Surfaces and Interfaces
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2025
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IF 6.3
Guohua Fan,Jinke Song,Yanan Tang,Xiaoting Song,Yao Liu
Dielectric modulation is arresting in electrical and electronic fields, and high- k is particularly important in applications like energy conversion and pulse power supply. Herein, an innovative strategy that different from conventional practices was adopted to boost the dielectric constant of PVDF-based dielectrics via involving an epsilon-negative layer in the laminates. The epsilon-negative layer was obtained based on the plasmonic state in percolating graphene networks. After stacking with the epsilon-positive layer containing core-shell BaTiO 3 @SiO 2 fillers, dielectric constant of the laminated composites was improved, and it increased constantly with the increasing thickness ratio of the epsilon-negative layer. It's ascertained the boost in dielectric constant was related to the multiple interfacial polarizations inside the layered composites, and the dielectric loss was suppressed by the low loss epsilon-positive layer. Therefore, synergism of epsilon-negative and positive layers in the enhancement of dielectric performance was elucidated, which developed a new avenue to obtain high- k dielectrics by the means of laminated composites.
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FOOD HYDROCOLLOIDS
·
2024
·
IF 11
Ruimin Ran,Xiaoxia Zhang,Xin Guo,Changkai Yang,Fang Zhang,Guoying Li
Conventional Pickering emulsions can kill microorganisms by slow release of active substances to prevent foodborne contamination; however, their low bactericidal efficiency due to the absence of bacterial inducibility is a problem that needs to be addressed. Inspired by the fact that the growth of bacteria depends on the consumption of proteins and polysaccharides by microbial enzymes, the present study prepared a novel Pickering emulsion capable of intelligent sensing and targeted release using chitosan (CS)-soy protein isolate (SPI) colloidal particles as stabilizers and plant essential oils as active substances. The Pickering emulsion demonstrated optimal performance in achieving these goals when prepared with a CS:SPI ratio of 1:4, an oil fraction of 40%, at a homogeneous speed of 25 000 rpm, and utilizing cinnamon oil as the plant essential oil. This was evidenced by the emulsion having the smallest droplet size and the greatest stability, which can increase the chances of coming into contact with microorganisms and avoid premature demulsification. Antibacterial experiments demonstrated that the emulsion could control the bacteria-mediated release of essential oils, realizing intelligent sterilization. Experiments on banana preservation showed that the released essential oils effectively delayed banana spoilage. These findings contribute to the development of intelligent food preservation systems.
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Journal of Materials Chemistry A
·
2024
·Vol. 12
·期 44
·30351-30361
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IF 10.7
Jiawei Huang,Weifeng Chen,Qiyan Kuang,Ting Xiao,Lihua Jiang,Xinyu Tan,Yizhu Lei
Passive radiative cooling technologies are crucial for energy conservation and emission reduction, yet their development encounters substantial challenges. In this study, we fabricate an advanced passive radiative cooling emitter by coating BaSO4@SiP/H-SiO2@PAN on an aluminum substrate. This design highlights a remarkable average temperature reduction of 20.1 °C and an ultrahigh cooling power of 121.0 W m−2 under strong solar radiation, showcasing exceptional sub-ambient cooling performance. Through meticulous design optimization, the emitter exhibits an efficient reflectance of 95.5% in the visible spectrum and a superior mid-infrared emissivity of 97.9%. Additionally, the emitter's superhydrophobic surface, characterized by a water contact angle (WCA) of 155°, ensures excellent self-cleaning properties. Furthermore, its performance remains stable even after prolonged UV exposure, demonstrating its outstanding durability. This innovative emitter provides a critical solution for energy-efficient cooling in buildings and outdoor equipment, significantly contributing to reduced energy consumption and carbon emissions.
