Airborne
Disinfection

Airborne disinfection

Controlled nebulization for aerial disinfection

The MICRONICE® technology, patented by TEKCELEO, is used in various fields within the bio-decontamination and pharmaceutical sectors. Our sprayers can diffuse different types of formulations and biocides such as hydrogen peroxide (H2O2), hypochlorous acid or peracetic acid, thus demonstrating their effectiveness in areas such as bio-decontamination.

Indeed, disinfection with hydrogen peroxide allows to sterilize medical equipments, to decontaminate transfer locks, pass-boxes, pharmaceutical production areas, laboratories, operating rooms, all experimentation and biosecurity areas where hygiene is essential. Thus, our spray nozzles are used by the actors of disinfection in hospitals and laboratories because their characteristics meet most of the expected criteria:

  • Resistance to disinfection liquids, such as hydrogen peroxide (H2O2) or hypochlorous acid, or peracetic acid (specific vibrating membrane nozzle model) ;
  • The possibility to control the volumes diffused to the nearest tens of microliters (allowing to optimize the availability time of the disinfected rooms);
  • A controlled and uniform deposit on the surfaces;
  • Precise control of the flow rate and the atomization cycle. 
  • A silent atomization process.

P&S360 for 360° automated nebulization of H2O2

Tekceleo P&S 360 device is made for being easily integrated to an Airborne Disinfection device, as a disinfectant machine or a sterilization equipement. It can also be used simply, as it is a “plug and spray” device, fully functionnal. Our technology nebulize the biocide into an easily generated aerosol, rather than producing vaporized hydrogen peroxide, which prevent unnecessary costs or corrosion of materials.

Our system is proven to function with several widely used disinfection formulation (biocide) : H2O2 7,9%/Peracetic Acid 0,25%, H2O2 30% or even Hypochlorous Acid (500 ppm).

This modular kit, with the addition of a complete fluidic system, and controlled by electronics, allows to quickly nebulize the biocide in all directions and according to cycles that can be pre-programmed. 

This specific device can be directly adapted and used in your own environment, or integrated to a specific airborne disinfection device. The kit is shipped fully functionnal, and with a complete fluidic system and an HMI for easy controlling flowrate and atomization cycles.

  • Miniature technology, with low footprint (nozzle dimensions: 20x16x16mm), easy to adapt at your environment of use  ;
  • Electronic: controllable via an ergonomic touchscreen, which allows to modulate precisely the flow rate by increments of 1%;
  • No temperature nor pressure rise, stable and monodisperse aerosol;
  • Low power consumption (<3W per nebulizer head);
  • Adaptable and controllable flow rate, from 0.1 mL/min to 40 mL/min depending on the selected flow rate and particle size;
  • Particle size depends on the membrane, allowing customization for your use, with a range of drop sizes from 04 to 50 microns;
  • No noise during operation;
  • Stainless steel membrane and very strong HDPE material;
  • No dead volume (all the liquid is nebulized);
  • Fluidic system already integrated with touch screen control;

To know more about our product, do not hesitate to contact us. Regarding specific development, Tekceleo can provide technical support and consulting services for integration and adaptation of the kit.

Aerial Disinfection Uses Cases

Vibrating membrane nebulization of H2O2: a proven technology for biosafety in pharmaceutical and medical environments

Certain environments and specific sectors of activity are particularly sensitive to the risk of surface colonization by micro-organisms, which can lead to the contamination of patients or operators. The risk of surface infection is particularly high in areas where micro-organisms are handled, such as biological research, biotechnology, anatomy, autopsies, and medical and veterinary laboratories. In order to eliminate this risk, it is necessary to carry out daily cleaning procedures for floors, benches and equipment.

This can be achieved by having some of the staff regularly clean the surfaces and equipment. However, this can be complicated in certain environments or when faced with stringent safety and bio-decontamination standards. It is in this context that the maintenance, cleaning and hygiene management of all or part of the surfaces can be complemented by aerial disinfection mechanisms (ADS). These are called “biocleaning” requirements, where the hygiene requirements go beyond the notion of cleanliness alone and tend towards the total or partial disinfection of spaces.

Against the backdrop of this need for ADS, TEKCELEO H2O2 nebulizers can achieve very good results. It is useful to specify that our products are useful for the method of disinfection called “non-directed dispersants”, i.e. without human presence and with the help of particular automatic devices. Our vibrating membrane nozzles can be used for two types of treatment:

  • “Dry fog”, in which the product is sprayed in micro-droplets of about 4 to 12 microns (depending on the nozzle used); this type of treatment works very well with hydrogen peroxide. This treatment does not produce a wetting effect on the treated surfaces, but can limit the spectrum of liquids and disinfectants used.
  • Cold atomization, in which the product is sprayed in micro-droplets larger than 12 microns, which has a wetting effect around the diffuser. This treatment is less precise than the dry fog method, but allows the vast majority of disinfecting liquids to be used.

Our piezoelectric atomization technology with a microperforated vibrating membrane achieves very good performance for the treatment of surfaces by airborne disinfection using “non-directed dispersants”. The ability to disinfect inaccessible areas is an essential quality of our atomization technology, especially in very high-biosafety settings such as cleanrooms. Our technology is suitable for every environment, miniature and affordable, which is one of its main advantages against other technology, such as vaporized hydrogen peroxide (autoclave, dry heat…). 

 

Achievements and examples with our nebulizer

  • TEKCELEO vibrating membrane nozzles have been incorporated into a portable medical and pharmaceutical disinfection robot. Our nebulization technology is used in a hand-held ASD device for remote disinfection of variable surfaces. The device can operate any kind of disinfecting liquid.
  • Our product P&S-360 has been used for disinfection of biological safety cabinets (BSC) with hydrogen peroxide. As part of our collaboration with some laboratories and universities, TEKCELEO provides “turnkey” kits that can be quickly used to be tested in ASD use.

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Clean Rooms

The advantages of our technology for H2O2 nebulization in small volume

A specific design for disinfection and sterilization processes 

 

The technology developed by Tekceleo, in the course of years of development, is the only proper vibrating membrane technology that can be used for surface disinfection. Indeed, vibrating membrane nebulizers are historically used for the production of therapeutic aerosols, and not for the production of biocides aerosols, which are much more corrosive. Tekceleo has opened the way to the use of this new method by a patented design (Micronice®), protecting the piezoelectric transducer from the biocide, which in most cases is an oxidant and/or corrosive liquid (H2O2, Peracetic Acid, HCLO…).

This design was accompanied by a choice to increase the quality of all of the materials and assembly methods of production. This allowed the design of a spray head with a reliability in accordance with ADS standards, while keeping the compact and adaptable aspect of the original technology. As part of its design, our technology has undergone long-term testing in constrained environments and with the most corrosive liquids on the market (H2O2 >30%, peracetic acid >1.5%). Their design and manufacture are ISO 9001 certified.

 

A more performant technology for small volume disinfection than existing ones (Vaporized hydrogen peroxyde, pneumatic nebulization, ultrasonic fogger…)

 

The arrival of the MICRONICE technology for disinfection facilitates contamination control for small volumes:
– Biological Safety Cabinet (BSC)
– Decontamination chamber
– Isolators
– Glove box
– …

Theses equipments are subject to constant vigilance regarding the spread of contaminating agents. In case of contamination, it is necessary to proceed to a disinfection cycle of the surfaces by airways, but for certain laboratories and uses this cycle must be daily. Without any pressure, nor heat and a miniaturized footprint, our technology has unique adavantages for this kind of application.

 

 

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Tekceleo
609 Route de la Roquette
06250 Mougins