas of Fukushima through chromosome aberration analysis. The results showed that there were no radiation-specific chromosome aberrations observed in the mice, indicating that chronic low dose-rate radiation did not cause significant genetic damage in the studied population.
INTERNATIONAL JOURNAL OF RADIATION BIOLOGY
(2022)
Article
Chemistry, Analytical
Shuai Zhang, Guosheng Yang, Jian Zheng, Tatsuo Aono, Shaoming Pan
Summary: A rapid method for analyzing Np-237 and Pu isotopes in steel and concrete samples was developed using HCl-HNO3-NH4HF2 digestion, CaF2/LaF3 co-precipitation, AG MP-1 M resin column separation, and SF-ICP-MS measurement. The method offers lower detection limits and avoids the use of toxic HF, making it suitable for detecting low level Pu and Np in samples.
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
(2021)
Article
Chemistry, Analytical
Md. Ferdous Alam, Jun Hu, Guosheng Yang, A. K. M. Atique Ullah, M. Ibrahim Khalil, A. K. M. Fazle Kibria, Ismail M. M. Rahman, Kenji Nanba, Masatoshi Yamada
Summary: The study found that in the coastal region of Bangladesh, U-236 is mainly influenced by global fallout, while in the hilly area, U-236 primarily comes from natural nuclear reactions.
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
(2021)
Article
Environmental Sciences
Jun Hu, Yunyun Wu, Miki Arian Saputra, Yanchao Song, Guosheng Yang, Shinji Tokonami
Summary: This study investigates the relationship between outdoor PM2.5 concentrations and indoor radon inhalation exposure by measuring radon and its progeny concentrations. The results show that indoor radon concentrations and inhalation exposure are correlated with the air quality levels of the cities.
JOURNAL OF ENVIRONMENTAL RADIOACTIVITY
(2022)
Article
Chemistry, Analytical
Masatoshi Yamada, Shinji Oikawa
Summary: This study investigated the vertical distribution, behavior, and sources of radionuclides in seafloor sediments in the western North Pacific Ocean and the Sea of Japan. The results showed that a significant amount of anthropogenic radionuclides, such as Pu and Am, has been transported by ocean currents and accumulated in the seafloor sediments.
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
(2022)
Article
Marine & Freshwater Biology
Masatoshi Yamada, Shinji Oikawa
Summary: The concentrations of Pu239+240 and the Pu-240Pu/239 atom ratio were analyzed in liver samples of the North Pacific giant octopus collected near the Rokkasho Nuclear Fuel Reprocessing Plant. The results showed that the Pu concentrations were similar to those reported in other marine organisms, while the Pu-240Pu/239 atom ratio was higher than the global fallout ratio, indicating the presence of Pu from atmospheric nuclear weapons testing and the Pacific Proving Grounds. The liver of the North Pacific giant octopus is a valuable bioindicator for monitoring Pu pollution.
JOURNAL OF SEA RESEARCH
(2022)
Article
Environmental Sciences
Yusuke Uchiyama, Natsuki Tokunaga, Kohei Aduma, Yuki Kamidaira, Daisuke Tsumune, Toshiki Iwasaki, Masatoshi Yamada, Yutaka Tadeda, Takashi Ishimaru, Yukari Ito, Yutaka W. Watanabe, Ken Ikehara, Miho Fukuda, Yuichi Onda
Summary: Significant release of radionuclides from the Fukushima Nuclear Power Plant resulted in their deposition on land and subsequent transport to the coastal areas, leading to long-term impacts on the marine environment.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Yang Shao, Guosheng Yang, Min Luo, Diandou Xu, Hirofumi Tazoe, Masatoshi Yamada, Lingling Ma
Summary: Soil and road dust are significant sources of heavy metal pollution in the environment and can lead to heavy metal transfer to the atmosphere through resuspension. Evaluating the pollution levels, particle size distribution, and sources of heavy metals is important, especially in the heavily-polluted Jing-Jin-Ji area.
BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
(2022)
Article
Environmental Sciences
Takahito Ikenoue, Masatoshi Yamada, Nobuyoshi Ishii, Natsumi Kudo, Yuhei Shirotani, Yasuo Ishida, Masashi Kusakabe
Summary: This study measured the concentrations of cesium isotopes in zooplankton samples collected off the east coast of Japan from 2012 to 2020 to evaluate the long-term effects of the Fukushima nuclear accident. The results showed that high concentrations of Cs-137 were sporadically observed in zooplankton until 2016, but decreased significantly after 2017. The elevated Cs-137/Cs-133 ratios in zooplankton relative to seawater can be attributed to the incorporation of highly radioactive particles and microplastics. The persistence of these elevated ratios highlights the ongoing impact of the nuclear accident on marine zooplankton.
ENVIRONMENTAL POLLUTION
(2022)
Article
Environmental Sciences
Masatoshi Yamada, Jian Zheng
Summary: The behavior of 241Am in the studied area of the East China Sea was investigated by analyzing settling particles and surface sediments. The results showed that 241Am concentrations increased with depth in settling particles, and the increase was attributed to a more rapid scavenging rate. The concentrations of 241Am in surface sediments also increased with depth, indicating enhanced boundary scavenging.
