JHU Engineering

Design Day

Johns Hopkins Engineering Design Day is the Whiting School’s premier event that showcases the innovative works of Hopkins engineering students. Come see how students implement their classroom knowledge, creativity, and problem-solving skills to develop inventions and processes that solve real-world problems and create a better future.​​

Countdown to Design Day 2026 has begun.

Save the date April 28th.

Kujali Labor Support

Maternal mortality rates in Sub-Saharan Africa continue to face the highest burden, accounting for over 70% of global maternal deaths — most of which are preventable. In many low- and middle- income countries (LMICs), labor is managed by skilled birth attendants (SBAs), who are responsible for monitoring progress and supporting delivery. However, in many facilities, the number of births far exceeds the number of SBAs. SBAs are under extreme pressure, leading to overwork and reduced attention per patient.

Labor care requires rapid and accurate clinical decisions based on evolving factors like fetal heart rate, cervical dilation, and maternal vitals. Yet current support systems fail to accommodate the dynamic nature of labor. As a result, SBAs are left without timely, intelligent tools to assist them, causing missed complications and delayed interventions
Kujali is an AI-powered mobile application that integrates seamlessly into the clinical workflow, offering real-time, context-aware, patient-specific support to birth attendants.

Synthesis of Ultra-small PbS Colloidal Quantum Dots for Multi-junction Solar Cells

PbS colloidal quantum dots (PbS CQDs) are a promising material for next-generation solar cells and thus are a focus of research for renewable energy. The tunability of PbS CQD sizes allows for precise control of bandgap energy in the visible and near-infrared region, particularly useful for creating multi-junction solar cells. Current commercial solar cells use bulk material in a single-junction architecture, meaning only a certain range of wavelengths of light from the sun is absorbed.

Multi-junction solar cell architectures utilize multiple layers with different properties that absorb across a wider sunlight bandwidth, allowing for power conversion efficiencies that surpass the limits of a single-junction cell. With the goal of building a multi-junction architecture, we aim to optimize the synthesis of CQDs with bandgap energies of 1 eV and 1.6 eV. We also present a novel synthesis method for a single-population of ultrasmall PbS CQDs with an exciton range of 600-800 nm, useful for triple junction solar cells.

DryStep: An innovative and technology driven bath mat design

Traditional bathmats present several challenges, retaining moisture, promoting microbial growth, and requiring frequent maintenance, while stone-based alternatives are brittle and degrade over time. These limitations leave consumers without a durable, hygienic, and efficient solution for moisture management in both residential bathrooms and wet public environments like pool decks.
DryStep is a super-adsorbent, mineral-based bathmat that redefines moisture control through a freeze-casting technique that creates dendritic pore structures for rapid water wicking and evaporation. Our product incorporates a composite of diatomaceous earth, banana fibers, nano-silica, and environmentally safe binders to balance absorbency with mechanical strength. Unlike existing cloth or brittle stone mats, DryStep is designed for long-term durability, fast drying, and anti-slip performance.