Browse Topic: Sterilization

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Material Advances for LED Quantum Dot EfficiencyTBMG-3801311/01/2020
Developing efficient and cost-effective ultraviolet light-emitting diodes (LEDs), especially in the deepultraviolet (UV-C) is a long-standing goal of the photonics community. UV-C LEDs are of particular interest and could replace gas discharge lamps, revolutionizing disinfection systems, provide water purification, and facilitate non-line-of-sight communication. In light of the on-going global pandemic due to COVID-19, implementation of a rapid surface disinfection method in which chemical cleaning is impractical or not as effective is of critical importance.
Liquid-Repelling Substance Works on All SurfacesTBMG-3762309/01/2020
Acting like an invisible force field, a new liquid coating may provide an extra layer of protection for front-line healthcare workers. The coating repels nearly all substances off a surface, enabling cleaning of personal protective equipment a bit easier.
Laser Treatment Turns Metal Surfaces into Bacteria KillersTBMG-3743908/01/2020
A laser treatment method was developed that could potentially turn any metal surface into a rapid bacteria killer just by giving the metal’s surface a different texture. The technique allows the surface of copper to immediately kill off superbugs such as MRSA. Copper has been used as an antimicrobial material for centuries but it typically takes hours for native copper surfaces to kill off bacteria. The new one-step laser-texturing technique effectively enhances the bacteria-killing properties of copper’s surface.
Selecting Pressure Sensors for AutoclavesTBMG-3701206/01/2020
Pressure sensors are a key component in the monitoring and validation of steam temperature and other conditions in autoclaves commonly used to sterilize medical and dental equipment. Nominal conditions are around 2.1bar, 134°C (maximum pressure is about 3.8 bar/55 psi) steam from pure distilled water. Some of the requirements for pressure sensors are typical of most of today’s equipment calling for smaller form factor and cost-effective solutions. Autoclaves have additional application-specific needs for pressure sensors in that they must deliver high accuracy, be able to support elevated operating temperatures, feature high pressure capabilities, and offer harsh media compatibility.
5 Ws of Bacteria-Killing Metal SurfacesTBMG-3704106/01/2020
Anyone concerned with eliminating bacterial pathogens including superbugs like MRSA.
Editorial20AVEP05_0105/01/2020
Privately-owned vehicles were never so safe as they are today. Nor have they made so much sense. That thought hit me between the nostrils recently, as I sprayed a pungent disinfectant on the steering wheel of my family's B-segment runabout. Carefully wiping down the car's touch points with antibacterial cleaners has become a new pandemic ritual for us after returning home from food shopping and other essential missions. My little tribe generally keeps the interiors of our two vehicles tidy. Finding the occasional French fry buried in a seat track is, however, preferable to the dangerous microbes deposited every minute in the typical bus, train, or ride-share. The term “clean,” as understood by transit passengers, means a few spritzes by a custodial crew racing to meet uptime targets.
Brooke, Lindsay
Virus-killing Ozone Generator: Savior for Shared Vehicles?20AVEP05_0705/01/2020
Tier-1 supplier Magna evaluates its proven Puro virus-killing technology for a potentially new role: sanitizing vehicle interiors. An ozone-generating process that kills germs is being evaluated by supplier Magna for potential use in vehicle cabins, as the mobility industry seeks sustainable solutions for protecting passenger health. Magna's Puro branded product, soon to enter volume production, is a portable, plastic container that sanitizes clothing, toys, stuffed animals or other items placed inside a latched and locked bin. “Our immediate focus for our sanitizing technology is to help with the current personal protection equipment (PPE) shortage being experienced by our front-line coronavirus workers. That said, we hope to leverage this Magna technology to sanitize ride sharing vehicles and other future mobility applications,” Scott Mitchell, global director of New Technology & Innovation for Magna Mechatronics, told SAE's Autonomous Vehicle Engineering.
Buchholz, Kami
Leading Women in Engineering & Science: Anne F. Booth, Owner/President, Booth Scientific Sterilization and Quality System ProfessionalsTBMG-3629103/01/2020
What led you to choose science and/or engineering as a career, particularly in the medical device field?
Evaluation of the Effects of Hydrogen Peroxide on Common Aircraft Electrical MaterialsTBMG-3605802/01/2020
Among all of the large-scale disinfection and/or decontamination technologies available, vaporized hydrogen peroxide (VHP®) is of particular interest due to its rapid sterilization, easy usage, intrinsic environmental friendliness (i.e. simple by-products composed of only water and oxygen), and compatibility with many materials and systems.
Ultraviolet Rays Quickly Bash Bacteria on Mobile DevicesTBMG-3534310/01/2019
Ultraviolet light has been used for more than 30 years as a source of disinfectant. A newly introduced product uses the technology to eliminate bacteria on cell phones, tablets and other mobile devices in 20 seconds, and is used worldwide in healthcare facilities, biotech manufacturing plants, and even food processing facilities.