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JOURNAL OF THE INDIAN CHEMICAL SOCIETY
·
2024
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IF 3.2
Chengcheng Li,Hao Zheng,Xingguo Zhang,Zhihua Pu,Dachao Li
This paper reports an adaptive degradable flexible power supply. The power supply is produced using a batch-printed, easy-to-operate screen-printing technique that converts the chemical energy of glucose and oxygen into electricity. The power supply has stable current and voltage outputs in vitro, delivering a consistent open circuit potential of 0.2 V in vitro. Due to the flexibility and degradability of the power supply, the power supply can be implanted anywhere in the tissue. This breaks through the limitation of location, for example, mechanical energy harvesters can only be implanted in places with frequent movements. And due to the degradable nature of the power supply, surgical resection is avoided. Glucose and oxygen are ubiquitous and abundant in interstitial fluid. The in vivo experimental results prove that the power supply can power the light-emitting diode and have a stable current output. Therefore, the power supply is expected to provide internal power for implantable devices, avoiding transmission from external sources such as radio frequency.
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ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Peiqian Zhou,Tuozhou Liu,Wenbin Liu,Lingshun Sun,Haifei Kang,Kun Liu,Peiyuan Luo,Youfa Wang,Ling Luo,Honglian Dai
The periosteum, rich in neurovascular networks, bone progenitor cells, and stem cells, is vital for bone repair. Current artificial periosteal materials face challenges in mechanical strength, bacterial infection, and promoting osteogenic differentiation and angiogenesis. To address these issues, we adjusted the electrospinning ratio of poly-ε-caprolactone and chitosan and incorporated Zn doping whitlockite with polydopamine coating into a nanofiber membrane. After a series of characterizations, optimal results were achieved with a poly-ε-caprolactone: chitosan ratio of 8:1 and 5% nanoparticle content. In vitro cell experiments and in vivo calvarial defect models, the sustained release of Mg2+ and Ca2+ promoted vascularization and new bone formation, respectively, while the release of Zn2+ was conducive to antibacterial and cooperated with Mg2+ to promote neurovascularization. Consequently, this antibacterial bionic periosteum with an angiogenesis-neurogenesis coupling effect demonstrates a promising potential for bone repair applications.
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PubMed
高影响因子
TALANTA
·
2024
·
IF 5.6
Tong Zhang,Xiaojing Liang,Tiantian Si,Xiaofeng Lu,Shuai Wang
In response to the challenges associated with the chromatographic separation of polar compounds, this study aims to devise a solution by introducing a novel stationary phase. Hydrogels, characterized by a three-dimensional network structure, have aroused wide attention owing to its functional designability, multiple interaction sites and good adhesion, etc. In this work, an adhesive hydrogel functionalized silica stationary phase (Sil@PVA/TA) was synthesized using physical coating technique. Due to the co-existence of hydroxyl and benzene ring in the hydrogel structure, the obtained composites materials exhibited excellent separation performance for various of compounds and excellent column efficiency up to 71385.6 plates/m for thymidine. Furthermore, the hydrogel functionalized silica demonstrated superior selectivity to bare silica, diol-column and NH 2 -column for the separation of various of polar molecules, including, nucleosides/bases, alkaloids, organic acids, antibiotics and amino acids. Notably, for alkaloids, which frequently encounter peak tailing issues, Sil@PVA/TA demonstrated superior peak shape compared with C18 column. In short, this study successfully synthesized a hydrogel functionalized silica stationary phase, offering a novel method for the separation and analysis of polar compounds.
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DALTON TRANSACTIONS
·
2024
·
IF 3.5
Shuang Shen,Shuli Nong,Xianpeng Zhang,Jiaqi Song,Caiting Meng,Xinling Liu,Liang Shao,Guanying Li,Li Xu
Poor cellular permeability greatly hampers the utilization of anionic Ir(III) complexes, though efficiently emissive and remarkably stable, in cell-based diagnosis. To overcome this barrier, we present the development of an alkaline phosphatase (ALP)-responsive, anionic, and aggregation-induced emission (AIE)-active Ir(III) complex (Ir1) for specific recognition of osteosarcoma cells. Containing phosphate moieties, Ir1 exhibits a net −1 charge, enabling charge repulsion from the cell membrane and resulting in low cellular uptake and good biocompatibility in normal osteoblast cells. Upon ALP-mediated hydrolysis of phosphate groups, the resulting dephosphorylated product, Ir2, demonstrates a positive charge and increased lipophilicity, promoting cellular uptake and activating its AIE properties for specific recognition of osteosarcoma cells that express elevated levels of ALP. This study elucidates the role of ALP as an ideal trigger for enhancing the cellular permeability of phosphate ester-containing Ir(III) complexes, thus expanding the potential of anionic Ir(III) complexes for biomedical applications.
