Article
Physics, Applied
Guozhang Dai, Yang Xiang, Xindi Mo, Zhixing Xiao, Hua Yuan, Jiaxing Wan, Biao Liu, Junliang Yang
Summary: In this study, a CdS@CsPbBr3 core-shell microwire heterojunction was successfully fabricated and utilized for the production of a photodetector. The CdS@CsPbBr3 heterojunction exhibited improved performance parameters compared to a bare CdS photodetector, which can be attributed to the formation of a core-shell structure and the reduction of defect states.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Article
Chemistry, Physical
Shan Li, Yusong Zhi, Chao Lu, Chao Wu, Zuyong Yan, Zeng Liu, Jian Yang, Xulong Chu, Daoyou Guo, Peigang Li, Zhenping Wu, Weihua Tang
Summary: The paper presents a broadband ultraviolet self-powered photodetector based on a beta-Ga2O3/CuI heterostructure, demonstrating excellent performance under UVC light and remarkable stability. Insights into the intrinsic physical behaviors of the device are investigated through energy band diagrams and first principle calculations.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Article
Nanoscience & Nanotechnology
Tiancai Jiang, Ying Qiu, Jin Tao, Xi Xiao
Summary: In this study, Ga2O3@Al2O3 core-shell nanowires were synthesized for high-performance photodetectors. The nanowires exhibited high sensitivity, fast response speed, and superior specific detectivity and rejection ratio. This method provides an effective approach to design and prepare high-performance photonic devices.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Physical
M. Mozafari, Sh Nasresfahani, M. H. Sheikhi, H. Agharezaei
Summary: Embedding plasmonic metal nanostructures into semiconductor materials can enhance the performance of photodetectors, as demonstrated by the development of a high-performance broadband photodetector based on the new core-shell nanostructure Ag@PbS. This nanostructure showed excellent photodetecting performance, fast response time, and operational reliability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Siyu Feng, Zitong Liu, Lizhi Feng, Junchao Wang, Hanning Xu, Lijie Deng, Ouxiang Zhou, Xin Jiang, Baodan Liu, Xinglai Zhang
Summary: In this study, a novel n-Ga2O3/p-GaN vertical heterojunction was designed to construct a high-performance UV photodetector. It demonstrated low dark current and fast photoresponse speed, and could operate at 0 V bias with enhanced UV photoresponse and self-powered mechanism. Moreover, it was used as an imaging pixel in the imaging system, resulting in vivid image.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Li-Wen Mao, Li-Yuan Zhu, Tao Tao Wu, Lei Xu, Xuan-Hong Jin, Hong-Liang Lu
Summary: This study synthesized heterostructured Nb2O5/SnO2 core-shell nanorods using a hydrothermal strategy and atomic layer deposition. The gas sensors based on these nanorods demonstrated improved sensing performance, stable operation, and low power consumption, making them promising for practical applications in oil and gas drilling platforms and other industrial fields.
APPLIED SURFACE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Andrzej Stafiniak, Joanna Prazmowska, Joanna Kutrowska-Girzycka, Ryszard Korbutowicz, Lukasz Pawlaczyk, Joanna Jadczak, Jaroslaw Serafinczuk, Regina Paszkiewicz
Summary: In this study, Ga2O3 core-SnO2 shell nanowires were synthesized using thermal evaporation of metallic sources and Au thin layers were used as growth catalyst. Compared to pure gold thin films, nanowires obtained using Au colloid showed a closer resemblance to core-shell structures.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2022)
Article
Chemistry, Physical
Sourav Das, Sourabh Pal, Karin Larsson, Debabrata Mandal, Soumen Giri, Pallab Banerji, Amreesh Chandra, Rabaya Basori
Summary: Core-shell nanowire heterostructure is a new architecture for photodetector applications, which enhances light absorption and improves photodetector performance with enlarged active surface area. SnS2, as a coating material, has gained increasing interest in next-generation optoelectronic materials. In this study, the hydrothermally grown SnS2 and Si nanowire (SiNWs) core-shell heterostructure exhibited enhanced optoelectronic performance. The uniform coating of hydrothermally grown SnS2 on Si nanowire increased the effective junction area of the heterostructure, resulting in improved optoelectronic properties over a broad spectral range (300 - 1100 nm). Specifically, under 340 nm illumination, the core-shell photodetector showed high responsivity (-383 A/W) and extremely high external quantum efficiency (-2 x 105 %) at a low optical power (-20 nW/mm2). This SnS2/SiNWs core-shell heterostructure with significantly enhanced optoelectronic performance holds great potential for high-efficiency photodetector development.
