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A near infrared holographic glucose sensor for diabetes managementVezouviou, Evangelia January 2014 (has links)
No description available.
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Estimation of blood glucose variations using noninvasive metabolic measurementsLee, Chi-yeung., 李子洋. January 2007 (has links)
published_or_final_version / abstract / Electrical and Electronic Engineering / Master / Master of Philosophy
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A community based approach to glucose optimisation for type 2 diabetesPotts, Nicolette January 2003 (has links)
Background: Attaining optimal glucose control in type 2 diabetes (T2DM) is essential to minimise complications, but difficult to achieve in practice with declining β-cell function in patients. Aim: To evaluate the efficacy and feasibility of a protocol-led, treat-to-target approach emphasising earlier oral hypoglycaemic agent (OHA) combination and insulin use to target basal and prandial glucose in primary care. Methods: T2DM patients aged 40-75 years, with glycosylated haemoglobin (HbA<sub>1C</sub>) 6.4-10.0% on diet or oral monotherapy in 7 practices were asked to participate in a protocol-led, target-driven programme of care using early OHA and insulin therapy combinations to target basal and prandial glucose. Recruited patients were randomised to pre-specified algorithms with monthly therapy adjustment aiming for fasting plasma glucose values (FPG) <6mmol/L and 2-hour post-prandial (PPG) <8mmol/L. Isophane or humalog insulin was added where glucose targets were not attained. All patients were reviewed at one year. Glucose, weight and cardiovascular (CVS) risk factor outcomes were measured and the feasibility, acceptability and safety of the programme evaluated with validated questionnaires. Results: 345 patients were studied. 60 participated in the glucose study and 285 received standard care. 65% of recruited patients were male, with mean (SD) age 61.0 (8.2) years, BMI 29.8 (5.3) kg/m2, HbA<sub>1C</sub> 7.5 (0.9)% and median (IQR) T2DM duration 3 (1-5) years. 41 completed the study. Glucose control was significantly improved in recruited compared to non-recruited patients with a mean overall 0.8% HbA<sub>1C</sub> reduction and 72% patients achieving HbA<sub>1C</sub><7% and 64% <6.5% at 1 year. Therapy use was also significantly increased with 50% requiring 3 therapies, 30% 2 and 10% monotherapy. 24 (59%) of recruited patients received isophane and 16 (39%) humalog to achieve targets. Glucose optimisation was achieved without significant hypoglycaemia or adverse events and patient quality of life (QoL) and therapy satisfaction remained high. CVS risk was reduced in recruited patients. Conclusions: A more structured, target-driven approach to glucose optimisation can successfully achieve normoglycaemia in a selected primary care T2DM population without significant adverse events, hypoglycaemia. or QoL impairment in patients. A principal barrier to wider implementation of this programme appears to be practice and patient participation.
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Optical biomedical sensor for the detection of blood-glucose concentrationsLing, Daniel Pham January 2005 (has links)
Thesis (M.S.)--University of Hawaii at Manoa, 2005. / Includes bibliographical references (leaves 88-90). / xii, 90 leaves, bound ill. (some col.) 29 cm
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Estimation of blood glucose variations using noninvasive metabolic measurementsLee, Chi-yeung. January 2007 (has links)
Thesis (M. Phil.)--University of Hong Kong, 2007. / Title proper from title frame. Also available in printed format.
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Blood Glucose Prediction Models for Personalized Diabetes ManagementFernando, Warnakulasuriya Chandima January 2018 (has links)
Effective blood glucose (BG) control is essential for patients with diabetes. This calls for an immediate need to closely keep track of patients' BG level all the time. However, sometimes individual patients may not be able to monitor their BG level regularly due to all kinds of real-life interference. To address this issue, in this paper we propose machine-learning based prediction models that can automatically predict patients BG level based on their historical data and known current status. We take two approaches, one for predicting BG level only using individual's data and second is to use a population data. Our experimental results illustrate the effectiveness of the proposed model.
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Experimentation and Multiphysical Modeling of Bioanalytical MicrodevicesShang, Junyi January 2019 (has links)
Bioanalytics involves quantitative measurements of complex biological samples that contain metabolites, DNA, RNA, and proteins. Efficient sample preparation for downstream analysis and sensitive detection of analytes can be achieved via bioanalytical microdevices. Fully realizing the potential of these devices requires tool characterization and bioprocess optimization, in addition to understanding device physics. Therefore, this thesis introduces multiphysical modeling and experimentation of microdevices, with applications to diabetes care and single-cell analysis.
To understand the physics of viscometric glucose microsensors, this thesis presents a model of the sensor, which couples the fluid flow with vibrating diaphragms. The model is used to predict the sensor response to glucose via theory of squeeze-film damping and vibrations of pre-stressed plate. A first-principle-based model resulting from the theory can be evaluated from the device's geometric and material properties, and quantitatively determines the device response to vibrational excitations at varying glucose concentrations.
