Enhancement of mobility of drug molecule for oral delivery
Enhancement of mobility of drug molecule for oral delivery
Molecular transport is key in drug development, especially for oral delivery, which is preferred for its convenience. However, oral bioavailability is often lower than intravenous methods due to barriers in the gastrointestinal tract. Our recent findings indicate that hydrophobic modifications, such as methylation, can enhance diffusivity in semi-dilute polymer solutions. This research aims to optimize the mucosal microenvironment and the interfacial property of the drug molecules to improve permeation. We aim to study methylated, fluorescent drug molecules to improve transport across the gastrointestinal mucosal layer. By manipulating these factors, we hope to enhance the transport of orally administered drugs, improving bioavailability, reducing costs, and increasing patient compliance.
Understanding the effect of "Magic Bullet" for improving drug potency
The impact of methyl or hydrophobic groups on drug molecules has gained significant attention in medicinal chemistry over the past decade, often referred to as the "magic methyl effect" or "magic bullet effect." Recent studies have shown that targeted methylation can enhance the properties of drugs, such as binding affinity and biological activity. Our research uses molecular dynamics simulations to analyze these effects, highlighting the importance of conformational changes and the specific positioning of methyl groups. Moreover, the effect is position-specific, allowing us to identify optimal methylation sites for potency enhancement. This research provides guidance on effectively adding methyl groups to drug molecules, with important implications for healthcare and pharmaceuticals.
Synthesis of polyolefin nanoparticles for faster biodegradation
Non-recycled plastic mainly consists of polyolefins, which account for about 60% of global plastic waste. Sourced largely from the packaging industry, these materials typically end up polluting marine environments and harming marine life. Comprehensive recycling is essential, as traditional methods like pyrolysis and mechanical recycling are ineffective. In my research group, we are developing a processing technique to enhance the biodegradability of these thermoplastics while minimizing energy use. The main challenges are the high crystallinity and low wettability of polyolefins, which impede biodegradation. Our novel synthesis method addresses these issues and increases the potential for biodegradation by bacterial polymerase enzymes.
Size focusing of metal oxide using digestive ripening
This project aims to develop a clear understanding of the size of metal nanoparticles in liquid solutions using a process called digestive ripening (DR). We want to extend this understanding from noble metals like gold, silver, and platinum to include other metal and metal oxide nanoparticles, such as iron and zinc. We'll examine how various factors interact at different scales. The focus is on creating a simple model for how noble metals form, considering important factors such as coating agents (like Thiol and Amine), the length of alkane chains, and types of binding sites (such as monodentate, bidentate, and tridentate). We will also look at different solvents, aging times, and more. All of this will be illustrated in a phase diagram. For the past twenty years, researchers have tested the DR method in many systems, but it has not yet been successfully used for regular metal oxides. We also plan to create a standard protocol for working with metal and metal oxide nanoparticles.