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| 1 | Enrichment of thermophilic and mesophilic microbial consortia for efficient degradation of corn stalk显示文摘Six different environmental samples were applied to enrich microbial consortia for efficient degradation of corn stalk,under the thermophilic and mesophilic conditions.The consortium obtained from anaerobic digested sludge under thermophilic condition(TC-Y)had the highest lignocellulose-degrading activity.The CO_2yield was 246.73 m L/g VS in23 days,meanwhile,the maximum CO_2production rate was 15.48 mL/(CO_2·d),which was28.75%and 52.27%higher than that under mesophilic condition,respectively.The peak value of cellulase activity reached 0.105 U/mL,which was at least 34.61%higher than the other groups.In addition,49.5%of corn stalk was degraded in 20 days,moreover,the degradation ratio of cellulose,hemicellulose and lignin can reach 52.76%,62.45%and42.23%,respectively.Microbial consortium structure analysis indicated that the TC-Y contained the phylum of Gemmatimonadetes,Acidobacteria,Chloroflexi,Planctomycetes,Firmicutes,and Proteobacteria.Furthermore,the Pseudoxanthomonas belonging to GammaProteobacteria might be the key bacterial group for the lignocellulose degradation.These results indicated the capability of degrading un-pretreated corn stalk and the potential for further investigation and application of TC-Y. | Jun Lu Zhiman Yang Wanying Xu Xiaoshuang Shi Rongbo Guo | 2019 | Journal of Environmental Sciences2019，31，4： | 4 |
| 2 | Protective effect of curcumin on tumor necrosis factor-alpha-induced neuronal damage in the rat hippocampus A relationship to the inhibition of neuronal Ca^(2+) influx显示文摘BACKGROUND: Previous studies of curcumin have focused mainly on its cytotoxic properties for antitumor therapy.There are few studies addressing the application of curcumin in the prevention and treatment of nervous system diseases.OBJECTIVE: To observe the protective effect of curcumin against tumor necrosis factor-alpha (TNF-α)-induced neuronal damage in the rat hippocampus and to explore the intervention effect of curcumin on Ca2+ influx following neuronal damage.DESIGN,TIME AND SETTING: A cell morphological and physiological study was performed at the Institute of Brain Research,Medical College of Jinan University,China,from December 2006 to June 2007.MATERIALS: Curcumin (Sigma,USA) and TNF-α (Sigma,USA) were used in this study.METHODS: Hippocampal neurons were isolated from one-day neonatal rats and primarily cultured for 5 days.Following this they received 1 μmol/L curcumin and 100 ng/mL TNF-α pre-treatment.Dynamic morphological changes were observed for 1 hour by inverted microscopy.At 48 hours post-treatment,static morphological characteristics of the neurons were observed using inverted microscopy.Subsequently,hippocampal neurons were primarily cultured for 7 days,after receiving 1 μmol/L curcumin and 4.5 ng/mL TNF-α pre-treatment.Intracellular free Ca2+ was measured using Fluo 3/acetoxymethyl ester.MAIN OUTCOME MEASURES: Effects of curcumin on TNF-α-induced neuronal damage and Ca2+ influx in the rat hippocampus were measured.RESULTS: Following curcumin treatment,TNF-α-induced neurons grew as normal.TNF-α induced a rapid Ca2+ influx into the neuronal cytoplasm;however,Ca2+ fluorescence intensity only slightly increased when neurons were co-perfused with curcumin and TNF-α.CONCLUSION: Curcumin has a protective effect on rat hippocampal neurons possibly by reducing the TNF-α-induced rapid Ca2+ influx into neuronal cytoplasm and by maintaining the Ca2+ homeostasis. | Luyan Guo Rongbo Tu Min Lin Jun Dong | 2010 | Neural Regeneration Research2010，5，2： | 2 |
| 3 | Two-dimensional Noble Metal Nanomaterials for Electrocatalysis显示文摘Two-dimensional noble metal nanomaterials(2D NMNs)are widely used as electrocatalyst.In recent years the researchers have focused on the svnthesis of 2D NMNs at the atomic scale,and realize the improvement of electrocatalytic performance through further structural modification to reduce the usage of noble metals.Herein,we systematically introduce the synthesis methods of 2D NMNs categorized by element type.Subsequently,the catalytic applications toward a variety of electrocatalytic reactions are described in detail including the hydrogen evolution reaction(HER),oxygen reduction reaction(ORR),oxygen evolution reaction(OER)and COz reduction reaction(CO,RR).Finally,the potential opportunities and remaining challenges in this emerging research area are proposed. | SUN Rongbo GUO Wenxin HAN Xiao HONG Xun | 2020 | Chemical Research in Chinese Universities2020，36，4： | 1 |
| 4 | Efficiency of CO2fixation by microalgae in a closed raceway pond显示文摘 | Shuwen Li Shengjun Luo Rongbo Guo | 2013 | Bioresource Technology2013，136，： | 1 |
| 5 | Phenylurea herbicides selective polymer prepared by molecular imprinting using N-(4-isopropylphenyl)-N-butyleneurea as dummy template显示文摘 | WANG Jincheng GUO Rongbo CHEN Jiping | 2005 | Anal Chim Acta2005，540，2： | 1 |
| 6 | Enhanced hydrogen production from lipid-extracted microalgal biomass residues through pretreatment显示文摘 | Zhiman Yang Rongbo Guo Xiaohui Xu Xiaolei Fan Xiaoping Li | 2010 | International Journal of Hydrogen Energy2010，，18： | 1 |
| 7 | Efficient promotion of methane hydrate formation and elimination of foam generation using fluorinated surfactants显示文摘Methane hydrate preparation is an effective method to store and transport methane.In promoters to facilitate methane hydrate formation,homogeneous surfactant solutions,sodium dodecyl sulfate(SDS)in particular,are more favorable than heterogeneous particles,thanks to their faster reaction rate,more storage capacity,and higher stability.Foaming,however,could not be avoided during hydrate dissociation with the presence of SDS.This paper investigated the ability of five fluorinated surfactants:potassium perfluorobutane sulfonate(PBS),potassium perfluorohexyl sulfonate(PHS),potassium perfluorooctane sulfonate(POS),ammonium perfluorooctane sulfonate(AOS),and tetraethylammonium perfluorooctyl sulfonate(TOS)to promote methane hydrate formation.It was found that both PBS and PHS achieve a storage capacity of 150(V/V,the volume of methane that can be stored by one volume of water)within 30 min,more than that of SDS.Cationic ions and the carbon chain length were then discussed on their effects during the formation.It was concluded that PBS,PHS,and POS produced no foam during hydrate dissociation,making them promising promoters in large-scale application. | Quan CAO Dongyan XU Huanfei XU Shengjun LUO Rongbo GUO | 2020 | Frontiers in Energy2020，14，3： | 0 |
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