ADVANCED FUNCTIONAL MATERIALS
·
2022
·Vol. 32
·期 49
·2206705
·
IF 19.924
Lili Wang,Wanbo Li,Yuxin Song,Wanghuai Xu,Yuankai Jin,Chao Zhang,Zuankai Wang
Developing robust technologies to harvest energy from ambient environments is critical to applications in self-powered electronics. As a promising candidate, droplet-based electricity generators with transistor-inspired architecture, which consist of electrodes and dielectric material, have manifested superior capacity to gain sustainable energy from water. Despite extensive achievement, these devices are significantly limited by insufficient flexibility and unstable performance owing to the presence of inevitable mechanical abrasion, chemical corrosion, and interfacial detachment of electrode and dielectric material. Here, a facile approach is reported to construct a monolithic integrated droplet-based electricity generator (MI-DEG) device that enables high flexibility and robust electrical performance. The key to such flexibility and robustness of the MI-DEG device lies in the meticulous utilization of a thermal fusion strategy that makes specially-designed polymer electrodes and dielectric material seamlessly integrated together. It is demonstrated that MI-DEG exhibits stable electrical output with negligible attenuation under long-term mechanical deformation and abrasion, as well as retains over 60% of initial electrical output under harsh corrosive environments, as opposed to the complete failure of conventional counterpart. This study provides a hopeful pathway for the rational design of flexible and robust electricity generator, making it a step closer in the practical applications.
研究领域:
能源材料
·
纳米技术
·
电子工程
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DOI
高影响因子
Journal of Materials Chemistry A
·
2020
·Vol. 8
·期 6
·3509-3516
·
IF 11.301
Peng Wang,Weidong Wei,Ziqiang Li,Wei Duan,Huilong Han,Qing Xie
To endow strain sensors with superhydrophobicity may be a promising approach to improve the infrastructure safety in harsh environments. Artificial superhydrophobic strain sensors have exhibited good mechanical robustness and chemical resistance separately. However, a simultaneous demonstration of these characteristics along with superior liquid impalement resistance is still a big challenge. Here, we developed a strain sensor by combining fluorinated PDMS with multi-walled carbon nanotubes (MWCNTs). The key innovation in this research is achieving a multi-fluorination strategy on the PDMS matrix, which enhances the liquid impalement resistance without sacrificing mechanical robustness. Therefore, our strain sensors not only demonstrated superior sensitivity and excellent reproducibility, but also maintained superhydrophobicity after various kinds of destruction (such as toleration of strain up to 200%, man-made destruction using hands or sandpaper, chemical attack, 200 °C thermal attack and high-speed drop/turbulent jet impacts).
研究领域:
材料科学
·
传感器技术
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产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Yajun Mi,Wu Tong,Yin Lu,Xia Cao,Ning Wang
Currently, combining multimodal perceptual ability with mechanical robustness poses a significant challenge for developing hydrogel-based flexible electronics. Herein, a robust conductive hydrogel was successfully synthesized by introducing cellulose nanocrystals (CNC) as nanofillers and lithium chloride (LiCl) as the conductive component into the copolymer network through a one-pot crosslinking procedure in a water-dimethyl sulfoxide binary solvent. Besides excellent stretchable, self-adhesive, anti-freezing, self-healing, and anti-swelling properties, tunable and reversible optical property was realized due to the polarity-induced microphase separation of the hydrophilic and hydrophobic group in the zwitterionic sulfobetaine chains, enabling cyclic information encryption and decryption. An all-weather wearable sensor array was thus developed for multi-modal sensing of various environmental stimuli, including mechanical, and thermal variations. Specifically, the intensity and spatial distribution of strain can be detected almost in real time within a broad strain range, thus realizing speech recognation, text-to-speech and human electrocardiogram signal acquisition and underwater non-contact sensing functions. Notably, the CPAMD-based triboelectric nanogenerator demonstrates impressive temperature tolerance (−40 °C and 60 °C), and remarkable material identification capability. A non-contact proximity sensing sensor and a foul detection system were thus developed by coupling the piezoresistive, triboelectric and capacitive sensing metrics to serve as an electronic referee for identifying foul in curling. This work provides a valuable reference toward combining excellent mechanical robustness with balanced electrical performance for tactile perception and intelligent sports monitoring.
