97 research outputs found
The basis of physical chemistry, properties of two-dimensional solids
Advanced surfaces provide opportunities to develop new surface materials and surface technology. The recent development of hyperfine surface structure - clean surface, thin films and nanophase structures β as well as sophisticated analitical tools, opened up atomic/molecular studies of surface phenomena and new application.Physical chemistry 2004 : 7th international conference on fundamental and applied aspects of physical chemistry; Belgrade (Serbia); 21-23 September 200
Investigation of Cl- and SO42- anion absorption in natural soils
In this paper, the results of vertical chloride and sulphate anions migration in soil are presented. The soil was contaminated with NaCl and CuSO4. Anions migartion were monitored during one hydrological year (425 days). First sample was taken after 150 days and next following sample was taken after 50 days. Before the profile contamination physical and chemical analisys of soil has been done. The obtained results shows that chloride concentration in soil was in the range from 0,67 mgkg-1 up to 11,92 mgkg-1, while sulphate concentration was in the range from 0,65 mgkg-1 up to 9,79 mgkg-1.I Serbian Ceramic Society Conference : 1CSCS-2011 : program and the book of abstracts; March 17-18, 2011; Belgrad
Posledice sniΕΎenih standarda u procesu ozakonjenja stambenih zgrada na ΕΎivotnu sredinu i kvalitet ΕΎivota korisnika
The economic power of the population that migrates is below the level that allows the purchase of apartments in towns at market price. Cheaper illegally built residential buildings are most common form of resolving housing issue for this group of people, as evidenced by the fact that illegally built settlements in Belgrade cover as much as 40% of the area determined according to the General urban plan for housing. The Law on the legalization of illegally built facilities provides for the reduced criteria regarding the fulfilment of standards in the field of planning and spatial design. In this sense, it is possible to legalize the residential buildings that are not fully compliant with the Law on planning and construction, which envisages compliance with European standards, energy efficiency, accessibility, adequate quality of construction products and compliance with rules of construction. The above is not in line with the strategies for raising the level of sustainability of