NPG Asia Materials
·
2022
·Vol. 14
·期 1
·1-9
·
IF 10.761
Xiong Fangyihan,Zhang Liyun,Xu Lei,Zhao Huan,Lan Jianyang,Ji Chenhao,Chen Linfeng,Xia Fan
Directed transport of a small amount of water is a basic issue and has attracted extensive attention due to its importance in a wide range of applications, such as water collection, microfluidics, printing, bioanalysis, and microchemical reactions. Various strategies based on constructing a surface tension gradient or Laplace pressure gradient have been developed to realize directional water transport. Typically, electrostatic forces and magnetic fields are utilized to achieve high-speed water transport on open superhydrophobic surfaces. However, these methods suffer from water evaporation or contamination. Here, we report a magnetic superhydrophobic tubular PDMS actuator for directional water transport. The actuator deformed under an applied external magnetic field and actuated the water droplet to transport along the moving direction of the magnet. The water transport velocity reached 16.1 cm/s. In addition, as the inner surface of the actuator is superhydrophobic, the water droplet showed weak interactions with the surface and presented negligible mass loss during the transport process. The results of this work may inspire new design of actuators for directional water transport with high speeds.
研究领域:
材料科学
·
流体力学
·
生物工程
✓ 已验证
产品关联
DOI
高影响因子
SOLAR ENERGY MATERIALS AND SOLAR CELLS
·
2020
·
IF 6.984
Shujing Zhao,Lihua Chen,Chuantao Zhang,Qi-Meige Hasi,Lu Zhang,Xiaofang Luo,An Li
The production of fresh water by means of solar steam generation has emerged as one of frontier technologies for addressing the global water shortage issue. Here, we report the preparation of new photothermal materials by chemical modification of nickel foam with sulfur via a simple hydrothermal method for solar steam generation. The generation of nano nickel wire on the surface of skeleton of nickel foam by sulfur treatment could construct a much more dense network with hierarchical porous structure and hydrophilicity , which significantly enhance their light absorption (average 40–50% for untreated nickel foam while 91% for sulfur treated nickel foam (named as S–Ni foam) as well as water transportation . In the way, the as-prepared S–Ni foam possesses a high energy conversion efficiency of 83.6% under 1 kW m −2 irradiation. In view of most of reported photothermal materials which suffer the drawback of lose effectiveness in oily water, the S–Ni foam was further chemically modified with an anionic coordination between sodium perfluorooctanoate (PFO) and poly diallyl dimethyl ammonium (PDDA) chloride to achieve a strong hydrophilic-oleophobic wettability (named as OR-S-Ni foam). Such unique wettability endows the as-resulted OR-S-Ni foam excellent oil-repellent performance, making it possible solar vaporization even in water containing oils or organics contaminates, which should be of significantly technological significance for practical solar steam generation by largely extends its applications range.
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
·
2024
·
IF 8.3
Yi Pu,Jintu Fan
Acting as a “second skin”, clothing plays an indispensable role in providing comfort and protection in the wide range of environments in which we live. However, comfort and protection are often competing requirements and are difficult to improve simultaneously. By mimicking the exceptional thermoresponsive one-way liquid transport property of human skin, here we developed a scalable and ecofriendly skin-like fabric that has a tunable directional water transport rate while having excellent water repellency. The water transport rate is also temperature-responsive, just like skin. As the temperature increases, the wettability gradient in the spatially distributed channels (acting like “sweat glands”) increases, promoting sweat transport and evaporative heat dissipation. As the temperature decreases, on the other hand, the wettability gradient diminishes, reducing liquid transport and evaporative heat loss, thereby promoting heat retention. The fabric is highly suitable for sportswear and functional clothing and can have wider applications, such as oil–water separation, fog harvesting, etc.
