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| 1 | Microstructures and Properties of Al-Zn-Mg-Cu-Zr Alloys with Minor Scandium显示文摘The microstructures of Al-Zn-Mg-Cu-Zr alloys with minor Sc were studied by using optical microscope(OM), scanning electron microscope (SEM) and transmission electron microscope(TEM). The tensile mechanical properties and electric conductivity of the studied alloys under different treatment conditions were tested. The results show that adding minor Sc can greatly fines the grain size of the Al-Zn-Mg-Cu-Zr alloy ingots and obviously improves the tensile properties and electric conductivity of the alloys. The strengthening mechanism is considered as fine grain strengthening, sub-structure strengthening and dispersion strengthening by Al3(Sc, Zr). After strengthening solution and T6, the tensile strength of Al-9.0Zn-2.5Mg-1.2Cu-0.15Zr-0.12Sc and Al-9.5Zn-2.5Mg-1.2Cu-0.15Zr-0.12Sc are 829.4, 818.6 MPa respectively. | Dai Xiaoyuan Xia Changqing Li Yangyong Sun Zhenqi | 2006 | Journal of Rare Earths2006，24，5： | 3 |
| 2 | Crosslinking and functionalization of acellular patches via the self-assembly of copper@tea polyphenol nanoparticles显示文摘Decellularization is a promising technique to produce natural scaffolds for tissue engineering applications.However,non-crosslinked natural scaffolds disfavor application in cardiovascular surgery due to poor biomechanics and rapid degradation.Herein,we proposed a green strategy to crosslink and functionalize acellular scaffolds via the self-assembly of copper@tea polyphenol nanoparticles(Cu@TP NPs),and the resultant nanocomposite acellular scaffolds were named as Cu@TP-dBPs.The crosslinking degree,biomechanics,denaturation temperature and resistance to enzymatic degradation of Cu@TP-dBPs were comparable to those of glutaraldehyde crosslinked decellularized bovine pericardias(Glut-dBPs).Furthermore,Cu@TP-dBPs were biocompatible and had abilities to inhibit bacterial growth and promote the formation of capillary-like networks.Subcutaneous implantation models demonstrated that Cu@TP-dBPs were free of calcification and allowed for host cell infiltration at Day 21.Cardiac patch graft models confirmed that Cu@TP-dBP patches showed improved ingrowth of functional blood vessels and remodeling of extracellular matrix at Day 60.These results suggested that Cu@TP-dBPs not only had comparable biomechanics and biostability to Glut-dBPs,but also had several advantages over Glut-dBPs in terms of anticalcification,remodeling and integration capabilities.Particularly,they were functional patches possessing antibacterial and proangiogenic activities.Thesematerial properties and biological functionsmade Cu@TP-dBPs a promising functional acellular patch for cardiovascular applications. | Qin Li Yuan Gao Jiajun Zhang Yangfeng Tang Yangyong Sun Lujia Wu Hao Wu Meifang Shen Xiaohong Liu Lin Han Zhiyun Xu | 2022 | Regenerative Biomaterials2022，9，1： | 1 |
| 3 | Stable epidermal electronic device with strain isolation induced by in situ Joule heating显示文摘Epidermal electronics play increasingly important roles in human-machine intetfaces.However,their efficient fabrication while maintaining device stability and reliability remains an unresolved challenge.Here,a facile in situ Joule heating method is proposed for fabricating stable epidermal electronics on a polyvinyl alcohol(PVA)substrate.Benefiting from the precise control of heating locations,the crystallization and enhanced rigidity of PVA are restricted to desired areas,leading to strain isolation of the active regions.As a result,the electronic device can be conformably attached to skin while showing negligible degradation in device performance during deformation.Based on this method,a flexible surface electromyography(sEMG)sensor with outstanding stability and highly comfortable wearability is demonstrated,showing high accuracy(91.83%)for human hand gesture recognition.These results imply that the fabrication method proposed in this research is a facile and reliable approach for the fabrication of epidermal electronics. | Zihao Wang Qifeng Lu Yizhang Xia Simin Feng Yixiang Shi Shuqi Wang Xianqing Yang Yangyong Zhao Fuqin Sun Tie Li Ting Zhang | 2021 | Microsystems & Nanoengineering2021，7，4： | 0 |
