JOURNAL OF CHROMATOGRAPHY A
·
2016
·
IF 3.926
Xiaqing Wu,Xiaoyan Wang,Wenhui Lu,Xinran Wang,Jinhua Li,Huiyan You,Hua Xiong,Lingxin Chen
Versatile molecularly imprinted polymers (MIPs) have been widely applied to various sample matrices, however, molecular recognition in aqueous media is still difficult. Stimuli-responsive MIPs have received increasing attentions due to their unique feature that the molecular recognition is regulated by specific external stimuli. Herein, water-compatible temperature and magnetic dual-responsive MIPs (WC-TMMIPs) with hydrophilic brushes were prepared via reversible addition-fragmentation chain transfer precipitation polymerization for reversible and selective recognition and extraction of bisphenol A (BPA). Transmission electron microscopy (TEM), Fourier transform infrared spectrometer (FT-IR) and vibrating sample magnetometry (VSM) as characterization methods were used to examine the successful synthesis of polymers, and the resultant WC-TMMIPs showed excellent thermosensitivity and simple rapid magnetic separation. Controlled adsorption and release of BPA by temperature regulation were investigated systematically, and the maximum adsorption and removal efficiency toward BPA in aqueous solutions were attained at 35 °C and 45 °C, respectively, as well as a good recoverability was exhibited with the precision less than 5% through five adsorption–desorption cycles. Phenolic structural analogs were tested and good recognition specificity for BPA was displayed. Accordingly, the WC-TMMIPs were employed as adsorbents for magnetic solid-phase extraction (MSPE) and packed SPE of BPA from seawater samples. Using the two modes followed by HPLC-UV determination, excellent linearity was attained in the range of 0.1–14.5 μM and 1.3–125 nM, with low detection limits of 0.02 μM and 0.18 nM, respectively. Satisfactory recoveries for spiked seawater samples were achieved ranging from 86.3–103.5% and 96.2–104.3% with RSD within 2.12–4.33%. The intelligent WC-TMMIPs combining water-compatibility, molecular recognition, magnetic separation, and temperature regulation proved potentially applicable for selective identification, controlled adsorption/release and high-efficiency enrichment/removal of trace targets in complicated aqueous media.
研究领域:
分析化学
·
材料科学
·
环境科学
✓ 已验证
DOI
高影响因子
Journal of Energy Storage
·
2024
·
IF 8.9
Weijie Mao,Biao Ma,Jiayun Xu
High temperatures leading to thaw settlement deformation of soil are the primary cause of damage to road structures in permafrost regions. In this study, phase change material (PCM) is prepared by adsorbing tetradecane, and epoxy resin composite phase change material (ERPCM) is prepared by combining epoxy resin with PCM. ERPCM is applied to geotextile to create phase change geotextile (PCG) with energy storage and impermeability characteristics. The impact of epoxy resin content and freeze–thaw cycles on ERPCM performance is analyzed using Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), differential scanning calorimetry (DSC), and dynamic mechanical analysis (DMA). The results show that epoxy resin enhances the thermal stability and freeze–thaw resistance of ERPCM. When the mass ratio of epoxy resin to PCM is 0.8:1, ERPCM exhibits its highest enthalpy values both before and after freeze–thaw cycles, reaching 81.5 J/g and 72.6 J/g, respectively. The energy storage modulus of ERPCM decreases with increasing epoxy resin content. Temperature regulation experiments demonstrate that PCG under different structures can adjust the sample temperature within the range of 6 to 16 °C. Higher quantities of ERPCM could store more energy in the PCG. The temperature regulation effect is more pronounced when PCG is placed at greater depths. Increasing the number of PCGs improves the overall temperature regulation effect but reduces the individual temperature regulation effect of each PCG. This study has theoretical significance and practical value for promoting the further application of PCM in permafrost subgrades .
