Applied Materials Today
·
2025
·
IF 6.9
Wenjian Zhang,Xiaoling He,Guanghan Huang,Yu Zhang,Guannan Yang,Chengqiang Cui,Xinxin Sheng
Carbon nanotubes (CNTs) are ideal 1D materials with nanometer-scale diameters, offering outstanding electrical, thermal, mechanical, and optical properties, making them widely used in thermal management applications. In this study, high-density CNTs were grown perpendicular to the fiber axis on the carbon fiber (CF) surface to synthesize an innovative CF-CNTs filler. This filler manifests multi-directional thermal conductivity, meaning that heat can be conducted along the axes of both CF and CNTs simultaneously. Then, CF-CNTs were vertically oriented and combined with polydimethylsiloxane (PDMS) to prepare the dual-oriented elastic composite, VACPCN. CF-CNTs hybrid and composites have been tested in multiple dimensions to characterize their unique morphology and physicochemical properties, confirming the successful preparation of CF-CNTs. Due to composite’s fabulous thermal conductivity and elasticity, VACPCN-15 was employed for chip thermal management, reducing the chip’s operating temperature by 6.9 °C. Meanwhile, the composite demonstrated high absorbance (23) and absorptivity (97.9 %) under low load (5 %). After irradiation with a simulated sunlight for 600 s, its temperature rose to 120.1 °C, which is 35.1 °C higher than that of PDMS. Furthermore, VACPCN indicated outstanding thermal cycling and photothermal cycling stability. Overall, the VACPCN exhibits substantial promise for transformative applications in the fields of microelectronic thermal management and solar energy conversion, offering a compelling solution for addressing the growing demands for efficient heat dissipation and renewable energy utilization.
研究领域:
材料科学
·
热能工程
·
太阳能技术
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产品关联
DOI
高影响因子
CARBON
·
2024
·
IF 10.5
Meng Lan,Xiaohua Jia,Rui Tian,Lei Feng,Dan Shao,Haojie Song
The formation of heat conduction pathway is the key to fulfill the demand for versatile thermal management. However, constructing a three-dimensional (3D) thermal bridge in a single step is challenging and entails the critical co-dispersion of multiple fillers. Here we propose a simple and controllable method to assemble conjugated hybrids of 1D carbon nanotubes (CNTs) with 2D graphene through hydrothermal centrifugation. In addition to armoring CNTs through the conjugation effect, ionic liquid crystals (ILC) assisted the CNTs to exfoliate graphite, facilitating the co-dispersion of the binary material. Remarkably, the resulting graphene/CNTs (GC) hybrids acquire hydrophilicity from the ILC and manifest diverse states depending on the water content, including octopus-like blocks, self-limiting gels, high-concentration slurries, and dilute dispersions. Hybrid nanocomposite papers containing ANF nanofibers with 3D thermally conductive bridges yield exceptional photothermal conversion performance and Joule heating performance, rendering them suitable for flexible wearable applications. The multistate GC hybrids presented here afford a novel reference for the one-step construction of 3D thermally conductive bridges.
研究领域:
材料科学
·
纳米技术
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产品关联
DOI
高影响因子
Nano-Micro Letters
·
2025
·Vol. 17
·期 1
·1-22
·
IF 36.3
Shao Runze,Wang Guilong,Chai Jialong,Lin Jun,Zhao Guoqun,Zeng Zhihui,Wang Guizhen
The Janus-type multifunctional ultra-flexible polytetrafluoroethylene-carbon nanotube-Fe 3 O 4 /MXene (FCFe/M) membranes were fabricated via a shear-induced in situ fibrillation technique followed by vacuum-assisted filtration.
Thanks to the strategic distribution of the MXene conductive reflection layer and the silk-like FCFe electromagnetic wave’s absorption layer, the membranes achieve robust electromagnetic interference shielding and effective antireflection through the absorption-reflection-reabsorption mechanism.
The membranes exhibit exceptional thermal management performance, including efficient heat dissipation and electrothermal/photothermal conversion capabilities, further enhancing their promising potential for applications in flexible wearable technologies.
