Hochschule für Life Sciences FHNW

Dauerhafte URI für den Bereichhttps://irf.fhnw.ch/handle/11654/22

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Bereich: Suchergebnisse

Gerade angezeigt 1 - 10 von 10
  • Publikation
    Geometric cuts by an autonomous laser osteotome increase stability in mandibular reconstruction with free fibula grafts. A cadaver study
    (Elsevier, 2024) Gottsauner, Maximilian; Morawska, Marta M.; Tempel, Simon; Müller-Gerbl, Magdalena; Dalcanale, Federico; de Wild, Michael; Ettl, Tobias
    Background Nonunion and plate exposure represent a major complication after mandibular reconstruction with free fibula flaps. These drawbacks may be resolved by geometric osteotomies increasing intersegmental bone contact area and stability. Purpose The aim of this study was to compare intersegmental bone contact and stability of geometric osteotomies to straight osteotomies in mandibular reconstructions with free fibula grafts performed by robot-guided erbium-doped yttrium aluminum garnet laser osteotomy.
    01A - Beitrag in wissenschaftlicher Zeitschrift
  • Publikation
    Geometric cuts by an autonomous laser osteotome increase stability in mandibular reconstruction with free fibula grafts. A cadaver study
    (Elsevier, 2024) Gottsauner, Maximilian; Morawska, Marta M.; Tempel, Simon; Müller-Gerbl, Magdalena; Dalcanale, Federico; de Wild, Michael; Ettl, Tobias
    01A - Beitrag in wissenschaftlicher Zeitschrift
  • Publikation
    Parameter optimization in a finite element mandibular fracture fixation model using the design of experiments approach
    (Elsevier, 08/2023) Maintz, Michaela; Msallem, Bilal; de Wild, Michael; Seiler, Daniel; Herrmann, Sven; Feiler, Stefanie; Sharma, Neha; Dalcanale, Federico; Cattin, Philippe; Thieringer, Florian Markus
    01A - Beitrag in wissenschaftlicher Zeitschrift
  • Vorschaubild
    Publikation
    Apical medium flowiInfluences the morphology and physiology of human proximal tubular cells in a microphysiological system
    (MDPI, 30.09.2022) Specioso, Gabriele; Bovard, David; Zanetti, Filippo; Maranzano, Fabio; Merg, Céline; Sandoz, Antonin; Titz, Bjoern; Dalcanale, Federico; Hoeng, Julia; Renggli, Kasper; Suter-Dick, Laura
    There is a lack of physiologically relevant in vitro human kidney models for disease modelling and detecting drug-induced effects given the limited choice of cells and difficulty implementing quasi-physiological culture conditions. We investigated the influence of fluid shear stress on primary human renal proximal tubule epithelial cells (RPTECs) cultured in the micro-physiological Vitrofluid device. This system houses cells seeded on semipermeable membranes and can be connected to a regulable pump that enables controlled, unidirectional flow. After 7 days in culture, RPTECs maintained physiological characteristics such as barrier integrity, protein uptake ability, and expression of specific transporters (e.g., aquaporin-1). Exposure to constant apical side flow did not cause cytotoxicity, cell detachment, or intracellular reactive oxygen species accumulation. However, unidirectional flow profoundly affected cell morphology and led to primary cilia lengthening and alignment in the flow direction. The dynamic conditions also reduced cell proliferation, altered plasma membrane leakiness, increased cytokine secretion, and repressed histone deacetylase 6 and kidney injury molecule 1 expression. Cells under flow also remained susceptible to colistin-induced toxicity. Collectively, the results suggest that dynamic culture conditions in the Vitrofluid system promote a more differentiated phenotype in primary human RPTECs and represent an improved in vitro kidney model.
    01A - Beitrag in wissenschaftlicher Zeitschrift
  • Vorschaubild
    Publikation
    3D printed microfluidic modules. Passive mixers and cells encapsulation in alginate
    (De Gruyter, 02.09.2022) Dalcanale, Federico; Caj, Michaela; Schuler, Felix; Ganeshanathan, Kireedan; Suter-Dick, Laura
    Passive mixers and droplet generation microfluidic chip modules were designed and manufactured using a commercial SLA 3D-printer. The mixing modules were designed specifically for 3D-printing and evaluated using FEM modeling. The co-flow droplet generator was used for cancer cells encapsulation and drug potency evaluation.
    01A - Beitrag in wissenschaftlicher Zeitschrift
  • Vorschaubild
    Publikation
    Quantitative assessment of point-of-care 3D-printed patient-specific polyetheretherketone (PEEK) cranial implants
    (MDPI, 07.08.2021) Seiler, Daniel; Dalcanale, Federico; Sharma, Neha; Aghlmandi, Soheila; Zeilhofer, Hans-Florian; Thieringer, Florian; Honigmann, Philipp
    Recent advancements in medical imaging, virtual surgical planning (VSP), and three-dimensional (3D) printing have potentially changed how today’s craniomaxillofacial surgeons use patient information for customized treatments. Over the years, polyetheretherketone (PEEK) has emerged as the biomaterial of choice to reconstruct craniofacial defects. With advancements in additive manufacturing (AM) systems, prospects for the point-of-care (POC) 3D printing of PEEK patient-specific implants (PSIs) have emerged. Consequently, investigating the clinical reliability of POC-manufactured PEEK implants has become a necessary endeavor. Therefore, this paper aims to provide a quantitative assessment of POC-manufactured, 3D-printed PEEK PSIs for cranial reconstruction through characterization of the geometrical, morphological, and biomechanical aspects of the in-hospital 3D-printed PEEK cranial implants. The study results revealed that the printed customized cranial implants had high dimensional accuracy and repeatability, displaying clinically acceptable morphologic similarity concerning fit and contours continuity. From a biomechanical standpoint, it was noticed that the tested implants had variable peak load values with discrete fracture patterns and failed at a mean (SD) peak load of 798.38 ± 211.45 N. In conclusion, the results of this preclinical study are in line with cranial implant expectations; however, specific attributes have scope for further improvements.
    01A - Beitrag in wissenschaftlicher Zeitschrift
  • Publikation
    CaP bone‐like coating for fast osseointegration of dental implants
    (Wiley, 05.10.2020) Dalcanale, Federico; Bitiqi, Hekuran; de Wild, Michael
    01A - Beitrag in wissenschaftlicher Zeitschrift
  • Publikation
    Implant surface modification by a controlled biomimetic approach
    (19.03.2019) Carino, Agnese; de Wild, Michael; Dalcanale, Federico
    06 - Präsentation
  • Publikation
    Reduction of particles on SLM surfaces
    (2018) Zimmermann, Simon; Schumacher, Ralf; Bill, Oliver; Dalcanale, Federico; de Wild, Michael
    04B - Beitrag Konferenzschrift
  • Publikation
    Development of a 3D biomechanical AC-joint model
    (06/2018) Sailer, Jannis; Bless, Nicolas; Dalcanale, Federico; Stürmer, Alexandra; Dietschy, Alain; de Wild, Michael; Müller, Andreas
    06 - Präsentation