JOURNAL OF ALLOYS AND COMPOUNDS
·
2026
·
IF 6.7
Yongrui Li,Zhaorui Zhang,Chenshuai Han,Fanjian Meng,Minghui Yang
Metal-oxide-semiconductor (MOS)-based gas sensors are promising platforms for NO 2 detection, yet their high operating temperatures and sluggish response-recovery times hinder practical applications. We report a hollow SnO 2 -In 2 O 3 heterostructure prepared through a hydrothermal route, followed by milling and calcination, enabling visible-light-activated NO 2 detection at room temperature. The sensor exhibits an exceptional response of 324.67–10 ppm NO 2 with rapid response/recovery times of 21/18 s and outstanding stability over 42 days. These remarkable properties arise from an increased number of active sites, a reduced band gap, and accelerates interfacial electron transfer. The well-engineered heterostructure facilitates efficient charge separation, enabling highly sensitive and low-power NO 2 sensing at room temperature. This work provides a heterostructure-engineering strategy for developing low-power MOS-based gas sensors for environmental NO 2 monitoring.
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高影响因子
JOURNAL OF DENTISTRY
·
2025
·
IF 5.5
Zhengyuan Yang,Huan Chen,Dan Feng,Zhaoying Liu,Zuosen Shi,Song Zhu
Objective The present study aims to address the negative impact of oral wet environments on the performance of light-curing composite resins by developing novel light-curing resin composites featuring dual hydrolytic resistance barriers. We evaluate their mechanical properties and hydrolysis resistance compared to Z250XT. Methods Urushiol-modified monomer (UMM) and Glass flake-KH570 were synthesized and incorporated into resin composites. Initially, resin matrix groups were prepared using UMM, with a control group that did not include UMM. These resin matrix groups were assessed for viscosity, degree of conversion (DC), polymerization shrinkage (PS), contact angle (CA), water sorption (Wsp), water solubility (Wsl), and mechanical properties to identify the optimal formulation. Subsequently, Glass flake-KH570 was added to the best-performing group in varying weight ratios, with Z250XT serving as the control group. The resin composite groups were evaluated for DC,PS,Wsp, Wsl, mechanical properties, and biocompatibility. Results The resin matrix containing UMM demonstrated lower viscosity, higher DC, reduced PS, increased CA, and decreased Wsp and Wsl compared to the control group. The optimal performance of the resin matrix was achieved at 15 wt % UMM. In experiments involving resin composites, the addition of Glass flake-KH570 resulted in lower Wsp and Wsl than Z250XT. Aging tests, supported by mechanical property measurements and scanning electron microscopy (SEM), indicated that UG65 exhibited superior mechanical properties and hydrolysis resistance compared to Z250XT. Conclusion The incorporation of UMM and Glass flake-KH570 into light-curing resin composites significantly enhanced their hydrolysis resistance, demonstrating strong potential for improving aging resistance in dental applications. Clinical Significance This novel resin composites demonstrate superior hydrolytic resistance compared to the commercial resin Z250XT, potentially offering a new approach to extending the service life of dental restorations.
研究领域:
牙科材料学
·
高分子化学
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高影响因子
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
·
2025
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IF 4.7
Wenfeng Yuan,Xianke Sun,Meng Wu
A phosphor that emits both white light and broad near-infrared (NIR) light is of significant interest across various fields, as it enables both visual inspection and NIR spectroscopic detection. In this study, we designed Dy 3+ /Cr 4+ codoped CaLuGaO 4 phosphors that emit both white light and broad NIR light ranging from 1100 nm to 1700 nm when excited at 450 nm. The white light is produced by the 4 F 9/2 → 6 H 15/2 , 6 H 13/2 , 6 H 11/2 transitions of Dy 3+ . The broad NIR light arises from the 3 T 2 to 3 A 2 transition of Cr 4+ . Additionally, energy transfer from Dy 3+ to Cr 4+ occurs in the Dy 3+ /Cr 4+ codoped CaLuGaO 4 phosphors, allowing for tunable ratios of white light to NIR light by varying the concentrations of Dy 3+ and Cr 4+ . A phosphor-converted light-emitting-diode was constructed by encapsulating the synthesized phosphors around a commercial blue LED chip, demonstrating potential applications in lighting sources and non-destructive spectral analysis.
