Article
Chemistry, Multidisciplinary
Victor V. Petrov, Irina O. Ignatieva, Maria G. Volkova, Irina A. Gulyaeva, Ilya V. Pankov, Ekaterina M. Bayan
Summary: Transparent Al-doped ZnO films were synthesized by solid-phase pyrolysis and characterized by XRD, SEM, and TEM. The films exhibit wurtzite structure and have a uniform distribution of nanoparticles. The introduction of 1% Al results in a narrowed band gap and improved response time to radiation.
Article
Engineering, Electrical & Electronic
Wei Liu, Fan Zhang, Xin Yan, Fang Wang, Xuenan Zhang, Takenobu Suzuki, Yasutake Ohishi, Tonglei Cheng
Summary: This study proposes a humidity sensor based on a CMC/GO composite film, applied to TCMZI using an optical deposition method. The experimental results show that this sensor has good repeatability and stability in humidity measurement, with high sensitivity.
IEEE SENSORS JOURNAL
(2021)
Article
Materials Science, Multidisciplinary
Lin-Bao Luo, Ting Fang, Chao Xie, Li Wang, Di Wu, Feng-Xia Liang
Summary: A wavelength sensor capable of distinguishing illumination with wavelengths ranging from ultraviolet to near infrared has been developed. The sensor is composed of two parallelly stacking graphene/thin Si/graphene heterojunction devices, displaying different optical properties under various light illuminations according to theoretical simulation. The numerical equation can accurately determine the wavelength in the range from 265 to 1050 nm with a low error rate, suggesting potential application for future optoelectronic systems.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
Article
Physics, Multidisciplinary
Nikita V. Tepliakov, Johannes Lischner, Efthimios Kaxiras, Arash A. Mostofi, Michele Pizzochero
Summary: In this study, a new perspective on the electronic structure of armchair graphene nanoribbons is presented using simple model Hamiltonians and ab initio calculations. The research demonstrates that the energy-gap opening in these nanoribbons is caused by the breaking of a hidden symmetry through long-ranged hopping of pi electrons and structural distortions at the edges. This hidden symmetry can be restored or manipulated through in-plane lattice strain, enabling continuous energy-gap tuning, the emergence of Dirac points at the Fermi level, and topological quantum phase transitions. This work establishes an original interpretation of the semiconducting properties of armchair graphene nanoribbons and provides guidelines for their rational electronic structure design.
PHYSICAL REVIEW LETTERS
(2023)
Article
Chemistry, Inorganic & Nuclear
Xinyi Du, Junchao Liu, Zhitong Han, Jiansheng Chen, Lina Wang, Xinyi Zhang, Yue Guo, Xuran Liu, Jinming Zhou, Pan Jia
Summary: This study demonstrates efficient photo-driven ion transport in slightly reduced vertical graphene oxide membranes (GOMs) by utilizing short channel lengths and efficient light absorption. The mechanism involves separating photoexcited charge carriers between sp2 and sp3 carbon clusters, which enhances the electric potential of ion channels on GOMs and establishes an electric potential difference across effective ion channels composed of sp3 carbon clusters. This facilitates the directional transport of cations from the illuminated side to the non-illuminated side. The promising results suggest new possibilities for the application of vertical 2D nanofluidic membranes in areas such as artificial photosynthesis, light harvesting, and water treatment.
DALTON TRANSACTIONS
(2023)
Article
Materials Science, Multidisciplinary
Xi Wu, Fawei Zheng, Feiyu Kang, Jia Li
Summary: By using density functional theory calculations, we have identified the stable intercalated structure and the evolution of band structures in the intercalation process of Li into bilayer graphene. Our work shows that the Dirac cone of bilayer graphene can be modulated by using the generalized N/ N/ Kekule order, which opens a gap or splits the electron and hole pocket, contributed by the Kekule-O and Kekule-Y distortion respectively. This study provides valuable insights for the investigation of Li-intercalated bilayer graphene in experiments.
Article
Chemistry, Physical
Michele Pizzochero, Efthimios Kaxiras
Summary: This study investigates armchair graphene nanoribbons with asymmetric edge extensions consisting of laterally fused naphtho groups, showing tunability of pi-magnetism induced by naphtho groups. These structures exhibit full spin-polarization at band extrema and the ferromagnetic ground state can be manipulated into nonmagnetic or antiferromagnetic phases through external stimuli. This work establishes these one-dimensional architectures as suitable platforms for logic spintronics.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Article
Materials Science, Multidisciplinary
Fereshte Ildarabadi, Rouhollah Farghadan
Summary: Researchers found that applying nonuniform strain in zigzag graphene nanoribbons can generate spin-thermoelectric effects, leading to a tunable spin-dependent band gap, pure spin current, and a giant spin Seebeck coefficient. This provides a practical pathway for improved design in spin-thermoelectric applications through strain engineering.
