Wyniki wyszukiwania - Biblioteka Nauki

1

PoWieFoNa [Pomorsko-Wielkopolskie Forum Nanotechnologiczne] 2015. Szóste Warsztaty Nanotechnologiczne. Streszczenia

100%

Szajdzińska-Piętek E.

Zeszyty Naukowe. Chemia / Politechnika Łódzka

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2015

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tom Z. 51

1-51

PL

Zawiera wyłącznie streszczenia w j. pol. (czasem wraz z bibliografiami załącznikowymi) z: PoWieFoNa 2015. Szóste Warsztaty Nanotechnologiczne.

2

Reliability wave in light of the nano development

100%

Way K.

Journal of Polish Safety and Reliability Association

|

2007

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tom Vol. 2

251--253

EN

This talk is based on the Editorial of IEEE Transactions on Reliability, December, 2006 and discusses a framework for applying reliability principles and practices to the emerging nano technology fields.

3

Nanotechnologia w powłokach

100%

Bonora P. L. , Lekka M. , Creazzi L.

Ochrona przed Korozją

|

2006

|

tom nr 4

130-131

PL

Materiały w skali nano mają inne właściwości od wyjściowego materiału i od proszków rozdrobnionych w skali mikro. Ich duża powierzchnia zmienia ich chemiczne i fizyczne właściwości pozwalając na tworzenie nowych materiałów o lepszych właściwościach optycznych, termicznych, mechanicznych, chemicznych i elektrycznych. Pokazano dwa przykłady powłok z nanocząsteczkami: powłokę metalową z wzmocnieniem ceramicznymi nanocząsteczkami, charakteryzującą się wysoką odpornością na zużycie i korozję oraz fotokatalityczną powłokę na konstrukcje. W szczególności omówiono specyfikę produkcji oraz charakterystykę ceramicznych nanoproszków i ich właściwości w powłoce.

EN

Nanoscaled materials characteristics differ from bulk materials and from micro sized powders. The higher surface area affect their chemical and physical properties, allowing the design of new materials with improved optical, thermal, mechanical, chemical, electrical performances. In this paper, two examples of nanocomposite coatings are described: (i) metallic coatings with ceramic nano- reinforcements, having high resistance both to wear and corrosion, and (ii) photocatalytic coatings for constructions. In particular, the peculiarities in the production and characterization of ceramic nano powders and the properties of the coatings are presented.

4

Model nanosystemu informatycznego wzorowanego na systemach biologicznych

80%

Nowak S.

Studia Informatica

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2003

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tom Vol. 24, nr 2A

97-108

PL

Tworząc podstawy systemu nanoinformatycznego można skorzystać z rozwiązań, jakie wypracowały nanosystemy biologiczne. Pierwszym krokiem może być zidentyfikowanie i opisanie z punktu widzenia informatyki tych procesów biologicznych, które dotyczą przetwarzania informacji: od programu DNA do funkcjonowania całego organizmu. Na tej podstawie można stworzyć model systemu. Model takiego systemu jest zbliżony do modelu obiektywnego oraz oparty jest na koncepcji sterowania przepływem danych. W artykule podjęto próbę opisania takich biologicznych procesów informatycznych i stworzenia modelu systemu nanoinformatycznego.

EN

In order to create a working nanoinformatics system one can as samples existing biological nanosystems. The first step is the identification and description of those biological processes which concern the data processing from the informatics point of view: starting from a DNA program, finishing with a function of the whole organism. On this basis one can create the model of system. Such a model is similar to the object programming model. The model is also based on the data flow system conception. In the article the problem of biological informatics processes and the development of the nanoinformatics systems' model are described.

5

Nanotechnology: legal and ethical issues

80%

Baran A.

Ekonomia i Zarzadzanie

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2016

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tom 8

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nr 1

47-54

EN

Nanotechnology is a very vast field which includes a range of technologies at the nano scale, such as pharmaceuticals, biotechnology, genomics, neuroscience, robotics and information technologies. Nanotechnology is the latest technological innovation in global debates on risk regulation and international cooperation. Regulatory bodies have started dealing with the potential risks posed by nanoparticles. Since 2004 the UE has been developing a regulatory policy to tighten control and to improve regulatory adequacy and knowledge of nanotechnology risks. Currently, specific provisions on nanomaterials have been introduced for biocides, cosmetics, food additives, food labelling and materials in contact with foodstuff. The statement that nanotechnologies do inevitably imply ethical questions. The main problems are public trust, potential risks, issues of environmental impact, transparency of information, responsible nanosciences and nanotechnologies research. The aim of this article is to analysis the main problems regulating nanotechnology and some aspects of ethics.

