COMBUSTION AND FLAME
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2021
·
IF 4.185
Tingting Zhou,Xiaodong Li,Chunjiao Liu,Xianrui Shi,Bo Wu,Xiaohui Duan,Guangcheng Yang
To meet the requirement of miniaturization and integration of the micro thrusters based on the chemical fuels, high-energy density compound is an emerging material as the chemical fuel. However, it is still challenging to realize the high-efficiency, stable and self-sustaining microcombustion of the high-energy density chemical fuels. Herein, we report the high-performance microcombustion of CWs/AP/CL-20 composite with nanoscale 2,4,6,8,10,12-(hexanitrohexaaza)cyclododecane (CL-20) and oxidizer ammonium perchlorate (AP) confined in a self-standing carbonized butterfly wing scales (CWs) matrix. CWs with multi-channeled hierarchical porous structure provide a model architecture for loading of AP and CL-20. CL-20 is designed to serve as heat/pressure loss compensate agent due to its high-energy density, fast energy release rate and large amounts of gas release during combustion process. The combustion of CWs/AP/CL-20 is greatly enhanced due to the enhanced heat and mass transfer originating from the multi-channeled hierarchical porous structure and synergistic reactions between components at nanoscales, which is demonstrated as promising solid-propellant for the micro thruster. It is found that the sample with oxygen balance close to zero, which can be conveniently regulated by adjusting the mass ratio of CL-20 and AP, has the best microcombustion performance, resulting in a specific impulse of 383.5 N·s/kg.
研究领域:
材料科学
·
化学工程
·
航空航天工程
✓ 已验证
产品关联
DOI
高影响因子
Polymers
·
2017
·Vol. 9
·期 9
·386
·
IF 3.364
Abdelrahman Elbaz,Jie Lu,Bingbing Gao,Fuyin Zheng,Zhongde Mu,Yuanjin Zhao,Zhongze Gu
In recent years, multiple types of substrates have been applied for regulating cell orientation. Among them, surface topography patterns with grooves or ridges have been widely utilizing for cell culturing. However, this construction is still complicated, low cost-effective and exhibits some technological limitations with either “top-down” or “bottom-up” approaches. Here, a simple and green method was developed by utilizing butterfly wings (Morpho menelaus,Papilioulysses telegonusandOrnithoptera croesus lydius) with natural anisotropic nanostructures to generate cell alignment. A two-step chemical treatment was proposed to achieve more hydrophilic butterfly wings preceding cell culturing. Furthermore, calcein acetoxymethyl ester (Calcein-AM) staining and Methylthiazolyldiphenyl-tetrazolium bromide (MTT) assay results demonstrated the appropriate viability of NIH-3T3 fibroblast cells on those butterfly wings. Moreover, the cells displayed a high degree of alignment in each specimen of these wings. We anticipate that those originating from natural butterfly wings will pose important applications for tissue engineering.Keywords:butterfly wings;anisotropic nanostructure;chemical treatment;cell alignment
研究领域:
生物材料学
·
组织工程学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Materials Chemistry B
·
2015
·Vol. 3
·期 9
·1743-1747
·
IF 4.726
Xinchun Tian,Guofen Song,Xiang Ding,Jiajun Gu,Qinglei Liu,Wang Zhang,Huilan Su,Danmiao Kang,Zhen Qin,Di Zhang
We report an effective process to transfer the scales of Morpho butterflies onto various substrates. Based on the difference in binding strength between molecular interactions and chemical bonds, this method provides photonic structure arrays with biological units, which are difficult to obtain otherwise.
研究领域:
生物学
·
材料科学
✓ 已验证
DOI
PubMed
高影响因子
RSC Advances
·
2016
·Vol. 6
·期 77
·73156-73159
·
IF 3.289
Wu Yi,Ding-Bang Xiong,Wang Zhang,Huilan Su,Qinglei Liu,Jiajun Gu,Shenmin Zhu,Di Zhang
Ge photonic crystals were synthesized by replicating butterfly wings with GeO2 via a facile liquid phase deposition followed by a reducing process. The reflectance spectra of the Ge photonic crystals show a broad peak at wavelengths of 700–800 nm and angle-dependent peak positions.
研究领域:
材料科学
·
生物学
✓ 已验证
产品关联
DOI
高影响因子
CARBON
·
2024
·
IF 10.5
Anqi Ni,Zhiqiang Xiong,Yingna Zhang,Xiao Jiang,Xin Li,Chongbo Liu,Xiaojun Zeng
Over the recent years, carbon materials derived from biomass have gained extensive interest owing to their structural diversity and high porosity. In this work, butterfly wings (BWs) with concave-cavity-array structure and vanadium-containing metal-organic framework (V-MOF) are selected as precursors, and a rail-like heterostructure composed of V 2 O 3 @C/BWs derived carbon (BWC) composite is constructed by a facile solvothermal reaction and one-step carbonization procedure. The unique concave-cavity-array structure of BWs is conducive to multiple reflections and scattering of electromagnetic waves (EMWs). Moreover, the V-MOF derived V 2 O 3 @C microspheres are uniformly dispersed on the surface and concave cavities of BWC, which generates abundant heterogeneous interfaces and boosts the interfacial polarization. The results show that the minimum reflection loss of V 2 O 3 @C/BWC composites reaches −59.3 dB, and the effective absorption bandwidth is up to 6.56 GHz, which covers the entire Ku-band. In addition, under the incidence angle of 15°, the maximum radar cross section reduction value of V 2 O 3 @C/BWC materials is found to be 43 dB m 2 . Overall, this work provides a new approach to develop carbon-based EMW absorbers with strong and ultra-wideband absorption.
