Ethylene Oxide
Ethylene Oxide - Related Videos
04:20
Investigating the Bacterial Response to Ethylene Using an Ethylene-Releasing Compound
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2025
Source: Augimeri, R. V. et. al., Utilizing the Ethylene-releasing Compound, 2-Chloroethylphosphonic Acid, as a Tool to Study Ethylene Response in Bacteria. J. Vis. Exp. (2016)This video demonstrates the effect of ethylene generated by 2-chloroethylphosphonic acid (CEPA) on bacterial growth and cellulose production. Ethylene activates signaling pathways that stimulate cellulose synthesis, resulting in enhanced pellicle formation. These results highlight the bacterial response to ethylene.
08:51
Utilizing the Ethylene-releasing Compound, 2-Chloroethylphosphonic Acid, as a Tool to Study Ethylene Response in Bacteria
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Cited by 1 •
2016
The protocols outlined herein facilitate the convenient investigation of bacterial ethylene responses by utilizing 2-chloroethylphosphonic acid (CEPA). Ethylene is produced in situ through the decomposition of CEPA in an aqueous bacterial growth medium, circumventing the requirement for pure ethylene gas.
08:56
Catalytic Reactor: Hydrogenation of Ethylene
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2023
Source: Kerry M. Dooley and Michael G. Benton, Department of Chemical Engineering, Louisiana State University, Baton Rouge, LA The hydrogenation of ethylene (C2H4) to ethane (C2H6) has often been studied as a model reduction reaction in characterizing new metal catalysts.1-2 While supported nickel is not the most active metal catalyst for this reaction, it is active enough that reaction can take place at < 200°C. The reaction typically involves adsorbed, dissociated hydrogen (H2) reacting...
03:14
Oxidation Numbers
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2020
In redox reactions, the transfer of electrons occurs between reacting species. Electron transfer is described by a hypothetical number called the oxidation number (or oxidation state). It represents the effective charge of an atom or element, which is assigned using a set of rules. Oxidation Number (Oxidation State) In the case of an ionic compound, oxidation numbers are assigned based on the number of electrons transferred between reacting species. For example, in the formation of calcium...
07:28
Ethylene Polymerizations Using Parallel Pressure Reactors and a Kinetic Analysis of Chain Transfer Polymerization
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2015
A protocol for the high-throughput analysis of polymerization catalyst, chain transfer polymerizations, polyethylene characterization, and reaction kinetic analysis is presented.
FAQs
Ethylene oxide inactivates microorganisms by alkylating cellular proteins and nucleic acids. Alkylation chemically modifies these essential molecules, interfering with the processes needed for microbial function and replication. This mechanism explains why the treatment can prevent survival and reproduction across bacteria, viruses, and other microorganisms encountered on clinical equipment.
Low-temperature processing matters when a device cannot tolerate heat or moisture. Ethylene oxide provides a sterilization option for such materials while also accommodating complex equipment features, including narrow lumens and electronic components. The choice therefore depends on the device’s material and design constraints, not solely on the presence of microorganisms.
Ethylene oxide can leave residues that are hazardous to patients and healthcare workers, so exposure alone is not the complete clinical process. Thorough aeration addresses this residual-risk concern before equipment is returned for use. Monitoring also supports protection by helping ensure that the sterilization process remains appropriately controlled.
A controlled workflow has three linked elements: exposure to the gas, thorough aeration afterward, and process monitoring. Exposure addresses microbial contamination, aeration reduces hazardous residues, and monitoring supports protection during processing. Together, these stages connect antimicrobial action with the safety measures required for clinical handling of treated equipment.
The approach is especially relevant to medical devices that cannot tolerate heat or moisture and to equipment with complex structures. Narrow lumens can make processing challenging, while electronic components may be vulnerable to conventional conditions. Ethylene oxide sterilization helps address these design and material limitations within clinical equipment processing.
Monitoring is important because clinical sterilization must balance effective microbial control with protection from gas-related hazards. It supports oversight of the controlled exposure and aeration process rather than treating sterilization as a single exposure event. This helps healthcare workers manage conditions that affect both equipment processing and patient safety.