Nature Communications
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2025
·
IF 15.7
Wei Zhong,Haojie Zhao,Bowen Yao,Zhenze Li,Shuai Zhou,Zhifeng Wang,Yuhao Geng,Wen Sun,Jiajun Fu
Bionic electronics are designed to bridge the gap between biological systems and conventional electronic devices. However, replicating the high dynamic adaptivity and functional plasticity of living tissues while preserving the electrical performance and structural integrity of traditional electronics remains highly challenging, owing to the intrinsic trade-offs in molecular design. To address this issue, a methodology of reversible nanophase regulation is proposed, inspired by ion-specific effects in biological environments. Benefiting from the dynamic response of noncovalent interaction to specific ions, the developed system can successfully integrate multiple traditionally contradictory properties–combining outstanding electrical/mechanical performance with excellent reconfigurability, such as re-writability of conductive pathways, in-situ wet solderability with good spatial resolution, and closed-loop recyclability. This methodology offers a promising framework for designing reconfigurable devices for bioelectronics applications such as human-machine integration and tissue engineering. Man-made electronics often face trade-offs among biological-like plasticity, electrical performance, and structural integrity. The authors show that ion-specific effects in biology can be leveraged to create reconfigurable materials for bionic electronics.
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CHEMICAL ENGINEERING JOURNAL
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2025
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IF 13.2
Pengxiang Si,Mingrui Liang,Jihua Zou,Yu Kuang,Juntao Zhang,Qingsha S. Cheng,Yiqian Kong,Yuxin Cai,Guozhi Huang,Yun Wu,Zhu Long,Boxin Zhao,Dan Zhang
Bio-integrated electronic devices are skin-mounted accurate tools for acquiring biological signals. The knee joint is one of the most important joints for human movement, playing a crucial role in functions such as walking, standing, sitting and containing important physiological health information about orthopedic disease diagnosis, prevention, and rehabilitation. However, it is still challenging to precisely and directly monitor joint rotation via skin-mounted bio-integrated electronic devices because joints are hidden inside the skin. In this study, we design a reusable, sustainable, battery-free, wireless, and flexible antenna sticker to adhere to the skin that can directly measure knee joint rotation degree. The antenna sticker is adhered to the lower leg and powered by electromagnetic radiation from a radio frequency identification (RFID) reader. When rotating the knee, the distance between the antenna sticker and the reader changes, leading to an alteration in the received signal strength indicator (RSSI). Meanwhile, the 3D optical motion capture system collects joint rotation data as a “gold standard”. After matching two series of real-time data using the Gaussian method, one RSSI can represent one specific joint rotation degree. The antenna sticker is stable at a variety of humidity and temperatures. The antenna sticker shows great potential to sense joint rotation and human motions. The scientific insights and engineering principles revealed in this antenna sticker will be applicable to a broad range of applications including skin-mounted epidermal electronics and wearable devices.
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ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
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2020
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IF 4.872
Bowen Xiao,Xiaolei Wang,Jing Yang,Kunkun Wang,Yinqing Zhang,Binbin Sun,Tong Zhang,Lingyan Zhu
The wide application of silver nanoparticles (AgNPs) has inevitably led to their release into the natural aquatic environment. Natural organic matter (NOM) is ubiquitous and would influence the fate and effects of these nanoparticles in such aquatic environments. Here we demonstrate that NOM plays an important role in the bioaccumulation kinetics and tissue distribution of AgNPs in zebrafish. In the presence of humic acid and fulvic acid , the uptake rates of AgNPs decreased while the depuration rates of AgNPs increased. As a result, the bioconcentration factor (BCF) of AgNPs in the entire body of the zebrafish was reduced. AgNPs were mainly taken up by the zebrafish via oral ingestion and were greatly accumulated in the liver, intestine and gill. In the intestine, NOM effectively inhibited the AgNPs from penetrating the cell membranes into internal tissues and also suppressed the disintegration and dissolution of AgNPs in gastrointestinal fluid, thereby decreasing the absorption of Ag by zebrafish. This research underlines the significance of incorporating the effects of NOM into predictive models for accurately assessing the toxicity and ecological risks of nanoparticles in natural aquatic environments.