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ACS Nano
·
2024
·
IF 15.8
Qiang Luo,Minshuo Chen,Dongdong Yu,Tiance Zhang,Jiajun Zhao,Lei Zhang,Xuefeng Han,Maolin Zhou,Yongping Hou,Yongmei Zheng
Atmospheric water harvesting is a practical strategy that is achieved by removing materials from air moisture to relieve global water scarcity. Here we design a water-harvester (i.e., MOF-303/thiolated polymer composite (MTC)) by using a metal–organic framework (MOF-303) and thiolated chitosan (TC) skeleton. Intermolecular hydrogen bonding between TC and MOF-303 facilitates porous structures with enlarged air–polymer interfaces for long cycling life and high capacity at low relative humidity. Benefiting from synergetic effects on porosity and anchorage for accelerating the uptake-release of moisture, MTC exhibits a rapid water uptake capacity of 0.135 g/g in 60 min under 12.5 RH% and ultrafast water desorption kinetics of 0.003 g/g/min at 8.5 RH%, which is superior to the as-reported MOF-303 based adsorbents. At low heat (∼40 °C), the water desorption and collection rate, respectively, are 0.0195 and 0.0168 g/g/min within 210 min, showing ultrahigh harvesting efficiency. These results highlight the enormous potential as promising materials for solving the world’s water scarcity crisis. This study offers an insight into the design of AWH materials, which can be extended into applications in some realms, e.g., freshwater development for industry in arid areas, water engineering-related devices and systems, etc.
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SENSORS AND ACTUATORS B-CHEMICAL
·
2025
·
IF 7.7
Guangxu Fang,Kai Wen,Qixuan Zhao,Yingxuan Chen,Yanbo Wang,Haobo Han,Quanshun Li
Postoperative tissue analysis is essential for the evaluation of surgical outcome in the tumor therapy. The identification of tumor biomarkers represents a supplementary approach to histochemical observation, facilitating the diagnosis of cancers at molecular level. Herein, a biosensor was developed by integrating an ATP-responsive aptazyme and its substrate on the surface of streptavidin magnetic beads to achieve the simultaneous detection of ATP and apurinic/apyrimidinic endonuclease 1 (APE1) within cancer cells. This strategy enabled the biosensor to respond to excessive ATP in cancer cells, thereby generating the primer. Meanwhile, the biosensor contained a double-stranded DNA with apurinic/apyrimidinic site, which allowed it to respond to APE1 and produce a padlock. The released primer and padlock triggered the rolling cycle amplification to yield an amplified fluorescent or colorimetric signal. The biosensor functioned as the “AND”-logic gate, effectively distinguishing cancer and non-cancerous cells. Moreover, the biosensor exhibited high specificity and sensitivity in discriminating the tumor and non-tumor tissues isolated from the patients bearing non-small cell lung cancer. Taken together, the biosensor showed the potential in clinical molecular diagnosis, serving as a promising supplementary approach for the postoperative tissue analysis.
