Nanomaterials
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2022
·Vol. 12
·期 13
·2288
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IF 5.719
Chenyu Zhu,Qiao Wang,Guorong Sun,Suo Zhao,Yao Wang,Tonghui Li,Xianglong Hao,Mikhail Artemyev,Jianguo Tang
In this paper, hydrophobic luminescent CdSe quantum dots are successfully dispersed in a mixture of styrene and methyl methacrylate through the oleic to methacrylic acid ligand exchange. Further in situ solution polymerization of the quantum dots in a mixture of styrene and methyl methacrylate followed by electrospinning allowed us to prepare luminescence hybrid styrene-co-methyl methacrylate fibers embedded with quantum dots. CdSe@P(S+MMA) hybrid fibers with 27% quantum yield showed excellent moisture, heat and salt resistance with a photoluminescence output below 120 °C. When dry heated, the hybrid fibers of the fluorescence signals decreased with temperature to 79%, 40%, 28%, 20% and 13% at 120 °C, 140 °C, 160 °C, 180 °C and 200 °C, respectively, due the to the chemical degradation of CdSe QDs. Such hybrid fibers show the potential to manufacture wearable moisture- and heat-sensing protective clothing in a 120–200 °C range due to the thermal-induced quenching of quantum dot photoluminescence.Keywords:CdSe;polymer;hybrid fibers;photoluminescence thermal sensor
研究领域:
材料科学
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纳米技术
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DOI
PubMed
高影响因子
JOURNAL OF MOLECULAR STRUCTURE
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2021
·
IF 3.196
Yuanyuan Cao,Jing Wang,Bo Jiang,Shuqin Jiang,Zhiwei Sun
Cheap and highly thermal-sensitive liquid media with favorable physical properties is one of the key parameters for achieving the efficient near-infrared light (NIR) photothermal sensor with high potential application. However, the reported liquid media for photothermal sensor is expensive or non-efficient. Herein, several deep eutectic solvents (DESs) composed by DBU and LiNO 3 with different mole ratio are utilized as liquid media and DBU:LiNO 3 (3:1) shows the best thermal-sensitive ability. After doping photothermal agents polydopamine (PDA) with DBU:LiNO 3 (3:1), the efficiency of photothermal sensor could reach 1100.25%, much higher than the highest value of the previous report (ca. 379.91%) at the same NIR light power. Cycle investigation on the NIR photothermal sensor could be recycled at least five times with negligible loss of efficiency. Most importantly, the price of DBU:LiNO 3 (3:1) in this work is also about one third of the previous report. This work broadens the design strategy for highly efficient NIR photothermal sensor through selecting appropriate component and regulating suitable mole ratio of DESs with low cost and high sustainability.
研究领域:
材料科学
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光学工程
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DOI
高影响因子
ANALYTICA CHIMICA ACTA
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2024
·
IF 5.7
Jingman Zhang,Yiying Luo,Yiyu Chen,Huiting Lian,Bin Liu,Chunnuan Chen,Xiaofeng Wei
Background Temperature sensing is commonly used in point-of-care (POC) detection technologies, yet the portability and convenience of use are frequently compromised by the complexity of thermosensitive processes and signal transduction. Especially, multi-step target recognition reactions and temperature measurement in the reaction vessel present challenges in terms of stability and integration of detection devices. To further combine photothermal reaction and signal readout in one assay, these two processes enable to be integrated into miniaturized microfluidic chips, thereby facilitating photothermal sensing and achieving a simple visual temperature sensing as POC detection. Results A copper ion (Cu 2+ )-catalyzed photothermal sensing system integrated onto a microfluidic distance-based analytical device (μDAD), enabling the visual, portable, and sensitive quantitative detection of multiple targets, including ascorbic acid, glutathione, and alkaline phosphatase (ALP). The polydopamine nanoparticles (PDA NPs) were synthesized by the regulation of free Cu 2+ through redox or coordination reactions, facilitating the transduction of distinct photothermal response signals and providing the versatile Cu 2+ -responsive sensing systems. Promoted by integration with a photothermal μDAD, the system combines PDA's photothermal responsiveness and thermosensitive gas production of ammonium bicarbonate for improved sensitivity of ALP detection, reaching the detection limit of 9.1 mU/L. The system has successfully achieved on-chip detection of ALP with superior anti-interference capability and recoveries ranging from 96.8 % to 104.7 %, alongside relative standard deviations below 8.0 %. Significance and novelty The μDAD design accommodated both the photothermal reaction of PDA NPs and thermosensitive gas production reaction, achieving the rapid sensing of visual distance signals. The μDAD-based Cu 2+ -catalyzed photothermal sensing system holds substantial potential for applications in biochemical analysis and clinical diagnostics, underscored by the versatile Cu 2+ regulation mechanism for a broad spectrum of biomarkers.
