TY  - JOUR
AU  - Jaksić, Zoran
AU  - Pantelić, Dejan
AU  - Sarajlić, Milija
AU  - Savić-Sević, Svetlana
AU  - Matović, Jovan
AU  - Jelenković, Branislav
AU  - Vasiljević-Radović, Dana
AU  - Curcić, Srecko
AU  - Vuković, Slobodan
AU  - Pavlović, Vladimir
AU  - Buha, Jelena
AU  - Lacković, Vesna
AU  - Labudović-Borović, Milica
AU  - Curcić, Bozidar
PY  - 2013
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/3322
AB  - In this paper we propose a possible use of butterfly scales as templates for ordered 2D or 3D nanophotonic materials, with complexity not easily reproducible by conventional micro/nanofabrication methods. Functionalization through laminar nanocompositing is utilized to impart novel properties to the biological scaffold. An extremely wide variability of butterfly scale forms, shapes, sizes and fine structures is observed in nature, many of them already possessing peculiar optical properties. Their nanophotonic functionalization ensures a large choice of forms and functions, including enhanced light localization, light and plasmon waveguiding and general metamaterial behavior, to mention a few. We show that one is able to achieve a combination of plasmonics and bionics, resulting in functionalities seldom if ever met in nature. As an illustration we have analyzed the photonic properties of the nanostructured scales on the wings of Purple Emperor butterflies Apatura ilia, Apatura iris and Sasakia charonda. Their intricate nanometer-sized structures produce remarkable ultraviolet-blue iridescence, spectrally and directionally narrow. We present our analysis of their plasmonic/nanophotonic functionalization including preliminary calculations and initial experimental results. As a simple example, we used radiofrequent sputtering to produce nanoaperture-based plasmonic structures at a fraction of the cost and necessary engineering efforts compared to the conventional top-down methods. We conclude that the described pathway to biomimetic plasmonics offers potentials for significant expansion of the nanophotonic and nanoplasmonic material toolbox.
PB  - Elsevier Science Bv, Amsterdam
T2  - Optical Materials
T1  - Butterfly scales as bionic templates for complex ordered nanophotonic materials: A pathway to biomimetic plasmonics
EP  - 1875
IS  - 10
SP  - 1869
VL  - 35
DO  - 10.1016/j.optmat.2013.04.004
ER  - 

@article{
author = "Jaksić, Zoran and Pantelić, Dejan and Sarajlić, Milija and Savić-Sević, Svetlana and Matović, Jovan and Jelenković, Branislav and Vasiljević-Radović, Dana and Curcić, Srecko and Vuković, Slobodan and Pavlović, Vladimir and Buha, Jelena and Lacković, Vesna and Labudović-Borović, Milica and Curcić, Bozidar",
year = "2013",
abstract = "In this paper we propose a possible use of butterfly scales as templates for ordered 2D or 3D nanophotonic materials, with complexity not easily reproducible by conventional micro/nanofabrication methods. Functionalization through laminar nanocompositing is utilized to impart novel properties to the biological scaffold. An extremely wide variability of butterfly scale forms, shapes, sizes and fine structures is observed in nature, many of them already possessing peculiar optical properties. Their nanophotonic functionalization ensures a large choice of forms and functions, including enhanced light localization, light and plasmon waveguiding and general metamaterial behavior, to mention a few. We show that one is able to achieve a combination of plasmonics and bionics, resulting in functionalities seldom if ever met in nature. As an illustration we have analyzed the photonic properties of the nanostructured scales on the wings of Purple Emperor butterflies Apatura ilia, Apatura iris and Sasakia charonda. Their intricate nanometer-sized structures produce remarkable ultraviolet-blue iridescence, spectrally and directionally narrow. We present our analysis of their plasmonic/nanophotonic functionalization including preliminary calculations and initial experimental results. As a simple example, we used radiofrequent sputtering to produce nanoaperture-based plasmonic structures at a fraction of the cost and necessary engineering efforts compared to the conventional top-down methods. We conclude that the described pathway to biomimetic plasmonics offers potentials for significant expansion of the nanophotonic and nanoplasmonic material toolbox.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Optical Materials",
title = "Butterfly scales as bionic templates for complex ordered nanophotonic materials: A pathway to biomimetic plasmonics",
pages = "1875-1869",
number = "10",
volume = "35",
doi = "10.1016/j.optmat.2013.04.004"
}

