PMID- 32263796 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20200408 IS - 2050-7518 (Electronic) IS - 2050-750X (Linking) VI - 2 IP - 23 DP - 2014 Jun 21 TI - Enhancing surface characteristics of Ti-6Al-4V for bio-implants using integrated anodization and thermal oxidation. PG - 3597-3608 LID - 10.1039/c3tb21731k [doi] AB - Modifications of Ti-6Al-4V surface roughness, wettability and composition are increasingly studied to improve cellular viability on biomedical implants involving Ti-6Al-4V. In this study, it is shown that modification of Ti-6Al-4V samples using anodization (for the formation of titania nanotubes) combined with thermal oxidation (TO) results in superior surface characteristics to those of a smooth, rough, anodized-smooth or anodized-rough surface alone. Surface characterization is performed using water contact angle (WCA) measurements, white-light interferometry, Fourier transform infrared spectroscopy (FTIRS), field emission scanning electron microscopy and grazing incidence X-ray diffraction (GIXRD). WCA measurements before TO indicate that anodized-smooth and anodized-rough samples are super-hydrophilic (WCA less than 5 degrees ); WCA of non-anodized smooth and rough surfaces are 57 +/- 6 degrees and 86 +/- 7 degrees , respectively. After TO at 450 degrees C for 3 hours, all samples become super-hydrophilic; however, three weeks after TO, smooth and rough surfaces become hydrophobic, while anodized-smooth and anodized-rough surfaces remain hydrophilic. FTIRS and GIXRD data show that the TO of anodized and non-anodized smooth samples results in anatase and rutile TiO(2), of which anatase is favorable for cellular attachment. Micro-/nano-scale roughness and TO are discussed in the context of enhanced Ti-6Al-4V surface characteristics for improved cellular response. FAU - Patel, Sweetu B AU - Patel SB AD - Department of Bioengineering, University of Illinois at Chicago, Chicago, Illinois 60607, USA. takoudis@uic.edu. FAU - Hamlekhan, Azhang AU - Hamlekhan A FAU - Royhman, Dmitry AU - Royhman D FAU - Butt, Arman AU - Butt A FAU - Yuan, Judy AU - Yuan J FAU - Shokuhfar, Tolou AU - Shokuhfar T FAU - Sukotjo, Cortino AU - Sukotjo C FAU - Mathew, Mathew T AU - Mathew MT FAU - Jursich, Gregory AU - Jursich G FAU - Takoudis, Christos G AU - Takoudis CG LA - eng PT - Journal Article DEP - 20140507 PL - England TA - J Mater Chem B JT - Journal of materials chemistry. B JID - 101598493 SB - IM EDAT- 2014/06/21 00:00 MHDA- 2014/06/21 00:01 CRDT- 2020/04/09 06:00 PHST- 2020/04/09 06:00 [entrez] PHST- 2014/06/21 00:00 [pubmed] PHST- 2014/06/21 00:01 [medline] AID - 10.1039/c3tb21731k [doi] PST - ppublish SO - J Mater Chem B. 2014 Jun 21;2(23):3597-3608. doi: 10.1039/c3tb21731k. Epub 2014 May 7.