Biomass-derived carbon materials are widely applied in the energy storage and conversion fields due to their rich sources,low price and environmental friendliness.Herein,a unique pumpkin-like MoPMoS_(2)@Aspergillus ni...Biomass-derived carbon materials are widely applied in the energy storage and conversion fields due to their rich sources,low price and environmental friendliness.Herein,a unique pumpkin-like MoPMoS_(2)@Aspergillus niger spore-derived N-doped carbon(SNC)composite has been prepared via a simple hydrothermal and subsequent phosphorization process.Interestingly,the resulting MoP-MoS_(2)@SNC well inherits the pristine morphology of spore carbon,similar to the natural pumpkin,with hollow interiors and uneven protrusions on the surface.The special structure allows it to have sufficient space to fully contact the electrolyte and greatly reduces the ion transport distance.The theory calculations further demonstrate that the formed MoP-MoS_(2)heterostructure can enhance the adsorption of K ions and electronic couplings.With these unique advantages,the MoP-MoS_(2)@SNC anode for potassium storage shows a high reversible capability of 286.2 mAh g&(-1) at 100 mA g^(-1) after 100 cycles and superior rate performance.The enhanced electrochemical performance is mainly related to the unique pumpkin-like morphology of SNC and the construction of MoP-MoS_(2)heterostructure,as well as their perfect coupling.This study provides a feasible design idea for developing green,low-cost,and high-performance electrode materials for next-generation energy storage.展开更多
Cultivation of an endophytic fungus Aspergillus niger EN-13 that was isolated from the inner tissue of the marine brown alga Colpomenia sinuosa resulted in the characterization of a new naphthoquinoneimine derivative,...Cultivation of an endophytic fungus Aspergillus niger EN-13 that was isolated from the inner tissue of the marine brown alga Colpomenia sinuosa resulted in the characterization of a new naphthoquinoneimine derivative, namely, 5,7-dihydroxy-2-[1-（4- methoxy-6-oxo-6H-pyran-2-yl）-2-phenylethylamino]-[ 1,4]naphthoquinone. The structure of the new compound was established on the basis of various NMR spectroscopic analyses including 2D NMR techniques, El-MS, and HR-ESI-MS. This compound displayed moderate antifungal activity.展开更多
The cDNA of soluble human tumor necrosis factor receptor I (sTNFRI) was inserted into fusion-protein expression plasmid pIGF of A. niger to construct fusion expression vector pHBC containing a KEX2 like protein proces...The cDNA of soluble human tumor necrosis factor receptor I (sTNFRI) was inserted into fusion-protein expression plasmid pIGF of A. niger to construct fusion expression vector pHBC containing a KEX2 like protein processing site designed on the fusion position. Extracellular protease-deficient strain of A. niger 3.795-1-23 was transformed with pHBC. Positive clone was estimated by Southern hybridization. SDS-PAGE for protein produced by re-combinant strain showed the distinctive expression band. Western blotting indicated that the secreted protein had immunoactivity of sTNFRI.展开更多
基金the support from the Shuguang Program supported by Shanghai Education Development Foundation and Shanghai Municipal Education Commission(18SG035)the Basic Research Program of Shanghai Municipal Government(21JC1406002)the Shanghai Engineering Research Center of Advanced Thermal Functional Materials(Shanghai Polytechnic University)。
文摘Biomass-derived carbon materials are widely applied in the energy storage and conversion fields due to their rich sources,low price and environmental friendliness.Herein,a unique pumpkin-like MoPMoS_(2)@Aspergillus niger spore-derived N-doped carbon(SNC)composite has been prepared via a simple hydrothermal and subsequent phosphorization process.Interestingly,the resulting MoP-MoS_(2)@SNC well inherits the pristine morphology of spore carbon,similar to the natural pumpkin,with hollow interiors and uneven protrusions on the surface.The special structure allows it to have sufficient space to fully contact the electrolyte and greatly reduces the ion transport distance.The theory calculations further demonstrate that the formed MoP-MoS_(2)heterostructure can enhance the adsorption of K ions and electronic couplings.With these unique advantages,the MoP-MoS_(2)@SNC anode for potassium storage shows a high reversible capability of 286.2 mAh g&(-1) at 100 mA g^(-1) after 100 cycles and superior rate performance.The enhanced electrochemical performance is mainly related to the unique pumpkin-like morphology of SNC and the construction of MoP-MoS_(2)heterostructure,as well as their perfect coupling.This study provides a feasible design idea for developing green,low-cost,and high-performance electrode materials for next-generation energy storage.
基金partially supported by the fund of Key Laboratory of Marine Drugs(0cean University of China),Ministry of Education[KLMD(0UC)2004]by the National Natural Science Foundation of China(No.30530080)+1 种基金A program supported by the Department of Science and Technology of Shandong Province(No.2006GG2205023)by the Guangdong Key Laboratory of Marine Materia Medica is also gratefully acknowledged.
文摘Cultivation of an endophytic fungus Aspergillus niger EN-13 that was isolated from the inner tissue of the marine brown alga Colpomenia sinuosa resulted in the characterization of a new naphthoquinoneimine derivative, namely, 5,7-dihydroxy-2-[1-（4- methoxy-6-oxo-6H-pyran-2-yl）-2-phenylethylamino]-[ 1,4]naphthoquinone. The structure of the new compound was established on the basis of various NMR spectroscopic analyses including 2D NMR techniques, El-MS, and HR-ESI-MS. This compound displayed moderate antifungal activity.
文摘The cDNA of soluble human tumor necrosis factor receptor I (sTNFRI) was inserted into fusion-protein expression plasmid pIGF of A. niger to construct fusion expression vector pHBC containing a KEX2 like protein processing site designed on the fusion position. Extracellular protease-deficient strain of A. niger 3.795-1-23 was transformed with pHBC. Positive clone was estimated by Southern hybridization. SDS-PAGE for protein produced by re-combinant strain showed the distinctive expression band. Western blotting indicated that the secreted protein had immunoactivity of sTNFRI.
