JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2024
·Vol. 35
·期 16
·1-11
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IF 2.8
Yan Xunchang,Wang Sai,Nie Guangzhi,Gao Yuyu,Li Lin,Zhang Tong,Long Yun-Ze,Han Wenpeng
With the development of flexible wearable pressure sensors, capacitive pressure sensors using electric double-layer (EDL) effect have attracted much attention due to their advantages such as high sensitivity. In this study, an all-nanofiber ionic liquid EDL capacitive pressure sensor based on biodegradable polymer Polycaprolactone (PCL) is prepared by electrospinning technology. Based on the control of ionic liquid content in nanofibrous membranes, the performance of EDL capacitive pressure sensors has been investigated. The optimized device has a sensitivity of up to 26.4 kPa −1 in the range of below 10 kPa and 6.2 kPa −1 in the pressure range of 10 to 200 kPa. A detection limit as low as 8.53 Pa also gives it an advantage in detecting small pressures. Based on it, the prepared EDL capacitive pressure sensors have been successfully used to detect various physiological signals such as pulse, heartbeat, breathing, etc. In addition, the excellent mechanical properties and gas permeability also lay the foundation for its application in wearable electronics.
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Laser & Photonics Reviews
·
2024
·
IF 9.8
Jianhua Xiao,Yang Wang,Jiaao Wu,Liu Yuan,Huiling Tai,Yadong Jiang
Tremendous research efforts are developed to suppress the reverse dark current ( J d ) and enhance the responsivity of organic photodiodes (OPDs). The functional layers of traditional OPDs usually follow the principle of energy level alignment to make unobstructed photo-carriers transport under reverse bias, but this inevitably leads to a large forward J d . Herein, a universal strategy is proposed to manipulate the carrier dynamics and effectively suppress the forward J d of OPDs, that is, tuning the energy level and electron traps of the anode interface layers (AILs). The bandgap and electron traps of typical organometallic chelate AIL (PEIE-Co) can be well controlled by adjusting the component ratio of PEIE and metal ions. The wide bandgap increases the carrier injection barrier under reverse and forward bias, endowing OPD with a much lower J d ; the electron traps induce hole tunneling injection by capturing photo-generated electrons under forward bias, thereby enabling the photomultiplication effect. The obtained OPD exhibits photoconductive/photomultiplication working mode at reverse/forward bias and the specific detectivity approaches ≈10 13 /10 12 Jones, showing promise for adaptively detecting faint and strong light. This study presents an intelligent strategy to achieve dual-mode OPDs, paving the way for the multifunctional development of photodetectors.
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BMC Oral Health
·
2025
·Vol. 25
·期 1
·1-16
·
IF 3.1
Guo Tiantian,Wang Dai,Gao Sherry Shiqian
Background To investigate the antibiofilm effect and mechanism of the silver nanowire (AgNW)-modified glass ionomer cement (GIC) against multi-species oral biofilm, and to examine the mechanical and biochemical properties of this novel GIC material. Methods Conventional GIC was incorporated with different concentrations of AgNW and silver nanoparticles (AgNP). Multi-species biofilms of Streptococcus mutans , Streptococcus sobrinus , Lactobacillus fermentum , and Lactobacillus rhamnosus were cultured for 72 h on GIC specimens. Scanning electron microscopy (SEM) was adopted to examine the accumulation of biofilm on GIC surfaces. A live/dead assay was performed to assess the viability of bacteria. Extracellular polysaccharides (EPS) were labelled with Alexa Fluor 647-labelled dextran conjugate and then observed by a confocal laser scanning microscope (CLSM). The D/L-Lactic Acid Assay Kit was used to evaluate the lactic acid production of the multi-species biofilms. Compressive strength, surface roughness, hardness, and wettability were measured by a universal testing machine, an atomic force microscope (AFM), a Vickers microhardness tester, and a contact angle meter, respectively. Colour stability and fluoride release of GIC specimens were assessed by VITA Easyshade® V and ion chromatography. Cell counting kit-8 (CCK-8) was used to study cytotoxicity. Results SEM images showed that fewer biofilms were accumulated on the AgNW-GIC surfaces. The live/dead assay showed that the ratio of live bacteria was significantly lower in AgNW-GIC groups than in conventional GIC (5.8% vs. 100%, p < 0.0001). The EPS production was significantly less in AgNW-GIC groups compared to conventional GIC ( p < 0.0001). There is no difference between groups regarding lactic acid production and fluoride release. The mechanical strength including compressive strength, surface roughness, hardness, and wettability were comparable between groups. The colour change between AgNW-GIC and conventional GIC was much milder than that between AgNP-GIC and conventional GIC. The results of cytotoxicity showed no significant differences in cell viability between groups. Conclusions This study demonstrated that AgNW-GIC had an excellent antibiofilm effect against multi-species oral biofilm, comparable mechanical and biochemical properties, and did not significantly affect the colour stability of GIC. The antibiofilm mechanism of AgNW-GIC may be related to inhibiting the viability and EPS production of bacteria.
