MATERIALS RESEARCH BULLETIN
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2015
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IF 2.288
D.D. Liu,N.S. Yu,D.P. Liu,Y.Y. He,R. Liu,Q.J. Li,B. Liu,B.B. Liu
C 60 nano/microcrystals were synthesized from fullerene dissolved in three different trichlorobenzene isomers, to investigate the role of solvent as both shape and morphology controller in the synthesis of C 60 nanocrystals. Various C 60 nano/microcrystals, in particle-, sheet-, cuboid- and rod morphologies have been selectively fabricated at 80 °C using either solution evaporation or solution mixing method. The molecular structure of trichlorobenzene solvent plays a key role in the formation of different crystal morphologies, and also affects the crystal structure of synthesized samples.
研究领域:
材料科学
·
化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2018
·
IF 5.091
Dazhuang Xu,Meiying Liu,Qiang Huang,Junyu Chen,Hongye Huang,Fengjie Deng,Jianwen Tian,Yuanqing Wen,Xiaoyong Zhang,Yen Wei
Recently, fullerene (C 60 ) and its derivatives have been widely explored for many applications owing to their enriched physical and chemical properties. Specifically, the synthesis and biomedical applications of fluorescent C 60 have been extensively investigated previously. However, the preparation of polymer-functionalized fluorescent C 60 has not been reported thus far. In this study, water-dispersible fluorescent C 60 polymer composites were successfully synthesized through the combination of the thiol-ene click reaction and subsequent ring-opening polymerization. First, 2-aminoethanethiol was introduced on the surface of C 60 by the thiol-ene click reaction. The surface of amino group-functionalized C 60 (C 60 -NH 2 ) was further modified with poly(amino acid)s via ring-open polymerization of GluEG N-carboxyanhydrides (NCAs). The morphology, functional groups, optical properties and biocompatibility were examined by a number of characterization equipment and assays in detail. We demonstrated that the resultant fluorescent C 60 poly(amino acid) (C 60 -GluEG) composites have a small size (about 5 nm), high water dispersibility, intense fluorescence and high photostability. Cell viability results implied that the C 60 -GluEG composites possess low cytotoxicity. Moreover, these C 60 -GluEG composites can easily penetrate into live cells, indicating their great potential for biological imaging applications.
研究领域:
材料科学
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生物医学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Materials Chemistry B
·
2017
·Vol. 6
·期 3
·518-526
·
IF 4.543
Zhen Hu,Dayu Zhang,Long Yu,Yudong Huang
An ultraviolet (UV) light-triggered nanocarbon hybrid is developed for controlled C60 release with excellent nitric oxide (NO) quenching ability. This nanocarrier, consisting of reduced graphene oxide (rGO) and β-cyclodextrin (β-CD), is capable of hosting azobenzene functionalized C60 (Azo–C60) synthesized by diazo chemistry. The hybridization of rGO, β-CD and Azo–C60 enhances cellular uptake and limits the aggregation of C60, and shows enhanced protective effects on NO-induced cytotoxicity. More interestingly, azo groups can reversibly switch between trans- and cis-isomers upon UV irradiation, so that the Azo–C60 molecules exhibit photo-controlled release from rGO/β-CD in living cells. In vitro studies show that rGO/β-CD/C60 treated with UV irradiation causes higher NO scavenging efficacy, which further significantly increases the cell viability from 32.6% to 88.4% at low loading levels (50 μg mL−1). This represents an excellent NO quenching efficiency, better than other reports of the graphene/C60 nanohybrids, and indicates that this material can be an effective nanoplatform to combat oxidative damage. As the host–guest chemistry and diazo chemistry are versatile and universally applicable, it is worth noting that the present strategy can also be applied in preparing other photo-responsive nanohybrids, which should be valuable for use in life science and materials science.
