Article
Spectroscopy
Aleksandr S. Tanichev, Dmitry Petrov
Summary: This study investigates the mutual influence of CH4-N2, CH4-CO2, and CH4-C2H6 on their characteristic Raman bands. The half-width and asymmetry of the Q branches of N2, CO2, and C2H6 as a function of methane concentration were measured. Results obtained from a high-sensitivity spectrometer with a resolution of 0.5 cm^-1 based on spontaneous Raman scattering provided reliable data. An algorithm and the necessary parameters for simulating the effect of various molecular environments on the Raman bands of the main components of natural gas are presented.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Engineering, Biomedical
Kevin M. Beussman, Molly Y. Mollica, Andrea Leonarda, Jeffrey Milesc, John Hocterd, Zizhen Songe, Moritz Stollac, Sangyoon J. Hang, Ashley Emerya, Wendy E. Thomasb, Nathan J. Sniadecki
Summary: Measuring cellular traction forces is important for understanding cell behavior and function. A technique called 'black dots' was developed to measure cellular traction forces without altering cell shape or detaching the cells. By evaluating human platelets, the study found that platelets exerting more force have larger spread area, more circular shape, and more uniformly distributed F-actin filaments.
ACTA BIOMATERIALIA
(2023)
Article
Chemistry, Physical
Wenhao Li, De-Kun Ma, Xia Hu, Faliang Gou, Xiaogang Yang, Walker MacSwain, ChenZe Qi, Weiwei Zheng
Summary: Rationally designing and controlling the interactions between reaction intermediates and the surface of photocatalysts is crucial for achieving high product selectivity in photocatalysis. This study demonstrates that CH4 selectivity can be significantly enhanced by introducing La3+ ions with high oxophilicity on the surface of photocatalysts, such as CdS.
JOURNAL OF CATALYSIS
(2022)
Article
Instruments & Instrumentation
Zichen Yang, Chaoqun Ma, Jiao Gu, Yamin Wu, Chun Zhu, Lei Li, Hui Gao, Ye Zhang, Yunpeng Shang, Chengwei Wang, Guoqing Chen
Summary: The article discusses the harmful effects of tetracycline residue in milk on human health, as well as the concerns about antibiotic abuse and the measures taken by the dairy industry. The authors used the SERS method and PDMS substrate to detect tetracycline in milk quickly, improving detection sensitivity and providing a possible method for on-site detection of tetracycline.
APPLIED SPECTROSCOPY
(2021)
Article
Chemistry, Physical
Leila Vatandoust, Ali Habibi, Hamid Naghshara, Sajedeh Mohammadi Aref
Summary: In this study, nanostructured ZnO films were prepared by depositing a Zn thin film on a quartz substrate and synthesizing ZnO nanoparticles through thermal oxidation. TiO1.5/ZnO nanosensors were successfully fabricated and exhibited significantly improved sensitivity to CH4 and CO gases, as well as better response and stability compared to previous ZnO-based sensors.
SURFACES AND INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Mengyi Ge, Wenfen Zhao, Yue Han, Hongwei Gai, Chenghua Zong
Summary: This study presents a contactless and robust dielectric microspheres (DMs)-assisted surface enhanced Raman scattering (SERS) method to improve the sensitivity of SERS detection. The method utilizes DMs embedded within a polydimethylsiloxane (PDMS) film to focus and collect light, avoiding direct contact with the analytical solution and enhancing detection reliability. By integrating the DMs embedded PDMS film with microfluidic techniques, the SERS signal of a liquid substrate is enhanced, reducing reagent consumption and assay time while preventing evaporation. The method was evaluated using 4-aminothiophenol (4-ATP) as the Raman probe and showed significant signal intensification. Moreover, the DMs PDMS film can also be applied on solid substrates, as demonstrated by a proof-of-concept experiment with a 5.7-fold sensitivity improvement on an AgNPs@Si solid substrate.
FRONTIERS IN CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Ahmed Awadallah-F, Shaheen A. Al-Muhtaseb
Summary: The study investigated the effect of uniformity of carbon nanocomposites on their performance for the adsorption of CH4 and CO2 gases and predicting the separation of their mixtures. Results showed that MWCNTs have lower adsorption capacity compared to activated carbons, and the DSL model was used for predicting gas separation based on single component adsorption isotherm parameters.
APPLIED SCIENCES-BASEL
(2021)
Article
Chemistry, Multidisciplinary
Hengbo Li, Zhenyu Ji, Cheng Chen, Zhengyi Di, Yongsheng Liu, Mingyan Wu
Summary: A microporous material composed of dicopper paddlewheels and diisophthalate ligands has been successfully synthesized, showing good gas separation ability for C2H2/CO2 and C2H6/CH4 mixtures with short separation time.
