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| 1 | Three-dimensional supramolecular architecture based on 4,4'-methylene-bis(benzenamine) and aromatic carboxylic acid guests:Synthons cooperation,robust motifs and structural diversity显示文摘The two-component solid forms involving 4,4'-methylene-bis(benzenamine) included both salts and co-crystals,while 4,4'methylene-bis(benzenamine) crystallized exclusively as a salt,in agreement with the differences in the pK a values.Many of the crystal structures displayed either the neutral or the ionic form of the carboxylic acid-amino heterosynthon,and the similarity in crystal structures between the neutral and the ionized molecules makes the visual distinction between a salt and co-crystal dependent on the experimental location of the acidic proton.A variety of supramolecular hydrogen bonded motifs involving interactions between the aza molecules and carboxylic acid groups are observed rather than just the O-H···N/O-H···O motif.The motifs are identical in all the two compounds analyzed showing the robustness of these supramolecular synthons.In all adducts,recognition between the constituents is established through either N-H···O and/or O-H···O/O-H···N pairwise hydrogen bonds.In all adducts,COOH functional groups available on 1 and 2 interact with the N-donor compounds.The COOH moieties in 1 forms only single N-H···O hydrogen bonds,whereas in 2,it forms pairwise O-H···N/N-H···O hydrogen bonds.The supramolecular architectures are elegant and simple,with stacking of networks in 2,but a rather complex network with a threefold interpenetration pattern was found in 1.Thermal stability of these compounds has been investigated by thermogravimetric analysis(TGA) of mass loss. | WANG Lei ZHAO Lei LIU Meng LIU FaQian XIAO Qiang HU ZhiQiang | 2012 | Science China Chemistry2012,55,12: | 3 |
| 2 | Spectroscopic,viscositic and electrochemical studies of DNA interaction with a novel mixed-ligand complex of nickel (I|) that incorporates l-methylimidazole and thiocyanate groups显示文摘 | WANG Qingxiang JIAO Kui LIU Faqian | 2006 | Journal of Biochemical and Biophysical Methods2006,70,3: | 1 |
| 3 | Effects of Seed Soaking with Paclobutrazol on Tillering and Physio-logical Characteristics of Sugarcane Seedlings显示文摘In order to study the effects of seed soaking with Paclobutrazol( PP333) on the tillering and physiological characteristics of sugarcane seedlings,sugar cane variety ROC22 was used as experimental material. The effects of seed soaking with different concentrations of PP333 were studied. The tiller number and growth of sugarcane were surveyed at the 6-leaf stage,the physiological indicators such as chlorophyll content,soluble protein content,proline content and peroxidase activity were measured at the 2-leaf,4-leaf,and 6-leaf stages. The results showed that the seed soaking with PP333 can effectively improve the tillering of sugarcane seedlings. The suitable concentration for the tillering of sugarcane and the growth and development of sugarcane was of 50 mg/L; the seed soaking with PP333 significantly increased the chlorophyll,soluble protein,proline,and peroxidase activity of leaves of sugarcane seedlings; the content of chlorophyll and soluble protein in leaves of sugarcane seedlings treated with 90 mg/L PP333 was the highest,and the proline content and peroxidase activity of sugarcane treated with 50 mg/L PP333 were the highest. | Junxian LIU Song LI Fang TAN Xin LIU Yibo HE Kaichao WU Faqian XIONG Limin LIU | 2017 | Asian Agricultural Research2017,9,1: | 1 |
| 4 | Changes of psychological stress state and the effect of acupuncture intervention in armed anti-terrorism policemen显示文摘 | Xu jianyan wang faqian liu qing an | 2004 | World Jacupuncture Moxibustion2004,14,3: | 1 |
| 5 | Investigation on inhibition behavior of S-triazole-triazole derivatives in acidic solution 显示文摘 | Weihua Li a Xia Zhao Faqian Liu Baorong Hou | 2008 | Corrosion Science2008,50,: | 1 |
| 6 | Axi-symmetric active earth pressure for layered backfills obtained by the slip line method显示文摘 | LIU Faqian WANG Jianhua ZHANG Lu | 2008 | Journal of Shanghai Jiaotong University2008,13,15: | 1 |
| 7 | Molecular characterization of a microbial consortium involved in methane oxidation coupled to denitrification under micro‐aerobic conditions显示文摘 | Jingjing Liu Faqian Sun Liang Wang Xi Ju Weixiang Wu Yingxu Chen | 2014 | Microbial Biotechnology2014,,1: | 1 |
| 8 | Molecular Marker Techniques Using Single Primers and Their Advances显示文摘Molecular marker techniques have been widely applied in the fields of genetic diversity analysis,germplasm resources identification,molecular fingerprint and genetic linkage map construction,QTL mapping and molecular assisted breeding.On the basis of stating the concept of molecular marker techniques based on single primer amplification reactions,this study focused on the sorting and induction of single-primer molecular marker techniques,and expounded their derivative development.Finally,the application prospect and future expectation of single-primer molecular marker techniques were described in detail.The purpose of this study was to clarify the types of molecular marker techniques based on single primer amplification reactions,so that researchers can quickly and conveniently select molecular marker techniques according to their own specific scientific research conditions. | Junxian LIU Jing LIU Jing JIANG Zhuqiang HAN Xiumei TANG Lihang QIU Ruichun ZHONG Liangqiong HE Haining WU Zhipeng HUANG Ronghua TANG Faqian XIONG | 2021 | Agricultural Biotechnology2021,10,2: | 0 |
