@misc{ErekathSeidlitzSchreineretal., author = {Erekath, Swathi and Seidlitz, Holger and Schreiner, Monika and Dreyer, Christian}, title = {Food for future: Exploring cutting-edge technology and practices in vertical farm}, series = {Sustainable Cities and Society}, volume = {106}, journal = {Sustainable Cities and Society}, issn = {2210-6707}, doi = {10.1016/j.scs.2024.105357}, abstract = {With the growing urbanized population, vertical farming becomes indispensable in eradicating hunger and ensuring food security for the future. Food security has become a major challenge for the future owing to the scarcity of land, rising global population, urbanization, and polluted soil and water resources. In this scenario, vertical farming as an innovative food production technology caters increased productivity with limited resources and improved carbon footprint. The review begins with a brief introduction to the concept of vertical farming, its opportunities and implications on the economy, environment, and society as a whole, following with an in-depth qualitative analysis of the cutting-edge innovations/technologies are presented in detail. Contrary to the numerous research focusing on mere analysis of economic viability and statistical analysis, the aim is to introduce real cutting-edge technologies that address the challenges of vertical farms such as lack of technical skills or energy requirements. The recent advances of vertical farms includes construction of outer vertical structure and growing shelves using light weight and transparent polymer composites, engineered and tunable LEDs lightings, 3-D printed and recyclable growing substrates, AI-integrated IoTs for environment control, harvesting materials for renewable energy storage etc. Such material innovations with inclusion of AI and robotics transform automated vertical farming into 'state of the art' agricultural technology. Production shelf fabricated using UV cured GBOV-glass fiber composite with 60\% transparency can overcome the material weight limitation, corrosion, light obstructions etc. associated with the conventional steel shelves. Replacing non-renewable fossil fuels using renewable energy harvested by carbon dots, fluorescent materials, and perovskite solar cells is recommended to minimize the high capital investments associated with energy as well as to reduce the environmental impact. Smart materials such as phase change materials and thermoresponsive windows control the amount of energy expended whereas smart substrate promotes resource management. Application of the newest technology AI in vertical farming facilitates precise control of environment, early pest detection, automation of farming processes, data-driven decision making and precision agriculture. In short, vertical farms utilizing modern innovations of science and technology caters enhanced productivity, improved quality, reduced cost, resource management and sustainability. Hence, automated and sustainable vertical farms promoting global food security and circularity have the potential to transform into burgeoning technology of future.}, language = {en} } @misc{RecupidoLamaSteffenetal., author = {Recupido, Federica and Lama, Giuseppe Cesare and Steffen, Sebastian and Dreyer, Christian and Seidlitz, Holger and Russo, Vincenzo and Lavorgna, Marino and De Luca Bossa, Ferdinando and Silvano, Selena and Boggioni, Laura and Verdolotti, Letizia}, title = {Efficient recycling pathway of bio-based composite polyurethane foams via sustainable diamine}, series = {Ecotoxicology and Environmental Safety}, volume = {269}, journal = {Ecotoxicology and Environmental Safety}, issn = {0147-6513}, doi = {10.1016/j.ecoenv.2023.115758}, abstract = {Aminolysis is widely recognized as a valuable chemical route for depolymerizing polymeric materials containing ester, amide, or urethane functional groups, including polyurethane foams. Bio-based polyurethane foams, pristine and reinforced with 40 wt\% of sustainable fillers, were depolymerized in the presence of bio-derived butane-1,4-diamine, BDA. A process comparison was made using fossil-derived ethane-1,2-diamine, EDA, by varying amine/polyurethane ratio (F/A, 1:1 and 1:0.6). The obtained depolymerized systems were analyzed by FTIR and NMR characterizations to understand the effect of both diamines on the degradation pathway. The use of bio-based BDA seemed to be more effective with respect to conventional EDA, owing to its stronger basicity (and thus higher nucleophilicity), corresponding to faster depolymerization rates. BDA-based depolymerized systems were then employed to prepare second-generation bio-based composite polyurethane foams by partial replacement of isocyanate components (20 wt\%). The morphological, mechanical, and thermal conductivity properties of the second-generation polyurethane foams were evaluated. The best performances (σ10 \%=71 ± 9 kPa, λ = 0.042 ± 0.015 W∙ m-1 ∙K-1) were attained by employing the lowest F/A ratio (1:0.6); this demonstrates their potential application in different sectors such as packaging or construction, fulfilling the paradigm of the circular economy.}, language = {en} } @incollection{DreyerSchneiderKeiletal., author = {Dreyer, Christian and Schneider, J. and Keil, Norbert and Zawadzki, Crispin and Yao, Huihai}, title = {Material Development for Integrated Optics, Microelectronics and Display-Technology - Selected Examples}, language = {en} } @inproceedings{KeilYaoZawadzkietal., author = {Keil, Norbert and Yao, Huihai and Zawadzki, Crispin and Radmer, O. and Beyer, F. and Bauer, Monika and Dreyer, Christian and Schneider, J{\"u}rgen}, title = {Recent Progress in Polymer Based Photonic Devices}, series = {Proceedings, ECOC 2004, 30th European Conference on Optical Communication, September 5 - 9, 2004 in Stockholm, Sweden, Vol. 4}, booktitle = {Proceedings, ECOC 2004, 30th European Conference on Optical Communication, September 5 - 9, 2004 in Stockholm, Sweden, Vol. 4}, publisher = {Royal Institute of Technology, Kista Photonics Research Center}, address = {Kista}, isbn = {91-975291-4-1}, pages = {802 -- 805}, language = {en} } @inproceedings{KeilYaoZawadzkietal., author = {Keil, Norbert and Yao, Huihai and Zawadzki, Crispin and Beyer, F. and Radmer, O. and Bauer, Monika and Dreyer, Christian and Schneider, J{\"u}rgen}, title = {Monolithically Integrated Polymer-Based Reconfigurable Optical Add-Drop Multiplexer (ROADM)}, language = {en} } @inproceedings{DreyerSchneiderBaueretal., author = {Dreyer, Christian and Schneider, J{\"u}rgen and Bauer, Monika and Keil, Norbert and Zawadzki, Crispin and Yao, Huihai and Radmer, O.}, title = {New Triazine Containing Fluoropolymers and Applications}, language = {en} } @inproceedings{BauerDreyerKahleetal., author = {Bauer, Monika and Dreyer, Christian and Kahle, Olaf and Schuldt, U. and Uhlig, C. and Schulze, K. and Schulz, Stefan E. and Uhlig, M. and Geßner, Thomas}, title = {Comparison of Fluorinated and Non-Fluorinated Novel Low-k Polycyanurates for Integrated Circuit (IC) Metallization}, language = {en} } @inproceedings{DreyerSchneiderBauer, author = {Dreyer, Christian and Schneider, J{\"u}rgen and Bauer, Monika}, title = {Adjustment of the Birefringence of High-Performance Polymers for Optical Applications}, language = {en} } @inproceedings{SureshDreyerBaueretal., author = {Suresh, S. and Dreyer, Christian and Bauer, Monika and Topping, C. and Smith, D. W.}, title = {Novel Hybrid-Monomers Containingthe Trifluorovinyloxy-Group and the Cyanato-Group}, language = {en} } @inproceedings{SommerDreyer, author = {Sommer, C. and Dreyer, Christian}, title = {Polymerentwicklung im TPO Mechatronic}, language = {de} }