Abstract:Ratiometric green–red fluorescent nanosensors for fluorometrically monitoring pH in the acidic range were designed from 80 nm-sized polystyrene (PS) and silica (SiO2) nanoparticles (NPs), red emissive reference dyes, and a green emissive naphthalimide pH probe, analytically and spectroscopically characterized, and compared regarding their sensing performance in aqueous dispersion and in cellular uptake studies. Preparation of these optical probes, which are excitable by 405 nm laser or LED light sources, invol… Show more
“…Over the last decade, many groups have developed new FL probes with a wider range of sensitivity towards pH values. This is the case developed by Srivastava and collaborators 141 who recently synthesized a novel pH-responsive green naphtalimide-based dye ( λ ex = 405 nm; λ em = 525 nm) ( Fig. 3b ).…”
Section: Microenvironment Parameters Under Studymentioning
Summary of advances in synthesis and application of optical ratiometric nano- and microparticle sensors for in vitro and in vivo detection of pH, oxygen, ROS, ions, and biomarkers in cell microenvironment.
“…Over the last decade, many groups have developed new FL probes with a wider range of sensitivity towards pH values. This is the case developed by Srivastava and collaborators 141 who recently synthesized a novel pH-responsive green naphtalimide-based dye ( λ ex = 405 nm; λ em = 525 nm) ( Fig. 3b ).…”
Section: Microenvironment Parameters Under Studymentioning
Summary of advances in synthesis and application of optical ratiometric nano- and microparticle sensors for in vitro and in vivo detection of pH, oxygen, ROS, ions, and biomarkers in cell microenvironment.
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