6

Nanotechnology in oncology - current state of knowledge

80%

Laskowska D. , Ziółkowska E. , Mitura K.

Engineering of Biomaterials

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2019

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tom Vol. 22, no. 152

2--9

EN

Nanotechnology is an interdisciplinary area of science devoted to the production and testing of nanostructures - defined as forms of the matter organizations the size of which does not exceed 100 nm. It is a quickly developing area of science with many applications in different areas of life, for example in engineering, computing, medicine, pharmacy, andagriculture. One of the problems of contemporary oncology is the low specificity of applied therapies. Most currently used chemiopharmaceuticals have systemic effects which not only affect cancer cells but alsohealthy tissues. Complications after chemotherapy observed in many patients are bone marrow deficiency(neutropenin, thrombocytopenia, anemia), damageto the nervous system (neurotoxicity), myocardium(cardiotoxicity) and pulmonary parenchyma. Similarly, in radiotherapy, ionizing radiation destroys the healthy tissues in the irradiation field. The side effects of radiation therapy may include fatigue, skin reactions, and impairment of tissue and organ functions. According to studies, nanostructures are an opportunity to overcome these limitations. The most popular nanostructures used in medicine are liposomes, silver and gold nanoparticles, magnetic nanoparticles, carbonnanotubes, and dendrimers. The purpose of this article is to present the current state of knowledge on the use of available nanotechnology solutions in pharmacology and cancer treatment.

7

Binding of Industrial Deposits of Heavy Metals and Arsenic in the Soil by 3-Aminopropyltrimethoxysilane

80%

Grzesiak P. , Łukaszyk J. , Schroeder G. , Kurczewska J.

Polish Journal of Chemical Technology

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2014

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tom Vol. 16, nr 2

12--15

EN

The results of the research studies concerning binding of heavy metals and arsenic (HM+As), occurring in soils affected by emissions from Głogów Copper Smelter and Refinery, by silane nanomaterial have been described. The content of heavy metals and arsenic was determined by AAS and the effectiveness of heavy metals and arsenic binding by 3-Aminopropyltrimethoxysilane was examined. The total leaching level of impurities in those fractions was 73.26% Cu, 74.7% – Pb, 79.5% Zn, 65.81% – Cd and 55.55% As. The studies demonstrated that the total binding of heavy metals and arsenic with nanomaterial in all fractions was about as follows: 20.5% Cu, 9.5% Pb, 7.1% Zn, 25.3% Cd and 10.89% As. The results presented how the safety of food can be cultivated around industrial area, as the currently used soil stabilization technique of HM by soil pH does not guarantee their stable blocking in a sorptive complex.

8

Nanotechnology application to automotive coating manufacturing

80%

Kotnarowska D. , Wojtyniak M.

Journal of KONES

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2007

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tom Vol. 14, No. 2

253-258

EN

The last decade showed very fast growing of worldwide interest in nanotechnologies and nanomaterials. These trends can also be observed in high performance automotive coating formulations. Coating industry was one of the first branches that applied nanoscience and nanotechnology. Application of nanotechnology in organic coatings consists, mainly, in coating formulation using nanomaterials. Such obtained "nanocomposite coatings" consist of polymer matrix containing nano-scale particles. At this scale, properties of materials can be very different from those at a larger scale. Coating properties can be greatly affected by the size of filler particles; the smaller the filler particles the larger the effect. The effect of nanofillers depends on many factors, among others: chemical nature of nanofillers, their concentration and level of dispersion in the coating, as well as interaction between filler particles and organic matrix. Protective and decorative automotive coatings are exposed to the action of such factors as: ultraviolet radiation, erosive particles, humidity and heat. The presence of nanofillers allows increasing coatings resistance to these factors. Resistance to erosive wear and scratch are very important features of automotive clearcoats. Pigments which particles are smaller than the wavelength of visible light may be applied in formulations of such coatings to increase their phisico-chemical properties. Application of nanofillers to clearcoats requires complete dispersion of their particles in polymer matrix. Complete dispersion of nanofillers in polymer matrix enables preparation of high performance clearcoats showing high transparency and resistance to erosive wear and scratch. Alumina and silica nanoparticles are very often used in such applications. The paper presents literature review on nanofiller application in automotive coating formulations.

9

The Effect of Nanomaterial Type on Water Disinfection Using Data Mining

80%

Hamdan M. , Khalil R. H. , Abdelhafez E. , Ajib S.