Clean Design: Reducing Patient Infections Starts with Design for CleanabilityTBMG-3532810/01/2019
Although the Food and Drug Administration (FDA) has reported progress on reducing overall infection rates with enhanced safety measures and better disinfection methods, the risks associated with reusable medical devices are an ongoing challenge, with drug-resistant microbes and other organisms continuing to survive the cleaning process at an unacceptable rate.1
Bacteria-Fighting Polymers Created with LightTBMG-3323411/01/2018
Hundreds of polymers that could kill drug-resistant superbugs in novel ways can be produced and tested using light. The new method may help identify antimicrobials for a range of applications from personal care to coatings.
Disinfectant, Aircraft For Use in Cargo CompartmentsAMS1451C (Current)10/16/2018
This specification covers disinfectants or chemicals for use in disinfecting aircraft after carrying livestock.
AMS J Aircraft Maintenance Chemicals and Materials Committee
Four-Step Plastic Testing Protocol: Making Informed Design and Material DecisionsTBMG-3306610/01/2018
Medical devices across the United States must not only keep pace with advances in technology but also with the increased use of harsh solvents and disinfectants. However, many materials commonly used in medical devices aren't able to withstand these new cleaning protocols. The nearly decade-long effort to combat healthcare-associated infections (HAIs) through increased disinfection has resulted in the degradation of their protective housings, causing cracking, crazing, discoloration, and premature failure of devices. Manufacturers must look to materials with higher levels of chemical resistance to strengthen device integrity and protect patient safety.
Disinfectant (Insecticide), AircraftAMS1450B (Current)09/28/2018
This specification covers insecticides for use in disinsection of aircraft as required on international passenger flights.
AMS J Aircraft Maintenance Chemicals and Materials Committee
Reusable Medical Devices: BI Selection, Overkill Validation Approaches, and First-Time Validation Pass Rates in Common Healthcare Steam Sterilization CyclesTBMG-3281709/01/2018
When validating the steam sterilization instructions for a reusable medical device, first-time pass rates are important to manufacturers. Failures in validation testing require resolution, adding to the total validation time, which can result in a delay to a regulatory submission, getting a device to market, or both.
Spikes of Graphene Kill Bacteria on Medical ImplantsTBMG-3238907/01/2018
Chalmers University of Technology Gothenberg, Sweden
Disposables Lead the Way to Fighting HAIs, Preventing ErrorsTBMG-2975007/01/2018
A key driver of the medical disposables market is the desire to minimize the risk of healthcare-associated infections (HAIs). Healthcare providers are turning to disposable products as a safer alternative than reusable devices, which even if decontaminated properly, can still lead to infection. According to Grand View Research, “the emergence of this sector is attributed to the increased focus toward the use of single-use disposable products to prevent cross-contamination and infection in healthcare settings.” In addition to the growing awareness of the benefits of infection control, another key factor driving the market expansion is the growing need for healthcare assistance for an aging population.
E-beam Sterilization: The Impact on Skin-Contact Adhesives for Medical ApplicationsTBMG-2910706/01/2018
The performance of adhesives used for wearable medical device applications is critical to the efficacy of the final product, as an improperly affixed device is unlikely to achieve the desired result when applied to the patient. Aside from medical device applications, accurately predicting how an adhesive will be impacted by the sterilization process in order to make informed choices is also important for advanced wound care and consumer wellness applications such as first aid.
New 'Box' Sterilizes Surgical InstrumentsTBMG-2421803/24/2016
A mobile container from Rice University sterilizes surgical instruments in low-resource settings. The "Sterile Box," built into a standard 20-foot steel shipping container, houses a water system for decontamination and a solar-powered autoclave for steam sterilization.
Attacking Biofilm FormationTBMG-2062311/01/2014
New research by mechanical engineers at Purdue University, West Lafayette, IN, aims at fighting bacterial biofilms that can foul implantable medical devices. Bacteria secrete a slimy substance that forms biofilms, allowing bacterial colonies to thrive on surfaces, including catheters, prosthetic valves, and other devices. Combating biofilms using antibiotics and toxic chemicals can lead to the growth of antibiotic-resistant strains.
PMA-Linked Fluorescence for Rapid Detection of Viable Bacterial EndosporesTBMG-1462309/01/2012
The most common approach for assessing the abundance of viable bacterial endospores is the culture-based plating method. However, culture-based approaches are heavily biased and oftentimes incompatible with upstream sample processing strategies, which make viable cells/spores uncultivable. This shortcoming highlights the need for rapid molecular diagnostic tools to assess more accurately the abundance of viable spacecraft-associated microbiota, perhaps most importantly bacterial endospores.
Identifying and Inactivating Bacterial SporesTBMG-524405/01/2009
Problems associated with, and new strategies for, inactivating resistant organisms like Bacillus canaveralius (found at Kennedy Space Center during a survey of three NASA cleanrooms) have been defined. Identifying the particular component of the spore that allows its heightened resistance can guide the development of sterilization procedures that are targeted to the specific molecules responsible for resistance, while avoiding using unduly harsh methods that jeopardize equipment.
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