Dissertations / Theses on the topic 'Biocybernetic diagnostics and therapy'
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Smit, Jan Gerhard. "Grundlagen der wissenschaftlichen Biokybernetischen Diagnostik und Therapie für funktionell chronisch Kranke." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2010. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-62518.
Full textSmit, Jan Gerhard. "Grundlagen der Kybernetischen Medizin (Reflexmedizin) mit Mikropressur und dem Reflexotron." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2010. http://nbn-resolving.de/urn:nbn:de:swb:14-opus-23441.
Full textEhtaiba, Mabrouka Haiba. "Use of microwave techniques in medical diagnostics and therapy." Thesis, Cardiff University, 2017. http://orca.cf.ac.uk/103482/.
Full textBrennecke, Johannes. "Molecular diagnostics of the bacterial response to antibiotic therapy." Thesis, University of Edinburgh, 2017. http://hdl.handle.net/1842/28843.
Full textConde, João Diogo Osório de Castro. "Cancer theranostics: multifunctional gold nanoparticles for diagnostics and therapy." Doctoral thesis, Faculdade de Ciências e Tecnologia, 2013. http://hdl.handle.net/10362/10927.
Full textThe use of gold nanoparticles (AuNPs) has been gaining momentum in molecular diagnostics due to their unique physico-chemical properties these systems present huge advantages, such as increased sensitivity, reduced cost and potential for single-molecule characterisation. Because of their versatility and easy of functionalisation, multifunctional AuNPs have also been proposed as optimal delivery systems for therapy (nanovectors). Being able to produce such systems would mean the dawn of a new age in theranostics (diagnostics and therapy)driven by nanotechnology vehicles. Nanotechnology can be exploit for cancer theranostics via the development of diagnostics systems such as colorimetric and imunoassays, and in therapy approaches through gene therapy, drug delivery and tumour targeting systems. The unique characteristics of nanoparticles in the nanometre range, such as high surface-tovolume ratio or shape/size-dependent optical properties, are drastically different from those of their bulk materials and hold pledge in the clinical field for disease therapeutics This PhD project intends to optimise a gold-nanoparticle based technique for the detection of oncogenes’ transcripts (c-Myc and BCR-ABL) that can be used for the evaluation of the expression profile in cancer cells, while simultaneously developing an innovative platform of multifunctional gold nanoparticles (tumour markers, cell penetrating peptides, fluorescent dyes) loaded with siRNA capable of silencing the selected proto-oncogenes, which can be used to evaluate the level of expression and determine the efficiency of silencing. This work is a part of an ongoing collaboration between Research Centre for Human Molecular Genetics, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Portugal and Biofunctional Nanoparticles and Surfaces Group, Instituto de Nanociencia de Aragón, Spain within a European project [NanoScieE+ - NANOTRUCK]. In order to achieve this goal we developed effective conjugation strategies to combine, in a highly controlled way, biomolecules to the surface of AuNPs with specific functions such as: ssDNA oligos to detect specific sequences and for mRNA quantification; Biofunctional spacers: Poly(ethylene glycol) (PEG) spacers used to increase solubility and biocompatibility and confer chemical functionality; Cell penetrating peptides: to overcome the lipophilic barrier of the cellular membranes and deliver molecules into cells using TAT peptide to achieve cytoplasm and nucleus; Quaternary ammonium: to introduce stable positively charged in gold nanoparticles surface; and RNA interference: siRNA complementary to a master regulator gene, the proto-oncogene c-Myc, that is implicated in cell growth, proliferation, loss of differentiation, and cell death. In order to establish that they are viable alternatives to the available methods, these innovative nanoparticles were extensively characterized on their chemical functionalization, ease of uptake, cellular toxicity and inflammation, and knockdown of MYC protein expression in several cancer cell lines and in in vivo models.
Fundação para a Ciência e Tecnologia - (SFRH/BD/62957/2009); PTDC/BIO/66514/2006; NANOLIGHT-PTDC/QUI-QUI/112597/2009; Silencing the silencers via multifunctional gold nanoconjugates towards cancer therapy - PTDC/BBB-NAN/1812/2012
Hobson, N. J. "Nanoparticle theranostics for applications in cancer diagnostics and cancer therapy." Thesis, University College London (University of London), 2017. http://discovery.ucl.ac.uk/1546610/.
Full textMohammad, Zadeh Maryam. "Towards high throughput mechanical testing of cells for diagnostics and therapy." Thesis, Heriot-Watt University, 2017. http://hdl.handle.net/10399/3345.