研究领域:
材料科学
·
生物医学工程
·
纺织科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2018
·
IF 6.735
Chen Xu,Rui Feng,Fei Song,Jia-Min Wu,Yu-Qiong Luo,Xiu-Li Wang,Yu-Zhong Wang
Directional transportation of water flow, which is frequently seen in nature, is of not only great importance to organisms but also crucial demand for advanced science and technologies . Numerous contributions have been dedicated to the motion manipulation of single drops on chemically heterogeneous surfaces, which have hydrophilic/superhydrophobic patterns in general. Drop retention is therefore difficult to avoid due to the hydrophilic regions, and continuous transportation of water flow still remains a challenge. Here, a hydrophobic/superhydrophobic patterned surface, featured with chemical homogeneity, is developed via a simple coating on a morphologically heterogeneous surface. Such surface can guide the continuous water motions, and relationship between the surface patterns and the motion controllability is clarified. Additionally, the potential application of the patterned films is explored as a micro-mixing device for different drops. The finding and results are essential for advancing more applications of microfluidics and microchips.
研究领域:
材料科学
·
生物工程
·
流体力学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2022
·
IF 10.383
Junda Wu,Zhuo Yan,Yongsheng Yan,Chunxiang Li,Jiangdong Dai
Fog-harvesting devices (FHDs) have been widely explored and applied to alleviate the shortage of fresh water. However, during the fog collection process, how to maintain a balance between fog capture and water removal behaviors to enhance the water collection rate still remains a challenge. Herein, inspired by the Stenocara beetle, we combined a beetle-like Janus surface and the conventional cross-sectional Janus structure together, developed a simple spray-and-dry strategy to obtain three types of biomimetic asymmetric meshes, and explored the working modes for atmospheric fog collection. The surface wettability could be carefully controlled, and various asymmetric meshes with different water transportation behaviors were obtained. Through a detailed study of the fog collection process, we concluded that there existed three main working modes: Janus mode, hybrid mode, and Janus and hybrid mode. It was noted that the dual-directional Janus pump with the Janus and hybrid working mode balanced the fog capture and water removal ability and exhibited the highest water collection rate of 2478.73 mg m–2 h–1, which was 2.61 times more than that of the corresponding superhydrophilic mesh. Furthermore, the prepared dual-directional Janus pump showed superior mechanical durability and antibacterial ability. In general, this work was considered instrumental in the reasonable design of biomimetic asymmetric meshes and could provide references for efficient atmospheric fog harvesting.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2025
·
IF 3.9
Run Guo,Juanli Chen,Jing Fang,Xingjiang Wu,Zhensheng Yang,Zhiying Wang,Hao Li
Hydrogels with a low evaporation enthalpy and high water-molecule activation capability are regarded as promising substrate materials for solar-driven interfacial evaporation. However, the uncontrollable porous channels and cross-linking degree of traditional hydrogels limit water mass transportation, light absorption sites, and salt reflux and therefore result in low evaporation efficiency, poor salt tolerance, and terrible operational stability. Herein, we report poly(vinyl alcohol)/carbon nanotubes-co-poly(acrylic acid)-co-poly dimethyl diallyl ammonium chloride (PVA/CNTs-co-PAA-co-PDADMAC) (PADM) polyelectrolyte hydrogels via chemical cross-linking and polymerizing strategy. The as-prepared polyelectrolyte hydrogels possess interconnected porous channels (abundant porosity of 76.24%, high total pore area of 0.99 m2 g–1, large average pore diameter of 18.79 μm) and controllable cross-linking degree (good mechanical property), which can greatly promote the water mass transportation (0.395 g min–1), light absorption sites, and salt reflux. As a result, the PADM polyelectrolyte hydrogels can maintain high evaporation rate of 3.58 kg m–2 h–1, excellent salt tolerance (evaporation rate of 3.18 kg m–2 h–1 under 20 wt % high-concentration brine), and superior operational stability (invariable evaporation rate after 8 days of continuous evaporation), which exhibits great advantage in solar-driven interfacial evaporation.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
DESALINATION
·
2021
·
IF 9.501
Xu Ma,Xinyi Wan,Zhou Fang,Zhuoyi Li,Xiaobin Wang,Yue Hu,Mengyang Dong,Zhizhen Ye,Xinsheng Peng
