Lateral Flow Technology Powers Iran’s New Nanotech Diagnostic Kit

Helicobacter pylori infection is a major cause of chronic gastritis and peptic ulcers. Persistent infection with this bacterium can also increase the risk of stomach cancer. Early diagnosis of bacterial infections in the gastrointestinal tract can therefore help ensure timely treatment and reduce the risk of long-term complications. In this context, diagnostic methods that identify the infectious agent without invasive procedures and at a reasonable cost are particularly important.

The Iranian knowledge-based company has developed a nanotechnology-based kit for detecting H. pylori antigens using lateral flow diagnostic technology. By testing a stool sample, the kit provides qualitative detection of infection caused by the bacterium, which is associated with chronic gastritis, gastric and duodenal ulcers, and an increased risk of stomach cancer.

Helicobacter pylori is one of the most common infectious agents in humans and can remain in the stomach for extended periods. Many infected individuals may have no noticeable symptoms. However, persistent infection can lead to chronic gastritis and ulcers in the stomach or duodenum in some people. The bacterium is also a recognized risk factor for stomach cancer. Nevertheless, infection alone does not mean that cancer will develop. Other factors, including family history, genetic characteristics, and dietary habits, also influence the risk.

Given the widespread prevalence of this infection, identifying infected individuals and treating cases that require medical intervention can form part of strategies to reduce complications associated with H. pylori. Access to simple diagnostic methods suitable for use in different healthcare settings is therefore important, particularly where invasive diagnostic procedures are not necessary or readily available for everyone.

The developed kit detects H. pylori-related antigens in stool samples. It uses specific antibodies to identify the target, and the test result is reported qualitatively as either positive or negative. Stool antigen testing is a non-invasive method for detecting active H. pylori infection. It can be used for initial diagnosis or to assess a patient's condition after treatment.

The product is based on lateral flow assay (LFA) technology. In this method, a sample moves along a specialized strip and comes into contact with diagnostic components, including specific recognition agents. If the target is present, a visible reaction appears in a designated area of the kit. The relatively simple design of this technology enables the development of rapid diagnostic tools and can reduce the need for complex equipment at certain stages of testing.

Key advantages of this type of kit include ease of use, no requirement for invasive sample collection, and the ability to operate in a variety of settings. Accordingly, H. pylori antigen detection kits can be used in medical diagnostic laboratories, hospital laboratories, healthcare facilities, and other qualified centers. However, the kit must be used and its results interpreted in accordance with the product instructions. Depending on the patient's symptoms or clinical circumstances, a positive or negative result may require medical assessment and further testing.

The nanotechnology-based kit is available at several healthcare facilities, including a specialized gastroenterology and liver clinic and the pharmacy of Taleghani Hospital. Access to such tools can help facilitate the assessment of infection. However, the choice of an appropriate diagnostic method and decisions regarding treatment remain the responsibility of a physician.

Diagnosing H. pylori infection is particularly important because, when an active infection is confirmed, appropriate drug treatment can help eradicate the bacterium and reduce the risk of related complications. In many cases, follow-up testing at an appropriate time is also recommended to confirm treatment success. Depending on their technical specifications and instructions for use, stool antigen detection kits can also be used for this purpose. The timing of post-treatment testing and the patient's preparation are important and should follow medical advice.

The company produces various diagnostic kits based on lateral flow technology. By enabling the development of rapid and relatively low-cost tests, this technology has applications in initial screening, situations where rapid diagnosis is important, and settings with limited access to advanced laboratory equipment. According to the company, its products are manufactured in accordance with ISO 9001:2015 quality management standards and ISO 13485:2016 quality management system requirements for medical devices.