资源类型

期刊论文 20

年份

2023 4

2022 2

2021 3

2020 1

2019 2

2017 2

2015 1

2011 1

2004 1

2002 1

2001 1

展开 ︾

关键词

X射线阻射性 1

三流体喷嘴喷雾干燥技术 1

优化设计 1

保护油气层 1

功能梯度材料 1

动态模拟 1

卫星 1

双光子 1

变压吸附 1

变压吸附反应器 1

可持续性 1

回弹性 1

图案化 1

基础设施 1

增材制造 1

复合镀层 1

多功能 1

多功能反应器 1

多功能团簇体填料 1

展开 ︾

检索范围：

排序： 展示方式：

Construction of sustainable, colored and multifunctional protein silk fabric using biomass riboflavin

《化学科学与工程前沿（英文）》 2023年 第17卷 第8期   页码 1131-1139 doi: 10.1007/s11705-023-2321-0

摘要： Riboflavin sodium phosphate has been confirmed as a promising biomass product derived from natural plants. In this paper, a novel method of dyeing and multifunctional modification of silk fabric by impregnation with riboflavin sodium phosphate was proposed, such that protein silk fabric can be endowed with bright yellow color and multi-functionality. The results of this paper confirmed that the pH and concentration of riboflavin sodium phosphate solution are critical factors for dyeing and multifunctional modification. Attractively, the photochromic performance was one of the most distinctive features of the modified silk fabric, and the dyed silk fabric turned into fluorescent green from original yellow under 365 nm ultraviolet lamp. Furthermore, the modified silk fabric exhibited good antibacterial properties with a high inhibition rate of 92% for Escherichia coli. Besides, the flame retardancy of silk fabric was significantly improved after modification. The damaged length of modified silk fabric with 40% owf riboflavin sodium phosphate was lower than 10.4 cm and passed the B1 classification. As revealed by the result of this paper, riboflavin sodium phosphate is sufficiently effective in serving as an eco-friendly multifunctional agent for strengthening the add-value of silk textiles.

关键词： biomass     riboflavin sodium phosphate     silk protein     multifunctional modification     flame retardant    

HTML PDF 收藏

Multifunctional heteroatom zeolites: construction and applications

《化学科学与工程前沿（英文）》 2021年 第15卷 第6期   页码 1462-1486 doi: 10.1007/s11705-021-2099-x

摘要： Multifunctional heteroatom zeolites have drawn broad attentions due to the possible synergistic effects in the catalytic reactions. Remarkable achievements have been made on the synthesis, characterization and catalytic applications of multifunctional heteroatom zeolite, while a review on this important topic is still missing. Herein, current research status of multifunctional heteroatom zeolites is briefly summarized, aiming to boost further researches. First, the synthesis strategies toward heteroatom zeolites are introduced, including the direct synthesis and postsynthesis routes; then, the spectroscopic techniques to identify the existing states of heteroatom sites and the corresponding physiochemical properties are shown and compared; finally, the catalytic applications of multifunctional heteroatom zeolites in various chemical reactions, especially in one-step tandem reactions, are discussed.

关键词： zeolite     multifunctional active sites     heteroatom     characterization     catalysis    

HTML PDF 收藏

Synthesis of nanofluids composed of deep eutectic solvents and metal-modified MCM-41 particles as multifunctional

