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  1. 4 Engineering of Biomaterials
  2. 3 Polimery
  3. 2 Biocybernetics and Biomedical Engineering
  4. 2 Elektronika : konstrukcje, technologie, zastosowania
  5. 2 Inżynieria Materiałowa
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  1. 2 El Fray M.
  2. 2 Gruber Piotr
  3. 1 Antończak Arkadiusz
  4. 1 Babilas R.
  5. 1 Bednarkiewicz A.
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  1. 1 2022
  2. 2 2021
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1
Tlenki szeroko-przerwowe : zastosowania
Godlewski Marek
Elektronika : konstrukcje, technologie, zastosowania
|
2022
|
Vol. 63, Nr 10
20--23
PL
Tlenki szeroko-przerwowe są masowo stosowane w wielu dziedzinach, zaczynając od budownictwa, przemysłu spożywczego, w kosmetykach, w różnego rodzaju zasypkach, w medycynie. W artykule, na podstawie własnych prac, przedstawione są przykłady zastosowań tych tlenków w elektronice, fotowoltaice, w optoelektronice. Następnie omówione zostaną najnowsze zastosowania wybranych tlenków w medycynie.
EN
Wide-gap oxides are massively used in many fields, starting from construction industry, food industry, in cosmetics, in various kinds of powders, in medicine. The paper presents examples, based on own results, of oxides applications in electronics, photovoltaics, and optoelectronics. Next, the latest applications of selected oxides in medicine will be discussed.
2
Content available Antimicrobial sustainable biopolymers for biomedical plastics applications – an overview
Razak Nur Syifaa, Mohamed Rahmah
Polimery
|
2021
|
T. 66, nr 11-12
574--583
EN
The Covid-19 pandemic has increased the need for personal protective equipment (PPE), especially for medical personnel: face masks, full protective clothing, gloves and goggles. To date, they are usually made of thermoplastic polymers, such as polypropylene (PP). To reduce the risk of secondary infections it is essential to enhance the antimicrobial (especially antibacterial and antiviral) properties of the materials used in PPE. There are some attempts to modify materials by, for example, silver nanoparticles or zinc oxides. The increasing demand for personal protective equipment, mostly masks, leads to an increase of environmental problem of non-biodegradable wastes. Therefore some researches on use of safer for user’s health sustainable antimicrobial and biodegradable biopolymer fibers, such as cellulose, starch, chitosan, poly(lactic acid) (PLA) or poly(glycolic acid) (PGA), have been done. These biopolymers and their properties are discussed in this article.
PL
Pandemia Covid-19 zwiększyła zapotrzebowanie na środki ochrony osobistej (PPE), zwłaszcza dla personelu medycznego. Dotyczy to przede wszystkim maseczek, ale również odzieży ochronnej, rękawic, czy gogli. Obecnie wykonuje się je najczęściej z termoplastycznych polimerów, np. polipropylenu (PP). W celu poprawy właściwości przeciwbakteryjnych i przeciwwirusowych stosowanych materiałów, dokonuje się prób modyfikacji ich za pomocą np. nanocząstek srebra lub tlenków cynku. Zwiększenie zapotrzebowania na środki ochrony osobistej, zwłaszcza na maseczki, prowadzi do zwiększenia ilości odpadów, w dużej mierze nie biodegradowalnych. W celu rozwiązania tego problemu oraz poprawy właściwości przeciwbakteryjnych i przeciwwirusowych materiałów z użyciem bezpieczniejszych dla zdrowia użytkowników substancji, prowadzi się badania nad wykorzystaniem włókien z biopolimerów, takich jak celuloza, skrobia, chitozan, poli(kwas mlekowy) (PLA) lub poli(kwas glikolowy) (PGA). Właściwości antybakteryjne i antywirusowe, a także zagadnienia biodegradowalności tych biopolimerów, zostały omówione w niniejszym artykule.
