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Dissertations / Theses on the topic 'Computational Drug Delivery'

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1

Balakrishnan, Brinda. "Computational model of local intravascular drug delivery." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/39570.

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Thesis (Ph. D.)--Harvard-MIT Division of Health Sciences and Technology, 2007.<br>Includes bibliographical references.<br>Drug-eluting stents (DES) virtually eradicate the clinical phenomena of vessel restenosis; yet, they also increase the short and long term risks for stent thrombosis. To improve their safety and efficacy, it is critical to examine factors that alter local biologic outcome. The central hypothesis of this thesis is that local efficacy and toxicity are in part determined by the duration of drug exposure and local arterial drug concentrations. This thesis investigates how facto
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2

Mackenzie, R. C. "Computational modelling of polymer-based drug delivery systems." Thesis, University of Nottingham, 2015. http://eprints.nottingham.ac.uk/28852/.

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Polymer-based drug delivery systems have fantastic potential in chemotherapy as they can reduce drug side effects, help in patient compliance and provide targeting. Nanoprecipitation is used to encapsulate small drug molecules into polymer nanoparticles to form a drug delivery system. A major obstacle in polymer-based drug delivery systems reaching the clinic is their inability to load sufficient drug molecules. Little is known about the processes involved in the encapsulation of drug molecules into these delivery systems. An insight into the processes that govern the formation of these partic
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Lucato, Arianna <1991&gt. "Computational design of novel protein-drug delivery systems." Master's Degree Thesis, Università Ca' Foscari Venezia, 2019. http://hdl.handle.net/10579/16136.

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Cancer is one of the leading causes of death throughout the world and the number of cases per year is reported to rise to 23.6 million by 2030. Amongst the different types of treatments available, chemotherapy represent the most common one. Despite its proven capability of tumour shrinkage and prevention from coming back after surgery, several factors limit its potential. These include poor bioavailability and biodistribution of the majority of the chemotherapeutic agents commonly used, the high dose required, their numerous adverse side effects, the development of drug resistance and non-spec
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4

GONCALVES, REINALDO BELLINI. "THEORETICAL AND COMPUTATIONAL MODELING OF DENDRIMERS FOR DRUG DELIVERY." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2012. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=21310@1.

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PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO<br>COORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR<br>PROGRAMA DE EXCELENCIA ACADEMICA<br>Neste trabalho inicialmente foram modeladas as estruturas do dendrímero PAMAM G4 em diferentes estados de protonação utilizando-se o programa Hyperchem. A seguir essas estruturas foram inseridas em uma caixa d’água e simuladas por dinâmicamolecular, tendo sido observado um aumento de volume do dendrímero à medida que o grau de protonação foi aumentado, com a formação de uma estrutura mais aberta comparativamente à do dendrímero não protonado.
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5

Samsudin, Mohd Firdaus. "Improving oral drug delivery : computational studies of proton dependent oligopeptide transporters : computational studies of peptide transporters." Thesis, University of Oxford, 2015. https://ora.ox.ac.uk/objects/uuid:ce400815-fd55-49dc-8f43-3f620d3e132e.

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Proton dependent oligopeptide transporters (POTs) play a central role in nitrogen homeostasis by coupling the uptake of dipeptides and tripeptides to the proton electrochemical gradient across the plasma membrane. In human, members of this transporter family, PepT1 and PepT2, are critical modulators of drug pharmacokinetics as they facilitate the uptake and retention of numerous orally administered drugs including the β-lactam antibiotics. Rationally designing drugs to target these transporters is therefore an attractive approach to improving bioavailability. To this end, the binding of peptid
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6

Tian, Geng. "Vapor Transport and Aerosol Dynamics in the Respiratory Airways." VCU Scholars Compass, 2011. http://scholarscompass.vcu.edu/etd/2442.

