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| 1 | Controllable preparation of particles with microfluidics显示文摘This paper reviews recent development and achievements in controllable preparation of nanoparticles, micron spherical and non-spherical particles, using microfluidics. A variety of synthesis strategies are presented and compared, including single-phase and multiphase microflows. The main structures of microfluidic devices and the fundamental principles of microflows for particle preparation are summarized and identifled. The controllability of particle size, size distribution, crystal structure, morphology, physical and chemical properties, is examined in terms of the special features of microfluidic reactors. An outlook on opinions and predictions concerning the future development of powder technology with microfluidics is specially provided. | Guangsheng Luo Le Du Yujun Wang Yangcheng Lu Jianhong Xu | 2011 | Particuology2011，9，6： | 15 |
| 2 | Variation of net primary productivity and its drivers in China’s forests during 2000-2018显示文摘Background:Net primary productivity(NPP)in forests plays an important role in the global carbon cycle.However,it is not well known about the increase rate of China’s forest NPP,and there are different opinions about the key factors controlling the variability of forest NPP.Methods:This paper established a statistics-based multiple regression model to estimate forest NPP,using the observed NPP,meteorological and remote sensing data in five major forest ecosystems.The fluctuation values of NPP and environment variables were extracted to identify the key variables influencing the variation of forest NPP by correlation analysis.Results:The long-term trends and annual fluctuations of forest NPP between 2000 and 2018 were examined.The results showed a significant increase in forest NPP for all five forest ecosystems,with an average rise of 5.2 gC·m-2·year-1 over China.Over 90%of the forest area had an increasing NPP range of 0-161 gC·m-2·year-1.Forest NPP had an interannual fluctuation of 50-269 gC.m-2·year-1 for the five major forest ecosystems.The evergreen broadleaf forest had the largest fluctuation.The variability in forest NPP was caused mainly by variations in precipitation,then by temperature fluctuations.Conclusions:All five forest ecosystems in China exhibited a significant increasing NPP along with annual fluctuations evidently during 2000-2018.The variations in China’s forest NPP were controlled mainly by changes in precipitation. | Yuhe Ji Guangsheng Zhou Tianxiang Luo Yakir Dan Li Zhou Xiaomin Lv | 2020 | Forest Ecosystems2020，7，2： | 8 |
| 3 | In situ preparation of hydrophobic CaCO_3 nanoparticles in a gas-liquid microdispersion process显示文摘This study presents a novel process of in situ surface modification of CaCCh nanoparticles using a multipleorifice dispersion microreactor.CO_2/Ca(OH)_2 precipitation reaction was employed to prepare CaCO_3nanoparticles with sodium stearate surfactant.Synthesized CaCCh products were characterized by thermogravimetric analysis(TGA),infra-red(IR),X-ray diffraction(XRD),transmission electron microscopy(TEM) and Brunauer-Emmet-Teller analysis(BET).The effect of various operation parameters on nanoparticles and the dosage of sodium stearate were determined.The results showed that the preparation process could be precisely controlled with efficient mass transfer process.The particles were highly hydrophobic with a contact angle of 117 and monodisperse with an average size of 30 nm.The adsorptions of sodium stearate and calcium ion on solid particles during the in situ surface modification process were investigated. | Le Du Yujun Wang Guangsheng Luo | 2013 | Particuology2013，11，4： | 8 |
| 4 | Microfluidic technology for multiphase emulsions morphology adjustment and functional materials preparation显示文摘Multiphase emulsions could be used as templates in considerable fields such as coating, optical materials, standard particles and biomedicine. Among various emulsion forming methods, microfluidic technology, with good monodispersity, high controllability and operation simplicity, has been widely used in the preparation of multiphase emulsions with different systems. This review would focus on the basic principles of forming multiphase emulsions, the recent progress in controlling multiphase flow in microfluidics, and preparation of functional materials with microfluidics mainly by the authors' research group. We believe that the review will contribute to the readers in this prospective area very well. | XuehuiGe Hong Zhao Tao Wang Jian Chen Jianhong Xu Guangsheng Luo | 2016 | Chinese Journal of Chemical Engineering2016，24，6： | 7 |