研究领域:
生物化学
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医学诊断
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分析化学
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PubMed
高影响因子
ACS Applied Materials & Interfaces
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2020
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IF 8.758
Haoge Cheng,Qiongxia Liu,Shengpeng Han,Shuai Zhang,Xiao Ouyang,Xun Wang,Zhilong Duan,Hao Wei,Xinyue Zhang,Ning Ma,Mianqi Xue
Photothermal conversion behavior has a vital application to disease therapy, water purification, or uncontacted heaters. The fabrication of high-performance photothermal conversion materials especially for near-infrared (NIR) light and microstructures has attracted a great deal of attention. Among numerous substances, MXene as a new type of 2D material with semi-metallic and unique electromagnetic properties presents a broader absorption of light and even a typical plasmonic absorption near the NIR-I area (808 nm), which has made it suitable for photothermal conversion. Here, we propose a facile approach for preparing a Ti3C2Tx/ionic liquid ink with a high photothermal conversion efficiency. The as-prepared ink has showed good wettability of various substrates as well as the high sensitivity of 808 nm NIR light irradiation and a wide range of thermal variation. After packing the ink into a gel pen refill, the flexible thermal chips could be easily obtained just by pen writing on the soft surface with the designed size, which also have become an optimal candidate for the thermal alarm system.
研究领域:
材料科学
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纳米技术
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光电技术
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传感器
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DOI
PubMed
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
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2020
·
IF 7.1
Mingyue Luo,Xin Xue,Honghong Rao,Hongqiang Wang,Xiuhui Liu,Xibin Zhou,Zhonghua Xue,Xiaoquan Lu
Traditional colorimetric sensors often suffer from the low color resolution and the not well-defined boundary between the yes and no answers, especially for distinguishing the similar color readouts with the naked eye. Herein, a simple strategy is communicated for greenly converting colorimetric sensor into a photothermal sensor, which is based on the simple color-to-thermal (temperature) signal readout conversion. The colorimetric system based on simply mixing commercially available chemicals of 3,3,5,5-tetramethylbenzidine (TMB) and silver ions (Ag + ), provides a straightforward blue color readout owing to the generation of oxidized TMB (TMBox). In the presence of the target alkaline phosphatase (ALP), ascorbic acid phosphate (AAP) in the system could be hydrolyzed into ascorbic acid (AA), subsequently reducing the blue colored TMBox into colorless TMB. The blue-to-colorless change-based colorimetric system also exhibits the highly sensitive near-infrared (NIR) laser-driven photothermal response, allowing the successful thermometer-detectable signal-based assay for point-of-care testing (POCT) of ALP levels just using a common thermometer. This study not only demonstrated a regulatory strategy to convert color-based signal readout into thermal (temperature)-based signal readout, but also established a facile method to design affordable thermometric sensors for POCT and instrument-free bioanalysis , especially in low-resource settings.
研究领域:
生物医学工程
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分析化学
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高影响因子
APPLIED PHYSICS LETTERS
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2022
·Vol. 121
·期 5
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IF 3.971
Zhang Wenjuan,Miao Yinping,Zhang Hongmin,Yao Jianquan
Streptomycin sulfate (STS) is a broad-spectrum antibiotic widely present in water as a source of pollution. STS produces ototoxicity and nephrotoxicity if ingested in excess. Here, we propose a photothermal sensor to detect contaminated water based on a Nb 2 CTx MXene integrated few-mode fiber coupler (FMFC) and the photothermal effect of STS. Nb 2 CTx MXene exhibits strong absorption ability for biomolecules, which can enhance the interaction between STS and light by depositing it on the surface of the FMFC, thereby improving the detection performance of the proposed sensor. Under irradiation of a 405 nm laser, the photon energy is absorbed by STS and converted into heat energy, changing the transmission characteristics of the few-mode fiber. The results show that the sensitivity reaches 210.66 nm/(mg/ml) in the linear range of 0.02–0.1 mg/ml, with a detection limit of 94.93 ng/ml. In practical applications, the photothermal effect is stimulated by natural light to improve the suitability of the device application. Furthermore, this photothermal sensor eliminates complicated sample processing, making it potentially applicable for real-time food safety, environmental pollutant detection, and disease diagnosis.
