Article
Chemistry, Inorganic & Nuclear
Zongfei Zhang, Haoyong Yin, Heyu Zhao, Ling Wang, Jianying Gong, Qiulin Nie, Shengji Wu
Summary: Pt/NiSx/NCNTs were obtained by depositing Pt nanoparticles on vulcanized NiSx/NCNTs, resulting in highly improved catalytic activities for glucose oxidation. The Pt/NiSx/NCNTs sensors showed high sensitivity and low detection limit, making them a good candidate for glucose detection.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
Biao Zeng, Pin Zhang, Hongjian Li, Yuhui Peng, Longlong Qin, Zewen Qu, Leilei Qiu, Xiaohui Gao, Shengxiang Huang, Lianwen Deng
Summary: The magnetic nitrogen-doped carbon nanotubes (Co@NCNTs) coated with cobalt nanoparticles have strong dielectric loss, magnetic loss and electromagnetic wave absorption performance, with a minimum reflection loss value of -21.0 dB at 4.96 GHz. The thin-wall carbon nanotubes show potential as high-efficiency EMW absorbers due to their unique structure and properties.
RESULTS IN PHYSICS
(2021)
Article
Chemistry, Physical
Luis Antonio Panes-Ruiz, Leif Riemenschneider, Mohamad Moner Al Chawa, Markus Loeffler, Bernd Rellinghaus, Ronald Tetzlaff, Viktor Bezugly, Bergoi Ibarlucea, Gianaurelio Cuniberti
Summary: A 64-channel sensor array based on semiconducting single-walled carbon nanotubes demonstrates selective detection of hydrogen sulfide at breath concentration levels, with a sensitivity of 0.122%/ppb and a LOD of 3 ppb. The sensors show increased stability and higher response levels compared to some commercially available electrochemical sensors, with high selectivity to H2S. Mathematical models of sensors' electrical characteristics and sensing responses are developed to enhance the platform's differentiation capabilities in breath analysis applications.
Article
Materials Science, Multidisciplinary
Jing Tang, Sheng-Biao Zheng, Si-Xun Jiang, Jie Li, Teng Guo, Jia-Hao Guo
Summary: In this study, Co/NCNTs composites were successfully synthesized and exhibited superior electrocatalytic performance for TBHQ oxidation with high sensitivity and low detection limit. These composites not only showed high electrochemical performance under laboratory conditions, but also successfully detected TBHQ content in edible oil samples.
Article
Chemistry, Analytical
Behnaz Hatamluyi, Samira Sadeghzadeh, Reihaneh Sadeghian, Mohammad Mobin Mirimoghaddam, Mohammad Taher Boroushaki
Summary: In this study, a novel electrochemical analysis tool was developed for accurate detection of gemcitabine (GEM) by combining molecular imprinted polymer (MIP) technology and ratiometric quantification strategy. The modified electrode surface and MIP network enabled the detection of GEM in different concentration ranges.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Chemistry, Physical
Cai Qi, Shu Zu, Xukun Zhu, Tong Zhang, Longyan Li, Li Song, Yachao Jin, Mingdao Zhang
Summary: In this study, a bamboo-like nitrogen-doped carbon nanotube with low cobalt metal content was developed as a host matrix for sulfur loading and an efficient catalyst for lithium polysulfides. The resulting cathode showed high reversible capacity and cycling stability.
