Artificial mineral films similar to biogenic calcareous shells: Oriented calcite nanorods on a self-standing polymer sheet

Yuta Nagai, Yuya Oaki, Hiroaki Imai

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

Micrometre-thick calcareous shells consisting of c-axis-oriented calcite nanorods are produced on an organic sheet as foraminiferal tests and isopod cornea cuticles. Here, we produced mineral films similar to biogenic calcareous shells on a self-standing polymer sheet in a supersaturated solution system by multistep crystal growth with the adjustment of the concentration ratio of poly(acrylic acid) (PAA) as a soluble controlling agent. In the initial stage, selective high-density nucleation was achieved at a relatively low PAA to calcium ion ratio (R = 1.0-1.2) to form of a calcite seed layer on the surface of conventional polyvinyl alcohol. Calcite nanorods elongated in the c direction were then grown perpendicularly to the seed layer in the progressive stages at a relatively high PAA ratio (R = 1.5-2.0). The artificial mineral films consisting of c-axis-oriented nanorods are suggested to exhibit mechanical properties similar to those of biogenic calcareous shells.

Original languageEnglish
Pages (from-to)1656-1661
Number of pages6
JournalCrystEngComm
Volume20
Issue number12
DOIs
Publication statusPublished - 2018 Jan 1

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

Fingerprint Dive into the research topics of 'Artificial mineral films similar to biogenic calcareous shells: Oriented calcite nanorods on a self-standing polymer sheet'. Together they form a unique fingerprint.

Cite this