Fluorescence microscopy and photodielectric characterization studies of the composite films of polyvinyl alcohol and tryptophan functionalized silver nanoparticles
Samo za registrovane korisnike
2022
Autori
Božanić, Dušan K.Dojčilović, Radovan
Pajović, Jelena D.
Tošić, Dragana
Dudić, Duško
Réfrégiers, Matthieu
Đoković, Vladimir
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
Fluorescent nanocomposite films were prepared by solution mixing of polyvinyl alcohol (PVA) and tryptophan functionalized silver (AgTrp) nanoparticles. Synchrotron excitation deep-ultraviolet (DUV) fluorescence imaging was used to follow the distribution of AgTrp nanoparticles within the polymer matrix. Pronounced growth of dendrite-like structures in the presence of AgTrp nanoparticles was confirmed by bright field and fluorescence imaging as well as with atomic force microscopies. Both tryptophan and AgTrp nanoparticles influence thermal properties of the matrix. Differential scanning calorimetry measurements showed that they reduce crystallinity and significantly increase the glass transition temperature of PVA (in the case of PVA-AgTrp film the Tg increases by ~20 °C). Dielectric properties of the films were studied under two different conditions (dark and illumination). The illumination with 250 nm light induces a significant increase in conductance of the PVA-AgTrp nanocomposite.... The relative changes, with respect to the conductance measured in the dark, were almost ~200%.
Ključne reči:
Ag / Fluorescent imaging / Nanocomposite / Photodielectric / PVA / TryptophanIzvor:
Colloids and Surfaces. A: Physicochemical and Engineering Aspects, 2022, 634, 128050-Finansiranje / projekti:
- Ministry of Education, Science and Technological Development of the Republic of Serbia
- SOLEIL [20120810]
DOI: 10.1016/j.colsurfa.2021.128050
ISSN: 0927-7757
WoS: 000768793900025
Scopus: 2-s2.0-85120808982
Kolekcije
Institucija/grupa
VinčaTY - JOUR AU - Božanić, Dušan K. AU - Dojčilović, Radovan AU - Pajović, Jelena D. AU - Tošić, Dragana AU - Dudić, Duško AU - Réfrégiers, Matthieu AU - Đoković, Vladimir PY - 2022 UR - https://vinar.vin.bg.ac.rs/handle/123456789/10076 AB - Fluorescent nanocomposite films were prepared by solution mixing of polyvinyl alcohol (PVA) and tryptophan functionalized silver (AgTrp) nanoparticles. Synchrotron excitation deep-ultraviolet (DUV) fluorescence imaging was used to follow the distribution of AgTrp nanoparticles within the polymer matrix. Pronounced growth of dendrite-like structures in the presence of AgTrp nanoparticles was confirmed by bright field and fluorescence imaging as well as with atomic force microscopies. Both tryptophan and AgTrp nanoparticles influence thermal properties of the matrix. Differential scanning calorimetry measurements showed that they reduce crystallinity and significantly increase the glass transition temperature of PVA (in the case of PVA-AgTrp film the Tg increases by ~20 °C). Dielectric properties of the films were studied under two different conditions (dark and illumination). The illumination with 250 nm light induces a significant increase in conductance of the PVA-AgTrp nanocomposite. The relative changes, with respect to the conductance measured in the dark, were almost ~200%. T2 - Colloids and Surfaces. A: Physicochemical and Engineering Aspects T1 - Fluorescence microscopy and photodielectric characterization studies of the composite films of polyvinyl alcohol and tryptophan functionalized silver nanoparticles VL - 634 SP - 128050 DO - 10.1016/j.colsurfa.2021.128050 ER -
@article{ author = "Božanić, Dušan K. and Dojčilović, Radovan and Pajović, Jelena D. and Tošić, Dragana and Dudić, Duško and Réfrégiers, Matthieu and Đoković, Vladimir", year = "2022", abstract = "Fluorescent nanocomposite films were prepared by solution mixing of polyvinyl alcohol (PVA) and tryptophan functionalized silver (AgTrp) nanoparticles. Synchrotron excitation deep-ultraviolet (DUV) fluorescence imaging was used to follow the distribution of AgTrp nanoparticles within the polymer matrix. Pronounced growth of dendrite-like structures in the presence of AgTrp nanoparticles was confirmed by bright field and fluorescence imaging as well as with atomic force microscopies. Both tryptophan and AgTrp nanoparticles influence thermal properties of the matrix. Differential scanning calorimetry measurements showed that they reduce crystallinity and significantly increase the glass transition temperature of PVA (in the case of PVA-AgTrp film the Tg increases by ~20 °C). Dielectric properties of the films were studied under two different conditions (dark and illumination). The illumination with 250 nm light induces a significant increase in conductance of the PVA-AgTrp nanocomposite. The relative changes, with respect to the conductance measured in the dark, were almost ~200%.", journal = "Colloids and Surfaces. A: Physicochemical and Engineering Aspects", title = "Fluorescence microscopy and photodielectric characterization studies of the composite films of polyvinyl alcohol and tryptophan functionalized silver nanoparticles", volume = "634", pages = "128050", doi = "10.1016/j.colsurfa.2021.128050" }
Božanić, D. K., Dojčilović, R., Pajović, J. D., Tošić, D., Dudić, D., Réfrégiers, M.,& Đoković, V.. (2022). Fluorescence microscopy and photodielectric characterization studies of the composite films of polyvinyl alcohol and tryptophan functionalized silver nanoparticles. in Colloids and Surfaces. A: Physicochemical and Engineering Aspects, 634, 128050. https://doi.org/10.1016/j.colsurfa.2021.128050
Božanić DK, Dojčilović R, Pajović JD, Tošić D, Dudić D, Réfrégiers M, Đoković V. Fluorescence microscopy and photodielectric characterization studies of the composite films of polyvinyl alcohol and tryptophan functionalized silver nanoparticles. in Colloids and Surfaces. A: Physicochemical and Engineering Aspects. 2022;634:128050. doi:10.1016/j.colsurfa.2021.128050 .
Božanić, Dušan K., Dojčilović, Radovan, Pajović, Jelena D., Tošić, Dragana, Dudić, Duško, Réfrégiers, Matthieu, Đoković, Vladimir, "Fluorescence microscopy and photodielectric characterization studies of the composite films of polyvinyl alcohol and tryptophan functionalized silver nanoparticles" in Colloids and Surfaces. A: Physicochemical and Engineering Aspects, 634 (2022):128050, https://doi.org/10.1016/j.colsurfa.2021.128050 . .