JOURNAL OF ENVIRONMENTAL RADIOACTIVITY
(2022)
Article
Chemistry, Analytical
Shuai Zhang, Zhiyong Liu, Guosheng Yang, Jian Zheng, Shaoming Pan, Tatsuo Aono, Aya Sakaguchi
Summary: A new method has been developed to solve the difficulties in analyzing Np-237 in seawater, and accurate measurements have been obtained. This method has low method detection limits and high sample throughput, which is of great significance for evaluating the impact of radioactive wastewater discharge on the marine ecological system.
ANALYTICAL CHEMISTRY
(2023)
Article
Environmental Sciences
Yuki Tamakuma, Masayuki Naito, Guosheng Yang, Kotaro Tani, Kazuaki Yajima, Eunjoo Kim, Munehiko Kowatari, Osamu Kurihara
Summary: This paper presents a new in-vivo counting system developed by QST, which serves as both a whole-body counter and a lung counter. The system has been tested and calibrated using various phantoms, and its performance shows high sensitivity and accuracy. It is now ready for use.
RADIATION PROTECTION DOSIMETRY
(2023)
Article
Environmental Sciences
Guosheng Yang, Eunjoo Kim, Jian Zheng, Munehiko Kowatari, Osamu Kurihara
Summary: In order to provide timely information for decision-making in emergency radiation therapy, we have developed mass and alpha spectrometric methods to determine ultra-trace actinide isotopes.
RADIATION PROTECTION DOSIMETRY
(2023)
Article
Environmental Sciences
Guosheng Yang, Yuki Tamakuma, Masayuki Naito, Kotaro Tani, Eunjoo Kim, Munehiko Kowatari, Osamu Kurihara
Summary: Japan's National Institutes for Quantum Science and Technology (QST) has been designated as the core radiation emergency medical support center and has constructed a new building for dose assessment at its Chiba base. The new facility includes an integrated bioassay laboratory and a new integrated in vivo counter. The laboratory is expected to have the capability to screen 5-10 individuals simultaneously for internal contamination with actinides.
RADIATION PROTECTION DOSIMETRY
(2023)
Article
Chemistry, Analytical
Yujia Ying, Huilin Li
Summary: Enzymes play a crucial role as biological catalysts in accelerating biochemical reactions in living organisms. This study proposes a convenient method for monitoring enzymatic catalytic processes using native top-down mass spectrometry. By exploring the heterogeneity of the chymotrypsin sample and using tandem mass spectrometry, the researchers were able to monitor covalent and noncovalent enzymatic complexes, substrates, and products during catalysis. The results demonstrate that this method has the potential to be a promising tool for characterizing biocatalysts.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Kang Yang, Shuaibo Shi, Jinyu Wu, Shaolong Han, Shengdi Tai, Shishen Zhang, Kun Zhang
Summary: H2O and D2O are important analogues closely related to various industries and monitoring fields. This study successfully distinguishes and detects H2O and D2O by designing a novel eu(III)-macrocycle with dual emitters, Eu-2a, and conducting fluorescence titration experiments.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Julia Kuligowski, Alvaro Perez-Rubio, Marta Moreno-Torres, Polina Soluyanova, Judith Perez-Rojas, Ivan Rienda, David Perez-Guaita, Eugenia Pareja, Ramon Trullenque-Juan, Jose Castell, Marcha Verheijen, Florian Caiment, Ramiro Jover, Guillermo Quintas
Summary: This study introduces a novel variable selection approach called cluster PLS (c-PLS) to assess the joint impact of variable groups selected based on biological characteristics on the predictive performance of a multivariate model. The usefulness of c-PLS is shown using miRNomic and metabolomic datasets obtained from the analysis of liver tissue biopsies.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Meixue Lai, Lijie Zhong, Siyi Liu, Yitian Tang, Tingting Han, Huali Deng, Yu Bao, Yingming Ma, Wei Wang, Li Niu, Shiyu Gan
Summary: This study presents a method for constructing wearable sweat electrolyte sensors using carbon fiber-based solid-contact ion-selective electrodes (SC-ISEs). By using carbon fibers extracted from commercial cloth as electrode material, the cost and reproducibility issues of flexible SC-ISEs were addressed. The results showed that the carbon fiber-based SC-ISEs exhibited reversible voltammetric and stable impedance performances, and had high reproducibility of standard potentials between normal and bending states.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Ke Yang, Ying Liu, Min Deng, Peipei Wang, Dan Cheng, Songjiao Li, Longwei He
Summary: A near-infrared fluorescent probe has been developed to accurately measure the levels of peroxynitrite (ONOO-) in the endoplasmic reticulum (ER) in acute lung injury (ALI). The probe demonstrated rapid response, high selectivity, good sensitivity, and enhanced fluorescence intensity in response to ONOO-. It was successfully used to detect changes in ONOO- levels and showed significant increases in an ALI cell model and an ALI mouse model.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Yanping Wang, Yuemei Chen, Kejun Li, Jinrong Zhou, Xin Yuan, Mei Zhang, Ke Huang
