A5001225683- Electrospun Nanofibers in Biomedical Applications
- Advanced Sensor and Energy Harvesting Materials
- Electrohydrodynamics and Fluid Dynamics
- Silk-based biomaterials and applications
- Bone Tissue Engineering Materials
- Tissue Engineering and Regenerative Medicine
- Orthopaedic implants and arthroplasty
- Orthopedic Infections and Treatments
- Conducting polymers and applications
- Spectroscopy Techniques in Biomedical and Chemical Research
- Acoustic Wave Resonator Technologies
- Ferroelectric and Piezoelectric Materials
- Proteoglycans and glycosaminoglycans research
- Ultrasonics and Acoustic Wave Propagation
- 3D Printing in Biomedical Research
- Optical Coherence Tomography Applications
- Sensor Technology and Measurement Systems
- Innovative Energy Harvesting Technologies
- Innovative Microfluidic and Catalytic Techniques Innovation
- Aerosol Filtration and Electrostatic Precipitation
- Nanofabrication and Lithography Techniques
- Infection Control and Ventilation
- Advancements in Transdermal Drug Delivery
- Optical Imaging and Spectroscopy Techniques
- Surface Modification and Superhydrophobicity
Contipro (Czechia)
2014-2025
Wrocław University of Science and Technology
2023
AGH University of Krakow
2023
Laboratoire Plasma et Conversion d'Energie
2009
Technical University of Liberec
2005-2007
AlbaNova
2007
Hyaluronic acid (HA), a natural polymer produced through biotechnological processes, is initially synthesized with high molecular weight, which subsequently reduced for specific applications. This work aims to develop an experimental laboratory device that enables the controlled depolymerization of HA achieve targeted weight. accomplished by applying precisely regulated temperature and pressure conditions facilitate cleavage chains as they pass narrow capillary. The process also allows...
The aim of the study was to develop an orthopedic implant coating in form vancomycin-loaded collagen/hydroxyapatite layers (COLHA+V) that combine ability prevent bone infection with promote enhanced osseointegration. investigated employing a rat model simulated clinically relevant implant-related introduction bacterial contamination during surgical procedure using clinical isolate Staphylococcus epidermidis. enhance osseointegration minipig terminated growth. Six weeks following...
Conventional electrospinning produces randomly ordered nanofibers, however many potential applications require precisely defined morphology and anisotropic properties of nanofibrous materials. In this work, a collector consisting two segments has been used to prepare uniaxially nanofibers. Optimized design comes from both analytical calculations electrostatic strength in the vicinity electrodes experimental verification by polyvinyl alcohol nanofibers fabrication. The transversal electric is...
The last decade has seen an extensive development of the field nanomaterials which are currently being used in their first commercial applications. This rapid is necessarily connected with certain technological demands. paper describes a technology for manufacture from solutions by electrostatic spinning or spraying. Although this method been well known since century, there still only few high-quality devices that can be research new nanomaterials. main reason process manufacturing...
Natural and synthetic nanostructured polymers in the form of fibers are used medical cosmetic applications. One main advantages electrospinning method is its flexibility, which allows to use airflow vicinity a spinneret increase production. The acceleration solvent evaporation rate solution feed be increased. Experimental results confirmed significant production hyaluronic acid poly(ethylene) oxide nanofibers. occurs when higher velocity temperature used, causing decrease partial pressure...
Analysis of the nanofibers based on Raman spectroscopy and singular value decomposition is presented. The calibration results included local homogeneity samples shown through maps. SVD after before curve application recalculation to percents.
Electrospinning is a very promising nanotechnology method, mostly thanks to industrial scale up ability, relatively low purchase cost, and huge variability. Nevertheless, its principal disadvantage the way in which individual nanofibers are randomly deposited while being collected onto collector after passing through chaotic whipping phase. Present future applications of nanomaterials will need their precise, ordered intrinsic structures, or may even require accurately determined anisotropic...