Journal of Ecological Engineering

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2023

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tom Vol. 24, nr 4

244--251

EN

Multiple linear regression and artificial neural network (ANN) models were utilized in this study to assess the type influence of nanomaterials on polluted water disinfection. This was accomplished by estimating E. coli (E.C) and the total coliform (TC) concentrations in contaminated water while nanoparticles were added at various concentrations as input variables, together with water temperature, PH, and turbidity. To achieve this objective, two approaches were implemented: data mining with two types of artificial neural networks (MLP and RBF), and multiple linear regression models (MLR). The simulation was conducted using SPSS software. Data mining was revealed after the estimated findings were checked against the measured data. It was found that MLP was the most promising model in the prediction of the TC and E.C concentration, s followed by the RBF and MLR models, respectively.

10

Nanomateriały: wytwarzanie, właściwości i zastosowania

80%

Markowski L.

Elektronika : konstrukcje, technologie, zastosowania

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2009

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tom Vol. 50, nr 1

81-84

PL

Na przykładach jedno-, dwu- lub trzywymiarowych nanoobiektów - elementów składających się z pojedynczych atomów, molekuł lub obiektów nieprzekraczających rozmiarów 100 nm - opisane zostaną sposoby wytwarzania oraz własności mechaniczne, elektryczne lub optyczne nanomateriałów. Przedstawione zostaną również niektóre możliwości wykorzystania nanoobiektów do tworzenia fizycznych, chemicznych czy biologicznych układów o konkretnych, praktycznych zastosowaniach w takich dziedzinach, jak: energetyka, nanoelektronika, medycyna, ochrona środowiska czy biotechnologia.

EN

In this paper examples of the formation methods of one-, two- and three-dimensional nanoobjects - elements which consist of single atoms, molecules and other objects with dimensions smaller than 100 nm - and their mechanical, electrical and optical properties will be described. Furthermore, also some possibilities of nanoobjects utilization in creation of physical, chemical and biological systems with real, practical applications in such domains as: energetics, nanoelectronics, medicine, environment protection or biotechnology.

11

Possibilities of application of nanostructural materials in exhaust gas aftertreatment

80%

Merkisz J. , Fuć P.

Silniki Spalinowe

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2009

|

tom R. 48, SC1

109--114

EN

There is no doubt that the share of newly registered vehicles fitted with combustion engines will grow, particularly those fitted with diesel engines for their much lower fuel consumption. Due to the specificity of the diesel engines and the issues related to NOx and PM emission, continuous research is being done in order to reduce those emissions. Investigations continue to implement new technologies such as the addition of urea into the exhaust gases to generate a NOx reducing atmosphere or to reduce the maximum temperature of PM ignition. Another rapidly developing branch is nanotechnology and thermoelectric materials. The article presents the possibility of application of nanostructural materials in order to increase the environment friendliness of certain vehicle subassemblies.

PL

Nie ulega wątpliwości, że silniki spalinowe a szczególnie silniki o zapłonie samoczynnym, z uwagi na dużo mniejsze zużycie paliwa w stosunku do silników o zapłonie iskrowym, będą zajmowały coraz większy udział w rynku samochodów nowosprzedawanych jak i będących w eksploatacji. Ze względu na specyfikę pracy tych silników i problem z emisją tlenków azotu i cząstek stałych w sposób ciągły prowadzi się badania mające na celu ograniczenie tej emisji. Prowadzi się badania nad wprowadzeniem nowych technologii, jaką na przykład jest dodawanie roztworu amoniaku do gazów wylotowych w celu stworzenia atmosfery redukującej w układzie wylotowym czy też prowadzenie do zmniejszenia maksymalnej temperatury zapłonu cząstek stałych. Inną dynamicznie rozwijająca się gałęzią nowych rozwiązań jest zastosowanie nanotechnologii i materiałów termoelektrycznych. W artykule przedstawiono możliwości zastosowania materiałów otrzymanych metodami pozwalającymi na uzyskanie nonostruktur w celu zwiększenia ekologiczności wybranych podzespołów pojazdów.

12

Chemistry for nanotechnology

80%

Schroeder G. , Kurczewska J.

Polish Journal of Chemical Technology

|

2014

|

tom Vol. 16, nr 1

70--74

EN

In recent years, the processing order during the synthesis of new chemical compounds has been redefined. Until now a chemist considered primarily receiving a new compound and only then searched for its potential application. The new philosophy of proceedings forces chemists to answer the question: what physical and chemical properties a new chemical compound must have, and what should be structured. After that it has to be planned how to get the compound including the defined budget. The compounds obtained by conventional chemical synthesis are then used to create new functional materials having the properties as scheduled. The paper presents the way of the proceedings from a molecular receptor to a new nanomaterial containing this receptor, so in other words from individual molecules to new material with specific and previously planned properties.