CRYSTAL GROWTH & DESIGN
(2021)
Article
Chemistry, Physical
Yan Wang, Yuanyuan Cui, Xiaoning Meng, Zhanying Zhang, Jianliang Cao
Summary: In this study, Ag-modified ZnO flower-like microspheres were prepared and showed promising performance in CO and CH4 gas sensing detection, indicating broad application prospects in the future.
SURFACES AND INTERFACES
(2021)
Article
Energy & Fuels
Patrick A. Bonnaud, Fouad Oulebsir, Guillaume Galliero, Romain Vermorel
Summary: This study investigates the adsorption and diffusion of methane and carbon dioxide mixtures in mature type-2 kerogen using molecular dynamics simulations. The results show that the adsorption selectivity of CO2/CH4 decreases with temperature and a corrected Extended Langmuir (CEL) model is proposed to improve the estimations. The study also finds that the CEL model can describe the contribution of adsorption to selectivity under flow conditions.
Article
Multidisciplinary Sciences
Ningdong Feng, Huiwen Lin, Hui Song, Longxiao Yang, Daiming Tang, Feng Deng, Jinhua Ye
Summary: In this study, the photocatalytic conversion of CH4 into CH3OH on Ag-decorated facet-dominated TiO2 with high yield and selectivity is achieved, showing a key role of oxygen vacancies generation on {001} in avoiding overoxidation. The research comprehensively clarifies the underlying mechanism and presents distinct reaction pathways on {001} compared to {101} TiO2, leading to enhanced selectivity and yield.
NATURE COMMUNICATIONS
(2021)
Article
Materials Science, Multidisciplinary
Laxmi Kumari, Utkarsh Kumar, B. C. Yadav, Manisha Gupta
Summary: In this study, polyvinylpyrrolidone-coated iron oxide nanocomposite was successfully synthesized and characterized. The nanocomposite exhibited a small crystallite size and a PVP coating, with no impurities detected. A thin film of the synthesized material was prepared and used as a gas sensor, demonstrating short response and recovery times.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Biochemistry & Molecular Biology
Aleksandr S. Tanichev, Dmitry V. Petrov
Summary: Raman spectroscopy shows promise for natural gas analysis. This study measured the broadening coefficients for methane lines perturbed by propane, n-butane, and isobutane at room temperature. Neglecting the broadening effects on the methane spectrum by the pressure of C-2-C-6 alkanes leads to estimation errors in measuring the concentration of oxygen and carbon dioxide. The obtained data can improve the accuracy of natural gas analysis by Raman spectroscopy.
Article
Chemistry, Physical
Asheesh Kumar, Hari Prakash Veluswamy, Sanat Kumar, Rajnish Kumar, Praveen Linga
Summary: Clathrate hydrate-based sustainable technologies, such as solidified natural gas (SNG) technology, show great potential for storing natural gas. Experiments on mixed hydrates in a seawater environment reveal the promotional effect of seawater on hydrate formation and suggest the economic feasibility of using natural seawater to enhance SNG technology.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Chemistry, Inorganic & Nuclear
Min Chen, Zhuo-Wei Wang
Summary: The HMS-type microporous metal-organic framework shows high C-2 hydrocarbons and CO2 storage capacity, with potential for the separation of C-2 hydrocarbons and CO2 from CH4.
Article
Engineering, Environmental
Junma Tang, Priyank Kumar, Zhenbang Cao, Jialuo Han, Torben Daeneke, Dorna Esrafilzadeh, Anthony P. O'Mullane, Jianbo Tang, Arifur Rahim, Kourosh Kalantar-Zadeh
Summary: By using mechanical energy as the stimulus and liquid metal gallium (Ga) together with nickel (Ni) particles as co-catalysts, renewable biofuels can be converted into mainly H-2 and C2H4 at near room temperature. This approach offers an alternative for H-2 and C2H4 production without high reaction temperatures and fossil fuel hydrocarbons.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Electrical & Electronic
David A. A. Katzmarek, Yang Yang, Mohammad B. B. Ghasemian, Kourosh Kalantar-Zadeh, Richard W. W. Ziolkowski, Francesca Iacopi
Summary: The properties of epitaxial graphene for radio frequency (RF) applications are investigated. Metal coplanar waveguides (CPWs) are fabricated to evaluate the frequency-dependent behavior of the graphene's sheet resistance. The quality of the metal contact with graphene and the influence of small-scale discontinuities are important factors in the RF spectrum.