construction, which concern reduction of negative environmental impacts, with simultaneous increase of quality of life in the built environment. Having in mind the above, this paper analyzes possible deviation from standards foreseen by the Law on planning and construction in the process of legalization, as well as the consequences of applying this principle on the environment and quality of life of users of residential space. The paper points out the necessity of improvement of legal acts, that is, the process of legalization, which would also take into account the possibility of additional requirements for meeting the standards, especially regarding the aspects that can be improved with additional investments
Morphological and structural properties of silver and gold nanoparticles obtained by ion implantation in high density polyethylene
Π£ ΠΎΠ²ΠΎΡ Π΄ΠΎΠΊΡΠΎΡΡΠΊΠΎΡ Π΄ΠΈΡΠ΅ΡΡΠ°ΡΠΈΡΠΈ ΡΡ ΠΈΡΠΏΠΈΡΠ°Π½Π° ΠΌΠΎΡΡΠΎΠ»ΠΎΡΠΊΠ° ΠΈ ΡΡΡΡΠΊΡΡΡΠ½Π°ΡΠ²ΠΎΡΡΡΠ²Π° Π½Π°Π½ΠΎΡΠ΅ΡΡΠΈΡΠ° ΡΡΠ΅Π±ΡΠ° ΠΈ Π·Π»Π°ΡΠ° ΠΊΠΎΡΠ΅ ΡΡ Π΄ΠΎΠ±ΠΈΡΠ΅Π½Π΅ ΡΠΎΠ½ΡΠΊΠΎΠΌ ΠΈΠΌΠΏΠ»Π°Π½ΡΠ°ΡΠΈΡΠΎΠΌ ΡΠΏΠΎΠ»ΠΈΠ΅ΡΠΈΠ»Π΅Π½ Π²Π΅Π»ΠΈΠΊΠ΅ Π³ΡΡΡΠΈΠ½Π΅ (HDPE). ΠΠΎΡΠ΅Π΄ ΠΎΡΠ½ΠΎΠ²Π½ΠΈΡ
ΡΠ²ΠΎΡΡΡΠ°Π²Π° ΠΈΡΠΏΠΈΡΠ°Π½Π΅ ΡΡ ΠΈΠΏΠΎΡΠ΅Π½ΡΠΈΡΠ°Π»Π½Π΅ ΠΏΡΠΈΠΌΠ΅Π½Π΅ ΠΎΠ²ΠΈΡ
ΠΌΠ°ΡΠ΅ΡΠΈΡΠ°Π»Π° ΠΊΠ°ΠΎ ΠΈ ΡΠΈΡ
ΠΎΠ²ΠΎ ΠΏΠΎΠ½Π°ΡΠ°ΡΠ΅ Ρ ΡΠ΅Π°Π»Π½ΠΈΠΌΡΡΠ»ΠΎΠ²ΠΈΠΌΠ°. ΠΠΎΠ½ΠΈ ΡΡΠ΅Π±ΡΠ° ΠΈ Π·Π»Π°ΡΠ° ΠΈΠΌΠΏΠ»Π°Π½ΡΠΈΡΠ°Π½ΠΈ ΡΡ Π΄ΠΎΠ·Π°ΠΌΠ° ΠΎΠ΄ 1.1015, 5.1015 ΠΈ1.1016 ΡΠΎΠ½Π°/cm2 ΠΈ Π΅Π½Π΅ΡΠ³ΠΈΡΠ°ΠΌΠ° ΠΎΠ΄ 50, 100, 150 ΠΈ 200 keV. ΠΠ·Π±ΠΎΡ ΠΎΠ²ΠΈΡ
Π΄ΠΎΠ·Π° ΠΈΠ΅Π½Π΅ΡΠ³ΠΈΡΠ° ΡΡ ΠΏΠΎΡΠ»Π΅Π΄ΠΈΡΠ° Π΄Π΅ΡΠ°ΡΠ½ΠΈΡ
ΠΈΡΡΡΠ°ΠΆΠΈΠ²Π°ΡΠ° ΠΎ ΠΌΠΎΠ³ΡΡΠ½ΠΎΡΡΠΈΠΌΠ° ΠΏΠΎΡΡΠΈΠ·Π°ΡΠ°ΠΎΠΏΡΠΈΠΌΠ°Π»Π½ΠΈΡ
Π½Π°Π½ΠΎΡΡΡΡΠΊΡΡΡΠ½ΠΈΡ
ΡΠ²ΠΎΡΡΡΠ°Π²Π° ΡΠΈΡΡΠ΅ΠΌΠ° ΠΌΠ΅ΡΠ°Π» β ΠΏΠΎΠ»ΠΈΠΌΠ΅Ρ.ΠΡΠ΅Π»ΠΈΠΌΠΈΠ½Π°ΡΠ½ΠΈ ΠΏΡΠΎΡΠ°ΡΡΠ½ΠΈ ΠΏΡΠΎΡΠ΅ΠΊΡΠΎΠ²Π°Π½ΠΈΡ
Π΄ΠΎΠΌΠ΅ΡΠ°, ΡΠ°ΡΠΏΠΎΠ΄Π΅Π»Π΅ ΡΠΎΠ½Π°,Π΅Π½Π΅ΡΠ³Π΅ΡΡΠΊΠΈΡ
Π³ΡΠ±ΠΈΡΠ°ΠΊΠ° ΠΈ ΠΏΠΎΡΠ΅Π½ΡΠΈΡΠ°Π»Π½ΠΈΡ
ΡΠ°Π΄ΠΈΡΠ°ΡΠΈΠΎΠ½ΠΈΡ
ΠΎΡΡΠ΅ΡΠ΅ΡΠ° ΠΈΠ·Π²ΡΡΠ΅Π½ΠΈ ΡΡΠΏΡΠΎΠ³ΡΠ°ΠΌΡΠΊΠΈΠΌ ΠΏΠ°ΠΊΠ΅ΡΠΎΠΌ SRIM (Stopping Range of Ions in Matters). ΠΠΌΠΏΠ»Π°Π½ΡΠΈΡΠ°Π½Π΅ΡΠΎΠ½ΡΠΊΠ΅ Π²ΡΡΡΠ΅ Ρ ΠΏΠΎΠ»ΠΈΠΌΠ΅ΡΠ½ΠΎΡ ΠΎΡΠ½ΠΎΠ²ΠΈ ΡΡ ΠΏΠΎΡΠ²ΡΡΠ΅Π½Π΅ ΠΌΠ΅ΡΠΎΠ΄Π°ΠΌΠ° Π Π΅Π½Π΄Π³Π΅Π½ΡΠΊΠ΅Π΄ΠΈΡΡΠ°ΠΊΡΠΈΡΠ΅ (XRD), ΠΠ°ΡΠ΅Π½Π΅ ΡΠΏΠ΅ΠΊΡΡΠΎΠΌΠ΅ΡΡΠΈΡΠ΅ (ICP β MS), Π Π΅Π½Π΄Π³Π΅Π½ΡΠΊΠ΅ΡΠΎΡΠΎΠ΅Π»Π΅ΠΊΡΡΠΎΠ½ΡΠΊΠ΅ ΡΠΏΠ΅ΠΊΡΡΠΎΡΠΊΠΎΠΏΠΈΡΠ΅ (XPS) ΠΈ ΡΡΠ°Π½ΡΠΌΠΈΡΠΈΠΎΠ½Π΅ ΠΈ ΡΠΊΠ°Π½ΠΈΡΠ°ΡΡΡΠ΅Π΅Π»Π΅ΠΊΡΡΠΎΠ½ΡΠΊΠ΅ ΠΌΠΈΠΊΡΠΎΡΠΊΠΎΠΏΠΈΡΠ΅ (TEM, SEM). ΠΠΏΡΠΈΡΠΊΠ° ΡΠ²ΠΎΡΡΡΠ²Π° ΠΈ ΡΡΠ΅ΠΏΠ΅Π½ Π°ΠΊΡΠΈΠ²Π°ΡΠΈΡΠ΅ΠΏΠΎΠ»ΠΈΠΌΠ΅ΡΠ° Π½Π°Π½ΠΎΡΠ΅ΡΡΠΈΡΠ°ΠΌΠ° ΡΡΠ΅Π±ΡΠ° ΠΈ Π·Π»Π°ΡΠ° ΠΈΡΠΏΠΈΡΠΈΠ²Π°Π½ΠΈ ΡΡ ΡΠΏΠ΅ΠΊΡΡΠΎΡΠΊΠΎΠΏΡΠΊΠΎΠΌΠ΅Π»ΠΈΠΏΡΠΎΠΌΠ΅ΡΡΠΈΡΠΎΠΌ (SE). Π£Π·ΠΎΡΡΠΈ HDPE ΡΠ° ΠΈΠ½ΠΊΠΎΡΠΏΠΎΡΠΈΡΠ°Π½ΠΈΠΌ Π½Π°Π½ΠΎΡΡΡΡΠΊΡΡΡΠ½ΠΈΠΌΡΠ΅ΡΡΠΈΡΠ°ΠΌΠ° Π΄Π°ΡΠ΅ ΡΡ ΠΊΠ°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΠ°Π½Π΅ ΡΠ»Π΅Π΄Π΅ΡΠΈΠΌ ΠΌΠ΅ΡΠΎΠ΄Π°ΠΌΠ°: ΠΠΈΠΊΡΠΎΡΠΊΠΎΠΏΠΈΡΠΎΠΌ Ρ ΠΏΠΎΡΡΠ°ΡΠΎΠΌΡΠΊΠΈΡ
