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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Competitive DNA-RNA hybridization studies in normal and neoplastic tissues

Garrett, Carleton Theodore. January 1900 (has links)
Thesis--Wisconsin. / Vita. Includes bibliographical references (leaves 192-210).
2

A new generation of plant promoters : characterisation of two mung bean promoters with constitutive expression in tobacco /

Cazzonelli, Christopher Ian. January 2001 (has links) (PDF)
Thesis (Ph. D.)--University of Queensland, 2002. / Includes bibliographical references.
3

Identification of loci contributing to the Smith-Magenis syndrome-like phenotype and molecular evaluation of the retinoic acid induced 1 gene

Williams, Stephen. January 1900 (has links)
Thesis (Ph. D.)--Virginia Commonwealth University, 2010. / Prepared for: Dept. of Human Genetics. Title from title-page of electronic thesis. Includes bibliographical references . Record unavailable until 5/13/2015.
4

Combining CGH and high-resolution allelotyping study for ependymoma.

January 2001 (has links)
Zheng Ping-pin. / Thesis submitted in: December 2001. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2001. / Includes bibliographical references (leaves 118-159). / Abstracts in English and Chinese. / ACKNOWLEDGEMENTS --- p.i / ABSTRACT(ENGLISH/CHINESE) --- p.iii / CONTENTS --- p.viii / LIST OF TABLES --- p.xi / LIST OF FIGURES --- p.xii / PUBLICATION --- p.xiii / Chapter CHAPTER I --- INTRODUCTION / Chapter I.1. --- Preface --- p.1 / Chapter I.2. --- Overview of Carcinogenesis --- p.2 / Chapter I.3. --- Oncogene --- p.5 / Chapter I.4. --- Tumor Suppressor Genes (TSGs) --- p.6 / Chapter I.5 --- Detection of Oncogene and Tumor Suppressor Genes --- p.9 / Chapter I.5.1 --- Detaction of Oncogene --- p.9 / Chapter I.5.2. --- Detection of Tumor Suppressor Genes --- p.11 / Chapter I.6. --- Profiles of Oncogenes/TSGs and Molecular Subtype about Astrocytic Tumors --- p.17 / Chapter I.7. --- Intratumoral Heterogeneity and Microsatellite Instability --- p.20 / Chapter I.8. --- Outline of Ependymoma --- p.20 / Chapter I.9. --- Clinicopathological Factors and Prognosis --- p.22 / Chapter I.9.1. --- Histology and Grading (2000) --- p.22 / Chapter I.9.2. --- Prognosis Factors --- p.23 / Chapter I.9.2.1. --- Age/Sex/Location --- p.23 / Chapter I.9.2.2. --- Extent of Resection --- p.25 / Chapter I.9.2.3. --- Radiotherapy and Chemotherapy --- p.25 / Chapter I.9.2.4. --- Histology --- p.26 / Chapter I.10. --- "Cytogenetic, Molecular Genetic and Molecular Studies" --- p.27 / Chapter I.11. --- Advantages and Disadvantages of The Research Methods --- p.34 / Chapter CHAPTER II --- AIM OF STUDY --- p.36 / Chapter CHAPTER III --- MATERIALS AND METHODS --- p.37 / Chapter III.1. --- Tumor Samples and DNA Preparations --- p.37 / Chapter III.1.1. --- Tumor Samples --- p.38 / Chapter III.1.2. --- DNA Preparation --- p.38 / Chapter III.2. --- Comparative Genomic Hybridization --- p.42 / Chapter III.2.1. --- Metaphase Preparation --- p.42 / Chapter III.2.2. --- "DNA Labeling, Hybridization, and Detection" --- p.43 / Chapter III.2.3. --- Digital Image Analysis --- p.45 / Chapter III.3 --- High-Resolution Allelotying (Microsatellite Analysis) --- p.46 / Chapter III.3.1 --- General Outline --- p.46 / Chapter III.3.2 --- Multiplex PCR --- p.47 / Chapter III.3.3 --- Pooling of PCR Products --- p.49 / Chapter III.3.4 --- Electrophoresis --- p.50 / Chapter III.3.5. --- Assessment of Allelic Imbalance by Calculating Allelic Ratio --- p.52 / Chapter III.3.6 --- Standards of Evalution --- p.53 / Chapter III.3.7 --- Separating Allelic Loss from Allelic Duplication --- p.54 / Chapter III.3.8 --- Statistical Analyses --- p.54 / Chapter CHAPTER IV --- RESULTS --- p.54 / Chapter IV.1. --- CGH Study --- p.54 / Chapter IV.1.1 --- Overview --- p.54 / Chapter IV.1.2 --- Common Deletion Regions --- p.58 / Chapter IV.1.3 --- Common duplication Regions --- p.60 / Chapter IV.2. --- High-Resolution Allelotyping (Microsatellite Analysis) --- p.60 / Chapter IV.2.1. --- Overview of Results --- p.60 / Chapter IV.2.2. --- LOH profile of Individual Chromosome --- p.93 / Chapter IV.2.3. --- Overlapping Small Deletion Regions --- p.95 / Chapter CHAPTER V --- DISCUSSION --- p.97 / Chapter V.1. --- . General Outline --- p.98 / Chapter V.2. --- Chromosome 22 --- p.99 / Chapter V.3. --- Chromosome 17 --- p.102 / Chapter V.4. --- Chromosome 6 --- p.104 / Chapter V.5. --- Chromosome 16 --- p.105 / Chapter V.6. --- Chromosome 19 --- p.107 / Chapter V.7. --- Chromosome 20 --- p.108 / Chapter V.8. --- Chromosome 7 --- p.109 / Chapter V.9. --- Chromosome 12 --- p.110 / Chapter V.10. --- Chromosome 9 --- p.111 / Chapter V.11. --- Chromosome 5 --- p.112 / Chapter V.12. --- Chromosome 4 --- p.112 / Chapter V.13. --- Correlation of CGH with Allelotyping in the Study --- p.112 / Chapter V.14. --- Conclusion --- p.114 / Chapter CHAPTER VI --- LIMITATIONS OF THE STUDY --- p.115 / Chapter CHAPTER VII --- FUTURE STUDY --- p.116 / REFERENCES --- p.118
5

