Cross-linked gelatine by modified dextran as a potential bioink prepared by a simple and non-toxic process

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F22%3A63550758" target="_blank" >RIV/70883521:28110/22:63550758 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/70883521:28140/22:63550758 RIV/70883521:28610/22:63550758

Výsledek na webu

<a href="https://www.mdpi.com/2073-4360/14/3/391" target="_blank" >https://www.mdpi.com/2073-4360/14/3/391</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/polym14030391" target="_blank" >10.3390/polym14030391</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Cross-linked gelatine by modified dextran as a potential bioink prepared by a simple and non-toxic process

Popis výsledku v původním jazyce

Essential features of well-designed materials intended for 3D bioprinting via microex-trusion are the appropriate rheological behavior and cell-friendly environment. Despite the rapid development, few materials are utilizable as bioinks. The aim of our work was to design a novel cytocompatible material facilitating extrusion-based 3D printing while maintaining a relatively simple and straightforward preparation process without the need for harsh chemicals or radiation. Specifically, hydrogels were prepared from gelatines coming from three sources—bovine, rabbit, and chicken—cross-linked by dextran polyaldehyde. The influence of dextran concentration on the properties of hydrogels was studied. Rheological measurements not only confirmed the strong shear-thinning behavior of prepared inks but were also used for capturing cross-linking reaction kinetics and demonstrated quick achievement of gelation point (in most cases &lt; 3 min). Their viscoelastic properties allowed satisfactory extrusion, forming a self-supported multi-layered uniformly porous structure. All gelatin-based hydrogels were non-cytototoxic. Homogeneous cells distribution within the printed scaffold was confirmed by fluorescence confocal microscopy. In addition, no disruption of cells structure was observed. The results demonstrate the great potential of the presented hydrogels for applications related to 3D bioprinting.

Název v anglickém jazyce

Cross-linked gelatine by modified dextran as a potential bioink prepared by a simple and non-toxic process

Popis výsledku anglicky

Essential features of well-designed materials intended for 3D bioprinting via microex-trusion are the appropriate rheological behavior and cell-friendly environment. Despite the rapid development, few materials are utilizable as bioinks. The aim of our work was to design a novel cytocompatible material facilitating extrusion-based 3D printing while maintaining a relatively simple and straightforward preparation process without the need for harsh chemicals or radiation. Specifically, hydrogels were prepared from gelatines coming from three sources—bovine, rabbit, and chicken—cross-linked by dextran polyaldehyde. The influence of dextran concentration on the properties of hydrogels was studied. Rheological measurements not only confirmed the strong shear-thinning behavior of prepared inks but were also used for capturing cross-linking reaction kinetics and demonstrated quick achievement of gelation point (in most cases &lt; 3 min). Their viscoelastic properties allowed satisfactory extrusion, forming a self-supported multi-layered uniformly porous structure. All gelatin-based hydrogels were non-cytototoxic. Homogeneous cells distribution within the printed scaffold was confirmed by fluorescence confocal microscopy. In addition, no disruption of cells structure was observed. The results demonstrate the great potential of the presented hydrogels for applications related to 3D bioprinting.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10404 - Polymer science

Projekt

<a href="/cs/project/GA20-28732S" target="_blank" >GA20-28732S: Koloidní systémy pro topické formulace. Pickeringovy emulze a koloidy na bázi polymerů.</a><br>

Návaznosti

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

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Polymers

ISSN

2073-4360

e-ISSN

—

Svazek periodika

14

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

16

Strana od-do

nestrankovano

Kód UT WoS článku

000754557300001

EID výsledku v databázi Scopus

2-s2.0-85123200312