ΡΠΈΠ»Π° (AFM), ΠΏΡΠΈΠΌΠ΅Π½ΠΎΠΌ ΡΠ°ΡΠΊΠ°ΡΡΠΎΠ³ (tapping mode) ΠΈ ΡΠ°Π·Π½ΠΎΠ³ Π½Π°ΡΠΈΠ½Π°ΡΠ½ΠΈΠΌΠ°ΡΠ° (phase mode) ΠΈΠ·Π²ΡΡΠ΅Π½Π΅ ΡΡ ΡΠΎΠΏΠΎΠ³ΡΠ°ΡΡΠΊΠ° ΠΈ ΡΠ°Π·Π½Π° Π°Π½Π°Π»ΠΈΠ·Π° ΠΏΡΠΎΠΌΠ΅Π½Π°Π½Π°ΡΡΠ°Π»ΠΈΡ
Π½Π° ΠΏΠΎΠ²ΡΡΠΈΠ½ΠΈ HDPE; ΠΡΠΎΠΌΠ΅Π½Π΅ Ρ ΡΡΡΡΠΊΡΡΡΠΈ ΠΏΠΎΠΏΡΠ΅ΡΠ½ΠΎΠ³ ΠΏΡΠ΅ΡΠ΅ΠΊΠ° ΠΊΠ°ΠΎ ΠΈΠ°Π½Π°Π»ΠΈΠ·Π΅ Π·ΠΎΠ½Π° ΡΠ°Π΄ΠΈΡΠ°ΡΠΈΠΎΠ½ΠΎΠ³ ΠΎΡΡΠ΅ΡΠ΅ΡΠ° ΠΏΡΠ°ΡΠ΅Π½Π΅ ΡΡ ΠΌΠΈΠΊΡΠΎΡΠΊΠΎΠΏΠΈΡΠΎΠΌ ΡΠ°ΠΏΡΠΎΠΌΠ΅Π½ΡΠΈΠ²ΠΎ - ΠΊΠΎΠ½ΡΡΠΎΠ»ΠΈΡΠ°Π½ΠΎΠΌ ΡΠΈΠ»ΠΎΠΌ (AFM β FMM) Π·Π°ΡΠ½ΠΎΠ²Π°Π½ΠΎΡ Π½Π°ΠΊΠΎΠ½ΡΡΠΎΠ»ΠΈΡΠ°Π½ΠΈΠΌ ΠΎΡΡΠΈΠ»Π°ΡΠΈΡΠ°ΠΌΠ° Π½Π° ΠΎΠ±Π»Π°ΡΡΠΈΠΌΠ° ΡΠ°Π·Π»ΠΈΡΠΈΡΠ΅ Π²ΠΈΡΠΊΠΎΠ·Π½ΠΎΡΡΠΈ ΡΠΌΠ°ΡΠ΅ΡΠΈΡΠ°Π»Ρ. ΠΠ½Π°Π»ΠΈΠ·ΠΎΠΌ ΡΡΠ½ΠΊΡΠΈΡΠ΅ ΡΠΏΠ΅ΠΊΡΡΠ° ΡΠ½Π°Π³Π΅ (PSD) ΠΈΡΠΏΠΈΡΠ°Π½Π΅ ΡΡ ΠΏΠΎΠ²ΡΡΠΈΠ½ΡΠΊΠ΅ ΠΏΠΎΡΠ°Π²Π΅ Π½Π°ΡΡΠ°Π»Π΅ ΡΠΎΠ½ΡΠΊΠΎΠΌ ΠΈΠΌΠΏΠ»Π°Π½ΡΠ°ΡΠΈΡΠΎΠΌ ΠΈ ΠΏΡΠ΅Π΄ΡΡΠ°Π²ΡΠ΅Π½ΠΈ ΡΡ ΠΎΡΠ½ΠΎΠ²Π½ΠΈ ΠΌΠ΅Ρ
Π°Π½ΠΈΠ·ΠΌΠΈΡΠ΅Π°ΠΊΡΠΈΡΠ° Π½Π° ΠΏΠΎΠ²ΡΡΠΈΠ½ΠΈ Π°Π½Π°Π»ΠΈΠ·ΠΎΠΌ Π½Π°Π³ΠΈΠ±Π° PSD ΡΡΠ½ΠΊΡΠΈΡΠ΅. ΠΠΎΠ΄Π°ΡΠ½Π΅ ΠΈΠ½ΡΠΎΡΠΌΠ°ΡΠΈΡΠ΅ ΠΎΠΏΠΎΠ²ΡΡΠΈΠ½ΡΠΊΠΈΠΌ ΡΠ²ΠΎΡΡΡΠ²ΠΈΠΌΠ° ΠΈ Π°Π΄Ρ
Π΅Π·ΠΈΠ²Π½ΠΎΡΡΠΈ ΠΏΠΎΠ²ΡΡΠΈΠ½Π° Π΄ΠΎΠ±ΠΈΡΠ΅Π½ΠΈΡ
ΡΠΎΠ½ΡΠΊΠΎΠΌΠΈΠΌΠΏΠ»Π°Π½ΡΠ°ΡΠΈΡΠΎΠΌ Π΄ΠΎΠ±ΠΈΡΠ΅Π½Π΅ ΡΡ ΠΌΠ΅ΡΠ΅ΡΠ΅ΠΌ ΠΊΠΎΠ½ΡΠ°ΠΊΡΠ½ΠΎΠ³ ΡΠ³Π»Π° ΠΈ ΠΈΠ·ΡΠ°ΡΡΠ½Π°Π²Π°ΡΠ΅ΠΌΠΏΠΎΠ²ΡΡΠΈΠ½ΡΠΊΠ΅ Π΅Π½Π΅ΡΠ³ΠΈΡΠ΅. Π Π°Π·Π»ΠΈΠΊΠ΅ Ρ Π΄ΠΎΠ·Π°ΠΌΠ° ΠΈΠΌΠΏΠ»Π°Π½ΡΠ°ΡΠΈΡΠ΅ ΠΊΠ°ΠΎ ΠΈ Π΅Π½Π΅ΡΠ³ΠΈΡΠ°ΠΌΠ°ΡΡΠ»ΠΎΠ²ΠΈΠ»Π΅ ΡΡ Π½Π°ΡΡΠ°Π½Π°ΠΊ ΠΏΠΎΠ²ΡΡΠΈΠ½Π° ΡΠ°Π·Π»ΠΈΡΠΈΡΠΈΡ
ΠΏΠΎΠ»Π°ΡΠ½ΠΎΡΡΠΈ ΠΈ Π°ΡΠΈΠ½ΠΈΡΠ΅ΡΠ°.ΠΡΠΎΠΌΠ΅Π½Π΅ Ρ Ρ
Π΅ΠΌΠΈΡΡΠΊΠΎΠΌ ΡΠ°ΡΡΠ°Π²Ρ ΠΏΠΎΠ²ΡΡΠΈΠ½Π΅ ΠΏΠΎΡΠ²ΡΡΠ΅Π½Π΅ ΡΡ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠΌΠΈΠ½ΡΡΠ°ΡΡΠ²Π΅Π½Π΅ ΡΠΏΠ΅ΠΊΡΡΠΎΡΠΊΠΎΠΏΠΈΡΠ΅ FTIR-ATR (FTIR - attenuated total reflectance), Π³Π΄Π΅ΡΠ΅ ΡΠΎΡΠ΅Π½ Π½Π°ΡΡΠ°Π½Π°ΠΊ Π½ΠΎΠ²ΠΈΡ
Ρ
Π΅ΠΌΠΈΡΡΠΊΠΈΡ
Π²Π΅Π·Π° ΡΡΠ»Π΅Π΄ ΡΠΎΠ½ΡΠΊΠ΅ ΠΈΠΌΠΏΠ»Π°Π½ΡΠ°ΡΠΈΡΠ΅.Π‘ΠΈΠΌΡΠ»Π°ΡΠΈΡΠ° ΡΡΠ»ΠΎΠ²Π° ΡΠ΅Π°Π»Π½Π΅ Π΅ΠΊΡΠΏΠ»ΠΎΠ°ΡΠ°ΡΠΈΡΠ΅ ΠΈΠ·Π²ΡΡΠ΅Π½Π° ΡΠ΅ Ρ ΠΎΠ·ΠΎΠ½ Π³Π΅Π½Π΅ΡΠ°ΡΠΎΡΡΡ ΡΠΎΠΊΡ ΠΎΠ΄ 2 ΡΠ°ΡΠ°. Π£Π·ΠΎΡΡΠΈ ΠΈΠΌΠΏΠ»Π°Π½ΡΠΈΡΠ°Π½ΠΈ ΡΠΎΠ½ΠΈΠΌΠ° Π·Π»Π°ΡΠ° ΡΠ°Π·Π»ΠΈΡΠΈΡΠΈΡ
Π΅Π½Π΅ΡΠ³ΠΈΡΠ°ΠΏΠΎΠΊΠ°Π·Π°Π»ΠΈ ΡΡ ΡΠ°Π·Π»ΠΈΡΠΈΡΡ ΠΎΡΠΏΠΎΡΠ½ΠΎΡΡ Π½Π° Π΄Π΅ΡΡΡΠ²ΠΎ ΠΎΠ·ΠΎΠ½Π°. ΠΠ°ΡΡΡΠ°Π±ΠΈΠ»Π½ΠΈΡΠΈ ΠΌΠ΅ΡΡ ΡΠΈΠΌΠ° ΡΠ΅ΡΠ·ΠΎΡΠ°ΠΊ ΠΈΠΌΠΏΠ»Π°Π½ΡΠΈΡΠ°Π½ ΡΠΎΠ½ΠΈΠΌΠ° Π·Π»Π°ΡΠ° Π΅Π½Π΅ΡΠ³ΠΈΡΠ΅ 150 keV. ΠΠ°Π½ΠΎΡΡΡΡΠΊΡΡΡΠ½ΠΈ ΡΠΈΡΡΠ΅ΠΌΠΈΠΌΠ΅ΡΠ°Π» ΠΏΠΎΠ»ΠΈΠΌΠ΅Ρ ΠΈΡΠΏΠΈΡΠ°Π½ΠΈ ΡΡ Π½Π° ΠΈΠ½Ρ