Jaksić, Z., Pantelić, D., Sarajlić, M., Savić-Sević, S., Matović, J., Jelenković, B., Vasiljević-Radović, D., Curcić, S., Vuković, S., Pavlović, V., Buha, J., Lacković, V., Labudović-Borović, M.,& Curcić, B.. (2013). Butterfly scales as bionic templates for complex ordered nanophotonic materials: A pathway to biomimetic plasmonics. in Optical Materials
Elsevier Science Bv, Amsterdam., 35(10), 1869-1875.
https://doi.org/10.1016/j.optmat.2013.04.004

Jaksić Z, Pantelić D, Sarajlić M, Savić-Sević S, Matović J, Jelenković B, Vasiljević-Radović D, Curcić S, Vuković S, Pavlović V, Buha J, Lacković V, Labudović-Borović M, Curcić B. Butterfly scales as bionic templates for complex ordered nanophotonic materials: A pathway to biomimetic plasmonics. in Optical Materials. 2013;35(10):1869-1875.
doi:10.1016/j.optmat.2013.04.004 .

Jaksić, Zoran, Pantelić, Dejan, Sarajlić, Milija, Savić-Sević, Svetlana, Matović, Jovan, Jelenković, Branislav, Vasiljević-Radović, Dana, Curcić, Srecko, Vuković, Slobodan, Pavlović, Vladimir, Buha, Jelena, Lacković, Vesna, Labudović-Borović, Milica, Curcić, Bozidar, "Butterfly scales as bionic templates for complex ordered nanophotonic materials: A pathway to biomimetic plasmonics" in Optical Materials, 35, no. 10 (2013):1869-1875,
https://doi.org/10.1016/j.optmat.2013.04.004 . .

TY  - JOUR
AU  - Labus, Nebojša
AU  - Krstić, J.
AU  - Marković, S.
AU  - Vasiljević-Radović, Dana
AU  - Nikolić, M.V.
AU  - Pavlović, Vladimir
PY  - 2013
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/3319
AB  - ZnTiO3 nanopowder as a constitutive component in compact production was primarily characterised. Scanning electron micrographs of as received powder were recorded. Mercury porosimetry and nitrogen adsorption were also performed on loose powder. Particle size distribution in a water powder suspension was determined with a laser particle size analyser. Compaction was performed on different pressures in a range from 100 to 400 MPa using the uniaxial double sided compaction technique without binder and lubricant. Micrographs of compacted specimens were obtained using scanning electron microscopy and atomic force microscopy. Pore size distribution was also determined by mercury porosimetry and nitrogen adsorption. Results revealed that with increasing pressure during compaction interagglomerate pores diminish in size until they reach some critical diameter related to the intra-agglomerate pore size.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - ZnTiO3 Ceramic Nanopowder Microstructure Changes During Compaction
EP  - 221
IS  - 2
SP  - 209
VL  - 45
DO  - 10.2298/SOS1302209L
ER  - 

@article{
author = "Labus, Nebojša and Krstić, J. and Marković, S. and Vasiljević-Radović, Dana and Nikolić, M.V. and Pavlović, Vladimir",
year = "2013",
abstract = "ZnTiO3 nanopowder as a constitutive component in compact production was primarily characterised. Scanning electron micrographs of as received powder were recorded. Mercury porosimetry and nitrogen adsorption were also performed on loose powder. Particle size distribution in a water powder suspension was determined with a laser particle size analyser. Compaction was performed on different pressures in a range from 100 to 400 MPa using the uniaxial double sided compaction technique without binder and lubricant. Micrographs of compacted specimens were obtained using scanning electron microscopy and atomic force microscopy. Pore size distribution was also determined by mercury porosimetry and nitrogen adsorption. Results revealed that with increasing pressure during compaction interagglomerate pores diminish in size until they reach some critical diameter related to the intra-agglomerate pore size.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "ZnTiO3 Ceramic Nanopowder Microstructure Changes During Compaction",
pages = "221-209",
number = "2",
volume = "45",
doi = "10.2298/SOS1302209L"
}

