Experimental Projects

Deep Dive

Innovation in biomedical engineering and materials science often begins at the molecular and material level, where fabrication techniques and experimental processes define the functionality of advanced devices.

My research focuses on developing biomaterials, sensors, and optical components, integrating sustainable materials, nanofabrication, and spectroscopy to create high-performance solutions for healthcare and engineering applications.

This section showcases step-by-step fabrication processes, material extraction methods, and optical characterization techniques that drive my work. From silk-based microlens arrays and chitosan-derived biosensors to Raman spectroscopy and IoMT-enabled smart health monitoring, these experimental studies highlight the intersection of materials, technology, and real-world applications.

Sustainable Biomaterials & Extraction Processes

These images highlight the extraction of biomaterials from natural sources, essential for eco-friendly engineering applications.

Fiber Extraction from Pineapple Crown Leaflets

Step-by-step conversion of pineapple crown leaves into fluffy fiber pulp, intended for use as an absorbent layer in sustainable sanitary pads.

Extraction of Chitosan from Mealworm Shells

Stepwise chemical processing of mealworm shells into chitosan, involving demineralization, deproteinization, and deacetylation.

Extraction of Anthocyanin from Red Cabbage

A schematic representation of anthocyanin extraction, a key natural dye with biosensing and optical properties.

Fabrication & Engineering of Functional Biomaterials

This section focuses on processing biomaterials into functional optical and sensing devices.

Fabrication of Silk Microlens Array

Stepwise fabrication process, from extracting silk fibroin solution to aqueous casting for patterning microlens arrays.

Casting of Silk Solution into PDMS Microwells

Demonstrates the final microlens after casting, and its formation using regenerated silk fibroin solution and PDMS templates.

Fabrication of Chitosan-Based Humidity Sensor

Stepwise process of chitosan film, affixing IDE copper electrodes, and drop-casting polyvinyl alcohol (PVA) solution for enhanced sensing performance.

Optical Applications: Instrumentation and Synthesis

Focuses on optical techniques used for material characterization and cryptography

Integrated Raman Probe Setup

Fully assembled Raman probe, including activated laser excitation, optical configuration, probe optics, and detection system.

Characteristics of Raman Instrument

Describes how filters function in signal generation and backscattering, transmission, and right-angle Raman instrument configurations.

Principles of Raman Spectroscopy

Explains Rayleigh, Stokes, and anti-Stokes scattering based on vibrational energy levels of materials.

Fluorescent silk protein-metal nanostructures generate SERS and fluorescent signals for secure cryptographic information and robust biometric authentication through safe long-term implantation.

SERS & Cryptography

Laser-Induced Fluorescence and Raman Readout for Cryptographic Applications: Laser-induced fluorescence and Raman readout are employed for signal acquisition, followed by conversion into encryption keys, thus enhancing signal entropy. Additionally, steps for assessing resilience against machine learning attacks are demonstrated.

Smart Health Monitoring

This section showcases IoMT-integrated sensors and smart healthcare solutions for real-time diagnostics.

EcoSmart Glucose Sensor

Demonstrates the Internet of Medical Things (IoMT) integration of a biosensor for real-time glucose monitoring.

Integrating Sphere for Pulse Oximeter

A schematic representation of an integrating sphere setup and measured light profiles at different wavelengths, ensuring uniform sample illumination in optical experiments.

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