JOURNAL OF THE AMERICAN CERAMIC SOCIETY
·
2025
·
IF 3.8
Mengqiu Guan,Wenhan Han,Kailei Lu,Yuhong Xie,Zijie Li,Yucheng Ye,Guixin Wang,Jianqi Qi,Tiecheng Lu
In response to the urgent demand for windows with multi-mode self-calibrated temperature feedback operating over a wide range in extreme environments, herein, Pr 3+ –Er 3+ co-doped Y 2 Zr 2 O 7 (YZO) transparent ceramics were developed. After annealing treatment to remove defects, these ceramics exhibit high transparency and temperature-dependent wide-range photoluminescence, in which the in-line transmittance is up to 77.8% at 760 nm (theoretical limit is 78%), and the luminescence band spans blue to red. Furthermore, based on the luminescence intensity ratio technology, a multi-mode temperature sensing window using highly transparent YZO:Pr/Er ceramics was designed. The developed photothermal window shows relatively high sensitivity, in which absolute sensitivity ( S a ) and relative sensitivity ( S r ) reached 0.0105 K −1 at 363 K and 1.295% K −1 at 301 K, respectively. The developed thermometer could provide a reference for self-calibrated thermometer window, and its wide spectral operating range ensures the reliability of temperature measurement, which has the potential to be used in some extreme conditions.
研究领域:
材料科学
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光学工程
·
物理学
✓ 已验证
产品关联
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2013
·
IF 3.535
Wen-Jie Zhu,Da-Qian Feng,Meng Chen,Zhi-Dong Chen,Rong Zhu,Hai-Lin Fang,Wei Wang
In this contribution, we first developed a semiquantitative method for the detection of glucose with self-calibration based on bienzyme colorimetry by using tree-shaped paper strip. The GOD/HRP bienzyme system was utilized to amplify the color signal in the aqueous phase. Moreover, we employed a paper as microfluidic media for running colorimetric assay, while tree-shaped paper strip was designed to ensure uniform microfluidic flow for multiple branches. Our proposed method gives direct outcomes which can be observed by the naked eye or recorded by a simple camera. The linear range is from 1.0 × 10 −3 to 11.0 × 10 −3 M, with a detection limit of 3 × 10 −4 M. Furthermore, the effect of detection condition has been investigated and discussed comprehensively. The result of determining glucose in human serum is consistent with that of detecting standard glucose solution by using our developed approach. A low-cost, simple, and rapid colorimetric method for the simultaneous detection of glucose with self-calibration on the tree-shaped paper has been proposed.
研究领域:
分析化学
·
医学诊断
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产品关联
DOI
高影响因子
FOOD CHEMISTRY
·
2022
·
IF 9.231
Xiuxiu Dai,Zengqiang Liang,Yang Li,Jian Tao,Lingbo Qu,Linping Zhao,Ran Yang
Excessive copper in wine can cause formation of oxidation reactions and affect the quality of wine. Herein, a rapid self-calibrating fluorescence sensing system for the detection of copper (II) ions in wine was developed. The sensing system has a dual-emission peak of 480 nm and 550 nm at the excitation wavelength of 390 nm. Only the yellow fluorescence can be selectively quenched by copper (II) ions. In contrast, the blue fluorescence stays almost constant, resulting in the apparent change of fluorescence image from yellow to blue. The reaction can be completed within 8 s. The sensing system showed a good linear relationship with copper (II) ions concentration in 0–4 μmol/L, with a detection limit of 46.5 nmol/L. Based on this sensing system, a fluorescent dual-tube detection bottle was designed to detect copper (II) ions more conveniently and was successfully applied to detect copper (II) ions in wine.
研究领域:
分析化学
·
食品科学
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF LUMINESCENCE
·
2022
·
IF 4.171
Yiying Li,Wenwu You,Jun Zhao,Xiaomin Zhang,Gencai Pan,Yanli Mao
In this work, Al 2 W 3 O 12 :1%Cr 3+ ,2%Eu 3+ with two discriminable dual emissive centers is synthesized. Both Eu 3+ and Cr 3+ ions can be excited efficiently by 465 nm. Photoluminescence excitation (PLE) spectra and photoluminescence (PL) lifetime indicate that there is no energy transfer (ET) between Eu 3+ and Cr 3+ ions. It is worth noting that the photothermal stability of Eu 3+ ions is much better than that of Cr 3+ ions. Specifically, the ratio of I Cr /I Eu decreases linearly with increasing temperature. Therefore, a blue-LED-excitable luminescent thermometer based on Cr 3+ /Eu 3+ co-doped Al 2 W 3 O 12 is proposed. This developed self-calibrated luminescent temperature sensor possesses the relatively high absolute and relative sensitivity (0.38 K -1 and 2.9% K −1 respectively) as well as good cycle stability among the previously reported TM/Ln-based luminescent; thermometers. These superior features of the developed self-calibrated luminescent thermometer (SCLT) make it a very promising candidate for temperature sensing applications.
