zero valent iron nanoparticles for abatement of environmental pollutants materials and engineering aspects

Báo cáo hóa học: " Assessment of Influence of Magnetic Forces on Aggregation of Zero-valent Iron Nanoparticles" ppt

Báo cáo hóa học: " Assessment of Influence of Magnetic Forces on Aggregation of Zero-valent Iron Nanoparticles" ppt

Ngày tải lên : 21/06/2014, 08:20
... C(r ) ⎟ , ⎟ ⎠ ⎠ where δi3 stands for Kronecker delta and i = 1, 2, The symbol C(r) replaces Figure Hysteresis loop of the zero- valent iron nanoparticles for temperature of 300 K measured with magnetometer ... total probability of the aggregation of a particle i with a particle j is then Electrostatic Forces Among Iron Nanoparticles A mathematical model of aggregation for the case of iron particles was ... Reduction of chlorinated methanes by nano-sized zero- valent iron Kinetics, pathways, and effect of reaction conditions Environ Eng Sci 2006, 23(2) Buffle J, Van Leeuweh H, eds.: Environmental...
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Surface modification of ferromagnetic nanoparticles for separation of toxic heavy metals and environmental applications

Surface modification of ferromagnetic nanoparticles for separation of toxic heavy metals and environmental applications

Ngày tải lên : 08/09/2015, 19:41
... MODIFICATION OF FERROMAGNETIC NANOPARTICLES FOR SEPARATION OF TOXIC HEAVY METALS AND ENVIRONMENTAL APPLICATIONS ZAYED BIN ZAKIR SHAWON B.Sc (Chemical Engineering) Bangladesh University of Engineering ... SUBMITTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY DEPARTMENT OF CHEMICAL & BIOMOLECULAR ENGINEERING NATIONAL UNIVERSITY OF SINGAPORE 2013 Acknowledgements First and foremost, I would like to offer ... Spectra of Bare and janus Magnetic Nanoparticles 183 Figure 7- TGA thermograms of bare, janus and fully coated magnetic nanoparticles 184 Figure 7- TEM micrograph of janus magnetic nanoparticles...
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Surface functionalized magnetic nanoparticles for separation of chiral biomolecules, pharmaceuticals and endocrine disrupting compounds

Surface functionalized magnetic nanoparticles for separation of chiral biomolecules, pharmaceuticals and endocrine disrupting compounds

Ngày tải lên : 09/09/2015, 17:57
... Scholarship and department of Chemical and Biomolecular Engineering for providing all the facilities for carrying out this research work Sudipa Ghosh December, 2012 i Table of contents Table of contents ... Effect of initial pH 189 7.3.2 Effect of contact time and adsorption kinetics 192 7.3.3 Isotherm test and role of physicochemical properties of pollutants 196 7.3.4 Adsorption of ... isotherms of (a) L- and (b) D-Tyr at 25°C, 35°C and 50°C (pH 5.6 and ionic strength 0.03M) 132 Figure 5-11 Effect of temperature on adsorption: (a) D- and L-Trp, (b) D- and L-Phe, (c) D- and...
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Reduction of nitrate by nanoscale zero-valent iron supported on mesoporous silica beads

Reduction of nitrate by nanoscale zero-valent iron supported on mesoporous silica beads

Ngày tải lên : 05/09/2013, 09:38
... Laurent C., and Heechul C (2005) Removal of Arsenic(Ⅲ) from Groundwater by Nanoscale Zero- Valent Iron Environ Sci Technol., 39(5), 1291-1298 Zhang, W X (2003) Nanoscale iron particles for environmental ... The effect of solution’s pH and agitation speed on the formation of mesoporous silica was evaluated Initial pH was controlled by adding M of NaOH solution and it ranged from 12.4 to 13. 3for the ... MPTS The initial concentrations of nitrate was 35 mgN/L and g of supported nZVI beads were added to 100 mL of nitrate solution without - 39 - Journal of Water and Environment Technology, Vol 6, No.1,...
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Microgel iron oxide nanoparticles for tracking of stem cells through magnetic resonance imaging

Microgel iron oxide nanoparticles for tracking of stem cells through magnetic resonance imaging

Ngày tải lên : 14/09/2015, 08:49
... glial cells of the CNS, and they form a major part of the blood brain barrier and provide metabolic support of neurons Upon recognition of foreign antigen with PRR such as TLR, mannose and complement ... Jerry Chan for his tireless inspiration, patience and hands-on approach to the guidance of this thesis The overseas collaborators of this study, Professor André Briguet, Dr Olivier Beuf and Dr Claire ... clinically and commerciallyavailable markers not offer sufficient image contrast for the detection of small groups of cells The aim of this thesis is to investigate the development of particulate...
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The effects of chloride ions on the hydrogen gas generation and TCE degradation in aqueous solutions containing zero valent iron

