A5101418246- Photonic and Optical Devices
- Spectroscopy Techniques in Biomedical and Chemical Research
- Microfluidic and Capillary Electrophoresis Applications
- Acoustic Wave Resonator Technologies
- Clinical Laboratory Practices and Quality Control
- Microwave and Dielectric Measurement Techniques
- Trace Elements in Health
- Analytical Chemistry and Sensors
- Chronic Kidney Disease and Diabetes
- Advanced Software Engineering Methodologies
- Facial Rejuvenation and Surgery Techniques
- Semiconductor Lasers and Optical Devices
- Retinoids in leukemia and cellular processes
- Dermatologic Treatments and Research
- Advanced Fiber Optic Sensors
- Microfluidic and Bio-sensing Technologies
- Skin Protection and Aging
- Terahertz technology and applications
- Renal function and acid-base balance
- Mechanical and Optical Resonators
- Cleft Lip and Palate Research
- Spectroscopy and Laser Applications
- melanin and skin pigmentation
- Electrowetting and Microfluidic Technologies
- Reconstructive Surgery and Microvascular Techniques
University of Southampton
2015-2024
UConn Health
2006-2022
MetroHealth Medical Center
2019-2021
MetroHealth
2019-2021
Case Western Reserve University
2009-2019
University School
2014-2018
University Hospitals Cleveland Medical Center
2008-2018
Louis Stokes Cleveland VA Medical Center
2018
University Hospitals of Cleveland
2015-2017
October 6 University
2016
In this paper, a new type of microwave microfluidic sensor is proposed to detect and determine the dielectric properties common liquids. The technique based on perturbation theory, in which resonant frequency quality factor resonator depend resonator. A microstrip split-ring with two gaps adopted for design sensors (i.e., double resonator). This both compact planar, making it suitable lab-on-a-chip approach. Several types solvents are tested capillaries verify performance. At 3 GHz, very...
We present a method of making low-loss split-ring resonators (SRRs) for microfluidic sensing at microwave frequencies using silver-coated copper wire. show that simple geometric modification and the use square cross-section wire give greater electric field confinement in capacitive region resonant sensor. combination theoretical analysis, finite-element simulations, empirical measurements to demonstrate subsequent increases sensitivity these SRRs complex permittivity some common solvents.
Four immunochemical methods (radioimmunoassay, RIA; radial immunodiffusion, RID; immunoturbidimetry, IT; enzyme-linked immunosorbent assay, ELISA) for measuring urinary albumin at low concentrations were assessed their assay characteristics and practicability. Precision accuracy comparable between the when studied individually. We made a method comparison, with RIA as reference, using urine samples from diabetic patients ranging 1 to 120 mg/L. There was no significant systematic difference...
Background: The purpose of this study was to identify the environmental factors that contribute facial aging in identical twins. Methods: During Twins Day Festival Twinsburg, Ohio, 186 pairs twins completed a comprehensive questionnaire, and digital images were obtained. A panel reviewed independently recorded differences perceived twins' ages their features. age then correlated with multiple factors. Results: Four-point higher body mass index associated an older appearance younger than 40...
Recently evidence has been accumulating that some undescended testes present later in childhood after apparent normalcy infancy. These ascending appear to explain why a significant number of orchiopexies are performed despite the recommendation surgery for cryptorchidism be We aimed determine whether cause these was persistence processus vaginalis.A total 25 boys 4 13 years old with no history testicular maldescent at birth underwent transscrotal orchiopexy 2-year period. A 33 (8 bilateral)....
Urine albumin excretion rates were measured in overnight timed samples from diabetic and non-diabetic schoolchildren. The the diabetics significantly higher than those controls positively correlated with age, duration of diabetes, glycaemic control. Diabetic children aged 12 years older had younger matched for disease. Among there was no correlation between rate age girls excreted more boys. Measurement may provide a useful early indicator progression to clinical proteinuria diabetes is free...
Urine albumin excretion measured over consecutive weekends and on repeated first morning collections from normal children showed considerable variation both during the day to in each subject. The results emphasise need for measurement of confirm presence persistent microalbuminuria.
