Prussian Blue Analogues-Derived Molecularly Imprinted Nanozyme Array for Septicemia Detection

Area of Science:

• Biomaterials Science
• Nanotechnology
• Analytical Chemistry
• Infectious Disease Diagnostics

Background:

• Septicemia is a life-threatening bacterial infection requiring early detection for effective treatment.
• Current diagnostic methods may lack the sensitivity or speed needed for timely intervention.
• Biomarker identification and sensitive detection are critical for improving septicemia diagnosis.

Purpose of the Study:

• To develop a molecularly imprinted nanozyme array for the specific detection of septicemia biomarkers.
• To create a sensitive and selective colorimetric assay for early septicemia diagnosis.
• To evaluate the performance of the developed nanozyme array in detecting target analytes in blood samples.

Main Methods:

• Synthesis of a molecularly imprinted TiO2-Fe-CeO2 nanozyme array derived from Prussian blue analogues.
• Characterization of the nanozyme array using Fourier transform infrared spectroscopy, X-ray diffraction, and electron microscopy.
• Development of a colorimetric assay utilizing the nanozyme array for detecting valine, leucine, and isoleucine.

Main Results:

• The nanozyme array exhibited desirable physical and chemical properties for catalytic applications.
• The assay demonstrated linear detection ranges and low limits of detection for valine, leucine, and isoleucine.
• The system showed high selectivity and reproducibility, successfully detecting biomarkers and bacteria in blood samples.

Conclusions:

• The Ce[Fe(CN)6]-derived MITiO2-Fe-CeO2 nanozyme array is a promising tool for septicemia detection.
• This approach offers a sensitive, specific, and rapid method for early diagnosis of septicemia.
• The developed technology has the potential to significantly improve patient outcomes through timely intervention.