CERAMICS INTERNATIONAL
·
2020
·
IF 3.83
Xiuna Tian,Hongjian Dou,Lingyuan Wu
Based on the luminescence of Bi 3+ , novel temperature sensing materials YNbO 4 :Bi 3+ and YNbO 4 :Bi 3+ /Sm 3+ were successfully synthesized by solid state reaction. The XRD patterns show that the synthesized materials have a pure phase of YNbO 4 . With the excitation of 314 nm, the YNbO 4 :Bi 3+ material shows intense temperature-dependent luminescence in the range of 303 K–463 K. Based on the temperature-dependent luminescence of Bi 3+ in YNbO 4 , the maximum relative sensitivity can be obtained at 434 K (1.72% K −1 ). Under the excitation of 406 nm, the YNbO 4 :Sm 3+ material shows the characteristic emission peaks of Sm 3+ . In YNbO 4 :Bi 3+ /Sm 3+ phosphor, the large overlap between the emission spectra of Bi 3+ and the excitation spectra of Sm 3+ leads to a significant energy transfer from Bi 3+ to Sm 3+ . With the excitation of 314 nm, the emission spectra of YNbO 4 :Bi 3+ /Sm 3+ material shows the characteristic peaks of Bi 3+ and Sm 3+ . The luminescence intensity ratio of Sm 3+ and Bi 3+ shows a strong temperature dependence. Based on the luminescence intensity ratio, a large relative sensitivity is obtained at 455 K (1.57% K −1 ).
研究领域:
材料科学
·
光学
✓ 已验证
DOI
高影响因子
RSC Advances
·
2020
·Vol. 10
·期 18
·10972-10979
·
IF 3.119
Yixin Zhang,Jianping Ge
A traditional hydrogel photonic crystal sensor is prepared by multiple steps, including colloidal assembly, polymerization, and recognition group modification, and its measurement repeatability is a challenge due to the inevitable deviations in sensor fabrication and application. In this work, a salicylic acid-containing “SiO2/propylene carbonate” liquid photonic crystal (Sal-LPC), as a new photonic sensing material, was developed to demonstrate reliable measurement of Cu2+ in water. When the Sal-LPC reagent was mixed with the test sample, the Cu2+ promoted the release of H+ from Sal and shrank the photonic crystal lattice, so that the Cu2+ concentration could be determined by the reflection blueshift of liquid PC. The Sal-LPC reagent showed a stronger response to Cu2+ than to other cations, and its sensitivity and measurement range could be optimized by the particle fraction and Sal dosage. Compared to traditional PC hydrogel sensors, the liquid PC reagent was composed of colloidal particles and responsive species, which required no strict control in synthesis. More importantly, the optical response of the liquid PC reagent was scarcely affected by changes in synthesis, storage, or application, and it could interact with the analyte quickly and quantitatively, which ensured accurate and repeatable measurement in either chemical analysis or environmental monitoring.
研究领域:
分析化学
·
环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2022
·Vol. 57
·期 24
·11202-11214
·
IF 4.682
Liu Linxiang,Zhang Jiaqi,Shi Ge,Zhang Huili,Wang Bing,Zhong Linxin
Recently, wearable electronic devices and human–computer interaction are developing prosperously, which expands the requirement of flexible sensing materials. Graphene and its derivatives with extraordinary advantages are highly attractive precursors. However, it is difficult to assemble graphene into macroscopic cubes with good fatigue resistance performance. Here, we propose an efficient way to manufacture a lamellar-structural rGO aerogel with enhanced stiffness and deflection of lamellae, by using MXene as a rigidity additive. The addition of MXene (Ti 3 C 2 T x ) improves the mechanical and fatigue resistance properties of the aerogel, making it super compressible and elastic. The highly stable structure of the aerogel can withstand extremely high compressive strain of 90% and long-term compression at 50% strain for at least 10,000 cycles. The lamellar structure makes a great contribution to achieve good sensing performance including high linear sensitivity, low testing limit, wide testing strain range and quick response. These features make the MXene/rGO aerogel a promising sensing material for flexible wearable devices to monitor the subtle and obvious biosignals of the human body movement. Graphical abstract