Optimization of a pulsed source-sink microscale mixing device

Cola, Baratunde Aole. January 2004 (has links)
Thesis (M.S. in Mechanical Engineering)--Vanderbilt University, Dec. 2004. / Title from title screen. Includes bibliographical references.
6

Characterization of DNA-functionalized surfaces for microarray and biosensor applications /

Lee, Chi-Ying, January 2006 (has links)
Thesis (Ph. D.)--University of Washington, 2006. / Vita. Includes bibliographical references (leaves 213-235).
7

DNA-DNA Hybridization of Methane Oxidizing Bacteria

Ackerson, Jill W. 12 1900 (has links)
Bacteria classified in the family Methylomonadaceae must derive their carbon from one-carbon compounds. They are characterized by the possession of internal membranes of two types. Type I membranes are layered and fill the middle of the cells while type II membranes form concentric layers around the periphery of the cells. Also, there are two metabolic pathways by which the methylobacteria assimilate one-carbon compounds. Further evidence of this dichotomy was sought by DNA-DNA saturation hybridization of DNAs from both types of methylobacteria. Very low DNA-DNA homology was seen between types I and II or within the types. It was not possible, therefore, to correlate the degree of genetic relatedness with either the nature of the internal membranes or the pathway of carbon assimilation.
8

The study and detection of human papillomavirus (HPV) genome in two cervical carcinoma cell lines by the use of hybridization techniques.

