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Related Concept Videos

Methods for Controlling Microbial Growth01:29

Methods for Controlling Microbial Growth

Microbial growth control refers to various methods employed to inhibit, reduce, or eliminate microorganisms to ensure safety and hygiene across different settings. These methods are categorized based on the target environment and the level of microbial control required.Biocides are versatile agents designed to control microorganisms by either inhibiting their growth or outright killing them. These agents work through various physical, chemical, mechanical, or biological mechanisms. The...
Physical Methods for Controlling Microbial Growth: Radiation and Filtration01:26

Physical Methods for Controlling Microbial Growth: Radiation and Filtration

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.
Biological Methods for Microbial Control01:28

Biological Methods for Microbial Control

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...
iChip01:24

iChip

The cultivation of environmental microorganisms has long been hindered by the inability to replicate complex native conditions in vitro. The isolation chip (iChip) addresses this limitation by facilitating the growth of previously uncultivable microorganisms through in situ incubation. Designed for high-throughput microbial cultivation, the iChip comprises hundreds of microchambers, each capable of housing a single microbial cell. These microchambers are loaded with a mixture of molten agar and...
Microbial Biosensors01:17

Microbial Biosensors

Microbial biosensors are analytical devices that utilize living microbes to detect specific substances through measurable signals. These devices consist of two main components: biosensing organisms and signal-transducing elements. Biosensing organisms, such as Escherichia coli or Saccharomyces cerevisiae, are typically housed in multiwell plates connected to transducers, enabling rapid, real-time detection of target analytes.Signal Generation MechanismWhen a target analyte—such as...
Automated Microbial Diagnostics01:24

Automated Microbial Diagnostics

Automated diagnostic analyzers have transformed clinical microbiology by providing rapid and reliable methods for pathogen identification and antibiotic susceptibility testing. Among these systems, the Vitek 2 is widely used because it automates the traditionally labor-intensive processes of microbial identification (ID) and antibiotic susceptibility testing (AST), delivering standardized and timely results that are essential for effective patient care.Microbial Identification with ID CardsThe...

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Micro- and Nano-Bots for Infection Control.

Azin Rashidy Ahmady1, Shadman Khan1,2, Hong Han2

  • 1School of Biomedical Engineering, McMaster University, Hamilton, Ontario, L8S 4M1, Canada.

Advanced Materials (Deerfield Beach, Fla.)
|April 11, 2025
PubMed
Summary
This summary is machine-generated.

Medical micro- and nano-bots (MMBs and MNBs) offer precise, non-invasive solutions for infection management. These tiny robots show promise in diagnostics, targeted drug delivery, and surgical interventions, revolutionizing healthcare.

Keywords:
anti‐biofilm machinebiosensorinfectionmedical micro‐robotnano‐robot

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Area of Science:

  • Biomedical Engineering
  • Nanotechnology
  • Infectious Disease Management

Background:

  • Medical micro- and nano-bots (MMBs and MNBs) are emerging technologies for precise internal body navigation.
  • These bots offer potential for minimally invasive diagnostics and therapeutics across various diseases.

Purpose of the Study:

  • To highlight the revolutionary potential of MMBs and MNBs in infection management.
  • To explore current and future applications, challenges, and commercialization opportunities for MMBs and MNBs in combating infections.

Main Methods:

  • Review of current literature on MMB and MNB applications in infection prevention, diagnosis, and treatment.
  • Analysis of design challenges, including immune barriers, deep tissue penetration, and locomotion in low Reynolds number environments.
  • Discussion of future perspectives, such as multi-drive propulsion, bioinspired designs, and AI integration.

Main Results:

  • MMBs and MNBs can function as minimally invasive surgeons, rapid biosensors, and contrast agent carriers for imaging.
  • They show potential as anti-biofilm agents and smart carriers for antibiotics and biologics.
  • Key challenges include overcoming immune responses, achieving deep tissue navigation, and efficient movement in bodily fluids.

Conclusions:

  • MMBs and MNBs present a transformative approach to infection management, offering enhanced precision and reduced invasiveness.
  • Addressing design challenges and exploring advanced propulsion and AI integration are crucial for future development and clinical translation.
  • Commercialization requires overcoming technical hurdles and demonstrating clear clinical and economic benefits.