ΠΈΠ±ΠΈΡΠΈΡΡ Π½Π° Π΄Π²Π° Π½Π°ΡΡΠ΅ΡΡΠ° ΠΊΠ»ΠΈΠ½ΠΈΡΠΊΠ°ΠΌΠΈΠΊΡΠΎΠΎΡΠ³Π°Π½ΠΈΠ·ΠΌΠ° S. aureus ΠΈ E. coli. ΠΠ±ΠΎΠ³ ΡΠ²ΠΎΡΠ΅ ΠΏΠΎΡΠ΅Π½ΡΠΈΡΠ°Π»Π½Π΅ ΠΏΡΠΈΠΌΠ΅Π½Π΅ ΡΠ±ΠΈΠΎΠΌΠ΅Π΄ΠΈΡΠΈΠ½ΠΈ Π²Π΅ΠΎΠΌΠ° ΡΠ΅ Π²Π°ΠΆΠ½ΠΎ ΠΈΡΠΏΠΈΡΠ°ΡΠΈ ΠΏΠΎΠ½Π°ΡΠ°ΡΠ΅ ΠΎΠ²ΠΈΡ
ΡΠΈΡΡΠ΅ΠΌΠ° ΡΠΌΠΈΠΊΡΠΎΠ±ΠΈΠΎΠ»ΠΎΡΠΊΠΈ Π½Π΅ΠΏΠΎΠΆΠ΅ΡΠ½ΠΈΠΌ ΡΡΠ΅Π΄ΠΈΠ½Π°ΠΌΠ°. ΠΡΡΡΠ°ΠΆΠΈΠ²Π°ΡΠ° ΡΡ ΠΏΠΎΠΊΠ°Π·Π°Π»Π° Π΄Π° ΡΡ ΡΠΎΠ½ΠΈΡΡΠ΅Π±ΡΠ° ΠΈ Π·Π»Π°ΡΠ° Π΄ΠΎΠ±ΡΠΈ ΠΈΠ½Ρ
ΠΈΠ±ΠΈΡΠΎΡΠΈ Ρ ΡΠ»ΡΡΠ°ΡΡ S. aureus Π΄ΠΎΠΊ ΡΠ΅ Π·Π° ΠΈΠ½Ρ
ΠΈΠ±ΠΈΡΠΈΡΡ E. coliΠΏΠΎΠ»ΠΈΠΌΠ΅ΡΠ½ΠΈ ΠΌΠ°ΡΠ΅ΡΠΈΡΠ°Π» ΠΏΠΎΡΡΠ΅Π±Π½ΠΎ Π΄ΠΎΠ΄Π°ΡΠ½ΠΎ ΠΎΠΏΠ»Π΅ΠΌΠ΅Π½ΠΈΡΠΈ Π½Π΅ΠΊΠΈΠΌ Π°Π½ΡΠΈΠ±ΠΈΠΎΡΠΈΡΠΈΠΌΠ° ΠΈΠ»ΠΈΠ±ΠΈΠΎΡΠΈΠ΄ΠΈΠΌΠ°.In this doctoral dissertation the morphological and structural properties ofsilver and gold nanoparticles, obtained by ion implantation in high densitypolyethylene (HDPE) have been studied. In addition to the basic properties, potentialapplications of these materials and their behavior were also investigated in realconditions. Silver and gold ions have been implanted with doses of 1.1015, 5.1015 and1.1016 ions/cm2 and energies of 50, 100, 150 and 200 keV. The selection of thedoses and energies were the result of detailed research on the possibilities ofachieving optimal properties of nanostructured systems metal - polymer.Preliminary calculations of the projected range, distribution of ions, energyloss and potential radiation damage were performed using software package SRIM(Stopping Range of Ions in Matters). The presence of implanted ion species in thepolymer matrix was confirmed by X-ray diffraction (XRD), Mass spectrometry ICP βMS, X-ray photoelectron spectroscopy (XPS) and transmition and scanning electronmicroscopy (TEM, SEM). Optical properties and the degree of the polymer activationwith nanoparticles of silver and gold were performed using spectroscopicellipsometry (SE). Confirmed nanostructured particles incorporated in the polymermatrix are further characterized by the following methods: Atomic Force Microscopy(AFM), using the tapping mode and phase mode for topographic and phase analysisof the changes on the HDPE surface; Changes in the cross section as well as theanalysis of radiation damage zone were performed using Force ModulationMicroscopy (AFM β FMM), based on the controlled oscillations in areas with differentviscosities in the material. Power Spectral Density (PSD) was used for theinvestigation of