MATERIALS CHEMISTRY AND PHYSICS
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2021
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IF 4.094
Xianhao Min,Qifei Xie,Zhiguo Wang,Xinzhong Wang,Mingxiang Chen
As traditional capping ligands like oleic acid (OA) and oleylamine (OLA) cannot efficiently maintain the optoelectronic properties and stability of iodide perovskite nanocrystals (NCs), post synthesis surface modification with some other ligand is a convenient and valid method to solve these problems to some extent. Here we promote a long carbon chain ligand with a thiol group, 1-Octadecanethiol (ODT), to realize the passivation of the surface of CsPbI 3 NCs after the synthesis process. After modification, our ODT-CsPbI 3 NCs exhibit excellent optical properties with a high PLQY of 93% and outstanding stability under different conditions compared to the untreated samples.
研究领域:
材料科学
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纳米技术
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光电子学
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DOI
高影响因子
MICROCHIMICA ACTA
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2014
·Vol. 182
·期 3
·855-862
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IF 3.719
Yan Fufeng,Zhang Yuanchang,Zhang Shuai,Zhao Jihong,Liu Shunli,He Linghao,Feng Xiaozhong,Zhang Hongzhong,Zhang Zhihong
We report on an efficient method for the production carboxy-modified graphene (carboxy-GR), and its application to a highly sensitive immunoassay for the livestock feed additive clenbuterol. Octadecanoic acid is shown to self-assemble on carboxy-GR via intermolecular interaction. Goat anti-mouse IgG was conjugated to 1-octadecanethiol-modified carboxy-GR and then deposited by self-assembly on a C18-modified gold surface. The resulting sensor surface was used to quantify clenbuterol by both surface plasmon resonance and electrochemical impedance spectroscopy. The assay works in the 0.01 ng∙mL −1 to 10 ng∙mL −1 concentration range and the lower detection limit is 6.57 pg∙mL −1 . It is concluded that this fairly simple method can be extended to immunoassays for other food additives.
Principle of sensor system and immunoassay. (i) Binding of ACG–IgG with the alkyl chain of 1-octadecanethiol through intermolecular force onto the gold substrate; (ii) absorbance of Ab CLB onto the surface of ACG-IgG; and (iii) detection of CLB using an immunoassay based on Ab CLB –ACG–IgG.
研究领域:
材料科学
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分析化学
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食品安全
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生物化学
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纳米技术
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2022
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IF 16.744
Ziyu Liu,Xingyue Zhu,Yazhou Tian,Kaiyun Zhou,Jue Cheng,Junying Zhang
Polymer-based form-stable phase change materials (FPCMs) have attracted much attention due to their excellent shape stability and facileness, low-energy-consumption preparation. However, bio-based recyclable phase change energy storage materials (PCMs), crucial for reducing pollution and sustainable energy storage, have not yet been prepared. Herein, we prepared a novel bio-based recyclable PCM (DGEM-18/FA/MA/xBW), in which a novel epoxy resin (DGEM) was synthesized by using bio-based magnolol and epichlorohydrin, bio-based 2-Furanmethanamine (FA) and C36-alkylenediamines bismaleimide (MA) were used to construct a reversible crosslinked network based on epoxy-amine ring opening and Diels-Alder (D-A) reactions as the supporting frame. And 1-Octadecanethiol (ODT) and bio-based beeswax (BW) with phase change property were introduced into this supporting frame by grafting on the C=C of Magnolol via “thiol-ene” click reaction and physical blending, respectively. The D-A and rD-A reactions proceed at the temperature below 80 ℃ and above 120 °C, respectively, which provides recyclability of the crosslinked network. The ODT and beeswax provide phase change latent heat up to 119.1 J/g for the sample DGEM-18/FA/MA/1.1BW. Furthermore, taking DGEM-18/FA/MA/0.4BW as an example, its shape memory performance has been explored, as well as its potential applications in recyclable thermal management coatings. To the best of our knowledge, this is the first report on the preparation of bio-based recyclable FPCMs.
研究领域:
材料科学
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可持续能源
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化学工程
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热管理
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DOI
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
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2023
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IF 5.9
Hua-Bin Yuan,Xue Lei,Jin Cheng,Tieling Xing,Guoqiang Chen
Polyphenols have been utilized to connect hydrophobic modifiers with certain substrates because of their adhesive properties and multiple active groups in their structure. Nevertheless, research is scarce regarding using polyphenols to enhance the superhydrophobic properties of polyamide . In this study, a plant-derived phenolic compound , p-coumaric acid (pCA), was chelated with Fe 3+ and deposited on the polyamide 66 (PA66) surface to increase its roughness. Subsequently, octadecanethiol was grafted onto pCA using a thiol-ene click chemistry reaction to create a superhydrophobic modified PA66 fabric (pCA-Fe-SH-PA66) with a static water contact angle (CA) of 154.4° and a sliding angle (SA) of 2°. The resulting pCA-Fe-SH-PA66 demonstrated excellent capabilities in self-cleaning, UV-blocking, photothermal conversion, and oil-water separation. Furthermore, pCA-Fe-SH-PA66 exhibited remarkable antibacterial ability, displaying inhibitory rates of 97.00% against E. coli and 96.15% against S. aureus , respectively. Additionally, it demonstrated noteworthy stability in a series of tests, encompassing 225 min of washing, 1000 cycles of abrasion, 48 h of UV light aging, 48 h of acid/base solution, seawater, and organic reagents immersion. Furthermore, it was demonstrated that three additional plant-derived phenolic compounds, namely 3-hydroxycinnamic acid (HA), polyatin (PD), and 4-hydroxy-3,5-dimethoxycinnamic acid (HDA), can also be effectively utilized for the multifunctional modification of PA66 fabric. The proposed modification method is mild, fast, and simple, offering a novel approach to the multifunctional modification of synthetic materials. The modified PA66 fabric holds potential in applications such as oily wastewater treatment , outdoor sportswear, tents, and other fields.
研究领域:
材料科学
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化学工程
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纺织科学
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环境科学
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生物技术
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DOI
高影响因子
危险品化学品经营许可证（带存储）