研究领域:
材料科学
·
光学
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高影响因子
Materials Science and Engineering B-Advanced Functional Solid-State Materials
·
2025
·
IF 4.6
Yan Li,Ming Shen,Jing Kong
Although the antibacterial properties of ZnO nanoparticles have been widely studied for potential biomedical applications, their relatively mild antibacterial activity still limits the clinical application of ZnO-based antibacterial materials. Here, we reported a new method to improve the antibacterial activity and visible light absorption of ZnO nanoparticles by incorporating allicin on the surface. The synthesis was performed through a simple condensation reflux reaction to obtain the designed series of ZnO/Allicin composites. FT-IR, XRD, and TEM analysis proved the structure and composition of the obtained composites. All composites show visible light absorption in the UV–visible diffuse reflectance spectroscopy analysis. Through antibacterial activity tests, the ZnO/allincin-1 % sample showed significantly enhanced activity (2-fold increase) against Staphylococcus aureus after visible light excitation. Antibacterial mechanistic investigations reveal that the composition of allicin with the ZnO nanoparticles not only improves ROS productive ability but also enhances the release of Zn 2+ . Overall, this study provides a practical, convenient, and economic strategy to refine the visible light absorption and antibacterial activity of ZnO without introducing more toxic metal ions. In the meantime, this new nanomaterial could be a good starting point for initiating clinically applicable ZnO nanocomposites.
研究领域:
材料科学
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微生物学
·
生物医学工程
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Xiaoyu Xu,Shaoze Shi,Baohong Sun,Shuying Di,Juyang Zhang,Yuxin Xie,Ninglin Zhou
Agricultural coatings play a crucial role in addressing the global food crisis by significantly improving the plant growth environment, accelerating plant development, and enhancing the biological quality of plants. Nevertheless, there exist constraints in the form of limited sunlight utilization, decreased light transmission caused by surface icing leading to diminished plant photosynthesis, and high cost. In this study, a cost-effective and readily scalable superhydrophobic photothermal light-conversion coating is suggested as a means to improve the light conditions necessary for optimal plant growth. By employing in situ growth of carbon dots (CDs) on the surface and interlayers of montmorillonite (MMT) and hydrolytic polymerization of fluorinated alkyl silane (FAS) on the surface of MMT, light-converting superhydrophobic materials (CDs/MMT) with a micro-nano structure were synthesized. These materials demonstrated broad-spectrum fluorescence emission suitable for utilization by plant photosynthesis. They were dispersed into an epoxy resin (ER) matrix to obtain an agricultural superhydrophobic coating (ER-CDs/MMT). The “light absorption-capture-conversion” effect confers exceptional passive anti-icing and active de-icing properties upon the coating. Furthermore, outdoor planting experiments have demonstrated its capacity to substantially enhance the light environment and enhance the biological quality of soybean and morning glory by leveraging light scattering and conversion characteristics. This underscores its considerable potential for application in the next generation of facility agriculture.
研究领域:
农业科学
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材料科学
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植物生理学
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高影响因子
ACS Nano
·
2019
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IF 13.903
Hao Zhao,Jiabao Xu,Wenjing Huang,Guiting Zhan,Yanbing Zhao,Huabing Chen,Xiangliang Yang
Highly efficient nanoarchitectures are of great interest for achieving precise chemotherapy with minimized adverse side effects in cancer therapy. However, a major challenge remains in exploring a rational approach to synthesize spatiotemporally selective vehicles for precise cancer chemotherapy. Here, we demonstrate a rational design of bifunctional light-activatable platinum nanocomplexes (PtNCs) that produce dually cooperative cancer therapy through spatiotemporally selective thermo-chemotherapy. The Pt4+-coordinated polycarboxylic nanogel is explored as the nanoreactor template, which is exploited to synthesize bifunctional PtNCs consisting of a zero-valent Pt0 core and a surrounding bivalent Pt2+ shell with tunable ratios through a facile and controllable reduction. Without light exposure, chemotherapeutic Pt2+ ions are tightly bound on the surface of PtNCs, efficiently reducing undesirable drug leakage and nonselective damage on normal tissues/cells. Upon light exposure, PtNCs generate much heat via photothermal conversion from the Pt0 core and simultaneously trigger a rapid release of chemotherapeutic Pt2+ ions, thereby leading to the spatiotemporally light-activatable synergistic effect of thermo-chemotherapy. Moreover, PtNCs show enhanced tumor accumulation through the heat-triggered hydrophilicity–hydrophobicity transition upon immediate light exposure after injection, dramatically facilitating in vivo tumor regression through their cooperative anticancer efficiency. This rational design of spatiotemporally activatable nanoparticles provides an insightful tool for precise cancer therapy.
