ANALYTICA CHIMICA ACTA
·
2021
·
IF 6.558
Feng Ding,Han Wen,Ruijiang Zhuo,Jiawei Li,Hui Zheng,Yuru Deng,Jianliang Shen,Xiaojun He
Hypochlorous acid (HClO) along with its ionic form, hypochlorite anion (ClO − ) are critical reactive oxygen species (ROS), which play vital roles in biological systems. Dysregulated production of HClO/ClO − can result in tissue damage and cause a variety of diseases. Besides, Sodium hypochlorite has been widely used as a bleaching agent for water disinfection , surface cleanin g in daily life. Excessive exposure to sodium hypochlorite will lead to symptoms of severe breathing and skin problems. Therefore, developing a state-of-the-art (simple, highly sensitive, highly selective and super fast-response) sensor for tracking HClO is of biological, toxicological, and environmental importance. Though many HClO probes have been reported so far, this big aim still presents a challenge. Researchers around the world are continuing to develop new HClO probes that could improve their sensitivity, selectivity , the limit of detection, response time, easiness to use, etc. Herein, with coumarin as the fluorophore molecule, we rationally developed a novel chemosensor ( CMTH ) for detecting HClO with both ratiometric and colorimetric responses resulted from the oxidation reaction of C N bond. Further analysis results indicated that CMTH can realize highly sensitive with low limit of detection (256 nM, among the best of its kind) and highly selective (over a bunch of interfering analytes) imaging detection of HClO in multiple organisms with low cytotoxicity, and good cell and tissue permeability as well. In particular, compared to other fluorescent HClO probes reported so far, CMTH excels in the response time to HClO (< 40 s), being the top-notch of its kind. Besides, owing to its excellent water solubility, CMTH can also be applied to track HClO in the environmental system. Taken together, we have presented here a novel chemosensor , CMTH , as a colorimetric and ratiometric chemosensor for highly sensitive and ultrafast imaging detection of HClO in aqueous solutions, eukaryotic cells, prokaryotic bacteria and vertebrate zebrafish.
研究领域:
分析化学
·
生物医学
·
环境科学
✓ 已验证
DOI
高影响因子
IEEE ELECTRON DEVICE LETTERS
·
2023
·Vol. 44
·期 7
·1152-1155
·
IF 4.9
Weishuai Duan,Zhe Liu,Xinfa Zhu,Biao He,Chao Fan,Yonghui Zhang,Mengjun Wang,Hongxing Zheng,Erping Li
Near-ultraviolet (NUV) detectors based on two-dimensional (2D) materials have garnered considerable attention owing to their atomic-scale thickness, varied bandgap, and strong interaction with incident light. In this work, homostructures composed of tin disulfide/chromium–doped tin disulfide (SnS
2
/Cr–SnS
2
) were proposed for 405 nm near-ultraviolet detectors. Afterward, superlative detectors were fabricated through the employment of micro-mechanical exfoliation and polydimethylsiloxane-assisted dry-transfer methods, anchored by the SnS
2
Cr–SnS
2
homostructures. The detectors demonstrated exceptional detection performance for 405 nm NUV radiation with a significant responsivity of
$2.04\times 10^{{3}}\,\,\text {A}\cdot \text {W}^{-{1}}$
and a short response time of 8 ms, exceeding that of detectors based on most 2D materials and even commercial light detectors (Thorlabs FD11A–Si). The work presents an effective homostructure for high-performance SnS
2
-based detectors, thereby opening an opportunity for the utilization of SnS
2
in NUV detectors.