研究领域:
材料科学
·
电磁学
✓ 已验证
产品关联
DOI
高影响因子
RSC Advances
·
2019
·Vol. 9
·期 44
·25875-25879
·
IF 3.049
Jie Lu,Ye Pan,Qifeng Zhong,Bing Liu
A simple method to create guided cellular orientation is illustrated by assembling fibroblasts on the dorsal side of M. menelaus wings. Moreover, by inserting the wing into tendon fibroblasts suspension at a tilt angle, guided cellular orientation concurrently with the cell density gradient is formed on the butterfly wings.
研究领域:
细胞生物学
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组织工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Biomimetics
·
2018
·Vol. 3
·期 1
·2
·
IF 0
Abdelrahman Elbaz,Bingbing Gao,Zhenzhu He,Zhongze Gu
Scaffold nanotopography plays the most significant role in the mimicry of the in vivo microenvironment of the hepatocytes. Several attempts have been made to develop methods and substrates suited to growing hepatocytes into aggregates. Functional biomaterials, particularly biodegradable polymers, have been used in several studies aimed to develop improved scaffolds with ordered geometry and nanofibrous architecture for tissue engineering. However, there are still some limitation in their fabrication: it is not cost-efficient, is time-consuming, and exhibits some technological complications. The synthetic scaffolds are usually non-biodegradable and can be non-biocompatible compared to the naturally derived biomaterials. Here, we utilized a simple, cost-effective, and green method with two-step chemical treatment to get more selected hydrophilic butterfly wings fromMorpho menelaus,Papilio ulysses telegonus, andOrnithoptera croesus lydiusas a chitin-based natural scaffolds to growing hepatocyte aggregates. We established a three-dimensional (3D) in vitro model for culture of HepG2 cells and aggregate formation that maintained the hepatocytes function on these natural anisotropic microstructures. Cells cultured on these substrates show higher viability than those cultured on a two-dimensional (2D) culture plate. Methylthiazolyldiphenyl-tetrazolium bromide (MTT) assay results revealed excellent viability of HepG2 cells onP. u. telegonuswings (fibrous area). The results also demonstrated appropriate cell activity, cell retention, and stable and functional expression in terms of albumin secretion and urea synthesis activity compared to the 2D monolayer culture of hepatocytes on the culture dish surface. With a slightly different degree, the other substrates also shown similar results. We anticipate that these natural anisotropic, biodegradable, and biocompatible substrates can maintain long-term hepatic culture as an in vitro 3D model for potential therapeutic applications and regenerative tissue applications. The model presented here provides a feasible alternative to the synthetic scaffolds and is expected to be more reliable for 3D organotypic liver culture models based on such scaffolds.Keywords:organotypic culture models;cell aggregate;HepG2;3D scaffolds;anisotropic microstructure
研究领域:
生物材料学
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组织工程学
·
肝脏研究
✓ 已验证
产品关联
DOI
PubMed
Journal of Materials Chemistry B
·
2013
·Vol. 1
·期 11
·1607-1613
·
IF 0
Zhongde Mu,Xiangwei Zhao,Zhuoying Xie,Yuanjin Zhao,Qifeng Zhong,Ling Bo,Zhongze Gu
Recently, surface enhanced Raman spectroscopy (SERS) has been widely studied for chemical and biological sensing. SERS substrates combined with photonic architectures have attracted more and more attention. Photonic architectures in butterfly wings are too complicated to fabricate with either “top-down” or “bottom-up” approaches. Herein, we developed a simple, reproducible, inexpensive and green method to fabricate SERS substrates from different butterfly wings where the component chitosan/chitin was utilized as in situ reducer to synthesize gold nanoparticles in natural 3D photonic architectures. The SERS performances of three butterfly wings are compared. And the results show that a SERS substrate based on M. menelaus is better than the other three substrates, which could detect 10−9 M 4-ATP and has the lowest RSD and moderate SNR. In situ synthesis of AuNPs in butterfly wings with photonic architectures paves the way for fabricating multiple SERS substrates based on natural materials.
研究领域:
材料科学
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生物学
·
光学
✓ 已验证
产品关联
DOI
PubMed
ACS Applied Materials & Interfaces
·
2015
·
IF 6.723
Dongdong Xu,Huanan Yu,Qun Xu,Guiheng Xu,Kaixi Wang
In this work, we report a simple method to fabricate smart polymers engineered with hierarchical photonic structures of Morpho butterfly wing to present high performance that are capable of color tunability over temperature. The materials were assembled by combining functional temperature responsivity of poly(N-isopropylacrylamide)-co-acrylic acid (PNIPAm-co-AAc) with the biological photonic crystal (PC) structure of Morpho butterfly wing, and then the synergistic effect between the functional polymer and the natural PC structure was created. Their cooperativity is instantiated in the phase transition of PNIPAm-co-AAc (varying with the change of temperature) that can alter the nanostructure of PCs, which further leads to the reversible spectrum response property of the modified hierarchical photonic structures. The cost-effective biomimetic technique presented here highlights the bright prospect of fabrication of more stimuli-responsive functional materials via coassembling smart polymers and biohierarchical structures, and it will be an important platform for the development of nanosmart biomaterials.
