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Nanosized and tunable design of biosilica particles using novel silica-forming peptide-modified chimeric ferritin templates.
- Source :
- Journal of Industrial & Engineering Chemistry; May2019, Vol. 73, p198-204, 7p
- Publication Year :
- 2019
-
Abstract
- Graphical abstract Highlights • Reliable and controllable generation of biosilica nanoparticles (NPs) by new silica forming peptide-modified ferritin (Kps-Fn) • Synthesis of biosilica NPs (100–500 nm) with desired size by changing the ratios of Kps-Fn and Fn subunits in the chimeric Kps-Fn templates. • The biosilica NPs with high surface area causing a better DNA-loading efficiency. Abstract Biosilica materials can be generated by biomolecules under physiological or mild/ambient conditions. However, nanosized and tunable design method of biosilica particles has not yet been set up. Here, Kps, a silica forming peptide (KPSHHHHHTGAN) was introduced to N-terminus of ferritin via protein fusion method to generate new Kps-modified ferritin (Kps-Fn) for reliable formation of biosilica particles. Then, novel chimeric Kps-Fn was designed for controllable generation of biosilica nanoparticles (NPs). By changing the ratios of Kps-Fn and Fn subunits in the chimeric Kps-Fn templates, desired size of biosilica NPs (100–500 nm) can be achieved. The low surface density of Kps on the chimeric template could lead to the small-sized biosilica NPs with the increased surface area/amount. The biosilica NPs developed here showed better DNA adsorption/elution performance than the commercially available silica NPs. This work is a new way to generate desirable biosilica NPs, which can be applied for the design of various biohybrid nanomaterials. [ABSTRACT FROM AUTHOR]
- Subjects :
- FERRITIN
CHIMERIC proteins
SURFACE area
NANOSTRUCTURED materials
NANOPARTICLES
Subjects
Details
- Language :
- English
- ISSN :
- 1226086X
- Volume :
- 73
- Database :
- Supplemental Index
- Journal :
- Journal of Industrial & Engineering Chemistry
- Publication Type :
- Periodical
- Accession number :
- 135076816
- Full Text :
- https://doi.org/10.1016/j.jiec.2019.01.025