January 1990 (has links)
Tin-hung Ho. / Thesis (M.Phil.)--Chinese University of Hong Kong, 1990. / Bibliography: leaves 137-151. / ACKNOWLEDGEMENT --- p.1 / CONTENT --- p.3 / ABBREVIATIONS --- p.7 / ABSTRACT --- p.8 / Chapter CHAPTER 1 --- INTRODUCTION --- p.10 / Chapter CHAPTER 2 --- LITERATURE REVIEW / Chapter 2.1 --- The cervix and cervical cancer --- p.12 / Chapter 2.2 --- Human papillomaviruses --- p.23 / Chapter 2.3 --- Culture of cancer cells --- p.36 / Chapter 2.4 --- Methods for the detection of HPV infection --- p.40 / Chapter CHAPTER 3 --- MATERIALS AND METHODS / Chapter 3.1 --- Characterization of cervical carcinoma cell lines / Chapter 3.1.1 --- Materials and solutions --- p.47 / Chapter 3.1.2 --- Establishment of cervical carcinoma cell lines --- p.50 / Chapter 3.1.3 --- Morphological studies of cervical carcinoma cells --- p.52 / Chapter 3.1.4 --- Examination of cervical carcinoma cells cultured on collagen gel --- p.54 / Chapter 3.1.5 --- Growth kinetics study --- p.55 / Chapter 3.1.6 --- Plating efficiency test --- p.56 / Chapter 3.1.7 --- Spheroid formation assay --- p.56 / Chapter 3.1.8 --- Chromosome number study --- p.57 / Chapter 3.2 --- Immunocytochemical studies / Chapter 3.2.1 --- Materials and solutions --- p.58 / Chapter 3.2.2 --- Immunocytochemical test for keratin --- p.59 / Chapter 3.2.3 --- Test for HPV capsid antigens --- p.60 / Chapter 3.3 --- Molecular studies of HPV in cervical carcinoma cells / Chapter 3.3.1 --- Materials and solutions --- p.62 / Chapter 3.3.2 --- Preparation of HPV DNA probes --- p.66 / Chapter 3.3.3 --- DNA extraction from the cervical carcinoma cells --- p.74 / Chapter 3.3.4 --- Detection of HPV DNA sequences by the use of hybridization techniques --- p.76 / Chapter 3.3.5 --- Copy number and physical state studies of HPV --- p.81 / Chapter 3.3.6 --- Study of the transcriptional activity of HPV DNA in cultured cervical carcinoma cells --- p.83 / Chapter CHAPTER 4 --- RESULTS / Chapter 4.1 --- Characterization of cervical carcinoma cell lines / Chapter 4.1.1 --- Morphological studies --- p.89 / Chapter 4.1.2 --- Examination of cervical carcinoma cells cultured on collagen gel --- p.90 / Chapter 4.1.3 --- Growth kinetics study --- p.93 / Chapter 4.1.4 --- Plating efficiency test --- p.94 / Chapter 4.1.5 --- Spheroid formation assay --- p.95 / Chapter 4.1.6 --- Chromosome number study --- p.98 / Chapter 4.2 --- Immunocytochemical studies / Chapter 4.2.1 --- Immunocytochemical test for keratin --- p.99 / Chapter 4.2.2 --- Test for HPV capsid antigen --- p.99 / Chapter 4.3 --- Molecular studies of HPV in cervical carcinoma cell lines / Chapter 4.3.1 --- Preparation of HPV DNA probes --- p.101 / Chapter 4.3.2 --- Detection of HPV DNA by the use of hybridization techniques --- p.102 / Chapter 4.3.3 --- Copy number and physical state studies --- p.105 / Chapter 4.3.4 --- Analysis of the transcriptional activity --- p.108 / Chapter CHAPTER 5 --- DISCUSSIONS / Chapter 5.1 --- Characterization of cervical carcinoma cell lines / Chapter 5.1.1 --- Morphological features of two cervical carcinoma cell lines --- p.110 / Chapter 5.1.2 --- Other characteristics of the cell lines --- p.112 / Chapter 5.2 --- Immunocytochemical studies / Chapter 5.2.1 --- Test for keratin antigens --- p.117 / Chapter 5.2.2 --- Test for HPV capsid antigens --- p.117 / Chapter 5.3 --- Molecular studies of HPV in cervical carcinoma cell lines / Chapter 5.3.1 --- Establishment of methods --- p.121 / Chapter 5.3.2 --- Detection of HPV DNA sequences by nucleic acid hybridizations --- p.123 / Chapter 5.3.3 --- Copy number and physical state studies --- p.128 / Chapter 5.3.4 --- Transcriptional analysis of HPV DNA in cervical carcinoma cell lines --- p.132 / CONCLUSION --- p.134 / REFERENCES --- p.137 / ILLUSTRATIONS --- p.152
9

Chromosomal aberrations in hepatocellular carcinoma: a study by comparative genomic hybridization and interphase cytogenetics.