研究领域:
环境科学
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生物医学工程
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光学工程
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DOI
高影响因子
LWT-FOOD SCIENCE AND TECHNOLOGY
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2025
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IF 6.6
Shanglin Li,Ziyang He,Yonghong Meng,Baoxin Li,Mei Liu
Aflatoxin B1 contamination poses severe threats to food safety, vitally requiring reliable assays. Biosensors are effective but subject to unsatisfactory signal conversion efficiency owing to their usage of the monovalent probes with redundant materials and procedures. Herein, we developed a photothermal aptasensor, which combined multifunctional polyvalent DNA scaffolds with thermal imaging for the portable detection of aflatoxin B1. The aptasensor was conferred with favorable properties of specific recognition, surface modification and signal amplification by the polyvalent DNA scaffolds, thereby showed enhanced analytical performance with simplified procedures. Moreover, the detection potential of the aptasensor was further improved by introducing Cu x S nanoparticles to provide intuitive temperature output for portable devices analysis. Consequently, AFB1 could be quantified in a wide range of 1–500 ng/mL with the detection limit of 0.75 ng/mL, merely using common thermometer. For food samples, the spiked recoveries of the proposed method ranged from 93.5 % to 108.7 % with relative standard deviation from 2.9 % to 6.3 %. These results were in agreement with the high-performance liquid chromatography method, demonstrating the good accuracy of this method. Therefore, this method is expected to be extended as a universal detection strategy for food hazards analysis.
研究领域:
食品科学
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生物传感技术
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分析化学
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DOI
高影响因子
FOOD CHEMISTRY
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2024
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IF 8.5
Zhen Zhang,Zhenkai Hao,Ruohan Yang,Ruiping Shan,Xiangyang Li,Hongyan Zhang
Given the serious harm caused by dietary intake of diethylstilbestrol (DES), it is urgent to explore rapid and sensitive DES sensing methods. In this work, a photothermal DES immunochromatography sensor based on covalent organic framework (COF) was constructed. The performance of COF in the field of photothermal sensing was systematically investigated for the first time. A donor–acceptor type of COF with a photothermal conversion rate of 51.17 % was synthesized. The logarithm of the DES concentrations-temperature change value standard curve was plotted. The intensity of the photothermal sensing signal was inversely proportional to the sample concentration. The detection limit of the proposed photothermal method (0.24 μg·L −1 ) was 10 times higher than that of visual detection (3 μg·L −1 ). This work not only constructed a novel detection method for DES sensing, but also provided a feasible demonstration for the application of COF in photothermal sensing and expanded the application of their photothermal properties.
研究领域:
分析化学
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材料科学
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传感器与执行器
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DOI
PubMed
高影响因子
ANALYTICAL CHEMISTRY
·
2023
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IF 7.4
Shao-Hua Wen,Hengyuan Zhang,Sha Yu,Junping Ma,Jun-Jie Zhu,Yuanzhen Zhou
Credible and on-site detection of organophosphorus pesticides (OPs) in complex matrixes is significant for food security and environmental monitoring. Herein, a novel COF/methylene blue@MnO2 (COF/MB@MnO2) composite featured abundant signal loading, a specific recognition unit, and robust oxidase-like activity was successfully prepared through facile assembly processes. The multifunctional composite acted as a homogeneous electrochemical and photothermal dual-mode sensing platform for OPs detection through stimuli-responsive regulation. Without the presence of OPs, the surface MnO2 coating could recognize thiocholine (TCh), originating from acetylcholinesterase (AChE)-catalyzed hydrolysis of acetylthiocholine (ATCh), and exhibited a distinctly amplified diffusion current due to the release of plentiful MB; while the residual MnO2 nanosheets could only catalyze less TMB into oxidized TMB (oxTMB) with a typical near-infrared (NIR) absorption, enabling NIR-driven photothermal assay with a low temperature using a portable thermometer. Based on the inhibitory effect of OPs on AChE activity and OP-regulated generation of TCh, chlorpyrifos as a model target can be accurately detected with a low limit of detection of 0.0632 and 0.108 ng/mL by complementary electrochemical and photothermal measurements, respectively. The present dual-mode sensor was demonstrated to be excellent for application to the reliable detection of OPs in complex environmental and food samples. This work can not only provide a complementary dual-mode method for convenient and on-site detection of OPs in different scenarios but also expand the application scope of the COF-based multifunctional composite in multimodal sensors.