Labus, N., Krstić, J., Marković, S., Vasiljević-Radović, D., Nikolić, M.V.,& Pavlović, V.. (2013). ZnTiO3 Ceramic Nanopowder Microstructure Changes During Compaction. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 45(2), 209-221.
https://doi.org/10.2298/SOS1302209L

Labus N, Krstić J, Marković S, Vasiljević-Radović D, Nikolić M, Pavlović V. ZnTiO3 Ceramic Nanopowder Microstructure Changes During Compaction. in Science of Sintering. 2013;45(2):209-221.
doi:10.2298/SOS1302209L .

Labus, Nebojša, Krstić, J., Marković, S., Vasiljević-Radović, Dana, Nikolić, M.V., Pavlović, Vladimir, "ZnTiO3 Ceramic Nanopowder Microstructure Changes During Compaction" in Science of Sintering, 45, no. 2 (2013):209-221,
https://doi.org/10.2298/SOS1302209L . .

TY  - JOUR
AU  - Pergal, Marija V.
AU  - Antić, Vesna
AU  - Tovilović, Gordana
AU  - Nestorov, Jelena
AU  - Vasiljević-Radović, Dana
AU  - Djonlagić, Jasna
PY  - 2012
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/2954
AB  - Novel polyurethane co-polymers (TPUs), based on poly(epsilon-caprolactone)-block-poly(dimethylsiloxane)-block-poly(epsilon-caprolactone) (PCL-PDMS-PCL) as soft segment and 4,4'-methylenediphenyl diisocyanate (MDI) and 1,4-butanediol (BD) as hard segment, were synthesized and evaluated for biomedical applications. The content of hard segments (HS) in the polymer chains was varied from 9 to 63 wt%. The influence of the content and length of the HS on the thermal, surface, mechanical properties and biocompatibility was investigated. The structure, composition and HS length were examined using H-1- and quantitative C-13-NMR spectroscopy. DSC results implied that the synthesized TPUs were semicrystalline polymers in which both the hard MDI/BD and soft PCL-PDMS-PCL segments participated. It was found that an increase in the average HS length (from 1.2 to 14.4 MDI/BD units) was accompanied by an increase in the crystallinity of the hard segments, storage moduli, hydrophilicity and degree of microphase separation of the co-polymers. Depending on the HS content, a gradual variation in surface properties of co-polymers was revealed by FTIR, AFM and static water contact angle measurements. The in vitro biocompatibility of co-polymers was evaluated using the endothelial EA. hy926 cell line and protein adsorption on the polyurethane films. All synthesized TPUs adsorbed more albumin than fibrinogen from multicomponent protein mixture, which may indicate biocompatibility. The polyurethane films with high HS content and/or high roughness coefficient exhibit good surface properties and biocompatible behavior, which was confirmed by non-toxic effects to cells and good cell adhesion. Therefore, the non-cytotoxic chemistry of the co-polymers makes them good candidates for further development as biomedical implants.
PB  - Taylor & Francis Ltd, Abingdon
T2  - Journal of Biomaterials Science-Polymer Edition
T1  - In Vitro Biocompatibility Evaluation of Novel Urethane-Siloxane Co-Polymers Based on Poly(epsilon-Caprolactone)-block-Poly(Dimethylsiloxane)-block-Poly(epsilon-Caprolactone)
EP  - 1657
IS  - 13
SP  - 1629
VL  - 23
DO  - 10.1163/092050611X589338
ER  - 

