TY  - JOUR
AU  - Žunić, Marija
AU  - Milutinović Nikolić, Aleksandra
AU  - Nastasović, Aleksandra
AU  - Vuković, Zorica
AU  - Lončarević, Davor
AU  - Vukovic, I.
AU  - Loos, K.
AU  - ten, Brinke G.
AU  - Jovanović, Dušan M.
PY  - 2013
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1323
AB  - The aim of this study was to obtain enhanced textural properties of macroporous crosslinked copolymer poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) by synthesizing nanocomposites with acid-modified bentonite. Nanocomposites were obtained by introducing various amounts of acid-modified bentonite (B-A) into the reaction system. All samples were characterized by attenuated total reflectance infrared spectroscopy, scanning electron microscopy, transmission electron microscopy (TEM), mercury intrusion porosimetry, and low temperature physisorption of nitrogen. The FTIR and TEM analysis confirmed incorporation of B-A into the copolymer structure and the successful formation of nanocomposites. TEM images confirmed formation of nanocomposites having both intercalated and exfoliated acid-modified bentonite in copolymer matrix. A significant increase of specific surface area, pore volume, and porosity of the nanocomposites in comparison to the copolymer were obtained. The difference between textural properties of nanocomposites with different amounts of incorporated acid-modified bentonite was less prominent.
PB  - Springer Verlag
T2  - Polymer Bulletin
T1  - Textural properties of poly(glycidyl methacrylate): acid-modified bentonite nanocomposites
VL  - 70
IS  - 6
SP  - 1805
EP  - 1818
DO  - 10.1007/s00289-013-0924-1
ER  - 

@article{
author = "Žunić, Marija and Milutinović Nikolić, Aleksandra and Nastasović, Aleksandra and Vuković, Zorica and Lončarević, Davor and Vukovic, I. and Loos, K. and ten, Brinke G. and Jovanović, Dušan M.",
year = "2013",
abstract = "The aim of this study was to obtain enhanced textural properties of macroporous crosslinked copolymer poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) by synthesizing nanocomposites with acid-modified bentonite. Nanocomposites were obtained by introducing various amounts of acid-modified bentonite (B-A) into the reaction system. All samples were characterized by attenuated total reflectance infrared spectroscopy, scanning electron microscopy, transmission electron microscopy (TEM), mercury intrusion porosimetry, and low temperature physisorption of nitrogen. The FTIR and TEM analysis confirmed incorporation of B-A into the copolymer structure and the successful formation of nanocomposites. TEM images confirmed formation of nanocomposites having both intercalated and exfoliated acid-modified bentonite in copolymer matrix. A significant increase of specific surface area, pore volume, and porosity of the nanocomposites in comparison to the copolymer were obtained. The difference between textural properties of nanocomposites with different amounts of incorporated acid-modified bentonite was less prominent.",
publisher = "Springer Verlag",
journal = "Polymer Bulletin",
title = "Textural properties of poly(glycidyl methacrylate): acid-modified bentonite nanocomposites",
volume = "70",
number = "6",
pages = "1805-1818",
doi = "10.1007/s00289-013-0924-1"
}

Žunić, M., Milutinović Nikolić, A., Nastasović, A., Vuković, Z., Lončarević, D., Vukovic, I., Loos, K., ten, B. G.,& Jovanović, D. M.. (2013). Textural properties of poly(glycidyl methacrylate): acid-modified bentonite nanocomposites. in Polymer Bulletin
Springer Verlag., 70(6), 1805-1818.
https://doi.org/10.1007/s00289-013-0924-1

Žunić M, Milutinović Nikolić A, Nastasović A, Vuković Z, Lončarević D, Vukovic I, Loos K, ten BG, Jovanović DM. Textural properties of poly(glycidyl methacrylate): acid-modified bentonite nanocomposites. in Polymer Bulletin. 2013;70(6):1805-1818.
doi:10.1007/s00289-013-0924-1 .

Žunić, Marija, Milutinović Nikolić, Aleksandra, Nastasović, Aleksandra, Vuković, Zorica, Lončarević, Davor, Vukovic, I., Loos, K., ten, Brinke G., Jovanović, Dušan M., "Textural properties of poly(glycidyl methacrylate): acid-modified bentonite nanocomposites" in Polymer Bulletin, 70, no. 6 (2013):1805-1818,
https://doi.org/10.1007/s00289-013-0924-1 . .

