Table 1.

Some examples of metal nanoparticles for imaging-guided PTT of colorectal cancer.

Types of nanoparticles	Size	Imaging	Laser wavelength (nm)	Temperature	Colorectal cancer cell line	In vitro/In vivo	Ref.
GNRs	12.7 ± 3.4 nm in width and 47 ± 9.3 nm in length	NIRF endoscopic imaging	808	ΔT∼ 20 °C	–	In vivo	[57]
Au@Gd2O3 NPs	∼75 nm in diameter	MRI and X-ray imaging	808	ΔT∼ 19.5 °C	CC-531	In vitro and in vivo	[58]
Fe2O3@Au NPs	22 nm in diameter and ∼5 nm in thickness	MRI	808	ΔT∼ 12 °C	CT26	In vivo	[59]
Alginate nanogel co-loaded AuNPs	20–80 nm in the hydrodynamic diameter	(2-deoxy-2-[18F] fluoro-d-glucose)- PET	532	Tmax = 58.55 °C	CT26	In vivo	[60]
AuPEI nanocomposite	10.8 nm	Photoacoustic imaging	808	Tmax > 50 °C	CT26	In vitro and in vivo	[90]
Fe3O4@RhB/SiO2@Au nanoparticles	365 nm in diameter	MRI and optical imaging	808	–	SW620	In vitro	[91]
Iron Oxide Nanocrystals	182.7 nm in hydrodynamic size	MRI	808	Tmax = 51 °C	HT-29	In vitro	[67]
IO@Au nanoparticles	20 nm in diameter, and ∼3 nm in thickness	MRI	808	Tmax = 48.6 °C	CT26	In vivo	[68]
PEGylated albumin/IR780/Iron oxide nanocomplexes	146.3 nm and 173.7 nm	MRI	808	ΔT∼14 °C	CT26	In vitro and in vivo	[69]
Fe3O4@PDA-PEG-cRGD-DOX nanoparticles	275.4 nm	MRI	808	Tmax = 45.5 °C	HCT116	In vitro and in vivo	[70]
Iron oxide-hydroxide nanospindles	around 10 × 40 nm	MRI	808	Tmax≈ 59 °C	CT26	In vitro and in vivo	[92]
Gold-iron oxide hybrid nanoparticles	6–18 nm	MRI	808	Tmax = 42–45 °C	SW1222 and HT29	In vitro and in vivo	[93]
hollow AgAu-DTTC-BSA nanoparticles	∼85 nm in hydrodynamic size	SERS imaging	785 and 808	Tmax ∼52 °C	CT26	In vitro and in vivo	[75]
Phage protein-modified Au@Ag heterogeneous nanorods	220 nm in length and 70 nm in width	Fluorescence and optical imaging	808	–	SW620	In vitro	[76]
PDA@ut-MnO2/MB nanoflowers	82 ± 5 nm in diameter	MRI	808 and 650	Tmax = 52 °C	HCT116	In vitro and in vivo	[82]
MnO2@MPDA-PEG nanoparticles	∼180 nm in hydrodynamic size	MRI	808	Tmax = 43–45 °C	CT26	In vitro and in vivo	[83]
HA-MoS2 conjugates	≈200 ± 75.31 nm	Photoacoustic and fluorescence imaging	808	ΔT > 25 °C	HCT116	In vitro and in vivo	[88]
MoS2-PVP nanosheets	21.4 ± 4.4 nm	Photoacoustic imaging	808	ΔT = 23.5 °C (after 300 s of iradiation)	HT29	In vitro and in vivo	[89]