研究领域:
材料科学
·
光学
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产品关联
DOI
高影响因子
The Innovation
·
2025
·
IF 25.7
Xiangling Li,Shantao Zheng,Mengyi He,Xinshuo Huang,Cheng Yang,Jingshan Mo,Jingbo Yang,Chengduan Yang,Huijiuan Chen,Xi Xie
Monitoring multiplexed biochemical markers is beneficial for the comprehensive evaluation of diabetes-associated complications. Techniques for multiplexed analyses in interstitial fluids have often been restricted by the difficulties of electrode materials in accurately detecting chemicals in complex subcutaneous spaces. In particular, the signal stability of enzyme-based sensing electrodes often inevitably decreases due to enzyme degradation or interference in vivo . In this study, we developed a self-calibrating multiplexed microneedle (MN) electrode array (SC-MMNEA) capable of continuous, real-time monitoring of multiple types of bioanalytes (glucose, cholesterol, uric acid, lactate, reactive oxygen species [ROSs], Na + , K + , Ca 2+ , and pH) in the subcutaneous space. Each type of analyte was detected by a discrete MN electrode assembled in an integrated array with single-MN resolution. Moreover, this device utilized an MN-delivery-mediated self-calibration technique to address the inherent problem of decreased accuracy of implantable electrodes caused by long-term tissue variation and enzyme degradation, and this technique might increase the reliability of the MN sensors. Our results indicated that SC-MMNEA could provide real-time monitoring of multiplexed analyte concentrations in a rat model with good accuracy, especially after self-calibration. SC-MMNEA has the advantages of in situ and minimally invasive monitoring of physiological states and the potential to promote wearable devices for long-term monitoring of chemical species in vivo .
研究领域:
医学工程
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生物传感器
·
糖尿病研究
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产品关联
DOI
PubMed
高影响因子
Food Chemistry-X
·
2024
·
IF 6.5
Jinxin Chen,Cheng Zhang,Lunzhao Yi,Fengmin Duan,Ying Gu,Kun Ge,Xuejing Fan
The improvement of detection accuracy without loss of rapidity and sensitivity by optical sensors in complex food analysis is still full of challenges owing to the matrix interference. Herein, a novel and simple self-calibration colorimetric/fluorescence/surface-enhanced Raman spectroscopy (SERS) tri-modal optical sensor based on aminated Rhodamine 6G (R6G-NH 2 ) was developed for highly rapid, sensitive, and accurate detection of Hg 2+ in food samples. The high recognition specificity of R6G-NH 2 for Hg 2+ can be achieved through the metal chelation interaction between Hg 2+ and -NH 2 , -COOH groups in R6G-NH 2 with formation of R6G-NH 2 -Hg 2+ -R6G-NH 2 complex. The DFT and FDTD simulations were adopted to confirm the theoretical feasibility in Hg 2+ detection by tri-modal optical. Under the optimum conditions, the analytical method based on self-calibration tri-modal optical sensor for Hg 2+ detection was established with promising properties (rapidity, linearity, linear range, LOD, and LOQ), providing a strategy in rapid, selective, sensitive, and accurate detection for food safety.
研究领域:
分析化学
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食品科学
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环境科学
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产品关联
DOI
PubMed
高影响因子
ACS Applied Nano Materials
·
2025
·
IF 5.5
Wei Sheng,Jianxin Zhou,Wentao Li,Wenjie Xu,Yuxi Jia,Tao Zhang,Weini Wang
Hydrogels exhibit mechanical properties very similar to biological skin, rendering them promising candidates for electronic skin (e-skin) sensors. However, these materials suffer from significant temperature-induced electrical drift and unstable interfacial contact with metallic electrodes. In this study, we employ elastic graphene foam as electrodes to realize a fully flexible hydrogel device architecture. By designing straight-line and serpentine hydrogel geometries, we enable temperature self-calibration during strain measurements. The resulting hydrogel sensor demonstrates exceptional performance, including constant strain sensitivity (GF = 2.44 with linearity R2 = 0.9999), rapid strain dynamic response (70 ms), low strain detection limit (0.05%), and low temperature drift. This approach not only addresses critical limitations in hydrogel-based sensing platforms but also establishes a robust framework for developing more reliable and versatile flexible sensors.
