Synthesis of crown ether and cyclam capped beta cyclodextrin bonded silica particles and their application as chiral stationary phases in liquid chromatography

... the Synthesis of Bonded Chiral Stationary Phases for Liquid Chromatography 1.3.1 Types of Chiral Stationary Phases for Liquid Chromatography 1.3.2 Preparation of β -Cyclodextrin Type of Chiral Stationary ... with Crown Ether- capped β-CD -bonded Phases and Cyclam- capped β-CDbonded Phases 124 5.4 Concluding Remarks 128 5.5 References 129 CHAPTER APPLICATION OF CROWN ETHER- CAPPED CYCLODEXTRIN- BONDED PARTICLES ... bromide, and finally reacted with several kinds of amine-containing crown ethers and cyclams to form new types of crown ether/ cylcam -capped β-CDbonded phases [102,103] It is found that crown ether/ cyclam- capped...

Báo cáo khoa học:The principle of flux minimization and its application to estimate stationary fluxes in metabolic networks docx

... case of the more general principle of flux minimization It has to be noted, furthermore, that minimization of fluxes in a metabolic system is closely linked to minimization of enzyme levels, because ... protein, protein interactions, enzymes, metabolites) can be used to build up mathematical models of the gene-regulatory, signal-transducing and metabolic networks of a cell and to integrate them into ... given total flux is obviously equivalent to maintaining a given rate of biomass production at a minimum of the total flux Insofar, the principle of maximal biomass production is a special case of...

Báo cáo hóa học: " Ultra-fast Microwave Synthesis of ZnO Nanowires and their Dynamic Response Toward Hydrogen Gas" docx

... exploration on the electrical properties of ZnO nanowires and their doping effect on the gas sensor response are underway Fig a Response of a gas sensor made of ZnO nanowires at 200 °C to H2 gas at different ... the growth of ZnO nanowires: the formation of crystalline nuclei and axial growth of ZnO nuclei [17] The formation of nuclei depends on experimental parameters We used swift microwave synthesis ... for ZnO vapors, and thus the nanowires were most likely grown under the control of ZnO crystal growth habit With the increase of reaction time and temperature, substantial quantity of ZnO nanowires...

Synthesis of superparamagnetic nanostructures and their magnetic resonance imaging applications

... SYNTHESIS OF SUPERPARMAGNETIC NANOSTRUCTURES AND THEIR MAGNETIC RESONANCE IMAGING APPLICATIONS CHOO SHI GUANG, EUGENE (B APPL SCI., HONS), NUS A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF ... Study of Magnetic Nanostructures for Off -Resonance MR Spectroscopic Imaging 127 6.1 Motivations and Design of Experiment 127 6.2 Preparation and Characterization of Manganese ... image of IONC-b5 (Inset: SAED ring patterns of IONC-b5); (h) XRD profile of IONC-b5; and (i) VSM profiles of core SPION-7nm (∆) and IONC-b5 (□) (Page 96) Figure 5-3: (a) M(H) curves of SPION-4nm and...

Synthesis of functional nanocomposites and their bio imaging applications

... SYNTHESIS OF FUNCTIONAL NANOCOMPOSITES AND THEIR BIO- IMAGING APPLICATIONS SHENG YANG (B Eng., Nanjing Univ of Aeronautics and Astronautics) A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY ... magnetic and optical properties, as well as the performances on the in vitro bio- imaging applications of the functional nanocomposites To realize the satisfied performance and uniformity of the nanocomposites, ... Illustration of band structure of inorganic semiconductor as bulk material, nanocrystal and atom (b) Schematic depiction of band diagram of QDs and corresponding electron transition between CB and VB...

Synthesis and biological evaluation of natural products and their analogs as new cancer chemotherapeutic agents

... SYNTHESIS AND BIOLOGICAL EVALUATION OF NATURAL PRODUCTS AND THEIR ANALOGS AS NEW CANCER CHEMOTHERAPEUTIC AGENTS FANG ZHANXIONG (B.Sc.(Hons.) NUS) A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF ... production of a large number of analogs with the basic template.56 Epothilone D has shown to be at least as cytotoxic as paclitaxel against a range of cancer cell lines and one of 15 the analogs has ... as anticancer agents due to their high selectivity against A549 cells In Chapter 3, the synthesis of lignan natural products as potential anti-tumor agents was described After the synthesis of...

Synthesis of ionic liquids and their applications in capillary electrophoresis

... SYNTHESIS OF IONIC LIQUIDS AND THEIR APPLICATIONS IN CAPILLARY ELECTROPHORESIS QIN WEIDONG (M Eng., CISRI) A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY DEPARTMENT OF CHEMISTRY ... on the synthesis of 1,3-dialkylimidazolium based ionic liquids (ILs) and methods development, optimization and applications of these materials in capillary electrophoresis (CE) A series of ILs ... direction of anion, cation and EOF in a fused silica capillary The magnitude of the EOF depends on the surface concentration of silanol groups and on their degree of dissociation The latter increases...

ENANTIOSEPARATION OF CHIRAL DRUGS IN LIQUID CHROMATOGRAPHY WITH ANTIBIOTIC CAPPED MACROCYCLE BONDED SILICA PARTICLES AS CHIRAL STATIONARY PHASES

... classification of chromatography is made in terms of the physical state of phases employed during separation When the mobile phase is a gas, this kind of separation techniques is known as gas chromatography ... and Evaluation of (Rifamycin-Cyclofructan-6)-2-Hydroxypropoxysilyl appended Silica Particles as Chiral Stationary Phases for High Performance Liquid Chromatography, 8th Singapore International ... antibiotic- capped macrocycle- bonded silica particles as CSPs in high-performance liquid chromatography (HPLC) and capillary electrochromatography (CEC) for enantioseparation of chiral drugs Those...