the surface phenomena caused by ion implantation and presentedthe basic surface reactions mechanisms analysing the slope of PSD functions.Additional information on surface properties and surface adhesion obtained by ionimplantation were obtained using the Contact Angle Measurement (CAM) and calculating the free surface energy. Differences in the implantation doses andenergies have caused the formation of different surface polarity and affinity.Changes in the chemical composition of the surface were confirmed usinginfrared spectroscopy FTIR-ATR (FTIR - attenuated total reflectance), where newchemical bonds are obtained due to ion implantation.Simulation of the conditions of the real operation was performed in the ozonegenerator during the 2 hours. Samples implanted with gold ions of different energiesshowed different resistance to ozone. The most stable among them was the goldimplanted sample with the energy of 150 keV. Nanostructured metal β polymersystems were tested for inhibition of the two most common clinical microorganism S.aureus and E. coli. Because of their potential applications in biomedicine it is veryimportant to examine the behavior of these systems in microbiological undesirableareas. The obtained results have shown that silver and gold ions are good inhibitorsin the case of S. aureus, while for the inhibition of E. coli, polymeric material shouldbe further enhanced using certain antibiotics or biocides
Morphological and structural properties of silver and gold nanoparticles obtained by ion implantation in high density polyethylene
Π£ ΠΎΠ²ΠΎΡ Π΄ΠΎΠΊΡΠΎΡΡΠΊΠΎΡ Π΄ΠΈΡΠ΅ΡΡΠ°ΡΠΈΡΠΈ ΡΡ ΠΈΡΠΏΠΈΡΠ°Π½Π° ΠΌΠΎΡΡΠΎΠ»ΠΎΡΠΊΠ° ΠΈ ΡΡΡΡΠΊΡΡΡΠ½Π°
ΡΠ²ΠΎΡΡΡΠ²Π° Π½Π°Π½ΠΎΡΠ΅ΡΡΠΈΡΠ° ΡΡΠ΅Π±ΡΠ° ΠΈ Π·Π»Π°ΡΠ° ΠΊΠΎΡΠ΅ ΡΡ Π΄ΠΎΠ±ΠΈΡΠ΅Π½Π΅ ΡΠΎΠ½ΡΠΊΠΎΠΌ ΠΈΠΌΠΏΠ»Π°Π½ΡΠ°ΡΠΈΡΠΎΠΌ Ρ
ΠΏΠΎΠ»ΠΈΠ΅ΡΠΈΠ»Π΅Π½ Π²Π΅Π»ΠΈΠΊΠ΅ Π³ΡΡΡΠΈΠ½Π΅ (HDPE). ΠΠΎΡΠ΅Π΄ ΠΎΡΠ½ΠΎΠ²Π½ΠΈΡ
ΡΠ²ΠΎΡΡΡΠ°Π²Π° ΠΈΡΠΏΠΈΡΠ°Π½Π΅ ΡΡ ΠΈ
ΠΏΠΎΡΠ΅Π½ΡΠΈΡΠ°Π»Π½Π΅ ΠΏΡΠΈΠΌΠ΅Π½Π΅ ΠΎΠ²ΠΈΡ
ΠΌΠ°ΡΠ΅ΡΠΈΡΠ°Π»Π° ΠΊΠ°ΠΎ ΠΈ ΡΠΈΡ
ΠΎΠ²ΠΎ ΠΏΠΎΠ½Π°ΡΠ°ΡΠ΅ Ρ ΡΠ΅Π°Π»Π½ΠΈΠΌ
ΡΡΠ»ΠΎΠ²ΠΈΠΌΠ°. ΠΠΎΠ½ΠΈ ΡΡΠ΅Π±ΡΠ° ΠΈ Π·Π»Π°ΡΠ° ΠΈΠΌΠΏΠ»Π°Π½ΡΠΈΡΠ°Π½ΠΈ ΡΡ Π΄ΠΎΠ·Π°ΠΌΠ° ΠΎΠ΄ 1.1015, 5.1015 ΠΈ
1.1016 ΡΠΎΠ½Π°/cm2 ΠΈ Π΅Π½Π΅ΡΠ³ΠΈΡΠ°ΠΌΠ° ΠΎΠ΄ 50, 100, 150 ΠΈ 200 keV. ΠΠ·Π±ΠΎΡ ΠΎΠ²ΠΈΡ
Π΄ΠΎΠ·Π° ΠΈ
Π΅Π½Π΅ΡΠ³ΠΈΡΠ° ΡΡ ΠΏΠΎΡΠ»Π΅Π΄ΠΈΡΠ° Π΄Π΅ΡΠ°ΡΠ½ΠΈΡ
ΠΈΡΡΡΠ°ΠΆΠΈΠ²Π°ΡΠ° ΠΎ ΠΌΠΎΠ³ΡΡΠ½ΠΎΡΡΠΈΠΌΠ° ΠΏΠΎΡΡΠΈΠ·Π°ΡΠ°
ΠΎΠΏΡΠΈΠΌΠ°Π»Π½ΠΈΡ
Π½Π°Π½ΠΎΡΡΡΡΠΊΡΡΡΠ½ΠΈΡ
ΡΠ²ΠΎΡΡΡΠ°Π²Π° ΡΠΈΡΡΠ΅ΠΌΠ° ΠΌΠ΅ΡΠ°Π» β ΠΏΠΎΠ»ΠΈΠΌΠ΅Ρ.
