Article
Chemistry, Multidisciplinary
Siying Wu, Fatemeh Zabihi, Rou Yi Yeap, Mohammad Reza Yousefi Darestani, Addie Bahi, Zeyu Wan, Shengyuan Yang, Peyman Servati, Frank K. Ko
Summary: Piezoelectric nanogenerators (PENGs) convert mechanical energy from body movement to electricity. Flexible piezoelectric yarns assembled with cesium lead halide perovskite decorated polyvinylidene fluoride (PVDF) nanofibers offer a comfortable and efficient solution for wearable energy harvesting. Optimal performance was achieved with CsPbI2Br decorated PVDF nanofibers, producing an output voltage of 8.3 V and current of 1.91 mu A, and maintaining performance after 19,200 cycles of mechanical stresses. The flexibility of piezoelectric yarns enables various textile integrations, demonstrating the potential for wearable mechanical energy harvesting.
Article
Chemistry, Multidisciplinary
Zhuzhu Shao, Xuan Zhang, Zihan Song, Jingfeng Liu, Xingang Liu, Chuhong Zhang
Summary: This study fabricates PVDF hollow fibers with adjustable wall thickness by using coaxial electrospinning. Simulation analysis shows that enlarging the inner diameter of the hollow fiber increases its effective deformation, resulting in enhanced piezoelectric output, which is consistent with the experimental results. This study is the first to reveal the influence mechanism of morphology regulation on the piezoelectric performance of PVDF hollow fibers from both simulation and experimental aspects. The optimal PVDF hollow fiber piezoelectric energy harvester (PEH) delivers a piezoelectric output voltage of 32.6 V, approximately 3 times that of the solid PVDF fiber PEH. Furthermore, the electrical output of the hollow fiber PEH can be stably stored in secondary energy storage systems to power microelectronics. This study provides an efficient approach for reconciling simulation and tailoring fiber PEH morphology to enhance performances for future self-powered systems.
Review
Polymer Science
Yubin Bai, Yanan Liu, He Lv, Hongpu Shi, Wen Zhou, Yang Liu, Deng-Guang Yu
Summary: This article reviews the piezoelectric properties of electrospun piezoelectric polymer membranes, with a focus on polyvinylidene fluoride (PVDF)-based electrospun nanofibrous membranes (NFs). It introduces various methods for increasing piezoelectric properties from the perspective of structure and species. The applications of NFs in the fields of biology, energy, and photocatalysis are also discussed, along with future research directions and development.
Article
Materials Science, Multidisciplinary
Sathiyanathan Ponnan, Thomas Walter Schmidt, Tianyuan Li, Harini Bhuvaneswari Gunasekaran, Xixian Ke, Yajing Huang, Suhail Mubarak, Arun Anand Prabu, Zixiang Weng, Lixin Wu
Summary: Magnesiochromite nanocrystalline powder (MgCr2O4) was successfully synthesized using an eggshell membrane as a template, and a robust piezoelectric nanogenerator using PVDF-MgCr2O4 nanofiber was fabricated with enhanced ferroelectric and piezoelectric characteristics. The nanogenerator showed good output voltage and power density in experiments, suitable for energy harvesting from human tapping motions.
ACS APPLIED POLYMER MATERIALS
(2021)
Article
Acoustics
E. Marechal, E. Geron, S. Hole
Summary: This paper characterizes the mechanical and electrical properties of PVDF and PVDF-TrFE films using the electro-acoustic reflectometry method in the frequency range of 20 MHz to 2 GHz. In addition, nonuniform poling is observed in PVDF-TrFE samples, leading to the generation of even and odd resonance modes.
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
(2023)
Article
Materials Science, Multidisciplinary
Deepak Kunwar, Irma Rocio Vazquez, Nathan Jackson
Summary: Polyvinylidene fluoride (PVDF) and its co-polymer formulations have been widely studied as thin and flexible piezoelectric materials, but the effects of solvents on their properties are not well understood. This study screened several solvents and found that the dipole moment of a solvent significantly influences the piezoelectric coefficient of the PVDF film.