3
Content available Formation and characterization of anodic titanium oxide films containing Ca, P and Si ions on selective-laser melted Ti13Zr13Nb alloy
Dziaduszewska Magda, Shimabukuro Masaya, Seramak Tomasz, Zieliński Andrzej, Hanawa Takao
Engineering of Biomaterials
|
2021
|
Vol. 24, no. 163
84
4
Content available Comparison of thermal, structural and morphological properties of poly(l-lactide) and poly(l-lactide)/ hydroxyapatite microspheres for laser sintering processes
Krokos Anna, Gazińska Małgorzata, Kryszak Bartłomiej, Dzienny Paulina, Stępak Bogusz, Olejarczyk Michał, Gruber Piotr, Kwiatkowski Ryszard, Bondyra Agnieszka, Antończak Arkadiusz
Polimery
|
2020
|
T. 65, nr 9
605--612
EN
A comparison of poly(l-lactide) (PLLA) and poly(l-lactide)/hydroxyapatite (PLLA/HAp) biocomposite microspheres fabricated by emulsion solvent evaporation technique designed for laser sintering (LS) applications is presented. Key properties such as thermal and structural as well as geometry, size distribution and powder flowability, which are crucial for this technique, are characterized to validate the applicability of microspheres for LS. The biocomposite microspheres turns out to be more suitable for the LS process than PLLA due to the higher thermal stability, broader sintering window and higher powder flowability.
PL
Porównano właściwości mikrosfer z poli(l-laktydu) (PLLA) i z biokompozytu poli(l-laktyd)/ hydroksyapatyt (PLLA/HAp), przygotowanych metodą emulsyjną z odparowaniem rozpuszczalnika, przeznaczonych do procesu spiekania laserowego (LS). W celu weryfikacji przydatności mikrosfer do LS scharakteryzowano kluczowe dla tej techniki właściwości: termiczne i strukturalne oraz geometrię, rozkład wymiarów i sypkość proszku. Wykazano, iż mikrosfery biokompozytowe wykazują lepsze właściwości predestynujące je do przetwarzania metodą LS niż mikrosfery PLLA, w tym większą stabilność termiczną, szersze okno parametrów spiekania i większą sypkość proszku.
5
Content available remote A review of fabrication polymer scaffolds for biomedical applications using additive manufacturing techniques
Szymczyk-Ziólkowska Patrycja, Labowska Magdalena Beata, Detyna Jerzy, Michalak Izabela, Gruber Piotr
Biocybernetics and Biomedical Engineering
|
2020
|
Vol. 40, no. 2
624--638
EN
This paper presents the current state-of-the art of additive manufacturing (AM) applications in the biomedical field, especially in tissue engineering. Multiple advantages of additive manufacturing allow to precise three-dimensional objects fabrication with complex struc-ture using various materials. Depending on the purpose of the manufactured part, different AM technologies are implemented, in which a specific material can be utilized. In the biomedical field, there are used several techniques such as: Binder Jetting, Material Extru-sion, Material Jetting, Powder Bed Fusion, Sheet Lamination, Vat Polymerization. This article focuses on the utilization of polymer materials (natural and synthetic) taking into account hydrogels in scaffolds fabrication. Assessment of polymer scaffolds mechanical properties enables personalized patient care, as well as prevents damage after implantation in human body. By controlling process parameters it is possible to obtain optimised mechanical properties of manufactured parts.
6
Content available Wybrane zastosowania skanerów i drukarek 3D w inżynierii rehabilitacyjnej
Ziarnecki Łukasz, Stańczak Sonia, Kawalec Patryk, Macko Marek, Mikołajewski Dariusz
Studia i Materiały Informatyki Stosowanej
|
2018
|
nr 2
24--28
PL
Skanowanie 3D umożliwia zapis charakterystyk obiektów fizycznych w formie plików cyfrowych, natomiast druk 3D umożliwia tworzenie obiektów fizycznych z plików cyfrowych. Obecne obszary zastosowań ww. technologii 3D są niezwykle szerokie. Technologia druku 3D może spowodować kolejną rewolucję (podobną do rewolucji cyfrowej) zarówno w gospodarce, jak i w życiu codziennym: modyfikując lub zastępując obecnie wykorzystywane modele wytwarzania, dystrybucji oraz konsumpcji towarów i usług. Celem pracy jest ocena, do jakiego stopnia wykorzystujemy zastosowania skanerów 3D i drukarek 3D w inżynierii rehabilitacyjnej.