IEEE ELECTRON DEVICE LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Ruohan Yu, Jialuo Han, Yuan Chi, Jiewei Zheng, Richard Fuchs, Mohammad B. Ghasemian, Md. Arifur Rahim, Shi-Yang Tang, Guangzhao Mao, Kourosh Kalantar-Zadeh, Jianbo Tang
Summary: Exploring the influence of minor constituents on liquid alloys, this study shows that the presence of solute metals in liquid gallium can significantly affect their electrocapillarity and electrochemistry. The formation of different fractal modes in liquid alloy droplets under controlled voltage and alkaline solution conditions is investigated, with distinct non-branched droplets, unstable fractals, and stable fractals observed. Surface tension measurements, cycle voltammetry, and surface compositional characterizations provide evidence that minor alloy components drastically alter the surface tension, electrochemical oxidation, and oxide dissolution processes. These findings offer promising opportunities for harnessing the tunability and functionality of liquid metals.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Jiewei Zheng, Astha Sharma, Tushar Kumeria, Yuan Chi, Mohammad B. B. Ghasemian, Guangzhao Mao, Jianbo Tang, Priyank Kumar, Md. Arifur Rahim, Kourosh Kalantar-Zadeh
Summary: Liquid metals provide new dimensions for controlling and governing reactions. Solutes in liquid metals can be used to enhance and tune interfacial reactions. In this study, zinc (Zn) is shown to enrich the interfacial area for the synthesis of highly crystalline and porous ZIF-8. The highest reaction rate and best quality ZIF-8 are achieved when a eutectic liquid metal system of Zn with gallium (Ga) is implemented.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Engineering, Environmental
Zhenbang Cao, Yuan Chi, Junma Tang, Dorna Esrafilzadeh, Jianbo Tang, Md. Arifur Rahim, Donald S. Thomas, Mohammad Tajik, William A. Donald, Kourosh Kalantar-Zadeh
Summary: In this study, a gallium-ethylene glycol system was used to break down organic bonds and produce hydrogen gas. By applying mechanical agitation, an in-situ monitoring approach was established to analyze the gaseous products and the post-reaction mixture. The results showed that gallium could continuously and selectively produce hydrogen gas and also generate alkanes and alkenes. This study provides a platform to explore alternative strategies for hydrogen production and organic transformation using liquid metals.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Damon M. de Clercq, Jiong Yang, Muhammad Hanif, Jessica Alves, Jiale Feng, Michael P. Nielsen, Kourosh Kalantar-Zadeh, Timothy W. Schmidt
Summary: Hybrid inorganic-organic semiconducting devices based on monolayer transition metal dichalcogenides (TMDs) have high radiative efficiencies and can form flexible P-N junctions, but the understanding of excitons and charges at the interface between TMDs and organic systems is still limited.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Medicine, General & Internal
Majid Nour, Kemal Polat, Umit Senturk, Murat Arican
Summary: This paper investigates new methods for predicting cuffless blood pressure using PPG signals. The new feature extraction method involves extracting meaningful features from the PPG signals to predict systolic and diastolic blood pressure values. Regression models were used to predict cuffless blood pressure and their performances were evaluated using different metrics. The results show that the proposed feature extraction and regression models can predict cuffless blood pressure with reasonable accuracy and provide a novel approach for future development.
Article
Nanoscience & Nanotechnology
Maedehsadat Mousavi, Mohammad B. Ghasemian, Mahroo Baharfar, Mohammad Tajik, Yuan Chi, Guangzhao Mao, Kourosh Kalantar-Zadeh, Jianbo Tang
Summary: Liquid metal-electrolyte can be used for self-deposition of low-dimensional nanomaterials. The liquid metal-driven interfacial growth of metal tellurides was explored using eutectic gallium-indium (EGaIn) as the liquid metal and specific cation pairs as precursors. The deposited materials consisted of metal telluride and tellurium, and their properties depended on the metal ion type and the metal-to-tellurium ion ratios. The synthesized materials showed promising potential as electrode modifiers, increasing the electroactive surface area of unmodified electrodes and demonstrating remarkable activity for electrochemical reactions.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Review
Chemistry, Multidisciplinary
Vi Khanh Truong, Andrew Hayles, Richard Bright, Trong Quan Luu, Michael D. Dickey, Kourosh Kalantar-Zadeh, Krasimir Vasilev
Summary: The proliferation of drug resistance in microbial pathogens poses a significant threat to human health. Liquid metal nanoparticles, particularly gallium-based ones, show promise in combating this problem due to their distinctive properties, high antimicrobial efficacy, and low toxicity. The unique bactericidal mechanism of gallium liquid metal can bypass emerging drug resistance mechanisms, making it a valuable strategic pathway in the battle against antimicrobial resistance.