Full textSandberg, Carin. "Aspects of fluorescence diagnostics and photodynamic therapy in non-melanoma skin cancer /." Göteborg : Department of Dermatology and Venereology, Sahlgrenska University Hospital, Institute of Clinical Sciences, Sahlgrenska Academy University, University of Gothenburg, 2009. http://hdl.handle.net/2077/21192.
Full textPersson, Mikael. "Antibody Mediated Radionuclide Targeting of HER-2 for Cancer Diagnostics and Therapy : Preclinical Studies." Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis : Univ.-bibl. [distributör], 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-6798.
Full textNestor, Marika. "Antibody-Based Radionuclide Targeting for Diagnostics and Therapy : Preclinical Studies on Head and Neck Cancer." Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-7341.
Full textHuang, Xiaohua. "Gold Nanoparticles Used in Cancer Cell Diagnostics, Selective Photothermal Therapy and Catalysis of NADH Oxidation Reaction." Diss., Georgia Institute of Technology, 2006. http://hdl.handle.net/1853/10565.
Full textSchranz, Katrin [Verfasser], and Heinrich [Akademischer Betreuer] Leonhardt. "Investigation of AML-specific FLT3 mutations – from next generation diagnostics to combined targeted therapy / Katrin Schranz ; Betreuer: Heinrich Leonhardt." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2019. http://d-nb.info/1184202648/34.
Full textWhitney, Jon R. "Single Walled Carbon Nanohorns as Photothermal Absorbers, and Incorporation of Spatial Digital Image Analysis into Cancer Diagnostics and Therapy." Diss., Virginia Tech, 2013. http://hdl.handle.net/10919/50616.
Full textGoals: �This work aims to accomplish two major goals. �The first is to determine the therapeutic impact of combining Single Walled Carbon Nanohorns (SWNHs) with photothermal therapy. �The second is to advance the measurement tools used to assess photothermal therapy by developing viability measurement methods which incorporate detailed quantitative spatial information
Methods: Photothermal therapy was tested with and without SWNHs in in vitro cell monolayers, in vitro tissue phantoms, and ex-vivo tissue. �Digital image analysis methods were developed which allowed for the use of viability assays and histological information to be identified and organized spatially. �These methods were then used to compare the impact of cellular microenvironment and heating method on Arrhenius parameters.
Results: The inclusion of SWNHs dramatically increased the temperatures reached in each experiment. �Digital image analysis methods were shown to quantify spatial viability with a high degree of accuracy and precision in 2D and 3D. �Experimental data indicated that there were areas of collateral damage (partially treated tissue) surrounding areas of completely treated tissue ranging which were between 46% and 78% of the completely treated volume. �In each case the heat transfer properties of the experimental system had a large impact on the area of treatment. �Variation in the temperature and viability response of photothermal therapy for specific laser and nanoparticle treatment parameters was quantified. �
����Conclusions: This research has brought an experimental cancer treatment procedure from experiments in cell monolayers to tests in ex-vivo tissue to analyze viability response. �The strengths of photothermal therapy such as its minimally invasive nature, and effectiveness at killing cells were experimentally demonstrated. � �This research has also developed the tools necessary to assess the spatial impact in vitro and lay the foundations for assessing spatial impact in vivo. �These tools may be used to assess other treatments beyond photothermal therapy, and serve as a basis for improving the analysis of biological systems both in vitro and in vivo.
Ph. D.
Bagley, Alexander Francis. "Optically-Active Nanomaterials for Diagnostic and Therapeutic Applications in Ovarian Cancer." Thesis, Harvard University, 2014. http://dissertations.umi.com/gsas.harvard:11517.
Full textKranz, Jennifer, Stefanie Schmidt, Cordula Lebert, Laila Schneidewind, Falitsa Mandraka, Mirjam Kunze, Sina Helbig, et al. "The 2017 Update of the German Clinical Guideline on Epidemiology, Diagnostics, Therapy, Prevention, and Management of Uncomplicated Urinary Tract Infections in Adult Patients. Part II: Therapy and Prevention." Karger, 2018. https://tud.qucosa.de/id/qucosa%3A70643.
Full textSpies, Jan-Peter [Verfasser], Alexander L. [Gutachter] Gerlach, and Charlotte [Gutachter] Hanisch. "PTSD in German Armed Forces service members – from diagnostics to therapy / Jan-Peter Spies ; Gutachter: Alexander L. Gerlach, Charlotte Hanisch." Köln : Universitäts- und Stadtbibliothek Köln, 2021. http://d-nb.info/1233426486/34.
Full textKulyk, Olena. "Light-tissue interactions for developing portable and wearable optoelectronic devices for sensing of tissue condition, diagnostics and treatment in photodynamic therapy (PDT)." Thesis, University of St Andrews, 2016. http://hdl.handle.net/10023/13199.