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ACS Sustainable Chemistry & Engineering
·
2025
·
IF 7.3
Weixuan Wang,Qingzhou Li,Mengyue Gao,Kun Wang,Xilu Wu,Zhiyuan Bai,Yongsheng Liu,Qihang Yan,Yuxi He,Ze Xiong,Aiyan Shi,Guojian Yang,Zhipeng Li,Chengyi Hou,Qinghong Zhang,Yaogang Li,Yanhua Cheng,Kerui Li,Hongzhi Wang
High-efficiency solar-thermal conversion has received widespread attention in seawater desalination, purification, catalysis, and power generation. However, challenges still exist in the exploitation of the solar-thermal converters capable of thermal concentration to simultaneously suppress serious heat loss from conduction, convection, and radiation, which always leads to photothermal temperature <70 °C under 1-sun illumination. Herein, a solar-thermal converter integrated with trimode thermal concentration capabilities is prepared by in situ deposition of three stacked function layers (crumpled light-absorbing microtexture, transparent insulating silica aerogel, and transparent low-emission micronetwork) to simultaneously guarantee solar energy transmission/conversion and prevent conduction, convection, and radiation loss. As a result, the trimode integrated solar-thermal converter shows equilibrium temperatures as high as 90.9 °C under 1-sun illumination and 174 °C under 3-sun illumination, which is higher than most previously reported converters. Finally, a sustainable active building model is built with a power-generation roof to efficiently utilize solar-thermal energy. The solar-thermal converters synchronously drive constant thermoelectric generation (4.6 V, Pmax = 0.85 W m–2) and water heating (from 15.9 to 31.3 °C). The generated voltage powers smart electrochromic windows with the transmission modulation of natural light and its heat gain, significantly increasing indoor living comfort and saving energy in buildings by reducing lighting, heating, ventilation, and cooling loads.
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Nature Communications
·
2025
·Vol. 16
·期 1
·1-13
·
IF 15.7
Wang Xinzhong,Su Yiwen,Chen Jiashu,Yan Edward Hengzhou,Xia Qing,Wu Jie,Gong Shanhe,Tang Mingcong,Yip Wai Sze,Mu Yongbiao,Yi Yuyang,Wu Jinjin,Xu Fujing,Yang Xianzhong,Zhang Xiao,Dou Shixue,Sun Jingyu,Zheng Guangping
Current electrosynthesis catalysts typically rely on nanomaterial-based engineering with multi-dimensional structural modifications. However, such approaches may not always be necessary, especially for underexplored industrial electrochemical conversions. Here, we demonstrate that commercial platinum (Pt) foil catalysts excel in the electrochemical co-oxidation of waste polyethylene terephthalate (PET)-derived ethylene glycol (EG) and ammonia (NH 3 ) into formamide (HCONH 2 ), a process traditionally reliant on energy-intensive methods. This approach achieves a high Faradaic efficiency (FE) of 55.87 ± 1.4% and a productivity of 1003.63 ± 23.72 µmol cm −2 h −1 at industrially relevant current densities without any degradation for durable operation (more than 500 h and 300 h for H-cell and membrane electrode assembly (MEA) reactor, respectively). In situ spectroscopy, supported by theoretical calculations, suggests that *CH 2 O and *NH 2 are likely key intermediates. Furthermore, the product sustainability index (ProdSI) and techno-economic analysis (TEA) underscore the cost-effectiveness and sustainability of noble Pt foil in this scenario, challenging the conventional reliance on complex electrocatalysts. This work provides distinctive insights into catalyst screening and demonstrates a viable strategy for upcycling waste plastics.