Article
Multidisciplinary Sciences
Aparna Singh, Pukhrambam Dipak, Asif Iqbal, Anuradha Samadhiya, Shailendra Kumar Dwivedi, Dinesh Chandra Tiwari, Rajendra Kumar Tiwari, Kailash Nath Pandey
Summary: In this study, a polymer-based gas sensor was developed using chemically synthesized polymer nanocomposites. The sensor showed a sensing response of 4.56% for PANI/MMT-rGO at 2 ppm of hydrogen cyanide (HCN) gas. The sensitivity of the sensors PANI/MMT and PANI/MMT-rGO were 0.89 ppm(-1) and 1.1174 ppm(-1) respectively. The increased sensitivity may be attributed to the larger surface area provided by MMT and rGO, allowing for more binding sites for the HCN gas. The sensor response increased with increasing gas concentration but saturated after 10 ppm. The sensor exhibited automatic recovery and was stable for 8 months.
SCIENTIFIC REPORTS
(2023)
Article
Materials Science, Multidisciplinary
Songwei Zeng, Qiubo Pan, Zhijing Huang, Chenjie Gu, Tao Wang, Jinhui Xu, Zihan Yan, Feiyu Zhao, Pei Li, Yusong Tu, Yan Fan, Liang Chen
Summary: This research presents a self-powered humidity sensor with ultrafast response time and high selectivity to environmental stimuli. The sensor can be used in areas such as respiration monitoring, smart leaf surface humidity sensing, and energy harvesting.
MATERIALS & DESIGN
(2023)
Article
Chemistry, Physical
Neville J. Cory, Eran Visser, Jessica Chamier, Juliet Sackey, Franscious Cummings, Mahabubur Chowdhury
Summary: In this study, a CuO thin film sensor was prepared using electrodeposition method for photo electrochemical glucose detection, showing good amperometric performance and a wide linear range under light conditions. The band gap of photoactive CuO thin film can be tuned by etching in NH3 solution, and the oxidation of glucose is found to be an irreversible electron transfer process controlled by diffusion.
APPLIED SURFACE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Yu Sun, Ki Hei Wong, Kin Wing Kwok
Summary: This study demonstrates precise control of optical band gap in flexible lead-free ferroelectric films through mechanical strain, showing potential for high-performance optical devices and providing a new perspective for the design and fabrication of novel ferroelectric optical devices.
Article
Materials Science, Multidisciplinary
Ahmed M. Bolbol, Omar H. Abd-Elkader, Hassan Elshimy, Zaki I. Zaki, Salah A. Shata, M. Kamel, Ahmed S. Radwan, Nasser Y. Mostafa
Summary: In this study, dense thin films of TiO2 and TiO2 doped with Zr4+ were prepared using spin coating on glass substrate and characterized. The results showed that doping Zr4+ can change the optical and crystalline structure properties of TiO2, with higher doping concentration leading to lower band gap energy, slight lattice enlargement, and smaller crystal size. Additionally, the doped films exhibited typical photoluminescence in the visible spectrum region and had a lower rate of electron-hole recombination.
RESULTS IN PHYSICS
(2022)
Article
Engineering, Electrical & Electronic
Tao Liang, Wanting Hou, Jiuxiang Ji, Yuehua Huang
Summary: This paper proposes a flexible humidity sensor based on wrinkled reduced graphene oxide, which can adapt to the human surface and has a fast response and recovery speed, making it suitable for respiratory monitoring.
SENSORS AND ACTUATORS A-PHYSICAL
(2023)
Article
Engineering, Environmental
Guoqing Jin, Miao Sun, Yuan Gao, Xinghai Zhou, Chunyan Wei, Lihua Lyu
Summary: This study presents a novel fabrication method for high-performance, flexible humidity sensors by creating a directionally aligned CNFs/MWCNTs aerogel film (AGF) with optimized conductivity. The sensor sensitivity can be fine-tuned, and it achieves a peak response of 71.5% at 75% RH with rapid response and recovery times. The AGF sensors also possess excellent flexibility and bending resistance, making them suitable for wearable electronic applications and various humidity monitoring scenarios.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Qian Zhang, Yong Wang, Dongsheng Li, Jin Xie, Kai Tao, PingAn Hu, Jian Zhou, Honglong Chang, Yongqing Fu
Summary: A wireless platform based on flexible piezoelectric acoustics is developed with multiple functions of sensing, communication, and positioning. Different frequency stimulations are used to achieve respiratory monitoring, communication, and positioning applications. This study offers new insights into the potential applications of wireless and wearable sensor networks.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Analytical
Hanlin Wang, Joe Boardman, Xiaoyan Zhang, Chao Sun, Meng Cai, Jun Wei, Zhiqiang Dong, Mingqian Feng, Dongfang Liang, Sheng Hu, Yu Qian, Shuang Dong, Yongqing Fu, Hamdi Torun, Aled Clayton, Zhenlin Wu, Zhihua Xie, Xin Yang
Summary: An enhanced tilted-angle (ETA) acoustofluidic device is developed for cell mechanophenotyping, which can distinguish and identify different cell types based on their acoustic contrast factors. The device uses an interdigital transducer and introduces a 5-degree inclination angle to manipulate cells according to their mechanical properties. The methodology is demonstrated by distinguishing lung and breast cancer cells from leukocytes.
