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New process enables 3D printing of small and complex components made of glass in just a few minutes

Possible applications of the new process technology are micro-optical components of sensors, microscopes or lab-on-a-chip systems

21-Apr-2022

Because of its outstanding transparency as well as its stability in contact with heat or chemicals, glass is relevant for many high-tech applications. However, conventional processes for shaping glass are often tedious, energy-intensive and quickly reach their limits for small and complicated ...

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Complex pathways influence time delay in ionization of molecules

Study shows how the mechanism of photoionization can be used to gain insights into complex molecular potentials

18-Mar-2022

How can researchers use the mechanism of photoionization to gain insight into complex molecular potential? This question has now been answered by a team led by Prof. Dr. Giuseppe Sansone from the Institute of Physics at the University of Freiburg. The researchers from Freiburg, the Max Planck ...

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Demonstrating Feshbach resonances between a single ion and ultracold atoms

Researchers study the interaction between lithium atoms and barium ion isolated in ultrahigh vacuum and trapped using light traps

20-Dec-2021

A team led by Prof. Dr. Tobias Schätz, Professor of Atomic and Quantum Physics at the Institute of Physics at the University of Freiburg, Dr. Pascal Weckesser, Fabian Thielemann and colleagues, demonstrate magnetic Feshbach resonances between a single barium ion and lithium atoms at near absolute ...

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Study analyzes technologies’ climate efficiency in removing carbon dioxide from the atmosphere

One process has similar CO2 footprint to e-mobility

02-Nov-2021

Technologies for the removal of carbon dioxide (CO2) from the atmosphere (direct air capture, or DAC for short) are already in use, but neither their actual benefits for climate protection nor their other environmental impact have yet to be investigated. A research team led by Kavya Madhu and ...

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Crucial step identified in the conversion of biomass to methane

Researchers find the enzymatic link in the formation of methane from fatty acids by cooperating microorganisms

05-Oct-2021

Microbial production of methane from organic material is an essential process in the global carbon cycle and an important source of renewable energy. This natural process is based on a cooperative interaction between different types of microorganisms: the fermenting bacteria and the ...

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“Rainbow color maps are pretty, but not suitable for science”

Researchers show distorted representation and perception of scientific results with colorful graphics and suggest alternatives

27-Aug-2021

Colorful maps and figures with rainbow-colored gradients from scientific papers often serve as eye-catchers in journals and are readily shared in social media. Hydrologist Dr. Michael Stölzle from the Institute of Earth and Environmental Sciences at the University of Freiburg and Dr. Lina Stein ...

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Making stresses in plastics and components visible

Research team led by TU Chemnitz develops dyes that continuously indicate stresses and their strength in plastics and components by changing colour

05-Aug-2021

A research team led by Prof. Dr. Michael Sommer, holder of the Professorship of Polymer Chemistry at Chemnitz University of Technology, and PD Dr. Michael Walter, project leader at the Cluster of Excellence Living, Adaptive and Energy-autonomous Materials Systems (livMatS) at Albert Ludwig ...

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Programmable structures from the printer

New method for 3D-printing materials systems that move like a climbing plant

09-Jul-2021

Researchers at the University of Freiburg and the University of Stuttgart have developed a new process for producing movable, self-adjusting materials systems with standard 3D-printers. These systems can undergo complex shape changes, contracting and expanding under the influence of moisture in a ...

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Binding of a second CO molecule observed

Researchers clarify another step in the mechanism of reduction of carbon monoxide through nitrogenase

15-Jun-2021

Through the biological fixation of the element nitrogen by the enzyme nitrogenase, organisms gain access to molecular nitrogen (N2) in the Earth‘s atmosphere, which is essential for building cellular structures. In addition, a vanadium-dependent variant of nitrogenase can reduce the toxic gas ...

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Hybrid redox-flow battery with a long cycle life

Researchers use the abundant chemical element manganese as active material

02-Jun-2021

Redox‑flow batteries store electrical energy in chemical compounds that are dissolved in an electrolyte. They are a particularly promising alternative to lithium‑ion batteries as stationary energy storage. A team headed by Prof. Dr. Ingo Krossing from the Institute of Inorganic and Analytical ...

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