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Related Experiment Video

Updated: Jun 20, 2026

Protein Kinase C-delta Inhibitor Peptide Formulation using Gold Nanoparticles
06:06

Protein Kinase C-delta Inhibitor Peptide Formulation using Gold Nanoparticles

Published on: March 9, 2019

Trypsin-gold nanoparticle conjugates: binding, enzymatic activity, and stability.

Min Lv1, Engao Zhu, Yuanyuan Su

  • 1School of Life Sciences, Sichuan University, Sichuan, P. R. China.

Preparative Biochemistry & Biotechnology
|September 10, 2009
PubMed
Summary

Gold nanoparticles (AuNPs) enhance the activity and stability of the protease trypsin. This interaction was confirmed through UV-vis spectroscopy, showing improved enzyme performance after mixing AuNPs with trypsin.

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Area of Science:

  • Biochemistry
  • Nanotechnology
  • Enzymology

Background:

  • Nanomaterials can alter biomolecule functions.
  • Proteases are crucial enzymes in biological processes.
  • Gold nanoparticles (AuNPs) are widely studied for their unique properties.

Purpose of the Study:

  • To investigate the interaction between gold nanoparticles (AuNPs) and the protease trypsin.
  • To determine how AuNPs affect trypsin's enzymatic activity and stability.

Main Methods:

  • Mixing trypsin with AuNPs under enzyme-friendly conditions (pH 8.0).
  • Characterizing the interaction using UV-vis spectroscopy.
  • Assessing trypsin's protease activity and stability before and after AuNP interaction.

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Last Updated: Jun 20, 2026

Protein Kinase C-delta Inhibitor Peptide Formulation using Gold Nanoparticles
06:06

Protein Kinase C-delta Inhibitor Peptide Formulation using Gold Nanoparticles

Published on: March 9, 2019

A Method for Selecting Structure-switching Aptamers Applied to a Colorimetric Gold Nanoparticle Assay
12:31

A Method for Selecting Structure-switching Aptamers Applied to a Colorimetric Gold Nanoparticle Assay

Published on: February 28, 2015

Rapid Nanoprobe Signal Enhancement by In Situ Gold Nanoparticle Synthesis
07:30

Rapid Nanoprobe Signal Enhancement by In Situ Gold Nanoparticle Synthesis

Published on: March 7, 2018

Main Results:

  • AuNPs and trypsin formed a bond, confirmed by UV-vis spectroscopy.
  • The average diameter of the AuNP-trypsin complex was 20 nm.
  • Trypsin exhibited enhanced enzyme activity and improved stability after interaction with AuNPs.

Conclusions:

  • Gold nanoparticles positively influence trypsin's bioactivity.
  • AuNPs can improve the performance of trypsin as a protease.
  • This finding suggests potential applications for AuNPs in enzyme stabilization and enhancement.