EN
3D scanning allows for recording of the physical objects in the form of digital files. 3D printing allows for creating physical objects from digital files. Current areas of applications of the aforementioned 3D technologies are remarkably wide. 3D printing technology can provide another breakthrough (similar to digital revolution) both in country economy and everyday life, mainly through modification or replacement currently used models of manufacturing, distribution and consumption of products and services. This article aims at assesment the extent to which 3D printers and 3D scanners have been applied in rehabilitation engineering.
7
Content available Vaterite CaCO3-coated polymeric fibrous scaffolds for biomedical applications
Saveleva M., Ivanov A., Douglas T. E. L., Goring D., Skirtach A., Parakhonskiy B.
Engineering of Biomaterials
|
2017
|
Vol. 20, no. 143 spec. iss.
76
8
Content available Short calcium phosphate whiskers for medical applications
Biernat M., Jaegermann Z., Tymowicz-Grzyb P., Konopka G., Ciołek L., Pęczkowski P., Taźbierski P.
Engineering of Biomaterials
|
2017
|
Vol. 20, no. 143 spec. iss.
17
9
Content available Acrylic composite materials modified with bee pollen for biomedical application
Florkiewicz W., Sobczak-Kupiec A., Tyliszczak B.
Engineering of Biomaterials
|
2017
|
Vol. 20, no. 143 spec. iss.
27
10
Content available Medical and military applications of 3D printing
Mikołajewska E., Macko M., Mikołajewski D., Ziarnecki Ł., Stańczak S., Kawalec P.
Zeszyty Naukowe / Wyższa Szkoła Oficerska Wojsk Lądowych im. gen. T. Kościuszki
|
2016
|
Nr 1
128--141
EN
3D printing, 3D scanning and reverse engineering may constitute a significant breakthrough in research all over the world, especially within medical and military technologies. Particularly 3D printing seems to be a promising method to produce 3D objects manufactured layer-by-layer. The broader use of the above technologies may allow customization of various products and lower costs of design and production. At the same time progress in 3D printing technologies needs to be monitored and analyzed in order to deal with possible future threats. This article aims at investigating the extent to which the military and biomedical applications of 3D scanners and 3D printers are exploited, including in the framework of the authors’ own concepts, studies and observations.
11
Content available remote Ultra small clusters of gold nanoshells detected by SNOM
Cricenti A., Luce M., Moroni D., Salvetti O., D’Acunto M.
Opto-Electronics Review
|
2015
|
Vol. 23, No. 1
37-43
EN
Metal nanoshells are a type of nanoparticle composed by a dielectric core and a metallic coating. These nanoparticles have stimulated interest due to their remarkable optical properties. In common with metal colloids, they show distinctive absorption peaks at specific wavelengths due to surface plasmon resonance. However, unlike bare metal colloids, the wavelengths at which resonance occurs can be tuned by changing the core radius and coating thickness. One basic application of such property is in medicine, where it is hoped that nanoshells with absorption peaks in the near-infrared can be attached to cancerous cells. In this paper, we study the changes of optical response in visible and near infrared wavelengths from single to randomly distributed clusters of nanoshells. The results were obtained using a novel formulation of Mie theory in evanescent wave conditions, with a finite-difference time-domain (FDTD) simulation and experimentally on BaTiO3-gold nanoshells using a scanning near-optical microscope. The results show that the optical signal of a randomly distributed cluster of nanoshells can be supplementary tuned with respect to the case of single nanoshell depending by the geometric configuration of the clusters.
12
Content available remote The effect of catalyst and segmental composition on the crystallization of multiblock polyesters for biomedical applications
Staniszewski Z., Piegat A., Piątek-Hnat M., El Fray M.
Polimery
|
2014
|
T. 59, nr 7-8
592--598
EN
In the present work, segmented thermoplastic elastomers (TPE) containing hard segments of poly(ethylene terephthalate) (PET) and soft segments comprising amorphous fatty acid ester sequences based on dilinoleic acid (DLA) were synthesized. The aim was to obtain transparent materials with high strength and flexibility. Thermal properties of the obtained PET/DLA copolymers were examined using differential scanning calorimetry (DSC). It was found that segmental composition and new type of catalyst used for the synthesis of PET/DLA copolymers has influence on materials transparency.