| 5 | Preparation and ion exchange properties of egg-shell glass beads with different surface morphologies显示文摘A subcritical water treatment method was developed for preparing porous-surfaced glass beads with an egg-shell structure in a batch reactor. Based on the 'corrosion-ion-migration-recondensation' strategy, ordinary soda-lime glass beads with a diameter of about 100 m were made first to react with subcritical water to effect controlled quantity of silicate dissolution of glass by adjusting treatment time and temperature. The dissolved silicate was then made to recondense on the glass core to form different porous shell morphologies: pores, flakes and fibers. Among these, glass beads coated with fibers with surface area of 154.5 m2/g, pore volume of 0.27 cm3/g and pore size of 7.1 nm were obtained at 573 K after 2 h of treatment. The prepared porous-surfaced glass beads were then used as adsorbent for heavy metal ions, showing various ion exchange properties. Glass beads covered with fibers displayed fast kinetics and high sorption capacity because of their egg-shell structure and high surface area. More than 90% of copper ions were adsorbed within 100 min from a solution with an initial concentration of 110 mg/L at 313 K. Ion sorption capacities were 149.33, 81.33 and 42.96 mg/g respectively for Ag+, Cu2+ and Ni2+ at 313 K. A green and low-cost method was thus developed to produce egg-shell-structured porous glass with high sorption capacity. | Chun Shen Yujun Wang Jianhong Xu Yangcheng Lu Guangsheng Luo | 2012 | Particuology2012，10，3： | 6 |
| 6 | Microreaction Technology for Synthetic Chemistry显示文摘Microreaction technology as an emerging tool for synthetic chemistry has been extensively applied in academic and industrial researches. Normally, synthetic chemists used to running reactions in the classical glassware for cen turies are unfamiliar and unaccustomed to use microreaction tech no logy for routine synthetic work. This review tries to give a general introduction of the capabilities of microreaction tech no logy. | Jian Deng Jisong Zhang Kai Wang Guangsheng Luo | 2019 | Chinese Journal of Chemistry2019，37，2： | 5 |
| 7 | Recent developments in microfluidic device-based preparation, functionalization, and manipulation of nano- and micro-materials显示文摘Microfluidic systems provide a powerful platform for preparing,functionalizing,and manipulating nano-/micro-materials.In this review,we summarize the characteristics of state-of-the-art microfluidic techniques and their application to processing novel nano-/micro-materials with tunable size,shape,morphology,composition,and properties.A variety of synthesis strategies based on novel microfiuidic devices are presented and compared,including their integration with real-time monitoring,external fields,and automatic feedback control.Novel functional nano-/micro-materials with complex structures have been controllably prepared and post-processed to obtain high-quality products.Strategies for controlling and tuning physical and chemical properties are also examined in terms of the design and function of microfluidic platforms.We provide an outlook on future developments in the processing of nano-/micro-materials by microfluidic technologies. | Guangsheng Luo Le Du Yujun Wang Kai Wang | 2019 | Particuology2019，17，4： | 5 |
| 8 | Preparation and functionalization of mesoporous silica spheres as packing materials for HPLC显示文摘This paper presents the integrated results of a series of new methods for preparing mesoporous silica spheres as high-performance liquid chromatography(HPLC)packing materials.The separation performance of the mesoporous spheres materials has also been determined.Micrometer-sized silica spheres with uniform spherical morphologies and ordered mesostructures were first successfully synthesized by the method employing a water-soluble polymer-assisted assembly.Then the templates for getting ordered mesoporous materials with high-density silanol groups were removed by using hydrothermal oxidation.Finally the silica spheres were functionalized with C8 alkyl groups by surface modification under hydrothermal conditions.The resultant functionalized silica spheres were demonstrated to be excellent packing materials for HPLC. | Liming Yang Yujun Wang Guangsheng Luo Youyuan Dai | 2008 | Particuology2008，6，3： | 4 |
