TY  - JOUR
AU  - Lukić, Miodrag J.
AU  - Lücke, Felix
AU  - Ilić, Teodora
AU  - Petrović, Katharina
AU  - Gebauer, Denis
PY  - 2021
UR  - https://dais.sanu.ac.rs/123456789/11802
AB  - Nucleation of minerals in the presence of additives is critical for achieving control over the formation of solids in biomineralization processes or during syntheses of advanced hybrid materials. Herein, we investigated the early stages of Fe(III) (oxy)(hydr)oxide formation with/without polyglutamic acid (pGlu) at low driving force for phase separation (pH 2.0 to 3.0). We employed an advanced pH-constant titration assay, X-ray diffraction, thermal analysis with mass spectrometry, Fourier Transform infrared spectroscopy, and scanning electron microscopy. Three stages were observed: initial binding, stabilization of Fe(III) pre-nucleation clusters (PNCs), and phase separation, yielding Fe(III) (oxy)(hydr)oxide. The data suggest that organic–inorganic interactions occurred via binding of olation Fe(III) PNC species. Fourier Transform Infrared Spectroscopy (FTIR) analyses revealed a plausible interaction motif and a conformational adaptation of the polypeptide. The stabilization of the aqueous Fe(III) system against nucleation by pGlu contrasts with the previously reported influence of poly-aspartic acid (pAsp). While this is difficult to explain based on classical nucleation theory, alternative notions such as the so-called PNC pathway provide a possible rationale. Developing a nucleation theory that successfully explains and predicts distinct influences for chemically similar additives like pAsp and pGlu is the Holy Grail toward advancing the knowledge of nucleation, early growth, and structure formation.
PB  - Basel : MDPI AG
T2  - Minerals
T1  - On the Role of Poly-Glutamic Acid in the Early Stages of Iron(III) (Oxy)(hydr)oxide Formation
SP  - 715
VL  - 11
IS  - 7
DO  - 10.3390/min11070715
UR  - https://hdl.handle.net/21.15107/rcub_dais_11802
ER  - 

@article{
author = "Lukić, Miodrag J. and Lücke, Felix and Ilić, Teodora and Petrović, Katharina and Gebauer, Denis",
year = "2021",
abstract = "Nucleation of minerals in the presence of additives is critical for achieving control over the formation of solids in biomineralization processes or during syntheses of advanced hybrid materials. Herein, we investigated the early stages of Fe(III) (oxy)(hydr)oxide formation with/without polyglutamic acid (pGlu) at low driving force for phase separation (pH 2.0 to 3.0). We employed an advanced pH-constant titration assay, X-ray diffraction, thermal analysis with mass spectrometry, Fourier Transform infrared spectroscopy, and scanning electron microscopy. Three stages were observed: initial binding, stabilization of Fe(III) pre-nucleation clusters (PNCs), and phase separation, yielding Fe(III) (oxy)(hydr)oxide. The data suggest that organic–inorganic interactions occurred via binding of olation Fe(III) PNC species. Fourier Transform Infrared Spectroscopy (FTIR) analyses revealed a plausible interaction motif and a conformational adaptation of the polypeptide. The stabilization of the aqueous Fe(III) system against nucleation by pGlu contrasts with the previously reported influence of poly-aspartic acid (pAsp). While this is difficult to explain based on classical nucleation theory, alternative notions such as the so-called PNC pathway provide a possible rationale. Developing a nucleation theory that successfully explains and predicts distinct influences for chemically similar additives like pAsp and pGlu is the Holy Grail toward advancing the knowledge of nucleation, early growth, and structure formation.",
publisher = "Basel : MDPI AG",
journal = "Minerals",
title = "On the Role of Poly-Glutamic Acid in the Early Stages of Iron(III) (Oxy)(hydr)oxide Formation",
pages = "715",
volume = "11",
number = "7",
doi = "10.3390/min11070715",
url = "https://hdl.handle.net/21.15107/rcub_dais_11802"
}

Lukić, M. J., Lücke, F., Ilić, T., Petrović, K.,& Gebauer, D.. (2021). On the Role of Poly-Glutamic Acid in the Early Stages of Iron(III) (Oxy)(hydr)oxide Formation. in Minerals
Basel : MDPI AG., 11(7), 715.
https://doi.org/10.3390/min11070715
https://hdl.handle.net/21.15107/rcub_dais_11802

Lukić MJ, Lücke F, Ilić T, Petrović K, Gebauer D. On the Role of Poly-Glutamic Acid in the Early Stages of Iron(III) (Oxy)(hydr)oxide Formation. in Minerals. 2021;11(7):715.
doi:10.3390/min11070715
https://hdl.handle.net/21.15107/rcub_dais_11802 .

Lukić, Miodrag J., Lücke, Felix, Ilić, Teodora, Petrović, Katharina, Gebauer, Denis, "On the Role of Poly-Glutamic Acid in the Early Stages of Iron(III) (Oxy)(hydr)oxide Formation" in Minerals, 11, no. 7 (2021):715,
https://doi.org/10.3390/min11070715 .,
https://hdl.handle.net/21.15107/rcub_dais_11802 .