APPLIED SURFACE SCIENCE
(2023)
Article
Engineering, Electrical & Electronic
Saba Khalili, Hossein Mahmoudi Chenari, Zeynep Orhan, Fatma Yildirim, Sakir Aydogan
Summary: We present a photodetector composed of electrospun SnO2 nanofibers on an n-type Si wafer, forming a SnO2 NFs/n-Si heterojunction architecture. The microstructure of the SnO2 NFs was analyzed using advanced X-ray diffraction. Optical properties were studied through DRS spectrum and photoluminescence measurements. In addition, the electrical characteristics of the SnO2 NFs/n-Si device, such as current-voltage, capacitance/conductance-voltage, and capacitance-frequency measurements, were analyzed in the dark. The photodetector characteristics, including ON/OFF ratio, detectivity, and responsivity, were also investigated under different light intensities.
SENSORS AND ACTUATORS A-PHYSICAL
(2022)
Article
Crystallography
Edgars Butanovs, Martins Zubkins, Ramunas Nedzinskas, Veronika Zadin, Boris Polyakov
Summary: Gallium oxide (Ga2O3) has potential as a new ultra-wide bandgap semiconductor, but its widespread use is limited by the lack of native p-type conductivity. Spinel zinc gallate (ZnGa2O4) is a potential matching material. In this study, two novel approaches of preparing one-dimensional Ga2O3-ZnGa2O4 core-shell nanowires were demonstrated and compared: direct deposition of a ZnGa2O4 coating using reactive magnetron co-sputtering, and annealing of a sacrificial ZnO coating to enable solid state reaction between ZnO and Ga2O3. The as-grown nanostructures were characterized using various techniques. The sacrificial layer conversion method resulted in a smoother and more uniform ZnGa2O4 coating. These heterostructures could be used for photocatalysis and nanoscale ultra-wide bandgap electronics.
JOURNAL OF CRYSTAL GROWTH
(2023)
Article
Physics, Applied
Yingqiu Zhang, Yuefei Wang, Rongpeng Fu, Jiangang Ma, Haiyang Xu, Bingsheng Li, Yichun Liu
Summary: The authors report the development of an indium tin oxide (ITO) decorated solar-blind deep ultraviolet photodetector based on high quality beta-Ga2O3 single crystal microwires. The device exhibits excellent performances including high responsivity, low dark current, fast rise and fall time, and high solar-blind/visible rejection ratio.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Article
Chemistry, Inorganic & Nuclear
Bo Deng, Rong He, Jing Zhang, Caiyin You, Yonglan Xi, Qingbo Xiao, Yongzheng Zhang, Haitao Liu, Meinan Liu, Fangmin Ye, Hongzhen Lin, Jian Wang
Summary: A new Sn-based anode material, SOWSH@PCNC, with high capacity and cycling stability, has been proposed for high-performance lithium-ion batteries.
INORGANIC CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Dongna Zou, Ruxangul Jamal, Tursun Abdiryim, Lielie Liu, Haile Liu, Nana Fan
Summary: The ZnO-NRs/poly(EDOT-Pyridine-EDOT) core/shell heterostructure nanoarrays were prepared by electrochemical polymerization and formed a p-n heterojunction UV photodetector. The results showed that the ZnO-NRs/poly(BPE) heterojunction effectively improved the response performance, with the highest photoresponsivity under 5 V bias voltage.
