Author

Reduction

Method

Metal

precursor

Reducing reagent

Power (W)

[D %]

Process

time (s)

Morphology

Nadagoudà

(2007)

[22]

One-pot

Panasonic

Inverter circuit Rated 1 kW

HAuCl4×4H2O

α-D-glucose

and sucrose

Maltose

1000

[100]

30

45

Spherical

Cubes, hexagons, prisms

Yazmin

(2014) [23] **

One-pot

MO unspecified

HAuCl4×4H2O

Hibiscus rosa-sinensis leaf extract

420

90

Spherical

16 to 30 nm

Ngo et al.

(2015) [24]

One-pot

Electrolux

EMM1908W

Rated 700 W

HAuCl4×4H2O

Na3ct

H2O

210

[30]

600

Spherical

12 to 15 nm

Bhoslae

(2015) [25] **

One-pot

LG Intellowave,

Rated 800 W

HAuCl4×4H2O

DMSO

800

[50]

120

180

Nanoflowers 400 nm

Spherical 400 nm

Ngo et al.

(2016) [26]

One-pot

Electrolux

EMM1908W

Rated 700 W

HAuCl4×4H2O

Na3ct

H2O

210

[30]

300

Triangle

14 to 22 nm

El-Nagger et al. (2016) [27] **

One-pot

Galanz (xxx)

Rated note given

HAuCl4

Curdlan

Not reported

120 to 600

Au core shell

52 to 54 nm

Shah et al. (2019) [28]

Sharp R202ZS

Rated 800 W

HAuCl4×4H2O

MPTMS

H2O

800

[100]

60

Hexagonal

100 to 300 nm

Hussein et al.

(2020) [29] **

Second step

MO unspecified

HAuCl4×4H2O

Dextran

H2O

Not reported

40

Spherical

~1 to 2 nm

Putri et al.

(2021) [30] [48]

One-pot

Panasonic

NN-SM33HM/W

Rated 800 W

HAuCl4×4H2O

White bol guava leaf extract ethanol

800

[100]

120

~17 nm

Diab et al.

(2022) [31] **

One-pot

MO unspecified

HAuCl4×4H2O

CMCT NaOH

Not reported

40

Spherical

~7 nm