Self‐Organization of Honeycomb‐like Porous TiO₂ Films by means of the Breath‐Figure Method for Surface Modification of Titanium Implants

Abstract

This study describes a facile breath-figure method for the preparation of honeycomb-like porous TiO2 films with an organometallic small-molecule precursor. Multiple characterization techniques have been used to investigate the porous films and a mechanism for the formation process of porous TiO2 films through the breath-figure method is proposed. The pore size of the TiO2 films could be modulated by varying the experimental parameters, such as the concentration of titanium n-butoxide (TBT) solution, the content of cosolvent, and the air flow rate. In vitro cell-culture experiments indicate that NIH 3T3 fibroblast cells seeded on the honeycomb-like porous TiO2 films show good adhesion, spreading, and proliferation behaviors, which suggests that honeycomb-like porous TiO2 films are an attractive biomaterial for surface modification of titanium and its alloys implants in tissue engineering to enhance their biocompatibility and bioactivity.

Preparation and Functions of Hybrid Membranes with Rings of Ag NPs Anchored at the Edges of Highly Ordered Honeycomb‐Patterned Pores

“…Up to now, the honeycomb films have been well-developed and used as patterned templates, adsorbents, separation media, photonic or opto-electronic devices, and substrates for cell culture. [20][21][22][23][24][25] In this work, to achieve both long-range order and high selectivity of colloidal particle arrays in specific region, we combined the "bottom-up" breath figure method and electrodeposition process to fabricate hierarchically structured organic/inorganic hybrid honeycomb films with functional Ag nanoparticles (NPs) anchored at the edges of the macropores, in consideration of the excellent electrochemical behavior of the oligomer films. The hybrid membranes prepared on the tin-doped indium tin oxide (ITO) glass enhanced the electrochemical activity towards reduction of iodate and effectively accelerated the catalytic reduction of organic dyes.…”

Surface nanoporosity of β-type Ti–25Nb–25Zr alloy for the enhancement of protein adsorption and cell response

“…Biomedical implants with porous surface topographies can improve biocompatibility, and many investigations have studied various methods to change the surface topography of Ti-based implants [11][12][13][14][15][16][17][18][19]. However, these methods tend to be overly complex for practical applications.…”

Multifunctional satellite Fe3O4-Au@TiO2 nano-structure for SERS detection and photo-reduction of Cr(VI)

“…TiO 2 was chosen because it is reported to be SERS-active due to charge transfer between adsorbed molecules and TiO 2 NPs [21]. In addition, it is the most commonly used photo-catalyst and has successful application in Cr(VI) photoreduction, mainly due to its chemical stability and high catalytical activity [22][23][24][25][26].…”