The effects of chloride ions on the hydrogen gas generation and TCE degradation in aqueous solutions containing zero valent iron

Ngày tải lên : 13/05/2016, 10:16
... degradation and denitrification in one process using zero valent iron 2.1 Dechlorination reaction by Zero valent iron (ZVI) The study about dechlorination reaction of TCE by zero valent iron was performed ... Containing Zero Valent Iron Huynh, Khanh An Dept of Civil and Environmental Engineering, Graduate school of Korea University Abstract The effects of chloride ions on the hydrogen gas generation and ... Thesis for the Degree of Master of Science in Engineering The Effects of Chloride Ions on the Hydrogen Gas Generation and TCE Degradation in Aqueous Solutions Containing Zero Valent Iron By...
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FINAL ACTION PLAN FOR IMPROVEMENT OF ENVIRONMENTAL PARAMETERS IN CRITICALLY POLLUTED AREAS “VISAKHAPATNAM CLUSTER” ANDHRA PRADESH docx

FINAL ACTION PLAN FOR IMPROVEMENT OF ENVIRONMENTAL PARAMETERS IN CRITICALLY POLLUTED AREAS “VISAKHAPATNAM CLUSTER” ANDHRA PRADESH docx

Ngày tải lên : 06/03/2014, 16:20
... environment of Visakhapatnam is 57.0 with the break up of A+B+C+D as 15+12+20+10, for water environment as 57.7 with the break up of 15+12.5+20+10, for land environment as 55.0 with break up of ... thereby reducing the movement of M/s VPT is in the process of number of trucks and dust fly-off mechanization of stocking, loading and unloading of dusty cargo like coal and iron ore to eliminate the ... improve the current status of their environmental components such as air and water quality, ecological damage and visual environmental conditions As per the study of CPCB, Visakhapatnam area...
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Magnetic chitosan nanoparticles for removal of Cr(VI) from aqueous solution

Magnetic chitosan nanoparticles for removal of Cr(VI) from aqueous solution

Ngày tải lên : 02/07/2014, 14:14
... d) and TEM images (e, f) of magnetic chitosan nanoparticles 1216 N.N Thinh et al / Materials Science and Engineering C 33 (2013) 1214–1218 in the range of 2θ = 10°–60°, and a scanning rate of ... pattern of magnetic chitosan nanoparticles 70 pH Fig The influence of initial pH value on the adsorption of the Cr(VI) on magnetic chitosan nanoparticles N.N Thinh et al / Materials Science and Engineering ... the form of H2CrO4, while in the pH range of 1–6, different forms of chromium 2− − 2− − such as Cr2O7 , HCrO4 , and Cr3O10 coexist while HCrO4 predominates 2− 2− As the pH increases, those form...
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Báo cáo y học: "Rapamycin-loaded nanoparticles for inhibition of neointimal hyperplasia in experimental vein grafts" pps

Báo cáo y học: "Rapamycin-loaded nanoparticles for inhibition of neointimal hyperplasia in experimental vein grafts" pps

Ngày tải lên : 10/08/2014, 09:21
... average diameter of 180.3 nm (particle size range of 100-450 nm) for nanoparticles( Figure 1A) TEM showed a spherical shape for RPLGA nanoparticles (Figure 1B) The diameter of nanoparticles measured ... ends and fixed with 4% phosphate-buffered formaldehyde Consecutively the veins were formalin fixed and embedded in paraffin Sections of μm thickness were stained by Hematoxylin and Eosin for measurement ... per gram of dry tissue Statistical analysis The SPSS™ for Windows statistical software package (SPSS 17 for Windows, SPSS Inc., Chicago, IL, USA) was used for analysis The value of MTT and intimalmedian...
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báo cáo khoa học: "Cationic nanoparticles for delivery of amphotericin B: preparation, characterization and activity in vitro" potx

báo cáo khoa học: "Cationic nanoparticles for delivery of amphotericin B: preparation, characterization and activity in vitro" potx

