Sign in Subscribe
Nanotechnology

Molecularly Imprinted Polymer-Based Sensor for Selective Detection of Penicillin G Antibiotic in Milk

Strategic Insights

— 1 min read

Researchers from Hacettepe University have developed a molecularly imprinted polymer-based surface plasmon resonance sensor using silver nanoparticles for the selective recognition of Penicillin G (PEN-G) antibiotic in both aqueous solution and milk samples. The sensor's ability to detect PEN-G in milk samples with high accuracy is crucial for the early detection of bacterial infections. According to the researchers, the sensor's performance was evaluated using Scatchard, Langmuir, Freundlich, and Langmuir-Freundlich adsorption models, which revealed a compatible interaction mechanism with the Langmuir model.

Key Takeaways:

  • The molecularly imprinted polymer-based surface plasmon resonance sensor was designed for the selective recognition of Penicillin G (PEN-G) antibiotic from both aqueous solution and milk samples.
  • The sensor was fabricated using silver nanoparticles (AgNPs) embedded in a polymeric film structure, allowing for the detection of PEN-G in milk samples with high accuracy.
  • The sensor's performance was evaluated using FTIR-ATR spectrophotometer, ellipsometer, contact angle measurements, and kinetic analyses, revealing a linear concentration range of 0.01-10 ng/mL PEN-G.
  • The research concluded that the interaction mechanism between the sensor and PEN-G was compatible with the Langmuir model, indicating a strong interaction between the molecules.
  • The sensor's ability to detect PEN-G in milk samples is crucial for the early detection of bacterial infections, and the researchers suggest further studies to improve the sensor's performance and specificity.

Statistics:

  • The linear concentration range of 0.01-10 ng/mL PEN-G was studied for kinetic analyses.
  • The sensor's performance was evaluated using FTIR-ATR spectrophotometer, ellipsometer, contact angle measurements and kinetic analyses.
  • The interaction mechanism between the sensor and PEN-G was compatible with the Langmuir model, indicating a strong interaction between the molecules.

Sources:

  • Selective Detection of Penicillin G Antibiotic in Milk by Molecularly Imprinted Polymer-Based Plasmonic SPR Sensor. Biomimetics, 2021;6(4):72.
  • Hacettepe University Reports Findings in Nanoparticles (Selective Detection of Penicillin G Antibiotic in Milk by Molecularly Imprinted Polymer-Based Plasmonic SPR Sensor). Nanotechnology Weekly. January 3, 2022; p 658.

Read more