ΠΡΠ΅Π»ΠΈΠΌΠΈΠ½Π°ΡΠ½ΠΈ ΠΏΡΠΎΡΠ°ΡΡΠ½ΠΈ ΠΏΡΠΎΡΠ΅ΠΊΡΠΎΠ²Π°Π½ΠΈΡ
Π΄ΠΎΠΌΠ΅ΡΠ°, ΡΠ°ΡΠΏΠΎΠ΄Π΅Π»Π΅ ΡΠΎΠ½Π°,
Π΅Π½Π΅ΡΠ³Π΅ΡΡΠΊΠΈΡ
Π³ΡΠ±ΠΈΡΠ°ΠΊΠ° ΠΈ ΠΏΠΎΡΠ΅Π½ΡΠΈΡΠ°Π»Π½ΠΈΡ
ΡΠ°Π΄ΠΈΡΠ°ΡΠΈΠΎΠ½ΠΈΡ
ΠΎΡΡΠ΅ΡΠ΅ΡΠ° ΠΈΠ·Π²ΡΡΠ΅Π½ΠΈ ΡΡ
ΠΏΡΠΎΠ³ΡΠ°ΠΌΡΠΊΠΈΠΌ ΠΏΠ°ΠΊΠ΅ΡΠΎΠΌ SRIM (Stopping Range of Ions in Matters). ΠΠΌΠΏΠ»Π°Π½ΡΠΈΡΠ°Π½Π΅
ΡΠΎΠ½ΡΠΊΠ΅ Π²ΡΡΡΠ΅ Ρ ΠΏΠΎΠ»ΠΈΠΌΠ΅ΡΠ½ΠΎΡ ΠΎΡΠ½ΠΎΠ²ΠΈ ΡΡ ΠΏΠΎΡΠ²ΡΡΠ΅Π½Π΅ ΠΌΠ΅ΡΠΎΠ΄Π°ΠΌΠ° Π Π΅Π½Π΄Π³Π΅Π½ΡΠΊΠ΅
Π΄ΠΈΡΡΠ°ΠΊΡΠΈΡΠ΅ (XRD), ΠΠ°ΡΠ΅Π½Π΅ ΡΠΏΠ΅ΠΊΡΡΠΎΠΌΠ΅ΡΡΠΈΡΠ΅ (ICP β MS), Π Π΅Π½Π΄Π³Π΅Π½ΡΠΊΠ΅
ΡΠΎΡΠΎΠ΅Π»Π΅ΠΊΡΡΠΎΠ½ΡΠΊΠ΅ ΡΠΏΠ΅ΠΊΡΡΠΎΡΠΊΠΎΠΏΠΈΡΠ΅ (XPS) ΠΈ ΡΡΠ°Π½ΡΠΌΠΈΡΠΈΠΎΠ½Π΅ ΠΈ ΡΠΊΠ°Π½ΠΈΡΠ°ΡΡΡΠ΅
Π΅Π»Π΅ΠΊΡΡΠΎΠ½ΡΠΊΠ΅ ΠΌΠΈΠΊΡΠΎΡΠΊΠΎΠΏΠΈΡΠ΅ (TEM, SEM). ΠΠΏΡΠΈΡΠΊΠ° ΡΠ²ΠΎΡΡΡΠ²Π° ΠΈ ΡΡΠ΅ΠΏΠ΅Π½ Π°ΠΊΡΠΈΠ²Π°ΡΠΈΡΠ΅
ΠΏΠΎΠ»ΠΈΠΌΠ΅ΡΠ° Π½Π°Π½ΠΎΡΠ΅ΡΡΠΈΡΠ°ΠΌΠ° ΡΡΠ΅Π±ΡΠ° ΠΈ Π·Π»Π°ΡΠ° ΠΈΡΠΏΠΈΡΠΈΠ²Π°Π½ΠΈ ΡΡ ΡΠΏΠ΅ΠΊΡΡΠΎΡΠΊΠΎΠΏΡΠΊΠΎΠΌ
Π΅Π»ΠΈΠΏΡΠΎΠΌΠ΅ΡΡΠΈΡΠΎΠΌ (SE). Π£Π·ΠΎΡΡΠΈ HDPE ΡΠ° ΠΈΠ½ΠΊΠΎΡΠΏΠΎΡΠΈΡΠ°Π½ΠΈΠΌ Π½Π°Π½ΠΎΡΡΡΡΠΊΡΡΡΠ½ΠΈΠΌ
ΡΠ΅ΡΡΠΈΡΠ°ΠΌΠ° Π΄Π°ΡΠ΅ ΡΡ ΠΊΠ°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΠ°Π½Π΅ ΡΠ»Π΅Π΄Π΅ΡΠΈΠΌ ΠΌΠ΅ΡΠΎΠ΄Π°ΠΌΠ°: ΠΠΈΠΊΡΠΎΡΠΊΠΎΠΏΠΈΡΠΎΠΌ Ρ ΠΏΠΎΡΡ
Π°ΡΠΎΠΌΡΠΊΠΈΡ
ΡΠΈΠ»Π° (AFM), ΠΏΡΠΈΠΌΠ΅Π½ΠΎΠΌ ΡΠ°ΡΠΊΠ°ΡΡΠΎΠ³ (tapping mode) ΠΈ ΡΠ°Π·Π½ΠΎΠ³ Π½Π°ΡΠΈΠ½Π°
ΡΠ½ΠΈΠΌΠ°ΡΠ° (phase mode) ΠΈΠ·Π²ΡΡΠ΅Π½Π΅ ΡΡ ΡΠΎΠΏΠΎΠ³ΡΠ°ΡΡΠΊΠ° ΠΈ ΡΠ°Π·Π½Π° Π°Π½Π°Π»ΠΈΠ·Π° ΠΏΡΠΎΠΌΠ΅Π½Π°
Π½Π°ΡΡΠ°Π»ΠΈΡ
Π½Π° ΠΏΠΎΠ²ΡΡΠΈΠ½ΠΈ HDPE; ΠΡΠΎΠΌΠ΅Π½Π΅ Ρ ΡΡΡΡΠΊΡΡΡΠΈ ΠΏΠΎΠΏΡΠ΅ΡΠ½ΠΎΠ³ ΠΏΡΠ΅ΡΠ΅ΠΊΠ° ΠΊΠ°ΠΎ ΠΈ
Π°Π½Π°Π»ΠΈΠ·Π΅ Π·ΠΎΠ½Π° ΡΠ°Π΄ΠΈΡΠ°ΡΠΈΠΎΠ½ΠΎΠ³ ΠΎΡΡΠ΅ΡΠ΅ΡΠ° ΠΏΡΠ°ΡΠ΅Π½Π΅ ΡΡ ΠΌΠΈΠΊΡΠΎΡΠΊΠΎΠΏΠΈΡΠΎΠΌ ΡΠ°
ΠΏΡΠΎΠΌΠ΅Π½ΡΠΈΠ²ΠΎ - ΠΊΠΎΠ½ΡΡΠΎΠ»ΠΈΡΠ°Π½ΠΎΠΌ ΡΠΈΠ»ΠΎΠΌ (AFM β FMM) Π·Π°ΡΠ½ΠΎΠ²Π°Π½ΠΎΡ Π½Π°
ΠΊΠΎΠ½ΡΡΠΎΠ»ΠΈΡΠ°Π½ΠΈΠΌ ΠΎΡΡΠΈΠ»Π°ΡΠΈΡΠ°ΠΌΠ° Π½Π° ΠΎΠ±Π»Π°ΡΡΠΈΠΌΠ° ΡΠ°Π·Π»ΠΈΡΠΈΡΠ΅ Π²ΠΈΡΠΊΠΎΠ·Π½ΠΎΡΡΠΈ Ρ
ΠΌΠ°ΡΠ΅ΡΠΈΡΠ°Π»Ρ. ΠΠ½Π°Π»ΠΈΠ·ΠΎΠΌ ΡΡΠ½ΠΊΡΠΈΡΠ΅ ΡΠΏΠ΅ΠΊΡΡΠ° ΡΠ½Π°Π³Π΅ (PSD) ΠΈΡΠΏΠΈΡΠ°Π½Π΅ ΡΡ ΠΏΠΎΠ²ΡΡΠΈΠ½ΡΠΊΠ΅ ΠΏΠΎΡΠ°Π²Π΅ Π½Π°ΡΡΠ°Π»Π΅ ΡΠΎΠ½ΡΠΊΠΎΠΌ ΠΈΠΌΠΏΠ»Π°Π½ΡΠ°ΡΠΈΡΠΎΠΌ ΠΈ ΠΏΡΠ΅Π΄ΡΡΠ°Π²ΡΠ΅Π½ΠΈ ΡΡ ΠΎΡΠ½ΠΎΠ²Π½ΠΈ ΠΌΠ΅Ρ
Π°Π½ΠΈΠ·ΠΌΠΈ
ΡΠ΅Π°ΠΊΡΠΈΡΠ° Π½Π° ΠΏΠΎΠ²ΡΡΠΈΠ½ΠΈ Π°Π½Π°Π»ΠΈΠ·ΠΎΠΌ Π½Π°Π³ΠΈΠ±Π° PSD ΡΡΠ½ΠΊΡΠΈΡΠ΅. ΠΠΎΠ΄Π°ΡΠ½Π΅ ΠΈΠ½ΡΠΎΡΠΌΠ°ΡΠΈΡΠ΅ ΠΎ
ΠΏΠΎΠ²ΡΡΠΈΠ½ΡΠΊΠΈΠΌ ΡΠ²ΠΎΡΡΡΠ²ΠΈΠΌΠ° ΠΈ Π°Π΄Ρ
Π΅Π·ΠΈΠ²Π½ΠΎΡΡΠΈ ΠΏΠΎΠ²ΡΡΠΈΠ½Π° Π΄ΠΎΠ±ΠΈΡΠ΅Π½ΠΈΡ
ΡΠΎΠ½ΡΠΊΠΎΠΌ
ΠΈΠΌΠΏΠ»Π°Π½ΡΠ°ΡΠΈΡΠΎΠΌ Π΄ΠΎΠ±ΠΈΡΠ΅Π½Π΅ ΡΡ ΠΌΠ΅ΡΠ΅ΡΠ΅ΠΌ ΠΊΠΎΠ½ΡΠ°ΠΊΡΠ½ΠΎΠ³ ΡΠ³Π»Π° ΠΈ ΠΈΠ·ΡΠ°ΡΡΠ½Π°Π²Π°ΡΠ΅ΠΌ
ΠΏΠΎΠ²ΡΡΠΈΠ½ΡΠΊΠ΅ Π΅Π½Π΅ΡΠ³ΠΈΡΠ΅. Π Π°Π·Π»ΠΈΠΊΠ΅ Ρ Π΄ΠΎΠ·Π°ΠΌΠ° ΠΈΠΌΠΏΠ»Π°Π½ΡΠ°ΡΠΈΡΠ΅ ΠΊΠ°ΠΎ ΠΈ Π΅Π½Π΅ΡΠ³ΠΈΡΠ°ΠΌΠ°
ΡΡΠ»ΠΎΠ²ΠΈΠ»Π΅ ΡΡ Π½Π°ΡΡΠ°Π½Π°ΠΊ ΠΏΠΎΠ²ΡΡΠΈΠ½Π° ΡΠ°Π·Π»ΠΈΡΠΈΡΠΈΡ
ΠΏΠΎΠ»Π°ΡΠ½ΠΎΡΡΠΈ ΠΈ Π°ΡΠΈΠ½ΠΈΡΠ΅ΡΠ°.