13

Introduction to Nanotechnology for Acoustics (review article)

80%

Surowiak Z.

Molecular and Quantum Acoustics

|

2001

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tom Vol. 22

239-260

EN

Nanostructure science and technology is clearly a very broad and interdisciplinary area of research and development activity worldwide. It has been growing exlosively in the past few ears, since the realisation that creating new materials and devices from nanoscale building blocks could access nwe and improved properties nad functionalities. While many aspects of the field exicted well before nanostructure science and technology became a coherent field of endeavor through the confluence of three crucial technological treams:;(1) new and improved control of the size and manipulation of nanoscale building blocks; (2) new and impoved characterization (e.g., spatial resolution, chemical sensitivity) of materials at the nanoscale; (3) new and improved understanding of the relationships between nanostructure and properties and how these can be engineered.

14

Bezpieczeństwo i higiena pracy a rozwój nanotechnologii

80%

Zapór L.

Bezpieczeństwo Pracy : nauka i praktyka

|

2012

|

tom nr 1

4-7

PL

W artykule przedstawiono problemy i niezbędne działania, jakie należy podjąć w dziedzinie bezpieczeństwa i higieny pracy z produktami nanotechnologii. Wydaje się, że obecnie największe ryzyko związane z nanotechnologią polega na braku jej kontroli, tj. niewystarczających środkach do monitorowania środowiska pracy i środowiska naturalnego oraz braku przepisów prawnych regulujących tę kontrolę.

EN

This article presents the problems and necessary actions that should be taken in the field of health and safety at work in relation to nanotechnology products At present, it seems that lack of control is the greatest risk associated with nanotechnology. It consists in insufficient methods of monitoring the working environment and the natural environment and no legal provisions regulating this control.

15

Prawne aspekty nanotechnologii

80%

Jurewicz M.

Ekonomia i Zarządzanie

|

2013

|

tom Vol. 5, no. 2

106--126

PL

W artykule scharakteryzowano i skomentowano regulacje prawne w nanotechnologii i formułowanie reguł przewodnich tej kategorii systemu prawa. Przepisy prawa Unii Europejskiej w odniesieniu do nanomateriałów są usystematyzowane według: produktów, chemikaliów, ochrony pracowników i ochrony środowiska. Prawodawstwo dotyczące wprost nanotechnologii wprowadzono, jak dotąd, dla produktów kosmetycznych, produktów biobójczych i żywności. W innych dziedzinach, w których wykorzystuje się nanomateriały, mają zastosowanie przepisy dla ich odpowiedników makro.

EN

The aim of the study is characterization and commenting on regulations in nanotechnology, formulation of the guiding rules of the legal system in this category. The provisions of the European Union law in relation to nanomaterials are arranged according to: products, chemicals, protection of workers and environmental protection. The legislation directly referred to nanotechnology has been introduced so far for cosmetics, biocides and food. In other areas where nanomaterials are profited the provisions for their equivalent macro are used.

16

Investigating the antibacterial potential of agarose nanoparticles synthesized by nanoprecipitation technology

80%

Satar R. , Lizhar S. A. , Rasool M. , Pushparaj P. N. , Ansari S. A.

Polish Journal of Chemical Technology

|

2016

|

tom Vol. 18, nr 2

9--12

EN

Herein, an effort was made to investigate the antibacterial potential of agarose nanoparticles (ANPs) and poly(quaternary ammonium) modifi ed ANPs (mANPs) against Escherichia coli (gram-negative bacterium) and Staphylococcus aureus (gram positive bacterium) in liquid systems as well as on agar plates. ANPs were synthesized by nanoprecipitation technology and characterized by XRD, TEM, TGA, DTA and DLS. The particle size estimated was 30 nm while atomic force microscopy was used to observe the interaction of ligand on ANPs. Antimicrobial characterization was monitored by colony forming units (CFU) as a function of ANPs concentration on agar plates. It was observed that ANPs showed 15 x 109/ml CFU after 24 hours of incubation at 20 mM ANPs concentration while the modified ANPs exhibited 21 x 109/ml CFU under similar incubation conditions. Moreover, zone of inhibition (ZOI) was 2.9 and 3.8 cm, respectively for E. coli by ANPs at 0.2 and 0.4 mM, respectively while it was 3.2 and 3.8 cm respectively by modified ANPs under similar conditions. Similarly, ZOI for S. aureus by ANPs at 0.2 and 0.4 mM was observed at 3.1 and 4.0 cm, respectively, while these values were 3.5 and 4.1 cm, respectively for modified ANPs under similar incubation conditions.

17

Nanomateriały - nowe możliwości, nowe zagrożenia

80%

Makles Z.