Abstract Mid-infrared (MIR) spectroscopy is a powerful tool for characterising the vibrations of molecular bonds and therefore ideal label-free detection chemical species. Recent research into thin-film deposition etching techniques mid-infrared materials shows potential realising miniaturised bedside biosensors clinical diagnostics exploiting MIR spectroscopy, to replace laboratory based-techniques. However, lack refractive index information commonly encountered biological media analytes...
The field of silicon photonics has experienced widespread adoption in the datacoms industry over past decade, with a plethora other applications emerging more recently such as light detection and ranging (LIDAR), sensing, quantum photonics, programmable artificial intelligence. As result this, many commercial complementary metal oxide semiconductor (CMOS) foundries have developed open access process lines, enabling mass production systems. On side spectrum, several research labs, typically...
A radioimmunoassay has been developed for the measurement in urine of retinol-binding protein (α 2 -roglobulin) and used as an index renal tubular function adult Type 1 (insulin-dependent) diabetics to define reference ranges non-diabetic controls. There was a significantly greater excretion ( P < 0·001) diabetic group compared controls both overnight daytime samples. weak positive correlation with albumin r = 0·33; 0·01) but no HbA , duration diabetes or arterial blood pressure. The...
Most medications, herbal preparations, and nutraceutical supplements have notable effects on biochemical pathways may influence wound healing, coagulation, cardiovascular function. They can also interact with other drugs. A large portion of the data available regarding naturopathic medicines is anecdotal. Marketing certain products be misleading potentially harmful, quality control standards are highly variable. In order to ensure standardization products, it prudent work preparations...
The authors of this study developed the use attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR) combined with machine learning as a point-of-care (POC) diagnostic platform, considering neonatal respiratory distress syndrome (nRDS), for which no POC currently exists, an example. nRDS can be diagnosed by ratio less than 2.2 two biomarkers, lecithin and sphingomyelin (L/S ratio), in study, ATR-FTIR spectra were recorded from L/S ratios between 1.0 3.4, generated...
Silicon photonics is one of the most dynamic fields within photonics, and it has seen huge progress in last 20 years, addressing applications data centers, autonomous cars, sensing. It mostly focused on telecommunications wavelength range (1.3 1.55 µm), where silicon becomes transparent. In this range, there are excellent light sources photodetectors, as well optical fibers operating with extremely low losses dispersion. a technology that hugely benefits from availability complementary...
We demonstrate the integration of paper fluidics with mid-infrared (MIR) chalcogenide waveguides to introduce liquid samples waveguide evanescent field for analysis. Spectroscopy model analytes (water and isopropyl alcohol) having well-defined mid-IR absorptions, on a ZnSe rib fabricated silicon, is demonstrated in wavelength range 2.6–3.7 µm, showing their O-H C-H stretching absorptions. The results are compared theoretical model, achieving good agreement. It concluded that presence does...
Plasma zinc, serum albumin and alkaline phosphatase (a zinc-dependent enzyme) were measured in thirty-five psoriatics their age- sex-matched controls. No significant difference was seen between these two groups as a whole, but with less than 10% surface involvement had significantly higher mean plasma zinc levels respective control group. Psoriatic patients also showed relationship the extent of level, those more extensive having lower minimal involvement. The differences not due to...
Herein, we demonstrate a method for simultaneously quantifying the electric and magnetic properties of liquid systems confined within capillary. This is based upon an optimized perturbation microwave-frequency coaxial resonator, chosen to maximize spatial separation two fields minimize depolarization liquid. A capillary passed through center resonator so sample occupies either maximum field (zero field) or depending on whether odd even TEM mode interrogated. allows effects be distinguished...
Albumin has long been observed to have a marked influence on the delivery of zinc cells, but mechanism interaction remains elusive. We examined whether albumin facilitates acquisition by endothelial cells. Cultures cells were used analyze binding and test this interaction. Our results indicate that plays role in facilitating physiological receptors preferentially recognize molecules carrying atom demonstrated cell surface. Endocytosis is instrumental uptake, which was also consistently true...
A 75 g oral glucose tolerance test was performed in 212 pregnant women with no predisposing factors suggesting intolerance to establish the normal pattern of metabolism pregnancy. Reference values for were established middle pregnancy (14-20 weeks, n = 43) and late (28-37 168). One woman excluded because she had diabetes that required treatment insulin. There statistically significant differences between two groups samples taken both one hours after load. ranges interpretation should...