This paper studies the causes of thickness inhomogeneities in continuously deposited large-area nanofibrous layers, introduces a new method their rapid analysis and suggests technical measures to ensure greater uniformity produced layers. The layers over large surface areas its testing have recently appeared as very important issues following scale up production from laboratory industrial levels, i.e. point-to-plate arrangement roll-to-roll processing. basic electrostatic spinning produces...
Abstract To date there is no well accepted method for the measurement of piezoelectric thin films displacements. The difficult since displacement very small. As are 'clamped' to a silicon substrate, contribution substrate bending can completely mask 'true' value d 33 coefficient. Whilst double beam interferometers (DBI) have been specifically developed circumvent this effect, results presented in paper demonstrate that specific sample preparation yield equivalent using single laser Doppler...
Soft X-ray microscopy is a powerful tool for investigations of, example, polymers or soils in their natural liquid environment. This requires wet-specimen chamber. Compact allows the horizontal mounting of such samples, thereby reducing influence gravitational forces. We have developed chamber compact microscope. The vacuum compatible, which reduces exposure time. sealing achieved by combination mechanical and bio-compatible glue. With specimens can be kept an aqueous environment 10(-4) mbar...
We report on electrospinning of As3S7 chalcogenide glass from propylamine solution. The prepared layers consist nanofibers with a typical diameter ~100 nm. deposited are highly porous the nature process. calculated effective-refractive index value is n ~1·165, at λ = 1550 nm; assuming 87 vol.% air and bulk 2·27 same wavelength. In contrast to continuous 2-micron thick spin-coated layer, which had absorption edge near 420 nm, 10-micron nanofibrous layer no significant all. relative stiffness...
This paper is about the validation of minimal electronic structure developed around piezoelectric transformer for high voltage mems supply. High and compactness are main requirements leading to development circuit. The selected solution discussed experimentally validated by a first prototype.
A composite nanofibrous layer containing collagen and hydroxyapatite was deposited on selected surface areas of titanium acetabular cups. The the irregular these 3D objects using a specially developed electrospinning system designed to ensure stability spinning process produce approximately 100 micrometers thick with an adequate thickness uniformity. It verified that had intended nanostructured morphology throughout its entire prepared sufficiently adhered smooth model implants even after...
This paper presents some nonlinear piezoelectric properties and strain simulation in lead zirconate-titanate Pb(Zr x Ti1 − )O 3 (PZT) thin films, sputtered on the Pt/Ti/SiO 2 /Si substrates. The samples PZT (60/40), (111) orientation, rhombohedral phase composition, (54/46), (001) near MPB were prepared. Thicknesses of under test estimated as 1.1, 1.3 2.2 μ m respectively. For first characterizations, X-ray diffraction (XRD), hysteresis, capacitance-voltage C(V) vs. temperature dependencies...
This contribution focuses on the effects of electrospinning process homogeneity nanofibrous tubular structures caused by different emitters. Six types emitters were used for production tubes. For all, electric potential and field simulated. The quality produced tubes was verified scanning electron microscopy, contact measurement thickness a new digital image processing method based transillumination. analysis spun samples proved that therefore parameters prepared are significantly influenced...
The 4SPIN ® desktop laboratory device has been developed for the deposition of nanomaterials dedicated not only to medical applications, but also other fields such as nanoelectronics, optics, filtration, etc.The apparatus integrates various methods enable preparation nanostructured materials according researching demands.Nine principally different emitters (most them are usable in method called electroblowing) and six collectors researchers perform types experiments.This allowed nanofibrous...
Non-invasive optical diagnostic methods allow important information about studied systems to be obtained in a non-destructive way. Complete diagnosis requires the chemical composition as well morphological structure of sample. We report on development an opto-mechanical probe that combines Raman spectroscopy (RS) and coherence tomography (OCT), two provide all crucial needed for non-invasive diagnosis. The aim this paper is introduce technical design, construction optimization dual combining...