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ACS Applied Nano Materials
·
2025
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IF 5.5
Ping Cao,Yaohao Zhang,Yi Gao,Limei Zhang,Zhengyang Ji,Xinyue Cong
Organic–inorganic hybrid perovskite solar cells (PSCs) have attracted significant attention in recent years due to their exceptionally high theoretical photoelectric conversion efficiency. Although substantial breakthroughs have been made in controlling the bandgap by adjusting the ratio of organic–inorganic compounds, research on the electron transport layer (ETL) and hole transport layer has been largely overlooked, which greatly limits the further development of PSCs. In this study, a multilayer electron transport layer (ETL) was constructed based on ZnO nanofilms, utilizing MgO and SnO2 with similar lattice dimensions to create a multilayer nanofilm structure. This design achieved energy level alignment, reduced exciton migration energy, and suppressed nonradiative recombination. Compared to the ZnO-SnO2 bilayer ETL, the ZnO-MgO-SnO2 multilayer ETL demonstrated a 142% improvement in photoelectric conversion efficiency. Finite element analysis from a microscopic perspective revealed the influence of MgO on carrier concentration. Additionally, first-principles calculations elucidated the transition of MgO from an insulator to a wide-bandgap semiconductor as it transformed from bulk crystal to nanofilm. The ZnO-MgO-SnO2 multilayer model explained the changes in the energy band structure of the multilayer ETL, providing a theoretical foundation for continuously enhancing the photoelectric conversion efficiency of PSCs.
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ChemistrySelect
·
2025
·Vol. 10
·期 14
·e202406185
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IF 2
Yuhao Wan,Xiaoli Yang,Hang Wu,Rui Hu,Zhengya Gan,Jianjun Ding,Yi Gong,Xingyou Tian,Junfeng Li
Graphical Multilayered Ag/C-xL films were constructed by vacuum-assisted filtration of AgNWs and SWCNTs. Ag/C-7L film presented the best shielding performance more than 70 dB in X-band. This excellent performance was attributed to the alternating stacked AgNWs/SWCNTs structure, which not only enhanced multiple absorption and reflection, but also effectively avoided the oxidation of inner AgNW layer. In the face of the increasingly polluted electromagnetic environment, materials with efficient absorption of electromagnetic waves have been paid more and more attention. The structure regulation of electromagnetic interference (EMI) shielding materials with could enhance their EMI performance. In this work, multilayered single-walled carbon nanotubes (SWCNTs)/silver nanowires (AgNWs) composite film was fabricated via a facile vacuum-assisted filtration. With the increasing number of layers from 3 to 7, 7-layered composite film with introduced inner pores and gaps exhibited an excellent shielding performance more than 70 dB in X-band. This excellent performance is attributed to the alternately stacked and porous AgNWs/SWCNTs structure, which effectively constructed the interboundary polarization of AgNWs/SWCNTs and provided space to enhance multiple absorption and reflection, thus greatly improving the material's ability to absorb electromagnetic waves. In addition, the EMI SE T value of Ag/C-7L films in the X-band decreases by an average of only 4% after 1000 bends, 15% at 100% humidity and 100 °C, and 10% at −196 °C, which has excellent mechanical properties and stability. In this study, multilayer Ag/C-xL films show great potential in applications such as wearable materials, EMI protection in complex working environments, and green shielding.
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CERAMICS INTERNATIONAL
·
2025
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IF 5.6
Honglei Wang,Zixuan Tian,Zhuang Fu,Lijun Zhao,Lei Wang,Songtao Dong,Hongbo Ju
Cu 3 SbSe 4 has garnered significant attention due to its low thermal conductivity, complex elemental composition, and economic feasibility. In this study, Cu 2.85 Ag 0.15 Sb 0.985−x Bi 0.015 Pb x Se 4 (x=0, 0.05, 0.10, and 0.15) samples were synthesized using a system of vacuum melting combined with cold isostatic pressing techniques. The impact of Pb doping on the thermoelectric properties of Cu 2.85 Ag 0.15 Sb 0.985 Bi 0.015 Se 4 was comprehensively investigated. The experimental results revealed a notable increase in carrier concentration, from 2.95×10 18 cm −3 to 8.31×10 19 cm −3 , leading to a substantial improvement on the electrical conductivity. At 573 K, the electrical conductivity of the Cu 2.85 Ag 0.15 Sb 0.835 Bi 0.015 Pb 0.15 Se 4 reached 234.26 S cm −1 , while the power factor of the Cu 2.85 Ag 0.15 Sb 0.885 Bi 0.015 Pb 0.10 Se 4 achieved a maximum value of 883.5 μW m −1 K −2 . The incorporation of Pb induced lattice defects, which modified the phonon mean free path and enhanced phonon scattering. As a result, the increased phonon scattering contributed to a reduction in lattice thermal conductivity within the Cu 2.85 Ag 0.15 Sb 0.985 Bi 0.015 Se 4 sample. The thermoelectric figure of merit (ZT) for the Cu 2.85 Ag 0.15 Sb 0.935 Bi 0.015 Pb 0.05 Se 4 reached a peak value of approximately 0.74 at 573 K, marking a 157.4% improvement compared to that of Cu 2.85 Ag 0.15 Sb 0.985 Bi 0.015 Se 4 (∼0.47). This study demonstrates that multi-element doping is a highly effective strategy for optimizing the thermoelectric properties of the Cu 3 SbSe 4 system.