@article{
author = "Pergal, Marija V. and Antić, Vesna and Tovilović, Gordana and Nestorov, Jelena and Vasiljević-Radović, Dana and Djonlagić, Jasna",
year = "2012",
abstract = "Novel polyurethane co-polymers (TPUs), based on poly(epsilon-caprolactone)-block-poly(dimethylsiloxane)-block-poly(epsilon-caprolactone) (PCL-PDMS-PCL) as soft segment and 4,4'-methylenediphenyl diisocyanate (MDI) and 1,4-butanediol (BD) as hard segment, were synthesized and evaluated for biomedical applications. The content of hard segments (HS) in the polymer chains was varied from 9 to 63 wt%. The influence of the content and length of the HS on the thermal, surface, mechanical properties and biocompatibility was investigated. The structure, composition and HS length were examined using H-1- and quantitative C-13-NMR spectroscopy. DSC results implied that the synthesized TPUs were semicrystalline polymers in which both the hard MDI/BD and soft PCL-PDMS-PCL segments participated. It was found that an increase in the average HS length (from 1.2 to 14.4 MDI/BD units) was accompanied by an increase in the crystallinity of the hard segments, storage moduli, hydrophilicity and degree of microphase separation of the co-polymers. Depending on the HS content, a gradual variation in surface properties of co-polymers was revealed by FTIR, AFM and static water contact angle measurements. The in vitro biocompatibility of co-polymers was evaluated using the endothelial EA. hy926 cell line and protein adsorption on the polyurethane films. All synthesized TPUs adsorbed more albumin than fibrinogen from multicomponent protein mixture, which may indicate biocompatibility. The polyurethane films with high HS content and/or high roughness coefficient exhibit good surface properties and biocompatible behavior, which was confirmed by non-toxic effects to cells and good cell adhesion. Therefore, the non-cytotoxic chemistry of the co-polymers makes them good candidates for further development as biomedical implants.",
publisher = "Taylor & Francis Ltd, Abingdon",
journal = "Journal of Biomaterials Science-Polymer Edition",
title = "In Vitro Biocompatibility Evaluation of Novel Urethane-Siloxane Co-Polymers Based on Poly(epsilon-Caprolactone)-block-Poly(Dimethylsiloxane)-block-Poly(epsilon-Caprolactone)",
pages = "1657-1629",
number = "13",
volume = "23",
doi = "10.1163/092050611X589338"
}

Pergal, M. V., Antić, V., Tovilović, G., Nestorov, J., Vasiljević-Radović, D.,& Djonlagić, J.. (2012). In Vitro Biocompatibility Evaluation of Novel Urethane-Siloxane Co-Polymers Based on Poly(epsilon-Caprolactone)-block-Poly(Dimethylsiloxane)-block-Poly(epsilon-Caprolactone). in Journal of Biomaterials Science-Polymer Edition
Taylor & Francis Ltd, Abingdon., 23(13), 1629-1657.
https://doi.org/10.1163/092050611X589338

Pergal MV, Antić V, Tovilović G, Nestorov J, Vasiljević-Radović D, Djonlagić J. In Vitro Biocompatibility Evaluation of Novel Urethane-Siloxane Co-Polymers Based on Poly(epsilon-Caprolactone)-block-Poly(Dimethylsiloxane)-block-Poly(epsilon-Caprolactone). in Journal of Biomaterials Science-Polymer Edition. 2012;23(13):1629-1657.
doi:10.1163/092050611X589338 .

Pergal, Marija V., Antić, Vesna, Tovilović, Gordana, Nestorov, Jelena, Vasiljević-Radović, Dana, Djonlagić, Jasna, "In Vitro Biocompatibility Evaluation of Novel Urethane-Siloxane Co-Polymers Based on Poly(epsilon-Caprolactone)-block-Poly(Dimethylsiloxane)-block-Poly(epsilon-Caprolactone)" in Journal of Biomaterials Science-Polymer Edition, 23, no. 13 (2012):1629-1657,
https://doi.org/10.1163/092050611X589338 . .