Study in the preparation of poly (4 vinylpyridine) based nanoparticles and their application as an effective adsorbent for the recovery of palladium from aqueous solutions

... around and branch out from the central theme of the doctoral research project, i.e the preparation and use of P4VP -based nanoadsorbents for palladium adsorption, as well as their separation and recovery ... nanoparticles The physical properties of the P4VP -based nanoparticles will be examined and their adsorption performance will be investigated Further improvement in the properties and performances ... conducted for concentrating and eluting palladium from the P4VP nanoparticles showed the effectiveness for their use as a nanoadsorbent that can find great potentials in other environmental applications...

Aggregate and spatial distributions of DNA palindromes and their applications to replication origins prediction in some viral genomes

... the palindrome provides a binding site for DNA- binding proteins which are often dimeric in structure Such double binding markedly increases the strength and speciﬁcity of the binding interaction ... from one kind of herpesvirus to another Most herpesviruses have one to two copies of latent and lytic origins Presence of palindromes around replication origins is prevalent in both latent and lytic ... (3): Computing the Window score: The score of a window in the genome is simply the total of the scores of all the palindromes occurring in this window A palindrome is considered in the window if...

Tài liệu Báo cáo Y học: The glucose-speciﬁc carrier of the Escherichia coli phosphotransferase system Synthesis of selective inhibitors and inactivation studies pptx

... recently introduced for the preparation of C-6 aldehyde derivatives of Glc [15] The key step is the use of Collins reagent for the selective oxidation of the primary trimethylsilyl ether of the ... RESULTS Synthesis of inhibitors The synthesis and characterization of compounds 1b, 1d, 1f, 1g and 3b (Scheme 1) is reported for the ﬁrst time, and the epoxypropyl derivative 3a is prepared by a ... Weber, G (1986) The oxidation of primary trimethylsilyl ethers to aldehydes: a selective conversion of a primary hydroxy group into an aldehyde group in the presence of a secondary hydroxy group J...

facile synthesis of porous a - fe2o3 nanorods and their application in ethanol sensors

... °C in air at a heating rate of 10 °C min-1 X-ray diffraction (XRD) analysis was performed on a D/MAX-RAX diffractometer with Cu KR radiation (λ ) 0.154 18 nm) operating at 40 kV and 100 mA Diffraction ... porous R -Fe2O3 nanorods increases dramatically with the increase in the ethanol vapor concentration and is much higher than that of the R -Fe2O3 nanoparticles under the same ethanol concentration ... of the porous R -Fe2O3 nanorods Figure (a, b) TEM and HRTEM images of R-FeOOH nanorods (c, d) TEM and HRTEM images of porous R -Fe2O3 nanorods (e) The corresponding ED pattern and (f) HRTEM image...

controlled synthesis of α fe2o3 nanorods and its size dependent optical

... understanding of the shape and sizedependent properties of α- Fe2 O3 In this paper, we propose an easy route for fabricating αFeOOH nanorods via a low-temperature hydrothermal method The α- FeOOH nanorods ... FESEM image of the as-obtained α- FeOOH nanorods and (b) TEM image of a single α- FeOOH nanorod (inset: SAED pattern of a single α- FeOOH nanorod); (c) FESEM image of the as-obtained α- Fe2 O3 nanorods; ... process And ﬁnally, small nanoneedles would grow into nanorods after heating for 12 h Size- dependent properties of the products To investigate the size- dependent properties of the α- Fe2 O3 nanorods, ...

Báo cáo hóa học: " One-Pot Synthesis of Biocompatible CdSe/CdS Quantum Dots and Their Applications as Fluorescent Biological Labels" doc

... doi:10.1007/s11671-010-9774-z Cite this article as: Zhai et al.: One-Pot Synthesis of Biocompatible CdSe/CdS Quantum Dots and Their Applications as Fluorescent Biological Labels Nanoscale Res Lett 2011 ... temperature, and 19 mg of Se powder was added Finally, the mixture was heated to 240°C and kept for a certain period of time such as 1, 5, 60, and 120 Synthesis of CdSe/CdS QDs As sulfur source, ... monochromaticity of the fluorescence but also the quantum yields of the QDs In our case, the quantum yields of the as- synthesized CdSe cores are around 2–3% In order to passivate their surface trap sites and...

Báo cáo hóa học: " Aqueous-Phase Synthesis of Silver Nanodiscs and Nanorods in Methyl Cellulose Matrix: Photophysical Study and Simulation of UV–Vis Extinction Spectra Using DDA Method" docx

... resonance (transverse) of silver nanorods Simulation of UV–vis Extinction Spectra Using DDA Method We carry out the analytical calculations for SPR transition of silver nanosphere using the modiﬁed ... above seeding growth approach Our present simulation of extinction spectra using DDA calculation suggests the potentiality of DDA methodology while calculating the extinction spectra of anisotropically ... ratio of our synthesized silver nanorods is in the range from to Accordingly, we simulate the extinction spectra of nanorod using aspect ratio 3, 4, and and the simulated spectra are shown in Fig...

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