January 2000 (has links)
Lee Siu-wah. / Thesis submitted in: December 1999. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2000. / Includes bibliographical references (leaves [106]-116). / Abstracts in English and Chinese. / Abstract (in English) --- p.i / Abstract (in Chinese) --- p.iii / Acknowledgements --- p.v / Table of Contents --- p.vi / List of Figures --- p.ix / List of Tables --- p.x / Abbreviations --- p.xi / Chapter Chapter 1 --- Introduction --- p.1 / Chapter 1.1 --- Hepatocellular Carcinoma (HCC) --- p.2 / Chapter 1.2 --- Etiology of Hepatocellular Carcinoma --- p.5 / Chapter 1.2.1 --- Viral Infection --- p.5 / Chapter 1.2.1.1 --- Hepatitis B Virus --- p.5 / Chapter 1.2.1.2 --- Hepatitis C Virus --- p.7 / Chapter 1.2.2 --- Cirrhosis and Chronic Inflammation --- p.8 / Chapter 1.2.3 --- Aflatoxin --- p.9 / Chapter 1.3 --- Genetic Studies of Hepatocellular Carcinoma --- p.9 / Chapter 1.3.1 --- Conventional Cytogenetics --- p.9 / Chapter 1.3.2 --- Molecular Cytogenetics --- p.12 / Chapter 1.3.3 --- Molecular Genetic Studies --- p.12 / Chapter 1.3.3.1 --- Proto-oncogenes --- p.12 / Chapter 1.3.3.2 --- Tumour Suppressor Genes --- p.13 / Chapter 1.3.3.3 --- Cell Cycle Genes --- p.14 / Chapter 1.4 --- Background of Study --- p.16 / Chapter 1.5 --- Objectives of Study --- p.17 / Chapter Chapter 2 --- Material and Methods --- p.18 / Chapter 2.1 --- Materials --- p.19 / Chapter 2.2 --- Analysis of Chromosomal Imbalances by Comparative Genomic Hybridization --- p.23 / Chapter 2.2.1 --- Comparative Genomic Hybridization --- p.23 / Chapter 2.2.2 --- Methods / Chapter 2.2.2.1 --- Preparation of Normal Metaphases --- p.30 / Chapter 2.2.2.2 --- Extraction of High Molecular Weight DNA --- p.30 / Chapter 2.2.2.3 --- Labeling of DNA by Nick Translation --- p.31 / Chapter 2.2.2.4 --- Labeling Efficiency --- p.31 / Chapter 2.2.2.5 --- Preparation of Probe --- p.33 / Chapter 2.2.2.6 --- Hybridization --- p.33 / Chapter 2.2.2.7 --- Washing and Detection of Signals --- p.35 / Chapter 2.2.2.8 --- Image Acquisition and Analysis --- p.35 / Chapter 2.2.2.9 --- Control Experiments --- p.36 / Chapter 2.3 --- Positional Mapping of Novel Amplicon by Interphase Cytogenetics --- p.39 / Chapter 2.3.1 --- Fluorescence in situ Hybridization --- p.39 / Chapter 2.3.2 --- Using Yeast Artificial Chromosomes (YAC) as Probe --- p.41 / Chapter 2.3.3 --- Methods --- p.48 / Chapter 2.3.3.1 --- Culture of Yeast Artificial Chromosomes --- p.48 / Chapter 2.3.3.2 --- Extraction of Total YAC DNA --- p.48 / Chapter 2.3.3.3 --- Verification of YAC Clones for Chimerism by FISH --- p.49 / Chapter 2.3.3.4 --- Inter-Alu-PCR --- p.49 / Chapter Chapter 3 --- Assessment of Genetic Changes in HCC by Comparative Genomic Hybridization (CGH) --- p.57 / Chapter 3.1 --- Introduction --- p.58 / Chapter 3.2 --- Materials and Methods --- p.58 / Chapter 3.2.1 --- Patients and Specimens --- p.58 / Chapter 3.2.2 --- Comparative Genomic Hybridization --- p.60 / Chapter 3.2.3 --- Statistical Analysis --- p.60 / Chapter 3.3 --- Results --- p.61 / Chapter 3.3.1 --- Overall Copy Number Aberrations in 67 HCC and Surrounding Cirrhotic Tissues --- p.61 / Chapter 3.3.2 --- TNM Staging --- p.61 / Chapter 3.3.3 --- Tumour Size --- p.72 / Chapter 3.3.4 --- Serum AFP Elevation --- p.72 / Chapter 3.3.5 --- Chromosomal Aberrations in HCC arising from Cirrhotic and Non- cirrhotic Livers --- p.72 / Chapter 3.4 --- Discussion --- p.73 / Chapter 3.4.1 --- Recurrent Gains --- p.73 / Chapter 3.4.2 --- Recurrent Losses --- p.75 / Chapter 3.4.3 --- Tumour Progression --- p.76 / Chapter 3.5 --- Conclusion --- p.78 / Chapter Chapter 4 --- Positional Mapping of a Novel Amplicon on Chromosome 1q21-q25 by Interphase Cytogenetics --- p.79 / Chapter 4.1 --- Introduction --- p.80 / Chapter 4.2 --- Materials --- p.82 / Chapter 4.3 --- Methods --- p.82 / Chapter 4.3.1 --- Preparation of Paraffin-embedded Tissue Sections --- p.82 / Chapter 4.3.2 --- Verification of YAC Probes for Chimerism --- p.83 / Chapter 4.3.3 --- Hybridization Efficiency of Test and Reference Probes --- p.83 / Chapter 4.3.4 --- Slide Pretreatment and FISH with YAC Probes --- p.88 / Chapter 4.3.5 --- Scoring of FISH Signals --- p.88 / Chapter 4.4 --- Results --- p.89 / Chapter 4.4.1 --- Relative Copy Number Gain --- p.89 / Chapter 4.4.2 --- Intratumour Heterogeneity --- p.90 / Chapter 4.5 --- Discussion --- p.90 / Chapter 4.6 --- Further Studies --- p.104 / Chapter 4.6.1 --- Fine Mapping of Chromosomal Region 1 q21 --- p.104 / Chapter 4.6.2 --- Isolation of Novel Genes in the Amplicon --- p.105 / Chapter 4.6.3 --- Expression Status of the EDC Genes --- p.105 / References --- p.106
10