TY  - JOUR
AU  - Miletic, Nemanja
AU  - Nastasović, Aleksandra
AU  - Loos, Katja
PY  - 2012
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/968
AB  - Biotechnology also holds tremendous opportunities for realizing functional polymeric materials. Biocatalytic pathways to polymeric materials are an emerging research area with not only enormous scientific and technological promise, but also a tremendous impact on environmental issues. Many of the enzymatic polymerizations reported proceed in organic solvents. However, enzymes mostly show none of their profound characteristics in organic solvents and can easily denature under industrial conditions. Therefore, natural enzymes seldom have the features adequate to be used as industrial catalysts in organic synthesis. The productivity of enzymatic processes is often low due to substrate and/or product inhibition. An important route to improving enzyme performance in non-natural environments is to immobilize them. In this review we will first summarize some of the most prominent examples of enzymatic polymerizations and will subsequently review the most important immobilization routes that are used for the immobilization of biocatalysts relevant to the field of enzymatic polymerizations.
PB  - Elsevier Sci Ltd, Oxford
T2  - Bioresource Technology
T1  - Immobilization of biocatalysts for enzymatic polymerizations: Possibilities, advantages, applications
VL  - 115
SP  - 126
EP  - 135
DO  - 10.1016/j.biortech.2011.11.054
ER  - 

@article{
author = "Miletic, Nemanja and Nastasović, Aleksandra and Loos, Katja",
year = "2012",
abstract = "Biotechnology also holds tremendous opportunities for realizing functional polymeric materials. Biocatalytic pathways to polymeric materials are an emerging research area with not only enormous scientific and technological promise, but also a tremendous impact on environmental issues. Many of the enzymatic polymerizations reported proceed in organic solvents. However, enzymes mostly show none of their profound characteristics in organic solvents and can easily denature under industrial conditions. Therefore, natural enzymes seldom have the features adequate to be used as industrial catalysts in organic synthesis. The productivity of enzymatic processes is often low due to substrate and/or product inhibition. An important route to improving enzyme performance in non-natural environments is to immobilize them. In this review we will first summarize some of the most prominent examples of enzymatic polymerizations and will subsequently review the most important immobilization routes that are used for the immobilization of biocatalysts relevant to the field of enzymatic polymerizations.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Bioresource Technology",
title = "Immobilization of biocatalysts for enzymatic polymerizations: Possibilities, advantages, applications",
volume = "115",
pages = "126-135",
doi = "10.1016/j.biortech.2011.11.054"
}

Miletic, N., Nastasović, A.,& Loos, K.. (2012). Immobilization of biocatalysts for enzymatic polymerizations: Possibilities, advantages, applications. in Bioresource Technology
Elsevier Sci Ltd, Oxford., 115, 126-135.
https://doi.org/10.1016/j.biortech.2011.11.054

Miletic N, Nastasović A, Loos K. Immobilization of biocatalysts for enzymatic polymerizations: Possibilities, advantages, applications. in Bioresource Technology. 2012;115:126-135.
doi:10.1016/j.biortech.2011.11.054 .

Miletic, Nemanja, Nastasović, Aleksandra, Loos, Katja, "Immobilization of biocatalysts for enzymatic polymerizations: Possibilities, advantages, applications" in Bioresource Technology, 115 (2012):126-135,
https://doi.org/10.1016/j.biortech.2011.11.054 . .

TY  - JOUR
AU  - Vukovic, Ivana
AU  - Punzhin, Sergey
AU  - Vuković, Zorica
AU  - Onck, Patrick
AU  - De Hosson, Jeff Th M.
AU  - ten Brinke, Gerrit
AU  - Loos, Katja
PY  - 2011
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/766
AB  - Metal nanofoams with a porosity above 50% v/v have recently attracted great. Interest In materials science due to their interesting properties.. We.. demonstrate a new straightforward route to prepare such nanofoams using diblock copolymer-based PS-block-P4VP-(PDP) supramolecules that self-assemble Into a bicontinuous gyroid morphology, consisting of PS network channels in a P4VP(PDP) matrix. After dissolving the PDP, the P4VP. collapses onto the PS struts and a free-standing bicontinuous. gyroid template of 50-100 mu m thickness and interconnected, uniformly sized pores Is formed. The hydrophilic P4VP corona facilitates the penetration of water-based plating reagents into the porous template and enables a successful metal deposition. After plating, the polymer is simply degraded by heating, resulting In a well-ordered inverse gyroid nickel-foam. Essential to this approach Is the removal of only one part of the matrix (i.e., PDP). Therefore, the template accounts for 50% v/v or more. The porosity characteristics (amount, size of pores) can be tuned by selecting the appropriate copolymer and by adjusting the amount of PDP.
PB  - American Chemical Society (ACS)
T2  - ACS Nano
T1  - Supramolecular Route to Well-Ordered Metal Nanofoams
VL  - 5
IS  - 8
SP  - 6339
EP  - 6348
DO  - 10.1021/nn201421y
ER  - 