Full textRadziej, Katharina [Verfasser], Jürgen [Akademischer Betreuer] Beckmann, Anna [Gutachter] Buchheim, Jürgen [Gutachter] Beckmann, and Claas [Gutachter] Lahmann. "Psychopathological precursors and sequelae of functional vertigo and dizziness disorders : From diagnostics to therapy / Katharina Radziej ; Gutachter: Anna Buchheim, Jürgen Beckmann, Claas Lahmann ; Betreuer: Jürgen Beckmann." München : Universitätsbibliothek der TU München, 2019. http://d-nb.info/1187443883/34.
Full textSundberg, Åsa Liljegren. "Tumour Targeting Using Radiolabelled EGF Conjugates : Preclinical Studies." Doctoral thesis, Uppsala University, Biomedical Radiation Sciences, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-4201.
Full textTumour targeted radiotherapy is an appealing approach for treatment of disseminated tumour cells. A targeting agent that specifically binds to a structure on tumour cells is then used to transport therapeutically relevant radionuclides. The epidermal growth factor receptor, EGFR, is overexpressed on tumour cells in several malignancies, e.g. highly malignant gliomas. In this thesis, three types of radiolabelled EGF-conjugates, aimed for targeting to EGFR-expressing tumour cells, were developed and studied: EGF-dextran labelled with 125I, EGF labelled with 211At, and two EGF-chelates, DTPA-EGF and Bz-DTPA-EGF, labelled with the radioactive metals 111In and 177Lu.
The targeting properties of radioiodinated EGF-dextran were first studied in cultured glioma cells. Radioiodine coupled to the dextran part of EGF-dextran was retained in cells appreciably longer than radioiodine coupled to EGF. This can give about 100 times increased radiation dose to tumour cells.
Targeting with 211At-EGF was investigated in combination with the tyrosine kinase inhibitor gefitinib (Iressa™, ZD1839). The uptake of 211At-EGF in EGFR-expressing tumour cells increased with increasing gefitinib concentrations. This was the case for both gefitinib-resistant and gefitinib-sensitive cell lines. The effect of the combined treatment on cell survival, however, differed between the cell lines in an unexpected way. In gefitinib resistant cells, combined treatment decreased cell survival approximately 3.5 times relative to 211At-EGF treatment alone. In gefitinib sensitive cells, however, combined treatment increased the cell survival (i.e. a protective effect).
The EGF-chelates studied ([111In]DTPA-EGF, [111In]Bz-DTPA-EGF and [177Lu]Bz-DTPA-EGF) all bound specifically with high affinity (Kd≈2 nM) to EGFR on cultured glioma cells. They were internalised after binding, and the cellular retention of radionuclides was high (60% remained after 45 h). A biodistribution study in mice showed that liver and kidneys accumulated a majority of the radioactivity. The EGF-chelates bound EGFR specifically also in vivo. A tumour-to-blood ratio of 25 was achieved in a preliminary study.
Alves, Renata Ramos. "Diadococinesia oral em crianças com e sem transtorno fonológico." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/8/8139/tde-07072011-130100/.
Full textThe oral diadochokinesia (DDK) is a helpful measure for the production of speech sounds that evaluates the oral motor skills, providing a mean of assessing the development of neuromotor maturation and integration of the individual. This study aimed to describe the performance of children with and without phonological disorders in DDK tasks, and also verifying the relationship between phonological processes and the index PCC-R. The study included 124 subjects, aged 5 years and 10:8, divided into subgroups according to age and diagnosis: children without phonological disorders-Control Group (CG) 5 to 7:11 years, CG 8 to 10:08 years; children with phonological disorders-Research Group (RG) 5 to 7:11, RG 8 to 10:08. The DDK was assessed by repeating sequences of Pa, Ta, Ka, Pataka, Aí, Aú, Iú, and the rates were calculated in sequence per second and percentage of errors. The results pointed that, regardless of the sequence tested, no significant differences between the genders of the subjects were found. The children from the RG had higher average percentage of error in the sequences production, however, statistic difference was noted only in the sequence Pataka. In sequences Ta, Ka and Aú, regardless of group or gender, children of 5 to 7:11 years had a mean repetition of sequences per second lower than children of 8 to 10:08 years. In Pataka this progression was found only in CG. The children from the RG 8 to 10:08 years, compared with GC 8 to 10:08 years, produced less sequence per second in the sequence Pataka, so was possible to establish a cutoff value for this age group: 1,4 sequences per second. This value indicated that subjects below the cutoff have lower PCC-R and produce more phonological processes of Fricative Devoicing and Liquid Simplification in the Imitation test and Plosive Devoicing in the Naming test. It was concluded that children with phonological disorder exhibit different performance in relation to the production of repeated and alternated movements. The sequence that best identified this difference was Pataka, showing that this test may be an important tool for the diagnosis of TF.