研究领域:
土木工程
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材料科学
✓ 已验证
产品关联
DOI
高影响因子
Green Energy & Environment
·
2023
·
IF 13.3
Baiyi Chen,Huimeng Wang,Jiadai Xu,Liting Pan,Yuan Jing,Xu Hou
Membrane separation technology with the ability to regulate gas/liquid transport and separation is critical for environmental fields, such as sewerage treatment, multiphase separation, and desalination. Although numerous membranes can dynamically control liquid-phase fluids transport via external stimuli, the transport and separation of gas-phase fluids remains a challenge. Here, we show a temperature-regulation liquid gating membrane that allows in-situ dynamically controllable gas/liquid transfer and multiphase separation by integrating a thermo-wettability responsive porous membrane with functional gating liquid. Experiments and theoretical analysis have demonstrated the temperature-regulation mechanism of this liquid gating system, which is based on thermo-responsive changes of porous membrane surface polarity, leading to changes in affinity between the porous membrane and the gating liquid. In addition, the sandwich configuration with dense Au-coated surfaces and heterogeneous internal components by a bistable interface design enables the liquid gating system to enhance response sensitivity and maintain working stability. This temperature-regulation gas/liquid transfer strategy expands the application range of liquid gating membranes, which are promising in environmental governance, water treatment and multiphase separation.
研究领域:
环境工程
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材料科学
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化学工程
·
膜技术
✓ 已验证
产品关联
DOI
高影响因子
FOOD CHEMISTRY
·
2024
·
IF 8.5
Chao Zhang,Chunhe Gu,Mengrui Wang,Junxia Chen,Haode Chang,Ziqing Chang,Junping Zhou,Mingzhe Yue,Wenjing Zhang,Quanmiao Zhang,Zhen Feng
Noni fruit has an unpleasant flavour but is highly bioactive. Therefore, it is necessary to clarify the effect of temperature regulation on quality of fermented noni fruit. In the present study, the formation of flavours, amino acid profiles, and iridoid glycosides during noni fruit fermentation at different temperatures were investigated. We initially found that different temperatures affected core microbial communities. The general evolutionary trends of Acetobacter and Gluconobacter were influenced by different temperatures. Furthermore, high temperature helped maintain low octanoic and hexanoic acids. Subsequently, we found that high temperature improved total amino acids and iridoid glycosides. The correlation network analysis revealed that bacterial communities impacted the quality (volatile flavours, amino acid profiles, and iridoid glycosides) of fermented noni fruit. Overall, altering the temperature induced variations in microbial communities and quality during the noni fruit fermentation process. These results are instrumental in the pursuit of quality control in natural fermentation processes.
研究领域:
食品科学
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微生物学
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生物化学
✓ 已验证
DOI
PubMed
高影响因子
Plasmonics
·
2015
·Vol. 11
·期 3
·771-779
·
IF 2.238
Zhang Pengfei,Liu Le,He Yonghong,Ji Yanhong,Guo Jun,Ma Hui
We describe a temperature-regulated surface plasmon resonance (SPR) imaging biosensor in this article. The sample temperature can be regulated for specific requirements of the bioaffinity sensing, and stabilized to suppress the measurement noise caused by temperature fluctuations. The water thermo optic coefficient is measured to test the temperature regulation performance. The protein interaction is monitored to demonstrate the feasibility of this system for real-time biomolecular interaction analysis. This temperature-regulated SPR imaging biosensor can be readily implemented by adding the common water path and peristaltic pump to the conventional SPR imaging system, which may provide an economical and convenient scheme to improve the analysis accuracy and quality of bioaffinity sensing using SPR sensing platform.
