@inproceedings{KhaledReichlingBruhnsetal., author = {Khaled, W. and Reichling, S. and Bruhns, Otto T. and Monkman, Gareth J. and Egersd{\"o}rfer, Stefan and Baumann, Michael and B{\"o}se, Holger and Klein, Dagmar and Freimuth, Herbert and Tunayar, A. and Lorenz, A. and Pessavento, A. and Ermert, Helmut}, title = {Palpation Imaging using a Haptic System for Virtual Reality Applications in Medicine}, series = {Proceedings of the 12th Annual Medicine Meets Virtual Reality Conference: - Building a Better You: The Next Tools for Medical Education, Diagnosis, and Care. - Medicine Meets Virtual Reality (MMVR) - Newport Beach (California, USA). 2004}, booktitle = {Proceedings of the 12th Annual Medicine Meets Virtual Reality Conference: - Building a Better You: The Next Tools for Medical Education, Diagnosis, and Care. - Medicine Meets Virtual Reality (MMVR) - Newport Beach (California, USA). 2004}, language = {en} } @inproceedings{KhaledBruhnsReichlingetal., author = {Khaled, W. and Bruhns, Otto T. and Reichling, S. and B{\"o}se, Holger and Baumann, Michael and Monkman, Gareth J. and Egersd{\"o}rfer, Stefan and Meier, Alexander and Freimuth, Herbert and Tunayar, A. and Ermert, Helmut}, title = {A New Haptic Sensor Actuator System for Virtual Reality Applications in Medicine}, series = {Medical Image Computing and Computer-Assisted Intervention - MICCAI 2003: 6th International Conference, Montr{\´e}al, Canada, November 15-18, 2003, Proceedings}, booktitle = {Medical Image Computing and Computer-Assisted Intervention - MICCAI 2003: 6th International Conference, Montr{\´e}al, Canada, November 15-18, 2003, Proceedings}, publisher = {Springer}, isbn = {978-3540204626}, pages = {132 -- 140}, language = {en} } @article{KhaledBruhnsReichlingetal., author = {Khaled, W. and Bruhns, Otto T. and Reichling, S. and B{\"o}se, Holger and Baumann, Michael and Monkman, Gareth J. and Egersd{\"o}rfer, Stefan and Meier, Alexander and Klein, Dagmar and Freimuth, Herbert and Ermert, Helmut}, title = {A haptic system for virtual reality applications based on ultrasound elastography and electrorheological fluids}, series = {Acoustical Imaging}, journal = {Acoustical Imaging}, number = {27}, publisher = {Kluver Academic}, address = {Dordrecht \& New York}, doi = {10.1007/978-1-4020-2402-3_85}, pages = {667 -- 675}, language = {en} } @inproceedings{KhaledReichlingBruhnsetal., author = {Khaled, W. and Reichling, S. and Bruhns, Otto T. and Ermert, Helmut and Monkman, Gareth J. and Egersd{\"o}rfer, Stefan and Baumann, Michael and B{\"o}se, Holger and Freimuth, Herbert and Tunayar, A.}, title = {Palpation imaging using a haptic sensor actuator system for medical applications}, series = {Actuator 2004 : 9th International Conference on New Actuators \& 3rd International Exhibition on Smart Actuators and Drive Systems, 14-16 June 2004, Bremen, Germany}, booktitle = {Actuator 2004 : 9th International Conference on New Actuators \& 3rd International Exhibition on Smart Actuators and Drive Systems, 14-16 June 2004, Bremen, Germany}, publisher = {HVG Hanseatische Veranstaltungs-GmbH}, address = {Bremen}, pages = {379 -- 382}, language = {en} } @misc{PremSindersbergerMonkman, author = {Prem, Nina and Sindersberger, Dirk and Monkman, Gareth J.}, title = {Spectroscopic Analysis of Magneto-Active Polymers (MAP) - Poster}, series = {DFG-Tagung, Benediktbeuern, September 2017}, journal = {DFG-Tagung, Benediktbeuern, September 2017}, language = {en} } @misc{HecknerKesslerEgersdoerferetal., author = {Heckner, T. and Kessler, C. and Egersd{\"o}rfer, Stefan and Monkman, Gareth J.