Short, Robert Franklin. "Novel approaches in imaging and image-guided therapy microfabrication, quantitative diagnostic methods, and a model of lymphangiogenesis /." Connect to resource, 2005. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1117553725.
Full textTitle from first page of PDF file. Document formatted into pages; contains xvi, 218 p.; also includes graphics (some col.). Includes bibliographical references (p. 200-218). Available online via OhioLINK's ETD Center
Westphal, Maximillian. "Investigation of low energy, alternative X-ray sources and their interactions with multi-Z materials for theranostics." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1571133365330023.
Full textKessler, Mariella Lena [Verfasser], Georg [Akademischer Betreuer] Berding, Peter [Akademischer Betreuer] Behrens, and Kirsten [Akademischer Betreuer] Müller-Vahl. "Improved understanding of the pathophysiology and therapy of hearing impairment based on functional and molecular diagnostics using emission tomography / Mariella Lena Kessler ; Akademische Betreuer: Georg Berding, Peter Behrens, Kirsten Müller-Vahl ; Hannover Biomedical Research School, Klinik für Nuklearmedizin." Hannover : Bibliothek der Medizinischen Hochschule Hannover, 2019. http://d-nb.info/1201612586/34.
Full textKessler, Mariella [Verfasser], Georg [Akademischer Betreuer] Berding, Peter [Akademischer Betreuer] Behrens, and Kirsten [Akademischer Betreuer] Müller-Vahl. "Improved understanding of the pathophysiology and therapy of hearing impairment based on functional and molecular diagnostics using emission tomography / Mariella Lena Kessler ; Akademische Betreuer: Georg Berding, Peter Behrens, Kirsten Müller-Vahl ; Hannover Biomedical Research School, Klinik für Nuklearmedizin." Hannover : Bibliothek der Medizinischen Hochschule Hannover, 2019. http://d-nb.info/1201612586/34.
Full textWittchen, Hans Ulrich. "Klinische Psychologie und Verhaltenstherapie - zwischen Aufstieg und Erosion." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2013. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-91232.
Full textThis paper discusses progress and erosion aspects of c1inical psychology and behavior therapy in Germany from three interrelated perspectives: (a) the relationship of behavior therapy and c1inical psychology to other basic and applied psychological disciplines as weIl as neighboring disciplines, (b) the transfer problems from the scientific fields to practice, and (c) the problem of quality assurance in practice and postgraduate education. Specific emphasis is laid on a discussion of the field of behavioral medicine, as an example for well-integrated and coordinated research and practice activities; health psychology as an example for deficient communication patterns with clinical psychology and behavior therapy, and psychotherapy as an example for erosion in research, education and practice. The paper strongly recommends a more dominant steering role of clinical psychology as the most comprehensive scientific discipline. This steering role, however, would also require a considerably expanded infrastructure of clinical psychology departments in universities together with several mechanisms (competence enhancement, consensus conferences, development of postgraduate education guidelines, quality assurance activities, coordination) to be able to fulfill this mission. The paper also suggests the more frequent use of standardized treatment manuals in postgraduate courses
Kunert, Christoph. "Entwicklung eines Multi-Leaf Faraday Cups zur Strahldiagnose in der Augentumortherapie." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät, 2015. http://dx.doi.org/10.18452/17153.
Full textProton therapy of uveal melanomas is primarily used for the treatment of tumors near critical structures (optic nerve) and in large tumors. The great advantage of protons is their sharply limited range in tissue, which leads to sharp defined dose fields in the eye and the dose absorbed by the healthy tissue around the tumor can be reduced. Therefore, the positioning of the patient and the radiation fields, as well as the regular control measurements in the eye tumor therapy requires an accuracy of 0.1 mm in water. A Multi-Leaf Faraday Cup (MLFC) gives the opportunity to measure the proton range relatively fast and accurate. The MLFC measures the differential fluence, which means the range profile of the proton beam. It consists of a stack of sheets, alternating conductive and insulating, and the penetrating protons bring their additional charge into the sheet in which they stop. By measuring the corresponding current in each conducting sheet at the same time, the MLFC can quickly measure the range of the protons. The task of this work is to develop a MLFC with respect to the requirements of the eye tumor therapy and to explore possible application potentials. Therefore, Monte Carlo calculations with MCNPX 2.6 and SRIM were conducted, various foil stacks were studied in air and in vacuum, different measurement electronics for measuring currents in the pA range in many channels simultaneously were tested, a system of degraders for a variable measuring range from 30 MeV to 70 MeV was developed and the corresponding measurement and control software was written in LabVIEW 2011. The accuracy of the range measurements was examined and it was shown that a quick energy measurement at different target stations can be made by the MLFC due to its mobility. In therapy, in addition to the determination of the maximum range of the proton beam, the regular monitoring of the modulation of the extended Bragg-curves is in principle possible.