PL
W ramach pracy zsyntezowano multiblokowe poliestrowe elastomery termoplastyczne (TPE), zawierające segmenty sztywne, takie jak w poli(tereftalanie etylenu) (PET), i segmenty giętkie zawierające amorficzne kwasy tłuszczowe na bazie kwasu dilinoleinowego (DLA). Celem było uzyskanie przezroczystych materiałów o dużej wytrzymałości i elastyczności. Właściwości termiczne otrzymanych kopolimerów PET/DLA zbadano za pomocą różnicowej kalorymetrii skaningowej (DSC). Stwierdzono, że wielkość udziału segmentów sztywnych i giętkich oraz zastosowanie nowego typu katalizatora do syntezy kopolimerów PET/DLA ma istotny wpływ na przeźroczystość materiałów, a tym samym na ich właściwości użytkowe.
13
Content available remote Fabrication of ternary Ca-Mg-Zn bulk metallic glasses
Nowosielski R., Borowski A., Guwer A., Babilas R.
Journal of Achievements in Materials and Manufacturing Engineering
|
2013
|
Vol. 56, nr 2
67--74
EN
Purpose: The paper describes the preparation, structure and thermal properties of ternary Ca-Mg-Zn bulk metallic glass in form of as-cast rods. Design/methodology/approach: The investigations on the ternary Ca-Mg-Zn glassy rods were conducted by using X-ray diffraction (XRD), scanning electron microscopy (SEM) which energy dispersive X-ray analysis (EDS). Findings: The X-ray diffraction investigations have revealed that the studied as-cast rod was amorphous. The fractures of studied alloy could be classified as mixed fracture with indicated “river” and “smooth” fractures. Both type of the fracture surfaces consist of weakly formed “river” and “shell” patterns and “smooth” regions. The “river” patterns are characteristic for metallic glassy alloys. Practical implications: The studied Ca-based bulk metallic glasses is a relatively new group of material. Ca-based bulk metallic glasses are applied for many applications in different elements. Ca-based bulk metallic glasses have many unique properties such as low density (~2.0 g/cm³), low Youn g’s modulus ( ~20 to 30 GPa). The elastic modulus of Ca-b ased BMGs is comparable to that of hum an bone s, and Ca, Mg, and Zn are biocompatible. These features make the Ca-Mg-Zn–based alloys attractive for use in biomedical applications. Originality/value: Fabrication of amorphous alloy in the form of rod ternary Ca-Mg-Zn alloy by pressure die casting method.
14
Content available Biologiczne zastosowania nanoluminoforów domieszkowanych lantanowcami
Misiak M., Prorok K., Bednarkiewicz A.
Wiadomości Chemiczne
|
2012
|
[Z] 66, 5-6
393-443
EN
Fluorescence is one of the most commonly used methods of biodetection, mainly due to the high sensitivity, non-invasiveness, simplicity, and also due to the availability of the whole range of powerful light sources, a wide range of photodetectors, and numerous and sensitive measuring methods. From the point of view of biodetection and bioimaging, the important characteristics of such fluorophores are large Stokes shift, narrow absorption/emission lines as well as stable and efficient luminescence. Traditional organic dyes applied in biology reveal very fast photobleaching and limited opportunities for simultaneous detection of many biomolecules, what stimulate development of new fluorescent markers. Fast and intensive development of nanotechnology and chemical engineering observed in recent years, aims at designing the nanophosphors or luminescent nanoplatforms, that demonstrate desirable properties and devised functionality. However, new phosphors are not included yet in broad practical applications, mainly because of the need to adapt the measuring apparatus so as to fully exploit their potential. From among the fluorescent nano-particles, silica dye doped nanoparticles, quantum dots, nanocolloidal metallic nanoparticles, and lanthanide doped nanoluminophores show the largest application potential. This article discusses the unique physico-chemical properties of lanthanide doped nanoparticles, which beside very long luminescence lifetimes and narrow emission bands, enable to obtain a visible emission under the near infrared photoexcitation (called anti-Stokes emission), offering improved sensitivity, stability, repeatability and accuracy of the fluorescent biodetection and bioimaging methods. In this review, physico-chemical properties of lanthanide doped nanoluminophores and many examples of their biological applications have been discussed. The first chapter presents spectral characteristics of rare-earth ions with particular regard to the mechanism of energy transfer and up-conversion, which is a fundamental difference and the decisive advantage compared with other known fluorescent markers. The luminescent properties of lantanides are demonstrated based on the most commonly used nanomaterials singly doped with Eu^3+ and Tb^3+ and the codoped matrices, like Yb^3+-Tm^3+, Yb^3+-Er^3+or Yb^3+-Ho^3+ co-doped phosphores. The features of these materials are best suited from the point of view of biodetection and bioimaging. The next chapter gives an overview of the applications of lanthanide doped nanoluminophores in biological sciences. Different types of hetero-/homo-genous tests and luminesce based sensors for pH, CO_2, the level of glucose, and other analytes are presented. Then, basic aspects of bioimaging, photodynamic and thermo-therapy, nanotermometry as well as nano-bio-technology platforms have been summarized. In conclusion suggestions of new research directions and new biological applications of lanthanide doped nanoparticles have been presented.