}, title = {Computer based platform for tactile actuator analysis}, series = {Actuator 2006 : 10th International Conference on New Actuators and 4th International Exhibition on Smart Actuators and Drive Systems, Bremen, Germany, 14 - 16 June 2006}, journal = {Actuator 2006 : 10th International Conference on New Actuators and 4th International Exhibition on Smart Actuators and Drive Systems, Bremen, Germany, 14 - 16 June 2006}, publisher = {HVG Hanseatische Veranst.-GmbH}, language = {en} } @misc{SindersbergerDiermeierMonkman, author = {Sindersberger, Dirk and Diermeier, Andreas and Monkman, Gareth J.}, title = {Investigation of the electrical properties of magneto-active polymers - Poster}, series = {DFG-Tagung, Benedikbeuern, September 2016}, journal = {DFG-Tagung, Benedikbeuern, September 2016}, language = {en} } @misc{MonkmanSindersberger, author = {Monkman, Gareth J. and Sindersberger, Dirk}, title = {Investigation of the electrical properties of magneto-active polymers}, series = {DFG-Tagung, Benedikbeuern, September 2015}, journal = {DFG-Tagung, Benedikbeuern, September 2015}, language = {en} } @incollection{NiklasHillerJaegeretal., author = {Niklas, Andreas and Hiller, Karl-Anton and J{\"a}ger, Andreas and Brandt, M. and Putzger, J{\"u}rgen and Ermer, C. and Schulz, Irene and Monkman, Gareth J. and Giglberger, Stephan and Hirmer, Marion and Danilov, Sergey N. and Ganichev, Sergey D. and Schmalz, Gottfried}, title = {In vitro optical detection of simulated blood pulse in a human tooth pulp model}, series = {Biocompatibility of Dental Materials}, booktitle = {Biocompatibility of Dental Materials}, editor = {Arenholt-Bindslev, Dorthe and Schmalz, Gottfried}, publisher = {Springer}, address = {Berlin ; Heidelberg}, language = {en} } @article{PremSindersbergerStriegletal., author = {Prem, Nina and Sindersberger, Dirk and Striegl, Birgit and B{\"o}hm, Valter and Monkman, Gareth J.}, title = {Shape memory effects using magnetoactive Boron-organo-silicon oxide polymers}, series = {Macromolecular Chemistry and Physics}, volume = {221}, journal = {Macromolecular Chemistry and Physics}, number = {15}, publisher = {Wiley}, doi = {10.1002/macp.202000149}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:898-opus4-23205}, pages = {1 -- 8}, abstract = {Thermomechanical shape memory materials have certain disadvantages when it comes to 3D volumetric reproduction intended for rapid prototyping or robotic prehension. The need to constantly supply energy to counteract elastic retraction forces in order to maintain the required geometry, together with the inability to achieve conformal stability at elevated temperatures, limits the application of thermal shape memory polymers. Form removal also presents problems as most viscoelastic materials do not ensure demolding stability. This work demonstrates how magnetoactive boron-organo-silicon oxide polymers under the influence of an applied magnetic field can be used to achieve energy free sustainable volumetric shape memory effects over extended periods. The rheopectic properties of boron-organo-silicon oxide materials sustain form removal without mold distortion.}, language = {en} } @article{MayerRabindranathBoerneretal., author = {Mayer, Matthias and Rabindranath, Raman and B{\"o}rner, Juliane and H{\"o}rner, Eva and Bentz, Alexander and Salgado, Josefina and Han, Hong and B{\"o}se, Holger and Probst, J{\"o}rn and Shamonin (Chamonine), Mikhail and Monkman, Gareth J. and Schlunck, G{\"u}nther}, title = {Ultra-Soft PDMS-Based Magnetoactive Elastomers as Dynamic Cell Culture Substrata}, series = {PLoS ONE}, volume = {8}, journal = {PLoS ONE}, number = {10}, publisher = {PLOS}, doi = {10.1371/journal.pone.0076196}, abstract = {Mechanical cues such as extracellular matrix stiffness and movement have a major impact on cell differentiation and function. To replicate these biological features in vitro, soft