研究领域:
材料科学
·
光电子学
✓ 已验证
DOI
高影响因子
Advanced Optical Materials
·
2023
·
IF 9
Ximing Sun,Zhanyu Wang,Xuejing Du,Dawei Zhao,Feng Cui,Lujia Cong,Yandong Ren
Optical communication has become a research hotspot in modern non-contact communication systems, and high-performance photodetectors, as a key component, are crucial for achieving high-fidelity signal transmission. Photoconductive devices (PCDs) are expected to find applications in the field of optical communication due to their advantages in high gain. However, it is difficult to achieve an effective balance between high responsiveness and fast response times in PCDs, leading to significant challenges in their commercial applications in the field of optical communication. In this paper, by employing both the mask method and channel width tuning method, a high-performance PCD is developed based on the Ag-MAPbI 3 -Ag structure, demonstrating a high responsivity of 45.5 A W −1 , a high detectivity of 7 × 10 12 Jones, and a fast response time of 0.35 ms. Finally, this device is integrated into an optical communication system using embedded technology, effectively achieves byte transmission, and demonstrates the practical application of single-crystal MAPbI 3 PCD as a signal receiver in the system. This research provides a noteworthy approach to facilitating the seamless integration and commercialization of optical communication systems utilizing perovskite single-crystal devices, while also paving the way for optical interconnects based on perovskite.
研究领域:
材料科学
·
光学工程
✓ 已验证
DOI
高影响因子
Journal of Materials Chemistry C
·
2025
·
IF 5.1
Xu Ma,Lijiu Cao,Nian Li,Yunpeng Gong,Yue Hu,Zongxing Yu,Tao Jin,Yufang Chen
Moisture-sensitive materials need to meet the technical requirements of low power consumption, high precision and integratability, which are crucial for the development of new advanced moisture-sensitive devices and humidity sensor technologies. In this work, polyacrylates (PAC) were modified with nano halloysite powders (HNTs) to prepare resistive halloysite/polyacrylate composite moisture-sensitive films (PAC/HNTs) with excellent performances. Compared with the humidity-sensitive performance of PAC, the response time was reduced from 5 s to 0.9 s in the humidity range of 11–96% RH. Particularly, in the 30–96% RH humidity range, the average power consumption of the device was 88.41 μW and exhibited excellent linearity (R = −0.99), low wet hysteresis (5.04% RH), and excellent thermal and long-term stability. Thus, PAC/HNTs hold significant potential in the development of new humidity-sensitive devices and sensors with fast response, low power consumption, high accuracy and integratability.
研究领域:
材料科学
·
传感技术
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2017
·Vol. 29
·期 1
·244-250
·
IF 2.019
Du Liting,Li Yu,Li Shouchun,Li Haiying,Liu Li,Cheng Yali,Duan Haojie
The hierarchical porous and nonporous SnO 2 microflowers was successfully synthesized by a simple hydrothermal method and followed by calcination procedure. The microstructure and morphology of the product were characterized by X-ray diffraction, energy dispersive X-ray spectroscopy, and scanning electron microscopy (SEM). The SEM images display that the prepared SnO 2 is a microflower composed of countless thin sheets, and each of the sheets covered in a series of porous by calcining at 500 °C. Nevertheless, there is no porous when it treated at 400 °C. The results of comparison show that the hierarchical porous SnO 2 microflowers (HPSM) sensors possess a preferable gas-sensing property. The response of HPSM sensors to 100 ppm ethanol is 205.6 at the optimum operating temperature 240 °C. Which sensitivity is almost 3.9 higher than the hierarchical nonporous SnO 2 microflowers (HNSM) (52.9). Meanwhile, the response and recovery times of HPSM (HNSM) are 3 s (3 s) and 45 s (145 s) to 100 ppm ethanol, respectively. What’s more, the minimum concentration of ethanol that we can detect is 0.1 (1.0) ppm, and the response value is 1.9 (2.0). At last, both HPSM and HNSM own a good selectivity.
研究领域:
材料科学
·
传感器技术
✓ 已验证
产品关联
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2025
·
IF 7.7
Lu Hao,Ji Li,Xinxing Wang,Bin Yue,Hong Shao,Feng Li,Tianqi Wang,Xiangting Dong
N-butanol, due to its poisonous and flammable nature, poses a significant danger to human health, making it crucial to monitor its presence in the environment. In this work, FeVO 4 nanofibers (550) with a one-dimensional (1D) structure have been successfully fabricated through a simple electrospinning combined with calcination at 550 °C. FeVO 4 nanofibers (550) exhibit a triclinic crystal structure and possess a 1D fiber morphology. Electrospun FeVO 4 nanofibers (550) are firstly used in gas sensing and have superior performance as n-butanol gas sensors. At an optimized working temperature of 300 °C, FeVO 4 nanofibers (550) achieve a peak response of 4.05 to 100 ppm n-butanol, short response/recovery time (3 and 14 s), remarkable selectivity for n-butanol gas compared to other tested gases. Mechanism of 1D FeVO 4 nanofibers (550) for enhanced gas sensing properties is clarified. Thus, FeVO 4 nanofibers (550) are a potentially promising substitute to the sensing layer of gas sensors.
