Sammelband (Herausgeberschaft für den kompletten Band)
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- Sammelband (Herausgeberschaft für den kompletten Band) (24) (entfernen)
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The intention of this compilation of articles was to introduce brand-new developments in the field of chemical imaging which have not been discussed in previous review articles. These include the design of new sensor nanomaterials based on photon uponversion crystals which convert near-infrared excitation light into sensor signals in the visible wavelength range highlighted by Christ and Schäferling. Sun, Ungerböck and Mayr describe the state of the art in oxygen imaging in microreactors and microfluidic devices. Miniaturized sensors for the imaging of oxygen, pH and temperature in microchips, microfluidic platforms and microbioreactors are reviewed by Pfeiffer and Nagl. Furthermore, Dmitriev and Papkovsky present a critical assessment of the applicability of probes for intracellular oxygen sensing.
I hope these articles provide an interesting insight into advanced luminescent sensor materials and the applications of optical micro- and nanosensors in fluorescence imaging today and will be inspiring for the reader. Finally, I would like to thank all authors and referees for spending their time to enable this collection of articles.
Materials challenges and testing for manufacturing, mobility, biomedical applications and climate
(2014)
Laser and plasma processing of materials is a rapidly growing field in fundamental science and materials technology requiring both a multidisciplinary approach and a wide-ranging knowledge. The topical issue Laser and plasma processing for advanced materials of the Journal of Optoelectronics and Advanced Materials covers a number of recent research highlights. The production of thin functionalized films, nanoparticles and nanocomposites using pulsed laser ablation (PLA) and deposition (PLD) or plasma treatment is discussed in a number of papers. Additionally, experiments using matrix assisted pulsed laser evaporation (MAPLE) are described. It is shown in this book that nanoparticles are generated and/or processed by laser or plasma interaction in very different environments ranging from gaseous and liquid to solid phase. Material properties change if the particle size is reduced below a critical limit allowing e.g. optical, electronic, biomedical, and environmental applications. Micro- and nanostructuring of surfaces (2D) and within the bulk of transparent materials (3D) is presented in various articles. In many cases, ultrashort laser pulses were applied. Furthermore, nanoparticles interacting with laser radiation can be used for nanostructuring purposes. Apart from experimental investigations, numerical modeling of the interaction of femtosecond laser pulses with materials has also been performed to understand structure formation theoretically. Especially for bio-functionalization, selective deposition of sensitive materials (e.g. proteins, cells) on surfaces is needed. A sophisticated process used for this purpose is known as laser induced forward transfer (LIFT). Recent findings regarding the LIFT method are depicted in this issue. Laser annealing of implanted dopants and thin films aiming to enhance structural and electrical properties, sensor dicing by laser radiation, and laser or plasma surface modification for the improvement of solar cells or polymer wettability change are but a few of the subjects focusing on applied research. Additionally, hybrid processes combining plasma spraying and laser-induced melting to control microstructure of coatings are introduced. Last but not least, achievements regarding analytical techniques are outlined. Laser induced breakdown spectroscopy (LIBS) make up a large part of this class. Additionally, the contributions to optical emission spectroscopy and mass spectrometry of plasma processes are significant.