Article
Nanoscience & Nanotechnology
Hao Li, Peilong Xu, Di Liu, Junyu He, Hongliang Zu, Jianjun Song, Jun Zhang, Fenghui Tian, Maojin Yun, Fengyun Wang
Summary: One-dimensional metal-oxides (1D-MO) nanostructures are considered promising candidates for high-performance photodetectors due to their Schottky junction with FTO reducing bias voltage and the coverage of organic/inorganic hybrid perovskite improving response and recovery speeds.
Article
Engineering, Electrical & Electronic
Sourav Das, Sourabh Pal, Debabrata Mandal, Pallab Banerji, Amreesh Chandra, Rabaya Basori
Summary: Recently, metal-dichalcogenides (MDs) have attracted much attention for future optoelectronic devices due to their unique electronic and optical properties. However, the presence of structural defects hinders the application of MDs in device integration by trapping free charge carriers. In this study, ultraviolet (UV) treatment was used to successfully passivate defects in SnS2, resulting in significant improvement in the performance of the photodetector. The UV-treated SnS2 exhibited higher responsivity, external quantum efficiency, and faster response speed compared to the untreated SnS2.
IEEE TRANSACTIONS ON ELECTRON DEVICES
(2023)
Article
Biophysics
Jianfeng Li, Armin Reimers, Ka My Dang, Michael G. K. Brunk, Jonas Drewes, Ulrike M. Hirsch, Christian Willems, Christian E. H. Schmelzer, Thomas Groth, Ali Shaygan Nia, Xinliang Feng, Rainer Adelung, Wesley D. Sacher, Fabian Schuett, Joyce K. S. Poon
Summary: Engineered neural tissues can be used to study neurological conditions and drug screening. This study demonstrates the integration of optical dopamine sensors into three-dimensional tissue cultures, providing a way to monitor neurochemical concentrations in real time.
BIOSENSORS & BIOELECTRONICS
(2023)
Article
Nanoscience & Nanotechnology
Mircea Dragoman, Daniela Dragoman, Adrian Dinescu, Andrei Avram, Silviu Vulpe, Martino Aldrigo, Tudor Braniste, Victor Suman, Emil Rusu, Ion Tiginyanu
Summary: In a series of experiments on 10 nm thick SnS thin film-based back-gate transistors, it is demonstrated that the absence of gate voltage results in weak drain current and ambipolar transport mechanism. Applying a gate voltage as low as 1 mu V significantly increases the current and changes the dependence of drain current versus drain voltage (I (D)-V (D)), indicating p-type semiconductor behavior of SnS. This is due to the flow of current through a discontinuous superficial region of SnS film in the absence of gate voltage, but involving the inner and continuous SnS layer in electrical conduction when minute gate voltages are applied. High gate voltages can also tune the SnS bandgap.
Article
Nanoscience & Nanotechnology
Eloise Veys, Louis Makower, Marcus Williamson, Lena M. Saure, Rainer Adelung, Fabian Schutt, Nicola M. Pugno, Thomas James Marrow
Summary: Zinc oxide tetrapods possess remarkable functional and mechanical properties and can be applied in various fields including nanoelectronic and optoelectronic sensing, functional composites and coatings, and energy harvesting and storage. Through assembly into high porosity macroscopic ceramic framework structures, they can serve as versatile templates for fabricating other foam-like materials with multiple scales. In this study, we investigated the three-dimensional structure of low density interconnected zinc oxide tetrapod networks using high resolution X-ray computed tomography. In-situ observations during mechanical loading revealed the heterogeneous development of anelastic strain (damage) during compression and the homogeneous elastic recovery during unloading. Individual tetrapods were observed to deform through arm rotation to accommodate strain.
