TY - JOUR
T1 - From porous gold nanocups to porous nanospheres and solid particles - A new synthetic approach
AU - Ihsan, Ayesha
AU - Katsiev, Habib
AU - AlYami, Noktan Mohammed
AU - Anjum, Dalaver H.
AU - Khan, Waheed S.
AU - Hussain, Irshad
N1 - KAUST Repository Item: Exported on 2020-10-01
PY - 2015/5
Y1 - 2015/5
N2 - We report a versatile approach for the synthesis of porous gold nanocups, porous gold nanospheres and solid gold nanoparticles. Gold nanocups are formed by the slow reduction of gold salt (HAuCl4{dot operator}3H2O) using aminoantipyrene (AAP) as a reducing agent. Adding polyvinylpyrrolidone (PVP) to the gold salt followed by reduction with AAP resulted in the formation of porous gold nanospheres. Microwave irradiation of both of these porous gold particles resulted in the formation of slightly smaller but solid gold particles. All these nanoparticles are thoroughly characterized by UV-visible spectroscopy, scanning electron microscopy (SEM), high resolution transmission electron microscopy (HR-TEM) and bright-field tomography. Due to the larger size, porous nature, low density and higher surface area, these nanomaterials may have interesting applications in catalysis, drug delivery, phototherapy and sensing.
AB - We report a versatile approach for the synthesis of porous gold nanocups, porous gold nanospheres and solid gold nanoparticles. Gold nanocups are formed by the slow reduction of gold salt (HAuCl4{dot operator}3H2O) using aminoantipyrene (AAP) as a reducing agent. Adding polyvinylpyrrolidone (PVP) to the gold salt followed by reduction with AAP resulted in the formation of porous gold nanospheres. Microwave irradiation of both of these porous gold particles resulted in the formation of slightly smaller but solid gold particles. All these nanoparticles are thoroughly characterized by UV-visible spectroscopy, scanning electron microscopy (SEM), high resolution transmission electron microscopy (HR-TEM) and bright-field tomography. Due to the larger size, porous nature, low density and higher surface area, these nanomaterials may have interesting applications in catalysis, drug delivery, phototherapy and sensing.
UR - http://hdl.handle.net/10754/564152
UR - https://linkinghub.elsevier.com/retrieve/pii/S002197971500003X
UR - http://www.scopus.com/inward/record.url?scp=84921968152&partnerID=8YFLogxK
U2 - 10.1016/j.jcis.2014.12.091
DO - 10.1016/j.jcis.2014.12.091
M3 - Article
C2 - 25656560
SN - 0021-9797
VL - 446
SP - 59
EP - 66
JO - Journal of Colloid and Interface Science
JF - Journal of Colloid and Interface Science
ER -