کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
606398 1454527 2016 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Large-scale synthesis of water-soluble luminescent hydroxyapatite nanorods for security printing
ترجمه فارسی عنوان
سنتز نانوسایل های هیدروکسی آپاتیت فلورسنت محلول در آب برای چاپ های امنیتی در مقیاس بزرگ
کلمات کلیدی
نانوذرات هیدروکسی آپاتیت، دوپینگ اروپائی ثبات کلوئیدی، لومینسانس، چاپ امنیتی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
چکیده انگلیسی

Luminescent hydroxyapatite nanoparticles, which have excellent biocompatibility, excellent photostability, and strong fluorescence, have received increasing attention as bioprobes in cell imaging. However, they are also excellent candidates for use in ink-jet security printing. Successful products for related applications usually require highly crystalline, mono-dispersible hydroxyapatite nanorods with good colloidal stability and high fluorescence in aqueous media. These requirements are hard to simultaneously satisfy using most synthetic methods. In this paper, we report a simple and versatile hydrothermal method that incorporates the use of sodium citrate to prepare water-dispersible Eu3+-doped hydroxyapatite nanorods. The hydroxyapatite nanorods obtained using this method are highly crystalline rod-shaped particles with an average length of 50–80 nm and an average diameter of 15–30 nm. Dispersions of these hydroxyapatite nanorods, which are transparent with a slightly milky color under natural light and a bright red color when excited with 241 nm UV light, display zeta potentials of −35 mV and hydrodynamic diameters of 120 nm. These dispersions remain colloidally stable for a few months. Dispersions with these properties could be easily applied to security printing for confidential information storage and anti-counterfeiting technologies.

Figure optionsDownload high-quality image (223 K)Download as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Colloid and Interface Science - Volume 468, 15 April 2016, Pages 300–306
نویسندگان
, , , , , , ,