Review
Physics, Applied
Dashen Dong, Shanmuga Sundar Dhanabalan, Peter Francis Mathew Elango, Mingjie Yang, Sumeet Walia, Sharath Sriram, Madhu Bhaskaran
Summary: This review provides an overview of the design principles, fabrication techniques, and various multifunctional and emerging applications of metal-oxide thin films in flexible and stretchable devices. The current challenges and future outlook are also discussed.
APPLIED PHYSICS REVIEWS
(2023)
Article
Materials Science, Multidisciplinary
Md Saiful Islam, Aditi Upadhyay, Rajour Tanyi Ako, Nicholas P. Lawrence, Jakeya Sultana, Abhishek Ranjan, Brian Wai-Him Ng, Nelson Tansu, Madhu Bhaskaran, Sharath Sriram, Derek Abbott
Summary: The study focuses on the optical resonators which are important for confining light in optical devices. However, the limited light confinement capacity leads to light emission which is a major drawback of these resonators. Researchers investigate the use of bound states in the continuum to reduce light scattering and improve optical performance. They design a metasurface with two elliptical silicon resonators to achieve high-Q factor at terahertz frequencies. The experimental results show that the metasurface is sensitive to the external environment and can be used for terahertz sensing applications.
ADVANCED PHOTONICS RESEARCH
(2023)
Article
Materials Science, Multidisciplinary
Moonika Sari Widjajana, Shih-Hao Chiu, Yuan Chi, Mahroo Baharfar, Jiewei Zheng, Mohammad B. Ghasemian, Saroj Kumar Bhattacharyya, Jianbo Tang, Md. Arifur Rahim, Kourosh Kalantar-Zadeh
Summary: To optimize the performance of thermoelectric materials, liquid metal-based processes are used to engineer their characteristics. In this study, indium (In) was introduced into bismuth (Bi) using a liquid metal-based process to investigate the thermoelectric properties. The sample with 2% indium concentration showed the highest Seebeck coefficient and electrical resistivity. The thermal conductivity decreased with increasing indium concentration up to 5%, and then showed a reverse trend. With a 5% indium concentration, the Bi-In system exhibited the highest figure of merit (zT) value, nearly twice that of pristine bismuth, due to the crystal modalities and diffraction peaks formed in the pool of bismuth. This study demonstrates a feasible and cost-effective approach for designing thermoelectric materials through liquid metal-enabled processes.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Computer Science, Information Systems
Ahmed Lasheen, Hatem F. Sindi, Majid Nour, Mostafa F. Shaaban, Ahmed Osman, Hatem H. Zeineldin
Summary: This paper presents a comprehensive model to assess the combined impact of primary and secondary control on microgrid stability and determine the stable operating range. Simulation results demonstrate that secondary control has a significant influence on microgrid stability, highlighting the importance of considering the design of secondary control.
Article
Chemistry, Multidisciplinary
Mohammad B. Ghasemian, Yifang Wang, Francois-Marie Allioux, Ali Zavabeti, Kourosh Kalantar-Zadeh
Summary: Liquid metal (LM) droplets are being used in various applications such as catalysis, sensing, and flexible electronics. To modulate the electronic properties of LM, a method for on-demand alternating electronic properties is necessary. In this study, n-type MoOx and MoOxSy semiconductors were deposited on the surface of EGaIn LM droplets under mechanical agitation, resulting in the formation of oxide and oxysulfide layers. The comprehensive study of electronic and optical properties revealed a decrease in band gap, leading to deeper n-type doping of the materials.
Article
Automation & Control Systems
Shih-Hao Chiu, Mahroo Baharfar, Yuan Chi, Moonika Sari Widjajana, Zhenbang Cao, Francois-Marie Allioux, Jianbo Tang, Md. Arifur Rahim, Kourosh Kalantar-Zadeh
Summary: Thiol molecules are used to functionalize the surface of gallium particles, reducing oxidation and providing electrical conductivity. These modified particles are then used to develop soft devices for gas, exhalation, and flex sensing. This study explores the possibility of creating conductive mixes using organic molecules and liquid metal-based nano-/microparticles, and the potential for fabricating multifunctional sensors.
ADVANCED INTELLIGENT SYSTEMS
(2023)
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)
