A Coumarin-Based Fluorescence Probe for Selective Recognition of Cu<sup>2+</sup> Ions and Live Cell Imaging

<div>UV-vis absorption spectra of L (10 <i>μ</i>M) with addition of various concentrations of Cu<sup>2+</sup> ions (0~7.5 equivalents) in CH<sub>3</sub>CN/HEPES (3 : 2, <span class="nowrap"><svg height="11.439pt" id="M5" style="vertical-align:-2.15067pt" version="1.1" viewbox="-0.0498162 -9.28833 17.2457 11.439" width="17.2457pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M219 86C216 168 211 250 206 337C201 410 189 448 163 448C131 448 79 396 43 344L60 322C91 359 110 375 118 375S132 358 136 298C141 238 152 81 155 -12H182C242 62 331 177 390 258C435 321 451 360 451 391C450 424 432 448 408 448C390 448 372 435 366 419C362 410 362 401 366 394C373 383 376 367 376 350C376 283 262 138 221 86H219Z"></path></g><g transform="matrix(.013,0,0,-0.013,5.863,0)"><path d="M368 703H309L44 -163H104L368 703Z"></path></g><g transform="matrix(.013,0,0,-0.013,11.224,0)"><path d="M219 86C216 168 211 250 206 337C201 410 189 448 163 448C131 448 79 396 43 344L60 322C91 359 110 375 118 375S132 358 136 298C141 238 152 81 155 -12H182C242 62 331 177 390 258C435 321 451 360 451 391C450 424 432 448 408 448C390 448 372 435 366 419C362 410 362 401 366 394C373 383 376 367 376 350C376 283 262 138 221 86H219Z"></path></g></svg>)</span> buffer. Inset: absorbance at 442 nm versus the concentration of Cu<sup>2+</sup>.</div>

Journal of Sensors

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Figure 1

Figure 1: A Coumarin-Based Fluorescence Probe for Selective Recognition of Cu<sup>2+</sup> Ions and Live Cell Imaging 

Journal of Sensors

A Coumarin-Based Fluorescence Probe for Selective Recognition of Cu2+ Ions and Live Cell Imaging

Figure 1

A Coumarin-Based Fluorescence Probe for Selective Recognition of Cu²⁺ Ions and Live Cell Imaging