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clcelvis金蟲(chóng) (小有名氣)
小木蟲(chóng)
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[求助]
如何判斷一種縮氨酸分子與細(xì)胞的結(jié)合效率?判斷的機(jī)理是什么?
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看到一篇文獻(xiàn),無(wú)奈知識(shí)貯備有限,還請(qǐng)大神指教。那篇文獻(xiàn)是Magnetic Iron Oxide Nanoworms for Tumor Targeting and Imaging** ByJi-Ho Park, Geoffrey von Maltzahn, Lianglin Zhang, Michael P. Schwartz, Erkki Ruoslahti, Sangeeta N. Bhatia,andMichael J. Sailor* Figure 2. Internalization of nanoworms (NWs) and nanospheres (NSs) conjugated with F3 peptides into MDA-MB-435 cells. Conceptual scheme illustrating the increased multivalent interactions expected between receptors on a cell surface and targeting ligands on a NW compared with a NS. b) Fluorescence data comparing the efficiency of cellular internalization for various functionalized NW and NS systems. NH2, F3, and PEG-F3 indicate aminated NW/NS, F3-conjugated NW/NS and PEGylgated F3-conjugated NW/NS, respectively. c) Fluorescence microscope images of cells 3 h after incubation with F3(FITC)-conjugated NW (NW-175-F) or F3(FITC)-conjugated NS (NS-30-F) (green). Nuclei are visualized with a DAPI stain (blue). Scale bar is 20mm 我不理解熒光測(cè)試的測(cè)試機(jī)理?為什么縮氨酸分子與細(xì)胞結(jié)合就能顯示熒光?不結(jié)合就不能顯示熒光? |

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