APPLIED SURFACE SCIENCE
(2022)
Article
Engineering, Chemical
Guangyuan Zhou, Anqi Zhao, Ping Wang, Luning Wang
Summary: In this study, a simple and scalable method for the synthesis of a single-atom cobalt catalyst on nitrogen-doped carbon nanotubes (NCNTs) was developed. The obtained catalyst exhibited excellent catalytic performance for reversible oxygen reactions. As an air electrode in zinc-air batteries, the single-atom cobalt catalyst showed superior performance compared to traditional catalysts.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Chemistry, Physical
Miaomiao Zhang, Yibo Gao, Yanpeng Mao, Yang Jin, Wenlong Wang, Jian Sun, Zhanlong Song, Jing Sun, Xiqiang Zhao
Summary: This study presents the design and synthesis of hierarchical core-shell Ni@C-NCNTs nanomaterials with N-doped defects for microwave-induced dry reforming of methane. Efficient syngas production was achieved through the microwave-induced DRM process over Ni@C-NCNTs-5 catalyst. The material's structure and composition were optimized to enhance microwave absorption and conversion capacity, catalytic performance, and surface reactivity. The MW-DRM process demonstrated significantly improved energy efficiency compared to conventional heating catalytic processes.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Analytical
Danting He, Jia Yang, Jiahui Zhang, Chengguo Hu
Summary: A simple filtration method is reported for the fabrication of salt-induced nanoporous gold electrodes (SINPGEs) from gold nanoparticles (AuNPs). This method utilizes sodium chloride (NaCl) to trigger the aggregation, sintering, and deposition of AuNPs on polyvinylidene fluoride (PVDF) membranes, resulting in the scalable fabrication of flexible SINPGEs with high conductivity, good mechanical property, large surface area, and low cost. The nanoporous structure of SINPGEs improves the electrochemical responses of various species, and the passivation effect of chloride ions on the oxidation of hydrogen peroxide can be repressed by electrochemical activation.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Electrochemistry
Khanittha Ponsanti, Nipaporn Ngernyuang, Benchamaporn Tangnorawich, Kesara Na-Bangchang, Kanyarat Boonprasert, Adis Tasanarong, Teerachat Saeheng, Akkaracha Hanwattanakul, Chiravoot Pechyen
Summary: This study presents an electrochemical sensor based on multiwalled carbon nanotubes/gold nanoparticles for detecting total hemoglobin and glycated hemoglobin in blood samples. The sensor shows a linear response and reliability, making it a promising approach for sensitive point-of-care testing of HbA1c in diabetes patients.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Rosemary Brown, Bjorn Lonn, Robin Pfeiffer, Henrik Frederiksen, Bjorn Wickman
Summary: Nanoparticle catalyst materials, particularly Pt nanoparticles, play a crucial role in sustainable development, especially in catalysis and fuel cell technologies. Temperature has an effect on the size of Pt nanoparticles, but it is not as significant as for other materials. Control over sputtering power, time, and postheat treatment can slightly influence particle size, highlighting the importance of temperature during sputtering. Increasing the temperature of the liquid substrate during sputtering can lead to a small increase in particle size, with high temperatures beneficial for achieving Pt nanoparticles larger than 2 nm.
Article
Chemistry, Analytical
Ayman Ali Saeed, Mohammed Nooredeen Abbas, Waheed Fathi El-Hawary, Yousry Moustafa Issa, Baljit Singh
Summary: A hydrogen peroxide sensor based on core-shell gold@titanium dioxide nanoparticles and multi-walled carbon nanotubes modified electrode was developed. The sensor exhibited excellent stability and sensitivity, and was successfully tested in human serum and saliva samples.
Article
Chemistry, Physical
Nataliya S. Nikolaeva, Darya D. Klyamer, Sergey M. Zharkov, Alphiya R. Tsygankova, Aleksandr S. Sukhikh, Natalya B. Morozova, Tamara Basova
Summary: This study investigated the effect of Pd, Au, and PdAu nanoparticles on the sensor response of cobalt phthalocyanine films to hydrogen. Different heterostructures were prepared and compared, with the CoPc/Pd0.8Au0.2 showing the highest response to hydrogen gas. The results suggest that mixing Pd and Au in the heterostructures enhances the sensor response.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Analytical
Ya Gao, Yu Huang, Jianmei Chen, Yuhang Liu, Yurui Xu, Xinghai Ning
Summary: The study developed a novel luminescent nanochip technology for accurate detection of sweat glucose, with dual catalytic activity for sensitive detection and monitoring of glucose levels in different biological samples.
ANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Analytical
Selene Acosta, Juan Casanova-Chafer, Eduard Llobet, Axel Hemberg, Mildred Quintana, Carla Bittencourt
Summary: The properties of carbon nanotubes can be modified by adding metal nanoparticles to their surface. This is achieved by first functionalizing the CNTs with oxygen groups using plasma, followed by decorating them with Ni-Pd bimetallic nanoparticles using plasma sputtering deposition. The oxygen groups act as nucleation sites for the growth of the bimetallic nanoparticles. The resulting Ni-Pd nanoparticle-decorated CNTs are then evaluated for their sensing capabilities in detecting toluene.