研究领域:
材料科学
·
传感器技术
·
环境监测
✓ 已验证
产品关联
DOI
高影响因子
IEEE ELECTRON DEVICE LETTERS
·
2013
·Vol. 34
·期 11
·1424-1426
·
IF 2.789
Yupeng Zhang,Ying Zhang,Bo Fu,Wei Li,Wenbin Guo,Shengping Ruan,Dali Liu,Yu Chen
Sodium titanate Na
2
Ti
6
O
13
nanorods were synthesized by a hydrothermal method and characterized by X-ray diffraction and scanning electron microscopy. Then, the material was coated on a Al
2
O
3
ceramic substrate to fabricate humidity sensors using Ag-Pd as interdigitated electrodes. The sensor shows high humidity sensitivity and fast response and recovery. The impedance changes by five orders of magnitude over a relative humidity (RH) range from 11% to 95%. At the frequency of 100 Hz, response and recovery times are both <;2 s, and the maximum hysteresis is <;3% RH. In addition, the complex impedance at different RH was investigated to understand the sensing mechanism. The results indicate potential applications of sodium titanate for fabricating high-performance humidity sensors.
研究领域:
材料科学
·
传感器技术
✓ 已验证
DOI
高影响因子
ChemistrySelect
·
2024
·Vol. 9
·期 37
·e202402808
·
IF 1.9
Xia Yang,Qilong Ling,Yujia Lin,Yanfei Lv,Junhua Xi,Li Fu,Fei Chen,Rui Zhang,Shichao Zhao
Graphical The composite of copper iodide (CuI) nanomaterials and CuI-isopropanolamine complexes was prepared by dissolving CuI in C 3 H 9 NO and subsequent annealing. It exhibited exceptional sensing properties to 0.15 (mole fraction) ammonia: a high response of 7.5×10 5 , a rapid response time of 5 s, and exceptional selectivity, indicating promising potential for practical application in ammonia detection. With the increasing awareness of the hazards associated with ammonia (NH 3 ) contamination and the potential application of NH 3 detection in physical health monitoring, the exploration of high-performance NH 3 sensors has attracted significant attention in recent years. In this paper, we prepared copper iodide (CuI) nanomaterials combined with CuI-isopropanolamine (C 3 H 9 NO) complexes by dissolving CuI in C 3 H 9 NO and subsequent annealing. The resulting product demonstrated exceptional sensing performance to 0.15 (mole fraction) NH 3 , exhibiting a maximum response of 7.5×10 5 with a response time of 5 s. The achieved detection limit was 10 ppm. Our findings provide a valuable reference for further research on NH 3 sensors utilizing complexes formed by copper compounds and organic amines.
研究领域:
材料科学
·
化学传感器
·
环境监测
✓ 已验证
产品关联
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2024
·
IF 8
Jiaqi Lou,Yimeng Yang,Chengji Zhao
Polyhedral oligomeric silsesquioxane (POSS) is renowned for its facile modification and excellent stability, rendering it a promising candidate for humidity-sensitive materials. Achieving humidity sensors based on POSS with broad response ranges and fast response times remains a considerable hurdle. In this investigation, four organic-inorganic hybrid porous polymers, denoted as HCP-X, were synthesized through Friedel-Crafts reaction utilizing octaphenylcyclotetrasiloxane (OPCTS). The incorporation of hydrophilic functional groups onto HCP-X polymers increases their specific surface area and enhances their adsorption capacity for water molecules, thereby accelerating the humidity sensor's response to humidity. The resulting humidity sensors derived from HCP-X demonstrated rapid response times ranging from 0.6 s to 7 s. Notably, the HCP-B-SO 3 humidity sensor exhibited outstanding performance due to the synergistic effects of -OH and -SO 3 - groups, with a 6 orders of magnitude impedance change across the entire measured humidity range (11 % - 97 % RH), a rapid response time of 0.2 s, and excellent repeatability. It also showcased consistent long-term stability over a 30-day duration, maintaining its performance integrity at both 11 % and 97 % RH levels. The resulting humidity sensor was further utilized into non-contact switches and integrated into masks for health monitoring applications, underscoring its substantial potential in non-contact sensing and healthcare domains.
