From porous gold nanocups to porous nanospheres and solid particles - A new synthetic approach

Ayesha Ihsan, Habib Katsiev, Noktan Alyami, Dalaver H. Anjum, Waheed S. Khan, Irshad Hussain

Research output: Contribution to journalArticlepeer-review

15 Scopus citations


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.

Original languageBritish English
Pages (from-to)59-66
Number of pages8
JournalJournal of Colloid and Interface Science
StatePublished - 5 May 2015


  • Gold nanocups
  • Porous gold nanospheres
  • Porous nanoparticles and tomography


Dive into the research topics of 'From porous gold nanocups to porous nanospheres and solid particles - A new synthetic approach'. Together they form a unique fingerprint.

Cite this