@incollection{AkimbekovDigelRazzaque2022,
  author    = {Akimbekov, Nuraly S. and Digel, Ilya and Razzaque, Mohammed S.},
  title     = {Role of vitamins in maintaining structure and function of intestinal microbiome},
  series = {Comprehensive Gut Microbiota},
  booktitle = {Comprehensive Gut Microbiota},
  publisher = {Elsevier},
  address   = {Amsterdam},
  isbn      = {978-0-12-822036-8},
  doi       = {10.1016/B978-0-12-819265-8.00043-7},
  pages     = {320 -- 334},
  year      = {2022},
  abstract  = {The recent advances in microbiology have shed light on understanding the role of vitamins beyond the nutritional range. Vitamins are critical in contributing to healthy biodiversity and maintaining the proper function of gut microbiota. The sharing of vitamins among bacterial populations promotes stability in community composition and diversity; however, this balance becomes disturbed in various pathologies. Here, we overview and analyze the ability of different vitamins to selectively and specifically induce changes in the intestinal microbial community. Some schemes and regularities become visible, which may provide new insights and avenues for therapeutic management and functional optimization of the gut microbiota.},
  language  = {en}
}
@article{AbbasBalcBremenetal.2022,
  author    = {Abbas, Karim and Balc, Nicolae and Bremen, Sebastian and Skupin, Marco},
  title     = {Crystallization and aging behavior of polyetheretherketone PEEK within rapid tooling and rubber molding},
  series = {Journal of Manufacturing and Materials Processing},
  volume    = {6},
  journal   = {Journal of Manufacturing and Materials Processing},
  number    = {5},
  publisher = {MDPI},
  address   = {Basel},
  issn      = {2504-4494},
  doi       = {10.3390/jmmp6050093},
  pages     = {1 -- 12},
  year      = {2022},
  abstract  = {In times of short product life cycles, additive manufacturing and rapid tooling are important methods to make tool development and manufacturing more efficient. High-performance polymers are the key to mold production for prototypes and small series. However, the high temperatures during vulcanization injection molding cause thermal aging and can impair service life. The extent to which the thermal stress over the entire process chain stresses the material and whether it leads to irreversible material aging is evaluated. To this end, a mold made of PEEK is fabricated using fused filament fabrication and examined for its potential application. The mold is heated to 200 ◦C, filled with rubber, and cured. A differential scanning calorimetry analysis of each process step illustrates the crystallization behavior and first indicates the material resistance. It shows distinct cold crystallization regions at a build chamber temperature of 90 ◦C. At an ambient temperature above Tg, crystallization of 30\% is achieved, and cold crystallization no longer occurs. Additional tensile tests show a decrease in tensile strength after ten days of thermal aging. The steady decrease in recrystallization temperature indicates degradation of the additives. However, the tensile tests reveal steady embrittlement of the material due to increasing crosslinking.},
  language  = {en}
}