研究领域:
纳米技术
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癌症治疗
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材料科学
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生物医学工程
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PubMed
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2025
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IF 2.8
Hao Jiang,Ying Yang,Jinge Jia,Yan Jiang,Hongwen Zhang
Light diffusion film is a functional optical material designed to transform intense and non-uniform light from point or line sources into uniformly distributed, soft, and glare-free surface illumination through the scattering effect of embedded diffusion particles. In this study, raspberry-like composite particles were synthesized via electrostatic adsorption between PMMA microspheres and nano-sized SiO 2 . These particles were subsequently blended with a polysiloxane-modified acrylic resin, diluted, and coated onto a polyethylene terephthalate (PET) substrate to fabricate a light diffusion coating. The surface morphology of the composite particles and the resulting diffusion film was characterized using scanning electron microscopy (SEM), polarized optical microscopy, and confocal laser scanning microscopy. Optical performance, including transmittance and haze, was evaluated using a transmittance/haze meter and a UV-visible spectrophotometer. Compared to the pristine PET substrate, which exhibited a transmittance of 89.2%, the optimized diffusion film—achieved at a 6 wt% loading of diffusion particles relative to the acrylic resin—demonstrated superior light diffusion properties with a transmittance of 80.2% and a haze of 91.0%. Furthermore, the underlying light diffusion mechanism was systematically investigated.
研究领域:
材料科学
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光学材料
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纳米技术
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聚合物涂层
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照明技术
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高影响因子
Physica Status Solidi-Rapid Research Letters
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2025
·
IF 2
Hanguang Gou,Ding Huang,Qian Zhang,Xiaolong Liang,Weien Lai
In the era of artificial intelligence-driven information explosion, hybrid terahertz (THz) optical systems can play a pivotal role in multiple dimensional information transmission, which relies on high-performance THz modulators capable of multiwavelength optical excitation. Here, we present a multiwavelength light-driven broadband THz modulator based on manganese oxide nanoparticles (MnO NPs), exhibiting excellent broadband modulation within the frequency range of 0.1–1.6 THz and large modulation depth under different wavelength laser illumination at proper powers. The experimental results demonstrate that the THz modulator based on MnO NPs possesses superior compatibility and applicability compared with the traditional THz modulators. Based on the forward light scattering enhancement effect of the nanoparticles, the MnO NPs can effectively achieve light absorption enhancement at the interface between the nanoparticles and the silicon substrate, thereby significantly increasing the surface photoconductivity at the interface under optical excitation. Furthermore, the experimental results were effectively evaluated through numerical simulations within the framework of Drude model. Our work provides a compact and efficient solution for developing high-performance broadband THz modulators with large modulation depth and multiwavelength optical excitation, demonstrating the great potentials for advancing the next generation hybrid integrated THz optical systems.
研究领域:
太赫兹光子学
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纳米材料
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光电子学
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集成光学
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高影响因子
ACS Applied Polymer Materials
·
2025
·
IF 4.7
Yunhao Bao,Xiangrui Guo,Jiabao Zheng,Pinghou Sheng,Shilong Wang,Tianyi Wang,Yingcai Wu,Ziyuan Liu,Yun Ding
Color-changing materials make up a category of smart materials capable of exhibiting chromatic transitions in response to environmental stimuli. Certain thermochromic materials exhibit tunable optical transmittance during chromatic transitions, allowing for dynamic modulation of solar radiation in energy-efficient window applications. In this work, we develop a low-cost thermochromic poly(N-isopropylacrylamide)/carboxymethyl cellulose sodium/poly(ethylene glycol) (PCP) composite, achieving excellent light modulation and indoor temperature regulation capabilities. The introduction of CMC and PEG significantly enhanced the uniform dispersion of PNIPAM, thereby endowing the material with a highly efficient transition from transparent to opaque. Meanwhile, the results show that the PNIPAM/CMC/PEG smart window has high luminous modulation (ΔTlum = 99.20%) with approximately 100% luminous transmission (Tlum = 99.29%) at 25 °C and approximately 0% transmission (Tlum = 0.09%) at 35 °C. Additionally, the smart window demonstrated long-term stability in dynamic transparent–opaque transitions and a low transition temperature of 30.9 °C. Therefore, the proposed composite presents several advantages, including high efficiency, low cost, and easy scalability, offering new insights into the design and fabrication of smart windows and other smart materials.