《化学科学与工程前沿（英文）》 2023年 第17卷 第11期   页码 1776-1787 doi: 10.1007/s11705-023-2314-z

摘要： Compared with traditional hydrodesulfurization, new nonhydrodesulfurization methods have the advantage of a high removal efficiency for thiophene compounds under mild conditions. However, independent nonhydrodesulfurization technologies are faced with their own shortcomings, such as limitations of the desulfurization performance and regeneration of materials. To overcome these limitations, four nanofluids were prepared by dispersing different metal-modified MCM-41 particles in deep eutectic solvent as multifunctional promoters to develop a comprehensive desulfurization method. Based on the excellent adsorbability and high catalytic activity of the dispersed particles and the outstanding extractability of deep eutectic solvent in nanofluids, a high sulfur removal of 99.33% was achieved for model oil under mild conditions in 15 min. The nanofluids also showed excellent reusability due to their high structural stability. In addition, NF@Cu/Al-MCM-41-2.5% exhibited the best desulfurization performance among the prepared nanofluids. This result was obtained because the introduction of Al ions increased the number of acid sites and defect sites to improve the catalytic activity and adsorbability, and the best affinity of Cu/Al-MCM-41 for the deep eutectic solvent favored the reaction mass transfer. This work opens the door to the development of a comprehensive nonhydrodesulfurization method based on the design of nanofluid materials.

关键词： fuel oil desulfurization     nanofluids     catalytic ozonation    

HTML PDF 收藏

Invading target cells: multifunctional polymer conjugates as therapeutic nucleic acid carriers

Ulrich L?CHELT, Ernst WAGNER

《化学科学与工程前沿（英文）》 2011年 第5卷 第3期   页码 275-286 doi: 10.1007/s11705-011-1203-z

摘要： Polymer-based conjugates are an interesting option and challenge for the design of nano-sized drug-delivery systems, as they require advanced conjugation chemistry and precise engineering. In the case of nucleic acid therapy, non-viral carriers face several biological barriers during the delivery process, namely 1) protection of the cargo from extracellular degradation, 2) avoidance of non-specific interactions with non-targeted tissues, 3) efficient entry into the target cells, 4) intracellular trafficking to the site of action and 5) cargo release. To take on these obstacles, multifunctional conjugates can act as “smart polymers” with microenvironment-sensing dynamics to facilitate the separate delivery steps. Synthesis of defined polymer architectures with precise functionalization enables structure-activity relationships to be investigated and the integration of key functions for efficient delivery. Thus bioresponsive polymer conjugates, which are equipped with molecular devices responding to the certain microenvironments within the delivery pathway (e.g. pH, redox potential, enzymes) can be assembled. This review focuses on the modular engineering and conjugation of multifunctional polymeric structures for the utilization as “tailor-made” nucleic acid carriers.

关键词： conjugate     DNA     gene transfer     polymer     RNA     targeting    

HTML PDF 收藏

Strategies on designing multifunctional surfaces to prevent biofilm formation? ?

Yang Lu,Zhanguo Yue,Wei Wang,Zhiqiang Cao

《化学科学与工程前沿（英文）》 2015年 第9卷 第3期   页码 324-335 doi: 10.1007/s11705-015-1529-z

摘要： Bacteria adhesion and biofilm formation have raised severe problems on public health, food industry and many other areas. A variety of reagents and surface coatings have been developed to kill bacteria and/or limit their interaction with surfaces. It has also attracted many efforts to integrate different bactericidal elements together and maximize antibacterial efficiency. Herein, we review mechanisms for both passive and active approaches to resist and kill bacteria respectively, and discuss integrated strategies based on these two approaches. We also offer perspective on future research direction.

关键词： antimicrobial     surface     multifunctional    

HTML PDF 收藏

Flexible, ultrathin, and multifunctional polypyrrole/cellulose nanofiber composite films with outstanding

《化学科学与工程前沿（英文）》 2023年 第17卷 第8期   页码 1028-1037 doi: 10.1007/s11705-022-2251-2

摘要： Electrodes that combine energy storage with mechanical and photothermal performance are necessary for efficient development and use of flexible energy storage and conversion devices. In this study, the flexible, ultrathin, and multifunctional polypyrrole/cellulose nanofiber composite films were fabricated via a one-step “soak and polymerization” method. The dense sandwich structure and strong interfacial interaction endowed polypyrrole/cellulose nanofiber composite films with excellent flexibility, outstanding mechanical strength, and desired toughness. Interestingly, the polypyrrole/cellulose nanofiber composite film electrodes with quaternary amine functionalized cellulose nanofiber had the highest specific mass capacitance (392.90 F∙g–1) and specific areal capacitance (3.32 F∙cm–2) than the electrodes with unmodified and carboxyl functionalized cellulose nanofibers. Further, the polypyrrole/cellulose nanofiber composite films with sandwich structure had excellent photothermal conversion properties. This study demonstrated a feasible and versatile method for preparing of multifunctional composite films, having promising applications in various energy storage fields.