Next, this thesis introduces a theoretical model for viscometric glucose microsensors that employ harmonic microcantilever oscillation in the sensing liquid. The presented model associates the unsteady Stokes equation with the motion of a bounded viscous liquid to understand the hydrodynamic impact on the cantilever. With a proper consideration of the viscosity and bounded geometry of liquid media, the model relaxes the thin-film assumption required for the diaphragm-based model, enabling an accurate representation of fluid-structure interactions based on fundamental structural vibration and fluid flow equations.
Next, this thesis presents an experimental exploration of a hydrogel-based affinity microsensor for glucose monitoring via dielectric measurements. The microsensor incorporates a synthetic hydrogel that is attached to the device surface via in situ polymerization, which eliminates mechanical moving parts required in the viscometric glucose sensors. Changes in the dielectric properties of the hydrogel when binding reversibly with glucose molecules have been measured using a MEMS capacitive transducer to determine the glucose concentration. Experimental results demonstrate that in a glucose concentration range of 0–500 mg/dL and with a resolution of 0.35 mg/dL or better, the microsensor exhibits a repeatable and reversible response, and can potentially be useful for continuous glucose monitoring in diabetes care.
Additionally, this thesis presents a microfluidic preprocessing method that integrates single-cell picking, lysing, reverse transcription and digital polymerase chain reaction to enable the isolation, tracking and gene expression analysis at single-cell level for individual cells. The approach utilizes a photocleavable bead-based microfluidic device to synthesize and deliver stable complementary DNA for downstream gene expression analysis, thereby allowing chip-based integration of multiple reactions and facilitating the minimization of sample loss or contamination.
Finally, this thesis ends with concluding remarks and directions of future work towards continuous glucose monitoring and high-throughput single-cell genetic analysis.
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Systematic review on self-monitoring of blood glucose for non-insulin-using type 2 diabetes patientsXiao, Shan, 肖珊 January 2012 (has links)
The increasing prevalence causes great burden to global health. Although there is not yet an agreement on the effect of SMBG for non-insulin-treating type 2 DM patients in comprehensive management, some guidelines recommended all diabetes patients should conduct SMBG.
This literature review of 5 meta-analyses and 13 randomized controlled clinical trials assessed the effectiveness of SMBG in glucose control (HbA1c), detection of hypoglycemia, non-glycemic outcomes and potential influence factors(duration of diabetes, baseline HaB1c level, SMBG frequency, SMBG duration, co-interventions) of SMBG efficacy on type 2 diabetes patients not using insulin.
The method of this literature review is through a comprehensive electronic literature search of Ovid MEDLINE, EMBASE, the Cochrane Library and China Journals Full-text Database. Both English and Chinese language literatures were reviewed. All meta-analysis and randomized controlled trials of type 2 diabetes non-insulin-using patients taking SMBG to improve the glycemic control and other outcomes were included. In these studies, absolute HbA1c reduction, recognized episodes of hypoglycemia, wellbeing, QALY, DALY, complication morbidity, mortality were used as outcome measures if available. A score list based on the PRISMA Statement was used to evaluate the quality of meta-analyses.
5 meta-analysis all reported a statistical significant but clinical modest-moderate difference in HbA1c reduction between SMBG and non-SMBG group, a new published randomized controlled trial with small cohort enrolled in none of the meta- analyses did not support this conclusion. Evidence showed frequency of SMBG did not influence the efficacy of SMBG, co-interventions as education/consultation, regimen change played a positive roll on SMBG efficacy. Whether baseline HbA1c, duration of diabetes or SMBG itself have an effect on SMBG efficacy was still unknown. There is inadequate evidence of SMBG efficacy of detection of hypoglycemia of patient-oriented outcomes. No eligible Chinese article was defined to enroll in this review.
This review did not support to suggest all type 2 diabetes patients not using insulin to conduct SMBG at the frequency the guidelines recommended. Carefully designed and longer-term trials are needed to obtain evidence that is more robust. Further investigation would provide more evidence of the characteristics of potential influence factors, which may help to define the specific population or optimal mode that guarantee the greatest efficacy of SMBG. / published_or_final_version / Public Health / Master / Master of Public Health
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Responsive polymer-coated magnetic acoustic resonator sensors (MARS)Hu, Ruifen January 2012 (has links)
No description available.
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Impact of continuous glucose monitoring system on model based glucose control : a thesis submitted in partial fulfilment of the requirements for the degree of Master of Engineering in Electrical and Computer Engineering, Department of Electrical and Computer Engineering, University of Canterbury, Christchurch, New Zealand /Chen, Xuesong. January 1900 (has links)
Thesis (M.E.)--University of Canterbury, 2007. / Typescript (photocopy). "May-07." Includes bibliographical references (leaves [89-95]). Also available via the World Wide Web.
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