Wittchen, Hans Ulrich. "Klinische Psychologie und Verhaltenstherapie - zwischen Aufstieg und Erosion." Karger, 1996. https://tud.qucosa.de/id/qucosa%3A26090.
Full textThis paper discusses progress and erosion aspects of c1inical psychology and behavior therapy in Germany from three interrelated perspectives: (a) the relationship of behavior therapy and c1inical psychology to other basic and applied psychological disciplines as weIl as neighboring disciplines, (b) the transfer problems from the scientific fields to practice, and (c) the problem of quality assurance in practice and postgraduate education. Specific emphasis is laid on a discussion of the field of behavioral medicine, as an example for well-integrated and coordinated research and practice activities; health psychology as an example for deficient communication patterns with clinical psychology and behavior therapy, and psychotherapy as an example for erosion in research, education and practice. The paper strongly recommends a more dominant steering role of clinical psychology as the most comprehensive scientific discipline. This steering role, however, would also require a considerably expanded infrastructure of clinical psychology departments in universities together with several mechanisms (competence enhancement, consensus conferences, development of postgraduate education guidelines, quality assurance activities, coordination) to be able to fulfill this mission. The paper also suggests the more frequent use of standardized treatment manuals in postgraduate courses.
Wittchen, Hans-Ulrich. "Klinische Psychologie und Verhaltenstherapie - zwischen Aufstieg und Erosion." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2012. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-99894.
Full textThis paper discusses progress and erosion aspects of c1inical psychology and behavior therapy in Germany from three interrelated perspectives: (a) the relationship of behavior therapy and c1inical psychology to other basic and applied psychological disciplines as weIl as neighboring disciplines, (b) the transfer problems from the scientific fields to practice, and (c) the problem of quality assurance in practice and postgraduate education. Specific emphasis is laid on a discussion of the field of behavioral medicine, as an example for well-integrated and coordinated research and practice activities; health psychology as an example for deficient communication patterns with clinical psychology and behavior therapy, and psychotherapy as an example for erosion in research, education and practice. The paper strongly recommends a more dominant steering role of clinical psychology as the most comprehensive scientific discipline. This steering role, however, would also require a considerably expanded infrastructure of clinical psychology departments in universities together with several mechanisms (competence enhancement, consensus conferences, development of postgraduate education guidelines, quality assurance activities, coordination) to be able to fulfill this mission. The paper also suggests the more frequent use of standardized treatment manuals in postgraduate courses
Wittchen, Hans-Ulrich. "Klinische Psychologie und Verhaltenstherapie - zwischen Aufstieg und Erosion." Karger, 1996. https://tud.qucosa.de/id/qucosa%3A26265.
Full textThis paper discusses progress and erosion aspects of c1inical psychology and behavior therapy in Germany from three interrelated perspectives: (a) the relationship of behavior therapy and c1inical psychology to other basic and applied psychological disciplines as weIl as neighboring disciplines, (b) the transfer problems from the scientific fields to practice, and (c) the problem of quality assurance in practice and postgraduate education. Specific emphasis is laid on a discussion of the field of behavioral medicine, as an example for well-integrated and coordinated research and practice activities; health psychology as an example for deficient communication patterns with clinical psychology and behavior therapy, and psychotherapy as an example for erosion in research, education and practice. The paper strongly recommends a more dominant steering role of clinical psychology as the most comprehensive scientific discipline. This steering role, however, would also require a considerably expanded infrastructure of clinical psychology departments in universities together with several mechanisms (competence enhancement, consensus conferences, development of postgraduate education guidelines, quality assurance activities, coordination) to be able to fulfill this mission. The paper also suggests the more frequent use of standardized treatment manuals in postgraduate courses.
Chin, Lee. "Optical diagnostics toolbox for laser interstitial thermal therapy." 2007. http://link.library.utoronto.ca/eir/EIRdetail.cfm?Resources__ID=742431&T=F.
Full textFales, Andrew. "Development of Plasmonic Nanoplatforms for Diagnostics, Therapy, and Sensing." Diss., 2016. http://hdl.handle.net/10161/12871.