Article
Nanoscience & Nanotechnology
Binbin Zhao, Zixuan Chen, Zefei Cheng, Shuo Wang, Tao Yu, Weidong Yang, Yan Li
Summary: In this study, high performance piezoelectric nanogenerators (PENGs) were prepared by surface-initiated polymerization of hyperbranched barium titanate nanowires with poly(methyl methacrylate) (PMMA). The PENG composed of poly(vinylidene fluoride) (PVDF) and core-double shell PMMA-coated hyperbranched BaTiO3 (BTO@HBP@PMMA) nanowires showed significantly improved output performance and durability. This study provides a new microstructure design for the fabrication of high performance PENGs.
ACS APPLIED NANO MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Mohammad A. Barique, Yoichiro Neo, Masaji Noyori, Lia Aprila, Masaya Asai, Hidenori Mimura
Summary: Highly-aligned and molecularly oriented P(VDF/TrFE) nanofiber webs were fabricated in this study, and a significant enhancement of the piezoelectric response was observed through systematic post-treatments. The output voltage and surface electric charge density of the nanofibers were greatly increased, indicating the potential for their use in wearable piezoelectric energy harvesters and flexible self-powered portable devices.
Article
Engineering, Chemical
Xuhui Hu, Xing Chen, Mattia Giagnorio, Chunhong Wu, Yunbai Luo, Claus Helix-Nielsen, Ping Yu, Wenjing Zhang
Summary: A new class of PVDF-based membranes suitable for membrane distillation was prepared via electrospinning. By tuning the solvent ratio and operating parameters, the classical fiber morphology of PVDF electrospun membranes was changed to generate a beaded structure. Increasing the bead density improved the water contact angle and reduced the membrane thickness, but decreased the membrane mechanical stability. Simultaneous deployment of 17 and 25 wt% of PVDF solutions in a double-needle electrospinning device enabled the fabrication of electrospun PVDF-beaded membranes with high hydrophobicity, low thickness, and good mechanical stability for membrane distillation.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
R. Eslami, A. Malekkhouyan, P. Santhirakumaran, M. Mehrvar, H. Zarrin
Summary: Flexible piezoelectric nanogenerators (PENGs) incorporating functionalized mono-/few-layered hexagonal boron nitride nanosheets (F-hBNNS) in a polyvinylidene fluoride (PVDF) matrix were fabricated for clean energy harvesting and powering low-power modules. The F-hBNNS showed enhanced piezoelectric properties compared to non-functionalized hBN, resulting in a 5.5 times increase in energy harvesting performance. The PENGs exhibited stable voltage output even after 1000 cycles of bending-unbending, making them compatible with wearable devices.
MATERIALS TODAY CHEMISTRY
(2023)
Article
Biotechnology & Applied Microbiology
Xuemei Ge, Shang Wu, Wen Shen, Lijuan Chen, Yan Zheng, Fen Ao, Yuanlan Ning, Yueyang Mao, Zhong Chen
Summary: In this study, gold nanoparticles and curcumin drug were incorporated into PVDF nanofibers using electrospinning. The morphological and drug release properties were characterized, and it was found that the addition of gold nanoparticles improved and prolonged the drug release. These results suggest the potential application of PVDF-AuNPs nanofiber membrane in nerve regeneration.
BIOENGINEERING-BASEL
(2022)
Article
Engineering, Electrical & Electronic
Amin Forouzan, Maryam Yousefzadeh, Masoud Latifi, Kui Yao
Summary: Increasing the contact area between electrodes and active piezoelectric nanofibers significantly improves the piezoelectric output of PNFs in response to mechanical input. Optimized electrode connections and coverage result in large output voltage magnitude, as observed in piezoelectric core-sheath yarn PNF samples.
IEEE SENSORS JOURNAL
(2022)
Article
Polymer Science
Chonthicha Iumsrivun, Takayuki Yui, Atsushi Yokoyama, Yuya Ishii
Summary: This study investigated the quasistatic direct electromechanical properties of submicron/micron electrospun fiber mats composed of different polymers. It was found that PMMA, aPS, and PDLLA fiber mats exhibited significant high direct electromechanical responses, while the PVA fiber mat showed minimal response. Furthermore, the direct electromechanical properties of PMMA and aPS fiber mats remained stable even 30 days after fabrication.