substrata with tunable elasticity and the possibility for controlled surface translocation are desirable. Here we report on the use of ultra-soft (Young's modulus <100 kPa) PDMS-based magnetoactive elastomers (MAE) as suitable cell culture substrata. Soft non-viscous PDMS (<18 kPa) is produced using a modified extended crosslinker. MAEs are generated by embedding magnetic microparticles into a soft PDMS matrix. Both substrata yield an elasticity-dependent (14 vs. 100 kPa) modulation of α-smooth muscle actin expression in primary human fibroblasts. To allow for static or dynamic control of MAE material properties, we devise low magnetic field (≈40 mT) stimulation systems compatible with cell-culture environments. Magnetic field-instigated stiffening (14 to 200 kPa) of soft MAE enhances the spreading of primary human fibroblasts and decreases PAX-7 transcription in human mesenchymal stem cells. Pulsatile MAE movements are generated using oscillating magnetic fields and are well tolerated by adherent human fibroblasts. This MAE system provides spatial and temporal control of substratum material characteristics and permits novel designs when used as dynamic cell culture substrata or cell culture-coated actuator in tissue engineering applications or biomedical devices.}, language = {en} } @article{ForsterMayerRabindranathetal., author = {Forster, Eva and Mayer, Matthias and Rabindranath, Raman and B{\"o}se, Holger and Schlunck, G{\"u}nther and Monkman, Gareth J. and Shamonin (Chamonine), Mikhail}, title = {Patterning of ultrasoft, agglutinative magnetorheological elastomers}, series = {Journal of applied polymer science}, volume = {128}, journal = {Journal of applied polymer science}, number = {4}, publisher = {Wiley}, address = {New York, NY}, doi = {10.1002/app.38500}, pages = {2508 -- 2515}, abstract = {A low-cost wax-cast molding technique for structuring ultrasoft (Young's modulus ≤ 40 kPa), agglutinative magnetorheological elastomer (MRE) material is presented. MRE structures ranging from a few millimeters down to the micrometer range with highly reproducible results are possible. Semitransparent MREs are also fabricated and their surfaces modified accordingly. This method opens new possibilities for MREs in biomedical engineering and microfluidic applications. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013}, language = {en} } @article{DiermeierSindersbergerKrenkeletal., author = {Diermeier, Andreas and Sindersberger, Dirk and Krenkel, Lars and Rosell, X. C. and Monkman, Gareth J.}, title = {Controllable Magnetoactive Polymer Conduit}, series = {The Open Mechanical Engineering Journal}, volume = {12}, journal = {The Open Mechanical Engineering Journal}, number = {1}, publisher = {Bentham}, pages = {192 -- 200}, abstract = {Objective: Magneto-active Polymers (MAP) are smart materials whose mechanical characteristics, such as elastic and shear moduli, may be controllable by means of an externally applied magnetic field. Methods: Various additives may be used to influence the characteristics of the polymer matrix whilst a suspension of soft and/or hard magnetic particles determine the magnetic properties of the composite. Both pre-cure and post-cure magnetization is possible. Results: A range of control strategies have been investigated for evaluation of the system using fluids of differing kinematic viscosity. Conclusion: Depending on the degree of magnetic field homogeneity, magneto-deformation and magnetostriction contribute to MAP actuation. This paper presents a novel application in the form of a peristaltic MAP tube system, applicable to flow control and pumping of hemorheological fluids in blood circulatory systems for biomedical research purposes.}, language = {en} }