研究领域:
材料科学
·
生物医学工程
✓ 已验证
DOI
高影响因子
RSC Advances
·
2023
·Vol. 13
·期 45
·31785-31794
·
IF 3.9
Yi Yu,Kai Shao,Chonghui Niu,Mingjie Dan,Yingying Wang,Xiourong Zhu,Xianke Zhang,Yeqing Wang
In recent years, more and more attention has been paid to optical temperature sensing, and how to improve its accuracy is the most important issue. Herein, a new temperature sensing material, SrGd2Al2O7:Bi3+,Mn4+, based on fluorescence intensity ratio was designed in this work. It has both blue-purple and red luminescence under 300 nm excitation, and the dual-emitting centers with distinct colors, the different thermal sensitivities of Bi3+ and Mn4+, and the energy transfer between Bi3+ and Mn4+ give it excellent signal resolution and accurate temperature detection. The Sa of SrGd2Al2O7:0.04Bi3+,0.003Mn4+ phosphor reaches a maximum value of 8.573% K−1 at 473 K, and the corresponding Sr is 1.927% K−1, both of which are significantly better than those of most other reported optical temperature sensing materials. Taking all the results into account, the SrGd2Al2O7:0.04Bi3+,0.003Mn4+ phosphor can be regarded as a prominent FIR-type temperature sensing material.
研究领域:
材料科学
·
光学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Materials Chemistry C
·
2019
·Vol. 7
·期 27
·8423-8431
·
IF 6.641
Yan Zheng,Qi Jin,Wanyi Chen,Yi Sun,Zhaoqun Wang
In the past decade, stretchable strain sensors have received widespread attention due to their enormous application potential, but it is still a challenge to obtain sensing materials with both high sensitivity and a wide operating range. To this end, we designed a binary structure composed of a polystyrene/graphene conductive microsphere array and graphene nanosheets mingled freely with the microsphere array. Based on this structure, it was found that the properties of the material can be effectively adjusted by controlling the particle size of the polystyrene microspheres and the graphene content. As expected, the bridging effect of this unique binary structure allows the sensor to exhibit high sensitivity (gauge factor = 481), a wide sensing range (maximum sensing strain = 104.5%) and good linearity (R2 ≥ 95%). And the structure has good stability, even after 3000 cycles there is no significant change in the sensing performance. In addition, by introducing one-dimensional oxidized carbon nanotubes and silver nanowires into the sensor to further enhance the bridging effect, the sensitivity and operating range of the sensor are improved again (gauge factor = 1171, maximum sensing strain = 134.4%). The sensor can be used for practical applications such as human motion detection and object mass detection.
研究领域:
材料科学
·
传感器技术
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2023
·
IF 5.2
Yan Fan,Xueqin Sun,Wenyuan Zhang,Jiacheng Liu
A novel fluorescent sensor material of Eu 3+ @ Citric acid-functionalized UiO-66 (denoted as Eu 3+ @UiO-66-CA) was prepared successfully via a two-step post synthetic modification towards UiO-66. The as-obtained Eu 3+ @UiO-66-CA presented the characteristic emission of Eu 3+ ions (λ ex = 270 nm), which could be used for rapidly detecting Fe 3+ and Cr 2 O 7 2- ions by luminescence quenching in aqueous solution. The detection process for Fe 3+ ion (detection limit, 18.1 μ M) and Cr 2 O 7 2- ion (detection limit, 8.5 μ M) exhibited the high selectivity and excellent anti-interference ability. Systematic investigations were employed to make clear the mechanism of fluorescence quenching after adding Fe 3+ and Cr 2 O 7 2- ions. Moreover, the Eu 3+ @UiO-66-CA was also used for the determination of Fe 3+ and Cr 2 O 7 2- ions in the Yellow River and tap water.
