TY  - JOUR
AU  - Balasubramanian, P.
AU  - Hupa, L.
AU  - Jokić, B.
AU  - Detsch, R.
AU  - Grünewald, A.
AU  - Boccaccini, Aldo R.
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5820
AB  - Boron-containing bioactive glasses (BGs) are being extensively researched for the treatment and regeneration of bone defects because of their osteostimulatory and neovascularization potential. In this study, we report the effects of the ionic dissolution products (IDPs) of different boron-doped, borosilicate, and borate BG scaffolds on mouse bone marrow stromal cells in vitro, using an angiogenesis assay. Five different BG scaffolds of the system SiO2–Na2O–K2O–MgO–CaO–P2O5–B2O3 (with varying amounts of SiO2 and B2O3) were fabricated by the foam replication technique. Bone marrow stromal cells were cultivated in contact with the IDPs of the boron-containing BG scaffolds at different concentrations for 48 h. The expression and secretion of vascular endothelial growth factor (VEGF) from the cultured cells was measured quantitatively using the VEGF ELISA Kit. Cell viability and cell morphology were determined using WST-8 assay and H&E staining, respectively. The cellular response was found to be dependent on boron content and the B release profile from the glasses corresponded to the positive or negative biological activity of the BGs.
PB  - Springer New York LLC
T2  - Journal of Materials Science
T1  - Angiogenic potential of boron-containing bioactive glasses: in vitro study
EP  - 8792
IS  - 15
SP  - 8785
VL  - 52
DO  - 10.1007/s10853-016-0563-7
ER  - 

@article{
author = "Balasubramanian, P. and Hupa, L. and Jokić, B. and Detsch, R. and Grünewald, A. and Boccaccini, Aldo R.",
year = "2017",
abstract = "Boron-containing bioactive glasses (BGs) are being extensively researched for the treatment and regeneration of bone defects because of their osteostimulatory and neovascularization potential. In this study, we report the effects of the ionic dissolution products (IDPs) of different boron-doped, borosilicate, and borate BG scaffolds on mouse bone marrow stromal cells in vitro, using an angiogenesis assay. Five different BG scaffolds of the system SiO2–Na2O–K2O–MgO–CaO–P2O5–B2O3 (with varying amounts of SiO2 and B2O3) were fabricated by the foam replication technique. Bone marrow stromal cells were cultivated in contact with the IDPs of the boron-containing BG scaffolds at different concentrations for 48 h. The expression and secretion of vascular endothelial growth factor (VEGF) from the cultured cells was measured quantitatively using the VEGF ELISA Kit. Cell viability and cell morphology were determined using WST-8 assay and H&E staining, respectively. The cellular response was found to be dependent on boron content and the B release profile from the glasses corresponded to the positive or negative biological activity of the BGs.",
publisher = "Springer New York LLC",
journal = "Journal of Materials Science",
title = "Angiogenic potential of boron-containing bioactive glasses: in vitro study",
pages = "8792-8785",
number = "15",
volume = "52",
doi = "10.1007/s10853-016-0563-7"
}

Balasubramanian, P., Hupa, L., Jokić, B., Detsch, R., Grünewald, A.,& Boccaccini, A. R.. (2017). Angiogenic potential of boron-containing bioactive glasses: in vitro study. in Journal of Materials Science
Springer New York LLC., 52(15), 8785-8792.
https://doi.org/10.1007/s10853-016-0563-7

Balasubramanian P, Hupa L, Jokić B, Detsch R, Grünewald A, Boccaccini AR. Angiogenic potential of boron-containing bioactive glasses: in vitro study. in Journal of Materials Science. 2017;52(15):8785-8792.
doi:10.1007/s10853-016-0563-7 .

Balasubramanian, P., Hupa, L., Jokić, B., Detsch, R., Grünewald, A., Boccaccini, Aldo R., "Angiogenic potential of boron-containing bioactive glasses: in vitro study" in Journal of Materials Science, 52, no. 15 (2017):8785-8792,
https://doi.org/10.1007/s10853-016-0563-7 . .