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Predicting vapor transport and aerosol dynamics in the respiratory airways is important for analyzing both environmental exposure and respiratory drug delivery. A large number of analytical models, computational studies, and experiments on vapor and aerosol transport in the respiratory tract have been conducted previously. However, a number of critical questions remain unanswered. In this study, computational fluid dynamics (CFD) is primarily employed with frequent comparisons to existing and new experimental data sets to address previously unanswered issues related to the transport of vapors
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7

Jalili, Vahid. "Application of CFD in designing a drug delivery mixing chamber : an experimental and computational study." Thesis, University of Greenwich, 2004. http://gala.gre.ac.uk/6196/.

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The purpose of this novel research was to understand the flow behaviour and improve the efficiency of the Volumatic™ spacer, using a combination of engineering tools such as CFD, Laser Doppler Anemometry (LDA) and Row visualization techniques. The lack of information on the Volumatic /A/ spacer meant that, initial understanding had to be gained into the flow behaviour within the spacer. This was initially performed by injecting air carrying a tracer concentration to represent t li<^drug portion of the medicine. The efficiency (volume of drug collected at the mouth piece) was found to be about
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8

Malik, Jennifer E. "Using Computational Modeling Techniques to Identify and Target Viable Drug Delivery Protocols to Treat Chronic Otitis Media." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1534780839820268.

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9

Sourmaidou, Damiani. "Computational nanoscience and molecular modelling of shock wave interactions with biological membranes." Thesis, Cranfield University, 2011. http://dspace.lib.cranfield.ac.uk/handle/1826/7283.

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Lateral diffusion of membrane components (lipids and proteins) is an important membrane property to measure since the essential process of absorption of anti-cancer and other drugs -some of which are not soluble in lipids and therefore would not be able to penetrate the cell membrane through passive diffusion- lies on it. In particular, the procedure of diffusion into the cell cytoplasm is reliant on free volumes in the membrane (passive diffusion) as well as carrier proteins (facilitated diffusion). By enhancing the mobility of lipids and/or proteins, the possibility of the carrier protein to
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10

Guduru, Rakesh. "Bionano Electronics: Magneto-Electric Nanoparticles for Drug Delivery, Brain Stimulation and Imaging Applications." FIU Digital Commons, 2013. http://digitalcommons.fiu.edu/etd/979.

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Nanoparticles are often considered as efficient drug delivery vehicles for precisely dispensing the therapeutic payloads specifically to the diseased sites in the patient’s body, thereby minimizing the toxic side effects of the payloads on the healthy tissue. However, the fundamental physics that underlies the nanoparticles’ intrinsic interaction with the surrounding cells is inadequately elucidated. The ability of the nanoparticles to precisely control the release of its payloads externally (on-demand) without depending on the physiological conditions of the target sites has the potential to
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11

Windes, Peter. "Computational Modeling of Intracapillary Bacteria Transport in Tumor Microvasculature." Thesis, Virginia Tech, 2016. http://hdl.handle.net/10919/77502.

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The delivery of drugs into solid tumors is not trivial due to obstructions in the tumor microenvironment. Innovative drug delivery vehicles are currently being designed to overcome this challenge. In this research, computational fluid dynamics (CFD) simulations were used to evaluate the behavior of several drug delivery vectors in tumor capillaries—specifically motile bacteria, non-motile bacteria, and nanoparticles. Red blood cells, bacteria, and nanoparticles were imposed in the flow using the immersed boundary method. A human capillary model was developed using a novel method of handling de
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12

Calmet, Hadrien. "Large-scale CFD and micro-particles simulations in a large human airways under sniff condition and drug delivery application." Doctoral thesis, Universitat Politècnica de Catalunya, 2020. http://hdl.handle.net/10803/670232.

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As we inhale, the air drawn through our nose undergoes successive accelerations and decelerations as it is turned, split, and recombined before splitting again at the end of the trachea as it enters the bronchi. Fully describing the dynamic behaviour of the airflow and how it transports inhaled particles poses a severe challenge to computational simulations. The dynamics of unsteady flow in the human large airways during a rapid and short inhalation (a so-called sniff) is a perfect example of perhaps the most complex and violent human inhalation inflow. Combining the flow solution with a Lagra
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13

Lu, Dan. "Tumor priming enhances particle delivery to and transport in solid tumors." Columbus, Ohio : Ohio State University, 2006. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1144936804.

