Related Experiment Video

Updated: Oct 5, 2025

Visualization of Bacterial Resistance using Fluorescent Antibiotic Probes
08:23

Visualization of Bacterial Resistance using Fluorescent Antibiotic Probes

Published on: March 2, 2020

12.9K

Synthesis and Encapsulation of Ajuga parviflora Extract with Zeolitic Imidazolate Framework-8 and Their Therapeutic

Ab Majeed Ahanger1, Suresh Kumar1, Atul Arya1

  • 1Medicinal Plant Research Laboratory, Department of Botany, Ramjas College, University of Delhi, New Delhi 110007, India.

ACS Omega
|January 24, 2022
PubMed

Insights

A novel APE@ZIF-8 nanocomposite effectively combats antibiotic-resistant bacteria like MRSA and CCREC. This positively charged agent uses reactive oxygen species to damage bacterial cells, offering a promising new treatment for infectious diseases.

Area of Science:

  • Materials Science
  • Nanotechnology
  • Microbiology

Background:

  • Antibiotic resistance is a growing global health concern.
  • Overuse of antibiotics has led to the emergence of resistant bacterial strains.
  • Zeolitic imidazolate framework-8 (ZIF-8) shows potential as a drug delivery vehicle due to its properties.

Purpose of the Study:

  • To develop a nanoscale APE@ZIF-8 nanocomposite agent.
  • To evaluate the antibacterial activity of APE@ZIF-8 against resistant bacteria.
  • To investigate the mechanism of action of the APE@ZIF-8 nanocomposite.

Main Methods:

  • Encapsulation of Ajuga parviflora extract (APE) within ZIF-8.
  • Characterization of the APE@ZIF-8 nanocomposite.
  • Assessment of antibacterial activity against methicillin-resistant Staphylococcus aureus (MRSA) and cephalosporin-carbapenem-resistant Escherichia coli (CCREC).
  • Investigation of reactive oxygen species (ROS) generation.

Main Results:

  • The APE@ZIF-8 nanocomposite demonstrated significant antibacterial activity against MRSA and CCREC.
  • The positively charged APE@ZIF-8 nanoparticles interact electrostatically with negatively charged bacterial surfaces.
  • ROS generation was identified as the primary mechanism for bacterial cell damage.

Conclusions:

  • The APE@ZIF-8 nanocomposite is a potent antibacterial agent against drug-resistant gram-positive and gram-negative bacteria.
  • This nanocomposite has broad application potential for treating infections caused by resistant bacterial strains.
  • The findings highlight a novel strategy for combating antimicrobial resistance.

More Related Videos

Author Spotlight: Exploring the Antibacterial Effects of Zinc Oxide Nanoparticles in Overcoming Antibiotic Resistance06:42

Author Spotlight: Exploring the Antibacterial Effects of Zinc Oxide Nanoparticles in Overcoming Antibiotic Resistance

Published on: September 27, 2024

2.1K
A Platform of Anti-biofilm Assays Suited to the Exploration of Natural Compound Libraries09:39

A Platform of Anti-biofilm Assays Suited to the Exploration of Natural Compound Libraries

Published on: December 27, 2016

18.0K

Related Concept Videos

Combined Effects of Drugs: Synergism01:27

Combined Effects of Drugs: Synergism

Synergism is a useful mechanism where combining two or more drugs is more effective than each constituent used alone. Such combinations are also called supra-additive interactions. The drugs collectively enhance the final therapeutic effect by acting on different targets. Another advantage is that the low dose of each constituent drug is sufficient to achieve the desired effect. This helps reduce the duration of therapy and lower the adverse effects of these drugs.
Such synergistic combinations...
5.0K
Antimicrobial Effectiveness01:28

Antimicrobial Effectiveness

The effectiveness of antimicrobial agents depends on various factors influencing their ability to eliminate microbial populations. Larger microbial populations require more time for complete eradication, emphasizing the importance of population size analysis when evaluating antimicrobial efficacy.Microbial resistance to antimicrobial agents varies significantly. Highly resilient microorganisms include endospores, gram-negative bacteria, and non-enveloped viruses, while prions are exceptionally...
283
Treating Helicobacter pylori in Peptic Ulcers: Antimicrobial Therapy01:16

Treating Helicobacter pylori in Peptic Ulcers: Antimicrobial Therapy

Helicobacter pylori, a resilient gram-negative bacterium, can thrive in the stomach's harsh, acidic environment. Infection with H. pylori leads to a cascade of events within the stomach lining. One of the critical disruptions caused by this bacterium is the interference with somatostatin production, a hormone responsible for regulating acid secretion. This interference tips the balance, escalating acid secretion and diminishing bicarbonate levels. This imbalance compromises the defensive...
609
Antibiotic Selection00:57

Antibiotic Selection

Overview
56.1K
Gene Regulation in Microbial Communities: Quorum Sensing01:28

Gene Regulation in Microbial Communities: Quorum Sensing

Quorum sensing is a mechanism of bacterial communication that enables coordinated gene expression in response to changes in population density. This facilitates collective behaviors that enhance survival, resource acquisition, and ecological adaptation. This process relies on small signaling molecules called autoinducers that accumulate as bacterial populations grow. When a critical threshold concentration of autoinducers is reached, bacterial cells collectively modify gene expression,...
117
Development of Antibiotic Resistance01:30

Development of Antibiotic Resistance

Antibiotic resistance is a major public health concern that arises when bacteria evolve mechanisms to withstand the effects of antibiotic treatments. This resistance can be intrinsic, acquired through genetic mutations, or transferred between bacteria via horizontal gene transfer. The development of antibiotic resistance poses significant challenges in treating bacterial infections and necessitates ongoing research to develop new therapeutic strategies.Intrinsic resistance occurs when bacterial...
293