ΠΡΠΎΠΌΠ΅Π½Π΅ Ρ Ρ
Π΅ΠΌΠΈΡΡΠΊΠΎΠΌ ΡΠ°ΡΡΠ°Π²Ρ ΠΏΠΎΠ²ΡΡΠΈΠ½Π΅ ΠΏΠΎΡΠ²ΡΡΠ΅Π½Π΅ ΡΡ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠΌ
ΠΈΠ½ΡΡΠ°ΡΡΠ²Π΅Π½Π΅ ΡΠΏΠ΅ΠΊΡΡΠΎΡΠΊΠΎΠΏΠΈΡΠ΅ FTIR-ATR (FTIR - attenuated total reflectance), Π³Π΄Π΅
ΡΠ΅ ΡΠΎΡΠ΅Π½ Π½Π°ΡΡΠ°Π½Π°ΠΊ Π½ΠΎΠ²ΠΈΡ
Ρ
Π΅ΠΌΠΈΡΡΠΊΠΈΡ
Π²Π΅Π·Π° ΡΡΠ»Π΅Π΄ ΡΠΎΠ½ΡΠΊΠ΅ ΠΈΠΌΠΏΠ»Π°Π½ΡΠ°ΡΠΈΡΠ΅.
Π‘ΠΈΠΌΡΠ»Π°ΡΠΈΡΠ° ΡΡΠ»ΠΎΠ²Π° ΡΠ΅Π°Π»Π½Π΅ Π΅ΠΊΡΠΏΠ»ΠΎΠ°ΡΠ°ΡΠΈΡΠ΅ ΠΈΠ·Π²ΡΡΠ΅Π½Π° ΡΠ΅ Ρ ΠΎΠ·ΠΎΠ½ Π³Π΅Π½Π΅ΡΠ°ΡΠΎΡΡ
Ρ ΡΠΎΠΊΡ ΠΎΠ΄ 2 ΡΠ°ΡΠ°. Π£Π·ΠΎΡΡΠΈ ΠΈΠΌΠΏΠ»Π°Π½ΡΠΈΡΠ°Π½ΠΈ ΡΠΎΠ½ΠΈΠΌΠ° Π·Π»Π°ΡΠ° ΡΠ°Π·Π»ΠΈΡΠΈΡΠΈΡ
Π΅Π½Π΅ΡΠ³ΠΈΡΠ°
ΠΏΠΎΠΊΠ°Π·Π°Π»ΠΈ ΡΡ ΡΠ°Π·Π»ΠΈΡΠΈΡΡ ΠΎΡΠΏΠΎΡΠ½ΠΎΡΡ Π½Π° Π΄Π΅ΡΡΡΠ²ΠΎ ΠΎΠ·ΠΎΠ½Π°. ΠΠ°ΡΡΡΠ°Π±ΠΈΠ»Π½ΠΈΡΠΈ ΠΌΠ΅ΡΡ ΡΠΈΠΌΠ° ΡΠ΅
ΡΠ·ΠΎΡΠ°ΠΊ ΠΈΠΌΠΏΠ»Π°Π½ΡΠΈΡΠ°Π½ ΡΠΎΠ½ΠΈΠΌΠ° Π·Π»Π°ΡΠ° Π΅Π½Π΅ΡΠ³ΠΈΡΠ΅ 150 keV. ΠΠ°Π½ΠΎΡΡΡΡΠΊΡΡΡΠ½ΠΈ ΡΠΈΡΡΠ΅ΠΌΠΈ
ΠΌΠ΅ΡΠ°Π» ΠΏΠΎΠ»ΠΈΠΌΠ΅Ρ ΠΈΡΠΏΠΈΡΠ°Π½ΠΈ ΡΡ Π½Π° ΠΈΠ½Ρ
ΠΈΠ±ΠΈΡΠΈΡΡ Π½Π° Π΄Π²Π° Π½Π°ΡΡΠ΅ΡΡΠ° ΠΊΠ»ΠΈΠ½ΠΈΡΠΊΠ°
ΠΌΠΈΠΊΡΠΎΠΎΡΠ³Π°Π½ΠΈΠ·ΠΌΠ° S. aureus ΠΈ E. coli. ΠΠ±ΠΎΠ³ ΡΠ²ΠΎΡΠ΅ ΠΏΠΎΡΠ΅Π½ΡΠΈΡΠ°Π»Π½Π΅ ΠΏΡΠΈΠΌΠ΅Π½Π΅ Ρ
Π±ΠΈΠΎΠΌΠ΅Π΄ΠΈΡΠΈΠ½ΠΈ Π²Π΅ΠΎΠΌΠ° ΡΠ΅ Π²Π°ΠΆΠ½ΠΎ ΠΈΡΠΏΠΈΡΠ°ΡΠΈ ΠΏΠΎΠ½Π°ΡΠ°ΡΠ΅ ΠΎΠ²ΠΈΡ
ΡΠΈΡΡΠ΅ΠΌΠ° Ρ
ΠΌΠΈΠΊΡΠΎΠ±ΠΈΠΎΠ»ΠΎΡΠΊΠΈ Π½Π΅ΠΏΠΎΠΆΠ΅ΡΠ½ΠΈΠΌ ΡΡΠ΅Π΄ΠΈΠ½Π°ΠΌΠ°. ΠΡΡΡΠ°ΠΆΠΈΠ²Π°ΡΠ° ΡΡ ΠΏΠΎΠΊΠ°Π·Π°Π»Π° Π΄Π° ΡΡ ΡΠΎΠ½ΠΈ
ΡΡΠ΅Π±ΡΠ° ΠΈ Π·Π»Π°ΡΠ° Π΄ΠΎΠ±ΡΠΈ ΠΈΠ½Ρ
ΠΈΠ±ΠΈΡΠΎΡΠΈ Ρ ΡΠ»ΡΡΠ°ΡΡ S. aureus Π΄ΠΎΠΊ ΡΠ΅ Π·Π° ΠΈΠ½Ρ
ΠΈΠ±ΠΈΡΠΈΡΡ E. coli
ΠΏΠΎΠ»ΠΈΠΌΠ΅ΡΠ½ΠΈ ΠΌΠ°ΡΠ΅ΡΠΈΡΠ°Π» ΠΏΠΎΡΡΠ΅Π±Π½ΠΎ Π΄ΠΎΠ΄Π°ΡΠ½ΠΎ ΠΎΠΏΠ»Π΅ΠΌΠ΅Π½ΠΈΡΠΈ Π½Π΅ΠΊΠΈΠΌ Π°Π½ΡΠΈΠ±ΠΈΠΎΡΠΈΡΠΈΠΌΠ° ΠΈΠ»ΠΈ
Π±ΠΈΠΎΡΠΈΠ΄ΠΈΠΌΠ°.In this doctoral dissertation the morphological and structural properties of
silver and gold nanoparticles, obtained by ion implantation in high density
polyethylene (HDPE) have been studied. In addition to the basic properties, potential
applications of these materials and their behavior were also investigated in real
conditions. Silver and gold ions have been implanted with doses of 1.1015, 5.1015 and
1.1016 ions/cm2 and energies of 50, 100, 150 and 200 keV. The selection of the
doses and energies were the result of detailed research on the possibilities of
achieving optimal properties of nanostructured systems metal - polymer.