TY  - JOUR
AU  - Validžić, I.Lj.
AU  - Mitrić, M.
AU  - Abazović, N.D.
AU  - Jokić, B.M.
AU  - Milošević, A.S.
AU  - Popović, Z.S.
AU  - Vukajlović, F.R.
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5801
AB  - We report a simple colloidal synthesis of two types of Sb2S 3 nanowires with small band gap and high aspect ratio. Field-emission scanning electron and transmission electron microscopies confirmed formation of high aspect ratio Sb2S3 nanowires, separated in the form of bundles and coalesced with each other in long bars. Diffuse reflectance and absorption spectroscopies revealed that the optical band-gap energies of the synthesized nanowires separated in the form of bundles are 1.56 and 1.59 eV, and coalesced with each other in long bars are 1.36 and 1.28 eV, respectively. The structure refinement showed that Sb2S3 powders belong to the orthorhombic structure with space group Pnma (no. 62). It was found that Sb2S3 nanowires separated in the form of bundles predominantly grow along the [0 1 0] direction being in the needle-like shape. The nanowires coalesced with each other in long bars rise in the form of long bars, are ribbon-like in shape and have expressed {1 0 1} facets which grow along the [0 1 0] direction. No peaks in photoluminescence spectra were observed in the spectral range from 250 to 600 nm. In order to shed more light on the experimental results concerning the band-gap energies and, in the literature generally poorly investigated electronic properties of the synthesized material, we performed theoretical calculations of the electronic structure and optical properties of the Sb2S3 samples synthesized here. This was done on the basis of density functional theory with the generalized gradient approximation, and also with an improved version of the exchange potential suggested recently by Tran and Blaha. The main characteristic is the significant improvement of the band gap value.
PB  - IOP Publishing Ltd.
T2  - Semiconductor Science and Technology
T1  - Structural analysis, electronic and optical properties of the synthesized Sb2S3 nanowires with small band gap
IS  - 3
SP  - 035007
VL  - 29
DO  - 10.1088/0268-1242/29/3/035007
ER  - 

@article{
author = "Validžić, I.Lj. and Mitrić, M. and Abazović, N.D. and Jokić, B.M. and Milošević, A.S. and Popović, Z.S. and Vukajlović, F.R.",
year = "2014",
abstract = "We report a simple colloidal synthesis of two types of Sb2S 3 nanowires with small band gap and high aspect ratio. Field-emission scanning electron and transmission electron microscopies confirmed formation of high aspect ratio Sb2S3 nanowires, separated in the form of bundles and coalesced with each other in long bars. Diffuse reflectance and absorption spectroscopies revealed that the optical band-gap energies of the synthesized nanowires separated in the form of bundles are 1.56 and 1.59 eV, and coalesced with each other in long bars are 1.36 and 1.28 eV, respectively. The structure refinement showed that Sb2S3 powders belong to the orthorhombic structure with space group Pnma (no. 62). It was found that Sb2S3 nanowires separated in the form of bundles predominantly grow along the [0 1 0] direction being in the needle-like shape. The nanowires coalesced with each other in long bars rise in the form of long bars, are ribbon-like in shape and have expressed {1 0 1} facets which grow along the [0 1 0] direction. No peaks in photoluminescence spectra were observed in the spectral range from 250 to 600 nm. In order to shed more light on the experimental results concerning the band-gap energies and, in the literature generally poorly investigated electronic properties of the synthesized material, we performed theoretical calculations of the electronic structure and optical properties of the Sb2S3 samples synthesized here. This was done on the basis of density functional theory with the generalized gradient approximation, and also with an improved version of the exchange potential suggested recently by Tran and Blaha. The main characteristic is the significant improvement of the band gap value.",
publisher = "IOP Publishing Ltd.",
journal = "Semiconductor Science and Technology",
title = "Structural analysis, electronic and optical properties of the synthesized Sb2S3 nanowires with small band gap",
number = "3",
pages = "035007",
volume = "29",
doi = "10.1088/0268-1242/29/3/035007"
}

Validžić, I.Lj., Mitrić, M., Abazović, N.D., Jokić, B.M., Milošević, A.S., Popović, Z.S.,& Vukajlović, F.R.. (2014). Structural analysis, electronic and optical properties of the synthesized Sb2S3 nanowires with small band gap. in Semiconductor Science and Technology
IOP Publishing Ltd.., 29(3), 035007.
https://doi.org/10.1088/0268-1242/29/3/035007

Validžić I, Mitrić M, Abazović N, Jokić B, Milošević A, Popović Z, Vukajlović F. Structural analysis, electronic and optical properties of the synthesized Sb2S3 nanowires with small band gap. in Semiconductor Science and Technology. 2014;29(3):035007.
doi:10.1088/0268-1242/29/3/035007 .

Validžić, I.Lj., Mitrić, M., Abazović, N.D., Jokić, B.M., Milošević, A.S., Popović, Z.S., Vukajlović, F.R., "Structural analysis, electronic and optical properties of the synthesized Sb2S3 nanowires with small band gap" in Semiconductor Science and Technology, 29, no. 3 (2014):035007,
https://doi.org/10.1088/0268-1242/29/3/035007 . .