On January 18, 2026, MASSPHOTON participated in the Biotech Investment Forum organized by Fakeeh Care Group in Riyadh. CEO Dr. Eason Liao delivered a pitch highlighting the company’s GaN-based UVC LED platform. The presentation focused on three sustainable, mercury-free solutions: real-time air disinfection, scalable water treatment, and rapid surface sterilization for healthcare environments. MASSPHOTON aims to advance pilot evaluations in Saudi Arabia through continued partnership with Fakeeh Care Group, supporting the Kingdom's vision for biotech innovation.

As global water scarcity intensifies, greywater recycling has emerged as a critical "second water source" for urban sustainability, capable of reducing building water consumption by up to 50%. This article examines the vital role of UVC LED technology in the domestic greywater treatment cycle. Unlike traditional chemical dosing or mercury lamps, UVC LED disinfection offers a mercury-free, energy-efficient, and compact solution that effectively inactivates pathogens (such as E. coli and Norovirus) without producing harmful disinfection by-products (DBPs).

As global water scarcity intensifies, domestic greywater—originating from showers, sinks, and laundry—has emerged as a vital non-conventional water resource. This article reviews global practices in greywater reuse across regions like the US, EU, and Australia, evaluating traditional physical, chemical, and biological treatment methodologies. It highlights the limitations of conventional systems, such as secondary pollution and high maintenance. The study proposes a synergistic "Efficient Pretreatment + UVC-LED Disinfection" process as a superior alternative. Compared to traditional mercury lamps, UVC-LED technology offers mercury-free safety, instant-on capabilities, and modular integration. The article concludes that UVC-LED is a key driver for shifting toward distributed, intelligent, and sustainable water recycling systems, providing a scalable solution for water-scarce urban environments.

This article explores the fundamental role of the dose-response relationship as a universal scientific principle governing ultraviolet (UV) radiation applications in both the biomedical and water treatment sectors. While UVA, UVB, and UVC bands serve diverse purposes—ranging from dermatological phototherapy and Vitamin D synthesis to the high-efficiency inactivation of waterborne pathogens—their efficacy and safety are uniformly dictated by precise dose (fluence) management. By analyzing quantitative data, the study highlights the non-linear nature of these biological effects, characterized by specific thresholds, effective windows, and saturation points. Key findings demonstrate that while low doses (e.g., 4–12 mJ/cm²) suffice for inactivating bacteria like E. coli and protozoa such as Cryptosporidium, significantly higher doses are required for resistant viruses. Furthermore, in phototherapy, the "dose window" effect is emphasized, where specific Standard Erythema Doses (SED) optimiz