DE – Page 4 – TechConnect Briefs

Surface Hydrophobization of Micro- and Nanofibrillated Cellulose and Blending Property in PLA Nanocomposites

Samyn P., University of Freiburg - Freiburg Institute for Advanced Studies, DE

Cellulose fibers are advantageous reinforcing materials for bio-based composites because of their availability and good mechanical properties. Several chemical processes have been developed to turn the native fibers into micro- (MFC) or nanofibrillated (NFC) cellulose [...]

Scale-up of metal nanoparticle production

Stein M., Kruis F.E., University of Duisburg-Essen, DE

Metal nanoparticles are used in numerous products and applications to enhance their performance or efficiency. Different gas phase synthesis routes are known to form metal nanoparticles, however only few are capable for scaling-up in terms [...]

Insight into bacteria: magnetosomes chains under photoemission electron and scanning electron microscopes

Keutner C., von Bohlen A., Berges U., Espeter P., Schneider C.M., Westphal C., TU Dortmund University, DE

Magnetotactic bacteria (MTB) are forming magnetosome chains consisting of greigite or iron oxides. In technological, medical, and environmental applications magnetosomes are considered as perspective material. Among all techniques applied to MTB, two providing spatial, chemical, [...]

Production technologies for large area flexible electronics

Kolbusch T., Crone K., Coatema Coating Machinery GmbH, DE

There is a wide variety of printed large area flexible electronic devices and at the same time a number of different visions and estimates for this new emerging industry and market. But as every new [...]

Trap-induced apparent linearity of CNTFETs (invited)

Haferlach M., Claus M., TU Dresden, DE

Compared to conventional bulk semiconductors carbon nanotubes (CNTs) possess a number of properties which may make CNT technology superior for certain applications. In particular, the one-dimensional (1D) transport in CNTs leads not only to a [...]

Low-Cost Sensing Platforms Based on Tunable 1D Photonic Crystals Integrated with Organic Light-Emitting Diodes and Photodetectors

Pavlichenko I., Exner A.T., Lugli P., Scarpa G., Lotsch B.V., Ludwig Maximilian University of Munich, DE

Herein, we present an innovative detection platform based on utilizing 1D PCs as responsive multilayers for intensity modulation of narrow-band light sources, namely, organic light-emitting diodes (OLEDs), as shown in Figure 1. The tunable range [...]

Precision Micro-Optical Elements for Manufacturing of Gas Sensors using IR-Absorption

Quenzer H.-J., Janes J., Stenchly V., Schwarzelbach S., Wagner B., Dudde R., Fraunhofer Inst. Silicon Technology, DE

A new process technology has been developed by Fraunhofer Institute Silicon Technology for manufacturing precise optical components from borosilicate glass by eight inch wafer batch processing. Glass forms are produced by a contact-less glass flow [...]

Pseudocapacitive random and aligned nano-porous electrode materials for supercapacitors

Saruhan B., Gönüllü Y., Arndt B., German Aerospace Center, DE

Commercial electric double layer capacitors store energy in an electric field. This is caused by charged particles arranged on two electrodes consisting mostly of carbon, in the form of a double layer. Such double layer [...]

Ultrasonically-Assisted Preparation and Functionalization of Graphene

Hielscher K., Hielscher Ultrasonics, DE

Since the extraordinary characteristics of graphite and graphene are known, several methods for its preparation have been developed. Beside to chemical production of graphenes from graphene oxide in multi-step processes, for which very strong oxidizing [...]

Determining the environmental benefit of artificial spider silk products

Lauterbach A.Y., Scheibel T., University of Bayreuth, DE

Spider silk is a highly interesting material with outstanding properties. Because the usage of natural spider silk for technical applications is not possible, the production of recombinant spider silk was established. This production process has [...]