研究领域:
生物医学工程
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材料科学
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细胞生物学
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产品关联
DOI
PubMed
高影响因子
Materials Research Express
·
2019
·Vol. 6
·期 12
·125312
·
IF 1.449
Maoyong Zhi,Quanyi Liu,Shansong Gao,Yinlong Zhao,Xinhua Zhu,Xuhong Jia
A novel three bilayers nanocoating containing MoS2 nanosheets and C60 was constructed on the surface of flexible polyurethane (FPU) foam by a layer-by-layer assembly method. MoS2 nanosheets were prepared by ultrasonic-assistant exfoliation method in a mixed solvent of N-Methyl-2-pyrrolidinone (NMP) and aqueous hydrogen peroxide (30% H2O2). MoS2-C60/FPU foam was prepared by alternately submerging the FPU foam into C60/guargum and MoS2/sodium alginate suspensions. Scanning electron microscopy (SEM) characterization showed that MoS2 nanosheets and C60 nanoparticles were uniformly distributed on the surface of FPU foam matrix. Thermogravimetric analysis demonstrated that MoS2-C60/FPU foam exhibited better thermal stability than the control FPU foam. Cone calorimeter test results revealed that MoS2-C60/FPU foam with the incorporation of 5.24 wt% MoS2-C60 nanocoating had a remarkable reduction in peak heat release rate (pHRR, 47.5% reduction), total heat released (THR, 51.1% reduction) and total smoke production (TSP, 33.1% reduction) compared with those of the control FPU foam. Furthermore, the morphology and structure of char residue after cone calorimeter test were investigated by SEM and Raman spectroscopy. The possible flame-retardant mechanism of MoS2-C60/FPU foam was proposed, and this significant improvement in flame retardancy could be ascribed to the insulating barrier and adsorption effect of MoS2 nanosheets, free radicals-trapping ability of C60 in condensed phase, and the catalytic carbonization effect of the MoS2-C60 nanocoating. This work provides a new approach for producing high quality flame retardant polyurethane foam materials.
研究领域:
材料科学
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化学工程
✓ 已验证
产品关联
DOI
高影响因子
ENVIRONMENTAL TECHNOLOGY
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2020
·
IF 2.213
Qiang Wang,Lei Li,Chen-Lu Long,Li Luo,Yuan Yang,Zhao-Guang Yang,Yaoyu Zhou
The wide application of fullerene C60 nanoparticles would inevitably lead to their release into the environment. In order to evaluate the environment risks of C60 and the subsequent effects on ecosystem health, a reliable quantitative methodology of C60 should be established. In this study, a rapid pretreatment method called low-density solvent-based dispersive liquid–liquid micro-extraction (DLLME) combined high-performance liquid chromatography-UV detector (HPLC-UV) was developed to detect C60 in environmental water. In this proposed method, toluene and methanol were chosen as the extraction solvent and the dispersive solvent, respectively. The optimized volume of extraction solvent and dispersive solvent were 100 μL and 10 μL, respectively. And the best shaking time was chosen as 10 min at room temperature for the optimal homogenization procedure for the extraction of C60 in water samples. The enrichment factor of 50 was obtained with 100 μL toluene, and the recoveries of C60 from various environmental samples were in the range of 81.4 ± 5.0–101.4 ± 6.2% at 1.25–5.00 µg/L spiked levels. The detection limits of C60 in tap water, surface water, living sewage and mining waste water were 0.19, 0.29, 0.34 and 0.22 μg/L, respectively. The low detection limit, good linear range and high recoveries of C60 in environmental water indicated that the proposed method could provide an efficient approach for the analysis and tracking of C60 in the environment.
研究领域:
环境科学
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分析化学
✓ 已验证
DOI
PubMed
高影响因子
APPLIED ORGANOMETALLIC CHEMISTRY
·
2020
·Vol. 34
·期 12
·e5978
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IF 3.14
Ying Hou,Yinxu Pan,Chunhong Dong,Bei Nie
We observed the unusual crystal transformation from solid AgNO 3 to Ag(I)-encapsulated fullerene (C 60 ) microcrystal by a coordination-driven crystallization, when casting C 60 solution on AgNO 3 crystal. The strong binding of Ag + -C 60 ruptures electrostatic interactions within AgNO 3 lattice, forming a binary hybrid material, which was characterized by XRD, Raman spectroscopy and mass spectrometry. Our results support the fact that AgNO 3 crystal can directly interact with fullerene C 60 molecules, other than through solvated metal cations. Two major factors, namely sturdy Ag + -olefin interaction and an enclosed cage effect play the dominating roles in crystal transformation. Adding to the regular solution-based crystallization, this facial protocol is expected to render an additional dimension in fabrication of exohedral metallofullerene architecture, regardless of solubility of metal cation in anti-solvent.