| 9 | Efficient synthesis of lithium rare-earth tetrafluoride nanocrystals via a continuous flow method显示文摘As an important upconversion illuminant material, LiREF4 nanocrystals were efficiently synthesized in a continuous reactor with the assistant of a new precursor solution. The employed trioctylamine solvent in the solution had a strong interaction with HF, and helped to avoid the generation of unnecessary solid components as LiF and NH4REF4 during the reaction. A silicon carbide reactor was developed to carry out the synthesis reaction, where LiYF4:Yb,Er/Ho/Tm quickly nucleated in 5 min at 300℃. The reaction time to successfully prepare 15 nm sized nanocrystals was less than 30 min, and the space-time yield of the flow synthesis method was 14.8 times that of a control group batch reaction. The prepared nanocrystals had a strong illuminant ability, which could find its use in the area of security mark printing. | Jinsong Sui Junyu Yan Kai Wang Guangsheng Luo | 2020 | Nano Research2020，13，10： | 4 |
| 10 | Simulation of the mixing process in a straight tube with sudden changed cross-section显示文摘In this work, we revised the expression of mixing intensity to describe the mixing output through a cross section in a flow system by considering heterogeneity of flow field, and carefully investigated the mixing process along a straight tube with expanding/contracting cross section by simulation method. The simulation results show that a sudden expansion of cross section has remarkable mixing intensification effect within a limited period(on the sub-second scale) or tube-length(on the millimeter scale), corresponding to the generation of considerable local vortices determined by both the flow capacity and the ratio of cross section change; a sudden contraction of cross section has instantaneous but weak mixing intensification effect; through introducing a local expansion structure with proper length, as the combination of sudden expansion and sudden contraction, their mixing intensification effects could be superposed. Besides, the rationality and importance are experimentally verified to explore the time profile of mixing intensity and carry out the vortex analysis by simulation for enhancing the selectivity of a complicated reaction system. These progresses may lead to more meaningful quantitative description of mixing process in a flow microreactor for some specific chemical processes. | Yangcheng LU Shan Zhu Kai Wang Guangsheng Luo | 2016 | Chinese Journal of Chemical Engineering2016，24，6： | 3 |
| 11 | Freestanding polypyrrole nanotube/reduced graphene oxide hybrid film as flexible scaffold for dendrite-free lithium metal anodes显示文摘Lithium metal anode is the most potential anode material for the next generation high-energy rechargeable batteries owing to its highest specific capacity and lowest redox potential.Unfortunately,the uneven deposition of Li during plating/stripping and the formation of uncontrolled Li dendrites,which might cause poor battery performance and serious safety problems,are demonstrating to be a huge challenge for its practical application.Here,we show that a flexible and free-standing film hybriding with polypyrrole(PPy) nanotubes and reduced graphene oxide(rGO) can significantly regulate the Li nucleation and deposition,and further prohibit the formation of Li dendrites,owing to the large specific surface area,rich of nitrogen functional groups and porous structures.Finally,the high Coulombic efficiency and stable Li plating/stripping cycling performance with 98% for 230 cycles at 0.5 mA cm^(-2) and more than 900 hours stable lifespan are achieved.No Li dendrites form even at a Li deposition capacity as high as4.0 mA h cm^(-2).Besides,the designed PPy/rGO hybrid anode scaffold can also drive a superior battery performance in the lithium-metal full cell applications. | Gan Luo Xiaolin Hu Wei Liu Guanjie Lu Qiannan Zhao Jie Wen Jian Liang Guangsheng Huang Bin Jiang Chaohe Xu Fusheng Pan | 2021 | Journal of Energy Chemistry2021，30，7： | 3 |
| 12 | Green synthesis and enhanced photocatalytic activity of Ce-doped TiO2 nanoparticles supported on porous glass显示文摘 | Chun Shen Kexia Pang Le Du Guangsheng Luo | 2017 | Particuology2017，15，5： | 3 |