Solar-driven interfacial desalination (SDID) has emerged as an efficient and eco-friendly technology to produce clean water. However, salt deposition on photothermal material severely restricts the operation stability and service life. Herein, this issue was addressed by regulating the oriented seawater transportation through flexible Cu(TCNQ) metal-organic frameworks (MOFs)-based nanorod arrays (MAS) and isolating the salt crystallization from the evaporating surface. The SDID device with the novel architecture is rationally designed, which not only shows good anti-salt deposition ability and superior clean water production performance, but also achieves simultaneous salt extraction. Under 1 sun irradiation, the MAS in SDID device displays an impressive water evaporation rate of 1.78 kg m −2 h −1 (projected area) and a high salt extraction rate of 47.0 g m −2 h −1 . Even at night, the MAS can also extract salt at the rate of 12.6 g m −2 h −1 . This work provides a new idea to design highly efficient multifunctional solar desalination device for seawater resource comprehensive utilization and zero-liquid discharge.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2023
·Vol. 33
·期 51
·2307590
·
IF 19
Ling Zhang,Yuwei Guo,Ruolian Mo,Xiang Liu,Guang Wang,Ronghui Wu,Hongling Liu
Smart apparel with unidirectional sweat transportation functionality is highly desirable for wearing comfort. However, simultaneously achieving fast unidirectional water transport, mechanical robustness, human body comfortability, and industrialized fabrication is challenging because of the difficulty in fiber-yarn-fabric multiscale textile structure manipulation. Here, for the first time, a unidirectional water-transportation metafabric (UWTM) with hierarchical weft-double-weave structure is developed using industrial-producible weaving technology. The UWTM not only shows a fast unidirectional sweat transportation property, but also a robust mechanical property, air permeability, tailorability, and human body comfortability. The unidirectional water transportation is realized by a well-engineered wettability gradient along fabric thickness direction by two-set weft yarns and one-set warp yarn. The UWTM shows a strong one-way transport capacity of 984%, with a short water droplet transportation time of 4 s. In addition, the unidirectional water transportation leads to an evaporative cooling effect to the human body, resulting in a 1.6 °C cooling compared with the most used cotton fabrics, exhibiting excellent wet-heat transfer responsiveness, and ensuring a comfortable microclimate between human skin and the environment. The facile and scalable method presented here paves a way for the design of fluorine-free, robust, comfortable, and wearable unidirectional water transport fabrics.
研究领域:
纺织科学
·
材料科学
·
生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
ANALYTICAL CHEMISTRY
·
2024
·
IF 6.7
Xuecui Mei,Lei Zhou,Liang Zhu,Bin Wang
Microfluidic chips play a crucial role in wearable sensors for sweat collection. However, previously reported wearable microfluidic chips, such as those based on poly(dimethylsiloxane) (PDMS) and paper, encounter sweat accumulation at the skin–sensor interface in practical applications, which consequently affects both sensing stability and wearing comfort. Herein, we propose a composite nanofiber membrane (CNMF)-based microfluidic chip for in situ sweat collection. The CNMF with directional water transport capability was integrated with patterned PDMS to prepare microfluidic chips. On one hand, sweat can be automatically transported to the analysis area along the designed pathway. On the other hand, sweat transfers from the hydrophobic membrane close to the skin to the hydrophilic membrane, effectively avoiding sweat accumulation and facilitating a comfortable skin microenvironment. Subsequently, we constructed a CNMF-based microfluidic fluorescence sensor for the analysis of multiple targets in human sweat. A portable 3D-printed device was employed for the visual signal output. Results indicated that the microfluidic sensor exhibits excellent reliability for collecting and analyzing sweat. This work provides new insights into the construction of wearable microfluidic chips with enhanced wearing comfort.
研究领域:
生物医学工程
·
材料科学
·
传感技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
APPLIED SURFACE SCIENCE
·
2022
·
IF 7.392
Yanjun Li,Ruhao Zan,Yuanjin Wang,Longqiang Shang,Ronghui Wu,Yue Liu,Zhenggang Rao,Kai Yao,Yi Liu,Linfeng Fei
Graphene-based materials are frequently highlighted as the candidate for solar steam generation (SSG) because of their advantages such as high solar absorption, tunable structure and low cost. However, graphene itself is not a “perfect” absorber for full solar spectrum and cannot efficiently transport water on its surface due to its intrinsic physicochemical characteristics. Here we designed and synthesized a graphene foam in a three-dimensional (3D) interconnected porous structure with silicon carbide nanoparticles anchored on graphene surfaces. The systematical characterizations confirm that the hybrid structure extends the solar absorption window of graphene in full solar spectrum; and moreover, the in situ environmental scanning electron microscopy (ESEM) experiments suggest the incorporation of SiC nanoparticles on two-dimensional graphene surface improves the condensation and transportation kinetics of water in the foam. As a result, the SSG device based on the graphene-SiC composite demonstrates an improved energy conversion efficiency up to 95% under one sun illumination compared with those of previous reported graphene-based materials. The findings may shed new light on the technologies for solar-energy-water nexus.