SCRIPTA MATERIALIA
(2023)
Article
Materials Science, Multidisciplinary
Irina Jin, Julian Strobel, Ulrich Schuermann, Vladimir Ciobanu, Veaceslav Ursaki, Leonid Gorceac, Boris Cinic, Cameliu Himcinschi, Rainer Adelung, Lorenz Kienle, Ion Tiginyanu
Summary: The self-catalyzed growth of InP nanowires on an aerographite substrate using high growth rate hydride vapor-phase epitaxy technology is demonstrated. The nanowires had aspect ratios higher than 200 and diameters of 0.2-2 μm. They were constant in diameter over their length, except for a well-faceted hexagonal tapered end. The growth process allows for the formation of self-catalyzed nanowires compatible with integrated circuit technology. Single-wire InP photodetectors with predominant sensitivity in the infrared spectral range have been prepared and characterized.
Article
Materials Science, Multidisciplinary
Eduard V. Monaico, Elena I. Monaico, Veaceslav V. Ursaki, Ion M. Tiginyanu
Summary: This study demonstrates the morphologies and topologies produced by anodization in binary semiconductor compounds with different bandgaps and crystallographic orientations, focusing on the technological procedures for generating controlled design arrays of pores. The mechanism of pore growth under the photoresist masks is discussed, as well as the connection between mask design and the architecture of the resulting porous structure. The study also investigates the evolution of physical characteristics resulting from anodization and briefly discusses potential practical applications of the proposed technological approaches and porous structures.
PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Niklas Wolff, Tudor Braniste, Helge Krueger, Sebastian Mangelsen, Redwanul Islam, Ulrich Schuermann, Lena M. Saure, Fabian Schuett, Sandra Hansen, Huayna Terraschke, Rainer Adelung, Ion Tiginyanu, Lorenz Kienle
Summary: This paper presents the synthesis and structural characterization of a hybrid beta-Ga2O3/ZnGa2O4 nanocomposite aero-network. Structural investigations reveal the transformation of the precursor aero-GaN(ZnO) network into hollow architectures composed of beta-Ga2O3 and ZnGa2O4 nanocrystals. The hybrid nanocomposite network demonstrates narrow band green light emission of ZnGa2O4 under UV light excitation and shows high initial capacities and exceptional rate performance for electrochemical applications.
Article
Chemistry, Physical
David Santos-Carballal, Oleg Lupan, Nicolae Magariu, Nicolai Ababii, Helge Krueger, Mani Teja Bodduluri, Nora H. de Leeuw, Sandra Hansen, Rainer Adelung
Summary: Lithium-ion batteries are crucial for the transition to a carbon-free society and their performance improvement and safety monitoring are important. Heterostructured solid-state sensors based on new materials show significant response to battery solvents and degassing products, making them promising for safety monitoring prototypes.
Article
Materials Science, Biomaterials
Anna Gapeeva, Haoyi Qiu, Ala Cojocaru, Christine Arndt, Tehseen Riaz, Fabian Schuett, Christine Selhuber-Unkel, Yogendra Kumar Mishra, Ayseguel Tura, Svenja Sonntag, Stefanie Gniesmer, Salvatore Grisanti, Soeren Kaps, Rainer Adelung
Summary: The burden of glaucoma is continuously increasing and is estimated to affect over 100 million people by 2040. Minimally invasive glaucoma surgery (MIGS) has emerged as an alternative to traditional treatments, utilizing micro-sized drainage stents to minimize tissue trauma and reduce recovery time. However, the foreign body reaction and fibrosis pose a major challenge for MIGS devices.
ACS BIOMATERIALS SCIENCE & ENGINEERING
(2023)
Article
Biochemistry & Molecular Biology
Carolin Kubelt, Dana Hellmold, Eva Peschke, Margarethe Hauck, Olga Will, Fabian Schuett, Ralph Lucius, Rainer Adelung, Regina Scherliess, Jan-Bernd Hoevener, Olav Jansen, Michael Synowitz, Janka Held-Feindt
Summary: Local drug delivery systems (LDDS) are potential therapies for glioblastoma (GBM), but their success has been limited. Establishing GBM animal models is crucial for evaluating LDDS, but few reports detail the process. In this study, a partial resection glioma model in rats was successfully established and used to evaluate the efficiency of LDDS. The results provide a powerful tool for future testing of these promising systems in clinical applications.
