篇名 | Review:Synthesis of Fluorescent Metallic Nanoclusters toward Biomedical Application: Recent Progress and Present Challenges |
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卷期 | 29:6 |
作者 | Lin, Cheng-an J. 、 Lee, Chih-hsien 、 Wang, Hsueh-hsiao 、 Hsieh, Jyun-tai 、 Li, Jimmy-K. 、 Shen, Ji-lin 、 Chan, Wen-hsiung 、 Yeh, Hung-i 、 Chang, Walter-H. |
頁次 | 276-283 |
關鍵字 | Fluorescent gold nanoclusters 、 Bioconjugation 、 Synthesis 、 Quantum dots 、 Fluorescent silver nanocluster 、 Cell labeling 、 Detection 、 Imaging 、 EI 、 SCI |
出刊日期 | 200912 |
Recent advances in nanomaterials have produced a new class of fluorescent labels by biocognition molecules to fluorescent noble-metal nanoclusters such as Au and Ag. In particular, the emission wavelength of metallic
nanoclusters can be tuned by changing the capping molecules, and a single light source is needed for simultaneous excitation of all different-emissive nanoclusters, which is similar to semiconductor quantum dots. In this review, we highlight the recent advances in synthesis approaches, biomolecular conjugation and its biomedical application. Fabricating the color-emitting metal nanoclusters using the template-based synthesis (i.e., dendrimer, oligonucleotide, proteins, polyelectrolyte, and polymer) and monolayer-protected nanocluster (MPC) synthesis (i.e., dihydrogen lipoic acid and mercaptoundecanoic acid) are described. High-quality nanoclusters are also more biocompatible and stable against photobleaching compared with organic dyes. These novel optical properties render the fluorescent noble-metal nanoclusters ideal fluorophores for multicolor and multiplexing applications in biomedical engineering and molecular biotechnology.