研究领域:
生物传感器技术
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分子生物学
·
光学成像
✓ 已验证
产品关联
DOI
高影响因子
APPLIED THERMAL ENGINEERING
·
2025
·
IF 6.9
Xue-Ying Hao,Yan Wang,Jian-Shu Liu,Xiao-Bin Li,Hong-Na Zhang,Feng-Chen Li
Effective boiling control is crucial for the thermal management in high-power electronics. Conventional passive methods lack adaptability while active electric field approaches often require high voltages or engineered surfaces. This study presents a low-voltage (<5 V) electrostatic strategy based on the electro-de-wetting (EDW) effect, using a low-concentration cationic surfactant solution and a common conductive surface. Without specialized substrates, by leveraging electric-field-driven surfactant migration and adsorption, the dynamic regulation of nucleation site density and surface temperature was achieved, reducing the heat flux required for the onset of nucleate boiling by approximately 50 % via enhanced surface hydrophobicity. The discovery of unique bubble clustering behavior multiplies nucleation at a single site by up to 5 times, while identification of a “main effective region” enhances the heat transfer coefficient by 12.0 %. The EDW effect enables reversible temporal boiling modulation, reducing copper surface temperature by 4.6 °C. This work establishes a low-voltage approach for intelligent boiling regulation, offering new paradigm for real-time, adaptive heat transfer enhancement
研究领域:
传热学
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界面科学
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电润湿
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热管理
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微尺度流体力学
✓ 已验证
产品关联
DOI
高影响因子
Polymers
·
2025
·Vol. 17
·期 14
·1933
·
IF 4.9
Ziqiang Wang,Jingjing Xiao,Tengkun Yao,Menghao Wang
Research on phase change materials (PCMs) is booming in the context of global energy structure transitions and the challenge of dealing with temperature fluctuations in engineering materials. Polyurethane solid–solid phase change materials (PUSSPCMs) show great potential for thermal energy storage and temperature regulation because of their designable molecular structure, no risk of leakage, and high bulk stability. In this paper, the recent research progress on PUSSPCMs is systematically reviewed. Starting from the material system, the core preparation process of the PUSSPCMs was elucidated. At the performance improvement level, related performance studies on PUSSPCMs are systematically summarized, focusing on the introduction of dynamic covalent bonds and a nanofiller composite strategy to enhance the thermophysical properties of the materials. At the application level, innovative studies and thermomodulation advantages of PUSSPCMs in different fields are summarized. Finally, for green development, multifunctionalization, and bottlenecks in the scale-up preparation of PUSSPCMs, future research directions for balancing the performance requirements, conducting multi-scale simulations, and exploring green materials are proposed to provide theoretical references for the development and application of high-performance PUSSPCMs.
研究领域:
材料科学
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储能
·
高分子科学
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热管理
·
化学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
EUROPEAN POLYMER JOURNAL
·
2021
·
IF 4.598
Bingxin Liu,Jianzhi Liu,Yueqin Yu
In view of global warming and following fossil energy consumption caused by the using of heavy-loaded air conditioners, smart windows, which can intelligently regulate solar radiation, became a highly anticipated strategy to slow down the pressure. As most of the traditional hydrogel-based smart windows abruptly switch between transparent and opaque making a sudden change in temperature and light, we established a poly- N -isopropylacrylamide (PNIPAM) thermo-responsive hydrogel system with additional cross-linking of chitosan and Al 3+ , which exhibited a smooth thermo-response during heating and a novel recovery hysteresis during cooling. By enabling additional gentle transition in translucency, we are able to retain a comfortable indoor temperature/lightness balance during an increase in outdoor temperature, in avoidance of sudden indoor darkness at elevated temperature. By enabling additional control in the thermo-response hysteresis, this methodology provides a solution to continuously shield the dazzling afternoon sunshine until a comfortable outdoor temperature is reached. And the response degree and response temperature can be adjusted by the contents of chitosan and Al 3+ , respectively, so that the material can be customized personally. Moreover, we discovered that the hydrogel-based smart window system constructed by this methodology bears notably enhanced strength, toughness and conductivity, making it a comprehensively promising candidate for customizable smart windows.
研究领域:
材料科学
·
能源效率
·
智能材料
·
环境工程
✓ 已验证
产品关联
DOI
高影响因子
EUROPEAN POLYMER JOURNAL
·
2019
·
IF 3.621
Yingying Li,Runan Gao,Jian Li
Energy saving materials are economically and environmentally beneficial as they effectively reduce energy consumption and greenhouse gas emissions. In this study, energy saving wood composite was prepared by injecting a methyl methacrylate dispersion containing a mixture of VO 2 (M)@SiO 2 core-shell nanocomposites and thermochromic microcapsules into wood templates. APTS was added to stabilize the suspension. The good compatibility between the injected substances and the wood template benefited from the PMMA and APTS that filled the cell lumen and bonded the substances, leading to energy saving wood composite with excellent dimensional stability, optical properties, and mechanical performance. More importantly, the energy saving wood composite exhibited outstanding temperature regulatory ability by shielding needless infrared radiation, resulting in thermal comfort. The unique properties of the energy saving wood composite could potentially be applied in building, furniture, thermal insulation, energy conversion, energy storage, and conservation.
