Tripathi, K.Tran, T.Tung, T.Losic, D.Kim, T.2017-04-022017-04-022017Journal of Nanomaterials, 2017; 2017:7029731-1-7029731-101687-41101687-4129http://hdl.handle.net/2440/104112Carbon nanodots (CNDs) derived from a green precursor, kidney beans, was synthesized with high yield via a facile pyrolysis technique. The CND material was easily modified through simple oxidative treatment with nitric acid, leading to a high density “self-passivated” water soluble form (wsCNDs). The synthesized wsCNDs have been extensively characterized by using various microscopic and spectroscopic techniques and were crystalline in nature. The highly carboxylated wsCNDs possessed tunable-photoluminescence emission behavior throughout the visible region of the spectrum, demonstrating their application for multicolor cellular imaging of HeLa cells. The tunable-photoluminescence properties of “self-passivated” wsCNDs make them a promising candidate as a probe in biological cell-imaging applications.enCopyright © 2017 Kumud Malika Tripathi et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.Journal article003006439210.1155/2017/70297310003926108000012-s2.0-85010338487287350Tran, T. [0000-0002-0047-9571]Tung, T. [0000-0002-1535-5109]Losic, D. [0000-0002-1930-072X]