关键词： cellulose nanofiber     electrochemical     photothermal conversion     polypyrrole    

HTML PDF 收藏

Multifunctional, Wearable, and Wireless Sensing System via Thermoelectric Fabrics

Xinyang He,Jiaxin Cai,Mingyuan Liu,Xuepeng Ni,Wendi Liu,Hanyu Guo,Jianyong Yu,Liming Wang,Xiaohong Qin,

《工程（英文）》 doi: 10.1016/j.eng.2023.05.026

摘要： Flexible thermoelectric materials play an important role in smart wearables, such as wearable power generation, self-powered sensing, and personal thermal management. However, with the rapid development of Internet of Things (IoT) and artificial intelligence (AI), higher standards for comfort, multifunctionality, and sustainable operation of wearable electronics have been proposed, and it remains challenging to meet all the requirements of currently reported thermoelectric devices. Herein, we present a multifunctional, wearable, and wireless sensing system based on a thermoelectric knitted fabric with over 600 mm·s−1 air permeability and a stretchability of 120%. The device coupled with a wireless transmission system realizes self-powered monitoring of human respiration through an mobile phone application (APP). Furthermore, an integrated thermoelectric system was designed to combine photothermal conversion and passive radiative cooling, enabling the characteristics of being powered by solar-driven in-plane temperature differences and monitoring outdoor sunlight intensity through the APP. Additionally, we decoupled the complex signals of resistance and thermal voltage during deformation under solar irradiation based on the anisotropy of the knitted fabrics to enable the device to monitor and optimize the outdoor physical activity of the athlete via the APP. This novel thermoelectric fabric-based wearable and wireless sensing platform has promising applications in next-generation smart textiles.

关键词： Thermoelectric fabrics     Wearable device     Wireless     Multifunctional sensing system     Outdoor wearable signal monitoring    

HTML PDF 收藏

Graphene-reinforced metal-organic frameworks derived cobalt sulfide/carbon nanocomposites as efficient multifunctional

《化学科学与工程前沿（英文）》 2021年 第15卷 第6期   页码 1487-1499 doi: 10.1007/s11705-021-2085-3

摘要： Developing cost-effective electrocatalysts for oxygen reduction reaction (ORR), oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) is vital in energy conversion and storage applications. Herein, we report a simple method for the synthesis of graphene-reinforced CoS/C nanocomposites and the evaluation of their electrocatalytic performance for typical electrocatalytic reactions. Nanocomposites of CoS embedded in N, S co-doped porous carbon and graphene (CoS@C/Graphene) were generated via simultaneous sulfurization and carbonization of one-pot synthesized graphite oxide-ZIF-67 precursors. The obtained CoS@C/Graphene nanocomposites were characterized by X-ray diffraction, Raman spectroscopy, thermogravimetric analysis-mass spectroscopy, scanning electronic microscopy, transmission electronic microscopy, X-ray photoelectron spectroscopy and gas sorption. It is found that CoS nanoparticles homogenously dispersed in the in situ formed N, S co-doped porous carbon/graphene matrix. The CoS@C/10Graphene composite not only shows excellent electrocatalytic activity toward ORR with high onset potential of 0.89 V, four-electron pathway and superior durability of maintaining 98% of current after continuously running for around 5 h, but also exhibits good performance for OER and HER, due to the improved electrical conductivity, increased catalytic active sites and connectivity between the electrocatalytic active CoS and the carbon matrix. This work offers a new approach for the development of novel multifunctional nanocomposites for the next generation of energy conversion and storage applications.

