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Methods of Sterilization I: Physical Methods

Methods of Sterilization I: Physical Methods

As used in a healthcare facility, sterilization destroys all microorganisms through physical or chemical methods. The physical method includes steam, dry heat, boiling water, and radiation.
Steam sterilization uses non-toxic, low-cost moist heat in the form of saturated steam under pressure, which is fast, microbicidal, and sporicidal, and quickly warms and penetrates fabrics. Autoclaves, or steam sterilizers, expose each item to direct steam contact for a predetermined time at the necessary...

Methods of Sterilization II: Chemical Methods

Methods of Sterilization II: Chemical Methods

In healthcare, the chemical method of sterilization uses chemical sterilants to treat surgical instruments and medical supplies to help prevent the transmission of infectious pathogens to patients. Due to heat sensitivity, most medical supplies and equipment should not be exposed to high temperatures. These parts include rubber, plastic, glass, and other similar elements.
Using chemical sterilization rather than heat to clean out equipment is recommended. It eradicates and removes all bacteria,...

Physical Methods for Controlling Microbial Growth: Radiation and Filtration

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.

Cleaning, Sterilization, and Disinfection

Cleaning, Sterilization, and Disinfection

Cleaning, disinfection, and sterilization are the methods that help to break the infection chain and prevent disease.
Cleaning
The cleaning process usually involves using water with detergents or enzymatic cleaner and removing foreign material from objects and surfaces, including organic material such as body fluids or inorganic material like soil. Cleaning is performed before high-level disinfection and sterilization because foreign materials on the cover of the devices interfere with process...

Key Techniques in Microbiology

Key Techniques in Microbiology

Aseptic techniques prevent contamination, ensure experimental accuracy, and protect researchers and microbial cultures. These techniques are essential in clinical, industrial, and research settings where sterility is required.Maintaining Sterility in Laboratory PracticesScientists maintain sterility by sterilizing tools with heat or chemicals, disinfecting work surfaces, and handling cultures in controlled environments. Working near an open flame or within a laminar flow hood reduces the risk...

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Piezo High Accuracy Surgical Osteal Removal PHASOR: A Technique for Improved Cranial Window Surgery in Mice

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Piezoelectric sterilization techniques: from innovations to applications.

Bidisha Ghosh¹, Zia Ullah², Tehseen Sehar²

¹Department of Biotechnology, School of Life Sciences, Swami Vivekananda University, Kolkata, India.

Frontiers in Chemistry

|December 8, 2025

Summary

Piezoelectric materials offer a chemical-free sterilization method by disrupting microbes and generating reactive oxygen species (ROS) using mechanical force. These sustainable antimicrobial platforms show promise for biomedical and environmental uses.

Keywords:

antimicrobial activity biofilm piezodynamic therapy piezoelectric materials piezoelectric sterilization reactive oxygen species (ROS)

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Area of Science:

Materials Science
Biomedical Engineering
Nanotechnology

Background:

Traditional sterilization methods (heat, UV, chemicals) have limitations.
Piezoelectric materials present a non-thermal, chemical-free alternative.
Antimicrobial activity stems from mechanical stimuli-induced ROS generation and membrane disruption.

Purpose of the Study:

To review advancements in piezoelectric materials for antimicrobial applications.
To highlight their potential as sustainable, smart sterilization platforms.
To explore their use in biomedical and environmental contexts.

Main Methods:

Review of recent research on piezoelectric materials.
Analysis of mechanisms for ROS generation and microbial disruption.
Exploration of strategies for enhancing piezoelectric properties.

Main Results:

Piezoelectric materials effectively disrupt microbial membranes and produce ROS.
Enhancement strategies (defect engineering, doping) improve antimicrobial efficacy.
Applications include implants, wound dressings, and biofilm prevention.

Conclusions:

Piezoelectric materials are promising for advanced, sustainable antimicrobial solutions.
Further research can optimize their performance for diverse applications.
These materials offer a green alternative for sterilization and disinfection.