Full textRecent advances in nanotechnology have led to the application of nanoparticles in a wide variety of fields. In the field of nanomedicine, there is great emphasis on combining diagnostic and therapeutic modalities into a single nanoparticle construct (theranostics). In particular, anisotropic nanoparticles have shown great potential for surface-enhanced Raman scattering (SERS) detection due to their unique optical properties. Gold nanostars are a type of anisotropic nanoparticle with one of the highest SERS enhancement factors in a non-aggregated state. By utilizing the distinct characteristics of gold nanostars, new plasmonic materials for diagnostics, therapy, and sensing can be synthesized. The work described herein is divided into two main themes. The first half presents a novel, theranostic nanoplatform that can be used for both SERS detection and photodynamic therapy (PDT). The second half involves the rational design of silver-coated gold nanostars for increasing SERS signal intensity and improving reproducibility and quantification in SERS measurements.
The theranostic nanoplatforms consist of Raman-labeled gold nanostars coated with a silica shell. Photosensitizer molecules for PDT can be loaded into the silica matrix, while retaining the SERS signal of the gold nanostar core. SERS detection and PDT are performed at different wavelengths, so there is no interference between the diagnostic and therapeutic modalities. Singlet oxygen generation (a measure of PDT effectiveness) was demonstrated from the drug-loaded nanocomposites. In vitro testing with breast cancer cells showed that the nanoplatform could be successfully used for PDT. When further conjugating the nanoplatform with a cell-penetrating peptide (CPP), efficacy of both SERS detection and PDT is enhanced.
The rational design of plasmonic nanoparticles for SERS sensing involved the synthesis of silver-coated gold nanostars. Investigation of the silver coating process revealed that preservation of the gold nanostar tips was necessary to achieve the increased SERS intensity. At the optimal amount of silver coating, the SERS intensity is increased by over an order of magnitude. It was determined that a majority of the increased SERS signal can be attributed to reducing the inner filter effect, as the silver coating process moves the extinction of the particles far away from the laser excitation line. To improve reproducibility and quantitative SERS detection, an internal standard was incorporated into the particles. By embedding a small-molecule dye between the gold and silver surfaces, SERS signal was obtained both from the internal dye and external analyte on the particle surface. By normalizing the external analyte signal to the internal reference signal, reproducibility and quantitative analysis are improved in a variety of experimental conditions.
Dissertation
Brückmann, Nadine E. [Verfasser]. "Polymer-metallodrug conjugates for cancer diagnostics and therapy / submitted by Nadine E. Brückmann." 2010. http://d-nb.info/1012883612/34.
Full textAmendoeira, Ana Filipa Patrício. "Steroid-BODIPY theranostics: Receptor-mediated cell uptake and applications in cancer Diagnostics and therapy." Master's thesis, 2020. http://hdl.handle.net/10362/103277.
Full textMaňáková, Kateřina. "Návrh terapeutických materiálů pro klienty s diagnózou afázie." Master's thesis, 2015. http://www.nusl.cz/ntk/nusl-335381.
Full text"Leveraging Artificial Intelligence to Find Previously Undiscovered Patterns in Tumor Molecular Data to Aid in Diagnosis and Therapy Selection." Doctoral diss., 2020. http://hdl.handle.net/2286/R.I.62903.
Full textDissertation/Thesis
Doctoral Dissertation Molecular and Cellular Biology 2020
Leite, João Maria Silva Pinto. "Multifunctional cellulose nanoparticles for potential application on the diagnosis and treatment of cancer." Master's thesis, 2021. http://hdl.handle.net/10773/30892.
