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Related Concept Videos

Biological Methods for Microbial Control01:28

Biological Methods for Microbial Control

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Biological agents offer an effective means of controlling microbial growth by leveraging natural processes like predation, competition, and the secretion of antimicrobial substances.Predatory bacteria such as Bdellovibrio species target and kill pathogens like Salmonella and E. coli. They are widely used in poultry farms to control infections. Myxococcus species help combat plant-pathogenic fungi. These naturally occurring predators serve as eco-friendly alternatives to chemical pesticides and...
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Chemicals play important roles in controlling microbial growth by targeting microbial structures and functions as sanitizers, antiseptics, disinfectants, and sterilants.Alcohols are commonly used sanitizers, effectively disrupting lipid membranes, which compromises cell integrity. They are also used as antiseptics and disinfectants due to their rapid action and versatility.Phenols and their derivatives phenolics , known for denaturing proteins and disrupting cell membranes, are particularly...
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Physical Methods for Controlling Microbial Growth: Radiation and Filtration01:26

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Radiation and filtration are essential tools for microbial control, targeting microorganisms through distinct mechanisms. Radiation eliminates microbes by damaging their DNA, either killing them or inhibiting their growth. Based on wavelength, radiation is classified into two types: nonionizing and ionizing radiation.Non-ionizing radiation, such as UV radiation (200–400 nm), is absorbed by DNA, causing defects that effectively disinfect surfaces, air, and water, including safety cabinets.
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Gene Regulation in Microbial Communities: Quorum Sensing01:28

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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,...
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Anti-virulent Disruption of Pathogenic Biofilms using Engineered Quorum-quenching Lactonases
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Burgeoning Single-Atom Nanozymes for Efficient Bacterial Elimination.

Tongyu Shi1, Yuanyuan Cui1, Huanxiang Yuan1

  • 1Department of Chemistry, College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China.

Nanomaterials (Basel, Switzerland)
|October 27, 2023
PubMed
Summary

Single-atom nanozymes (SAzymes) offer a potent solution against drug-resistant bacterial infections by generating reactive oxygen species. This review highlights their advanced antibacterial applications and future potential.

Keywords:
antibacterial applicationsantibacterial mechanismbacterial infectionenzyme-like activitysingle-atom nanozymes

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Area of Science:

  • Biomaterials Science
  • Nanotechnology
  • Infectious Diseases

Background:

  • Antibiotic resistance necessitates novel antibacterial strategies.
  • Nanozymes show promise as antibiotic alternatives due to high efficiency and low resistance risk.
  • Insufficient catalytic activity currently limits nanozyme development for bacterial infections.

Purpose of the Study:

  • To review recent advancements in single-atom nanozymes (SAzymes) for antibacterial applications.
  • To discuss the mechanisms of action for SAzymes in treating bacterial infections.
  • To explore the challenges and future perspectives of SAzymes in clinical settings.

Main Methods:

  • Literature review of recent research on SAzymes and their antibacterial properties.
  • Analysis of SAzyme catalytic mechanisms, focusing on reactive oxygen species generation.
  • Examination of SAzyme applications in wound disinfection, osteomyelitis treatment, and marine antibiofouling.

Main Results:

  • SAzymes exhibit superior enzyme-like activities due to maximized atom utilization and dispersed active metal sites.
  • SAzymes have demonstrated significant efficacy in various antibacterial applications.
  • The review synthesizes current knowledge on SAzyme performance and mechanisms.

Conclusions:

  • SAzymes represent a highly efficient and promising class of antibacterial agents.
  • Further research is needed to overcome challenges for practical, widespread application of SAzymes.
  • SAzymes hold significant potential to combat antibiotic-resistant bacterial infections.