研究领域:
材料科学
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化学
✓ 已验证
产品关联
DOI
高影响因子
Nanoscale Research Letters
·
2022
·Vol. 17
·期 1
·1-9
·
IF 5.418
Zhou Zhuoli,Liao Guangmeng,Song Xinyu,Dai Qinyong,Sun Lei,Peng Yingquan,Wang Peng
As an important classification of photodetectors, broad spectral photodiodes are ubiquitous in the fields of industry and scientific research. Here, we reported a type of broad spectral organic–inorganic hybrid photodiodes (OIHPDs) based on planar-bulk heterojunction, which composed of 3,4,9,10-perylenetertracarboxylic dianhydride (PTCDA), copper phthalocyanine (CuPc) and fullerene (C 60 ). In our research, the dark current of the OIHPD with 10 nm C 60 film (10 nm-C 60 OIHPD) was as low as 25.6 μA, which is about 63 times smaller than the dark current of the OIHPD without C 60 film (C 60 -free OIHPD). It is considered that the significantly enhanced performance of 10 nm-C 60 OIHPD is attributed to the introduction of the C 60 film, which act as hole-blocking layer to reduce the dark current. And through the schematic energy level model combined with experimental measurements, the reason for the dark current change was well explained. Furthermore, the specific detectivity of 10 nm-C 60 OIHPD was almost one order of magnitude larger than it of C 60 -free OIHPD, and a notable enhancement of over 10 11 cm Hz 1/2 /W was obtained due to the fiercely reduced dark current. These results provide insights on how to improve the performance of organic photodiodes.
研究领域:
材料科学
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光电探测器研究
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产品关联
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Xiaohui Niu,Yongqi Liu,Rui Zhao,Mei Yuan,Hongfang Zhao,Hongxia Li,Kunjie Wang
Chiral metal–organic frameworks (MOFs) have attracted much attention due to their highly tunable regular microporous structures. However, chiral electrochemical recognition based on chiral MOFs is often limited by poor charge separation and slow charge transfer kinetics. In this case, C60 can be encapsulated into the cavity of [La(BTB)]n by virtue of host–guest interactions through π–π stacking to synthesize the chiral composite C60@[La(BTB)]n and amplify electrochemically controlled enantioselective interactions with the target enantiomers. A large electrostatic potential difference is generated in chiral C60@[La(BTB)]n due to the host–guest interaction and the inhomogeneity of the charge distribution, leading to the generation of a strong built-in electric field and thus an overall enhancement of the conductivity of the chiral material. Their enantioselective detection of tryptophan enantiomers was demonstrated by electrochemical measurement. The results showed that chiral MOF materials can be used for enantiomeric recognition. It is worth noting that this new material derived from the concept of host–guest interaction to enhance charge separation opens up unprecedented possibilities for future enantioselective recognition and separation.
研究领域:
材料科学
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电化学
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分析化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 16.744
Zhongzhong Jia,Hua Zhong,Jinliang Shen,Zhaohui Yu,Junlei Tao,Song Yin,Xudong Liu,Shi Chen,Shaopeng Yang,Weiguang Kong
Solution processed fullerene (C 60 ) films as the electron transport layers (ETLs) promise to substantially reduce the cost of the perovskite solar cells (PSCs). However, the self-aggregation nature of C 60 when dissolved in a solvent with high solubility (e.g., o-dichlorobenzene, o-DCB) makes the efficiency of the resulting PSCs lower than 18%. In this paper, we proposed a novel recipe of C 60 precursor solutions (XP-C 60 ) by using o-xylene (o-X) as the solvent and PCBM solution in chlorobenzene (CB) as the additive, which can simultaneously inhibit the aggregation of C 60 and advocate fast solvent drying. Homogeneous C 60 films of high quality from the new recipe solution can be readily fabricated at room temperatures, advocating the efficiency of the printed PSCs to over 17%. Finally, a champion efficiency of over 20% for the PSCs was achieved which is comparable to that of the PSCs with PCBM as the ETLs. XP-C 60 based PSCs also show good stability, which sustain 85% of its initial efficiency as being exposed in air with a relative humidity (RH) of 50% for over 20 days. Our work helps to understand the film-formation dynamics of C 60 by a solution method and cut the production cost of the PSCs to the bone.