Full textNanobeads biopoliméricas destacam-se como sendo nanomateriais biocompatíveis, biodegradáveis e quimicamente versáteis para diversas aplicações biomédicas. Neste âmbito, a celulose tem demonstrado um potencial crescente para estas aplicações devido à sua abundância de grupos hidroxilo e consequente aptidão para ser funcionalizada. Neste contexto, o objetivo da presente dissertação consiste na preparação e caracterização de nanobeads multifuncionais à base de celulose para potencial aplicação no diagnóstico e tratamento do cancro. Nanobeads esféricas à base de celulose foram produzidas por nanoprecipitação e funcionalizadas com nanopartículas de ouro (AuNPs) que podem desempenhar um papel duplo como agente de contraste para imagiologia e agente terapêutico. As nanobeads de celulose foram preparadas usando acetato de celulose (CA) como matéria-prima inicial em vez de usar diretamente a celulose devido à sua insolubilidade na maioria dos solventes convencionais. Deste modo, as nanobeads de CA foram obtidas por nanoprecipitação através da dissolução e regeneração do CA, seguida de uma hidrólise alcalina para a obtenção das nanobeads de celulose. Posteriormente, desenvolveram-se sistemas híbridos de nanobeads de celulose/AuNPs seguindo duas metodologias distintas, nomeadamente, por regeneração de CA na presença de AuNPs e subsequente hidrólise alcalina, ou pela redução in situ do sal de ouro na presença das nanobeads de celulose. Os sistemas híbridos foram posteriormente caracterizados por microscopia eletrónica de varrimento (SEM), microscopia eletrónica de varrimento em modo de transmissão (STEM), espectroscopia de infravermelho com reflexão total atenuada e transformada de Fourier (ATR-FTIR), e espectroscopia de ultravioleta-visível (UV-vis). Em suma, a produção de nanobeads de celulose foi conseguida dissolvendo o CA em acetona e subsequente regeneração usando água como o anti solvente, seguida de hidrólise alcalina. O sucesso da hidrólise foi comprovado por espectroscopia de ATR-FTIR e SEM, enquanto que a síntese das AuNPs foi confirmada por espectroscopia de UV-vis e STEM. A morfologia e o tamanho dos sistemas híbridos foram avaliados por SEM e STEM, os quais confirmaram a produção de sistemas híbridos de nanobeads de celulose/AuNPs com tamanho médio de 415±187 nm para as nanobeads de celulose e 15±3 nm para as AuNPs. Adicionalmente, a citotoxicidade in vitro dos sistemas híbridos foi avaliada em células humanas pigmentadas de melanoma (MNT-1) ao fim de 24 h. Os resultados mostraram que o sistema híbrido possui uma toxicidade celular dependente da concentração, alcançando 81.6±4.5% de viabilidade celular para 39.0 μg mL–1 do híbrido. Deste modo, uma concentração mais elevada promoverá uma maior resposta citotóxica nas células cancerígenas. Todos os resultados obtidos evidenciam o potencial dos sistemas híbridos de nanobeads de celulose/AuNPs para aplicação no diagnóstico e terapia do cancro.
Mestrado em Materiais e Dispositivos Biomédicos
Malabi, Rudzani. "Laser-based technologies for targeted drug delivery and label-free diagnostics in HIV-1." Thesis, 2019. http://hdl.handle.net/10500/27259.
Full textCollege of Engineering, Science and Technology
Ph. D. (Physics)
Mahomed, Nasreen. "Diagnostic utility of chest X-rays in childhood community acquired pneumonia in the era of bacterial conjugate vaccines, antiretroviral therapy, molecular diagnostics and computer aided diagnosis." Thesis, 2017. http://hdl.handle.net/10539/23155.
Full textIntroduction: Pneumonia is among the leading infectious causes of morbidity and mortality in children under 5 years globally. The chest X-ray remains the most readily available and most common imaging modality for the assessment of childhood pneumonia. Chest X-ray quality assurance is important to maintain high image quality, allowing for more accurate diagnosis. Chest X-ray patterns in a high HIV prevalence setting in children hospitalized with pneumonia in the era of bacterial conjugate vaccines has not been described. Furthermore the association between chest X-ray findings and microbiological etiology using novel models is important. Standardization of chest X-ray interpretation is important to allow comparison of research findings between studies and has been proposed by the World Health Organisation (WHO) as a measure of bacterial vaccine efficacy (VE). The role of Computer Aided Diagnosis (CAD) for chest X-ray interpretation is important, especially in countries with limited radiologists. Objectives: In this thesis we investigated the quality of chest X-rays and the impact of quality assurance activities in the Pneumonia Etiology Research for Child Health (PERCH) study, from 9 sites in 7 countries (Bangladesh, the Gambia, Kenya, Mali, South Africa, Thailand and Zambia), by quantifying radiographic errors through use of a customized quality assessment form. Within the context of the PERCH South African site, we compared chest X-ray patterns in HIV-unexposed, HIV- exposed-uninfected (HEU) and HIV-infected children hospitalized with WHO-defined severe or very