| 9 | A Non-toxic and Efficient Method for Extracting DNA and RNA from Peanut显示文摘[Objectives]To establish a non-toxic and efficient method for extracting DNA and total RNA from peanuts and laying a solid foundation for the molecular biology study of peanuts.[Methods]Based on the principle and method of purifying nucleic acids by silica gel adsorption at high salt and low pH condition,a non-toxic and efficient method to extract peanut DNA and total RNA using cetyltrimethyl ammonium bromide(CTAB)extraction solution was designed.The quality and purity of nucleic acids were detected by agarose gel electrophoresis and nucleic acids protein analyzer,respectively.The quality of DNA was further verified by enzyme digestion and PCR amplification using molecular marker techniques.The quality of total RNA was further verified by reverse transcription(RT)-PCR of actin gene and cDNA-SCoT gene differential display technique.[Results]The agarose gel electrophoresis test showed that the peanut DNA extracted by a low-toxic and effective method is free of contamination and degradation.Through the detection by the nucleic acid protein analyzer,the DNA concentration,yield,A260/A280 and A260/A230 of 5 peanut varieties were 419.6-498.2 ng/μL,20.98-24.91μg/g,1.89-1.96 and 2.03-2.28,respectively.The DNA was of high quality and can be completely digested by EcoRI restriction enzymes,and also can be used for SCoT and SRAP molecular marker technology analysis.The RNA extracted from different tissues of peanuts showed no visible DNA bands by non-denaturing agarose gel electrophoresis.The separated 28S bands were brighter than 18S.The ratio of A260/A280 and A260/A230 showed that the RNA quality was good and can be used for reverse transcription,RT-PCR of actin gene and amplification of cDNA-SCoT gene differential display technique.[Conclusions]This experiment established a low-toxic and effective method for extracting DNA and total RNA from peanuts.Compared with traditional methods,this method is more time-saving and cheaper than commercial kits.The most important point is that this method does not use toxic reagents such as phenol,chloroform and isopropanol.Thus,it is expected to be widely applied in molecular biology research. | Jing LIU Congcong WANG Jing JIANG Zhuqiang HAN Xiumei TANG Lihang QIU Liangqiong HE Ruichun ZHONG Zhipeng HUANG Haining WU Ronghua TANG Junxian LIU Faqian XIONG | 2021 | Asian Agricultural Research2021,13,1: | 0 |
| 10 | Heterometallic copper(Ⅱ) vanadates: synthesis, crystal structures and third-order nonlinear optical properties显示文摘Three polymeric heterometallic clusters with 1D, 2D, and 3D frameworks, constructed from a cyclic vanadate {V4O12}4-building block and three geometric constraint ligands, were synthesized by a one-pot self-assembly reaction. Z-scan experiments demonstrated that all the three cluster polymers have large hyperpolarizability γ values. TD-DFT calculations afforded insight into the electronic transitions and spectral characterization of these novel NLO molecular materials. | LIU FaQian WANG Lei GUO JiXi LI WeiHua LI ChaoQin JIN YanLing LI RongXun JIAN FangFang | 2014 | Science China Chemistry2014,57,9: | 0 |
| 11 | Effects of Seed Soaking with Paclobutrazol on Early Tillering and Endogenous Hormone Contents of Sugarcane Seedlings显示文摘[Objective] The paper was to explore the effect of seed soaking with paclobutrazol( PP333) on early tillering and endogenous hormone content of sugarcane seedlings.[Method] With the sugarcane variety ROC22 as the experimental material,seeds were soaked in different concentrations of PP333. The number and growth of tiller were investigated,and the contents of endogenous hormones IAA,CTK,ABA and GA3 at two-leaf,four-leaf and six-leaf stages of sugarcane seedlings were measured,to study the effects of seed soaking with PP333 on early tillering and endogenous hormone contents of sugarcane seedlings.[Result] Seed soaking with PP333 could effectively improve and advance tillering occurrence of sugarcane seedlings. The suitable PP333 concentration for sugarcane tillering occurrence,growth and development was 50 mg/L. Seed soaking with PP333 significantly increased the CTK and ABA contents in leaves of sugarcane seedlings,and decreased IAA and GA3 contents. [Conclusion]The paper will provide a theoretical basis for application of PP333 in sugarcane production. | Liu Junxian Li Song Tan Fang Xiong Faqian Wang Xiaoman Guo Wenchan Liu Xin He Yibo Wu Kaichao Liu Limin Liu Hongjian Yu Kunxing Dan Ming Lu Manman | 2017 | Plant Diseases and Pests2017,8,1: | 0 |