研究领域:
材料科学
·
电子工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Energy Storage
·
2024
·
IF 8.9
Xiaoxing Zeng,Lisheng Ye,Changhong Wang,Dieen Wu,Kaiwei Zhong,Zijie Kong
Phase change material is an effective battery thermal management technology, which can reduce the temperature of the battery module and maintain the temperature uniformity of the module. In this study, a highly stable solid-solid phase change material (SSPCM) was prepared through copolymerization using non-toxic, safe, and high-enthalpy polyethylene glycol (with molecular weights of 3000, 4000, and 6000) as the matrix. Polyethylene glycol 4000 was identified as the most suitable thermal management material, considering its packaging effect, heat storage capacity, and phase change temperature. The study utilized Materials Studio 2020 simulation software to investigate the micro-mechanism between carbon nanotubes and SSPCM. The interaction energy and mechanical properties of different hydroxylated carbon nanotubes (CNT-OH) with SSPCM were compared, and it was found that 5 % hydroxylated carbon nanotubes were the most effective. A composite solid-solid phase change material (SSPCM-CNT) with high thermal conductivity and stability was then prepared by incorporating CNT-OH. A battery thermal management system was constructed to test the performance of SSPCM-CNT, and the results demonstrated its excellent thermal management ability. Even under high discharge rates (5 C), the system with SSPCM-CNT effectively addressed temperature non-uniformity, maintaining the system temperature within 50 °C (specifically 48.92 °C) and the temperature difference within 2.5 °C.
研究领域:
材料科学
·
能源工程
✓ 已验证
产品关联
DOI
高影响因子
Polymers
·
2024
·Vol. 16
·期 6
·734
·
IF 4.7
Yanyan Wu,Anqi Chen,Wenlong Jiang,Zhiye Tan,Tingting Fu,Tingting Xie,Guimei Zhu,Yuan Zhu
The escalating thermal power density in electronic devices necessitates advanced thermal management technologies. Polymer-based materials, prized for their electrical insulation, flexibility, light weight, and strength, are extensively used in this field. However, the inherent low thermal conductivity of polymers requires enhancement for effective heat dissipation. This work proposes a novel paradigm, emphasizing ordered structures with functional units, to create triple-level, ordered, low-filler loading of multi-walled carbon nanotube (MWCNT)/poly(vinyl alcohol)(PVA) nanofibrous films. By addressing interfacial thermal resistance through –OH groups, the coupling between polymer and MWCNT is strengthened. The triple-level ordered structure comprises aligned PVA chains, aligned MWCNTs, and aligned MWCNT/PVA composite fibers. Focusing on the filler’s impact on thermal conductivity and chain orientation, the thermal transport mechanisms have been elucidated level by level. Our MWCNT/PVA composite, with lower filler loadings (10 wt.%), achieves a remarkable TC exceeding 35.4 W/(m·K), surpassing other PVA composites with filler loading below 50 wt.%.
研究领域:
材料科学
·
热物理学
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2020
·
IF 10.652
Zhao Sun,Lianjie Zhao,Haixiao Wan,Huan Liu,Dezhen Wu,Xiaodong Wang
To overcome the drawback that the electrochemical performance of supercapacitors tends to deteriorate at high working temperatures due to exothermic redox reactions during the charge–discharge process, we designed and fabricated a novel type of polyaniline (PANi)/carbon nanotubes (CNTs)-functionalized hierarchical phase-change microcapsules (MEPCM-PANi/CNTs) as a self-thermoregulatory microelectrode system. In this system, a layer-by-layer shell configuration was constructed by fabricating a SiO 2 base shell onto the n -docosane core via emulsion-templated interfacial polycondensation, followed by coating a PANi/CNTs electrochemically active layer through in-situ oxidation polymerization. Such a configuration was identified by morphological observations and chemical characterizations. The resultant MEPCM-PANi/CNTs not only show a good self-regulation capability of temperature and a high latent heat-storage capacity over 140 J/g, but also present several promising advantages for thermal management applications in practice, including excellent phase-change reversibility, high working reliability, long durability, good shape stability, and high heat resistance. Most of all, the MEPCM-PANi/CNTs exhibit better supercapacitor performance than the control sample without PCM core at high working temperatures due to the effective in-situ temperature regulation and thermal management derived from their n -docosane core. Moreover, the combination of PANi and CNTs also makes contributions to an excellent pseudocapacitive behavior and good charge–discharge cycle stability due to the improvement of electric conductivity and ion-accessible specific surface in the electrochemically active layer. This study provides a new strategy for design and development of the smart self-thermoregulatory electrode materials suitably used for high-performance supercapacitors in a broader working temperature range.