研究领域:
材料科学
·
能源工程
✓ 已验证
产品关联
DOI
高影响因子
Advances in Condensed Matter Physics
·
2018
·Vol. 2018
·期 1
·5654010
·
IF 0.959
ChenGuang Zhang,Ching-Jung Chen,Kalpana Settu,Jen-Tsai Liu
Surface plasmon resonance (SPR) is a real-time, label-free, and high-sensitive detection technology. SPR has been widely used in many applications such as biomolecular interaction analysis, environmental monitoring, and medical diagnostics. However, conventional SPR sensor systems usually require expensive equipment and complicated optics. In this paper, we have demonstrated a rapid prototyping of angle-scanning SPR for bioanalytical investigation. Rapid prototyping was attained by utilizing the FDM (fused deposition modeling) based 3D (three-dimensional) printing technology. Two rotating platforms were employed to drive the laser source and photodiode, respectively. A temperature regulation unit was incorporated to maintain the system temperature in order to reduce the temperature effect. The proposed SPR rapid prototyping yielded a refractive index resolution of 6.4×10 −6 RIU (refractive index unit), and the biotin-avidin system validated the kinetics parameters measurement capability. The obtained results indicated that the FDM 3D printing has great potential for developing rapid-prototyping SPR system.
研究领域:
生物技术
·
光学
·
分析化学
·
材料科学
·
生物医学工程
✓ 已验证
DOI
高影响因子
Science Advances
·
2021
·Vol. 7
·期 3
·
IF 14.143
Lixue Tang,Jin Shang,Xingyu Jiang
Electronic tattoos have great potential in health and movement sensing applications on the skin. However, existing electronic tattoos cannot be conformal, sticky, and multilayered at the same time. Here, we have achieved multilayered integration of the electronic tattoo that is highly stretchable (800%), conformal, and sticky. This electronic tattoo can enable the crease amplification effect, which can amplify the output signal of integrated strain sensors by three times. The tattoo can be transferred to different surfaces and form a firm attachment, where no solvent or heat is needed. The tattoo fabrication is straightforward and scalable; a layer-by-layer strategy and two materials (metal-polymer conductors and the elastomeric block copolymer) are used to fabricate the circuit module with desirable numbers of layers within the tattoo. A three-layered tattoo integrating 1 heater and 15 strain sensors is developed for temperature adjustment, movement monitoring, and remote control of robots.
研究领域:
柔性电子学
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可穿戴传感器
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生物医学工程
·
柔性机器人
·
人机交互
✓ 已验证
DOI
高影响因子
ADVANCED MATERIALS
·
2025
·
IF 26.8
Jinru Liu,Xiuyan Yan,Wei Wu,Bolin Ji,Yi Zhong,Linping Zhang,Bijia Wang,Xueling Feng,Hong Xu,Zhiping Mao
Passive radiative cooling offers zero-energy heat dissipation, yet static photonic structures fail in multi-scenario applications due to distinct or even incompatible requirements of infrared emission spectra across different thermal environments. Herein, a self-switching dynamic infrared radiative cooler (DIRC) is proposed that achieves triple-mode temperature regulation, including sub-ambient, near-ambient, and above-ambient cooling application. By leveraging temperature-triggered directional migration of broadband emission water molecules within thermoresponsive hydrogel, the spectral conversion between infrared selective emission for sub-ambient cooling and broadband emission for above-ambient cooling is realized. The resulting DIRC exhibits an average broadband emissivity of 94.1% across 2.5–25 µm and adaptively switches to a selective emissivity of 81.6% within the 8–13 µm, solar reflectivity maintains ≈90% during spectral conversion. The spectral transition is rapid and autonomous, with response times between 85.6 and 37.3 s across 35–45 °C temperature range. Notably, triple-mode thermal-regulated DIRC achieves a sub-ambient cooling of 9.5 °C for building thermal management, near-ambient cooling of 7.0 °C for enhanced personal comfort, and above-ambient cooling of 6.9 °C for photovoltaic panels. By overcoming the single-scenario and weather conditions limitations of static designs, the proposed DIRC represents a versatile strategy for triple-mode thermal regulation across a wide applications.
研究领域:
材料科学
·
热物理学
·
能源工程
·
建筑节能
·
光伏技术
·
纳米光子学
✓ 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）