Summary: In this work, a portable analytical system based on point discharge chemical vapor generation atomic emission spectrometry (PD-CVG-AES) coupling with gold filament enrichment was designed. The highly sensitive analysis of Hg2+ indirectly realized the detection of ascorbic acid (AA). The measurement is based on the fact that Ag+ can decrease the concentration of Hg2+ by forming Ag-Hg amalgam in the presence of the reductant SnCl2, while AA can pre-reduce Ag+ to Ag0, leading to the generation of silver nanoparticles (Ag NPs). The developed novel analytical strategy broadens the application of microplasma-based AES and offers a higher level of sensitivity compared to current AA detection techniques.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Yundi Huang, Bo Song, Kaiwen Chen, Deshu Kong, Jingli Yuan
Summary: This study developed two lysosome-targetable background-free TGL probes for efficient and accurate detection of 1O2, which can be used for monitoring endogenous 1O2 concentrations in lysosomes and discriminating variability induced by different photosensitizers. Furthermore, a smart luminescent sensor film was successfully prepared for on-site 1O2 production detection during PDT processes, offering a promising clinical monitoring tool for skin diseases.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Wei Lang, Jia-Mei Qin, Qian-Yong Cao
Summary: A novel polymer-based probe P1 was successfully synthesized for fluorescently ratiometric sensing of H2S with high selectivity and sensitivity. A smartphone sensing platform was constructed to conduct visual quantitative detection of H2S. P1 can be employed in evaluating the level fluctuations of H2S in living cells, testing water samples/wine samples, and monitoring food freshness.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Yuanyuan Qin, Shuda Liu, Shuyun Meng, Dong Liu, Tianyan You
Summary: The study developed a split aptamer-based sandwich-type ratiometric biosensor for the detection of 17 beta-estradiol (E2) using photoelectrochemical and electrochemical assays. The biosensor utilized split aptamer fragments to recognize E2 and trigger a hybridization chain reaction, resulting in the production of double-stranded DNA labeled with CdTe quantum dots. This DNA complex was able to sensitize CdTe quantum dots and generate response signals for E2 detection. The developed biosensor demonstrated high sensitivity and accuracy with two linear ranges and low detection limits.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Siriwan Teepoo, Jongjit Jantra, Khaunnapa Panapong, David Taiwo Ajayi
Summary: A novel immunochromatographic assay based on hyperbranched Au plasmonic blackbodies with a smartphone readout was developed for rapid and sensitive detection of leucomalachite green residues in fish and shrimp products.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Andrea L. Larraga-Urdaz, Borja Moreira-Alvarez, Jorge Ruiz Encinar, Jose M. Costa-Fernandez, Maria Luisa Fernandez-Sanchez
Summary: A major challenge in the 21st century is the development of point-of-care diagnostic tools. In this study, a highly sensitive and simple bioassay using AuNPs and MNAzymes was developed for rapid detection and quantification of miRNA-4739. The proposed strategy shows potential for breast cancer diagnosis.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Xiaohan Zhao, Anyu Wang, Lingzi Zhai, Jiuhe Gao, Sizhe Lyu, Yingshan Jiang, Tian Zhong, Ying Xiao, Xi Yu
Summary: A novel method using polystyrene-coated magnetic nanoparticles for extracting monohydroxy polycyclic aromatic hydrocarbons from urine samples was investigated. The proposed method is simple, sensitive, and efficient, with desirable sensitivity for analyzing low-abundance metabolites in large volumes of complex urine samples.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Ke Quan, Yuqing Zeng, Wenke Zhang, Fengfeng Li, Mengjiao Li, Zhihe Qing, Linlin Wu
Summary: In this study, a visual and reusable biosensor was developed for detecting substrates that are closely associated with human physiological health. The immobilized oxidase showed higher stability and sensitivity under harsh conditions, enabling reliable detection of substrates in complex fluids.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Dongjuan Wang, Xiuqian Ding, Jinling Xie, Juan Wang, Guanhao Li, Xin Zhou
Summary: In this study, a three-in-one sensor was developed for real-time detection of biogenic amines (BAs) with high sensitivity and selectivity. The sensor showed multimodal responses and could be used to fabricate portable devices for on-site non-destructive assessment of food spoilage indicators.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Jinting Meng, Zihao Xu, Shasha Zheng, Hongqun Yang, Tianfu Wang, Hong Wang, Yingwei Zhang
Summary: This study demonstrates the development of a cascade signal amplification system using a multi-pedal DNA walker and strand displacement reactions for the electrochemical detection of miRNA-155. The biosensor exhibited high sensitivity, selectivity, and the potential for clinical applications.
ANALYTICA CHIMICA ACTA
(2024)