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IEEE SENSORS JOURNAL
·
2025
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IF 4.5
Luoxin Li,Wei Xiao,Lianjie Lu,Luntao Xia,Chenhe Shao,Yong Huang,Xin Liu,Zhenjin Xu,Qibin Zhuang,Zhengmao Ding,Dezhi Wu
Real-time monitoring of bearing operational status is critical for mechanical equipment safety. However, integrated temperature-strain sensors often encounter crosstalk between signals, which affects the accuracy and stability of measurements. Achieving precise in-situ monitoring of bearing temperature and strain conditions remains a significant technical challenge. Here, highly linear and stable AgNPs thin-film temperature sensors (AgNPs TFTSs) and AgNPs microcrack thin-film strain gauges (AgNPs MTFSGs) are proposed using laser-assisted printing technology, which are capable of accurately acquiring condition parameters of bearing. The printed AgNPs TFTS exhibited a low hysteresis error of 2.6 % and a high linearity of 0.999. The microcracks in AgNPs MTFSG were induced by ultraviolet (UV) laser, yielding a significant enhancement of the gauge factor (GF) from 1.03 (baseline) to 3.19. This twofold sensitivity improvement was achieved while maintaining excellent linearity (R²=0.997). In particular, these thin-film sensors exhibited good stability even when applied to bearings. Typically, AgNPs TFTS and AgNPs MTFSG maintained a low resistance drift rate of 0.012 %/h and a repeatability error of 2.1 % respectively, demonstrating broad adaptability. In addition, both AgNPs TFTS and AgNPs MTFSG exhibited excellent dynamic and static response characteristics. This provides a method for the direct in-situ fabrication of thin-film sensors with high linearity and high stability on mechanical components, such as gears, bolts, and so on.
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Catalysis Science & Technology
·
2025
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IF 4.2
Yilin Zhao,Fangwei Liu,Jingbo Hu,Yang Yang,Jianzhou Wu,Shihui Zou,Jie Fan
The Mn–Na2WO4/SiO2 catalyst for oxidative coupling of methane (OCM) is highly appealing and promising but its high light-off temperature (>800 °C) hinders its industrial application. Engineering catalysts for efficient catalytic performance is attractive yet challenging. In this study, we demonstrate that the incorporation of small amounts of silver into the Mn–Na2WO4/SiO2 catalyst significantly improves its performance, achieving a C2 yield of up to 20% at 750 °C. Characterization results indicate that silver facilitates O2 activation and promotes C–H bond activation, thereby further enhancing CH4 conversion. The findings offer valuable insights into advancing the design concept of high-performance OCM catalysts.
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Biomimetics
·
2025
·Vol. 10
·期 5
·304
·
IF 3.9
Wenjing Fan,Cheng Li,Bingping Yu,Te Liang,Junrui Li,Dapeng Wei,Keyu Meng
The rapidly evolving field of functional yarns has garnered substantial research attention due to their exceptional potential in enabling next-generation electronic textiles for wearable health monitoring, human–machine interfaces, and soft robotics. Despite notable advancements, the development of yarn-based strain sensors that simultaneously achieve high flexibility, stretchability, superior comfort, extended operational stability, and exceptional electrical performance remains a critical challenge, hindered by material limitations and structural design constraints. Here, we present a bioinspired, hierarchically structured core-sheath yarn sensor (CSSYS) engineered through an efficient dip-coating process, which synergistically integrates the two-dimensional conductive MXene nanosheets and one-dimensional silver nanowires (AgNWs). Furthermore, the sensor is encapsulated using a yarn-based protective layer, which not only preserves its inherent flexibility and wearability but also effectively mitigates oxidative degradation of the sensitive materials, thereby significantly enhancing long-term durability. Drawing inspiration from the natural architecture of plant stems—where the inner core provides structural integrity while a flexible outer sheath ensures adaptive protection—the CSSYS exhibits outstanding mechanical and electrical performance, including an ultralow strain detection limit (0.05%), an ultrahigh gauge factor (up to 744.45), rapid response kinetics (80 ms), a broad sensing range (0–230% strain), and exceptional cyclic stability (>20,000 cycles). These remarkable characteristics enable the CSSYS to precisely capture a broad spectrum of physiological signals, ranging from subtle arterial pulsations and respiratory rhythms to large-scale joint movements, demonstrating its immense potential for next-generation wearable health monitoring systems.
