Biomimetic Diatom Biosilica and Its Potential for Biomedical Applications and Prospects: A Review.

Int J Mol Sci

Department of Biotechnology and Bioinformatics, Korea University, Sejong 30019, Republic of Korea.

Published: February 2024

Diatom biosilica is an important natural source of porous silica, with three-dimensional ordered and nanopatterned structures referred to as frustules. The unique features of diatom frustules, such as their high specific surface area, thermal stability, biocompatibility, and adaptable surface chemistry, render diatoms valuable materials for high value-added applications. These attributes make diatoms an exceptional cost-effective raw material for industrial use. The functionalization of diatom biosilica surface improves its biophysical properties and increases the potential applications. This review focuses on the potential uses of diatom biosilica including traditional approaches and recent progress in biomedical applications. Not only well-studied drug delivery systems but also promising uses on bone regeneration and wound healing are covered. Furthermore, considerable aspects and possible future directions for the use of diatom biosilica materials are proposed to develop biomedical applications and merit further exploration.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10889112PMC
http://dx.doi.org/10.3390/ijms25042023DOI Listing

Publication Analysis

Top Keywords

diatom biosilica
20
biomedical applications
12
biosilica
5
applications
5
diatom
5
biomimetic diatom
4
biosilica potential
4
potential biomedical
4
applications prospects
4
prospects review
4

Similar Publications

Fish scale gelatin/diatom biosilica composite hemostasis sponge with ultrafast dispersing and in situ gelation for hemorrhage control.

Int J Biol Macromol

January 2025

College of Marine Life Science, Ocean University of China, 5# Yushan Road, Qingdao 266003, Shandong Province, China; Sanya Oceanographic Institute, Ocean University of China, Floor 7, Building 1, Yonyou Industrial Park, Yazhou Bay Science & Technology City, Sanya, Hainan Province, China. Electronic address:

Rapid control of hemorrhage is vital in first-aid and surgery. As representative of emergency hemostatic materials, inorganic porous materials achieve rapid hemostasis through concentrating protein coagulation factors by water adsorption to accelerate the coagulation reaction process, however their efficacy is often limited by the insufficient contact of material with blood and the lack of blood clot strength. Herein, we report an ultrafast dispersing and in situ gelation sponge (SG/DB) based on anchoring interface effect for hemorrhage control using freeze drying method after mixing fish scale gel (SG) and tert-butyl alcohol (TBA) pre-crystallized diatom biosilica (DB).

View Article and Find Full Text PDF

The role of biosilica and its potential for sensing technologies: A review.

J Biotechnol

December 2024

Laboratory of Electrochemistry and Nanotechnology, Institute of Technology and Research (ITP), Aracaju, Sergipe, Brazil; Process Engineering Graduate Program (PEP), Tiradentes University, Aracaju, Sergipe, Brazil.

Efficiently managing agricultural waste while innovating to derive value-added products is a significant challenge in the 21st century. In recent decades, these by-products have been increasingly explored as alternative sources for materials such as biosilica. Biosilica is renowned for its high surface area, biocompatibility, chemical stability, and modifiable surface, which makes it suitable for various applications.

View Article and Find Full Text PDF

Diatom biosilica for liquid chromatography.

J Chromatogr A

January 2025

Nicolaus Copernicus University in Toruń, Interdisciplinary Centre of Modern Technologies, Wileńska 4, 87-100, Toruń, Poland; Nicolaus Copernicus University in Toruń, Faculty of Chemistry, Department of Environmental Chemistry and Bioanalytics, Gagarina 7, PL-87-100 Toruń, Poland; Prof. Jan Czochralski Kuyavian-Pomeranian Research & Development Centre, Krasińskiego Str. 4, 87-100 Toruń, Poland. Electronic address:

This work presents, for the first time, the preparation method and subsequent use of biosilica in column liquid chromatography in reverse-phase mode. Diatom biosilica consists of the siliceous exoskeletons (frustules) of unicellular algae. Controlled cultivation of Pseudostaurosira trainorii diatoms resulted in frustules with an average diameter of approximately 4 µm, sidewall thickness of 1 µm, and a bottom thickness of 110-150 nm.

View Article and Find Full Text PDF

Improving Recovery of Diatoms Bio-Silica Using Chemical Treatment with VAUS.

Materials (Basel)

November 2024

Department of Dentistry, College of Medicine, Ewha Womans University, Seoul 07804, Republic of Korea.

High-temperature baking is a typical method to remove organic matter from diatoms, but it is not suitable for bio-silica because of the high crystallinity. This study provides a method using the VAUS to remove organic matter from diatoms more quickly and biocompatibly. The optimal frequency for organic matter removal was investigated for domestically produced .

View Article and Find Full Text PDF

Composite diatom fluorescent sensor substrate enriched with CdSe/ZnS quantum dots on the surface by biofabrication.

Colloids Surf B Biointerfaces

February 2025

College of Marine Life Science, Sanya Oceanographic Institute, Ocean University of China, Qingdao/ Sanya, 266000, China. Electronic address:

Diatoms have developed unique micro- and nanostructures and photonic crystal properties during billions of years of life evolution. In this study, a fluorescence sensor substrate (QD-Diatom) was prepared by biofabrication, and CdSe/ZnS quantum dots (QDs) were immobilized on the surface of diatom biosilica. The concentration of CdSe/ZnS QDs of 7.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!