关键词： MOF derivative     graphene     electrocatalyst     oxygen reduction reaction     oxygen evolution reaction     hydrogen evolution reaction    

HTML PDF 收藏

多功能结构设计与原位制造 Article

张岩, 张广玉, 乔菁, 李隆球

《工程（英文）》 2023年 第28卷 第9期   页码 58-68 doi: 10.1016/j.eng.2022.11.009

摘要：

多功能结构（MFS）通过多种功能融合以实现优异的综合性能，然而传统的多功能结构设计和制造方法通常缺乏质量控制，并且单一结构内集成不同材料和器件时需使用复杂装备和多种工艺，无法满足新兴产业如航天工程对多功能结构的应用要求。采用“为了制造而设计”的思想，我们利用基于分层调控原理的优化设计模型，设计出了同时包含机械承载、电气、导热和辐射屏蔽多种功能的典型结构；并且开发了一种高温原位增材制造（AM）技术，可打印各种金属丝和碳纤维增强的高熔点聚醚醚酮（PEEK）复合材料。研究结果表明，所设计的多功能结构相比同尺寸聚醚醚酮树脂基板具有更低质量，而且刚度提升了21.5%；集成的电学器件在多功能结构超出弹性变形阶段后仍然正常工作；与聚醚醚酮基板相比，多功能结构中心热源区域下方的等效导热率提高了568.0%，辐射屏蔽性能增强了27.9%；最终，我们以多功能结构为基础，研制了模块化拼装的卫星模型。这项工作不仅为高性能设计和先进制造提供了一套系统方法，并为高端装备的功能拓展和性能提升提供了重要的应用前景。

关键词： 增材制造     多功能结构     优化设计     卫星     聚醚醚酮    

HTML PDF 收藏

Erratum to: Multifunctional peptide conjugated amphiphilic cationic copolymer for enhancing ECs targeting

Xinghong Duo, Lingchuang Bai, Jun Wang, Jintang Guo, Xiangkui Ren, Shihai Xia, Wencheng Zhang, Abraham Domb, Yakai Feng

《化学科学与工程前沿（英文）》 2021年 第15卷 第1期   页码 220-220 doi: 10.1007/s11705-020-1995-9

HTML PDF 收藏

油田化学品在钻井中的应用及发展趋势

刘汝山,苏长明

《中国工程科学》 2002年 第4卷 第5期   页码 88-92

摘要：

介绍了国内外钻井液、完井液、保护油气层等用油田化学品的研究及应用的现状；提出正电性钻井液体系是今后钻井液及完井液的发展方向；油田化学品的发展趋势是：在油田化学新理论指导下，进行油田化学品分子设计、开发新型单体、合成新型聚合物及开发符合环保要求的多功能天然高分子聚合物改性产品等。

关键词： 油田化学品     钻井液和完井液     保护油气层     多功能聚合物    

HTML PDF 收藏

活塞驱动变压吸附反应器的模型化

胡鸣,周兴贵,顾峥,袁渭康

《中国工程科学》 2001年 第3卷 第12期   页码 52-57

摘要：

建立了活塞驱动的快速变压吸附反应器模型，根据气缸与床层相通时压力、浓度和流率的连续性要求，提出了模型的边界条件。以2A↔B+C为反应体系，其中C为易吸附组分，A、B为不吸附组分，利用动态模拟软件gPROMS模拟考察了反应器长度、周期长度、活塞运动速率、产品收集速率和基础压力对反应性能和分离性能的影响。

