Abstract Purpose Tear viscosity is known to influence the flow resistance and stability of the tear film, making it a relevant parameter for the assessment of tear quality. However, limited information is available in the literature regarding its reference values. This study aimed to establish a baseline for tear viscosity in a cohort without a […]
Insights into Tear Viscosity: A Study of 240 Volunteers Read More »
Abstract Quartz Crystal Microbalance with Dissipation monitoring (QCM-D) systems are widely used for the real-time analysis of mass changes and viscoelastic properties in biological samples, enabling applications such as biomolecular interaction studies, biosensing, and fluid characterization. However, their accessibility has been limited by high acquisition costs. To address this limitation, a low-cost, open-source QCM-D system
Abstract Love wave surface acoustic wave (LSAW) sensors are crystal resonators known for theirhigh potential for biosensing applications due to their high sensitivity, real-time detection,and compatibility with microfluidic systems. Commercial LSAWdevices are costly, andmanufacturing them is even more expensive, making accessibility a significant challenge.Additionally, their use requires specialized systems, and with only a few manufacturersdominating
Abstract Biosensors play an essential role in the detection of biomarkers, enabling precise and early diagnosis as well as effective monitoring of diseases. However, conventional immobilization techniques for biosensors, such as covalent attachment and silanization, often require harsh chemical treatments that can alter the structure and activity of bioreceptors, limiting their effectiveness. As an alternative,
Abstract According to a USDA report, $161 billion worth of food products was not available for human consumption in 2010 due to food loss. One potential way to reduce food loss is to prevent damage to the food product during the freezing process. This study presents quantitative measurements of the two primary processes involved in
Inverse Relationship Between Ice Nucleation and Ice Growth Rates in Frozen Foods Read More »
Abstract Tear viscosity is a critical property affecting tear distribution and ocular surface stability. While not widely established as a primary diagnostic marker, deviations from normal viscosity can impact ocular health, potentially contributing to conditions such as dry eye syndrome. Despite their importance, traditional viscometers require sample volumes that are not feasible to use with
Exploring tear viscosity with quartz crystal microbalance technology Read More »
Abstract Electric fields used in bone stimulation are based on the application of direct current, but some drawbacks exist, such as the need for an external power source. Piezoelectric poly(vinylidene fluoride) (PVDF) has attracted interest for biomedical applications due to its flexibility, low toxicity, and the piezoelectric response to mechanical stimuli. This study aimed to
Abstract Ice crystal growth and nucleation rate measurements are usually done using light microscopy in liquid and transparent samples. Yet, the understanding of important practical problems depends on monitoring ice growth inside solid materials, for example how rapid ice growth leads to structural damage of food, or how the final structure of cementitious materials is
Abstract Advances in sensors have revolutionized the biomedical engineering field, having an extreme affinity for specific analytes also providing an effective, real-time, point-of-care testing for an accurate diagnosis. Quartz Crystal Microbalance (QCM) is a wellestablished sensor that has been successfully applied in a broad range of applications to monitor and explore various surface interactions, in
