Harvesting Energy with Magnetic Springs

      Michael D’Agati ‘18 Developing better ways to power portable electronic or wireless sensor systems has become more desirable in our increasingly mobile world. Multiple projects have proposed harvesting mechanical stresses from the human body to power these devices, but many of them use piezoelectric materials, which create current in a circuit due to changes in pressures on the material. Many small piezoelectric … Continue reading Harvesting Energy with Magnetic Springs

Creating Electricity Using the Motion of the Body

    Michael D’Agati ‘18 Wearable electronics, such as the Fitbit and Apple Watch, have started to flood the consumer marketplace. Flexible energy sources, rather than traditional batteries, are garnering more popularity to power this wearable technology because energy created by a moving human body – an unlimited power source – can be harvested and used to power them. A team of researchers led by … Continue reading Creating Electricity Using the Motion of the Body

Sensing Human Touch with Low Frequencies

Michael D’Agati ‘18 Passive touch sensing flexible keyboards could supplement low power displays. Sensing Human Touch with Low Frequencies. From touch screens to keypads, the technology that senses a human touch is vital to communication in the 21st century. This technology found in the displays of smartphones and tablets requires active touch sensing technologies. In other words, the display requires power delivered via battery or … Continue reading Sensing Human Touch with Low Frequencies

Paper-based Electrochemical Biosensor

by Michael D’Agati ’18   An electrochemical biosensor is a type of sensor that can provide quantifiable information based on the relationship between electricity and an identifiable chemical change inside a human, such as a glucose sensor that uses electrical means to detect change. Recently, paper-based devices have grown in the development of electrochemical applications because of their simplicity, low cost, and smaller usage of laboratory … Continue reading Paper-based Electrochemical Biosensor

Powering Biosensors with Magnets

by Michael D’Agati ’18   Some devices that aid human function, such as cochlear or real-time biosensors, only function inside the body. However, it is not practical to power them with batteries because of their potential toxicity and relatively short lifetimes. Because of these reasons, inductive coupling has been studied for wireless power transfer to these embedded biosensors. In other words, an external power source can … Continue reading Powering Biosensors with Magnets

A New Transistor Supercapacitor Hybrid: The Transcap

By Michael D’Agati   Finding new materials and geometries for the creation of transistors has become a focal point in the field of electronics within the past decade. This transition from silicon-based materials is important towards keeping up with a prediction made by Intel co-founder Gordon Moore, which states that the number of transistors in a dense integrated circuit doubles every two years. In other … Continue reading A New Transistor Supercapacitor Hybrid: The Transcap

Black Phosphorus Aids Development of Nanoscale Transistors

by Michael D’Agati   The development of classic silicon-based transistors at the nanoscale level has become more challenging, especially within the past decade. Scientists have thus turned towards producing transistors with new materials and geometries. Black phosphorus (BP), a material discovered a few years ago, could potentially provide a breakthrough towards making smaller transistors. It has grown in popularity in electronic device production because of its … Continue reading Black Phosphorus Aids Development of Nanoscale Transistors

A New Generation of Transistors

by Michael D’Agati   The number of transistors in an integrated circuit doubles every other year, according to Moore’s Law. This means that transistors must either continue to shrink beyond the nanoscopic scale or utilize different materials and geometries. However, limitations of atomic interactions at such a small scale make it difficult for transistors to be shrunk past the nanoscopic scale. In order to combat this … Continue reading A New Generation of Transistors

Sodium Ion Batteries in Cold Climates

by Michael D’Agati Most aspects of electrical design and electrical engineering, such as circuits, wouldn’t be possible without batteries. Good batteries have a large capacity, high power density (quick charge/discharge cycles), and low cost energy storage. A few different types of rechargeable batteries have been developed, but at low temperatures, like -15°C, they charge slowly. This results in a severe voltage drop that can trigger problems … Continue reading Sodium Ion Batteries in Cold Climates

Storing More Energy with Carbon

by Michael D’Agati   The improvements in energy storage have been slow and costly, despite all the advancements in technology over the past decades. For this reason, there has been a lot of focus from research groups worldwide on different sources and methods of energy storage. One type of energy storage device that may be promising for the future is the supercapacitor. Supercapacitors have the ability … Continue reading Storing More Energy with Carbon

Tackling Contraction of Infections from Healthcare Facilities

by Rideeta Raquib   Healthcare-acquired infections or HAI are illnesses acquired from healthcare environments, such as hospitals or rehabilitation clinics. It is a serious issue which affects thousands of people every year and multiplies healthcare costs significantly. Klebsiella Pneumoniae, a harmful HAI agent has been attributed to causing illnesses through colonizing and transmitting infection. One of the strains of Klebsiella Pneumoniae, known as ST258, is … Continue reading Tackling Contraction of Infections from Healthcare Facilities

A New Genome-Editing Technique

by Jalwa Afroz Developmental biology explores how cells differentiate from a fertilized egg into a complex multicellular organism. Although the idea of marking cells to track their development is not new, scientists at Harvard University and the University of Washington developed a CRISPR genome-editing system that offers far more specificity and versatility by tracing cells with fluorescent proteins. In order for a technology to trace … Continue reading A New Genome-Editing Technique