关键词： 变压吸附反应器     变压吸附     多功能反应器     动态模拟    

HTML PDF 收藏

THE ROLE OF LONG-TERM EXPERIMENTS IN VALIDATING TRAIT-BASED APPROACHES TO ACHIEVING MULTIFUNCTIONALITY IN GRASSLANDS

《农业科学与工程前沿（英文）》 2022年 第9卷 第2期   页码 187-196 doi: 10.15302/J-FASE-2021438

摘要：

Quantifying the relationships between plant functional traits and ecosystem services has been promoted as an approach to achieving multifunctional grassland systems that balance productivity with other regulating, supporting and cultural services. Establishing trade-offs and synergies between traits and services has largely relied on meta-analyses of studies from different systems and environments. This study demonstrated the value of focused studies of long-term experiments in grassland systems that measure traits and services in the same space and time to better understand the ecological constraints underlying these trade-offs and synergies. An analysis is presented that uses data from the Park Grass Experiment at Rothamsted Research on above-ground productivity, species richness and soil organic carbon stocks to quantify the relationships between these three outcomes and the power of variance in plant functional traits in explaining them. There was a trade-off between plots with high productivity, nitrogen inputs and soil organic carbon and plots with high species richness that was explained by a functional gradient of traits that are indicative of contrasting strategies of resource acquisition of resource conservation. Examples were identified of using functional traits to identify opportunities for mitigating these trade-offs and moving toward more multifunctional systems.

关键词： multifunctional grassland systems / Park Grass Experiment / soil organic carbon / ecosystem service    

HTML PDF 收藏

一种采用三流体喷嘴喷雾干燥技术高效构筑齿科修复用多功能团簇体填料的通用策略 Article

杨丹蕾, 王丹, 牛昊, 王瑞莉, 刘梅, 章非敏, 王洁欣, 朱美芳

《工程（英文）》 2022年 第8卷 第1期   页码 138-147 doi: 10.1016/j.eng.2021.08.001

摘要：

齿科复合树脂对多功能填料有很高的要求。本研究首次采用配备三流体喷嘴的喷雾干燥设备构筑由不同功能纳米颗粒组成的高性能复合纳米颗粒团簇体，并将其作为填料应用于齿科修复。三流体喷嘴的应用可以有效避免喷雾干燥前需将带有相反电荷的纳米粒子混合而发生的团聚现象，从而构筑形貌规则的复合纳米颗粒团簇体填料。对于SiO2-ZrO2二元体系，尽管引入了ZrO2纳米颗粒，采用三流体喷嘴构筑的SiO2-ZrO2复合团簇体可以使复合树脂保持优异的力学性能[弯曲强度、弯曲模量、压缩强度和硬度分别为(133.3 ± 4.7) MPa、(8.8 ± 0.5) GPa、(371.1 ± 13.3) MPa和(64.5 ± 0.7) HV]，但使用二流体喷嘴构筑的SiO2-ZrO2复合团簇体填充所得复合树脂的力学性能显著下降。此外，对SiO2-ZrO2复合团簇体填料进行热处理后再进行填充，能够显著提高复合树脂的力学性能和X射线阻射性。含有10 wt.%以上ZrO2纳米颗粒的复合树脂可以满足其对X射线阻射性的要求。更重要的是，该方法可以推广到三元或四元体系。填充了SiO2-ZrO2-ZnO 复合团簇体填料（三者质量比为56∶10∶4）的复合树脂，除了具有良好的力学性能和X射线阻射性外，还展现出高的抗菌活性（抗菌率> 99%）。因此，采用三流体喷嘴的喷雾干燥技术在高效构筑多功能团簇体填料方面具有巨大的潜力。

关键词： 多功能团簇体填料     三流体喷嘴喷雾干燥技术     机械性能     抗菌性能     X射线阻射性     齿科复合树脂    

HTML PDF 收藏

Multifunctional peptide conjugated amphiphilic cationic copolymer for enhancing ECs targeting, penetrating

Xinghong Duo, Lingchuang Bai, Jun Wang, Jintang Guo, Xiangkui Ren, Shihai Xia, Wencheng Zhang, Abraham Domb, Yakai Feng