Article
Chemistry, Multidisciplinary
Da Woon Jin, Young Joon Ko, Chang Won Ahn, Sunghoon Hur, Tae Kwon Lee, Dong Geun Jeong, Minbaek Lee, Chong-Yun Kang, Jong Hoon Jung
Summary: The study demonstrates a multilayered PVDF film-based piezoelectric nanogenerator that can generate stable power outputs under harsh conditions like extreme low temperature and pressure, strong UV, etc. The nanogenerator shows high stability against UV, temperature and pressure variations, and excessive mechanical vibrations, with significantly enhanced power density at extreme temperatures. This work suggests the ML-PENG can serve as a reliable and economic power source in harsh and inaccessible environments on Earth and extraterrestrial planets like Mars.
Article
Materials Science, Multidisciplinary
Sheyda Mirjalali, Roohollah Bagherzadeh, Shayan Abrishami, Mohsen Asadnia, Shujuan Huang, Aron Michael, Shuhua Peng, Chun-Hui Wang, Shuying Wu
Summary: A new method of enhancing the piezoelectricity of PVDF nanofiber mats by electrospraying zinc oxide (ZnO) nanoparticles between layers of PVDF nanofibers is demonstrated. This approach results in multilayered PVDF+ZnO nanofiber mats with significantly increased piezoelectricity.
MACROMOLECULAR MATERIALS AND ENGINEERING
(2023)
Article
Biotechnology & Applied Microbiology
F. Bajerski, A. Buerger, B. Glasmacher, E. R. J. Keller, K. Mueller, K. Muehldorfer, M. Nagel, H. Ruedel, T. Mueller, J. Schenkel, J. Overmann
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
(2020)
Article
Polymer Science
Dominik de Cassan, Alexander Becker, Birgit Glasmacher, Yvonne Roger, Andrea Hoffmann, Thomas R. Gengenbach, Christopher D. Easton, Robert Hansch, Henning Menzel
JOURNAL OF APPLIED POLYMER SCIENCE
(2020)
Article
Cell & Tissue Engineering
Elmar Willbold, Mathias Wellmann, Bastian Welke, Nina Angrisani, Sarah Gniesmer, Andreas Kampmann, Andrea Hoffmann, Dominik de Cassan, Henning Menzel, Anna Lena Hoheisel, Birgit Glasmacher, Janin Reifenrath
JOURNAL OF TISSUE ENGINEERING AND REGENERATIVE MEDICINE
(2020)
Article
Biology
Vitalii Mutsenko, Sven Knaack, Lothar Lauterboeck, Dmytro Tarusin, Bulat Sydykov, Ramon Cabiscol, Dmitrii Ivnev, Jan Belikan, Annemarie Beck, Daniele Dipresa, Anja Lode, Thaqif El Khassawna, Marian Kampschulte, Roland Scharf, Alexander Yu. Petrenko, Sotirios Korossis, Willem F. Wolkers, Michael Gelinsky, Birgit Glasmacher, Oleksandr Gryshkov
Article
Multidisciplinary Sciences
Sarah Gniesmer, Ralph Brehm, Andrea Hoffmann, Dominik de Cassan, Henning Menzel, Anna Lena Hoheisel, Birgit Glasmacher, Elmar Willbold, Janin Reifenrath, Nils Ludwig, Ruediger Zimmerer, Frank Tavassol, Nils-Claudius Gellrich, Andreas Kampmann
Review
Engineering, Biomedical
Leal-Marin Sara, Kern Thomas, Hofmann Nicola, Pogozhykh Olena, Framme Carsten, Borgel Martin, Figueiredo Constanca, Glasmacher Birgit, Gryshkov Oleksandr
Summary: Human amniotic membrane (hAM) is widely used in tissue engineering, particularly in skin dressing and corneal treatment, due to its extracellular matrix structure and excellent biological properties. Recent research focuses on enhancing hAM performance by creating scaffolds mimicking the native membrane structure. Preservation techniques for maintaining biological functions such as angiogenesis, anti-inflammation, antifibrotic, and antibacterial activity are also essential for native hAM and tissue-engineered products.
JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART B-APPLIED BIOMATERIALS
(2021)
Article
Biotechnology & Applied Microbiology
Eva Vonbrunn, Marc Mueller, Melanie Pichlsberger, Monika Sundl, Alexander Helmer, Stefanie Angela Wallner, Beate Rinner, Alexandru-Cristian Tuca, Lars-Peter Kamolz, Dagmar Brislinger, Birgit Glasmacher, Ingrid Lang-Olip
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2020)
Article
Dentistry, Oral Surgery & Medicine
T. Hildebrand, L. Nogueira, P. T. Sunde, D. Orstavik, B. Glasmacher, H. J. Haugen
Summary: The methodology introduced in this study utilizes phosphotungstic acid (PTA) as a contrast-enhancement agent to visualize dental ultrastructures, including cellular and soft tissue components, by performing high-resolution nano-CT scans. The staining protocol allows for the concomitant visualization of hard tissues along with cellular layers and soft tissues in teeth.
INTERNATIONAL ENDODONTIC JOURNAL
(2021)
Article
Biochemistry & Molecular Biology
Oleksandr Gryshkov, Vitalii Mutsenko, Dmytro Tarusin, Diaa Khayyat, Ortwin Naujok, Ekaterina Riabchenko, Yuliia Nemirovska, Arseny Danilov, Alexander Y. Petrenko, Birgit Glasmacher
Summary: Alginate, a versatile natural biomaterial, is widely used in the biomedical field for its unique features such as biocompatibility and biodegradability. Core-shell capsules made from low viscosity high-G alginate show superior stability during in vitro culture and promote the formation of viable self-assembled cellular structures and maintenance of MSCs functionality compared to other materials. The proposed workflow of preparation, culture, and cryopreservation of core-shell capsules with self-assembled cellular structures appears to be a promising strategy for their off-the-shelf availability.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Materials Science, Multidisciplinary
Sara Knigge, Marc Mueller, Lara Fricke, Tobias Schilling, Birgit Glasmacher
Summary: Magnesium is a promising metal for resorbable cardiovascular implants due to its biocompatibility, corrosion tendency, and mechanical properties. A protective polymeric layer can slow down the corrosion rate, and coatings can improve tissue interaction. This study examines the corrosion mechanism of coated magnesium and finds that spin coatings provide efficient protection with a significantly lower corrosion rate. However, the degradation of the protective layer is accelerated by magnesium corrosion.
Review
Polymer Science
Christina Maria Winkler, Antonia Isabel Kuhn, Gesine Hentschel, Birgit Glasmacher
Summary: This study explores the advantages of using hydrogels as PIV channel materials and their properties in cardiovascular applications. Hydrogels have optical and mechanical properties that can match the refractive index of the fluid. By measuring the optical and mechanical properties, suitable hydrogel materials can be selected.
Article
Thermodynamics
Ali Chitsazan, Georg Klepp, Birgit Glasmacher
Summary: Jet impingements enhance heat and mass transfer rates in industrial drying machines. The study of heat transfer between multiple jets and a moving curved surface is difficult due to changing boundaries and surface curvature effects. The use of the SST k-omega turbulence model has shown reasonable accuracy in simulating real geometries for industrial drying applications.
INTERNATIONAL JOURNAL OF HEAT AND TECHNOLOGY
(2021)
Article
Thermodynamics
Ali Chitsazan, Birgit Glasmacher
INTERNATIONAL JOURNAL OF HEAT AND TECHNOLOGY
(2020)
Proceedings Paper
Engineering, Electrical & Electronic
Yana Nosova, Oleg Avrunin, Maksym Tymkovych, Sofiia Khudaieva, Nadiia Yurevych, Birgit Glasmacher
2020 IEEE 40TH INTERNATIONAL CONFERENCE ON ELECTRONICS AND NANOTECHNOLOGY (ELNANO)
(2020)
Proceedings Paper
Optics
Dierk Fricke, Alexander Becker, Lennart Juette, Merve Wollweber, Birgit Glasmacher, Bernhard Roth
PHOTONICS IN DERMATOLOGY AND PLASTIC SURGERY 2020
(2020)
