学位专题

封面
声明
ABSTRACT
摘要
Contents
List of Abbreviations
1Exordium
1.1 Introduction
1.2Nanoparticles
1.2.1Methods for nanoparticles synthesis
1.2.2Applications of nanoparticles
1.3Introduction of plants used in this study
1.4Objectives
References
2Methods and Materials
2.1Chemicals
2.2Plant extract Preparation
2.3Synthesis of Au, Ag and Pd Nps using Different plant extracts
2.4Preparation of TiO2
2.5Preparation of Ag/TiO2
2.6Formation of 4-AP from4-NP
2.7Photo catalytic activity
2.8Antibacterial activity
2.8.1Micro organisms
2.8.2Agar well diffusion assay
2.8.3Minimum inhibition concentration
2.9Screening of AgNPs for photo inactivation of E. coli
2.10Antileishmanial activity
2.10.1Parasite culture
2.10.2Determination of antileishmanial activity of gold nanoparticles
2.11DPPH free radical scavenging assay
2.12Characterization Techniques
2.12.1UV-VIS Spectroscopy
2.12.2TEM
2.12.3X-RAY Diffraction
2.12.4Scanning Electron Microscopy
2.12.5Energy Dispersive X-RAY Spectroscopy
2.13Autoclave
2.14Incubator
References
3Silver nanoparticles synthesized by Cirsium arvense plant extract and itsphotocatalytic activity
3.1AgNPs Synthesis
3.2Factors affecting the synthesis of AgNPs
3.2.1Time Effect on AgNPs synthesis
3.2.2Effect of leaf extract concentrations
3.2.3pH Effect on the stability of silver NPs
3.3Characterizations
3.3.1XRD examinations
3.3.2FTIR study
3.3.3HRTEM images of AgNPs at different extract
3.3.4SEM analysis
3.3.5EDX analysis
3.4Antibacterial activity of photo irradiated AgNPs
3.4.1MIC of AgNPs
3.4.2Efficacy of AgNPs with irradiation time
3.4.3Effect of morphology of AgNPs
3.4.4Mechanism of antibacterial activity
3.5Summary
References
4Greenish synthesis of AgNPs using Salvadora persica stem extract
4.1AgNPs Synthesis
4.2Factors affecting the AgNPs synthesis
4.2.1UV-Visible spectra recoded at different time
4.2.2Effect of temperature
4.2.3Effect of leaf extract concentrations
4.3Characterizations
4.3.1XRD observations
4.3.2FT-IR analysis
4.3.3HRTEM images at different extract concentrations
4.3.4HRTEM images at different temperatures
4.3.5SEM analysis
4.3.6EDX analysis
4.4Photo degradation of MB
4.4.1Concentration Effect of AgNPs on MB degradation
4.4.2Effect of incident light
4.4.3Morphology effect of AgNPs
4.5Summary
References
5Multi applicative gold nanoparticles synthesized by Cestrum nocturnum plant extract
5.1AuNPs Synthesis
5.2Factors affecting the synthesis of AuNPs
5.2.1Time dependent UV-visible spectra
5.2.2Effect of leaf extracts concentrations
5.2.3Temperature Effect
5.3Characterizations
5.3.1XRD examinations
5.3.2FTIR analysis
5.3.3HRTEM images of gold NPs prepared at different extract
5.3.4HRTEM images at different temperatures
5.3.5SEM analysis
5.3.6EDX analysis
5.4Applications
5.4.1Antibacterial activity
5.4.2Viability of promastigotes
5.4.3DPPH reduction
5.5Summary
References
6Bio-directed synthesis of AuNPs using Salvadora persica stem extract
6.1AuNPs Synthesis
6.2Factors affecting the synthesis of AuNPs
6.2.1Time dependent synthesis
6.2.2Effect of leaf extract concentrations
6.3Characterizations
6.3.1XRD examinations
6.3.2FTIR analysis
6.3.3HRTEM images of gold NPs prepared at different extract concentrations
6.3.4SEM analysis
6.3.5EDX analysis
6.4Catalytic Property of AuNPs
6.5Summary
References
7Biologically synthesized nanocomposites
7.1Synthesis of TiO2 and Ag/TiO2
7.2Characterizations
7.2.1UV-visible spectral analysis of Ag／TiO2 nanocomposite
7.2.2FTIR analysis
7.2.3X-ray study
7.2.4HRTEM analysis
7.2.5SEM analysis
7.3Applications
7.3.1Photo degradation
7.3.2Antibacterial activity TiO2 and Ag/TiO2
7.4Summary
References
8Conclusion
Novelty statement
Acknowledgements
List of publications
Introduction of Author and Supervisor