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Food Packaging and Shelf Life
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2025
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IF 10.6
Fengyan Liang,Jinwen Geng,Ziming Yang,Wanqi Cen,Miaoyu Zhao,Xunting Huang,Changbin Wei,Puwang Li,Kaidong Liu
Amphiphilic chitosan (DA-CS-AG) was synthesized and incorporated with ursolic acid (UA) to develop an active coating film. Characterization techniques confirmed the preparation of DA-CS-AG, and UA was successfully entrapped in the active coating films. With the weight ratios of UA to DA-CS-AG increasing from 1:20, 2:20–4:20, the coating films exhibited increased thickness, improved water resistance, higher tensile strength, and enhanced antioxidant and antibacterial properties. As the UA/DA-CS-AG weight ratio increased from 1:20–2:20, the films ’ UV-shielding capability, water vapor barrier properties, and elastic properties increased. However, these properties deteriorated when the weight ratio increased to 4:20. Preservation experiments of papaya fruits demonstrated that UA/DA-CS-AG-2 coating films delayed the ripening of papaya at 25 º C for 16 days based on appearance, color changes, quality indexes, and sensory evaluation. In conclusion, these active coating films can serve as packaging materials for fruits and vegetables.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2025
·
IF 8.5
Shu He,Zhiyue Cui,Hongli Fang,Xinyu Wei,Wei Shao
Recent advancements in conductive hydrogels have demonstrated significant progress in flexible sensing applications. However, integrating multifunctionality—including mechanical properties, environmental stability, high sensitivity, and great self-healing capability—into hydrogel sensors via a simple and eco-friendly synthesis approach remains a challenge. Herein, we reported multifunctional polyvinyl alcohol (PVA)/polyacrylic acid (PAA)/agarose (AG) hydrogels fabricated through a facile one-pot strategy. The dual-crosslinked network, enabled by AlCl₃ (physical crosslinker) and sodium tetraborate decahydrate (chemical crosslinker), synergistically enhanced structural integrity. Incorporation of carboxyl graphene oxide (GO-COOH) optimized mechanical strength (the fracture stress of 122.3 kPa) and electrical conductivity (10.56 ± 0.63 S/m). The hydrogel strain sensor exhibited exceptional sensitivity (gauge factor = 11.31 within 400–550 % strain), enabling precise monitoring of both large-scale motions (e.g., joint flexion) and subtle movements (e.g., facial expression). Notably, GO-COOH endowed the hydrogel with a rapid photothermal response, expanding its utility to photothermal sensing. Moreover, the dynamic borate ester bonds, metal coordination bonds and hydrogen bond interactions conferred 100 % self-healing efficiency, significantly prolonging the operational lifespan of the hydrogel sensor. This work presents a scalable, green synthesis route for multifunctional hydrogels, demonstrating broad potential in wearable health monitoring, environmental sensing, and human-machine interfaces.
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Small
·
2025
·
IF 12.1
Jie Huang,Kangpeng Jin,Chen Li,Hao Yang,Yiming Zhang,Xiyang Wang,Ming Huang,Zhen-Hua Ge,Liangwei Fu
Maximizing the average figure-of-merit ( ZT avg ) of thermoelectric (TE) materials is crucial for optimizing the module performance. Herein, this work enhances the ZT avg to 1.42 (298–673 K) in a n-type Mg 3 (Sb, Bi) 2 -based material by a stepwise optimization strategy. Specifically, Cr injects electron into Mg 3 Sb 0.8 Bi 1.19 Te 0.01 , which synergistically boosts carrier concentration and forms an electron accumulation layer at the interface. Meanwhile, lattice softening and interfacial scattering suppress lattice thermal conductivity. A peak ZT of 1.72 at 673 K and ZT avg of 1.30 over 298–673 K are achieved for Mg 3 Sb 0.8 Bi 1.19 Te 0.01 –1.5 wt.% Cr. Then, through grain refinement and Se doping instead of Te, a delicate equipoise is reached between the power factor and the electronic thermal conductivity. Eventually, the Mg 3 Sb 0.8 Bi 1.19 Se 0.01 –1.5 wt.% Cr sample obtains an outstanding ZT of ≈1.9 at 573 K and ZT avg of 1.42 over 298–673 K. The integrated two-pair full-Zintl YbZn 2 Sb 2 /Mg 3 (Sb, Bi) 2 module achieves a high conversion efficiency of 10.5% and power density of 0.37 W cm −2 simultaneously under a temperature difference of 370 K. More importantly, this module exhibits excellent thermal stability during a 10-day in situ test. This work provides new ideas for applications of full-Zintl modules to the recovery of waste heat.
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