Related Experiment Video
Updated: May 23, 2026
09:54
Synthesis, Characterization, and Application of Superparamagnetic Iron Oxide Nanoprobes for Extrapulmonary Tuberculosis Detection
Published on: February 16, 2020
Super-paramagnetic iron oxide nanoparticles for use in extrapulmonary tuberculosis diagnosis
1Department of Pulmonary and Critical Care Medicine, Taipei Medical University-Shuang Ho Hospital, Taipei, Taiwan.
Summary
A new nanoparticle probe targets extrapulmonary tuberculosis (Mtb). This ultrasensitive imaging technology enhances Mtb diagnosis through magnetic resonance imaging (MRI), offering a non-invasive approach for detecting Mtb infections.
Area of Science:
- Biomedical Engineering
- Nanotechnology
- Infectious Diseases
Background:
- Serological tests for mycobacterial antigens often lack sensitivity.
- Extrapulmonary tuberculosis (Mtb) diagnosis remains challenging.
- Development of sensitive diagnostic tools for Mtb is crucial.
Purpose of the Study:
- To develop an ultrasensitive nanoparticle probe for imaging extrapulmonary Mtb.
- To conjugate super-paramagnetic iron oxide (SPIO) nanoparticles with Mtb surface antibodies (MtbsAb-nanoparticles).
- To evaluate the diagnostic potential of MtbsAb-nanoparticles using magnetic resonance imaging (MRI).
Main Methods:
- Conjugation of SPIO nanoparticles with MtbsAb.
- In vitro assessment of nanoparticle conjugation with Mtb bacilli and THP1 cells.
- In vivo MRI studies in mice with Mtb granulomas using T(2)-weighted imaging.
Main Results:
- MtbsAb-nanoparticles showed significant conjugation with Mtb bacilli.
- Contrast enhancement reduction in MRI was proportional to MtbsAb-nanoparticle concentration.
- A 14-fold greater signal intensity reduction was observed in Mtb granulomas after nanoparticle injection in mice.
Conclusions:
- MtbsAb-nanoparticles provide ultrasensitive imaging of Mtb biomarkers.
- This technology offers a novel, non-invasive method for diagnosing extrapulmonary Mtb.
- The nanoparticle probe demonstrates significant potential for improving Mtb diagnostics.
Related Concept Videos
01:26Pulmonary Tuberculosis IV
Tuberculosis, more commonly referred to as TB, is an infectious disease stemming from Mycobacterium tuberculosis. While it primarily impacts the lungs, TB can also affect other body areas. Given its severity and global impact, timely and accurate diagnosis is crucial for controlling its spread and improving patient outcomes.
Several diagnostic approaches are used to detect TB. The conventional method is the Tuberculin Skin Test (TST), also known as the Mantoux test. However, this method has...
Several diagnostic approaches are used to detect TB. The conventional method is the Tuberculin Skin Test (TST), also known as the Mantoux test. However, this method has...
01:31Pulmonary Tuberculosis III
Tuberculosis (TB) is a contagious infection primarily affecting the lung parenchyma but which can also affect other body parts. TB can be classified based on disease development, presentation, and the affected anatomical site.
The first classification is based on the development of the disease, and it includes the following categories:
The first classification is based on the development of the disease, and it includes the following categories:
01:28Pulmonary Tuberculosis V
Medical management of tuberculosis (TB) patients involves a comprehensive approach that includes diagnosis, treatment, and monitoring. The specific strategies can vary depending on the type of tuberculosis (latent or active), the patient's overall health status, and other considerations.
Latent tuberculosis infection occurs when TB bacteria are present in a person's body, but are not causing illness or symptoms. It is not contagious, and preventive treatment is crucial to avoid the progression...
Latent tuberculosis infection occurs when TB bacteria are present in a person's body, but are not causing illness or symptoms. It is not contagious, and preventive treatment is crucial to avoid the progression...