研究领域:
材料科学
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智能材料
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节能建筑
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聚合物复合材料
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光学器件
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高影响因子
ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Zongtao Li,Zeqiang Huang,Jiexin Li,Yapeng Tang,Jiasheng Li,Xinrui Ding
Wearable visible light communication systems face fundamental limitations in dense multi-input multioutput configurations due to signal crosstalk between channels. Here, we demonstrate shear-aligned flexible polarized fluorescent antennas (FPFAs) fabricated through a scalable thermally assisted brush-coating induction (BCI) process. By systematically investigating the synergistic effects of ″coffee-ring″ phenomena and shear forces on halloysite nanotube alignment, we reveal the underlying physical mechanism enabling the formation of highly ordered structures with an orientation degree of 0.89. We encapsulate these structures in a sandwich configuration that maintains polarization performance while exhibiting mechanical stability, with parallel fracture strength 4.25 times higher than conventional designs. When integrated with quantum dot fluorescent conversion layers, these FPFAs achieve a 4.95-fold improvement in signal-to-noise ratio (SNR) compared to traditional receivers across wide viewing angles, even under extreme bending conditions. The resulting wearable communication system maintains 85.1% transmission accuracy at distances up to 9 m under ambient lighting, a 935% improvement over conventional approaches, with superior resilience to environmental disturbances including rain and fog. This work establishes an effective strategy for polarization multiplexing in wearable optical communications, with applications spanning healthcare monitoring, secure communications, and augmented reality interfaces in dynamic environments.
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Industrial Chemistry & Materials
·
2025
·
IF 11.9
Shihao Du,Run Shi,Jiaqi Zhao,Pu Wang,Jinhu Wang,Zhenhua Li,Peng Miao,Qianqian Shang,Chi Duan,Tierui Zhang
The ethanol dehydrogenation (ED) reaction is considered a sustainable pathway for hydrogen production. However, the ED reaction is energy-intensive as it requires high temperatures. Here, we report a layered double hydroxide-derived catalyst composed of CuPt bimetallic nanoparticles for efficient light-driven ED reaction without additional thermal energy input, achieving a hydrogen production rate of 136.9 μmol g−1 s−1. This rate is 1.4 times higher than that achieved at the same temperature in the dark. Experimental results and theoretical simulations suggest that the localized surface plasmon resonance (LSPR) effect of Cu reduces the apparent activation energy of the light-driven ED reaction. The presence of Pt nanoparticles around Cu enhances the LSPR effect, thereby significantly increasing the hydrogen production efficiency.
研究领域:
催化化学
·
能源科学
·
材料科学
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高影响因子
Nature Communications
·
2025
·Vol. 16
·期 1
·1-11
·
IF 15.7
Zhu Zhijie,Qian Shuairen,Dong Xudong,Liu Shuang,Zhou Yuxuan,Nie Kaiqi,An Xingda,Li Chaoran,Cheng Yi,Yan Binhang,Feng Kai,Zhang Xiaohong,He Le
Plasmonic photocatalysis offers a promising route to harvest solar energy and drive chemical reactions by the generated heat and energetic charge carriers towards a low-carbon economy. Understanding the mechanisms of plasmonic photocatalysis is vital for the rational design of efficient catalysts but remains a great challenge. Here we report the discovery of an overlooked photocatalytic mechanism based on the enhanced coverage of CO on an Au-Ni heterostructure under light. Detailed studies reveal that hot carrier transfer from Au to Ni via plasmonic excitation increases the electron density of Ni, thereby boosting the population of Ni sites capable of CO adsorption. This increase in active CO-binding sites, rather than local heating or altered adsorption properties of individual Ni sites, is found to be the major contributor to the light-promoted CH 4 production in the Au-Ni-catalyzed CO hydrogenation reaction. This mechanism is further validated by the observation of higher CH 4 selectivity in photocatalytic CO 2 hydrogenation. Our study deepens the mechanistic understanding of plasmonic photocatalysis and offers new ideas for the design of advanced catalytic structures.
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