研究领域:
材料科学
·
环境科学
·
分析化学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Physical Chemistry C
·
2024
·
IF 3.3
Cimin Su,Donghao Xu,Kuangtong Li,Xiaoqin Xie,Yuhang Ren,Yifei Liu,Yahong Jin,Mingrun Du,Pengfei Shen
In scientific research and industrial applications, an accurate pressure measurement is essential for ensuring process control and safety. However, the pressure measurement range of high-sensitivity pressure measuring materials often fails to meet growing demands. Here, we report a new type of inorganic phosphor, Zn3Ga2GeO8:Mn4+, which offers higher sensitivity and a broader pressure measurement range. By employing in situ high-pressure photoluminescence (PL) measurement techniques, we conducted an in-depth analysis of the spectral characteristics of Zn3Ga2GeO8:Mn4+ under various pressures. The experimental results reveal a notable and consistent linear redshift of the luminescence peak center under pressure loading, exhibiting a pressure sensitivity of up to 0.844 nm/GPa, outperforming numerous current pressure sensing materials. Moreover, absorption spectral analysis indicates that the band gap decreases with increasing pressure, aligning with the phenomenon of redshift observed in PL. Meanwhile, Raman spectroscopy analysis confirms the stability of the material under high-pressure conditions. Our findings support the potential of Zn3Ga2GeO8:Mn4+ as a superior pressure sensor and contribute to the advancement of pressure sensing technology.
研究领域:
材料科学
·
光学工程
·
物理学
✓ 已验证
DOI
高影响因子
ADVANCED MATERIALS
·
2023
·Vol. 36
·期 7
·2310555
·
IF 29.4
Wenjie Wang,Yingfei Wang,Li Xiang,Long Chen,Lilei Yu,Anlian Pan,Jie Tan,Quan Yuan
Pain sensation is a crucial aspect of perception in the body. Force-activated nociceptors encode electrochemical signals and yield multilevel information of pain, thus enabling smart feedback. Inspired by the natural template, multi-dimensional mechano-sensing materials provide promising approaches for biomimetic nociceptors in intelligent terminals. However, the reliance on non-centrosymmetric crystals has narrowed the range of these materials. Here centrosymmetric crystal Cr 3+ -doped zinc gallogermanate (ZGGO:Cr) with multi-dimensional mechano-sensing is reported, eliminating the limitation of crystal structure. Under forces, ZGGO:Cr generates electrical signals imitating those of neuronal systems, and produces luminescence for spatial mapping of mechanical stimuli, suggesting a path toward bionic pain perception. On that basis, a wireless biomimetic nociceptor system is developed and a smart pain reflex in a robotic hand and robot-assisted biopsy surgery of rat and dog is achieved.
研究领域:
生物医学工程
·
材料科学
·
神经科学
✓ 已验证
DOI
高影响因子
Nature Protocols
·
2023
·Vol. 18
·期 5
·1621-1640
·
IF 14.8
Han Zongsu,Wang Kunyu,Zhou Hong-Cai,Cheng Peng,Shi Wei
Luminescent sensing materials are attractive for environmental analysis due to their potential for high selectivity, excellent sensitivity and rapid (even instantaneous) response towards targeted analytes in diverse sample matrices. Many types of analytes have been detected in samples of wastewater for environmental protection, reagents and products in industrial production of drugs and pesticides, and biological markers in blood and urine for early diagnosis. It is still challenging, however, to develop appropriate materials with optimal sensing function for a targeted analyte. Here we synthesize metal–organic frameworks (MOFs) bearing multiple luminescent centers, such as metal cations (for example, Eu 3+ and Tb 3+ ), organic ligands and guests, which are chosen for optimal selectivity for the analytes of interest, including industrial synthetic intermediates and chiral drugs. Interaction between the metal node, ligand, guest and analyte results in a complex system with different luminescence properties compared with the porous MOF on its own. The operation time for the synthesis is usually less than 4 h; the quick screening for sensitivity and selectivity takes ~0.5 h and includes steps to optimize the energy levels and spectrum parameters. It can be used to accelerate the discovery of advanced sensing materials for practical applications.