ANALYTICA CHIMICA ACTA
(2023)
Article
Physics, Applied
Tengfei Zheng, Yue Liu, Yongqing Fu, Chaohui Wang
Summary: In this paper, a technique using asymmetrically aligned focused surface acoustic waves (FSAWs) was developed to enhance the sensitivity of microarray electrode detection. The effects of various focusing angles of the FSAW devices on acoustic wave amplitudes were analyzed, and the sensitivity of microarray electrochemical sensors was investigated using the FSAW device with a focusing angle of 30 degrees.
APPLIED PHYSICS LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Mehdi H. Biroun, Luke Haworth, Hossein Abdolnezhad, Arash Khosravi, Prashant Agrawal, Glen McHale, Hamdi Torun, Ciro Semprebon, Masoud Jabbari, Yong-Qing Fu
Summary: Droplet impact behavior on solid surfaces is crucial for industrial applications such as spray coating, food production, printing, and agriculture. The challenge lies in modifying and controlling the impact regime and contact time of the droplets, which becomes more critical for non-Newtonian liquids. This study explores the impact dynamics of non-Newtonian liquids on superhydrophobic surfaces and shows that the addition of Xanthan alters the shape and reduces the contact time of the droplets.
Article
Instruments & Instrumentation
Haiying Yang, Haibao Lu, Dong-Wei Shu, Yong Qing (Richard) Fu
Summary: This study investigated the effects of crease direction, number of sides, and unit arrangement on the mechanical properties and deformation behaviors of origami structures. It was found that the metamaterials can transition from a monostable state to a quasi-static stiffness state and then to bistable states as the number of sides increases from 3 to 8. Additionally, shape memory polymers were printed using 3D printing technology to achieve smart origami metamaterials with shape memory effect and temperature-responsive mechanical behavior.
SMART MATERIALS AND STRUCTURES
(2023)
Article
Spectroscopy
Qiaoyun Wang, Shuai Song, Lei Li, Da Wen, Peng Shan, Zhigang Li, YongQing Fu
Summary: Raman spectroscopy, with its advantages of non-contact nature, rapid detection, and minimum water interference, is promising for non-invasive blood detection or diagnosis in clinic applications. In this study, extreme learning machine (ELM) algorithm and a multivariate calibration regression model are applied to analyze the results from Raman spectroscopy and determine the component's concentrations in blood samples. Self-adaption differential evolution artificial bee colony (SADEABC) algorithm is further applied to increase the data's accuracy and robustness.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Chemistry, Analytical
Jiandong Liu, Bin Liu, Juan Liu, Xing-Dao He, Jinhui Yuan, Zabih Ghassemlooy, Hamdi Torun, Yong-Qing Fu, Xuewu Dai, Wai Pang Ng, Richard Binns, Qiang Wu
Summary: A high quality factor (Q-factor) optical fiber interferometer based biosensing platform, combining single mode-core-only-single mode fiber (SCS) and multimode interference effect, is developed for ultra-high sensitivity biosensing. This biosensor is capable of effectively detecting concentrations of Staphylococcus aureus from 10 to 105 CFU/mL, with good sensitivity, stability, reproducibility and specificity, showing great potentials in diagnostics.
Article
Physics, Applied
Zhangbin Ji, Jian Zhou, Yihao Guo, Yahui He, Huigao Duan, Yongqing Fu
Summary: We proposed a strategy to achieve omnidirectional strain detection by applying a single flexible surface acoustic wave (SAW) strain sensor empowered by a machine learning algorithm to analyze multiple signals derived from the same device. Using AlN/flexible glass based SAW devices, we performed omnidirectional strain predictions using eight different machine learning models, and the extreme gradient boosting (XGBoost) model showed the highest prediction ability and the best accuracy for both strain intensity and direction.
