journal article·2020-10

Non-aqueous liquid crystals of hydroxyapatite nanorods

Junjun Tan, Yang Liu, Jing Gong, Xiaoying Jin, Cheng Cheng, Rong Zhang, Minfang Chen

Acta Biomaterialia· Volume 116
Publisher page

Abstract

Hydroxyapatite (HA) nanorods in the collagen matrix of bone have a macroscopically ordered structure that has many similarities to the ordered structure of anisotropic nano-units in inorganic liquid crystals (LCs). Inspired by these similarities, we conducted the first (to our best knowledge) synthesis of HA LCs in non-polar solvents (such as cyclohexane and toluene), thus expanding the range of applicable monomers and polymers. We synthesized HA nanorods by a simple, effective, and oleic-acid-assisted hydrothermal route. The hydrothermal temperature directly modulates the aspect ratio of the HA nanorods, and indirectly modulates their LC behavior. The LC phase transition has no size limitation. Thus, our approach may be used to develop high solid content, macroscopically assembled, large-scale polymer-based bio(mimetic)-materials.
Source: europepmc · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Bone Tissue Engineering Materials · Collagen: Extraction and Characterization · Hydrogels: synthesis, properties, applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

References (35)

Show source-provided references
1. The material bone: structure-mechanical function relations10.1146/annurev.matsci.28.1.271 ↗
2. Novel polypropylene biocomposites reinforced with carbon nanotubes and hydroxyapatite nanorods for bone replacements10.1016/j.msec.2012.12.039 ↗
3. Surface characterization for ultrahigh molecular weight polyethylene/hydroxyapatite gradient composites prepared by the gelation/crystallization method
4. Graphene oxide versus functionalized carbon nanotubes as a reinforcing agent in a PMMA/HA bone cement10.1039/c2nr30303e ↗
5. Bioinspired hydroxyapatite/poly(methyl methacrylate) composite with a nacre-mimetic architecture by a bidirectional freezing method10.1002/adma.201504313 ↗
6. Preparation of a highly dispersed nanohydroxyapatite by a new surface-modification strategy used as a reinforcing filler for poly(lactic-co-glycolide)10.1021/acs.iecr.8b03258 ↗
7. In vitro and in vivo evaluation of a novel nanosize hydroxyapatite particles/poly(ester-urethane) composite scaffold for bone tissue engineering10.1016/j.actbio.2009.12.004 ↗
8. Über freiwillige Strukturbildung in Solen. (Eine neue Art anisotrop flüssiger Medien.)10.1002/zaac.19251470111 ↗
9. The Effects of Shape on the Interaction of Colloidal Particles10.1111/j.1749-6632.1949.tb27296.x ↗
10. Liquid crystal phase transitions in suspensions of polydisperse plate-like particles10.1038/35022535 ↗
11. Nematic liquid crystallinity of multiwall carbon nanotubes10.1126/science.1089764 ↗
12. Aqueous liquid crystals of graphene oxide10.1021/nn200069w ↗
13. Liquid crystals: Electric fields line up graphene oxide10.1038/nmat3929 ↗
14. Design of liquid-crystalline aqueous suspensions of rutile nanorods: evidence of anisotropic photocatalytic properties10.1021/ja0684491 ↗
15. Liquid-crystalline phases of colloidal dispersions of layered double hydroxides10.1021/cm034201o ↗
16. Synthesis of monodisperse, rodlike silica colloids with tunable aspect ratio10.1021/ja109524h ↗
17. Liquid-crystalline calcium carbonate: biomimetic synthesis and alignment of nanorod calcite10.1039/C5SC01820J ↗
18. Stimuli-responsive hydroxyapatite liquid crystal with macroscopically controllable ordering and magneto-optical functions10.1038/s41467-018-02932-7 ↗
19. Bio-inspired synthesis of aqueous nanoapatite liquid crystals10.1038/s41598-018-36843-w ↗
20. Problem of hydroxyapatite dispersion in polymer matrices: a review10.1007/s10856-009-3696-2 ↗
21. Synthesis methods for nanosized hydroxyapatite with diverse structures10.1016/j.actbio.2013.04.012 ↗
22. Advances in synthesis of calcium phosphate crystals with controlled size and shape10.1016/j.actbio.2014.06.017 ↗
23. Calcium-based biomaterials for diagnosis, treatment, and theranostics10.1039/C6CS00746E ↗
24. A general strategy for nanocrystal synthesis10.1038/nature03968 ↗
25. Liquid-solid-solution synthesis of biomedical hydroxyapatite nanorods10.1002/adma.200600033 ↗
26. Length-controlled synthesis of calcium phosphate nanorod and nanowire and application in intracellular protein delivery10.1021/acsami.6b01667 ↗
27. Effects of hydrothermal temperature and time on hydrothermal synthesis of colloidal hydroxyapatite nanorods in the presence of sodium citrate10.1016/j.jcis.2015.03.010 ↗
28. Hydrothermal synthesis of hydroxyapatite nanorods in the presence of sodium citrate and its aqueous colloidal stability evaluation in neutral pH10.1016/j.jcis.2014.12.010 ↗
29. Large-scale synthesis of water-soluble luminescent hydroxyapatite nanorods for security printing10.1016/j.jcis.2016.01.078 ↗
30. Antagonistic effect in pickering emulsion stabilized by mixtures of hydroxyapatite nanoparticles and sodium oleate10.1016/j.colsurfa.2015.08.009 ↗
31. Re-examination of characteristic FTIR spectrum of secondary layer in bilayer oleic acid-coated Fe3O4 nanoparticles10.1016/j.apsusc.2009.11.079 ↗
32. Bilayer Surfactant Stabilized Magnetic Fluids: Synthesis and Interactions at Interfaces10.1021/la9807661 ↗
33. Lekkerkerker HNW, Vroege GJ.Liquid crystal phase transitions in suspensions of mineral colloids: new life from old roots2013;371:20120263.10.1098/rsta.2012.0263 ↗
34. Mineral liquid crystals10.1016/j.cocis.2004.12.001 ↗
35. New trends in colloidal liquid crystals based on mineral moieties10.1002/(SICI)1521-4095(200001)12:1<9::AID-ADMA9>3.0.CO;2-6 ↗