研究领域:
材料科学
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生物医学工程
·
柔性电子学
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2024
·
IF 7.7
Jingjing Liu,Lei Yao,Fang Zhao,Jingjing Zhang,Jingbo Gong,Jiabin Li,Ya Bian,Yalin Yin,Rui Zhao,Yijia Wang,Wei Wang
The robustness and catalytic activity of superoxide dismutase (SOD) are still the main factors limiting their application in industrial fields. This study aims to further improve the properties of a natural thermophilic iron/manganese dual-domain SOD (Fe/Mn-SODA fused with N-terminal polypeptide) from Geobacillus thermodenitrificans NG80-2 (GtSOD) by modifying its each domain using in-depth in silico prediction analysis as well as protein engineering. First, computational analysis of the N-terminal domain and GtSODA domain was respectively performed by using homologous sequence alignment and virtual mutagenesis. Seven proposed mutation sites favoring increased robustness were screened out for single-point mutants (SPMs) construction. Enzymatic characterization of these SPMs identified the most favorable mutation sites E107 and S265 located in two different domains. Subsequently, the dual-domain site combinatorial mutant (DDSCM) E107L/S265K showed significant superposition effects and additional improvement in catalytic efficiency, with a Kcat/Km value of 145.45 %, 33.66 %, and 60.33 % higher than the wild type (WT), the SPMs E107L and S265K, respectively. Molecular dynamics simulations, structural and surface charge analysis revealed the possible mechanism by which combinatorial mutations improve the robustness and catalytic activity of GtSOD. Furthermore, DDSCM showed more significant resistance to ultraviolet B and various stress than WT, indicating its highly competitive industrial application prospects.
研究领域:
生物化学
·
蛋白质工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Wei Tang,Houjie Yu,Dennis W. Hess,Lianpeng Zhang,Xijuan Chai,Kaimeng Xu,Xionghang Yang,Linkun Xie
Wood is a widely used carbon-storing material, but its applications are constrained by vulnerabilities to water, oil and fire. Existing coatings have limited functionalities, failing to meet the intelligent requirements of modern wood products and constructions. Inspired by bionics, a robust superamphiphobic fire sensing EP/F-POS@Fe3O4 coating was designed on wood substrate, fabricated from functional ferroferric oxide (Fe3O4) particles, tetraethyl orthosilicate (TEOS, hydrolyzed into polysiloxane), 1H,1H,2H,2H-perfluorodecyltrimethoxysilane (PFDTMS), and epoxy resin (EP) adhesive. Optimizing the EP content not only enhances coating stability but also engineers surface micronano reentrant structures, endowing the wood with excellent superamphiphobicity (water/oil contact angles >150°). The EP/F-POS@Fe3O4 coating maintains robust hydrophobic and oleophobic properties under sandpaper abrasion, tape peeling, glass bead impact, and knife scratching tests. At the same time, the coating’s effectiveness in reducing the wood’s liquid absorption further confirms its stable water/oil repellency. Importantly, beyond passive flame retardancy, the EP/F-POS@Fe3O4 coating features a breakthrough active fire alarm function: nonconductive under ambient conditions, it acts as a sensor upon flame exposure, exhibiting ultrafast (∼3 s) intelligent visual alarm response and excellent repeatability (>10 cycles), holding potential to mitigate fire risks. Obviously, the EP/F-POS@Fe3O4 coating shows great promise for future applications in wooden architecture and smart furniture.
研究领域:
材料科学
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仿生学
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消防安全工程
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表面工程
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智能涂层
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产品关联
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Huihui Zheng,Hongwei Zhou,Bohui Zheng,Chuanjuan Wei,Aijie Ma,Xilang Jin,Weixing Chen,Hanbin Liu
Hydrogels are increasingly used in flexible electronic devices, but the mechanical and electrochemical stabilities of hydrogel devices are often limited under specific harsh conditions. Herein, chemically/physically cross-linked double-network (DN) hydrogels containing binary cations Zn2+ and Li+ are constructed in order to address the above challenges. Double networks of chemically cross-linked polyacrylamide (PAM) and physically cross-linked κ-Carrageenan (κ-CG) are designed to account for the mechanical robustness while binary cations endow the hydrogels with excellent ionic conductivity and outstanding environmental adaptability. Excellent mechanical robustness and ionic conductivity (25 °C, 2.26 S·m–1; −25 °C, 1.54 S·m–1) have been achieved. Utilizing the DN hydrogels containing binary cations as signal-converting materials, we fabricated flexible mechanosensors. High gauge factors (resistive strain sensors, 2.4; capacitive pressure sensors, 0.82 kPa–1) and highly stable sensing ability have been achieved. Interestingly, zinc-ion hybrid supercapacitors containing the DN hydrogels containing binary cations as electrolytes have achieved an initial capacity of 52.5 mAh·g–1 at a current density of 3 A·g–1 and a capacity retention rate of 82.9% after 19,000 cycles. Proper working of the zinc-ion hybrid supercapacitors at subzero conditions and stable charge–discharge for more than 19,000 cycles at −25 °C have been demonstrated. Overall, DN hydrogels containing binary cations have provided promising materials for high-performance flexible electronic devices under harsh conditions.