研究领域:
材料科学
·
能源工程
✓ 已验证
产品关联
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2023
·
IF 8.4
Hongyang Li,Chengzhi Hu,Yanhui Jiang,Jie Zhu,Yichuan He,Xianfeng Hu,Dawei Tang
Solid–liquid phase change materials (PCMs) with large latent heat can efficiently weaken thermal peaks, thus alleviating the thermal discomfort of human beings caused by electronic devices. However, the leakage during the melting process and the low thermal conductivity severely limit their application in electronic thermal management. In this study, a flexible and leakage-proof sodium alginate-based phase change composite film (PCCF) was first fabricated via a facile and green synthesis method with the assistance of stainless steel meshes, and its synthetic size could be easily regulated via a mold. Multiwall carbon nanotubes (MWCNTs) were used to enhance the thermal conductivity of the PCCF. Through the leakage prevention tests, it can be found that the PCCF-0.7 (the mass fraction of polyethylene glycol (PEG) was 70%) exhibited leakage proof under an external force. The phase change enthalpy of the PCCF-0.7 reached 100.05 J/g, and the enthalpy retention rate reached 76%. The radial thermal conductivity of PCCF-0.7 (contains 8 wt % MWCNTs) was 3.52 W/(m·K), 3810% higher than that of pure PEG. The heat transfer experiment demonstrated that the PCCF could efficiently store thermal energy; the maximum temperature of the analog smartphone could be reduced by 5.3 °C. Hence, the prepared PCCF is suitable for providing thermal comfort to electronic devices, and it is sustainable and eco-friendly.
研究领域:
材料科学
·
电子工程
✓ 已验证
产品关联
DOI
高影响因子
STAR Protocols
·
2024
·
IF 1.3
Zongyou Jiang,Zhongzuo Huang,Yating Li,Xiaoxiao Yu,Yannan Ma,Jinyan Yu,Yifan Xiang,Yue Lv,Shaoqi Gao,Yicheng Luo,Bo Wang
Summary In vitro cell culture serves as an efficient system for studying animal cell behavior in a controlled setting. Here, we present a 3D culture model for forming ruminant adipose organoids using stromal vascular fraction cells. We describe steps for forming cell spheroids and growing them on a Matrigel-coated surface. We then detail procedures for inducing organoids to undergo angiogenesis and adipogenesis followed by capillary sprouting. This protocol can be utilized to study the interaction between blood vessels and adipocytes. For complete details on the use and execution of this protocol, please refer to Yu et al. 1
研究领域:
细胞生物学
·
组织工程
·
兽医学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
BRITISH JOURNAL OF PHARMACOLOGY
·
2024
·
IF 6.8
Siyue Chen,Yuming Liu,Yutian Zhang,Xu Guo,Tinghui Bai,Kai He,Yanfang Zhu,Yi Lei,Mei Du,Xiaohong Wang,Qiang Liu,Hua Yan
Background and Purpose Pathological retinal angiogenesis is a typical manifestation of vision-threatening ocular diseases. Many patients exhibit poor response or resistance to anti-vascular endothelial growth factor (VEGF) agents. Bruton's tyrosine kinase (BTK) controls the proliferation and function of immune cells. Therefore, we examined the anti-inflammatory and anti-angiogenic effects of BTK inhibition on retinal angiogenesis. Experimental Approach Retinal neovascularisation and vascular leakage in oxygen-induced retinopathy in C57/BL6J mice were assessed by whole-mount retinal immunofluorescence. PLX5622 was used to deplete microglia and Rag1 -knockout mice were used to test the contribution of lymphocytes to the effects of BTK inhibition. The cytokines, activation markers, inflammatory and immune-regulatory activities of retinal microglia/macrophages were detected using qRT-PCR and immunofluorescence. NLRP3 was detected by western blotting, and the effects of BTK inhibition on the co-culture of microglia and human retinal microvascular endothelial cells (HRMECs) were examined. Key Results BTK inhibition suppressed pathological angiogenesis and vascular leakage, and significantly reduced retinal inflammation, which involved microglia/macrophages but not lymphocytes. BTK inhibition increased anti-inflammatory factors and reduced pro-inflammatory cytokines that resulted from NLRP3 inflammasome activation. BTK inhibition suppressed the inflammatory activity of microglia/macrophages, and acted synergistically with anti-VEGF without retinal toxicity. Moreover, the supernatant of microglia incubated with BTK-inhibitor reduced the proliferation, tube formation and sprouting of HRMECs. Conclusion and Implications BTK inhibition suppressed retinal neovascularisation and vascular leakage by modulating the inflammatory activity of microglia and macrophages. Our study suggests BTK inhibition as a novel and promising approach for alleviating pathological retinal angiogenesis. Graphical
研究领域:
眼科学
·
免疫学
·
药理学
·
分子生物学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
·
2021
·
IF 6.291
Jinsong Zhang,Jie Cui,Xinying Li,Xiaohui Hao,Lingli Guo,Hongli Wang,Heliang Liu