15
Content available Koncepcja zastosowania XML do przetwarzania danych zebranych przez system wykrywania zaburzeń widzenia barw
Laskowski M.
Pomiary Automatyka Kontrola
|
2012
|
R. 58, nr 11
947-949
PL
W pracy przedstawiono koncepcję wykorzystania XML do zebrania i uporządkowania danych z pochodzących z aplikacji biomedycznych badających prawidłowość widzenia barwnego, jak również możliwości ich wykorzystania do automatycznego diagnozowania rodzaju i typu ślepoty barw. W pracy omówiono również przykłady analizy i zastosowania zebranych informacji, m.in. w postaci publikowania ich w postaci ogólnodostępnego kanału RSS czy generowania wykresów w formacie SVG.
EN
The paper discusses the importance of proper detection of color vision disorders, not only in professional [5, 13, 17], but also in everyday life [14, 15] and describes the interactive method for detecting colorblindness shown in Fig. 1. This method can be used both as a diagnostic tool (e.g. for improving the process of medical examination of candidates for drivers [13]) or for creating the database containing information about people with color vision disorders, allowing further research on the subject. The latter is especially important concerning all introduced or planned legal regulations on granting access to public information for anyone regardless of any criteria (e.g. disability) [11]. The author analyses the usage of XML for sharing data gathered by applications using the described interactive method for detecting color vision disorders. The possibilities of using other means offered by the XML standard, such as RSS channels or generating SVG charts are also discussed.
16
Inteligencja obliczeniowa, zastosowania biomedyczne i ontologiczne bazy wiedzy : Wilga 2012
Romaniuk R. S.
Elektronika : konstrukcje, technologie, zastosowania
|
2012
|
Vol. 53, nr 10
154-161
PL
Artykuł jest piatą częścią z kilku, dokonującą przeglądu prac Jubileuszowego XXX Sympozjum Wilga 2012 Fotonika i Inżynieria Internetu, dotyczacą zastosowań inteligencji obliczeniowej w kryptografii, biomedycynie, komputingu. Przedstawiono wybór prac prowadzonych przez młodych uczonych w różnych krajowych ośrodkach naukowych. Tematyka Sympozjum Wilga 2012 obejmowała nanomateriaty i nanotechnologie dla fotoniki, światłowody czujnikowe i nieliniowe, obiektowo zorientowane projektowanie sprzętu, metrologia fotoniczna, zastosowania optoelektroniki i fotoniki, łączne projektowanie fotoniki i elektroniki, systemy optoelektoniczne i fotoniczne dla astronomii, techniki kosmicznej i eksperymentów fizyki wysokich energii, systemy pomiarowe dla tokamaka JET, eksperyment Pi-of-the-sky, eksperymenty CMS i TOTEM. Sympozjum Wilga jest corocznym podsumowaniem rozwoju licznych prac doktorskich prowadzonych w tej tematyce w kraju. Sympozjum Wilga jest również okazją do spotkania studentów i doktorantów z kraju i z zagranicy zaangażowanych w dzialalność w SPIE, IEEE, OSA oraz PSP - Polskie Stowarzyszenie Fotoniczne.