研究领域:
材料科学
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生物医学工程
·
能源存储
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2022
·
IF 9.136
You Chen,Zijing Quan,Wenda Song,Ze Wang,Bo Li,Zhengzhi Mu,Shichao Niu,Junqiu Zhang,Zhiwu Han,Luquan Ren
Membrane-based materials with selective superantiwetting/superwetting surfaces have been applied widely to tackle the concerns of the ever-growing discharge of industrial oily wastewater, as well as frequent oil spill accidents. However, conventional membrane-based separation technologies are inefficient and limited, either by insufficient robustness or by the inadequate anti-oil-fouling property. Herein, a biomimetic superhydrophobic membrane (BSM) with multiscale hierarchical structures (MHSs) was prepared through a method combing self-growth and spray coating. Remarkably, the BSM featured a static water contact angle of 153 ± 0.5°. Accordingly, the BSM possessed highly efficient oil–water separation capability (>95%). In addition, the anti-oil-fouling property and anti-drag capability in the oily seawater of BSM were systematically investigated. In fact, the repellent properties of BSM toward multiple mixtures were attributed to the synergistic effect of both physical structures (biomimetic MHSs) and hydrophobic chemical compositions. Moreover, the BSM demonstrated excellent mechanical robustness (the number of abrasion cycles reached 35) and chemical durability (maintain superhydrophobicity in pH 1–14) through abrasion and strong acid/alkali corrosion tests, respectively. The durability of BSM provided more possibilities for its practical applications. The findings in this work offer a facile yet effective strategy for designing superhydrophobic membranes with excellent physicochemical durability and suggest a great potential value for oil–water separation and drag reduction applications.
研究领域:
材料科学
·
环境科学
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Yingchen Li,Chao Liu,Hongkun Cai,Xiaoguang Luo,Qinwen Guo,Baoyu Han,Zhihao Hu,Juan Li,Jian Ni,Jianjun Zhang
The successful commercialization of flexible perovskite solar cells (FPSCs) hinges on their long-term stability and scalability. Surface defects and residual stress stand out as the main factors impeding their performance. These elements play a substantial role in causing perovskite instability, which not only undermines the efficiency of FPSCs but also expedites device degradation. In this research, for the first time, aminopropyl double-ended polydimethylsiloxane (AP-PDMS) is employed to passivate the surface of perovskite films. The AP-PDMS spatial symmetric part like “pincers” captures two Pb2+ and forms a hydrogen bond with FA+, thereby effectively relieving the residual stress. Moreover, the hydrophobic siloxane within AP-PDMS acts as a protective barrier, preventing water from penetrating the perovskite. This approach yields high-quality perovskite films characterized by large grain sizes, low defect densities, and excellent crystallinity. Consequently, the enhanced device exhibits excellent moisture resistance stability. The FPSCs obtained a champion power conversion efficiency of 23.32%. More importantly, these FPSCs show the mechanical robustness with T90 > 10,000 bending cycles (bending radius of 5 mm) and operational stability with T80 > 1000 h.
研究领域:
材料科学
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聚合物化学
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光伏技术
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纳米技术
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固体物理
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ARCHIVES OF MICROBIOLOGY
·
2025
·Vol. 208
·期 1
·1
·
IF 2.6
Zhong Huichang,Chen Liyi,Liu Weifeng,Tao Yong
Xanthophyllomyces dendrorhous (anamorph form Phaffia rhodozyma ) is a key microbial host for industrial astaxanthin production, where yield depends on both the efficiency of the biosynthetic pathway and overall metabolic robustness. To develop superior industrial strains, we established an efficient evolutionary-enrichment system and an accelerated evolutionary workflow that couples astaxanthin production with cell growth under optimized oxidative stress conditions. This strategy enabled the enrichment of mutants exhibiting both high astaxanthin production and strong industrial fitness. Using this approach, we employed a high astaxanthin-producing X. dendrorhous strain A06 as the parental strain for evolution. After several rounds of screening over 2,000 colonies, we successfully identified the top-performing mutant, TP-4. TP-4 demonstrated a stable 20% increase in astaxanthin production relative to the parental strain, along with faster growth and enhanced fermentation performance. The genome of TP-4 was sequenced, and comparative genomic analysis against the parent strain A06 and a low-astaxanthin-producing control strain, C01, revealed multiple mutations potentially underlying its superior phenotype. These findings provide new insights into the metabolic and genetic basis of astaxanthin overproduction. This work establishes an efficient evolutionary platform for strain improvement and provides a mechanistic understanding of astaxanthin overproduction in X. dendrorhous , laying the groundwork for further optimization and industrial-scale application.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Nano
·
2018
·
IF 13.709
You Jun Fan,Xin Li,Shuang Yang Kuang,Lei Zhang,Yang Hui Chen,Lu Liu,Ke Zhang,Si Wei Ma,Fei Liang,Tao Wu,Zhong Lin Wang,Guang Zhu
Recently emerged electronic skins with applications in on-body sensing and human–machine interfaces call for the development of high-performance skin-like electrodes. In this work, we report a highly robust, transparent, and breathable epidermal electrode composed of a scaffold-reinforced conductive nanonetwork (SRCN). Solution-dispersed Ag nanowires, through facile vacuum filtration, are embedded into a scaffold made of polyamide nanofibers. Optical transmittance of 84.9% at 550 nm wavelength is achieved at a significantly low sheet resistance of 8.2 Ω sq–1. The resistance of the SRCN only slightly increases by less than 0.1% after being bent for 3000 cycles at the maximum curvature of 300 m–1 and by less than 1.5% after being dipped in saline solution for 2500 cycles. The excellent robustness is attributed to the reinforcement from the nanofiber-based scaffold as a backbone that maintains the connections among the Ag nanowires by undertaking most of the loaded stress. The SRCN not only forms tight and conformal bonding with the target surface but also allows the evaporation of perspiration, making it suitable as an epidermal electrode for long-time use. Furthermore, fine and clean-cut circuit patterns with a line width on the micrometer scale can be readily prepared, paving the way for fabricating sophisticated functional electronic skins.