@article{
author = "Vukovic, Ivana and Punzhin, Sergey and Vuković, Zorica and Onck, Patrick and De Hosson, Jeff Th M. and ten Brinke, Gerrit and Loos, Katja",
year = "2011",
abstract = "Metal nanofoams with a porosity above 50% v/v have recently attracted great. Interest In materials science due to their interesting properties.. We.. demonstrate a new straightforward route to prepare such nanofoams using diblock copolymer-based PS-block-P4VP-(PDP) supramolecules that self-assemble Into a bicontinuous gyroid morphology, consisting of PS network channels in a P4VP(PDP) matrix. After dissolving the PDP, the P4VP. collapses onto the PS struts and a free-standing bicontinuous. gyroid template of 50-100 mu m thickness and interconnected, uniformly sized pores Is formed. The hydrophilic P4VP corona facilitates the penetration of water-based plating reagents into the porous template and enables a successful metal deposition. After plating, the polymer is simply degraded by heating, resulting In a well-ordered inverse gyroid nickel-foam. Essential to this approach Is the removal of only one part of the matrix (i.e., PDP). Therefore, the template accounts for 50% v/v or more. The porosity characteristics (amount, size of pores) can be tuned by selecting the appropriate copolymer and by adjusting the amount of PDP.",
publisher = "American Chemical Society (ACS)",
journal = "ACS Nano",
title = "Supramolecular Route to Well-Ordered Metal Nanofoams",
volume = "5",
number = "8",
pages = "6339-6348",
doi = "10.1021/nn201421y"
}

Vukovic, I., Punzhin, S., Vuković, Z., Onck, P., De Hosson, J. T. M., ten Brinke, G.,& Loos, K.. (2011). Supramolecular Route to Well-Ordered Metal Nanofoams. in ACS Nano
American Chemical Society (ACS)., 5(8), 6339-6348.
https://doi.org/10.1021/nn201421y

Vukovic I, Punzhin S, Vuković Z, Onck P, De Hosson JTM, ten Brinke G, Loos K. Supramolecular Route to Well-Ordered Metal Nanofoams. in ACS Nano. 2011;5(8):6339-6348.
doi:10.1021/nn201421y .

Vukovic, Ivana, Punzhin, Sergey, Vuković, Zorica, Onck, Patrick, De Hosson, Jeff Th M., ten Brinke, Gerrit, Loos, Katja, "Supramolecular Route to Well-Ordered Metal Nanofoams" in ACS Nano, 5, no. 8 (2011):6339-6348,
https://doi.org/10.1021/nn201421y . .

TY  - JOUR
AU  - du, Sart Gerrit Gobius
AU  - Vukovic, Ivana
AU  - Vuković, Zorica
AU  - Polushkin, Evgeny
AU  - Hiekkataipale, Panu
AU  - Ruokolainen, Janne
AU  - Loos, Katja
AU  - ten, Brinke Gerrit
PY  - 2011
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/826
AB  - Supramolecular complexes of a poly(tert-butoxystyrene)-block-polystyrene-block-poly(4-vinylpyridine) triblock copolymers and less than stoichiometric amounts of pentadecylphenol (PDP) are shown to self-assemble into a core-shell gyroid morphology with the core channels formed by the hydrogen-bonded P4VP(PDP) complexes. After structure formation, PDP was removed using a simple washing procedure, resulting in well-ordered nanoporous films that were used as templates for nickel plating.
PB  - Wiley-V C H Verlag Gmbh, Weinheim
T2  - Macromolecular Rapid Communications
T1  - Nanoporous Network Channels from Self-Assembled Triblock Copolymer Supramolecules
VL  - 32
IS  - 4
SP  - 366
EP  - 370
DO  - 10.1002/marc.201000674
ER  - 