《化学科学与工程前沿（英文）》 2020年 第14卷 第5期   页码 889-901 doi: 10.1007/s11705-020-1919-8

摘要： Gene therapy has drawn great attention in the treatments of many diseases, especially for cardiovascular diseases. However, the development of gene carriers with low cytotoxicity and multitargeting function is still a challenge. Herein, the multitargeting REDV-G-TAT-G-NLS peptide was conjugated to amphiphilic cationic copolymer poly( -caprolactone-co-3(S)-methyl-morpholine-2,5-dione)- -polyethyleneimine (PCLMD- -PEI) via a heterobifunctional orthopyridyl disulfide-poly(ethylene glycol)- -hydroxysuccinimide (OPSS-PEG-NHS) linker to prepare PCLMD- -PEI-PEG-REDV-G-TAT-G-NLS copolymers with the aim to develop the gene carriers with low cytotoxicity and high transfection efficiency. The multitargeting micelles were prepared from PCLMD- -PEI-PEG-REDV-G-TAT-G-NLS copolymers by self-assembly method and used to load pEGFP-ZNF580 plasmids (pDNA) to form gene complexes for enhancing the proliferation and migration of endothelial cells (ECs). The loading pDNA capacity was proved by agarose gel electrophoresis assay. These multitargeting gene complexes exhibited low cytotoxicity by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay. The high internalization efficiency of these gene complexes was confirmed by flow cytometry. The results of transfection demonstrated that these multitargeting gene complexes possessed relatively high transfection efficiency. The rapid migration of ECs transfected by these gene complexes was verified by wound healing assay. Owing to ECs-targeting ability, cell-penetrating ability and nuclear targeting capacity of REDV-G-TAT-G-NLS peptide, the multitargeting polycationic gene carrier with low cytotoxicity and high transfection efficiency has great potential in gene therapy.

关键词： gene carriers     multitargeting function     ECs     transfection efficiency    

HTML PDF 收藏

标题 作者 时间 类型 操作

Construction of sustainable, colored and multifunctional protein silk fabric using biomass riboflavin

期刊论文

Multifunctional heteroatom zeolites: construction and applications

期刊论文

Synthesis of nanofluids composed of deep eutectic solvents and metal-modified MCM-41 particles as multifunctional

期刊论文

Invading target cells: multifunctional polymer conjugates as therapeutic nucleic acid carriers

Ulrich L?CHELT, Ernst WAGNER

期刊论文

Strategies on designing multifunctional surfaces to prevent biofilm formation? ?

Yang Lu,Zhanguo Yue,Wei Wang,Zhiqiang Cao

期刊论文

Flexible, ultrathin, and multifunctional polypyrrole/cellulose nanofiber composite films with outstanding

期刊论文

Multifunctional, Wearable, and Wireless Sensing System via Thermoelectric Fabrics

Xinyang He,Jiaxin Cai,Mingyuan Liu,Xuepeng Ni,Wendi Liu,Hanyu Guo,Jianyong Yu,Liming Wang,Xiaohong Qin,

期刊论文

Graphene-reinforced metal-organic frameworks derived cobalt sulfide/carbon nanocomposites as efficient multifunctional

期刊论文

多功能结构设计与原位制造

张岩, 张广玉, 乔菁, 李隆球

期刊论文

Erratum to: Multifunctional peptide conjugated amphiphilic cationic copolymer for enhancing ECs targeting

Xinghong Duo, Lingchuang Bai, Jun Wang, Jintang Guo, Xiangkui Ren, Shihai Xia, Wencheng Zhang, Abraham Domb, Yakai Feng

期刊论文

油田化学品在钻井中的应用及发展趋势

刘汝山,苏长明

期刊论文

活塞驱动变压吸附反应器的模型化

胡鸣,周兴贵,顾峥,袁渭康

期刊论文

THE ROLE OF LONG-TERM EXPERIMENTS IN VALIDATING TRAIT-BASED APPROACHES TO ACHIEVING MULTIFUNCTIONALITY IN GRASSLANDS

期刊论文

一种采用三流体喷嘴喷雾干燥技术高效构筑齿科修复用多功能团簇体填料的通用策略

杨丹蕾, 王丹, 牛昊, 王瑞莉, 刘梅, 章非敏, 王洁欣, 朱美芳

期刊论文

Multifunctional peptide conjugated amphiphilic cationic copolymer for enhancing ECs targeting, penetrating

Xinghong Duo, Lingchuang Bai, Jun Wang, Jintang Guo, Xiangkui Ren, Shihai Xia, Wencheng Zhang, Abraham Domb, Yakai Feng

期刊论文