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JOURNAL OF ALLOYS AND COMPOUNDS
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2025
·
IF 6.3
Fei Gao,Bo Liao,Wenmiao Li,Rui Yu
Molten salt electrorefining offers a promising approach for green and efficient recycling of waste cemented carbides. However, the conventional halide-based electrolytes suffer from volatile tungsten halide losses and only recover metallic tungsten, necessitating energy-intensive carburization to recover tungsten carbide (WC). Herein, we propose a novel electrolytic refining and recovery method based on an oxygen-containing CaCl 2 -CaO molten salt electrolyte. The introduction of CaO suppresses the formation of volatile tungsten halides, enabling simultaneous dissolution of carbon (C) and tungsten (W) in the WC-Co anode to non-volatile CaCO 3 and CaWO 4 , respectively. Retention of Co in the anode slime is achieved through controlling anodic potential, realizing component separation. The dissolved CaCO 3 and CaWO 4 are reduced at the cathode, resulting in the generation of WC powder. This work accomplishes the direct recycling of WC from spent cemented carbides without intermediate stages. The composite products of WC and carbon are deposited on the cathodes, of which morphologies are comprised of granular aggregates and flakes. The presence of carbon suppresses the formation of W 2 C and W. However, the residual carbon does not affect hard alloy reprocessing since the W/C ratio can be adjusted via controlled W addition during subsequent alloying. This paper proposes a novel short-process green recycling technology for strategic tungsten resources.
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WATER RESEARCH
·
2025
·
IF 12.4
Fang Zhao,Zhao Yang,Yifan Xiao,Ganghua Han,Kim R. Hardie,Mark Bartlam,Yingying Wang
The stereochemistry of antibiotics significantly affects resistance development. With rising antibiotic resistance, nanotechnology is emerging as a promising solution, potentially increasing the likelihood of nanoparticle coexistence with antibiotics in wastewater treatment plants (WWTPs). However, the influence of nanoparticles on chiral antibiotics induced resistance remains unclear. This study employed chemical characterization, metagenomics, and molecular docking to comprehensively elucidate the resistance mechanisms induced by the combination of silver nanoparticles (AgNPs) and chiral antibiotics (ofloxacin: OFL and levofloxacin: LEV). AgNPs significantly altered the abundance and composition of antibiotic and metal resistance genes, as well as the conjugative transfer of the RP4 plasmid among activated sludge communities, with the OFL_AgNPs combination exhibiting a higher resistance potential than LEV_AgNPs. Mechanistic studies revealed that chiral antibiotics selectively interact with AgNPs, promoting Ag + release, enhancing antibiotic uptake, and forming stable complexes. These interactions reshaped microbial functions, including cell membrane permeability, oxidative stress response, quorum sensing, and extracellular secretion, thereby shaping resistance profiles. This study reveals previously overlooked enantiomer-specific risks associated with nanoparticle-antibiotic interactions and provides a foundation for strategies to mitigate ARG dissemination in wastewater treatment and broader environmental systems.
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Advanced Energy Materials
·
2025
·
IF 26
Xinrui He,Hailong Sun,Peifeng Yu,Hezhang Li,Zezhan Zhang,Yi Niu,Jing Jiang,Chao Wang
Thermoelectric devices have garnered significant interest but face limitations due to their reliance on external equipment and relatively low energy density for energy storage. This study introduces an innovative integrated device that achieves both the function of thermoelectric conversion and energy storage within a single unit through a precipitation-driven Thermogalvanic effect. Strikingly, both the thermoelectric (P max = 3.51 W m −2 ) and electrochemical (E = 459 J m −2 , surpasses the reported highest value by 132%) performances are excellent. Furthermore, a large-area prototype module comprising 32 units manifests an open circuit voltage of 1.7 V and exhibits an energy density of 463.9 J m −2 . This work provides an innovative and effective approach to the high-performance recycling system of thermoelectric conversion and energy storage integrated devices.
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ACS Applied Electronic Materials
·
2025
·
IF 4.7
Yinyin Song,Zida Zheng,Dianyi Liu
Inorganic metal chalcogenides, such as Ag2S, are well-known for their high absorption coefficient, high carrier concentration, and excellent carrier transport properties. Ag2S exhibits strong light absorption spanning from ultraviolet (UV) to near infrared (NIR), making it highly promising for photoelectric applications. In this study, Ag2S thin films with good crystallinity and near-stoichiometric composition were prepared via the thermal evaporation process. These films demonstrated high absorption coefficient, excellent carrier mobility and high carrier concentration. The Ag2S-based photodetector was prepared and exhibited a broadband photoresponse ranging from 350 to 1200 nm, covering both UV and NIR regions. The semitransparent Ag2S photodetector was further developed and employed to consrtuct a high-resolution wavelength recognition system. Experimental results revealed an impressive wavelength measurement resolution of 1 nm, highlighting its potential for integration into miniature spectrometers.