EN
This paper is the fifth part (out of several) of the research survey of the Jubilee XXXth edition of WILGA Symposium on Photonics and Web Engineering, concerned with high performance computing and artificial intelligence in cryptography, biomedicine and DNA computing. It presents a digest of chosen technical work results shown by young researchers from different technical universities from this country during the Jubilee XXXth SPIE-IEEE Wilga 2012 symposium on Photonics and Web Engineering. Topical tracks of the symposium embraced, among others, nanomaterials and nanotechnologies for photonics, sensory and nonlinear optical fibers, object oriented design of hardware, photonic metrology, optoelectronics and photonics applications, photonics-electronics co-design, optoelectronic and electronic systems for astronomy and high energy physics experiments, JET tokamak and pi-of-the sky experiments development. The symposium is an annual summary in the development of numerable Ph.D. theses carried out in this country in the area of advanced electronic and photonic systems. It is also a great occasion for SPIE, IEEE, OSA and PSP students to meet together in a large group spanning the whole country with guests from this part of Europe.
17
Content available remote Design of alumina-zirconia nanocomposite powders for implants development
Montanaro L., Chevalier J., Naglieri V., Joly-Pottuz L.
Materiały Ceramiczne
|
2010
|
T. 62, nr 3
335-341
EN
A 95 vol.% alumina – 5 vol.% zirconia composite powder was produced following a simple surface modification procedure, starting from a zirconium chloride aqueous solution and a commercial, ultra-fine α-alumina powder. The evolution of phases as well as of the nano-microstructure was followed as a function of powder heat-treatments prior to sintering, in order to develop a preliminary "nano-powder engineering" approach, in view of a controlled tailoring of the microstructural features of the dense materials.
PL
Proszek kompozytowy o składzie 95 % obj. Al2O3 – 5 % obj. ZrO2 wyprodukowano postępując zgodnie z prostą procedurą modyfikowania powierzchni, wychodząc z roztworu wodnego chlroku cyrkonu i handlowego ultra-drobnego proszku α-Al2O3. Ewolucję składu fazowego, a także nano-mikrostruktury śledzono jako funkcję obróbki cieplnej proszku poprzedzającej spiekanie, aby rozwinąć problem wstępnej "inżynierii nanoproszku", biorąc pod uwagę kontrolowane kształtowanie cech mikrostrukturalnych gęstych materiałów.
18
Content available remote Polysulphone and polyethersulphone hollow fiber membranes with developed inner surface as material for bio-medical applications
Chwojnowski A., Wojciechowski C., Dudziński K., Łukowska E.
Biocybernetics and Biomedical Engineering
|
2009
|
Vol. 29, no. 3
47-59
EN
A method of obtaining hollow fibers with developed internal surface has been elaborated. As materials were selected synthetic polymers, namely polysulphone Udel P-1700 and polyethersulphone Ultrason E2020P. This method enables the obtaining of such membranes by means of a spinneret with smooth walls and the installation for spinning hollow fibers. A mechanism of the formation of corrugations on the membrane internal surface has been proposed. The effect of spinning parameters on membrane formation has been described. An explanation of the reasons of formation of defects on the external skin layer has been proposed.
19
Content available Designing polymer/ceramic nanocomposites of tailored structure and properties for biomedical applications
El Fray M., Boccaccini A. R.
Inżynieria Biomateriałów
|
2005
|
R. 8, nr 46
25--27
20
Content available remote Sol-gel technology for biomedical engineering
Podbielska H., Ulatowska-Jarża A.
Bulletin of the Polish Academy of Sciences. Technical Sciences
|
2005
|
Vol. 53, nr 3
261-271
EN
Sol-gel derived silica possess many promising features, including low-temperature preparation procedure, porosity, chemical and physical stability. Applications exploiting porous materials to encapsulate sensor molecules, enzymes and many other compounds, are developing rapidly. In this paper some potential applications, with emphasis on biomedical and environmental ones, are reviewed. The material preparation procedure is described and practical remarks on silica-based sol-gels are included. It is reported that sol-gels with entrapped various molecules may be used in construction of implants and coatings with bioactive properties. It is shown how to exploit the sol-gel production route for construction of sol-gel coated fiberoptic applicators for lasertherapy. The applications of bioactive materials are discussed, as well. 11 is demonstrated that it is possible to immobilize photosensitive compounds in sol-gel matrix without loosing their photoactivity. Some examples of sol-gel based biosensors are demonstrated, as well, showing their potential for detecting various gases, toxic substances, acidity, humidity, enzymes and biologically active agents.
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