Article
Chemistry, Analytical
Mihai Brinza, Stefan Schroeder, Nicolai Ababii, Monja Gronenberg, Thomas Strunskus, Thierry Pauporte, Rainer Adelung, Franz Faupel, Oleg Lupan
Summary: Certain molecules in exhaled breath or outgassing vapors can act as biomarkers for various diseases and food spoilage. The development of small and reliable devices with high sensitivity for detection of these molecules is in demand. Metal-oxide gas sensors present an ideal solution, offering a tradeoff between performance and cost compared to other methods. However, selective detection of low levels of ammonia and multiple gases with one sensor remains a challenge.
Article
Computer Science, Interdisciplinary Applications
Felix Harden, Roland Kral, Birgit Schaedel, Rainer Adelung, Olaf Jacobs
Summary: Additive manufacturing techniques have the potential to revolutionize design and production, particularly in the area of non-assembly mechanisms consisting of kinematic pairs. This research explores the use of multi-material printing and heat treatment to overcome tolerance issues and create self-healing mechanisms. The study also discusses the tribological aspects of such mechanisms.
ENGINEERING REPORTS
(2023)
Article
Engineering, Chemical
Felix Harden, Birgit Schaedel, Marlon Siegel, Roland Kral, Rainer Adelung, Olaf Jacobs
Summary: Accurate assessment of wear behavior is crucial for optimization of tribological systems. This work proposes a novel approach to implement in-situ wear measurement of both wearing counterparts and demonstrates its feasibility on a ball-on-prism tribometer. Challenges such as radial runout, testing in media, and debris accumulation remain, but this advancement offers new possibilities for wear evaluation and optimization.
Article
Physics, Multidisciplinary
Eduard V. Monaico, Veaceslav V. Ursaki, Ion M. Tiginyanu
Summary: This paper discusses three different types of microstructures as substrates for electrochemical deposition of Au nanodots. The uniform deposition of Au nanodots with controlled density was successfully achieved by adjusting adjustable parameters, and the morphology of the produced hybrid microarchitectures was investigated using scanning electron microscopy. These microstructures are proposed as platforms for the development of complex 3D hybrid micro-nano-architectures with Au nanodots as catalysts.
EUROPEAN PHYSICAL JOURNAL PLUS
(2023)
Article
Biochemistry & Molecular Biology
Aike Bueter, Gregor Maschkowitz, Martina Baum, Yogendra Kumar Mishra, Leonard Siebert, Rainer Adelung, Helmut Fickenscher
Summary: This study aimed to compare the antibacterial and bactericidal properties of ZnO tetrapods with spherical, unstructured ZnO particles. The results showed that ZnO tetrapods exhibited significant bactericidal activity against Staphylococcus aureus and Klebsiella pneumoniae, while Pseudomonas aeruginosa and Enterococcus faecalis remained unaffected. Furthermore, treatment with methylene blue improved the antibacterial activity of spherical ZnO particles against Staphylococcus aureus.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Chemistry, Multidisciplinary
Lena M. Saure, Niklas Kohlmann, Haoyi Qiu, Shwetha Shetty, Ali Shaygan Nia, Narayanan Ravishankar, Xinliang Feng, Alexander Szameit, Lorenz Kienle, Rainer Adelung, Fabian Schuett
Summary: This study presents a fabrication concept for highly porous photothermal hybrid aeromaterials, which show an ultrarapid and volumetric photothermal response. By using light-scattering framework structures and functionalized reduced graphene oxide nanosheets, the volumetric photothermal enhancement is achieved.
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)