研究领域:
食品安全检测
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环境监测
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生物传感技术
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产品关联
DOI
PubMed
高影响因子
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
·
2025
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IF 4.6
Haowei Huang,Tai Wen,Junyao Li,Laidi Xu,Wenrong Cai,Yong Kong
As the chiral source, L-histidine (L-His) is used for the decoration of copper sulfide nanoparticles (CuS NPs), which is further utilized to fabricate a colorimetric and photothermal dual-mode chiral sensor for the optical resolution of aspartic acid (Asp) isomers. Since the optical activity of L-His is consistent with L-Asp, the CuS-L-His shows higher affinity for L-Asp than D-Asp, and thus more 3,3′,5,5′-tetramethylbenzidine (TMB) is captured by CuS-L-His/L-Asp through electrostatic attractions compared with CuS-L-His/D-Asp. Owing to the superior peroxidase-like activity of CuS NPs, the captured TMB can be catalyzed to blue oxidized TMB (oxTMB) in the presence of H 2 O 2 , and thus the optical resolution of the Asp isomers can be realized by the colorimetric mode. In addition, the nanosized CuS has outstanding photothermal conversion ability, and the combination with Asp isomers may lead to the decrease in temperature. Since the decrease in the temperature of CuS-L-His/L-Asp is more pronounced than that of CuS-L-His/D-Asp, the Asp isomers can also be optically resolved by the photothermal mode. The proposed dual-mode chiral sensor is more attractive than conventional single-mode chiral sensors, since it can provide higher accuracy for the optical resolution.
研究领域:
分析化学
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生物化学
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DOI
PubMed
高影响因子
MICROCHEMICAL JOURNAL
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2025
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IF 5.1
Miao Ma,Qing Wang,Qianqian Su,Weizhe Liu,Hui Xia,Caixia Zhou,Mengtian Li,Fang Yang,Fujian Xu
Blood uric acid (UA) levels are closely associated with various diseases. This study presents a novel UA photothermal detection system. UA reacts with uricase to generate hydrogen peroxide, which then oxidizes 3,3′,5,5′-tetramethylbenzidine (TMB) into oxidized TMB (oxTMB) in the presence of copper ions as the catalyst. Crucially, instead of expensive laser, Light Emitting Diode (LED) was applied to offer the irradiation on oxTMB, inducing a temperature increase. The increment of temperature measured by a handheld household thermometer exhibits a linear correlation with the concentration of UA in the samples. This method demonstrates enhanced detection sensitivity and excellent anti-interference capabilities. It has been successfully applied to precisely determine UA levels in volunteer blood samples. The sensing platform achieves portable UA detection in human blood within 3 min, featuring a linear response range of 50–400 μM, a detection limit (LOD) of 14.4 μM. This work establishes a novel miniaturized LED-based photothermal (LED-PT) uric acid detection device, holding significant potential for rapid, portable UA monitoring in healthcare and clinical diagnostics.
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高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
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2025
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IF 7.7
Xin Lei Xu,Yi Wei Zhou,Yue Yu,Shi Gang Liu,Lei Han
It is imperative to design a highly selective, sensitive, and portable approach for the reliable determination and monitoring of mercury ion (Hg 2+ ) given its severe toxicity to both ecosystems and public health. Herein, we develop a colorimetric and photothermal-derived multimodal sensor for point-of-care testing of Hg 2+ based on the Hg 2+ -sensitized oxidase-mimetic activity of CoSe 2 nanorods. The synthesized CoSe 2 nanorods show negligible oxidase-mimetic activity. It can bind with CoSe 2 nanorods via an Hg-Se bond when Hg 2+ is present. The generation of HgSe on the surface of CoSe 2 nanorods booms the oxidase-like activity of CoSe 2 nanorods to catalyze the oxidation of 3,3′,5,5′-tetramethylbenzidine (TMB) into oxidative TMB (oxTMB), generating a hyperchromic effect and light-driven thermal effect. Consequently, the color and absorbance of the solution changed, realizing the colorimetric and visual sensing of Hg 2+ . The limit of detection (LOD) is 7.3 nM for colorimetry. Meanwhile, a photothermal sensor was also developed under the drive of a laser with a LOD of 12.3 nM. The developed sensor also shows high selectivity toward Hg 2+ because of the strong affinity between the CoSe 2 and Hg 2+ . Furthermore, the latent application of this sensor is confirmed by determining Hg 2+ in real water samples. More significantly, multimodal detection not only enhances accurate detection results through mutual authentication of different signals but also satisfies the demands of diversified detection by consolidating the advantages of photothermal and colorimetric approaches.
研究领域:
分析化学
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环境监测
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纳米生物技术
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传感技术
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重金属检测
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）