Crystal IS, an Asahi Kasei company, and Boston University’s National Emerging Infectious Disease Laboratories (NEIDL) have performed research demonstrating the efficacy of Crystal IS’ Klaran UVC LEDs to inactivate SARS-CoV-2.

Crystal IS initiated this research to understand how SARS-CoV-2, the virus which causes COVID-19, responds to ultraviolet light across the emission range of Klaran UVC LEDs (260 nm to 270 nm) and at different doses.

(Image: Crystal IS)

Log Reduction as a Function of Dose and LED Peak Wavelength

(Data courtesy of Dr. Anthony Griffiths, NEIDL, BU)

During the study, an array of Klaran UVC LEDs were used to irradiate a surface containing SARS-CoV-2. The results in the table above show the log reduction achieved from exposing the virus to a UVC intensity of 1.25 mW/cm2 at different time intervals. The test was then repeated using a dose of 5 mJ/cm2 from LEDs which emit at a peak wavelength representing both ends of the Klaran LED wavelength specification (260 nm and 270 nm). The results indicate similar efficacy across the tested range.

Impact of Wavelength on Log Reduction

1= Hiroko Inagaki, Akatsuki Saito, Hironobu Sugiyama, Tamaki Okabayayashi, & Shouihi Fujimoto (2020), Rapid Inactivation if SARS-CoV-2 with deep-UV irradiation. https://www.tandfonline.com/doi/full/10.1080/22221751.2020.1796529

“The research by NEIDL at Boston University demonstrates that SARS-CoV-2 can be effectively inactivated in a matter of seconds through exposure to low doses of UVC light in the key germicidal range,” said Larry Felton, President at Crystal IS.

However, comparing test results from this study against published results from the University of Miyazaki (which used UVC LEDs emitting at 280 nm) highlights a marked drop in efficacy beyond 270 nm wavelength. While there is much to be done in the fight against the coronavirus pandemic, Crystal IS believes this type of data can be used to help design innovative and effective disinfection solutions.

TrendForce 2020 Deep UV LED Application Market and Branding Strategies
Release Date: 01 May 2020
Language: Traditional Chinese / English
Format: PDF
Page: 147

Chapter I. UV LED Market Scale and Application Trend
• UV Wavelength vs. Application Market Analysis
• 2020- 2024 UV LED Market Value
• 2020- 2024 UV LED Market Value- By Applications
• 2019- 2020 UV LED Market Value- By Regional Markets
• 2019- 2020 UV-A LED Market Value- By Regional Markets
• 2019- 2020 DUV LED Market Value- By Regional Markets
• 2020- 2024 UV-C LED Demand Market Volume- By Optical Power
• 2015-2020 UV-A LED Market Price Analysis
• 2015-2020 UV-C LED Market Price Analysis
• 2015-2024 UV-C LED Price Trend
• 2018-2019 UV LED Player Revenue Ranking
• 2018-2019 UV-A LED Player Revenue Ranking
• 2018-2019 UV-C LED Player Revenue Ranking
• Market Influence of The Minamata Convention on Mercury

Chapter II. UV-C Sterilization Principle
• UV-C Disinfection Principle and Applications
• Viruses and Diseases Treated With UV-C Disinfection
• COVID-19 vs. SARS
• Dose Analysis of UV-C for Major Viruses and Germs - Including SARS
• Product Features Analysis of UV-C LED and UV Mercury Lamp
• UV-C LED Sterilization Effect Key Factors
• Analysis on UV Dose Needed for Killing Major Viruses and Germs
• UV-C LED Microorganism Fatal Dose Measurement- Taking 285nm as an Example

Chapter III. UV-C LED Application Markets and Branding Strategies
• UV-C LED Application Markets and Branding Strategies- Research Scope
• UV-C LED Application Market and Optical Power Requirement Overview

3.1 Home Appliance Markets and Branding Strategies
• 2020 Surface Sterilization Application Market
• 2019-2020 Home Application Market and Branding Strategies
• 2020 Home Appliance Product Trend and Brand Vendor List
• Household Statistic Water Sterilization Market- Branding Strategies and Product Specification Analysis
• Household Air Sterilization Market- Branding Strategies and Product Specification Analysis
• Household Food Safety Market- Branding Strategies and Product Specification Analysis
• Maternity Product Market- Branding Strategies and Product Specification Analysis
• Portable Product Market- Branding Strategies and Product Specification Analysis
• UV-C’s Influence on Plastic Materials