| 4 | Map-based cloning and CRISPR/Cas9-based editing uncover BoNA1 as the causal gene for the no-anthocyanin-accumulation phenotype in curly kale (Brassica oleracea var. sabellica)显示文摘Brassica oleracea comprises several important vegetable and ornamental crops,including curly kale,ornamental kale,cabbage,broccoli,and others.The accumulation of anthocyanins,important secondary metabolites valuable to human health,in these plants varies widely and is responsible for their pink to dark purple colors.Some curly kale varieties lack anthocyanins,making these plants completely green.The genetic basis of this trait is still unknown.We crossed the curly kale inbred line BK2019(without anthocyanins)with the cabbage inbred line YL1(with anthocyanins)and the Chinese kale inbred line TO1000(with anthocyanins)to generate segregating populations.The no-anthocyanin trait was genetically controlled by a recessive gene,bona1.We generated a linkage map and mapped bona1 to a 256-kb interval on C09.We identified one candidate gene,Bo9g058630,in the target genomic region;this gene is homologous to AT5G42800,which encodes a dihydroflavonol-4-reductase-like(DFR-like)protein in Arabidopsis.In BK2019,a 1-bp insertion was observed in the second exon of Bo9g058630 and directly produced a stop codon.To verify the candidate gene function,CRISPR/Cas9 gene editing technology was applied to knock out Bo9g058630.We generated three bona1 mutants,two of which were completely green with no anthocyanins,confirming that Bo9g058630 corresponds to BoNA1.Different insertion/deletion mutations in BoNA1 exons were found in all six of the other no-anthocyanin kale varieties examined,supporting that independent disruption of BoNA1 resulted in no-anthocyanin varieties of B.oleracea.This study improves the understanding of the regulation mechanism of anthocyanin accumulation in B.oleracea subspecies. | Kaiwen Yuan Xinyu Zhao Wenru Sun Limei Yang Yangyong Zhang Yong Wang Jialei Ji Fengqing Han Zhiyuan Fang Honghao Lv | 2023 | Horticulture Research2023，10，8： | 0 |
| 5 | Strategies for Scalable Gas-Phase Preparation of Free-Standing Graphene显示文摘The preparation of graphene with high quality serves as a prerequisite for its usage.Traditional methods of graphene production,represented by liquid-phase exfoliation and chemical vapor deposition,either sacrifice the quality and purity of graphene or are limited by the substrate and catalyst.Developing simple and scalable preparation methods of high-quality and high-purity graphene remains a big challenge.Herein,we have reviewed the gas-phase methods including carbonization,combustion,arc discharge,and atmospheric plasma for scalable preparation of free-standing graphene,which are catalyst-,substrate-,solvent-free,and without the need for complex post-treatment methods.The obtained graphene exhibits characteristics of high quality and high purity.Moreover,applications of free-standing graphene were also summarized.Finally,perspectives on opportunities and challenges of free-standing graphene have been discussed. | Yangyong Sun Jin Zhang | 2021 | CCS Chemistry2021，3，4： | 0 |
| 6 | Preliminary Study of the Characteristics of Several Glossy Cabbage(Brassica oleracea var. capitata L.) Mutants显示文摘To determine the characteristics and potential practical applications of glossy cabbage(Brassica oleracea var. capitata L.) mutants, five different glossy mutants were studied. The amount of epicuticular wax covering the mutant leaves was only approximately 30% that of the wild-type(WT) leaves. The wax crystals of WT plants were columnar and linear, while they were granular and rod-shaped in the mutants. Additionally, in WT cabbage, the primary wax components were alkanes, alcohols, fatty acids, ketones, and aldehydes. There was a significant decrease in the abundance of alkanes and ketones in the wax of the mutants. The glossy-green trait of the mutants may be the result of an inhibited alkane-forming pathway. Higher rates of chlorophyll leaching and water loss demonstrate that the mutant leaves were more permeable and sensitive to drought stress than the WT leaves. Growth curve results indicated that the growth rate of mutant-1 and mutant-3 was slower than that of the corresponding WT cabbage, resulting in shorter plants. However, the growth rate of mutant-2 was not influenced by the lack of coating wax. An investigation of the agronomic traits and heterosis of the glossy cabbage mutants indicated that all five mutants had glossy-green leaves, which was a favorable characteristic. The F1 plants derived from crosses involving mutant-2 exhibited obvious heterosis, suggesting the observed glossy-green trait is controlled by a dominant gene. Therefore, mutant-2 may be useful as a source of genetic material for future cabbage breeding experiments. | TANG Jun LIU Dongming LIU Zezhou YANG Limei FANG Zhiyuan LIU Yumei ZHUANG Mu ZHANG Yangyong Lü Honghao YI Dengxia SUN Peitian | 2015 | Horticultural Plant Journal2015，1，2： | 0 |
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