| 13 | Synthesis of mesoporous silica microspheres by a spray-assisted carbonation microreaction method显示文摘A novel spray-assisted carbonation microreaction method for the synthesis of mesoporous silica microspheres is reported.The synthetic process comprises the preparation of a silica sol via a carbonation reaction,rapid gelation at high temperature,and subsequent rapid solvent evaporation by spray drying.The carbonation microreaction was conducted in a membrane dispersion microreactor,in the presence of sodium silicate and carbon dioxide reactants.The as-synthesized silica microspheres exhibit a uniform mesostructure,excellent dispersity,and a narrow particle size distribution,with average diameters of 1-2 μm,Brunauer-Emmett-Teller surface areas of 300-1149m2/g,and total pore volumes of 0.21-1.82 cm3/g.Relatively low concentrations of the silicate species and well-controlled silica condensation rates are responsible for the formation of the observed spherical morphology.The synthetic process is of significant practical importance as a result of using low-cost raw materials,and because of the excellent controllability and process stability displayed.Furthermore,this rapid and flexible method may be extended to the synthesis of various silica materials and their composites. | Chunli Han Yunpeng Hu Kai Wang Guangsheng Luo | 2020 | Particuology2020，18，3： | 3 |
| 14 | Kinetic study on selective extraction of HCl and H_3PO_4 in a microfluidic device显示文摘In the extraction method for preparing KH2PO4,one of the key processes is the selective extraction of HCl over H3PO4.In our work,extraction kinetic studies have been carried out in a microfluidic device with a coaxial microchannel,using the extractant of 33.3%(by volume) trioctylamine(TOA) dissolved in n-octanol,with different aqueous phases:the HCl solution,the H3PO4 solution,and H3PO4 and KCl solutions of different concentrations.The changes of the extraction efficiency of HCl and H3PO4 and the selectivity for HCl along with the residence time were investigated.We found that fast extraction kinetics could be realized in microfluidic devices,and that HCl could be extracted faster than H3PO4 due to smaller mass transfer resistance and much stronger reaction between HCl and TOA.For the extraction of H3PO4 and KCl solutions,the selectivity for HCl first increased and then decreased when TOA was in excess of H3PO4 in the initial feeds,and in contrast,always increased when H3PO4 was in excess of TOA in the initial feeds.The diverse changes of selectivity for HCl along with the residence time indicate that a dynamic control of selectivity in microfluidic devices may be important and accessible for improving the KH2PO4 conversion efficiency in extraction method. | Fang Zhao Yangcheng Lu Kai Wang Guangsheng Luo | 2016 | Chinese Journal of Chemical Engineering2016，24，2： | 2 |
| 15 | TMF-IMPAD Spectrometer | Zhu, Shengyun Luo, Qi Guo, Zhenghui Zheng, Shengnan Fan, Zhiguo Li, Anli Li, Guangsheng Wen, Shuxian Dai, Zhengyu Liu, Xiangan Wu, Xiaoguang | 1996 | Chinese journal of nuclear physics1996，，3： | 2 |
| 16 | Effects of temperature and phosphoric acid addition on the solubility of iron phosphate dihydrate in aqueous solutions显示文摘As important controlling factors for the synthesis of iron phosphate materials by liquid-phase precipitation, the solubilities of iron phosphate dihydrate were systematically measured at H_3PO_4 concentrations from 1.13 wt%to 10.7 wt%, temperature from 298.15 to 363.15 K, and atmosphere pressure in this work. The solubility was found to increase 5 orders of magnitude or more with increasing the concentration of phosphoric acid, and decrease 1 to 2 orders of magnitude with increasing the equilibrium temperature. The phosphoric acid addition and temperature were found to affect the solubility of iron phosphate dihydrate by the formation or dissociation of coordination species, which could further accelerate the phase transformation from the amorphous iron phosphate dihydrate to orthorhombic iron phosphate dehydrate by dissolution–recrystallization mechanism.The high dependences of the solubility of iron phosphate materials on H_3PO_4 concentration and temperature were also well predicted by calibration equations, which are meaningful for quantitatively understanding the precipitation process and sequential crystalline structure transformation and pursuing a rational strategy for synthesizing specific iron phosphate materials. | Tongbao Zhang Yangcheng Lu Guangsheng Luo | 2017 | Chinese Journal of Chemical Engineering2017，25，2： | 2 |
