Quantum Dots

The purpose of this communication is to make a bibliographic review of Quantum Dots methods and their applications in the field of Biotechnology. Quantum dots (QDs) are a novel class of inorganic fluorophores, which are gaining widespread recognition as a result of their exceptional photophysical properties

Analog ECG controlled by Arduino to monitor cardiac parameters

Actualmente, el sedentarismo y los malos hábitos de vida están produciendo serios problemas en la salud de la población humana. Entre estos graves cambios se encuentra el evidente empeoramiento de la salud cardiovascular de la población tal y como evidencian las estadísticas oficiales y el creciente número de dispositivos electromédicos para tratar las enfermedades cardiovasculares. Este proyecto constituye un acercamiento al proceso de diseño y producción de un dispositivo electromédico como es un electrocardiógrafo analógico que, comunicado con una placa de desarrollo Arduino permite la adquisición y procesamiento de una señal de electrocardiograma. Para ello, se lleva a cabo un proceso de investigación de los fundamentos biológicos y electrónicos exhaustivo con el fin de justificar cada fase del proceso de desarrollo del dispositivo. Posteriormente, se exponen las diferentes fases del proyecto desde la toma de requisitos hasta la fabricación final del dispositivo y las pruebas pertinentes. Con este proyecto se pone de relieve la importancia de un trabajo multidisciplinar que incluya diversos ámbitos de trabajo como el médico y el electrónico

Flexible Wirelessly Powered Implantable Device

Brain implantable devices have various limitations in terms of size, power, biocompatibility and mechanical properties that need to be addressed. This paper presents a neural implant that is powered wirelessly using a flexible biocompatible antenna. This delivers power to an LED at the end of the shaft to provide a highly efficient demonstration. The proposed design in this study combines mechanical properties and practicality given the numerous constraints of this implant typology. We have applied a modular structure approach to the design of this device considering three modules of antenna, conditioner circuit and shank. The implant was fabricated using a flexible substrate of Polyimide and encapsulated by PDMS for chronic implantation. In addition, finite element method COMSOL Multiphysics simulation of mechanical forces acting on the implant and shank was carried out to validate a viable shank conformation-encapsulation combination that will safely work under operational stress with a satisfactory margin of safety

Wirelessly Powered and Modular Flexible Implantable Device

State-of-the-art advances in battery-free and flexible implants require new materials and devices for brain behavior recording and stimulation where the constraints in terms of mechanical and electrical matching are crucial. Wireless Power Transfer based neural implants consist of receiver antenna, power management circuit, and shank for power transmission, recording and stimulation. Here, the implementation of a novel implantable device fabricated on a flexible polyimide substrate and a modular approach to implant device typology is introduced. A flexible substrate of polyimide is chosen to provide better implant-brain tissue mechanical, biocompatibility and biointegration compliance. Both, electrical and mechanical analysis are provided to prove the correct operation of the fabricated device under the modelled environment. COMSOL Multiphysics mechanical modelling in implantation case is carried out to analyze the optimal shape and material choice

Quantum Dots

The purpose of this communication is to make a bibliographic review of Quantum Dots methods and their applications in the field of Biotechnology. Quantum dots (QDs) are a novel class of inorganic fluorophores, which are gaining widespread recognition as a result of their exceptional photophysical properties