Kamaruddin, Kamaruddin and Sriyanti, Ida and Edikresnha, Dhewa and Munir, Muhammad Miftahul and Khairurrijal, Khairurrijal (2020) Electrosprayed Polyvinylpyrrolidone (PVP) Submicron Particles Loaded by Green Tea Extracts (Peer review). Universitas Negeri Padang. (Unpublished)
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Abstract
Electrospraying technique has been successfully used to synthesize composite submicron particles of polyvinylpyrrolidone (PVP) and green tea extract (GTE). The precursor solutions were PVP in ethanol (15 wt%) and GTE in ethanol (10 wt%), which were then mixed at varying ratio. The mixed solution then underwent electrospraying process at an applied voltage of 15 kV, a distance of collector to the nozzle at 15 cm, and a flow rate of 3 µL/min. The composite submicron particles of PVP-GTE showed smooth and fine spherical morphology without fibers or beaded fibers. To a certain degree, the increase of GTE content in the PVP-GTE mixed solution decreased the average diameter of PVP-GTE composite particles. Moreover, the analysis of the FTIR spectra confirmed the existing molecular interaction between PVP and GTE in the composite submicron particles as shown by the shift of PVP wavenumber towards GTE, which has typically smaller wavenumber.
| Item Type: | Other |
|---|---|
| Subjects: | L Education > L Education (General) > L7-991 Education (General) Q Science > QC Physics > QC1-999 Physics |
| Divisions: | 06-Faculty of Education and Educational Science > 84103-Physics Education (S2) |
| Depositing User: | Dr Ida Sriyanti, M.Si |
| Date Deposited: | 21 Mar 2021 14:44 |
| Last Modified: | 21 Mar 2021 14:44 |
| URI: | http://repository.unsri.ac.id/id/eprint/44004 |
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