Preliminary calculations of the projected range, distribution of ions, energy
loss and potential radiation damage were performed using software package SRIM
(Stopping Range of Ions in Matters). The presence of implanted ion species in the
polymer matrix was confirmed by X-ray diffraction (XRD), Mass spectrometry ICP β
MS, X-ray photoelectron spectroscopy (XPS) and transmition and scanning electron
microscopy (TEM, SEM). Optical properties and the degree of the polymer activation
with nanoparticles of silver and gold were performed using spectroscopic
ellipsometry (SE). Confirmed nanostructured particles incorporated in the polymer
matrix are further characterized by the following methods: Atomic Force Microscopy
(AFM), using the tapping mode and phase mode for topographic and phase analysis
of the changes on the HDPE surface; Changes in the cross section as well as the
analysis of radiation damage zone were performed using Force Modulation
Microscopy (AFM β FMM), based on the controlled oscillations in areas with different
viscosities in the material. Power Spectral Density (PSD) was used for the
investigation of the surface phenomena caused by ion implantation and presented
the basic surface reactions mechanisms analysing the slope of PSD functions.
Additional information on surface properties and surface adhesion obtained by ion
implantation were obtained using the Contact Angle Measurement (CAM) and calculating the free surface energy. Differences in the implantation doses and
energies have caused the formation of different surface polarity and affinity.
Changes in the chemical composition of the surface were confirmed using
infrared spectroscopy FTIR-ATR (FTIR - attenuated total reflectance), where new
chemical bonds are obtained due to ion implantation.
Simulation of the conditions of the real operation was performed in the ozone
generator during the 2 hours. Samples implanted with gold ions of different energies
showed different resistance to ozone. The most stable among them was the gold
implanted sample with the energy of 150 keV. Nanostructured metal β polymer
systems were tested for inhibition of the two most common clinical microorganism S.
aureus and E. coli. Because of their potential applications in biomedicine it is very
important to examine the behavior of these systems in microbiological undesirable
areas. The obtained results have shown that silver and gold ions are good inhibitors
in the case of S. aureus, while for the inhibition of E. coli, polymeric material should
be further enhanced using certain antibiotics or biocides
Microstructural Analysis of Thermally Treated Geopolymer Incorporated with Neodymium
The following investigation presents the thermal treatment of geopolymer based on metakaolin, with the addition of 1% and 5% of neodymium in the form Nd2O3, at 300ΛC, 600ΛC and 900ΛC. Six samples were synthesized in total. Samples GT1 and GT2 containing 1% and 5% of Nd2O3, and they were treated at 300ΛC, while the samples GT3 and GT4 also had the same percentage composition of Nd2O3 and were treated at 600ΛC, and the samples GT5 and GT6 were treated at 900ΛC with the same percentage of Nd2O3. Physical and chemical changes in the aluminosilicate geopolymer matrix were monitored. The incorporation of rare earths into the polymer network of aluminosilicates has been proven to disrupt the basic structure of geopolymers, however, with increased temperature, these materials show even more unusual properties. DRIFT was employed to investigate the structural properties of thermally treated geopolymers. Additionally, TEM provided further insight into the structural changes induced by thermal treatment and Nd2O3 doping. SEM was used to observe the effect of thermal treatment temperature (300ΛC and 600ΛC) on geopolymer porosity, which resulted in the appearance of large pores and cracks in the material. The UV/Vis spectra of the synthesized Nd3+ doped geopolymers exhibited attractive optical properties. The photoexcitation of electrons from the valence band to the conduction band in the geopolymer structure is responsible for the absorbance observed at 260 nm, while the minor peaks at slightly longer wavelengths can be linked to Nd3
Biocompatible nanostructure materials
Materials suitable for medical systems have always been the product of interdisciplinary collaboration between material and biological science. As well as different area of physics and chemistry. For medical application materials must not damage blood cells or bones and must be resistant. Some implant materials for chemical bonds can be stabilized by implantation of different elements or deposition of very thin films. In this work we presented some results for replacement of damaged human tissues.Physical chemistry 2008 : 9th international conference on fundamental and applied aspects of physical chemistry; Belgrade (Serbia); 24-28 September 200
Investigation of Cl- and So4 2- anion absorption in natural soils
In this paper, the results of vertical migration of chloride and sulphate anions in soil are presented. The soil was contaminated with NaCl and CuSO4. Anions migration were monitored during one hydrological year (425 days). The first sample was taken after 150 days and afterwards samples were taken every 50 days. Before the profile contamination physical and chemical analyses of soil have been done. The obtained results show that chloride concentration in soil was in the range from 0.67 mg/kg up to 11.92 mg/kg, while sulphate concentration was in the range from 0.65 mg/kg up to 9.79 mg/kg
Structural and optical properties of HDPE implanted with medium fluences silver ions
The implantation of high-density polyethylene (HDPE) has been conducted using Ag+ ions with energy of 60 keV, achieved fluences 1.5 and 10β’1015 ions/cm2. Transmission electron microscopy (STEM) and field emission gun - scanning electron microscopy (FEG-SEM) showed the existence of nanoparticle clusters. X ray photoelectron spectroscopy (XPS) revealed the presence of silver in the sample surface region. The surface topography was studied by atomic force microscopy (AFM), while the surface composition uniformity was analyzed using phase imaging AFM. Optical characterization obtained by spectroscopic ellipsometry (SE) showed changes in refractive index, extinction coefficient and the optical band gap with the fluence of implanted ions
Radiological and structural analysis of aluminosilicate materials incorporated with samarium (III)-oxide
This study focused on analyzing samples of aluminosilicate materials in which different percentages of samarium (III)-oxide were incorporated. Basic samples and thermally treated samples at 600 Β°C were analyzed. Introducing samarium (III)-oxide into the polymer matrix of aluminosilicates has been demonstrated to alter the fundamental structure of aluminosilicate materials. Interestingly, at elevated temperatures, these materials exhibit even more distinctive properties. The gamma ray spectrometric analysis results were used to conduct radiological analysis. Different methods monitor physico-chemical changes within the aluminosilicate materials. By introducing Sm3+ into the aluminosilicate matrix, the basic structure of the aluminosilicate is disturbed. The DRIFT method was used to analyze the structural properties. The analysis of the microstructural properties of the selected samples was carried out using a scanning electron microscope (SEM) and enabled the examination of the fine details of the structure of the materials thermally treated at 600 Β°C which resulted in the appearance of significant pores and cracks in the material.Twenty-First Young Researchersβ Conference - Materials Science and Engineering: Program and the Book of Abstracts; November 29 β December 1, 2023, Belgrade, Serbi
- β¦