| 17 | Controllable preparation of γ-alumina nanoparticles with bimodal pore size distribution in membrane dispersion microreactor显示文摘In this paper,we present a new method for preparing γ-alumina nanoparticles with a bimodal pore size distribution by using an efficiently mixing membrane dispersion microreactor.NH4HCO3and AI2(SO4)3.18H2Owere reacted under vigorous mixing to give an ammonium aluminum carbonate hydroxide (AACH)precursor.γ-Alumina was obtained by calcination of AACH at 550℃ for 6h.The effects of NH4HCO3concentration,pH during aging,and reaction temperature were investigated.The mechanism of bimodal pore formation was clarified.The results showed that large pores (10-100nm) were mainly formed in the reactor and during aging,and small pores (0-10nm)were mainly formed during calcination.When the concentration of NH4HCO3was 1.5mol/L,the aging pH was 9.2,and the reaction temperature was 80℃,γ-alumina with a specific surface area of 504.7m^2/g and pore volume of 1.76mL/g was obtained.The average size of the large pores was about 30nm,and the average size of the small pores was about 4nm. | Lufan Yang Mingzhao Guo Fan Zhang Yu Jing Yujun Wang Guangsheng Luo | 2018 | Particuology2018，16，6： | 2 |
| 18 | Single-shot AAV-vectored vaccine against SARS-CoV-2 with fast and long-lasting immunity显示文摘Due to the insufficient long-term protection and significant efficacy reduction to new variants of current COVID-19 vaccines,the epidemic prevention and control are still challenging.Here,we employ a capsid and antigen structure engineering(CASE)strategy to manufacture an adenoassociated viral serotype 6-based vaccine(S663V-RBD),which expresses trimeric receptor binding domain(RBD)of spike protein fused with a biological adjuvant RS09.Impressively,the engineered S663V-RBD could rapidly induce a satisfactory RBD-specific IgG titer within 2 weeks and maintain the titer for more than 4 months.Compared to the licensed BBIBP-CorV(Sinopharm,China),a single-dose S663V-RBD induced more endurable and robust immune responses in mice and elicited superior neutralizing antibodies against three typical SARS-CoV-2 pseudoviruses including wild type,C.37(Lambda)and B.1.617.2(Delta).More interestingly,the intramuscular injection of S663V-RBD could overcome pre-existing immunity against the capsid.Given its effectiveness,the CASE-based S663VRBD may provide a new solution for the current and next pandemic. | Fuhua Wu Shuang Luo Yongshun Zhang Yangsen Ou Hairui Wang Zhaofei Guo Chunting He Shuting Bai Penghui He Min Jiang Xiaoyan Chen Guangsheng Du Xun Sun | 2023 | Acta Pharmaceutica Sinica B2023，13，5： | 2 |
| 19 | Reaction kinetics determination based on microfluidic technology显示文摘Microfluidic technology has been successfully applied to determine the reaction kinetics relying on its great characteristics including narrow residence time distribution,fast mixing,high mass and heat transfer rates and very low consumption of materials.In this review,the recent progresses about the reaction kinetics measured in microreactors are comprehensively organized,and the kinetic modeling thoughts,determination methods and essential kinetic regularities contained in these studies are summarized according to the reaction types involving nitration,oxidation,hydrogenation,photochemical reaction,polymerization and other reactions.Besides,the significant advances in the innovation of microplatform are also covered.The novel reactor configuration methods were established mainly to achieve rapid and efficient data collection and analysis.Finally,the advantages of microfluidic technology for the kinetic measurement are summarized,and a perspective for the future development is provided. | Zifei Yan Jiaxin Tian Chencan Du Jian Deng Guangsheng Luo | 2022 | Chinese Journal of Chemical Engineering2022，35，1： | 2 |
| 20 | Continuous, homogeneous and rapid synthesis of 4-bromo-3-methylanisole in a modular microreaction system显示文摘4-Bromo-3-methylanisole is mainly used to synthesize black fluorane dye(2-anilino-3-methyl-6-dibutylaminofluorane, ODB-2), which is one of the most important heat and pressure-sensitive dyes in the manufacture of thermal papers. Compared to the industrial heterogeneous batch process, a continuous homogeneous bromination technology in a modular microreaction system has been developed, and 4-bromo-3-methylanisole has been successfully prepared through high-selective mono-bromination of 3-methylanisole with Br2 solution in CHCl3. In optimal conditions, the content of bis-brominated byproducts can be controlled less than 0.5%,which is superior to the industrial standard with 99.5% 3-methylanisole conversion at very short residence time and mild reaction temperature. | Pei Xie Kai Wang Jian Deng Guangsheng Luo | 2020 | Chinese Journal of Chemical Engineering2020，28，8： | 2 |
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