Bezpieczeństwo Pracy : nauka i praktyka

|

2005

|

tom nr 2

2-4

PL

Nanotechnologia - interdyscyplinarna dziedzina wiedzy jest najbardziej dynamicznie rozwijającą się technologią, która pozwala sięgać po same elementarne cząsteczki materii - atomy i budować z nich urządzenia, maszyny i różne materiały. Niedawno odkryte nanocząsteczki materii zbudowanej z węgla - fulereny i nanorurki oraz podobne do nich wielkością cząsteczki metali i ich tlenków zaczynają odgrywać w gospodarce ogromną rolę, która w perspektywie czasu może doprowadzić do poważnych zmian w życiu człowieka. W artykule zebrano wybrane informacje o nowych nanomateriałach, ich wykorzystaniu oraz zagrożeniach, które ze sobą niosą w tym zakresie.

EN

Nanotechnology – an interdisciplinary field of knowledge – is still the most dynamically developing technology. It makes it possible to reach for the most elementary particles of matter – atoms – and use them to build devices, machines and different materials. The recently discovered nanoparticles of matter made from carbon – the fulerens nad nanotubes – and similar to them in size particles of metals and their oxides, have begun to play an important role in the economy, which in time can bring about serious changes to human life. This article presents selected information on new nanomaterials, their use and the hazards they carry.

18

Recycling and waste management envisage nanotechnology

80%

Foltynowicz Z.

Prace Naukowe Instytutu Inżynierii Ochrony Środowiska Politechniki Wrocławskiej. Konferencje

|

2006

|

tom Vol. 81, nr 12

281-286

EN

Nanotechnology comprises any technological developments on the nanometer scale, usually 0.1 to 100 nm. (One nanometer equals one thousandth of a micrometer or one millionth of a millimeter.) The term has sometimes been applied to any microscopic technology. The term nanotechnology is often used interchangeably with molecular nanotechnology (also known as "MNT"), a hypothetical, advanced form of nanotechnology believed to be achievable at some point in the future. Molecular nanotechnology includes the concept of mechanosynthesis. The term nanoscience is used to describe the interdisciplinary field of science devoted to the advancement of nanotechnology. Nanotechnology has variously been described as a transformative technology, an enabling technology or the next technological revolution. Even accounting for a certain level of hypothesis, a heady combination of high level investments, rapid scientific progress and exponentially increasing commercialization point toward nanotechnology having a significant impact on society over coming decades. However, enthusiasm over the rate of progress is being tempered increasingly over possible downsides of the technology, including unforeseen or poorly managed risk to anH prtvironmgnt fll. Rejyjmdjgerceived adverse consequence in areas

PL

W pracy przedstawiono główne płaszczyzny zainteresowania nanotechnologii. Wyjaśniono czym są nanomateriały i jaki mogą mieć wpływ na środowisko. Zwrócono uwagę na światowe prace nad kierunkami standaryzacji. Pracami tymi kieruje "International Organization for Standarization" (ISO) we współpracy z krajowymi komitetami i instytucjami.

19

Selected Possible Applications Of Nanometerials In Automotive Industry

80%

Babiak M. , Ciałkowski M. , Giersig M. , Iskra A. , Kałużny J.

Journal of Polish CIMAC

|

2009

|

tom Vol. 4, no 2

15-20

EN

The nanotubes and nanotechnologies are relatively new areas of science and engineering practice. This article should be concerned as a review of the selected nanotechnology applications in the automotive industry. The applications were divided into groups in respect of implementation advance level. Special attention was devoted to innovative nanomaterials application in areas where taking advantage of their unique features is possible. Authors presented the catalytic converter for combustion engine exhaust system application in which the nanotubes were used in order to increase the contact area of exhaust gases with catalytic layer. In the paper preliminary results of proposed catalytic reactor conversion ratio were presented and future directions of development were discussed.

20

Chemistry for nanotechnology

80%

Schroeder G. , Kurczewska J.

Polish Journal of Chemical Technology

|

2014

|

tom 16

|

nr 1

70-74

EN

In recent years, the processing order during the synthesis of new chemical compounds has been redefined. Until now a chemist considered primarily receiving a new compound and only then searched for its potential application. The new philosophy of proceedings forces chemists to answer the question: what physical and chemical properties a new chemical compound must have, and what should be structured. After that it has to be planned how to get the compound including the defined budget. The compounds obtained by conventional chemical synthesis are then used to create new functional materials having the properties as scheduled. The paper presents the way of the proceedings from a molecular receptor to a new nanomaterial containing this receptor, so in other words from individual molecules to new material with specific and previously planned properties.