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Biomimetic Organic–Inorganic Composites
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Biomimetic Organic–Inorganic Composites

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Advanced Composites".

Deadline for manuscript submissions: closed (20 February 2022) | Viewed by 12601

Special Issue Editor

Dr. Maja Dutour Sikirić

E-Mail Website
Guest Editor
Laboratory for Biocolloids and Surface Chemistry, Division of Physical Chemistry, Ruđer Bošković Institute, Bijenička Cesta 54, 10000 Zagreb, Croatia
Interests: calcium phosphates; biomaterials; surfactants; nanomaterials; biomimetics; composite materials
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

In the world of increasing demand for novel, advanced materials, biomimetic organic–inorganic composites are emerging as promising materials for an increasing number of applications in biomedicine, pharmacy, photonics, catalysis, and environmental protection. Combining inspiration by natural materials, both in design and synthetic routes, with the newest developments not only in materials science, but also biology and nanotechnology, has opened a wide range of possibilities for tailoring materials properties while keeping them environmentally friendly and sustainable. The large variety of inorganic and organic materials that can be used in developing biomimetic organic–inorganic composites additionally contributes to their importance. However, despite the significant progress made in recent years, the rational design and synthesis of such materials can still present a challenge.

This Special Issue is dedicated to the recent developments in the field of biomimetic organic–inorganic composites, from fundamental understanding of functioning of natural materials and mechanisms of organic-inorganic interactions in complex systems, to advances in processing routes and development of multifunctional materials.

I cordially invite you to submit a manuscript for this Special Issue. Full papers, communications, and reviews are all welcome.

Dr. Maja Dutour Sikirić
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Materials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Biomimetics
  • Organic–inorganic composites
  • Organic–inorganic interactions
  • Biomaterials
  • Nanomaterials
  • Multifunctional materials
  • Drug delivery
  • Tissue engineering
  • Membranes
  • Biosensing
  • Biocatalysis
  • Coatings

Published Papers (5 papers)

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Editorial

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4 pages, 213 KiB  
Editorial
Special Issue: Biomimetic Organic–Inorganic Composites
by Maja Dutour Sikirić
Materials 2022, 15(9), 3074; https://0-doi-org.brum.beds.ac.uk/10.3390/ma15093074 - 23 Apr 2022
Viewed by 1286
Abstract
Throughout history, the welfare and prosperity of civilizations have depended on the development of novel, more advanced materials [...] Full article
(This article belongs to the Special Issue Biomimetic Organic–Inorganic Composites)

Research

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8 pages, 2097 KiB  
Communication
Bone Tissue Regeneration by Collagen Scaffolds with Different Calcium Phosphate Coatings: Amorphous Calcium Phosphate and Low-Crystalline Apatite
by Syama Santhakumar, Ayako Oyane, Maki Nakamura, Yuto Yoshino, Mohammed Katib Alruwaili and Hirofumi Miyaji
Materials 2021, 14(19), 5860; https://0-doi-org.brum.beds.ac.uk/10.3390/ma14195860 - 07 Oct 2021
Cited by 7 | Viewed by 2022
Abstract
Surface-mineralized collagen sponges have attracted much attention as scaffolds for bone tissue engineering. Recently, we developed amorphous calcium phosphate (ACP) and low-crystalline apatite coating processes on collagen sponges. In the present study, we applied these coating processes to granular collagen sponges (referred to [...] Read more.
Surface-mineralized collagen sponges have attracted much attention as scaffolds for bone tissue engineering. Recently, we developed amorphous calcium phosphate (ACP) and low-crystalline apatite coating processes on collagen sponges. In the present study, we applied these coating processes to granular collagen sponges (referred to as Col) to compare the bone tissue regeneration capabilities of ACP-coated and apatite-coated Col (referred to as Col-ACP and Col-Ap, respectively) using a rat cranial bone defect model. According to micro-CT and histological analyses, Col-Ap enhanced bone tissue regeneration compared to Col, whereas Col-ACP did not. These results not only demonstrated the superior bone tissue regeneration capability of Col-Ap, but also indicated limitations of the in vitro simulated body fluid (SBF) test used in our previous study. Despite the apatite-forming ability of Col-ACP in SBF, it was ineffective in improving bone tissue regeneration in vivo, unlike Col-Ap, most likely due to the quick resorption of the ACP coating in the defect site. The present results clarified the importance of the coating stability in vivo and revealed that the low-crystalline apatite coating was more beneficial than the ACP coating in the fabrication of surface-mineralized collagen sponges for use as bone tissue engineering scaffolds. Full article
(This article belongs to the Special Issue Biomimetic Organic–Inorganic Composites)
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19 pages, 18416 KiB  
Article
The Influence of Different Classes of Amino Acids on Calcium Phosphates Seeded Growth
by Tea Mihelj Josipović, Monika Kovačević, Sarah Mateša, Marina Kostešić, Nives Matijaković, Borna Radatović, Daniel M. Lyons, Damir Kralj and Maja Dutour Sikirić
Materials 2020, 13(21), 4798; https://0-doi-org.brum.beds.ac.uk/10.3390/ma13214798 - 27 Oct 2020
Cited by 4 | Viewed by 2445
Abstract
Amino acids (AAs) attract attention for elucidating the role of proteins in biomineralization and the preparation of functionalized biomaterials. The influence that AAs exert on calcium phosphate (CaP) mineralization is still not completely understood, as contradictory results have been reported. In this paper, [...] Read more.
Amino acids (AAs) attract attention for elucidating the role of proteins in biomineralization and the preparation of functionalized biomaterials. The influence that AAs exert on calcium phosphate (CaP) mineralization is still not completely understood, as contradictory results have been reported. In this paper, the influence of the addition of different classes of AAs, charged (L-aspartic acid, Asp; L-lysine, Lys), polar (L-asparagine, Asn; L-serine, Ser; L-tyrosine, Tyr), and non-polar (L-phenylalanine, Phe), on CaP growth in the presence of octacalcium phosphate (OCP) and calcium hydrogenphosphate dihydrate (DCPD) seeds was investigated. In control systems (without AAs), a calcium-deficient apatite (CaDHA) layer was formed on the surface of OCP, while a mixture of CaDHA and OCP in the form of spherical aggregates was formed on the surface of DCPD crystals. Charged and non-polar promoted, while polar AAs inhibited CaDHA formation on the OCP seeds. In the case of DCPD, Lys, Asp, and Phe promoted CaP formation, while the influence of other AAs was negligible. The most efficient promotor of precipitation in both cases was non-polar Phe. No significant influence of AAs on the composition and morphology of precipitates was observed. The obtained results are of interest for understanding biomineralization processes and additive controlled material synthesis. Full article
(This article belongs to the Special Issue Biomimetic Organic–Inorganic Composites)
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Review

