Browsing by Author Sai, Cong Doanh

Jump to: 0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
or enter first few letters:  
Showing results 1 to 3 of 3
  • 32.pdf.jpg
  • Article


  • Authors: Sai, Cong Doanh; Luu, Manh Quynh (2015)

  • In recent years, glucose oxidase (GOx) based sugar level detecting techniques have been intensively developed. In order to improve the diagnosis and desease treatment in low- and middle-income countries, the low cost, easily processing, but still high sensitive sensing systems/equipments play a very important rules in biomedicine and life science. In this work, lead sulfide (PbS) nanocolloids were used as electron receptor. The results showed that the sensitivity of the glucose sensor reached 546.2 μA cm-2 mM-1. It is note that, some early works on GOx based glucose sensor only reached sensitivity less than 100 μA cm-2 mM-1.

  • 4217-97-8098-1-10-20171016.pdf.jpg
  • Article


  • Authors: Sai, Cong Doanh; Pham, Nguyen Hai; Ngac, An Bang (2017)

  • Lead sulfide (PbS) and Au-PbS core-shell nanoparticles were successfully synthesized using the sonochemical method at room temperature. The morphology of the synthesized particles was characterized by FESEM and TEM images. Pure fcc phase of PbS and Au crystal structures was examined and confirmed by XRD patterns. The quantum confinement effect plays a crucial role in blue-shifting the absorption edge and the band gap energy of both solid PbS nanoparticles and a thin spherical PbS shell toward shorter wavelength region in comparison to those of PbS bulk. Due to the high refractive index of PbS shell, Surface Plasmon Resonance (SPR) peak of Au nanocores is significantly red-shifted by r...

  • 4233-97-8199-1-10-20180103.pdf.jpg
  • Article


  • Authors: Sai, Cong Doanh; Pham, Nguyen Hai; Ngac, An Bang (2017)

  • Cuprous oxide (Cu2O) and Au-Cu2O core-shell nanoparticles were successfully synthesized using the chemical reduction method. The morphology of the synthesized pure Cu2Oparticles can be controlled by varying the amount of reducing agent NH2OH.HCl. Due to their similar crystal structure and relatively small lattice mismatch Cu2O particles are nucleated and locally undergo an epitaxial growth on the surface of the multi-faceted Au seed resulting in a stellated icosahedra Au-Cu2O core-shell particle. The extinction spectrum of Cu 2O particles offew hundred-nm in size is dominated by light scattering, while that of the stellated icosahedra Au-Cu2O core-shell part...

Browsing by Author Sai, Cong Doanh

Jump to: 0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
or enter first few letters:  
Showing results 1 to 3 of 3
  • 32.pdf.jpg
  • Article


  • Authors: Sai, Cong Doanh; Luu, Manh Quynh (2015)

  • In recent years, glucose oxidase (GOx) based sugar level detecting techniques have been intensively developed. In order to improve the diagnosis and desease treatment in low- and middle-income countries, the low cost, easily processing, but still high sensitive sensing systems/equipments play a very important rules in biomedicine and life science. In this work, lead sulfide (PbS) nanocolloids were used as electron receptor. The results showed that the sensitivity of the glucose sensor reached 546.2 μA cm-2 mM-1. It is note that, some early works on GOx based glucose sensor only reached sensitivity less than 100 μA cm-2 mM-1.

  • 4217-97-8098-1-10-20171016.pdf.jpg
  • Article


  • Authors: Sai, Cong Doanh; Pham, Nguyen Hai; Ngac, An Bang (2017)

  • Lead sulfide (PbS) and Au-PbS core-shell nanoparticles were successfully synthesized using the sonochemical method at room temperature. The morphology of the synthesized particles was characterized by FESEM and TEM images. Pure fcc phase of PbS and Au crystal structures was examined and confirmed by XRD patterns. The quantum confinement effect plays a crucial role in blue-shifting the absorption edge and the band gap energy of both solid PbS nanoparticles and a thin spherical PbS shell toward shorter wavelength region in comparison to those of PbS bulk. Due to the high refractive index of PbS shell, Surface Plasmon Resonance (SPR) peak of Au nanocores is significantly red-shifted by r...

  • 4233-97-8199-1-10-20180103.pdf.jpg
  • Article


  • Authors: Sai, Cong Doanh; Pham, Nguyen Hai; Ngac, An Bang (2017)

  • Cuprous oxide (Cu2O) and Au-Cu2O core-shell nanoparticles were successfully synthesized using the chemical reduction method. The morphology of the synthesized pure Cu2Oparticles can be controlled by varying the amount of reducing agent NH2OH.HCl. Due to their similar crystal structure and relatively small lattice mismatch Cu2O particles are nucleated and locally undergo an epitaxial growth on the surface of the multi-faceted Au seed resulting in a stellated icosahedra Au-Cu2O core-shell particle. The extinction spectrum of Cu 2O particles offew hundred-nm in size is dominated by light scattering, while that of the stellated icosahedra Au-Cu2O core-shell part...