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14

Dreaden, Erik Christopher. "Chemistry, photophysics, and biomedical applications of gold nanotechnologies." Diss., Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/51320.

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Gold nanoparticles exhibit a combination of physical, chemical, optical, and electronic properties unique from all other nanotechnologies. These structures can provide a highly multifunctional platform with which to diagnose and treat diseases and can dramatically enhance a variety of photonic and electronic processes and devices. The work herein highlights some newly emerging applications of these phenomena as they relate to the targeted diagnosis and treatment of cancer, improved charge carrier generation in photovoltaic device materials, and strategies for enhanced spectrochemical analysis
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15

Hubbard, M. E., M. Jove, Paul M. Loadman, Roger M. Phillips, Christopher J. Twelves, and S. W. Smye. "Drug delivery in a tumour cord model: a computational simulation." 2017. http://hdl.handle.net/10454/12057.

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Yes<br>The tumour vasculature and microenvironment is complex and heterogeneous, contributing to reduced delivery of cancer drugs to the tumour. We have developed an in silico model of drug transport in a tumour cord to explore the effect of different drug regimes over a 72 h period and how changes in pharmacokinetic parameters affect tumour exposure to the cytotoxic drug doxorubicin. We used the model to describe the radial and axial distribution of drug in the tumour cord as a function of changes in the transport rate across the cell membrane, blood vessel and intercellular permeability, flo
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16

Groh, C. M., M. E. Hubbard, P. F. Jones, et al. "Mathematical and computational models of drug transport in tumours." 2014. http://hdl.handle.net/10454/10002.

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No<br>The ability to predict how far a drug will penetrate into the tumour microenvironment within its pharmacokinetic (PK) lifespan would provide valuable information about therapeutic response. As the PK profile is directly related to the route and schedule of drug administration, an in silico tool that can predict the drug administration schedule that results in optimal drug delivery to tumours would streamline clinical trial design. This paper investigates the application of mathematical and computational modelling techniques to help improve our understanding of the fundamental mech
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17

Huynh, Loan. "Rational Design of Drug Formulations using Computational Approaches." Thesis, 2012. http://hdl.handle.net/1807/35730.

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Theory has been used to complement experiment in the development of both drugs and delivery systems. Theoretical methods are capable of identifying the molecular basis of drug formulation inadequacies and systematic theoretical studies may suggest fruitful avenues for material modification. This thesis highlights the utility of computer-based theoretical calculations for guiding the design of drug formulations and enhancing material-drug compatibility and stability. Specifically, the present work explores the applications of semi-empirical methods and atomistic molecular dynamics (MD) simulati
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18

(9188927), seyedalireza abootorabi. "COMPUTATIONAL FLUID DYNAMICS FOR MODELING AND SIMULATION OF INTRAOCULAR DRUG DELIVERY AND WALL SHEAR STRESS IN PULSATILE FLOW." Thesis, 2020.

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<div>The thesis includes two application studies of computational fluid dynamics. The first is new and efficient drug delivery to the posterior part of the eye, a growing health necessity worldwide. Current treatment of eye diseases, such as age related macular degeneration (AMD), relies on repeated intravitreal injections of drug-containing solutions. Such a drug delivery has significant drawbacks, including short drug life, vital medical service, and high medical costs. In this study, we explore a new approach of controlled drug delivery by introducing unique porous implants. Computational</div><
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19

Abootorabi, Seyedalireza. "Computational Fluid Dynamics for Modeling and Simulation of Intraocular Drug Delivery and Wall Shear Stress in Pulsatile Flow." Thesis, 2020. http://hdl.handle.net/1805/23571.

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Indiana University-Purdue University Indianapolis (IUPUI)<br>The thesis includes two application studies of computational fluid dynamics. The first is new and efficient drug delivery to the posterior part of the eye, a growing health necessity worldwide. Current treatment of eye diseases, such as age-related macular degeneration (AMD), relies on repeated intravitreal injections of drug-containing solutions. Such a drug delivery has significant cant drawbacks, including short drug life, vital medical service, and high medical costs. In this study, we explore a new approach of controlled drug
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