研究领域:
材料科学
·
生物仿生学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
APPLIED ORGANOMETALLIC CHEMISTRY
·
2020
·Vol. 34
·期 8
·e5730
·
IF 3.14
Tingting Zhou,Xiufang Qi,Yongjun Ma,Chonghua Pei,Xiaohui Duan,Bo Wu
To meet the requirement of generating more apparent specific heat release at lower temperatures for ammonium perchlorate (AP)-based composite solid propellants, the development of high-performance catalysts for improving the thermal decomposition properties of AP still remains essential and challenging. Herein, a novel catalyst, multichanneled hierarchical porous nanocomposite of CuO and carbonized butterfly wing (CuO/CBW), has been prepared through an in-situ reaction on original butterfly wing scales. Owing to the high active surface area and the good electrical and thermal conductivity, as well as the synergistic effect of CuO nanoparticles (20–25 nm) and CBW, CuO/CBW nanocomposite exhibits excellent catalytic activity for AP thermal decomposition in reducing the high-temperature decomposition temperature by 88.3°C, lowering the apparent activation energy from 190.0 to 103.1 kJ mol −1 and increasing the heat release from 255 to 1841 J g −1 .
研究领域:
材料科学
·
化学工程
·
催化材料
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Chemistry B
·
2017
·Vol. 5
·期 8
·1594-1600
·
IF 4.543
Guofen Song,Han Zhou,Jiajun Gu,Qinglei Liu,Wang Zhang,Huilan Su,Yishi Su,Qinghua Yao,Di Zhang
Tumor markers are usually over-expressed in human body fluids during the development of cancers. Monitoring tumor markers' level is thus important for early diagnosis and screening of cancers. One way to achieve this is based on the surface enhanced Raman scattering (SERS) technique that can drastically amplify Raman signals of analytes on a plasmonic metal (e.g., Au, Ag, and Cu) surface. However, this promising method suffers from aggregation of plasmonic nanoparticles. Here we report a stable, reproducible, and facile SERS-based readout method to detect an important tumor marker, carcinoembryonic antigen (CEA). This route utilizes Au butterfly wings with natural three dimensional (3D) hierarchical sub-micrometer structures rather than relying on the aggregates of metal nanoparticles. The Au butterfly wings show excellent SERS property and are temperature (80 °C) and time (6 months) stable on a sub-micrometer scale. Thus, the detecting antibodies and enzyme-linked secondary antibodies that are usually applied in conventional enzyme-linked immunosorbent assay (ELISA) can be replaced by chemically synthesized CEA aptamers, significantly simplifying the whole detection process. We demonstrate the feasibility of this method via quantitative detection of clinical CEA level in human body fluids. This work thus demonstrates a promising tumor marker detection technique based on a hierarchical sub-micrometer SERS structure, which could be useful for the mass screening of early stage cancers.
研究领域:
生物医学工程
·
分析化学
·
癌症诊断
·
纳米技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Advanced Materials Interfaces
·
2022
·Vol. 9
·期 12
·2102423
·
IF 6.389
Guihao Zhong,Dingxin Liu
Photocatalytic splitting of water into hydrogen has attracted growing concerns as a promising strategy for the development of clean and renewable energy sources. Fabricating novel photocatalysts with high H 2 evolution rate and good cyclic stability is extremely vital for practical applications. Herein, a novel CdS/Cd 2 SO 4 (OH) 2 composite derived from cadmium nitrate doped Cd-MOF is deposited on the surface of butterfly wings with reticular hierarchical structure for efficient hydrogen evolution reaction. The combination of unique hierarchical structure and MOF-derived CdS nanoparticles endows them with strong light absorbability, small band gap, and superior photogenerated charges separation efficiency, leading to excellent photocatalytic efficiency. Furthermore, in-depth measurements reveal the reduction of Cd 2 SO 4 (OH) 2 to Cd on the surface of CdS particle during the photocatalytic process. The obtained Cd metal can act as the electron trap to improve the charge separation efficiency and further promote the hydrogen production performance. As a result, the MOF-derived CdS/Cd 2 SO 4 (OH) 2 and final CdS/Cd systems with reticular hierarchical structure exhibit significantly enhanced hydrogen production performance compared with CdS/Cd 2 SO 4 (OH) 2 powder and MOF-derived CdS nanoparticles under visible light irradiation. It is expected that this synthetic approach can be used to fabricate other composite photocatalyst materials with reticular hierarchical structure for efficient water splitting to hydrogen.
研究领域:
材料科学
·
能源转换与存储
·
纳米技术
·
光化学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）