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19 pages, 2507 KiB  
Review
Bioinspired Topographic Surface Modification of Biomaterials
by Santiago Arango-Santander
Materials 2022, 15(7), 2383; https://0-doi-org.brum.beds.ac.uk/10.3390/ma15072383 - 24 Mar 2022
Cited by 9 | Viewed by 2471
Abstract
Physical surface modification is an approach that has been investigated over the last decade to reduce bacterial adhesion and improve cell attachment to biomaterials. Many techniques have been reported to modify surfaces, including the use of natural sources as inspiration to fabricate topographies [...] Read more.
Physical surface modification is an approach that has been investigated over the last decade to reduce bacterial adhesion and improve cell attachment to biomaterials. Many techniques have been reported to modify surfaces, including the use of natural sources as inspiration to fabricate topographies on artificial surfaces. Biomimetics is a tool to take advantage of nature to solve human problems. Physical surface modification using animal and vegetal topographies as inspiration to reduce bacterial adhesion and improve cell attachment has been investigated in the last years, and the results have been very promising. However, just a few animal and plant surfaces have been used to modify the surface of biomaterials with these objectives, and only a small number of bacterial species and cell types have been tested. The purpose of this review is to present the most current results on topographic surface modification using animal and plant surfaces as inspiration to modify the surface of biomedical materials with the objective of reducing bacterial adhesion and improving cell behavior. Full article
(This article belongs to the Special Issue Biomimetic Organic–Inorganic Composites)
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26 pages, 5392 KiB  
Review
Hyaluronic-Acid-Based Organic-Inorganic Composites for Biomedical Applications
by Rebecca Sikkema, Blanca Keohan and Igor Zhitomirsky
Materials 2021, 14(17), 4982; https://0-doi-org.brum.beds.ac.uk/10.3390/ma14174982 - 31 Aug 2021
Cited by 12 | Viewed by 3505
Abstract
Applications of natural hyaluronic acid (HYH) for the fabrication of organic-inorganic composites for biomedical applications are described. Such composites combine unique functional properties of HYH with functional properties of hydroxyapatite, various bioceramics, bioglass, biocements, metal nanoparticles, and quantum dots. Functional properties of advanced [...] Read more.
Applications of natural hyaluronic acid (HYH) for the fabrication of organic-inorganic composites for biomedical applications are described. Such composites combine unique functional properties of HYH with functional properties of hydroxyapatite, various bioceramics, bioglass, biocements, metal nanoparticles, and quantum dots. Functional properties of advanced composite gels, scaffold materials, cements, particles, films, and coatings are described. Benefiting from the synergy of properties of HYH and inorganic components, advanced composites provide a platform for the development of new drug delivery materials. Many advanced properties of composites are attributed to the ability of HYH to promote biomineralization. Properties of HYH are a key factor for the development of colloidal and electrochemical methods for the fabrication of films and protective coatings for surface modification of biomedical implants and the development of advanced biosensors. Overcoming limitations of traditional materials, HYH is used as a biocompatible capping, dispersing, and structure-directing agent for the synthesis of functional inorganic materials and composites. Gel-forming properties of HYH enable a facile and straightforward approach to the fabrication of antimicrobial materials in different forms. Of particular interest are applications of HYH for the fabrication of biosensors. This review summarizes manufacturing strategies and mechanisms and outlines future trends in the development of functional biocomposites. Full article
(This article belongs to the Special Issue Biomimetic Organic–Inorganic Composites)
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