研究领域:
材料科学
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传感器技术
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产品关联
DOI
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2024
·
IF 12.2
Qijia Zhang,Jinkun Yan,Xiaodi Ma,Lefa Zhao,Peng Song,Lixin Xia
Flexible surface-enhanced Raman scattering (SERS) has received considerable attention in the field of rapid analysis. However, obtaining accurate quantitative SERS results remains challenging. Here, we develop a SERS sensor based on self-assembly and mask-assisted techniques for the precise transfer of Au@PB@Ag nanoarrays onto filter paper. Prussian blue (PB) as an internal standard (IS) is used to calibrate the fluctuations in the SERS signal induced by the microstructure of the filter paper, and can generate a local plasmon resonance under a Raman laser at a wavelength of 633 nm, which enables a dual electromagnetic enhancement of the internal self-calibration and external target molecule signals. The SERS substrate has a low limit of detection of 3.96 × 10 −9 , a uniformity relative standard deviation (RSD) of 9.94 % (16.85 % uncalibrated), a repeatability RSD of 9.43 % (31.2 % for Au@Ag NPs), and remains stable for more than 45 days. Thiram and thiabendazole in fruit juices can be quantitatively detected using patterned transfer monolayer arrays with a common dropper. The R 2 coefficients of the pesticide concentration and Raman intensity fitting curves improved from 0.9659 and 0.9499 to 0.9976 and 0.9928, respectively. Thus, paper-based Au@PB@Ag nanoarrays have facilitated the development of SERS technology for practical applications.
研究领域:
分析化学
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纳米技术
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环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
TALANTA
·
2022
·
IF 6.556
Ting Chen,Yuye Li,Shuyun Meng,Chang Liu,Dong Liu,Daming Dong,Tianyan You
Ratiometric electrochemical aptasensors based on the two different redox reporters can hardly achieve the efficient self-calibration, as a result of variations between reporters. In this work, we reported a ratiometric electrochemical aptasensor using ferrocene as a single redox reporter (Fc) to achieve self-calibrating electrochemical detection of aflatoxin B1 (AFB1). The hybrid duplex of Fc-labeled AFB1 aptamer (Fc-Apt) and Fc-labeled assistant DNA (Fc-aDNA) was designed to construct the sensing interface. Such DNA structure adopted the fixed molar ratio (1:1) and locations (the distances to electrode) of these two types of Fc (i.e., Fc-Apt and Fc-aDNA). In this way, the ratio of redox currents from Fc-Apt (I Fc-Apt ) and Fc-aDNA (I Fc-aDNA ) kept stable under the varied temperatures (15–40 °C) and pH values (4–10). Moreover, values of I Fc-Apt and I Fc-aDNA under the different conditions can be calculated simply by recording the total current of Fc (I Fc-total ). For analysis, the recognition of AFB1 by Fc-Apt led to the striping of their complex from the aptasensor, resulting in a decrease in I Fc-Apt while I Fc-aDNA remained stable. Consequently, the developed aptasensor using the ratio of I Fc-Apt /I Fc-aDNA as a yardstick offered a linear range of 0.1–10000 pg mL −1 with a detection limit of 0.012 pg mL −1 for the detection of AFB1. The applicability of aptasensor was validated by corn sample analysis, which exhibited comparable reliability and accuracy of gold standard method, i.e., HPLC-MS/MS. Our work provided an efficient strategy to fabricate high-performance ratiometric electrochemical aptasensors.
