Technological watch

New Nanoparticle-Based Method Could Help Arrest Internal Bleeding Faster

Nov 24 2021Reviewed by Alex SmithWhen there is substantial bleeding following a trauma, the first few minutes are very vital. The person needs to receive intravenous medication swiftly to arrest the bleeding. However, delivering the medication at the appropriate rate can prove to be quite difficult.

The outcome of slower infusions is fewer negative reactions, but the medication may not work sufficiently fast, especially in the case of critical trauma.

Four University of Maryland Baltimore County (UMBC) scientists have formulated a unique method of altering the surfaces of nanoparticles within these life-saving treatments to provide infusions that can be delivered more rapidly, but with a minimal possibility of negative reactions.

Infusion reactions can result in numerous symptoms, such as rashes and inflammatory responses. This can include anaphylaxis, a fatal respiratory failure. Up to now, the seriousness of these reactions has restricted the application of nanomedicines and decreased the probability of adverse reactions that could be radical.

The Core of the IssueIn a study published in the journal Nano Letters recently, Erin Lavik, professor of chemical, biochemical, and environmental engineering; Chuck Bieberich, professor of biological sciences; Nuzhat Maisha, Ph.D. ‘21, chemical engineering; and Michael Rubenstein, M.S. ‘14, Ph.D. ‘22, biological sciences, describe their unique method to the research. They concentrated on the core material of the nanoparticles supplied to patients.

We found that using a polyurethane core reduced the markers associated with infusion reactions.

Erin Lavik, Professor of Chemical, Biochemical, and Environmental Engineering, UMBC

Lavik is also the associate dean for research and faculty development in UMBC’s College of Engineering and Information Technology.

At present, 7% of people undergo infusion reactions, the researchers state in their study. “These reactions…limit the treatments available in a substantial portion of patients,” they elucidate.

We, like most of the field, have spent a lot of time trying to modify the surfaces of nanoparticles to modulate the reaction.

Erin Lavik, Professor of Chemical, Biochemical, and Environmental Engineering, UMBC

Related StoriesShe expresses that while that method does help to a certain level, going a step further by modifying the core material seems to have a better impact.

The study carried out by Lavik, Bieberich, and their colleagues lays the foundation for future analysis of preclinical models using nanocapsules to arrest internal bleeding. Lavik explains that partnership was a vital element of this study.

Journal Reference:Maisha, N., et al. (2021) Getting to the Core of It All: Nanocapsules to Mitigate Infusion Reactions Can Promote Hemostasis and Be a Platform for Intravenous Therapies. Nano Letters.


    Publication date: 24/11/2021



    This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 870292.