研究领域:
材料科学
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能源工程
·
化学工程
✓ 已验证
DOI
高影响因子
Soft Matter
·
2012
·Vol. 8
·期 10
·2915-2923
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IF 4.39
Xue Xu,Ruibin Li,Ming Ma,Xia Wang,Yonghua Wang,Hanfa Zou
Organisms have evolved stress-inducible defense responses such as the P-glycoprotein (P-gp)-mediated efflux system to maintain chemical homeostasis in cells for both endogenous and xenobiotic compounds. However, despite the extensive focus on the potential interactions of P-gp with small molecules, the effect of nanoparticles on this transporter is scarcely reported. Thus in this work, in vitro experiments combined with molecular dynamics (MD) simulations were carried out to investigate the interactions of the multidrug resistance (MDR) protein P-gp with fullerene (C60), one of the most important nano-drug carriers. Upon exposure to fluorescence-labeledC60 (0–70 μg mL−1) for 2 h, significant accumulation of C60 is found in both the K562S and K562R cells, suggesting the incapability of P-gp to induce the efflux of this nanoparticle. In addition, in vitro inhibition assays also reveal that C60 does not obviously hinder P-gp-mediated rhodamine-123 transport in both K562S and K562R cells. The theoretical simulations further reveal the mechanism involved in C60-P-gp interactions, i.e., the binding of C60 barely induces the conformational changes of P-gp with RMSD of ∼4.8 Å and radius of gyration of ∼41.5 Å, and also no theoretical evidence shows that the C60 acts as a substrate or inhibitor of P-glycoprotein. These results demonstrate the potential of C60 as a good carrier candidate for MDR-targeted drug delivery, since organisms probably have not evolved to recognize this nanoparticle.
研究领域:
药理学
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纳米技术
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细胞生物学
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分子生物学
✓ 已验证
产品关联
DOI
高影响因子
WATER AIR AND SOIL POLLUTION
·
2024
·Vol. 235
·期 5
·1-17
·
IF 3.8
Zhou Zhuyou,Ji Yufeng,Wang Yong,Liu Menghe,Xu Ying,Liu Ruijie,Yang Mingjie,Zou Congyang
In this study, the carbon-doped bimetallic organic framework C 60 /MIL-101(Fe,Cu) catalyst was prepared for the first time via solvothermal synthesis method. The catalysts were characterized using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), and a series of other instruments. At the same time, methylene blue (MB) was used as the target degradation material to investigate the catalytic performance of H 2 O 2 for MB degradation under visible light. The degradation experiment showed that the removal rate of C 60 /MIL-101(Fe,Cu) to MB reached 99.2% within 80 min. Furthermore, cyclic experiments demonstrated good stability and reusability of the catalyst. Finally, the degradation mechanism of the reaction was deduced by quenching experiment, UV–vis diffuse reflection and mott-Schottky plots. The results show that hydroxyl radical (·OH) and superoxide radical (·O 2 − ) play a major role in the degradation of MB during photo-Fenton process.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Electronic Materials
·
2024
·
IF 4.3
Bin Du,Yinuo An,Xianhua Huan,Liuqing Yang,Yushun Zhao
Polyvinylidene fluoride (PVDF) piezoelectric nanofibers gain significant attention for flexible electronic devices, yet their low piezoelectric conversion efficiency remains a critical barrier to broader application. In this study, multiwalled carbon nanotubes (MWCNTs) are combined with fullerene (C60) to form a distinctive “grape-like” nanostructure (MC), which is then embedded into the PVDF matrix via electrospinning to produce PVDF/MC composite nanofibers. The incorporation of MC increases the β-phase content of the PVDF nanofibers by 11.07%, enhancing their piezoelectric properties, and also acts as localized conductive domains and stress concentration centers, synergistically boosting the output performance of the piezoelectric devices. Consequently, piezoelectric devices based on PVDF/MC-3 wt % composite nanofibers exhibit voltage and current outputs 559.1% and 1382.8% higher than those of pure PVDF, respectively. This innovative strategy of leveraging “grape-like” nanostructures to enhance PVDF’s piezoelectric performance represents a promising pathway toward achieving efficient energy conversion in piezoelectric materials.
研究领域:
材料科学
·
纳米技术
·
能源转换
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）