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MACROMOLECULES
·
2024
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IF 5.1
Meiying Ge,Yonggui Li,Lixin Wu,Ren Liu,Jia-Tao Miao
Fabricating biobased flexible polymers with high toughness and self-healing ability will promote sustainable development of the fast-growing flexible electronic industry. Herein, a biobased allyl compound (BAMDB) with boronic ester bonds was synthesized from renewable eugenol and then combined with multifunctional thiol via thiol–ene “click” photopolymerization to form a series of flexible networks (BAMDB-SH). Their integrated performance, including thermal, optical, and mechanical properties as well as self-healing behavior, was studied. Their glass transition temperature ranged from 42 to 55 °C and showed high transparency (88.2–89.3% at 550 nm). At the same time, BAMDB-SH3 has the most excellent comprehensive mechanical properties with a tensile strength, an elongation at break, and a toughness of 29.8 MPa, 194.3%, and 35.3 MJ m–3, respectively, owing to its rigid-soft network structure with appropriate cross-linking density. Depending on the dynamic exchange of boronic ester bonds, BAMDB-SH3 networks could be healed in 30 min at 80 °C with a high self-healing efficiency of 98%. In addition, based on the excellent comprehensive performance and self-healing properties of BAMDB-SH3, it was used to prepare a sandwich sensor by integrated encapsulation of silver nanowires for wrist activity detection, demonstrating the potential applications of BAMDB-SH in flexible devices.
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STARCH-STARKE
·
2025
·
IF 2.7
Qin Chen,Xingyu Chen,Shiqing Song,Lingyun Yao,Huatian Wang,Di Zhao,Min Sun,Qian Liu,Chuang Yu,Tao Feng
High concentrations of pigment powders present significant challenges for dispersion stability in cosmetic formulations, the dispersion of iron oxide yellow paste may lead to flocculation, reducing its stability. This study employed octenyl succinate starch (OSA starch) and Arabic gum (AG) as composite wall materials to encapsulate iron oxide yellow and to optimize the dispersion system for water-soluble pigment powders. Transmission electron microscopy (TEM) and scanning electron microscopy (SEM) confirmed the formation of a well-structured microcapsule, significantly smaller than the original iron oxide yellow particles. Accelerated stability tests indicated that the microcapsule structure enhanced system stability, with improved performance observed at higher OAF solution concentrations. The contact angle measurements, which were consistently below 90°, demonstrated that the microcapsule structure enhanced the wettability and hydrophilicity of the OAF solution, thereby improving skin adhesion. The encapsulation of iron oxide yellow using OSA starch and AG underscores the potential application of natural hydrocolloids and modified starches in the cosmetics industry.
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Fishes
·
2025
·Vol. 10
·期 1
·29
·
IF 2.4
Yunqiang Guo,Chaoli Zheng,Yingfei Wang,Yongji Dang,Ruiyuan Li,Ye Tao,Yucheng Yang,Xiaofeng Sun,Zekun Song,Pengcheng Sun,Qian Zhang,Dandan Qian,Wenhao Ren,Xiyu Cao,Bowen Wang,Mengxi Xu,Bingyang Jiang,Yujing Li,Qing Sun,Jinye Wang,Lei Zheng,Yanling Sun
Aeromonasspecies are among the main pathogens causing rainbow trout infections. Silver nanoparticles (AgNPs) have a broad spectrum of antimicrobial properties and are usually produced by various green-synthesis methods. However, the application of commercialized AgNPs has not fully been clarified. Thus, the objective of this study was to evaluate the antibacterial activities of commercialized AgNPs (range of sizes 10–12 nm) on two contrastingA.salmonicidastrains (I-1 and I-4), isolated from rainbow trout; the antibacterial mechanism, histopathological alterations and the expression of immune-related genes were investigated. In vitro, the minimal inhibitory concentration (MIC) was 10 µg/mL for I-1, and lowered to 9.5 µg/mL for I-4, respectively. AgNPs were shown to disrupt both the cell wall and membrane of I-1 and I-4, resulting in cell lysis and degradation. In vivo, rainbow trout challenged by immersed or intraperitoneally injected infection, the 10 µg/mL AgNP-treated groups, both showed delayed deaths and lower mortalities compared to the control groups, without any clinical signs and pathological changes. Especially for the virulent I-4, the enhanced expressions of immune-related genes TNF-α, IL-1β, IL-10 and IL-11 were significantly reduced in the AgNP-treated group, indicating a lesser inflammation due to the application of AgNPs. This study would lay theoretical foundation for the wide application of silver nanoparticles in fish diseases.
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