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
Shengxiang Cai, Mohammad B. Ghasemian, Md. Arifur Rahim, Mahroo Baharfar, Jiong Yang, Tang Jianbo, Kourosh Kalantar-Zadeh, Francois-Marie Allioux
Summary: In this study, a network of inorganic Ga liquid metal particles was synthesized by the spontaneous formation of Mn oxide species on their liquid metallic surfaces. The Ga particles formed by sonication were connected together by Mn oxide nanostructures formed by the reduction of a Mn salt in aqueous solution slightly above Ga's melting point. The morphology of the composites could be altered by varying the Mn salt concentration and post-treatment annealing.
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
Physics, Applied
Xingshuo Huang, Alan Salek, Andrew G. G. Tomkins, Colin M. M. MacRae, Nicholas C. C. Wilson, Dougal G. G. McCulloch, Jodie E. E. Bradby
Summary: In this study, the hardness of two different forms of lonsdaleite was measured using nanoindentation. The results indicate that the hardness of lonsdaleite is similar to that of diamond, suggesting that polycrystalline lonsdaleite is not significantly harder than similar forms of diamond.
APPLIED PHYSICS LETTERS
(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
Chemistry, Physical
Mohamed Kilani, Mostak Ahmed, Mohannad Mayyas, Yifang Wang, Kourosh Kalantar-Zadeh, Guangzhao Mao
Summary: The lack of understanding for precise synthesis and assembly of nano-entities remains a major challenge for nanofabrication. Electrocrystallization of a charge-transfer complex (CTC), tetrathiafulvalene bromide (TTF)Br, is studied on micro/nanoelectrodes for precision deposition of functional materials. This study, for the first time, establishes CTC nanoelectrochemistry as a platform technology for precise deposition of conductive crystal assemblies spanning the source and drain electrode for sensing applications.
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.
Article
Chemistry, Analytical
Luke A. Sylvander, Phuong Y. Le, Hiep N. Tran, Billy J. Murdoch, Enyi Guo, David R. Mckenzie, Dougal G. Mcculloch, Jim G. Partridge
Summary: In this study, polydimethyl glutarimide (PMGI) layers were modified to introduce free radical covalent binding sites. Horseradish peroxidase (HRP) enzyme was successfully immobilized on the treated PMGI, and the treated PMGI was incorporated as a gate dielectric layer in a three-terminal electrolyte-gated device. The presence of HRP on the plasma-modified PMGI gate dielectric layer altered the device characteristics and allowed for readout detection.
ANALYTICA CHIMICA ACTA
(2023)
Article
Chemistry, Multidisciplinary
Brenton Cook, Philipp Reineck, Thomas Shiell, Jodie Bradby, Bryan D. Esser, Joanne Etheridge, Bianca Haberl, Reinhard Boehler, David R. Mckenzie, Dougal G. McCulloch
Summary: Diamond is a crucial material for biosensors, quantum computing, and space components due to its unique properties at the nanoscale. Researchers have successfully synthesized oriented, faceted diamond particles by flash laser heating of glassy carbon, and observed their microstructure and periodicity.
Article
Engineering, Electrical & Electronic
Adam Hawke, Gianmarco Concilia, Peter Thurgood, Arman Ahnood, Sara Baratchi, Khashayar Khoshmanesh
Summary: This article describes the development and characteristics of a flow sensor for microfluidic applications. The flow sensor is compact, low-cost, and highly responsive, making it suitable for a wide range of flow rate measurements. The sensor can be easily tailored, interfaced, and operated.
SENSORS AND ACTUATORS A-PHYSICAL
(2023)
Article
Nanoscience & Nanotechnology
Ana-Mariia Pablo-Sainz-Ezquerra, Rachael Taitt, Florian Riporto, Yannick Mugnier, Pyria D. Mariathomas, Ronan Le Dantec, Mimoun Aouine, Christophe Geantet, Rajesh Ramanathan, Vipul Bansal, Yann Chevolot, Virginie Monnier
Summary: In this study, LiNbO3/Au and LiNbO3/Pt nanoparticles were synthesized by a simple and efficient method. The nanocomposites were prepared by introducing branched poly(ethyleneimine) as a linker, and the loading of metal on the surface of LiNbO3 was controlled by varying the volume of metal seeds dispersion added. The as-prepared composites showed enhanced catalytic activity compared to the separated counterparts, making them potential candidates for biomedicine applications.
ACS APPLIED NANO MATERIALS
(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
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)