APPLIED PHYSICS LETTERS
(2023)
Article
Biophysics
Yuyang Li, Yuan Li, Rui Zhang, Songlin Li, Zhao Liu, Jia Zhang, Yongqing Fu
Summary: With the increasing use of miniaturized and intelligent wearable devices, it has become crucial to continuously monitor subtle spatial and temporal changes in human physiological states for daily healthcare and professional medical diagnosis. This paper reviews recent advances in wearable acoustical sensors for medical applications, including their structural designs, fabrication techniques, and diagnostic applications. The challenges and future research directions in this field are also highlighted.
BIOSENSORS & BIOELECTRONICS
(2023)
Article
Engineering, Environmental
Hui Chen, Jian Zhou, Xinxin Long, Fengling Zhuo, Ying Liu, Yihan Zhao, Jianfei Xie, Huigao Duan, Yongqing Fu
Summary: Next generation epidermal and wearable strain sensors have emerged as promising candidates for various applications. However, the overshooting issues and achieving high sensitivity within a full-body motion strain range are major challenges. Here, a conductive electrospun fibrous mats composed of graphene anchored into fibrous thermoplastic polyurethane is proposed to address these challenges.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Materials Science, Multidisciplinary
Hui Ling Ong, Deyu Yang, Hui Chen, Jian Zhou, Luke Haworth, Jikai Zhang, Des Gibson, Prashant Agrawal, Hamdi Torun, Qiang Wu, Xianghui Hou, YongQing Fu
Summary: There are concerns on poor visibility and hazardous issues due to fogging and ice/frost formation on glass surfaces. Existing methods for monitoring and removal are not always effective. This study proposed a novel strategy using transparent thin film surface acoustic wave (SAW) devices to achieve de-fogging, active anti-icing and de-icing mechanisms. The results showed that SAW devices significantly reduced de-fogging time, delayed icing accretion, and promoted de-icing on glass substrate.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Bo Sun, Wenge Chen, Hui Zhang, Tao Feng, Wanqing Xing, Ahmed Elmarakbi, Yong-Qing Fu
Summary: CeO2 decorated reduced graphene oxide (CeO2@rGO) nanocomposites were synthesized and studied for their tribological, anti-corrosive, and photocatalytic applications. The nanocomposites exhibited reduced friction coefficient in the presence of lubricating oil, improved corrosion resistance in the coating, and enhanced efficiency in RhB dye removal. These effects are attributed to the unique properties and synergistic effects of the CeO2 nanoparticles and rGO in the nanocomposites.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Engineering, Electrical & Electronic
Wenyi Sun, Shuai Song, Bairen Qian, Da Wen, Daying Jiang, Yongqing Fu, Qiaoyun Wang
Summary: Diabetes is a common chronic disease worldwide, with increasing prevalence among young children. This article explores the use of multivariate statistical analysis and Fourier Transform Raman spectroscopy to monitor blood glucose levels. The results show that the developed method, using principal component regression with direct orthogonal signal correction, has a low calibration error, high prediction accuracy, and strong potential as a diagnostic tool for diabetes mellitus.
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS
(2023)
Article
Engineering, Multidisciplinary
JingYun Liu, HaiBao Lu, Yong-Qing Fu
Summary: Glass transition is critical in determining the dynamics of amorphous shape memory polymers (SMPs), but the relationship between shape memory effect (SME) and dynamic glass transition remains unclear. This study uses an Adam-Gibbs (AG) domain size model and develops a mean-square displacement function, as well as a statistical viscosity equation and a dynamically spinodal model, to explore the metastable glass transition and thermomechanical evolutions in amorphous SMPs. Multiple shape memory behaviors are predicted and the proposed models are verified using experimental data.
SCIENCE CHINA-TECHNOLOGICAL SCIENCES
(2023)
Article
Chemistry, Analytical
Chong Li, Ran Tao, Zhiqiong Li, Jiahui Liao, Chen Fu, Jikai Zhang, Huiling Ong, Chenze Lu, Jingting Luo, Yongqing Fu
Summary: High-performance humidity sensors with good stability, high precision, and fast responses are in high demand for various applications. In this study, Love wave mode humidity sensors were developed using quartz-based SAW devices and composite sensing layers of Ti3C2Tx, MoS2 nanoflowers, and MoS2 @Ti3C2Tx. The MoS2 @Ti3C2Tx coated humidity sensor exhibited an ultra-high sensitivity of 0.67 kHz/% RH in a wide humidity range, along with fast response/recovery rates, great repeatability, and long-term stability.
SENSORS AND ACTUATORS B-CHEMICAL
(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)
