کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1792775 1023657 2010 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Growth of aragonite calcium carbonate nanorods in the biomimetic anodic aluminum oxide template
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Growth of aragonite calcium carbonate nanorods in the biomimetic anodic aluminum oxide template
چکیده انگلیسی

In this study, a biomimetic template was prepared and applied for growing calcium carbonate (CaCO3) nanorods whose shape and polymorphism were controlled. A biomimetic template was prepared by adsorbing catalytic dipeptides into the pores of an anodic aluminum oxide (AAO) membrane. Using this peptide-adsorbed template, mineralization and aggregation of CaCO3 was carried out to form large nanorods in the pores. The nanorods were aragonite and had a structure similar to nanoneedle assembly. This aragonite nanorod formation was driven by both the AAO template and catalytic function of dipeptides. The AAO membrane pores promoted generation of aragonite polymorph and guided nanorod formation by guiding the nanorod growth. The catalytic dipeptides promoted the aggregation and further dehydration of calcium species to form large nanorods. Functions of the AAO template and catalytic dipeptides were verified through several control experiments. This biomimetic approach makes possible the production of functional inorganic materials with controlled shapes and crystalline structures.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Crystal Growth - Volume 312, Issue 10, 1 May 2010, Pages 1741–1746
نویسندگان
, , ,