Niosomes attacking malaria parasites

Can Niosomes Beat Malaria? A Promising Drug Delivery System

Soraya Malik in Health & Wellness December 2025 • 4 min read.

"New research explores how co-loading anti-malarial drugs into Tween 80 niosomes enhances their effectiveness and survivability in treating malaria."

Malaria remains a major global health threat, caused by parasites transmitted through mosquito bites. The most dangerous species, Plasmodium falciparum and Plasmodium vivax, lead to severe illness and fatalities. A significant challenge in malaria treatment is the increasing drug resistance, which limits the effectiveness of available medications.

For years, combination therapies have been recommended to combat malaria, involving two or more drugs targeting different aspects of the parasite's life cycle. Primaquine (PRI) is one such drug, effective against dormant and transmissible stages of the parasite. However, concerns about toxicity and the need for long treatment durations have spurred research into optimizing its delivery and efficacy.

Researchers are exploring innovative drug delivery systems to enhance anti-malarial treatments. Niosomes, tiny vesicles similar to liposomes, offer a promising avenue. This article examines a study that investigates the potential of niosomes to co-deliver curcumin (CC) and primaquine, aiming to improve the effectiveness and reduce the side effects of anti-malarial drugs.

Niosomes: A Novel Approach to Malaria Drug Delivery

The study focuses on using niosomes to encapsulate and deliver a combination of curcumin (CC) and primaquine (PRI), testing its effectiveness against malaria in mice infected with Plasmodium berghei. Here's a breakdown of the key aspects:

Niosomes were prepared using a thin-film hydration method, with Tween 80, cholesterol, and stearylamine (STA) as key ingredients. These components help form stable, bilayered vesicles capable of encapsulating both drugs.

Drug Encapsulation: The niosomes efficiently encapsulated both curcumin and primaquine, with encapsulation efficiencies around 85% for PRI and 82% for CC during co-loading.
Particle Size and Charge: The niosomes were around 220 nm in size, with a positive zeta potential, indicating good stability and preventing aggregation.
Drug Release: In vitro studies showed a sustained release of both drugs from the niosomes, with an initial burst release of primaquine followed by a more gradual release.
Safety: Haemocompatibility studies indicated that the niosome formulation was reasonably safe for intravenous administration.

The real test was how well these niosomes worked in living organisms. Mice infected with malaria were treated with the drug-loaded niosomes, and the results were encouraging. The combination of curcumin and primaquine, delivered via niosomes, showed significant anti-malarial activity and improved survival rates compared to individual drugs alone.

The Future of Malaria Treatment: Niosomes and Beyond

This study suggests that niosomes could be a promising tool in the fight against malaria. By encapsulating and co-delivering anti-malarial drugs like curcumin and primaquine, niosomes can enhance their effectiveness and improve patient outcomes.

The enhanced therapeutic efficacy of the combination may be attributed to higher drug levels at the site of action, liver, which warrants further pharmacokinetic studies. While this research provides valuable insights, further studies are needed to fully understand how niosomes affect the drugs' behavior in the body.

As drug resistance continues to threaten malaria treatment, innovative approaches like niosomes offer a beacon of hope. Further research and development in this area could pave the way for more effective, safe, and accessible malaria therapies in the future.

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Everything You Need To Know

What exactly are niosomes, and how are they being used in the context of malaria treatment?

Niosomes are tiny vesicles, similar to liposomes, made from components like Tween 80, cholesterol, and stearylamine. These components form a bilayered structure capable of encapsulating drugs. They're being explored as a way to deliver anti-malarial drugs more effectively. Unlike traditional drug delivery methods, niosomes can improve drug absorption, reduce toxicity, and protect drugs from degradation, which could lead to better treatment outcomes for diseases like malaria.

How was the effectiveness of niosomes, carrying curcumin and primaquine, evaluated in the study?

The research explored the use of niosomes to co-deliver curcumin and primaquine. Curcumin and primaquine were encapsulated within the niosomes, and this combination was tested in mice infected with Plasmodium berghei. The results indicated that this approach enhanced the anti-malarial activity and survival rates compared to using the drugs individually. The co-delivery is important, as it could improve efficacy and potentially reduce the dosage needed for each drug, lowering the risk of side effects.

What were the key characteristics of the niosomes used in the study, such as size, charge, and drug release profile, and why are these important?

The study showed that niosomes encapsulating curcumin and primaquine had a size of around 220 nm. They also exhibited a positive zeta potential, indicating good stability and preventing aggregation of the vesicles. In vitro studies demonstrated a sustained release of both drugs, with an initial burst release of primaquine followed by a more gradual release. Haemocompatibility studies suggested that the niosome formulation was reasonably safe for intravenous administration. These characteristics are critical for ensuring that the drugs are effectively delivered to the site of infection and that the treatment is safe for the patient.

Why is drug resistance such a big problem in malaria treatment, and how might niosomes help overcome this challenge?

Drug resistance poses a significant threat to the effectiveness of malaria treatments. Traditional anti-malarial drugs are becoming less effective, urging the need for alternative solutions. Niosomes offer a potential way to combat drug resistance by improving drug delivery and efficacy. By encapsulating and co-delivering drugs like curcumin and primaquine, niosomes can overcome some of the mechanisms of drug resistance, potentially restoring the effectiveness of older drugs or allowing for the use of lower doses. This is vital for ensuring that malaria remains a treatable disease.

I understand that combination therapies are important for treating malaria. How do niosomes fit into this approach, particularly with drugs like curcumin and primaquine?

Combination therapies, involving two or more drugs targeting different aspects of the parasite's life cycle, have been recommended. One such drug is primaquine, effective against dormant and transmissible stages of the parasite. Researchers are exploring innovative drug delivery systems to enhance anti-malarial treatments. Niosomes offer a promising avenue to co-deliver curcumin and primaquine, aiming to improve effectiveness and reduce side effects. This approach allows for a synergistic effect, where the drugs work together to combat the parasite more effectively, while also potentially reducing the risk of drug resistance.