@article{
author = "du, Sart Gerrit Gobius and Vukovic, Ivana and Vuković, Zorica and Polushkin, Evgeny and Hiekkataipale, Panu and Ruokolainen, Janne and Loos, Katja and ten, Brinke Gerrit",
year = "2011",
abstract = "Supramolecular complexes of a poly(tert-butoxystyrene)-block-polystyrene-block-poly(4-vinylpyridine) triblock copolymers and less than stoichiometric amounts of pentadecylphenol (PDP) are shown to self-assemble into a core-shell gyroid morphology with the core channels formed by the hydrogen-bonded P4VP(PDP) complexes. After structure formation, PDP was removed using a simple washing procedure, resulting in well-ordered nanoporous films that were used as templates for nickel plating.",
publisher = "Wiley-V C H Verlag Gmbh, Weinheim",
journal = "Macromolecular Rapid Communications",
title = "Nanoporous Network Channels from Self-Assembled Triblock Copolymer Supramolecules",
volume = "32",
number = "4",
pages = "366-370",
doi = "10.1002/marc.201000674"
}

du, S. G. G., Vukovic, I., Vuković, Z., Polushkin, E., Hiekkataipale, P., Ruokolainen, J., Loos, K.,& ten, B. G.. (2011). Nanoporous Network Channels from Self-Assembled Triblock Copolymer Supramolecules. in Macromolecular Rapid Communications
Wiley-V C H Verlag Gmbh, Weinheim., 32(4), 366-370.
https://doi.org/10.1002/marc.201000674

du SGG, Vukovic I, Vuković Z, Polushkin E, Hiekkataipale P, Ruokolainen J, Loos K, ten BG. Nanoporous Network Channels from Self-Assembled Triblock Copolymer Supramolecules. in Macromolecular Rapid Communications. 2011;32(4):366-370.
doi:10.1002/marc.201000674 .

du, Sart Gerrit Gobius, Vukovic, Ivana, Vuković, Zorica, Polushkin, Evgeny, Hiekkataipale, Panu, Ruokolainen, Janne, Loos, Katja, ten, Brinke Gerrit, "Nanoporous Network Channels from Self-Assembled Triblock Copolymer Supramolecules" in Macromolecular Rapid Communications, 32, no. 4 (2011):366-370,
https://doi.org/10.1002/marc.201000674 . .

TY  - JOUR
AU  - Detsi, E.
AU  - De, Jong E.
AU  - Zinchenko, A.
AU  - Vuković, Zorica
AU  - Vukovic, I.
AU  - Punzhin, S.
AU  - Loos, K.
AU  - ten, Brinke G.
AU  - De, Raedt H. A.
AU  - Onck, P. R.
AU  - De, Hosson J. T. M.
PY  - 2011
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/815
AB  - A proper quantification of the specific surface area of nanoporous materials is necessary for a better understanding of the properties that are affected by the high surface-area-to-volume ratio of nanoporous metals, nanoporous polymers and nanoporous ceramics. In this paper we derive an analytical expression that relates the specific surface area of arbitrary nanoporous materials to their solid bulk density and ligament size. Computed specific surface areas of porous materials with regular nanopores are in good agreement with the expression derived. These regular void geometries include single and double gyroid structures, as well as materials with spherical and cylindrical nanopores. Validation of the expression for disordered nanoporous materials is performed by investigation of the specific surface areas of various nanoporous gold electrodes in the double-layer charging regime.
PB  - Oxford : Pergamon-Elsevier Science Ltd
T2  - Acta Materialia
T1  - On the specific surface area of nanoporous materials
VL  - 59
IS  - 20
SP  - 7488
EP  - 7497
DO  - 10.1016/j.actamat.2011.08.025
ER  - 

@article{
author = "Detsi, E. and De, Jong E. and Zinchenko, A. and Vuković, Zorica and Vukovic, I. and Punzhin, S. and Loos, K. and ten, Brinke G. and De, Raedt H. A. and Onck, P. R. and De, Hosson J. T. M.",
year = "2011",
abstract = "A proper quantification of the specific surface area of nanoporous materials is necessary for a better understanding of the properties that are affected by the high surface-area-to-volume ratio of nanoporous metals, nanoporous polymers and nanoporous ceramics. In this paper we derive an analytical expression that relates the specific surface area of arbitrary nanoporous materials to their solid bulk density and ligament size. Computed specific surface areas of porous materials with regular nanopores are in good agreement with the expression derived. These regular void geometries include single and double gyroid structures, as well as materials with spherical and cylindrical nanopores. Validation of the expression for disordered nanoporous materials is performed by investigation of the specific surface areas of various nanoporous gold electrodes in the double-layer charging regime.",
publisher = "Oxford : Pergamon-Elsevier Science Ltd",
journal = "Acta Materialia",
title = "On the specific surface area of nanoporous materials",
volume = "59",
number = "20",
pages = "7488-7497",
doi = "10.1016/j.actamat.2011.08.025"
}

