Turn-On Fluorescence Detection of Glutathione Based on <i>o</i>-Phthaldialdehyde-Assisted SiO<sub>2</sub> Particles

<div>Fluorescence intensity versus time of SiO<sub>2</sub>-SH-OPA particles in the presence of standard GSH solution, dietary supplement P1, and amino acid standard solutions (GLU, CYS, and GLY). Experimental conditions: (GSH, P1, GLU, CYS, and GLY) = 8.0 × 10<sup>−6</sup> M; <span class="nowrap"><svg height="12.584005pt" id="M24" style="vertical-align:-3.295671pt" version="1.1" viewbox="-0.049816 -9.288335 119.880648 12.584005" width="119.880648pt" 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="M529 97L508 118C475 75 449 58 438 58C428 58 421 66 415 104C393 234 374 403 364 496C345 670 307 712 254 712C220 712 174 691 153 669L161 645C176 653 194 658 206 658C237 658 261 640 278 562C287 522 290 483 293 434C223 269 110 105 23 9L32 -12C59 -6 85 0 108 7C152 64 251 252 300 366C307 297 315 221 337 82C346 24 363 -12 393 -12C425 -12 475 13 529 97Z"></path></g><g transform="matrix(.0091,0,0,-0.0091,7.79,3.132)"><path d="M384 109C349 76 310 59 268 59C197 59 123 113 120 245C240 248 367 259 384 262C403 266 407 275 407 296C407 376 338 451 254 451H253C201 451 148 425 105 378C65 334 39 272 39 203C39 88 112 -12 235 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251 252 300 366C307 297 315 221 337 82C346 24 363 -12 393 -12C425 -12 475 13 529 97Z"></path></g><g transform="matrix(.0091,0,0,-0.0091,29.821,3.132)"><path d="M384 109C349 76 310 59 268 59C197 59 123 113 120 245C240 248 367 259 384 262C403 266 407 275 407 296C407 376 338 451 254 451H253C201 451 148 425 105 378C65 334 39 272 39 203C39 88 112 -12 235 -12C266 -12 339 5 402 84L384 109ZM230 411C285 411 319 365 319 313C319 298 313 293 294 293C236 291 180 290 125 290C141 370 185 411 230 411Z"></path></g><g transform="matrix(.0091,0,0,-0.0091,33.785,3.132)"><path d="M810 0V30C751 35 744 40 744 106V296C744 396 694 451 614 451C583 451 558 438 537 425C512 409 485 391 454 368C434 420 390 451 342 451C309 451 285 439 260 424C228 405 206 387 185 372V453C141 434 90 421 43 413V386C102 378 105 373 105 309V106C105 41 96 35 29 30V0H243V30C194 35 185 41 185 106V335C216 360 256 389 297 389C357 389 384 348 384 275V106C384 41 374 35 312 30V0H530V30C475 35 465 41 465 104V294C465 313 464 324 463 336C502 367 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Journal of Sensors

fig7

Figure 7

Figure 7: Turn-On Fluorescence Detection of Glutathione Based on <i>o</i>-Phthaldialdehyde-Assisted SiO<sub>2</sub> Particles 

Journal of Sensors

Turn-On Fluorescence Detection of Glutathione Based on o-Phthaldialdehyde-Assisted SiO2 Particles

Figure 7

Turn-On Fluorescence Detection of Glutathione Based on o-Phthaldialdehyde-Assisted SiO₂ Particles