Silicosis, a type of lung inflammation and fibrosis caused by long-term inhalation of SiO 2 particles, lacks effective treatment currently. Based on the results of our previous animal experiments, in lungs of SiO 2 -induced silicosis rats, a large number of lymphatic vessels are generated in the early stage of inflammation, which is of great significance for the removal of dust and inflammatory mediators. Here, the molecular mechanism of lymphangiogenesis is further studied. Vascular endothelial growth factor (VEGF-C) is a key pro-lymphangiogenic factor, and its elevated expression is closely related to lymphangiogenesis. In this investigation, we demonstrated that the protein level of VEGF-C was differentially expressed in bronchoalveolar lavage fluid (BALF) and alveolar macrophages (AM) in silicosis patients and healthy controls. We further stimulated human monocyte-macrophage line U937 with SiO 2 , collected the culture supernatants as conditioned medium (CM) for culturing lymphatic endothelial cells (LECs) in vitro, and observed the expression of VEGF-C in the supernatant and its effect on LEC tube formation. The results showed that both CM and single VEGF-C recombinant protein stimulation significantly enhanced LEC proliferation [(1.80 ± 0.18), (1.73 ± 0.16)], chemotaxis [chemotactic cell number (101.40 ± 13.83), (93.40 ± 9.61)], and tube formation [tube number (32.20 ± 7.26), (25.00 ± 6.25); branch number (77.20 ± 6.80), (84.60 ± 7.90)], whereas CM treated with VEGF-CmAb inhibited the proliferation (1.37 ± 0.17), chemotaxis [chemotactic cell number (57.40 ± 8.62)], and tube formation [tube number (7.40 ± 1.85); branch number (47.20 ± 13.44)] of LECs. In addition, CM and VEGF-C can promote the expression of vascular endothelial growth factor receptor 3 (VEGFR-3) and lymphatic vessel endothelial hyaluronan receptor 1 (LYVE-1) in LECs, which may further mediate lymphangiogenesis by up-regulating the Src/eNOS downstream signaling molecular pathway. This study is the first to clarify the molecular mechanism of pulmonary lymphangiogenesis in silicosis and may point in the direction of eventual treatments, surveillance, and regulation at a molecular level.
研究领域:
呼吸科
·
分子生物学
·
免疫学
✓ 已验证
DOI
PubMed
高影响因子
Research
·
2022
·
IF 11.036
Yiqun Liu,Qi Yu,Xiaojin Luo,Le Ye,Li Yang,Yue Cui
Diabetes is a chronic metabolic disease with a high blood glucose level, leading to both seriously acute and chronic complications. The closed-loop system is an ideal system for diabetes management. However, the large size and high cost of the commercial systems restrict their widespread uses. Here, we present for the first time a microtube-based wearable closed-loop minisystem for diabetes management. The closed-loop minisystem includes a biosensing device, an electroosmotic micropump, and a printed circuit board (PCB) with an algorithm. The microtube-based sensing device coated on the outer surface of the microtube is inserted into subcutaneous tissue for detecting interstitial glucose; the current signal for sensing glucose is processed by the PCB to power the electroosmotic micropump intelligently for the delivery of insulin into the subcutaneous tissue via the microtube channel. The closed-loop minisystem worn on a diabetic SD rat can successfully maintain its blood glucose level within a safe level. It is expected that this new closed-loop paradigm could open up new prospects for clinical diabetes management.
研究领域:
医学工程
·
生物技术
·
糖尿病研究
✓ 已验证
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2023
·Vol. 33
·期 37
·2303970
·
IF 19
Tanghao Xie,Qinan Wang,Min Li,Yuxiao Fang,Gang Li,Shuangshuang Shao,Wenbo Yu,Suyun Wang,Weibing Gu,Chun Zhao,Minghua Tang,Jianwen Zhao
High-performance stretchable optoelectronic synaptic transistor arrays are key units for constructing and mimicking simulated neuromorphic vision systems. In this study, ultra-low power consumption and low-operation-voltage stretchable all-carbon optoelectronic synaptic thin film transistors (TFTs) using sorted semiconducting single-walled carbon nanotubes (sc-SWCNTs) modified with CdSe/ZnS quantum dots as active layers on ionic liquid-based composite elastomer substrates are first reported. The resulting stretchable TFT devices show enhancement-mode characteristics with excellent electrical properties (such as the record on/off ratios up to 10 5 , negligible hysteresis, and small subthreshold swing), excellent mechanical tensile properties (such as the only 12.4% and 6.4% degradations of the carrier mobility after 20% vertical and horizontal strain stretching), and optoelectronic synaptic plasticity (for the recognition of Morse codes) with ultra-low power consumptions (15.38 aJ) at the operating voltage from −1 to 0.2 V. At the same time, the designed nonvolatile conductance of the stretchable SWCNT optoelectronic synapse thin film transistors (SSOSTFTs) stimulated by UV light and the bending angle are first used to simulate stretchable neuromorphic vision systems (including the functions of the crystalline lens and optic cone cells as bionic eyes) for detecting the atmospheric environment with a record accuracy of 95.1% as a bionic eye.
研究领域:
神经形态工程
·
材料科学
·
电子工程
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）