研究领域:
材料科学
·
环境科学
·
分析化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2025
·
IF 8.3
Chunyan Chen,Zhiwu Huang,Guoqing Xiao,Chunlin Chen,Xuehu He,Jiaxiang Chen,Xuan Zhou,Jiajia Cui,Tianju Zhu,Jiajia Zhang
Hydrogen energy is a highly promising clean energy source, held immense potential for commercial applications. However, the inherent flammability of hydrogen posed significant safety challenges, creating an urgent need for the development of reliable, standalone, and cost-effective hydrogen sensors. Currently, main hydrogen sensors typically relied on high-temperature operating conditions, which to some extent limited their deployment in specific application scenarios. Our research focused on material systems and structural design. Hollow spherical ZnSnO 3 nanoparticles were first synthesized, followed by uniform loading of ZnSnO 3 onto rGO aerogel to form a p-n heterojunction. Notably, the ZTO@rGA-4 sensor exhibited a high response value (98.2) to 10,000 ppm hydrogen at 25 °C, with short response/recovery time (44/92 s), alongside excellent repeatability and long-term stability.
✓ 已验证
产品关联
DOI
高影响因子
Inorganic Chemistry Frontiers
·
2025
·
IF 6.4
Xue Yang,Yucheng Li,Yibo Hu,Meng Gu,Yanshuo Han,Guibin Zhai,Jingkun Chen,Naixin Li,Sihan Yang,Kuan Ren,Jingtai Zhao,Jianguo Chen,Yan Zhao,Xuyong Yang,Qianli Li
This study demonstrates the synergistic integration of X-ray-induced radioluminescence (RL), persistent luminescence (PersL) and radio-photoluminescence (RPL) in a single material system, which provides innovative multimodal applications for radiometric information sensing, storage and reading, anti-counterfeiting and imaging. A novel radiation-sensing material, BaMgP2O7:Sm, was prepared using a high temperature solid state method. Under X-ray irradiation, the pale pink phosphor shows distinct luminescence from defects. Under 365 nm ultraviolet (UV) light (bright-field), it emits bright red light, confirming trivalent samarium (Sm3+) reduction to divalent samarium (Sm2+). In dark-field, orange fluorescence appears, indicating defect-mediated charge storage and slow release. Notably, the material enables single-irradiation multiple imaging, effectively overcoming the limitation of conventional materials that only allow single imaging per irradiation event, thereby greatly enhancing information utilization and imaging flexibility. Moreover, the flexible film based on polydimethylsiloxane (BaMgP2O7:Sm@PDMS) demonstrates remarkable tri-mode X-ray detection and imaging capabilities, it has a high spatial resolution of 14.4 lp mm−1, integrating real-time readout, delayed readout, and long-term information storage. BaMgP2O7:Sm enables dynamic anti-counterfeiting via time-dependent luminescence and precise radiation dose monitoring through X-ray responsive emission, these features make it a promising multifunctional material.
研究领域:
材料科学
·
生物医学工程
·
影像学
·
辐射探测
·
功能材料
·
分子影像
✓ 已验证
产品关联
DOI
高影响因子
MICROCHIMICA ACTA
·
2021
·Vol. 188
·期 5
·1-8
·
IF 5.833
Guo Ting,Wang Changchang,Zhou Hongyuan,Zhang Yuhao,Ma Liang
The construction of multifunctional sensors has attracted considerable attention due to their multifunctional properties, such as high sensitivity and rapid detection. Herein, near-infrared multifunctional fluorescent sensing materials based on core-shell upconversion nanoparticle@magnetic nanoparticle and molecularly imprinted polymers were synthesized for rapid detection of deltamethrin. The difunctional core-shell upconversion nanoparticle@magnetic nanoparticle was introduced as the optical signal and rapid separator. Firstly, the difunctional core-shell materials were prepared through solvothermal method. Then, molecularly imprinted polymers (MIPs) as recognition elements for deltamethrin were coated on the surface of upconversion nanoparticle@magnetic nanoparticle through polymerization. The structure and recognition characterizations of multifunctional fluorescent sensing materials were evaluated. Under optimal condition, the imprinting factor of sensing materials was 3.63, and the fluorescence intensity of sensing materials decreased linearly with increasing concentration of deltamethrin from 0.001 to 1 mg L −1 with a detection limit of 0.749 μg L −1 , and a relative standard deviation of 3.10% was obtained with 5 mg L −1 deltamethrin. The sensing materials showed a high selectivity and were successfully utilized for the detection of deltamethrin in grapes and cabbages; the results showed that the recoveries for two samples obtained were 95.6–102% and 91.8–105%. Graphical abstract
研究领域:
分析化学
·
材料科学
·
环境科学
✓ 已验证
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）