研究领域:
材料科学
·
生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
VACUUM
·
2024
·
IF 3.8
Longhao Liu,Kaixi Bi,Ganying Zeng,Yan Zhuang,Shuqi Han,Shengguo Zhang,Linyu Mei
With the advancement of infrared modulation technologies, infrared display devices have attracted increasing attention. Previous studies have mainly focused on the response time of infrared display devices and have achieved great success. Nevertheless, owing to the restricted material properties or modulation approaches, the response time of the majority of infrared modulating devices remains trapped at level for a few seconds. In this paper, we fabricated an infrared images display device based on lithium-ion intercalated multilayer graphene (MLG). By changing the lithium-ion content and current value, we had successfully improved its response time from approximately 140,000 ms to around 6 ms.Meanwhile, its absorbance also has significant changes within 0.8–1.8 μm (∼75 %–∼25 %) and 2.5–25 μm (∼45 %–∼2 %). In addition, multi-pixel infrared display unit has been realized on a flexible substrate. The letters "N, U, and C″ were dynamically displayed continuously at 3∗3 pixels by controlling lithium-ions intercalate MLG state. Our work is expected to provide theoretical and technological support for ultrafast flexible dynamic infrared display devices.
研究领域:
材料科学
·
光学工程
✓ 已验证
DOI
高影响因子
RSC Advances
·
2014
·Vol. 4
·期 29
·14997-15002
·
IF 3.708
Tian Lan,Wenjie Yang,Hao Huang,Yinghan Wang
Response time, an important property of polymer dispersed liquid crystals (PDLCs), was reported to be affected by the structures of the polymer matrix. In this study, reversible addition fragmentation chain transfer (RAFT) polymerization and atom transfer radical polymerization (ATRP) were used to synthesize a well-defined copolymer matrix. A kind of graft macroinitiator with both controlled main chain and branched chains was employed to prepare PDLCs with a graft copolymer matrix; meanwhile a linear macroinitiator was also synthesized to prepare PDLCs with a linear copolymer matrix. The effect of different matrix structures on response times was investigated. It was found that the introduction of branched chains made a big difference to response times, and a possible mechanism was proposed.
研究领域:
材料科学
·
高分子化学
✓ 已验证
产品关联
DOI
高影响因子
ACS Omega
·
2020
·
IF 2.87
Qiao Chen,Ning-bo Feng,Xian-he Huang,Yao Yao,Ying-rong Jin,Wei Pan,Dong Liu
The performance of a bismuth oxychloride (BiOCl)-based quartz crystal microbalance (QCM) humidity sensor was studied using an oscillating circuit method. The BiOCl powder was prepared by a hydrolysis method. Scanning electron microscopy, X-ray diffraction, and Fourier transform infrared spectroscopy were used to characterize the BiOCl sample. Its humidity-sensing property was analyzed by combining it with a QCM at room temperature (25 °C). Experimental results indicated that the BiOCl-based QCM sensor showed good humidity characteristics from 11.3 to 97.3%, such as good logarithmic frequency response to humidity levels (R2 = 0.994), fast response time (5.2 s)/recovery time (4.5 s), good reversibility, stability, repeatability, and low humidity hysteresis. In addition, the response to human nose breaths showed excellent practicability. Finally, the humidity sensing mechanism of the BiOCl-based QCM humidity sensor was discussed in detail. This work demonstrates that BiOCl is a promising candidate material for humidity detection.
研究领域:
材料科学
·
传感器技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）