PMID- 25656491 OWN - NLM STAT- MEDLINE DCOM- 20160122 LR - 20171116 IS - 2192-2659 (Electronic) IS - 2192-2640 (Linking) VI - 4 IP - 6 DP - 2015 Apr 22 TI - Nanostructured Architectures by Assembling Polysaccharide-Coated BSA Nanoparticles for Biomedical Application. PG - 927-37 LID - 10.1002/adhm.201400684 [doi] AB - Nanostructured architectures are produced on Ti surfaces by layer-by layer (LbL) self-assembling of polysaccharide-coated BSA nanoparticles (BNPs), which created cellular microenvironments mimicking natural extracellular matrix. The BMP-2 encapsulated BNPs are prepared by a desolvation method, and are further coated by chitosan (CHI) coatings to obtain positively charged NPs (CBNPs). Vancomycin (Van) encapsulated CBNPs are obtained by the same method and subsequently coated by oxidized alginate (OALG) to obtain negatively charged NPs (OCBNPs). The CBNPs and OCBNPs are assembled on Ti surfaces to construct nanostructured coatings via electrostatic and covalent interactions. The nanostructured architectures realize the sustained release of BMP-2 and Van for a long term. Bone marrow stromal cells (BMSCs) culture tests confirm that the bare nanostructured architectures intrinsically facilitate attachment, proliferation, and differentiation of cells, which is attributed to the nanoscale porous structures that are similar to the size of cellular filopodia. Incorporating BMP-2 into the nanostructured architectures significantly enhances osteogenetic differentiation of BMSCs, which reveals the synergistic effects of nanostructures and growth factors on cell activity. The antibacterial tests indicate that controlled release of Van has good antibacterial ability against Staphylococcus epidermidis, while not affecting the normal biological activity of BMSCs. CI - (c) 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. FAU - Wang, Zhenming AU - Wang Z AD - School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, Sichuan, China. FAU - Wang, Kefeng AU - Wang K FAU - Lu, Xiong AU - Lu X FAU - Li, Chen AU - Li C FAU - Han, Lu AU - Han L FAU - Xie, Chaoming AU - Xie C FAU - Liu, Yaling AU - Liu Y FAU - Qu, Shuxin AU - Qu S FAU - Zhen, Guanming AU - Zhen G LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, Non-P.H.S. DEP - 20150205 PL - Germany TA - Adv Healthc Mater JT - Advanced healthcare materials JID - 101581613 RN - 0 (Anti-Bacterial Agents) RN - 0 (Coated Materials, Biocompatible) RN - 0 (Polysaccharides) RN - 27432CM55Q (Serum Albumin, Bovine) SB - IM MH - Anti-Bacterial Agents/administration & dosage MH - Cells, Cultured MH - *Coated Materials, Biocompatible MH - Humans MH - *Nanostructures MH - Polysaccharides/*chemistry MH - Serum Albumin, Bovine/*chemistry OTO - NOTNLM OT - bovine serum albumin OT - dual delivery OT - nanoparticles OT - nanostructured architectures OT - vancomycin EDAT- 2015/02/07 06:00 MHDA- 2016/01/23 06:00 CRDT- 2015/02/07 06:00 PHST- 2014/11/04 00:00 [received] PHST- 2015/01/08 00:00 [revised] PHST- 2015/02/07 06:00 [entrez] PHST- 2015/02/07 06:00 [pubmed] PHST- 2016/01/23 06:00 [medline] AID - 10.1002/adhm.201400684 [doi] PST - ppublish SO - Adv Healthc Mater. 2015 Apr 22;4(6):927-37. doi: 10.1002/adhm.201400684. Epub 2015 Feb 5.