severe community acquired pneumonia. Further, we evaluated the association of chest X-ray patterns with clinical parameters and its association with the PERCH Quantitative Analysis (PQA) model predicted probability of infection by a class or specific pathogens. Lastly, we evaluated the utility of CAD for identifying chest X-ray primary end-point pneumonia (CXR-PEP) versus non CXR-PEP compared to a consensus human interpretation as a reference standard. Results: A total of 747 chest X-rays in 9 PERCH sites had chest X-ray quality assessment. Collimation performed the worse of the 6 parameters, with 5 out of the 9 sites being graded sub-optimally for this. Three of the 9 sites showed a significant improvement in chest X-ray quality using a test for trend analysis. At the South African PERCH site, 920 cases were enrolled over two years, including 858 children with interpretable chest X-rays. The commonest finding was CXR-PEP, prevalent among 38% HIV-unexposed children, 33% HEU children and 60% of HIV-infected children, which was consistent between different age categories. CXR-PEP was twice as common in HIV-infected (OR 2.5; 95% CI 1.6-3.8) compared with these HIV-unexposed children. Clinical and laboratory features independently associated with CXR-PEP included the presence of severe malnutrition, fever and CRP > 40mg/dL. CXR-PEP was associated with the composite outcome of mechanical ventilation or death. However there was no single clinical or laboratory parameter that had both high sensitivity and specificity to discriminate between CXR-PEP from non CXR-PEP cases. HIV-unexposed children with a PQA model probability index > 0.5 for bacterial etiology had 2-fold greater odds (95% CI 1.1-4.1) for CXR-PEP compared to non CXR-PEP, and similarly HIV-unexposed children with microbiologically confirmed pneumococcal pneumonia (MCPP) had 3-fold greater odds (95% CI 1.3-6.7) of CXR-PEP. HIV-infected children with a PQA model probability index > 0.5 for respiratory viral etiology and PQA model probability index > 0.5 for Pneumocystis jiroveci etiology trended to have a greater odds for CXR-PEP vs non CXR-PEP. Using CAD4WHOKids for the 858 interpretable chest X-rays, for CXR-PEP versus non CXR-PEP, CAD4WHOKids had a sensitivity of 76%, specificity of 80% and area under the ROC curve of 0.850 (95% CI 0.823-0.876) compared to the radiologist consensus reading. Conclusion: Chest X-ray quality, in particular collimation was suboptimal in 7 resource limited countries, in children hospitalized for WHO defined severe or very severe pneumonia. CXR-PEP remains the most common chest X-ray abnormality in HIV-unexposed, HEU and HIV-infected children under 5 years of age hospitalized for WHO-defined severe or very severe pneumonia, even in the era of routine HiB and PCV immunization. Our findings support the literature that CXR-PEP is of limited use in HIV-infected children as an outcome measure in bacterial VE studies, due to opportunistic infections like Pneumocystis jiroveci pneumonia and respiratory viral infections contributing to CXR-PEP. CAD is promising as a diagnostic tool for identifying WHO defined CXR-PEP in bacterial VE trials and pneumonia epidemiological studies.
MT2017
Neugebauerová, Štěpánka. "Návrhy materiálů pro klienty klubu Afázie." Master's thesis, 2020. http://www.nusl.cz/ntk/nusl-412091.
Full textBerenguer, Albiñana Carlos. "Příprava inhibitorů Neuraminidasy vhodných pro teranostiku." Doctoral thesis, 2018. http://www.nusl.cz/ntk/nusl-451117.
Full textPluhařová, Apolena. "Laboratorní funkční diagnostika malabsorpčních syndromů se zaměřením na laktózovou intoleranci." Master's thesis, 2021. http://www.nusl.cz/ntk/nusl-447321.
Full textKrajíček, Tomáš. "Patelofemorální bolestivý syndrom a jeho ovlivnění patelárním tapingem." Master's thesis, 2008. http://www.nusl.cz/ntk/nusl-291353.
Full textMaturová, Barbora. "Diagnostické a terapeutické postupy v intervenci u osob s afázií." Master's thesis, 2021. http://www.nusl.cz/ntk/nusl-445865.
Full textŠpinková, Tereza. "Syndrom CSA u dětí." Master's thesis, 2011. http://www.nusl.cz/ntk/nusl-295975.
Full textLemb, Johanna Berta. "Therapie und Nachsorge des differenzierten Schilddrüsenkarzinoms: Eine Risikofaktoren-basierte Analyse der Göttinger Patienten seit 1990." Doctoral thesis, 2010. http://hdl.handle.net/11858/00-1735-0000-0006-AF87-1.
Full textVoleský, Kryštof. "Analýza rizikových faktorů pro vznik tendinopatií u běžců - literární rešerše." Master's thesis, 2021. http://www.nusl.cz/ntk/nusl-447443.
Full textRosová, Anna. "Roztroušená skleróza: kortikoidní a biologická léčba, význam pedagogiky v rehabilitaci." Master's thesis, 2016. http://www.nusl.cz/ntk/nusl-343261.
Full textBejšáková, Kristina. "Využití pomůcek systému pedagogiky Marie Montessori u osob s Downovým syndromem." Master's thesis, 2018. http://www.nusl.cz/ntk/nusl-372656.
Full textŠobáňová, Jindřiška. "Vliv fyziotepie na funkci posturální motoriky u výkonnostních sportovců (tenistů)." Master's thesis, 2008. http://www.nusl.cz/ntk/nusl-295205.
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