PMID- 29723214 OWN - NLM STAT- MEDLINE DCOM- 20180806 LR - 20240314 IS - 1932-6203 (Electronic) IS - 1932-6203 (Linking) VI - 13 IP - 5 DP - 2018 TI - Micro/nano hierarchical structured titanium treated by NH4OH/H2O2 for enhancing cell response. PG - e0196366 LID - 10.1371/journal.pone.0196366 [doi] LID - e0196366 AB - In this paper, two kinds of titanium surfaces with novel micro/nano hierarchical structures, namely Etched (E) surface and Sandblast and etched (SE) surface, were successfully fabricated by NH4OH and H2O2 mixture. And their cellular responses of MG63 were investigated compared with Sandblast and acid-etching (SLA) surface. Scanning electron microscope (SEM), Surface profiler, X-ray photoelectron spectroscopy (XPS), and Contact angle instrument were employed to assess the surface morphologies, roughness, chemistry and wettability respectively. Hierarchical structures with micro holes of 10-30 mum in diameter and nano pits of tens of nanometers in diameter formed on both E and SE surfaces. The size of micro holes is very close to osteoblast cell, which makes them wonderful beds for osteoblast. Moreover, these two kinds of surfaces possess similar roughness and superior hydrophilicity to SLA. Reactive oxygen species were detected on E and SE surface, and thus considerable antimicrobial performance and well fixation can be speculated on them. The cell experiments also demonstrated a boost in cell attachment, and that proliferation and osteogenic differentiation were achieved on them, especially on SE surface. The results indicate that the treatment of pure titanium with H2O2/NH4OH is an effective technique to improve the initial stability of implants and enhance the osseointegration, which may be a promising surface treatment to titanium implant. FAU - Yuan, Xin AU - Yuan X AD - State Key Laboratory of Powder Metallurgy, School of Materials Science and Engineering, Central South University, Changsha, PR China. FAU - Kang, Yi AU - Kang Y AD - The Third Xiangya Hospital, Central South University, Changsha, PR China. FAU - Zuo, Jun AU - Zuo J AD - Xiangya Stomatological Hospital, Central South University, Changsha, PR China. FAU - Xie, Youneng AU - Xie Y AD - State Key Laboratory of Powder Metallurgy, School of Materials Science and Engineering, Central South University, Changsha, PR China. FAU - Ma, Li AU - Ma L AD - State Key Laboratory of Powder Metallurgy, School of Materials Science and Engineering, Central South University, Changsha, PR China. FAU - Ren, Xuelei AU - Ren X AD - State Key Laboratory of Powder Metallurgy, School of Materials Science and Engineering, Central South University, Changsha, PR China. FAU - Bian, Zeyu AU - Bian Z AD - State Key Laboratory of Powder Metallurgy, School of Materials Science and Engineering, Central South University, Changsha, PR China. FAU - Wei, Qiuping AU - Wei Q AUID- ORCID: 0000-0002-8109-5982 AD - State Key Laboratory of Powder Metallurgy, School of Materials Science and Engineering, Central South University, Changsha, PR China. FAU - Zhou, Kechao AU - Zhou K AD - State Key Laboratory of Powder Metallurgy, School of Materials Science and Engineering, Central South University, Changsha, PR China. FAU - Wang, Xiyang AU - Wang X AD - Hunan Provincial Engineering Laboratory for High-performance Bio-engineered Biomimetic Bone Materials, Xiangya Hospital, Central South University, Changsha, PR China. FAU - Yu, Zhiming AU - Yu Z AD - State Key Laboratory of Powder Metallurgy, School of Materials Science and Engineering, Central South University, Changsha, PR China. AD - Hunan Provincial Engineering Laboratory for High-performance Bio-engineered Biomimetic Bone Materials, Xiangya Hospital, Central South University, Changsha, PR China. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20180503 PL - United States TA - PLoS One JT - PloS one JID - 101285081 RN - 5138Q19F1X (Ammonium Hydroxide) RN - BBX060AN9V (Hydrogen Peroxide) RN - D1JT611TNE (Titanium) SB - IM MH - Ammonium Hydroxide MH - Cell Adhesion MH - Cell Differentiation MH - Cell Line MH - Cell Proliferation MH - Humans MH - Hydrogen Peroxide MH - Metal Nanoparticles/*chemistry MH - Microscopy, Electron, Scanning MH - Nanotechnology MH - Osseointegration MH - Osteoblasts/cytology MH - *Prostheses and Implants MH - Surface Properties MH - Titanium/*chemistry PMC - PMC5933712 COIS- Competing Interests: The authors have declared that no competing interests exist. EDAT- 2018/05/04 06:00 MHDA- 2018/08/07 06:00 PMCR- 2018/05/03 CRDT- 2018/05/04 06:00 PHST- 2018/02/10 00:00 [received] PHST- 2018/04/11 00:00 [accepted] PHST- 2018/05/04 06:00 [entrez] PHST- 2018/05/04 06:00 [pubmed] PHST- 2018/08/07 06:00 [medline] PHST- 2018/05/03 00:00 [pmc-release] AID - PONE-D-18-04538 [pii] AID - 10.1371/journal.pone.0196366 [doi] PST - epublish SO - PLoS One. 2018 May 3;13(5):e0196366. doi: 10.1371/journal.pone.0196366. eCollection 2018.