研究领域:
生物传感技术
·
食品安全检测
·
分析化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Nano Materials
·
2022
·
IF 6.14
Hewen Yin,Yongya Zhang,Hui Dong,Lantao Liu,Xiaobing Wang,Yintang Zhang,Maotian Xu,Yanli Zhou
In this work, in situ confinement polymerization was developed for the formation of silver nanoclusters (AgNCs) homogeneously distributed on nitrogen-doped carbon (NCS) utilizing N-vinyl functionalized imidazolium ionic liquids (ILs) as stabilizers and carbon precursors. The fabricated AgNC@NCSs exhibited excellent electrochemical and catalytic properties due to their controlled structure and morphology, the unique layered structure of the carbon carriers, and the confinement effect. The AgNC@NCS material was further fabricated for a printing electrode, which also acted as an internal reference for ratiometric and accurate detection. Nitrite was used as a target to verify the feasibility of self-calibrating detection at the AgNC@NCS printing electrode. The present electrochemical sensor demonstrated superior nitrite sensing characteristics, accompanied by a wide linear range (1.12–1400 μM), low detection limit (0.38 μM), high stability, and strong anti-interference ability. Importantly, high reliability of this self-calibrating detection was obtained for nitrate determination in food samples. Our work provides an efficient strategy for the design of self-calibrating electrodes in the area of electrochemical sensing.
研究领域:
分析化学
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材料科学
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电化学
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产品关联
DOI
高影响因子
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
·
2023
·Vol. 415
·期 27
·6723-6731
·
IF 4.3
Dai Wenjing,Qi Bing,Li Zhihao,Wang Jie
In optical biosensing, analyte-independent factors such as autofluorescence interference and excitation source fluctuation decrease the sensitivity and accuracy. Herein, we reported a bimodal persistent luminescence strategy to design dual-emissive persistent luminescence nanoparticles (PLNPs) with built-in self-calibration to preclude interference from analyte-independent factors in biosensing. As a proof of concept, ZnGa 2 O 4 :Cr PLNPs with emissions at both 490 nm and 695 nm were designed. The I 490 /I 695 ratio of ZnGa 2 O 4 :Cr was readily adjusted by simply changing the doping concentration of Cr 3+ . The ZnGa 2 O 4 :Cr PLNPs were employed for the ratiometric detection of urinary mesna. A good linear relationship between the I 490 /I 695 ratio of ZnGa 2 O 4 :Cr-based nanoprobe and the concentration of mesna was obtained in the range of 0–40 μM. The limit of detection was about 0.40 μM. Results showed that autofluorescence interference from urine was totally eliminated by collecting the persistent luminescence signal of ZnGa 2 O 4 :Cr after excitation ceased. Moreover, the built-in self-calibration feature of the ratiometric ZnGa 2 O 4 :Cr PLNPs efficiently suppressed the interference from fluctuations in instrumental parameters during urinary mesna detection. The recovery rates of mesna in the spiked urine samples are in the range of 99.1~109.0%, showing the reliability of the ratiometric ZnGa 2 O 4 :Cr PLNPs in urinary mesna detection. ZnGa 2 O 4 :Cr can further be expanded to the detection of other analytes in complex matrices. This study may open new opportunities for the design of dual-emissive PLNPs with tunable ratios of emission intensity, and it can further promote the applications of optical biosensing in disease diagnosis, food safety, and environmental monitoring. Graphical abstract
研究领域:
生物传感
·
光学检测
·
医学诊断
✓ 已验证
产品关联
DOI
PubMed
高影响因子
FOOD CHEMISTRY
·
2022
·
IF 9.231
Baoqian Shi,Xinai Zhang,Wenting Li,Nini Liang,Xuetao Hu,Jianbo Xiao,Daoying Wang,Xiaobo Zou,Jiyong Shi
A novel ratiometric fluorescence sensor based on lanthanide-functionalized metal-organic frameworks (Ag + /Eu 3+ @UiO-66(COOH) 2 , AEUC) with intrinsic dual-emitting bands was fabricated to determine tetracycline (TC) residues by exploiting (UiO-66-(COOH) 2 , UC) as reference units, Eu 3+ as recognition units and Ag + as fluorescence enhancer. Benefiting from specific binding sites and functional adsorbent channels of AEUC, efficient capture and specific recognize toward TC could be achieved, remarkably enhancing the reliability. The synergistic effect of inner filter effect (IFE) and photoinduced electron transfer (PET) process between TC and AEUC was verified, enabling the detection limit and quantification limit of established strategy reaching as 12.8 nmol/L and 38.6 nmol/L and conspicuous fluorescence color gradation from red to blue. Given its portability, point-of-care sensing platform and nanoprobe-immobilized test-paper-based measurement allowing for on-site qualitative identification and semi-quantitative assay of TC was devised for sensing visualization and has been successfully applied in foodstuff samples, providing prospect in the field of smart devices for visual monitoring of TC.
研究领域:
分析化学
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食品科学
·
生物传感
✓ 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）