Yissum - Research Development Company of the Hebrew University

Quantum Nano Materials for Photo-Catalytic Applications

Posted by Yissum - Research Development Company of the Hebrew UniversityResponsive · Innovative Products and Technologies · Israel

Summary of the technology

Composition of metal-semiconductor nanoparticles for the generation of reactive species (radicals, peroxides) in solution.
This project covers different embodiments that have other researchers involved on different subsets (therapeutics, photoinitiators). For example, there is a biological aspect, whereby a biological assay is a result of a pathway started with reactive species generation.

Project ID : 9-2015-3191

Yissum - Research Development Company of the Hebrew University

Description of the technology


The current commercial photo-initiators are unsuitable for radical-polymerization of adhesive coatings and 2&3D printing due to their poor water solubility, low efficiency and restricted suitability to the emerging LED technology.

There is an evolving need for more efficient photo-initiators in the 3D biomedical industry which develops scaffold for tissue engineering, smart capsules for drug delivery, dental implants, etc.

Our Innovation

  • We developed a novel platform technology based on photocatalytic colloidal quantum nano-materials. The novel catalysts for light-induced REDOX reactions and reactive species formation enable significant advantages such as:
  • Efficient photocatalytic activity
  • Superior single and two-photon light sensitivity
  • High solubility in various solvents including water
  • High stability allowing prolonged use and multi-functionality
  • Wide and tunable absorption spectra suitable for excitation in the near UV-VIS range

Our nano-materials can efficiently and continuously produce reactive species on demand by near UV-VIS light excitation in both organic and aqueous solvents, allowing the replacement of the traditional polymerization processes currently done in organic solvents and/or with deep UV light sources.


Photo-catalysis, the enhancement of chemical reactions by light, is a powerful approach, beneficial for a wide-range of innovative industries.

The wide range of applications of the current developments covers among others:

  • Water soluble photo-initiators for 2&3D printing
  • Functional coatings
  • Controlled peroxidase based diagnosis and sensing
  • Phototherapy
  • Antibacterial activity
  • High-Spatial & temporal resolution
  • Waste consumption
  • Green Hydrogen fuel production
  • Water purification
  • Methane emission reduction

Project manager

Matt Zarek

Project researchers

Hermona Soreq
HUJI, Faculty of Science
The Alexander Silberman Institute for Life Sciences

Shlomo Magdassi
HUJI, Faculty of Science
The Institute of Chemistry

Uri Banin
HUJI, Faculty of Science
The Center for Nanoscience and Nanotechnology

Related keywords

  • Electronics, Microelectronics
  • Nanotechnologies related to electronics & microelectronics
  • Micro and Nanotechnology related to Electronics and Microelectronics
  • Materials Technology
  • Chemistry
  • Environment
  • Clean Production / Green Technologies
  • Waste Management
  • 3D printing
  • Some other electronics related
  • Chemicals and Materials
  • Pollution and Recycling Related
  • Chemistry & Materials
  • Coatings

About Yissum - Research Development Company of the Hebrew University

Technology Transfer Office from Israel

Yissum Research Development Company of the Hebrew University of Jerusalem Ltd. Founded in 1964 to protect and commercialize the Hebrew University’s intellectual property. Ranked among the top technology transfer companies, Yissum has registered over 8,900 patents covering 2,500 inventions; has licensed out 800 technologies and has spun-off 90 companies. Products that are based on Hebrew University technologies and were commercialized by Yissum generate today over $2 Billion in annual sales.

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