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| 1 | Chiral assembly of achiral pseudoisocyanine with D-and L-phenylalanine显示文摘Supramolecular chirality and molecular self-assembly are important and interesting phenomena in living and non-living systems.In this work,supramolecular chirality of achiral pseudoisocyanine(PIC) J-aggregates was successfully induced by D-,L-phenylalanine(Phe) and other amino acids in NaCl solution.The chiral J-aggregates showed a characteristic,induced circular dichroism(ICD) in the visible region of J-band chromophore which depends on the absolute configuration,concentration and side groups of α-amino acids,as well as temperature.The atomic force microscopy images indicated that the J-aggregates exist in large bundles of entangled nanofibers,and the observed ICD might result from the macroscopic helical arrangement of the assemblies. | ZENG LiXi HE YuJian DAI ZhiFeng WANG Jian WANG CaiQi YANG YongGang | 2009 | Science China Chemistry2009，52，8： | 2 |
| 2 | Hydrogen- bonding-induced colorimetric detection of melamine by nonaggregation-based Au- NPs as a probe 显示文摘 | Qian Cao Hong Zhao Yujian He | 2010 | Biosensors and Bioelectronics2010，25，： | 1 |
| 3 | Distribution characteristics of holdups in a multi-stage bubble column using electrical resistance tomography显示文摘Based on the principle of chemical reaction engineering,the addition of perforated plates can improve the performance of conventional bubble column and decrease the backmixing behaviors.The distribution characteristics of gas holdup in a multi-stage bubble column embedded with five types of sieve plates and three types of tongue plates were studied using electrical resistance tomography(ERT).The effects of superficial gas velocity and the geometric design of perforated plates on the gas holdup and its radial distribution above and below the plates of the bubble column were discussed.Experimental results show ERT is suitable as an online monitoring tool to provide useful information on the hydrodynamic parameters of multi-stage bubble columns.With increasing superficial gas velocity,local gas holdup increases,and gas holdup below the plate increases with decrease of free area(%FA),hole diameters or angle of tongue plates.ERT technique facilitates noninvasive and nonintrusive visualization of cross-sectional distribution of gas holdup in a bubble column. | Haibo Jin Yicheng Lian Yujian Qin Suohe Yang Guangxiang He | 2013 | Particuology2013，11，2： | 1 |
| 4 | Highly Efficient Co-removal of Heavy Metals in Wastewater from Chemical Oxygen Demand Testing Instrument by Cysteine-functionalized Magnetic Nanoparticles显示文摘 | CAI Botai GU Pei ZENG Lixi ZHOU Ying LIU Qingju LI Xun YUAN Longfei HE Yujian | 2014 | Chemical Research in Chinese Universities2014，30，3： | 1 |
| 5 | Electrochemical sensing of melamine with 3,4-dihydroxyphenylacetie acid as recognition element 显示文摘 | CAO Qian ZHAO Hong HE Yujian | 2010 | Anal Chim Acta2010，675，1： | 1 |
| 6 | Colorimetric detection of ractopamine and salbutamol using gold nanoparticles functionalized with melamine as a probe显示文摘 | Ying Zhou Peilong Wang Xiaoou Su Hong Zhao Yujian He | 2013 | Talanta2013，，： | 1 |
| 7 | Neutron Scattering Study of Sr Substitution for Ba in YBa_(2)Cu_(3)O_(7-y)显示文摘Neutron diffraction aund inelastic scatterilug were curried out on YBa_(2)Cu_(3)O_(7-y)(r=0.5,1.0、1.25).It was coufirmed that the substitutiou of Sr for Ba in YBa_(2)Cu_(3)O_(7-y) inrcases the oxyge1n vacancies int the CuO chain.Moreuver.the sntbstittiou strengtlenx the coupling betw1ell the Ba O plane aldl the Cu O rhain,Moreoer. the crystiul stnlbility.Tlusse the ppossill.rnuscs of Te depression for Sr xilrtittril YBa_(2)Cu_(3)O_(7-y). | DING Yongfan LI Jizhou YANG Jiliaon ZHANG Baisheng KANG Jian YE Chuntang FU Qiang JIN Sheng CUI Yujian HE Aisheng HE Yiusheng | 1993 | Chinese Physics Letters1993，10，8： | 0 |
| 8 | Discussions about whether radioactive half life can be changed by mechanic motion显示文摘In this essay, some discussions and comments about the paper entitled 'Can the decay rate of 32P be changed by mechanic motion?' (Ding et al., Science in China Series B:Chemistry (Chinese version), 2008, 38(11):1035-1037) are given. It was strongly suggested that its experimental methods, data calculations and conclusion should be reconsidered. After the data were recalculated, the new results supported that the chiral mechanic motion could induce the changes of radioactive half life. | HE YuJian ZENG LiXi QI ShengChu | 2009 | Science China Chemistry2009，52，5： | 0 |