Single-molecule studies of nucleic acid dynamics using carbon nanotube-based field-effect transistors

Daly, Nathan Scott January 2017 (has links)
This thesis describes the development and implementation of single-molecule carbon nanotube-based field-effect transistors (smFETs) for studies of nucleic acid dynamics. Single-molecule techniques, most notably fluorescence resonance energy transfer (smFRET) and single-molecule force spectroscopy, have been employed to investigate biomolecular dynamics due to their ability to directly observe discrete, rare events, as well as to characterize structural motions in a diverse ensemble. However, these techniques are hampered by difficulties in measuring millisecond-scale dynamics, such as base pair rearrangements, as well as the inability to observe unperturbed individual molecules for long times. Alternatively, smFETs allow observation of the dynamics of charged biomolecules, such as charged amino acids in proteins or the phosphate groups of nucleic acid backbones, with microsecond temporal resolution. Structural rearrangements of a single charged molecule on the surface of a single-walled carbon nanotube (CNT) transistor can lead to measureable fluctuations in conductance through the CNT. Thus, this technique allows for simultaneous characterization of fast events and, due to the label-free and minimally-invasive nature of smFET technology, the quantification of how the frequency of these events change over long time-scales. A portion of this work describes smFET fabrication, focusing on improvements to the functionalization method, a critical step to reliably generate individual attachment sites on the CNT for subsequent single-molecule studies. A new synthetic chemistry approach is performed in ultraminiaturized, nanofabricated reaction chambers; using lithographically-defined nanowells, single-point attachments are achieved on hundreds of individual carbon nanotube transistors, providing robust statistics and unprecedented spatial control in adduct positioning. Each device acts as a sensor to detect, in real-time and through quantized changes in conductance, single-point functionalization of the nanotube, as well as consecutive chemical reactions and subsequent molecular interactions molecular conformational changes. In particular, this thesis is focused on studying the dynamics of nucleic acids using smFET technology. First, the smFET technique presented is verified by studying the thermodynamics and kinetics of DNA hybridization, the results of which compare favorably both with predicted values and previous smFET studies using alternative device architectures. Next, the reversible folding of a single-stranded telomeric DNA sequence known to form a G-quadruplex structure is studied, revealing the characteristic increased stability of the G-quadruplex structure in the presence of potassium ions relative to sodium ions. Finally, smFET studies of the dynamics of the adenine-sensing pbuE riboswitch aptamer found in Bacillus subtilis are discussed. These results demonstrate how long-lived, ligand-dependent intermediates form at a base-pair level and suggest that these intermediates have consequences for riboswitch-regulation by adenine binding to the aptamer. With the increased time resolution of smFET technology, this work has achieved the first observation of RNA zipping and unzipping at the single-molecule level, as well as label-free observations of the effects of a three-way junction motif on helix zipping and unzipping.

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