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IEEE SENSORS JOURNAL
·
2024
·
IF 4.3
Chaoli Tang,Dachao Fu,Rujing Wang,Xiaoyu Zhang,Liman Wei,Mingjun Li,Chengpan Li,Qiao Cao,Xiangyu Chen
On-site monitoring of phosphate concentration has attracted much attention recently for soil fertility management in agricultural products. This study proposes a portable and easy-operate electrochemical microfluidic system with integrated reagent reactions for on-site continuous monitoring of soil phosphate. Polydimethylsiloxane (PDMS) chips with channel layers and PDMS substrates embedded with screen-printed electrodes (SPEs) were prepared using 3-D printed molds. Reagents and samples were pumped into the chips at optimal flow rates of $100~\mu \text{L}$ min $^{-{1}}$ to automatically react, which were used for cyclic voltammetry (CV) electrochemical detection of analytes via carbon black nanoparticles (CBNPs) modified electrodes. After optimizing experimental conditions, including pH value, liquid flow rates, and voltammetry scan rates, the system achieved a linear phosphate concentration range of 5– $100~\mu \text{M}$ with a detection limit (LOD) of $4.2~\mu \text{M}$ ; moreover, the system exhibited excellent resistance to interference long lifespan and excellent phosphate recovery rate from 91.1% to 110.48%. This system has been successfully applied to continuous field phosphate determination in real soil environments. Results elucidated that the system has good practicality and great potential for fine nutrient management in the field.
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ADVANCED FUNCTIONAL MATERIALS
·
2024
·Vol. 34
·期 37
·2402217
·
IF 18.5
Ren Yan,Zhaoqing Sun,Wanyu Du,Nian Liu,Qizeng Sun,Peng Li,Fei Liang,Yangzhi Zhu,Wei Huang,Hai-Dong Yu
Chronic wounds are inherently vulnerable to external mechanical contact owing to their impaired physiological states. Accidental touching may lead to secondary damage to delicate wound tissues, including deterioration of tissue and inflammation, thereby prolonging the healing process. In addition, patients encounter nociceptive sensations, indicative of physical discomfort and potential distress. However, the traditional dressings for chronic wounds fail to convey adequate perceptual information to prevent mechanical trauma. An electrostatic-induction-enabled anti-touching hydrogel dressing (EAHD) is proposed, which promotes wound healing and reduces touching-induced injuries. The EAHD combines a proximity sensor and a pro-healing hydrogel. The proximity sensor can detect approaching objects, enabling remote perception. More importantly, EAHD and a wireless alarm system are integrated to warn against the detected potential hazards such as unintentional touching. Meanwhile, the EAHD significantly accelerates wound healing in preclinical diabetic mice, ≈38% faster than that of the control group. This study proposes a novel strategy for multifunctional wound dressing that promotes wound healing and prevents accidental touching-induced secondary damage to the wound.
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DESALINATION
·
2024
·
IF 8.3
Lei Yao,Xiaojian Xu,Yang Gui,Yong Li,Zhe Chen,Jue Han,Yuan Liao
Forward osmosis (FO) has been rapidly developed and employed in the industrial and environmental wastewater treatment, whose performance is affected profoundly by membrane fouling. Electrochemical impedance spectroscopy (EIS), as a nondestructive and low-cost evaluation technique, has been increasingly used for the characterization of membrane structures and membrane fouling. However, monitoring ion fouling of FO membranes is difficult with EIS due to the weak signal. In this work, the ion-fouling of various FO membranes was successfully characterized by EIS and the inductance variation was firstly utilized to interpret the degree of FO membrane fouling. Multi-walled carbon nanotubes (MWCNTs) and polydopamine (PDA) were modified onto the thin film nanofibrous composite membrane (#FO-0) as anti-fouling modification (#FO-MWCNTs and #FO-PDA), respectively. The structural measurements of #FO-0, #FO-MWCNTs, and #FO-PDA were achieved by a two-electrode EIS system. Then the ion fouling of FO membranes was monitored by a four-electrode EIS system. Through the equivalent circuit fitting, the correlation between the inductance variation and the membrane fouling was established. The FO experiments further validated the effectiveness of the proposed EIS method. The results indicate that inductance as a detection index is expected to be a convenient tool for studying the ion-fouling phenomenon in the FO process.
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