Biocompatible nanostructured solid adhesives for biological soft tissues

Masahiro Okada, Akira Nakai, Emilio satoshi Hara, Tetsushi Taguchi, Takayoshi Nakano, Takuya Matsumoto

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Over the past few years, the development of novel adhesives for biological soft tissue adhesion has gained significant interest. Such adhesives should be non-toxic and biocompatible. In this study, we synthesized a novel solid adhesive using nanostructured hydroxyapatite (HAp) and evaluated its physical adhesion properties through in vitro testing with synthetic hydrogels and mouse soft tissues. The results revealed that HAp-nanoparticle dispersions and HAp-nanoparticle-assembled nanoporous plates showed efficient adhesion to hydrogels. Interestingly, the HAp plates showed different adhesive properties depending upon the shape of their nanoparticles. The HAp plate made up of 17 nm-sized nanoparticles showed an adhesive strength 2.2 times higher than that of the conventional fibrin glue for mouse skin tissues. Statement of Significance The present study indicates a new application of inorganic biomaterials (bioceramics) as a soft tissue adhesive. Organic adhesives such as fibrin glues or cyanoacrylate derivatives have been commonly used clinically. However, their limited biocompatibility and/or low adhesion strength are some drawbacks that impair their clinical application. In this study, we synthesized a novel solid adhesive with biocompatible and biodegradable HAp nanoparticles without the aid of organic molecules, and showed a rapid and strong adhesion of mouse soft tissues compared to conventional fibrin glues. Given the importance of wet adhesion in biomedicine and biotechnology applications, our results will help not only in developing an efficient approach to close incised soft tissues, but also in finding novel ways to integrate soft tissues with synthetic hydrogels (such as drug reservoirs).

Original languageEnglish
Pages (from-to)404-413
Number of pages10
JournalActa Biomaterialia
Volume57
DOIs
Publication statusPublished - Jul 15 2017

Fingerprint

Adhesives
Durapatite
Hydroxyapatite
Tissue
Nanoparticles
Adhesion
Fibrin Tissue Adhesive
Hydrogels
Glues
Tissue Adhesions
Tissue Adhesives
Cyanoacrylates
Bioceramics
Bond strength (materials)
Biocompatible Materials
Biotechnology
Dispersions
Biocompatibility
Biomaterials
Skin

Keywords

  • Hydroxyapatite
  • Nanoparticle
  • Solid adhesive
  • Wet adhesion

ASJC Scopus subject areas

  • Biotechnology
  • Biochemistry
  • Biomaterials
  • Biomedical Engineering
  • Molecular Biology

Cite this

Biocompatible nanostructured solid adhesives for biological soft tissues. / Okada, Masahiro; Nakai, Akira; Hara, Emilio satoshi; Taguchi, Tetsushi; Nakano, Takayoshi; Matsumoto, Takuya.

In: Acta Biomaterialia, Vol. 57, 15.07.2017, p. 404-413.

Research output: Contribution to journalArticle

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