3.2 Commercial Industry Applications and Branding Strategies
• 2020 Commercial Product Trend and Brand Vendor List
• Commercial Air Sterilization Market- Branding Strategies and Product Specification Analysis
• Commercial Surface Sterilization Market- Branding Strategies and Product Specification Analysis

3.3 Automotive Industry Applications and Branding Strategies
• 2020 Automotive Air Sterilization Market- Market Trend

Embedded Module Design and Product Analysis
External Module Design and Product Analysis
2020 Supply Chain Development and Potential Player List
2020 Supply Chain Strategic Alliance Analysis

3.4 Flowing Water Disinfection Market and Module Product Analysis
• Pros and Cons of Major Water Disinfection Methods
• UV-C LED vs. UV Lamp Purifiers Analysis
• UV-C LED Water Purifier Advantage Analysis- Product Design
• UV-C LED Water Purifier Advantage Analysis- Market Potential
• UV-C LED Water Purifier Market Key Factors
• UV-C LED Water Purifier Product Design

Reflective Materials
Optical Power Allowance
Optical, Flow Field and Heat Dissipation Design
Optical and Flow Field Coupled Design
Cost and Performance
Sterilization Rate vs. UV-C LED Optical Power Requirements
UV Dose vs. Sterilization Rate

• UV-C LED Purifier Product Analysis

Acuva Technologies
Watersprint
Nikkiso
AquiSense Technologies
Stanley
Asahi Kasei (Crystal IS)
VIEWTECH
Shui Yi Bao
QD Jason

• UV-C LED Water Purifier Comprehensive Analysis- Overview
• UV-C LED Water Purifier Comprehensive Analysis- LPM/W
• UV-C LED Water Purifier Comprehensive Analysis- LPM/USD
• Flowing Water Sterilization Market- 2020 Development Trend and Potential Player List

3.5 NSF/ANSI 55-2019 Standard Analysis
• NSF/ANSI 55-2019 Standard Introduction
• NSF/ANSI 55-2019- Newly Increased Contents Description
• NSF/ANSI 55-2019 vs. GB2835-2020 Analysis
• Impact of NSF/ANSI 55-2019 on UV LED Water Purifier Product Design
• Self-Test Method Before NSF/ANSI 55-2019 Verification

Chapter IV. Specialty Lighting Market Trend and Practical Case Studies
• Research Scope
• General Lighting vs. UV Lamp Players List
• Sterilization Lighting Market- Practical Case Study
• Food Industry Market- Theoretical / Experimental Data
• Food Industry Market- Practical Case Study
• Fishery Harvesting and Aquatic Product Preservation Markets- Practical Case Study
• Horticultural Lighting Market- Theoretical / Experimental Data
• Horticultural Lighting Market- Practical Case Study
• Phototherapy Market Trend- Practical Case Study
• Curing Equipment Market- Practical Case Study

Chapter V. UV LED Player Revenue and Business Strategy Analysis
• 2018-2019 UV LED Player Revenue Ranking
• UV-A LED Major Players List
• 2018-2019 UV-A LED Player Revenue Ranking
• UV-C LED Major Players List
• 2018-2019 UV-C LED Player Revenue Ranking
• 2020 UV-C LED Player Product Value Chain Analysis
• UV-C LED Wavelength vs. Optical Power Analysis
• UV-C LED Wavelength vs. External Quantum Efficiency (EQE) Analysis
• UV-C LED Wavelength- Optical Power- EQE Analysis
• 22 UV LED Players Revenue and Business Strategy Analysis

Chapter VI. UV-C LED Technology and Patent Analysis
• UV-C LED Technical Threshold Analysis
• UV-C LED Technology Analysis- Epitaxy
• UV-C LED Technology Analysis- Chip
• UV-C LED Technology Analysis- Major Chip Technology Analysis
• UV-C LED Technology Analysis- 2020 Package Technology Analysis
• 2016-2019 UV LED Patent Litigation
• Nitride Semiconductors UV LED Patent
• LG Innotek UV LED Patent