Self-Healing Bio-Based Adhesive System for Circular Bonding Applications
This technology is a formaldehyde-free, bio-based adhesive for wood and similar materials that can self-heal damage by heating and cooling, using reversible Diels-Alder chemistry for easy repair, recycling, and sustainable industrial use.
On-chip solid-state Zn-air microbattery and method for its manufacture
On-chip solid-state Zn-air microbattery and method for its manufacture A microimprint method for on-chip fabrication of Zn-air microbatteries is presented, which bypasses complications of catalyst incorporation on the chip at a target position and paves the way towards production of miniaturized, rechargeable energy sources. Challenge On-chip microsystems are promising for intelligent electronics and may offer […]
Biobased adhesive formulation
Biobased adhesive formulation A novel production method for a biobased adhesive, which comprises a tailored lignin structure as main component, is presented. The process technology overcomes the use of toxic phenol and formaldehyde, while the resulting adhesive exhibits superior physicochemical and mechanical properties. Challenge Phenol-formaldehyde resins are renowned representatives for the bonding of various materials […]
Pentafluorocyclopropanation of drugs and pesticides
Pentafluorocyclopropanation of drugs and pesticides The evaluation of the pentafluorocyclopropyl group as a chemotype in crop protection and medicinal chemistry has been hampered in the past by the lack of suitable methodologies that enable the practical incorporation of this moiety into advanced synthetic intermediates. By synthesizing an unprecedented sulfonium salt, 5-(pentafluorocyclopropyl)-dibenzothiophenium triflate, and using it […]
Efficient bonding and connecting of silicone components
Efficient bonding and connecting of silicone components A process technology for creating strong and durable connections between silicone regions or parts is presented, which involves a specific combination of vacuum ultraviolet irradiation and tailored application of mechanical pressure. Challenge Silicone (also known as polysiloxane) is a synthetic polymer and is known for its relatively high […]
Efficient recycling of plastic waste
Efficient recycling of plastic waste The technology comprises the efficient production of recyclable plastics or other plastic fractions from structurally altered plastic waste. Challenge Material recycling can be divided into chemical, thermal, and mechanical processes. Chemical processes focus on structural modification of materials with the aim to break them down into their basic building blocks. […]
New class of Reagents for Alkynylation and Cyanation
Scientists from the University of Göttingen developed novel reagents to attach terminal C-C or C-N triple bonds to organic molecules. These novel, sulfur based reagents have two striking advantages over the widely used EBX based reagents: They do not suffer from being potentially explosive but still show high alkynylation rates with yields up to 90% and the reduced reactivity allows for selection of alkynylation sites in one molecule.
New antibiotics that are degradable in the environment
New antibiotics that are degradable in the environment Scientists at the Leuphana University of Lüneburg developed cleavable antibiotics based on fluoroquinolones by targeted changes of the molecular structure. As a result, the environmental degradability can be improved and the antibiotics can be inactivated rapidly after application. The present invention thus enables a balance between degradability […]