Natural hierarchical structures and their replication

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24210%2F19%3A00006537" target="_blank" >RIV/46747885:24210/19:00006537 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.nanocon.eu/files/uploads/01/NANOCON2018" target="_blank" >https://www.nanocon.eu/files/uploads/01/NANOCON2018</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Natural hierarchical structures and their replication

Popis výsledku v původním jazyce

Hierarchical plant surface structures show many characteristics that are an inspiration for humans. They are associated with the process of photosynthesis and provide a hydrophobic or a hydrophilic behaviour, an absorption of solar radiation, etc. Due to evaluation of synthetic analogical structures we are able to obtain important information about their potential applicability in a technical practice. The easiest way to prepare them is a two-stage replication process. This process involves the creation of the so-called first replica, that is the mould for the second replica-the "copy" of natural surface. Replicas can be made from various types of polymers. The aim of the paper is to compare the influence of different types of polymers on the character and quality of synthetic structures-replicas. A hierarchical structure of the pansy flower (Viola x wittrockiana) was selected as a replication pattern. The silicone elastomer President Light Body (Coltene Wahledent, Hamburg, Germany) was used for the first (negative) replicas preparation. Thermoset (EP), thermoplastic (HDPE), biodegradable polymers (PCL, PLA), as well as aqueous (PVA) and alcoholic polymer solutions (PVB) were used to create the second (positive) replicas. Replicas quality was evaluated by scanning electron microscopy (Carl Zeiss ULTRA Plus) and by contact angle measuring (See System E). Different hierarchical surface structures and different contact angles were identified according to types of polymers (amorphous, semi-crystalline, chemical composition) and used technology of replication. Easy, fast and a low cost replication process can be used for copying structures up to hundreds/tens of nanometers

Název v anglickém jazyce

Natural hierarchical structures and their replication

Popis výsledku anglicky

Hierarchical plant surface structures show many characteristics that are an inspiration for humans. They are associated with the process of photosynthesis and provide a hydrophobic or a hydrophilic behaviour, an absorption of solar radiation, etc. Due to evaluation of synthetic analogical structures we are able to obtain important information about their potential applicability in a technical practice. The easiest way to prepare them is a two-stage replication process. This process involves the creation of the so-called first replica, that is the mould for the second replica-the "copy" of natural surface. Replicas can be made from various types of polymers. The aim of the paper is to compare the influence of different types of polymers on the character and quality of synthetic structures-replicas. A hierarchical structure of the pansy flower (Viola x wittrockiana) was selected as a replication pattern. The silicone elastomer President Light Body (Coltene Wahledent, Hamburg, Germany) was used for the first (negative) replicas preparation. Thermoset (EP), thermoplastic (HDPE), biodegradable polymers (PCL, PLA), as well as aqueous (PVA) and alcoholic polymer solutions (PVB) were used to create the second (positive) replicas. Replicas quality was evaluated by scanning electron microscopy (Carl Zeiss ULTRA Plus) and by contact angle measuring (See System E). Different hierarchical surface structures and different contact angles were identified according to types of polymers (amorphous, semi-crystalline, chemical composition) and used technology of replication. Easy, fast and a low cost replication process can be used for copying structures up to hundreds/tens of nanometers

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20903 - Bioproducts (products that are manufactured using biological material as feedstock) biomaterials, bioplastics, biofuels, bioderived bulk and fine chemicals, bio-derived novel materials

Projekt

<a href="/cs/project/EF16_019%2F0000843" target="_blank" >EF16_019/0000843: Hybridní materiály pro hierarchické struktury</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

NANOCON 2018 - Conference Proceedings, 10th Anniversary International Conference on Nanomaterials - Research and Applicatio

ISBN

9788087294895

ISSN

2369-8128

e-ISSN

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Počet stran výsledku

6

Strana od-do

306-311

Název nakladatele

TANGER Ltd.

Místo vydání

Ostrava

Místo konání akce

Brno

Datum konání akce

1. 1. 2018

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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