| silica/γ-Fe2O3 core–shell NPs |
fluorescein, sulforhodamine B |
2-λ emission |
(887) |
| silica/polymeric core–shell
NPs |
naphthalimide, rhodamine B |
intensity |
(472) |
| Ag core
+ silica shell with
poly(allyl amine) |
HPTS self-referenced |
2-λ excitation |
(884) |
| pluronic F127, TEOS |
fluorescein, porphyrin reference |
silica–polymer hybrid,
no cellular uptake, for monitoring pH during bacterial growth |
(571) |
| pluronic F127, TEOS |
fluorescein, porphyrin reference,
Pt(II) porphyrin oxygen indicator |
dual sensing of oxygen and
pH |
(881) |
| dendrimer-coated QD |
SNARF-5F dye, CdSe/CdZnS
QD |
FRET-based, two-photon
excitation |
(807) |
| hydroxypropylcellulose-poly(acrylic
acid) nanogel |
CdSe
quantum dots |
swelling
of the nanogel
induces luminescence quenching |
(882) |
| polyethylenimine
coated
NaYF4:Yb,Er UCNPs and graphene oxide |
NaYF4:Yb,Er UCNPs |
graphene oxide acts as quencher
depending on strength of the electrostatic interactions |
(883) |
| metal–organic framework
NP (Zr(IV) and amino-triphenyldicarboxylic acid) |
fluorescein |
high dye loading up to 4% wt. without self-quenching |
(638) |
| silver core, silica
shell,
poly(allylamine) coating |
HPTS |
metal-enhanced
fluorescence |
(884) |
| silver core, silica shell |
fluorescein, eosin |
dying via click chemistry |
(889) |
| polythiophene-Au composite |
|
absorption independent of
pH, emission linear from pH 3–6 |
(885) |
| gold nanoparticles with
thiol spacer |
anthracene
derivative, rhodamine |
ratiometric |
(141) |
| gold nanoparticles |
tetramethylrhodamine |
pH dependent dimer formation
of rhodamine, pH range 6–10 |
(890) |
| gold nanoparticles |
PEGylated porphyrin |
ratiometric (absorbance),
intensity |
(891) |
| silica-coated iron oxide
nanoparticles with polymer shell |
benzo[a]phenoxazine derivative |
magnetic, NIR, 40-fold enhancement
of luminescence intensity from pH 8.4–3.6 |
(886) |
| maghemite (γ-Fe2O3) nanocrystals with 2 silica shells |
fluorescein, sulforhodamine B |
magnetic, ratiometric |
(887) |
| nickel core, silver
layer,
polymer gel shell |
silver layer |
magnetic,
pH-sensitivity
due to volume phase |
(888) |
| NaGdF4:Yb/Er
UCNPs |
AgS nanodots
modified with
3-mercaptopropionic acid and glutathione |
NIR excitation (980 nm)
and NIR emission (795 nm), ratiometric, pH range 4–9, imaging |
(892) |
| silica-coated polystyrene
NP |
fluorescein, CrBPh4, porphyrin or Nile red |
simultaneous measurement
of T, O2 and pH with single excitation |
(893) |
| silica core and polymeric
shell |
1,8-naphthalimide
with PET
group |
also for drug
release |
(769) |
| poly(3,4-dihydroxyphenylalanine) |
|
ratiometric, linear pH range 4–8 |
(894) |
| silicon carbide NPs |
|
pH range 5.6–7.4, ratiometric |
(895) |
| MnO2 nanosheets |
3-acetyl-7-hydroxy-2H-chromen-2-one |
pH range 4–7, dual sensing
of pH and glutathione; exc/em maxima at 417/456 nm |
(896) |