研究领域:
生物医学工程
·
柔性电子学
·
纳米医学
·
可穿戴设备
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皮肤界面电子
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生物传感
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转化医学
✓ 已验证
DOI
高影响因子
Gels
·
2025
·Vol. 11
·期 9
·734
·
IF 5.3
Lihan Rong,Jiajiang Xie,Shigao Zhou,Tianqi Guan,Xinyi Fan,Wenjie Zhi,Rui Zhou,Feng Li,Yuyan Liu,Tingting Tang,Xiang Chen,Liyuan Zhang
The scalable fabrication of hydrogels with high toughness and low hysteresis is critically hindered by oxygen inhibition, which typically produces brittle, highly crosslinked (HC) networks. This study presents an oxygen-tolerant photoinduced electron transfer–reversible addition–fragmentation chain transfer (PET-RAFT) strategy for synthesizing highly entangled (HE) polyacrylamide hydrogels under open-vessel conditions. By optimizing the water-to-monomer ratio (W = 3.9) and introducing lithium chloride (LiCl) for spatial confinement, we achieved a fundamental shift in mechanical performance. The optimized HE hydrogel exhibited a fracture energy of 1.39 MJ/m3and a fracture strain of ~900%, starkly contrasting the brittle failure of the HC control (W = 20, C = 10−2) at ~50% strain. This represents an order-of-magnitude improvement in deformability. Furthermore, the incorporation of 15 wt% LiCl amplified the HE hydrogel’s fracture energy to 2.17 MJ/m3while maintaining its low hysteresis. This method enables the rapid, scalable production of robust, transparent thin films that exhibit dual passive cooling via radiative emission (>89% emissivity) and evaporation, rapid self-healing, and reliable strain sensing at temperatures as low as −20 °C. The synergy of entanglement design and confinement engineering establishes a versatile platform for manufacturing multifunctional hydrogels that vastly outperform their crosslink-dominated predecessors.
研究领域:
高分子科学
·
材料科学
·
生物医学工程
·
软物质物理
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功能材料
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环境能源材料
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Nature Synthesis
·
2025
·
IF 20
Shi Siyi,Gong Chenxiang,Tao Minqin,Wang Cong,Fan Baojin,Yuan Hao,Hu Huawei,Niazi Muhammad Bilal Khan,Yan Xuzhou,Hu Xiaotian,Chen Yiwang
Flexible perovskite solar cells achieve efficient bendable energy conversion, enabling next-generation wearable devices. However, the transition from laboratory-scale prototypes to industrial-scale modules is impeded by the non-uniform deposition of perovskite colloidal particles during printing, resulting in diminished power conversion efficiency. Inspired by biological interlocking mechanisms, we synthesized mechanically interlocked networks embedded in perovskite precursor inks, to construct a three-dimensional network that immobilizes perovskite colloidal particles, suppressing aggregation during printing. The dynamic network enables uniform co-deposition of perovskite colloidal particles under shear-induced flow, yielding high-quality crystalline films with enhanced optoelectronic properties. Flexible perovskite solar cells fabricated using mechanically interlocked network-doped precursor ink exhibit superior performance, achieving record power conversion efficiencies of 26.22% for small devices (0.10 cm 2 ) and 19.44% for larger modules (100 cm 2 ), alongside substantial improvements in long-term operational stability and mechanical robustness.
研究领域:
材料科学
·
纳米科技
·
能源材料
·
柔性电子学
·
光电器件
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高分子化学
·
薄膜制备
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）