研究领域:
材料科学
·
能源技术
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
·
2023
·
IF 4.1
Weiliang Guan,Wenqian Nong,Xiaobo Wei,Renchi Chen,Zhihai Huang,Yuting Ding,Xiaoming Qin,Luyun Cai,Linchun Mao
Background Water-free transportation (WFT), as a novel strategy for express delivery of live shrimp ( Litopenaeus vannamei ), was recently developed. However, air exposure during this transportation arouses a series of abiotic stress to the shrimp. In this work, the influences of WFT stress on glycolysis and lipolysis metabolism and meat quality (umami flavor and drip loss) were investigated in comparison with the conventional water transportation (WT). Results Results showed that type II muscle fibers with the feature of anaerobic metabolism were dominated in shrimp flesh. In addition, the increments of intracellular Ca 2+ was detected in WFT and WT, which then activated the AMP-activated protein kinase (AMPK) pathway, and thereby promoted the consumption of glycogen, accumulation of lactate and lipolysis under the enzymolysis of hexokinase (HK), pyruvate kinase (PK), lactate dehydrogenase (LDH), and adipose triglyceride lipase (ATGL). Glycogen glycolyzed to latate. Meanwhile, ATP degraded along with glycolysis resulting in the generation of ATP-related adenosine phosphates such as inosine monophosphate (IMP) with umami flavor and phosphoric acid. More remarkable ( p < 0.05) physiological changes (except LDH and lactate) were observed in WFT compared to WT. Additionally, fatty acid profile also slightly changed. Conclusions The transport stress induced significant energy metabolism changes of shrimp flesh, and therefore effected the flesh quality. The intensifications of freshness (K value) of shrimp flesh were detected due to ATP degradation, which were more pronounced after WFT. However, the drip loss of shrimp flesh was more significantly increased ( p < 0.05) after WFT compared to WT. This article is protected by copyright. All rights reserved.
研究领域:
水产养殖
·
生物化学
·
代谢
·
食品科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Foods
·
2024
·Vol. 13
·期 21
·3472
·
IF 4.7
Jia Li,Yuxin Liu,Huanhuan Yang,Luyun Cai,Wenqian Nong,Weiliang Guan
Water-free transportation (WFT) causes shrimp (Penaeus vannamei) flesh quality deterioration. However, the roles of endogenous protease-induced protein hydrolysis have been neglected in the research. In the present study, calpain zymography, gelatinase zymography, the hematoxylin–eosin staining method, and other methods were applied to investigate the response of various endogenous proteases (cathepsin, calpain, and gelatinase), the myofibril fragmentation index (MFI), and the microscopic morphology of shrimp muscle during WFT in comparison with the shrimp under the conventional water transportation strategy (WT). The results showed that the total activity of proteases in shrimp muscle increased significantly (p≤ 0.05) after simulated transportation. Cathepsins and gelatinases were activated during WFT. No significant (p> 0.05) changes of the activity of caspase-3 and the muscle cell apoptosis rate were detected in shrimp muscle cells after WFT. In addition, the MFI increased and the gap among muscle fiber bundles enlarged after WFT. Compared with WFT, no significant (p> 0.05) effect on the activities of calpain, gelatinase, and caspase-3 in the muscle of shrimp was found after WT, and only the activity of cathepsin L significantly increased (p≤ 0.05). Based on the findings, we concluded that the activation of various endogenous proteases was induced during WFT.
研究领域:
水产养殖
·
蛋白质组学
·
食品科学
·
动物生理学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）