| Title: | Hydrophilization of rice seeds by plasma treatments – super-hydrophilic surface finish and hydrophobic recovery |
|---|
| Authors: | ID Vesel, Alenka, Institut "Jožef Stefan" (Author)
ID Macovei, Anca (Author)
ID Balestrazzi, Alma (Author)
ID Lojen, Dane, Institut "Jožef Stefan" (Author)
ID Primc, Gregor (Author)
ID Zaplotnik, Rok, Institut "Jožef Stefan" (Author)
ID Ogrinc, Nives, Institut "Jožef Stefan" (Author)
ID Lehocký, Marián (Author)
ID Mozetič, Miran, Institut "Jožef Stefan" (Author) |
|---|
| Files: |  URL - Source URL, visit https://www.sciencedirect.com/science/article/pii/S0169433225003885?via%3Dihub
 PDF - Presentation file, download (13,19 MB)
MD5: 6E1B1BEC0D34524C2C3632B90E107068
|
|---|
| Language: | English |
|---|
| Typology: | 1.01 - Original Scientific Article |
|---|
| Organization: |  IJS - Jožef Stefan Institute
|
|---|
| Abstract: | The hydrophobic character of rice seeds protects them from quick water adsorption and, thus, premature germination. This property is, however, a drawback in modern agriculture, where rapid and uniform germination represents a high-quality trait. A method for rapid hydrophilization of the Lomello variety of rice is presented. The rice seeds were treated with low-pressure gaseous plasma to tailor the wettability. The treatment of seeds with hulls with oxygen plasma afterglow enabled the super-hydrophilic surface finish within 10 ms. Such extremely fast hydrophilization was attributed to irreversible surface oxidation by neutral oxygen atoms whose flux onto the seeds was approximately 3 × 1023 m−2s−1. Dehulled seeds were made super-hydrophilic by subsequent treatments with hydrogen and oxygen plasma, and the required dose of O atoms was between 2 × 1023 and 6 × 1024 m−2. Larger doses caused a loss of the super-hydrophilicity. Hydrophilization kinetics is proposed and supported by measuring surface wettability, morphology, and composition using various techniques. The hydrophobic recovery of seeds with hulls is marginal within the first few days after plasma treatments, but dehulled seeds lose the super-hydrophilic surface finish within a few minutes after the plasma treatment when stored at ambient conditions. |
|---|
| Keywords: | rice seed, water adsorption, surface treatment, wettability, super-hydrophilicity |
|---|
| Publication status: | Published |
|---|
| Publication version: | Version of Record |
|---|
| Submitted for review: | 22.12.2024 |
|---|
| Article acceptance date: | 11.02.2025 |
|---|
| Publication date: | 11.02.2025 |
|---|
| Publisher: | Elsevier |
|---|
| Year of publishing: | 2025 |
|---|
| Number of pages: | str. 1-12 |
|---|
| Numbering: | Vol. 691, [article no.] 162674 |
|---|
| Source: | Nizozemska |
|---|
| PID: | 20.500.12556/DiRROS-24054  |
|---|
| UDC: | 60 |
|---|
| ISSN on article: | 1873-5584 |
|---|
| DOI: | 10.1016/j.apsusc.2025.162674 |
|---|
| COBISS.SI-ID: | 226439939 |
|---|
| Copyright: | © 2025 The Authors. |
|---|
| Note: | Nasl. z nasl. zaslona;
Soavtorji iz Slovenije: Dane Lojen, Gregor Primc, Rok Zaplotnik, Nives Ogrinc, Miran Mozetič;
Opis vira z dne 18. 2. 2025;
|
|---|
| Publication date in DiRROS: | 10.11.2025 |
|---|
| Views: | 168 |
|---|
| Downloads: | 82 |
|---|
| Metadata: |    |
|---|
|
:
|
Copy citation |
|---|
| | | | Share: |  |
|---|
Hover the mouse pointer over a document title to show the abstract or click
on the title to get all document metadata. |