Ngày tải lên : 11/08/2014, 00:22
... between Candida albicans viability (%) and zetapotential (mV) Correlation for AmB formulation at low (ᮀ) and high P (l) Correlation between Candida albicans viability (%) and zeta-potential (mV) for ... point of view of reduced nephrotoxicity [22] Furthermore, cationic surfactants and polymers have an effect on integrity of red blood cells [28] Therefore, similar studies should be performed for ... (%) of Candida albicans (1 × 106 cfu/mL) as a function of polyelectrolytes concentration Cells and CMC (A); DODAB/AmB/CMC (B); CMC/PDDA (C) and DODAB/ AmB/CMC/PDDA (D) interacted for h before...
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Electrochemical DNA sensor for detection of environmental pathogens

Electrochemical DNA sensor for detection of environmental pathogens

Ngày tải lên : 08/09/2015, 18:11
... thanks to Prof Li Fong Yau Sam for being my co-supervisor I gratefully thanks to Dr Ng Lee Ching, Dr Chanditha and her group, Environmental Health Institute, National Environment Agency, for providing ... customised for meeting the size, cost, low volume, and power requirements, thus offer great promise for a wide range of biomedical or environmental applications [44-46] A variety of electrochemical ... voltammogram of the EAMB biosensor in the presence of 1, 10 and 100 mM Fe(CN)64- Inset: magnified view of cyclic voltammetric peaks of hairpin DNA-ferrocene probes in the absence ( ) and presence ( ) of...
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Novel biodegradable cationic core shell nanoparticles for codelivery of drug and DNA chapter 5 conclusions and recommendations

Novel biodegradable cationic core shell nanoparticles for codelivery of drug and DNA chapter 5 conclusions and recommendations

Ngày tải lên : 16/09/2015, 15:54
... conditions, and they had a very stable coreshell structure because of the rigid chemical structure of the core-forming segment cholesterol The TEM scans of the micelles also evidenced the formation of ... KB-31-MA cells and by paclitaxel in 4T1 cells has proved that the micelles is a kind of excellent codelivery system for hydrophobic drug and nucleic acid including DNA, RNA For proof of the principle, ... amine and quaternary ammonium It can be hydrolyzed and is used as the shell-forming segment Cholesterol is the pendant group and used as the core-forming segment The positive charges of the...
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Novel biodegradable cationic core shell nanoparticles for codelivery of drug and DNA 4

Novel biodegradable cationic core shell nanoparticles for codelivery of drug and DNA 4

Ngày tải lên : 16/09/2015, 15:54
... spectrum of PMDA 4.1.3 Synthesis and characterization of P(MDS-co-CES) and P(MDA-co-CEA) The synthesis of P(MDS-co-CES) and P(MDA-co-CEA) was performed by grafting Be-chol onto PMDS and PMDA ... stretching of amine The shift and increased intensity of this peak compared with that of PMDS (1240 cm-1) illustrated the formation of a quaternary ammonium salt The 1H-NMR and FTIR spectra of P(MDA-co-CEA) ... (signal h) and the proton of the methyl group linked to the hexane and pentane cycles of the pendant chain (signal i) were considered suitable for use in the estimation of Rg For the proton of methylene...
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Novel biodegradable cationic core shell nanoparticles for codelivery of drug and DNA 3

Novel biodegradable cationic core shell nanoparticles for codelivery of drug and DNA 3

Ngày tải lên : 16/09/2015, 15:54
... PEGylation of PMDS 5.958 g of N-methyldiethanolamine (0.05mol), 0.00125 mol of mPEG (6.25 g, 2.5 g, 1.375 g, 0.8125 g for Mn of 5000, 2000, 1100 and 650 Dalton respectively) and 50.5 g of triethylamine ... at 318 nm for indomethacin, 273 nm for pyrene, 266 nm for paclitaxel, and 277nm for verapamil The standard curves were obtained by preparing standard indomethacin pyrene, paclitaxel and verapamil ... cut-off of 3.5 kDa for two days to further remove the unreacted PEG and other impurity PEG5000-PMDS were dialyzed using a dialysis membrane with a molecular weight cut-off of kDa The yield of...
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Novel biodegradable cationic core shell nanoparticles for codelivery of drug and DNA 2

Novel biodegradable cationic core shell nanoparticles for codelivery of drug and DNA 2

Ngày tải lên : 16/09/2015, 15:54
... methods for measuring the critical micelle concentration (CMC) of polymeric micelles, and biomedical applications of micelles 2.1.1 Mechanism of polymeric micelle formation Formation mechanism and ... al., 1991] For example, light scattering is known as one of the most powerful techniques for the determination of the size, shape, and aggregation numbers of micelles as well as values of the diffusion ... exhibit a number of advantages over other forms of drug carriers because of their core-shell structure, low CMC and targeting ability 2.1.4.1 Core of polymeric micelles as a reservoir for hydrophobic...
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Novel biodegradable cationic core shell nanoparticles for codelivery of drug and DNA 1

