Related Experiment Video
Updated: May 23, 2026
07:07
Controlled-release of Chlorine Dioxide in a Perforated Packaging System to Extend the Storage Life and Improve the Safety of Grape Tomatoes
Published on: April 7, 2017
Gaseous chlorine dioxide as an alternative for bedbug control.
Shawn G Gibbs1, John J Lowe, Philip W Smith
1Department of Environmental, Agricultural and Occupational Health, University of Nebraska Medical Center College of Public Health, Omaha, Nebraska 68198, USA. sgibbs@unmc.edu
Infection Control and Hospital Epidemiology
|April 6, 2012
Summary
Gaseous chlorine dioxide (ClO(2)) effectively eradicates bedbugs, including eggs, in laboratory settings. This pest control method shows promise for use in hospital rooms, achieving high bedbug mortality with no residuals.
Area of Science:
- Pest control
- Environmental science
- Public health
Background:
- Bedbug infestations are a growing concern, posing significant challenges for eradication.
- Current bedbug control methods are often labor-intensive and require multiple treatments.
Purpose of the Study:
- To assess the effectiveness of gaseous chlorine dioxide (ClO(2)) against common bedbug species (Cimex lectularius and Cimex hemipterus).
- To determine the penetration capabilities of ClO(2) in a simulated hospital room environment.
Main Methods:
- Bedbugs were exposed to varying concentrations of ClO(2) (362, 724, 1,086 ppm) in a controlled laboratory setting.
- Bedbug mortality rates were recorded immediately post-exposure and at later time points.
- Bacillus atropheus spores were used as a biological indicator to evaluate ClO(2) penetration in a hospital room setting.
Main Results:
- Concentrations of 724 and 1,086 ppm ClO(2) resulted in immediate 100% mortality of adult bedbugs.
- No viable bedbug eggs were observed after ClO(2) exposure.
- Lower concentrations (362 ppm) achieved 100% mortality within 6 to 18 hours, depending on exposure duration (ppm-hours).
- A significant reduction (up to 6-log) in B. atropheus spores demonstrated effective ClO(2) gas distribution within a hospital room.
Conclusions:
- Gaseous chlorine dioxide is a highly effective agent for bedbug extermination in both laboratory and simulated room environments.
- Achievable concentrations in a hospital room setting are sufficient for bedbug eradication.
- ClO(2) treatment leaves no harmful residuals, making it a potentially safe and efficient pest control solution.
Related Concept Videos
01:27Chemical Agents for Microbial Control
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...
01:28Microbial Bioremediation of Pesticides
Pesticides often feature structurally complex chemical architectures, incorporating halogen groups and multiple aromatic rings. These characteristics confer high chemical stability, rendering many pesticides resistant to natural degradation processes. This resistance poses significant environmental concerns, as persistent pesticide residues can accumulate in ecosystems and affect non-target organisms.Despite the inherent stability of many pesticides, certain microorganisms possess the metabolic...
01:30Methods 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,...
Using chemical sterilization rather than heat to clean out equipment is recommended. It eradicates and removes all bacteria,...
01:28Biological 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...
01:18Production of Biopesticides
Biopesticides offer a sustainable alternative to chemical pesticides, utilizing microbial agents to control agricultural pests. Bacillus thuringiensis (Bt) is a widely employed bacterium known for its potent insecticidal activity. Bt biopesticides are favored for their specificity to insect pests, minimal environmental impact, and natural degradability.Mechanism of Bt Toxin Action Bt produces insecticidal crystal (Cry) proteins during its sporulation phase. These proteins form parasporal...
01:27Radical Substitution: Halogenation of Alkanes and Alkyl Substituents
In the presence of heat or light, alkanes react with molecular halogens to form alkyl halides by a substitution reaction called radical halogenation. This reaction has three steps: initiation, propagation, and termination, as seen in the radical chlorination of methane to produce methyl chloride.
In the initiation step of the reaction, the chlorine molecule undergoes homolytic cleavage in the presence of light or heat, forming two highly reactive chlorine radicals. Propagation occurs in two...
In the initiation step of the reaction, the chlorine molecule undergoes homolytic cleavage in the presence of light or heat, forming two highly reactive chlorine radicals. Propagation occurs in two...