| 9 | Migration mechanism and risk assessment of perand polyfluoroalkyl substances in the Ya'Er Lake oxidation pond area,China显示文摘The migration mechanisms,sources,and environmental risks of 29 legacy and emerging perfluorinated and polyfluoroalkyl species present in an oxidation pond(Ya'Er Lake)were investigated for treating sewage based on the analysis of their occurrence and distribution.The concentration of per-and polyfluoroalkyl substances(PFAS)in pond area was between0.30 and 63.2 ng/g dw(dry weight),with the overall average concentration of 8.00 ng/g dw.Notably,the PFAS concentrations in the surface sediments near the sewage outlet in Pond-1(50.2 ng/g dw)and Pond-5(average 15.1 ng/g dw)were 1–2 orders of magnitude higher than those in other areas.In general,the legacy PFAS,i.e.,perfluorooctane sulfonic acid was considered to be the major pollutant in the polluted area,on average,accounting for 73.0%of the total concentration of PFAS pollutants.By evaluating the regional distribution of different PFAS homologs,the short-chain PFAS pollutants with lower K_(ow)were found to migrate farther in both horizontal and vertical directions.The sewage outlets in Pond-1 and Pond-5are the main pollution sources in polluted area and the emerging PFAS pollutants in Pond-5have replaced the legacy PFAS pollutants as the main pollutants.Based on positive matrix factorization analysis,three main industrial sources of PFAS pollutants in the study area were identified:protective coating,fire-fighting,and food packaging sources.Moreover,the environmental risk assessment results showed that most study areas exhibited medium environmental risk(0.01≤Risk quotient(RQ)<1),indicating that the ecological environment risks in this area need further attention. | Chang Li Huifang Zhong Jing Wu Lingyi Meng Yingjun Wang Chunyang Liao Yawei Wang Yujian He | 2024 | Journal of Environmental Sciences2024，，2： | 0 |
| 10 | Synthesis of highly-branched Au@AgPd core/shell nanoflowers for in situ SERS monitoring of catalytic reactions显示文摘Alloy and small size nanostructure s are favorable to catalytical performance,but not to surface-enhanced Raman spectroscopy(SERS) applications.Integrating SERS and catalytic activity into the nanocrystals with both alloy and small size structures is of great interest in fabrication of SERS platform to in situ monitor catalytical reaction.Herein,we report a facile method to synthesize Au@AgPd trimetallic nanoflowers(Au@AgPd NFs) with both SERS and catalytic activities,through simultaneous selective growth of Ag and Pd on Au core to form highly-branched alloy shell.These nanocrystals have the properties of small sizes,defects abundance,and highly-dispersed alloy shell which offer superior catalytic activity,while the merits of monodisperse,excellent stability,and highly-branched shell and core/alloy-shell structure promise the enhanced SERS activity.We further studied their growth mechanisms,and found that the ratio of Ag to Pd,sizes of Au core,and surfactant cetyltrimethylammonium bromide together determine this special structure.Using this as-synthesized nanocrystals,a monolayer bifunctional platform with both SERS and catalytical activity was fabricated through selfassembly at air/water interface,and applied to in situ SERS monitoring the reaction process of Pdcatalyzed hydrogenation of 4-nitrothiophenol to 4-aminothio p henol. | Yujian Lai Lijie Dong Rui Liu Shaoyu Lu Zuoliang He Wanyu Shan Fanglan Geng Yaqi Cai Jingfu Liu | 2020 | Chinese Chemical Letters2020，31，9： | 0 |
| 11 | Progress of Research on Origins of Life in China显示文摘The development of Chinese space science and technology plays a great role in promoting the researches in the field of the origin of life.With the multidisciplinary cooperation,there are fruitful achievements in this research field obtained over the past two years.This report summarizes the major progress of the basic researches about the origin of life in China during 2018–2020. | ZHAO Yufen HUA Yuejin ZHANG Hongyu HE Yujian ZHU Ting LIU Yan WU Li | 2020 | 空间科学学报2020，40，5： | 0 |
| 12 | Circular dichroism spectra of different structures formed by the oligonucleotides显示文摘Under different conditions, oligonucleotides can form several different DNA structures such as duplex, triplex and quadruplex. All these structures exhibit an obvious difference in their CD spectra. The common characteristic is that they show a negative band at 240 nm, while in the range of 260-300 nm, the spectra are different from each other. Many factors such as chain direction, sugar puckering mode, orientation of the glycosyl bond, base stacking and sequence can affect their conformation and then show diversity and complexity in their spectra. By studying and comparing these spectra, more information about their conformations can be obtained to help predict some new structures. Furthermore, the spectra can also provide a base to study their potential biological functions. | Xueguang Sun Enhua Cao Chunli Bai Yujian He Jingfen Qin | 1998 | Chinese Science Bulletin1998，43，17： | 0 |
| 13 | A review of complications of polyacrylamide hydrogel injection显示文摘Once a popular injectable filler,polyacrylamide hydrogel(PAAG)has been banned in China since 2006 due to its unclear safety and long-term complications.However,it is still being used worldwide because of its huge commercial profit,leading to emerging complications and an urgent need for standardized clinical management.This review aimed to assess the properties,safety,and complications of PAAG and treatment strategies for its removal. | Chenlu Xiong Youbai Chen Yujian Xu Weiqian Jiang Xiangye Yin Dongsheng Chen Xiaojing Gong Tian He Yang An Yan Han | 2023 | Chinese Journal Of Plastic and Reconstructive Surgery2023，5，2： | 0 |
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