Novel biodegradable cationic core shell nanoparticles for codelivery of drug and DNA 1

Ngày tải lên : 16/09/2015, 15:54
... ability of the blank and drug-loaded core-shell nanoparticles, and structural integrity of core-shell nanoparticles during the DNA binding process, • Testing cytotoxicity of the core-shell nanoparticles ... polymers and utilizing these polymers to fabricate cationic core-shell nanoparticles (i.e micelles) for codelivery of drugs and genes, • Pegylating the amphiphilic polymers using PEG of various ... effect of drug and gene therapies, both the drug and gene have to be delivered to the same cell type Therefore, there is a great need to develop a delivery system that can carry both the drug and...
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Carboxymethyl chitosan functionalized magnetic nanoparticles for disruption of biofilms of straphylococcus aureus and escherichia coli

Carboxymethyl chitosan functionalized magnetic nanoparticles for disruption of biofilms of straphylococcus aureus and escherichia coli

Ngày tải lên : 02/10/2015, 17:14
... (a-c) E coli biofilms and (d-f) S aureus biofilms: (a) and (d) pre-grown biofilms after incubation in PBS for 24 h, (b) and (e) with addition of CMCS-MNPs (2.0 mg/mL) without MF for and after incubation ... aureus biofilms: (a) and (d) pre-grown biofilms after incubation in PBS for 24 h, (b) and (e) with addition of CMCS-MNPs (2.0 mg/mL) without a MF for and after incubation in PBS for 24 h, (c) and ... in PBS for 24 h, (c) and (f) with addition of CMCS-MNPs (2.0 mg/mL) with MF for and after incubation in PBS for 24 h Scale bar = 100 µm viii Figure 4-9 SEM images of (a-c) E coli biofilms and (d-f)...
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HANDBOOK FOR APPRAISAL OF ENVIRONMENTAL PROJECTS

HANDBOOK FOR APPRAISAL OF ENVIRONMENTAL PROJECTS

Ngày tải lên : 04/10/2015, 19:50
... Hungary: Central Environmental Protection Fund 102.2 Poland: National Fund for Environmental Protection and Water Management Poland: EcoFund 364.6 38.5 Poland: Krakow Regional Environmental Protection ... appraisal and financing These include some Polish environmental funds (The National Fund for Environmental Protection and Water Management, the Polish EcoFund, and the Krakow Regional Environmental ... Slovenian Environmental Development Fund, the Czech State Environmental Protection Fund, and the environmental fund under the supervision of the Austrian Ministry of Agriculture, Forestry, Environment...
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A study of linguistic features of intructions for use of foodstuffs in english and vietnamese

A study of linguistic features of intructions for use of foodstuffs in english and vietnamese

Ngày tải lên : 26/11/2013, 13:23
... to make a detailed study of linguistic exact and deep understanding of the way of using words and writing features of EIUFs and VIUFs in terms of lexical, syntactic, and semantic sentences in ... manufacturing of companies Therefore, “A Study of Linguistic Features of Instructions for Use of Foodstuffs in English and 1.1 RATIONALE Vietnamese” is the title of the master thesis I wish to perform ... - No–s form for the 3rd person singular of the present tense Understandable; Simplified, and Explicit - Past forms can be used to refer to present and future time 2.2.1.4 Regulations of the Instruction...
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Báo cáo khoa học: Reconstruction ofde novopathway for synthesis of UDP-glucuronic acid and UDP-xylose from intrinsic UDP-glucose inSaccharomyces cerevisiae pptx

Báo cáo khoa học: Reconstruction ofde novopathway for synthesis of UDP-glucuronic acid and UDP-xylose from intrinsic UDP-glucose inSaccharomyces cerevisiae pptx

Ngày tải lên : 07/03/2014, 12:20
... importance of UDP-Xyl, there is currently no affordable system for production of large amounts of this nucleotide sugar Thus, we worked to develop a similar system for in vivo production of UDP-Xyl ... production of UDP-GlcA and UDP-Xyl via conversion of a large precursor pool of UDP-Glc into the derivative molecules Here, we report the generation of yeast strains capable of producing large amounts of ... 25 °C and at pH 8.4 for 40 One unit of enzyme activity is defined as the amount of enzyme that resulted in production of lmol UDPGlcAÆmin)1 at 25 °C For each substrate, reactions were performed...
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