Broad-spectrum UV technology

Effective eradication of biofilms

Biofilms, protective communities of microorganisms, are highly resistant to conventional cleaning methods and UVC alone. PureFize’s broad-spectrum UV excels in biofilm disruption by:

• Penetrating the biofilm matrix with UVB and UVA
• Targeting both the protective layers and the microorganisms within

Research, such as studies on Pseudomonas aeruginosa biofilms, highlights the enhanced efficacy of UVB at 295 nm, a peak wavelength optimized in PureFize technology.

The power of combined wavelengths

First germicidal stage: UVC precision
Operating at a peak wavelength of 262 nm, the UVC stage is optimized to split DNA and RNA chains, effectively neutralizing harmful microorganisms. This precision ensures that pathogens are inactivated at their genetic core, preventing replication and function.

Second germicidal stage: UVB and UVA synergy
Beyond UVC, PureFize’s broad-spectrum UV technology includes:

• UVB (280–315 nm): Penetrates microorganism communities, disrupting biofilms and damaging proteins and lipids.
• UVA (315–350 nm): Generates reactive oxygen species (ROS), delivering oxidative stress to critical cellular structures.

This dual-stage approach ensures a deeper, more comprehensive disinfection process than UVC alone.

Deeper penetration for thorough disinfection

Traditional UVC technology primarily targets surface-level microorganisms. PureFize’s broad-spectrum UV extends the range with UVB and UVA, reaching shadowed areas and penetrating deeper into organic materials.

This capability is especially critical for:

• Eliminating biofilms
• Disinfecting porous surfaces or materials with embedded pathogens

Mitigating the "tailing effect"

Surfaces that appear smooth to the naked eye are often textured at a microscopic level, creating shadowed areas where microorganisms can evade UVC light. Broad-spectrum UV addresses this challenge by leveraging the longer wavelengths of UVA and UVB to:

• Reach shadowed and uneven areas
• Reduce microbial regrowth by neutralizing a greater percentage of pathogens

The result is a faster, more effective disinfection process.

Targeting multiple cellular structures

Broad-spectrum UV is uniquely effective because it targets various components of microbial cells, including:

• UVC: Damages DNA and RNA, preventing replication.
• UVB: Induces pyrimidine dimers in DNA and damages proteins and lipids.
• UVA: Generates ROS, causing oxidative stress and widespread cellular damage.

This multi-targeted approach ensures microorganisms are thoroughly inactivated and less likely to recover.

Adapting to diverse microbial populations

Microorganisms vary in their structure and susceptibility to UV wavelengths. Broad-spectrum UV provides comprehensive coverage for diverse microbial communities, including:

• Bacteria with robust cell walls
• Viruses with protein capsids
• Fungi and other complex pathogens

This adaptability makes PureFize technology ideal for applications ranging from water treatment to food safety.