Detsi, E., De, J. E., Zinchenko, A., Vuković, Z., Vukovic, I., Punzhin, S., Loos, K., ten, B. G., De, R. H. A., Onck, P. R.,& De, H. J. T. M.. (2011). On the specific surface area of nanoporous materials. in Acta Materialia
Oxford : Pergamon-Elsevier Science Ltd., 59(20), 7488-7497.
https://doi.org/10.1016/j.actamat.2011.08.025

Detsi E, De JE, Zinchenko A, Vuković Z, Vukovic I, Punzhin S, Loos K, ten BG, De RHA, Onck PR, De HJTM. On the specific surface area of nanoporous materials. in Acta Materialia. 2011;59(20):7488-7497.
doi:10.1016/j.actamat.2011.08.025 .

Detsi, E., De, Jong E., Zinchenko, A., Vuković, Zorica, Vukovic, I., Punzhin, S., Loos, K., ten, Brinke G., De, Raedt H. A., Onck, P. R., De, Hosson J. T. M., "On the specific surface area of nanoporous materials" in Acta Materialia, 59, no. 20 (2011):7488-7497,
https://doi.org/10.1016/j.actamat.2011.08.025 . .

TY  - JOUR
AU  - Miletic, Nemanja
AU  - Vuković, Zorica
AU  - Nastasović, Aleksandra
AU  - Loos, Katja
PY  - 2011
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/812
AB  - A series of poly(GMA-co-EGDMA) resins with identical composition but varying particle sizes, pore radii, specific surface areas and specific volumes are studied to assess how Candida antarctica lipase B immobilization affects the porosity of the copolymer particles. Mercury porosimetry reveals a significant change in the average pore size (up to 6.1-fold), the specific surface area (up to 3.2-fold) and the specific volume (up to 2.1-fold) of the epoxy resin. A similar behaviour is observed for glutaraldehyde-modified epoxy resins. The influences of the resin porosity properties on the loading of Candida antarctica lipase B during immobilization and on the hydrolytic activity (hydrolysis of p-nitrophenyl acetate) of the immobilized lipase are studied.
PB  - Wiley-V C H Verlag Gmbh, Weinheim
T2  - Macromolecular Bioscience
T1  - Effect of Candida antarctica Lipase B Immobilization on the Porous Structure of the Carrier
VL  - 11
IS  - 11
SP  - 1537
EP  - 1543
DO  - 10.1002/mabi.201100127
ER  - 

@article{
author = "Miletic, Nemanja and Vuković, Zorica and Nastasović, Aleksandra and Loos, Katja",
year = "2011",
abstract = "A series of poly(GMA-co-EGDMA) resins with identical composition but varying particle sizes, pore radii, specific surface areas and specific volumes are studied to assess how Candida antarctica lipase B immobilization affects the porosity of the copolymer particles. Mercury porosimetry reveals a significant change in the average pore size (up to 6.1-fold), the specific surface area (up to 3.2-fold) and the specific volume (up to 2.1-fold) of the epoxy resin. A similar behaviour is observed for glutaraldehyde-modified epoxy resins. The influences of the resin porosity properties on the loading of Candida antarctica lipase B during immobilization and on the hydrolytic activity (hydrolysis of p-nitrophenyl acetate) of the immobilized lipase are studied.",
publisher = "Wiley-V C H Verlag Gmbh, Weinheim",
journal = "Macromolecular Bioscience",
title = "Effect of Candida antarctica Lipase B Immobilization on the Porous Structure of the Carrier",
volume = "11",
number = "11",
pages = "1537-1543",
doi = "10.1002/mabi.201100127"
}

Miletic, N., Vuković, Z., Nastasović, A.,& Loos, K.. (2011). Effect of Candida antarctica Lipase B Immobilization on the Porous Structure of the Carrier. in Macromolecular Bioscience
Wiley-V C H Verlag Gmbh, Weinheim., 11(11), 1537-1543.
https://doi.org/10.1002/mabi.201100127

Miletic N, Vuković Z, Nastasović A, Loos K. Effect of Candida antarctica Lipase B Immobilization on the Porous Structure of the Carrier. in Macromolecular Bioscience. 2011;11(11):1537-1543.
doi:10.1002/mabi.201100127 .

Miletic, Nemanja, Vuković, Zorica, Nastasović, Aleksandra, Loos, Katja, "Effect of Candida antarctica Lipase B Immobilization on the Porous Structure of the Carrier" in Macromolecular Bioscience, 11, no. 11 (2011):1537-1543,
https://doi.org/10.1002/mabi.201100127 . .