Silver nanoparticles embedded on mesoporous-silica modified reduced graphene-oxide nanosheets for SERS detection of uremic toxins and parathyroid hormone

2020 ◽  
Vol 521 ◽  
pp. 146372 ◽  
Author(s):  
Ruey-Shin Juang ◽  
Yu-Wei Cheng ◽  
Wan-Tzu Chen ◽  
Kuan-Syun Wang ◽  
Chun-Chieh Fu ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Graphene Oxide ◽  
Parathyroid Hormone ◽  
Mesoporous Silica ◽  
Reduced Graphene Oxide ◽  
Uremic Toxins ◽  
Graphene Oxide Nanosheets ◽  
Reduced Graphene ◽  
Sers Detection

Immobilization of gold nanoparticles on folate-conjugated dendritic mesoporous silica-coated reduced graphene oxide nanosheets: a new nanoplatform for curcumin pH-controlled and targeted delivery

Soft Matter ◽  
2018 ◽  
Vol 14 (12) ◽  
pp. 2400-2410 ◽  
Author(s):  
Samira Malekmohammadi ◽  
Hassan Hadadzadeh ◽  
Hossein Farrokhpour ◽  
Zahra Amirghofran
Keyword(s):  
Gold Nanoparticles ◽  
Graphene Oxide ◽  
Folic Acid ◽  
Mesoporous Silica ◽  
Reduced Graphene Oxide ◽  
Targeted Delivery ◽  
Cell Imaging ◽  
Graphene Oxide Nanosheets ◽  
Reduced Graphene ◽  
Gold Nps

A nanocarrier for curcumin targeted delivery and cell imaging was prepared by immobilization of gold NPs on the folic acid-modified dendritic mesoporous silica-coated reduced graphene oxide nanosheets.

scholarly journals Polydopamine-doped virus-like mesoporous silica coated reduced graphene oxide nanosheets for chemo-photothermal synergetic therapy

2020 ◽  
Vol 35 (1) ◽  
pp. 28-38
Author(s):  
Jieying Liao ◽  
Huicong Zhang ◽  
Xuandong Wang
Keyword(s):  
Graphene Oxide ◽  
Mesoporous Silica ◽  
Reduced Graphene Oxide ◽  
Near Infrared ◽  
Photoacoustic Imaging ◽  
Graphene Oxide Nanosheets ◽  
Stratification Method ◽  
Reduced Graphene ◽  
Post Modification

Multifunctional nanocarriers have been widely accepted and utilized for biomedical applications, because of their structural regularity, convenient post-modification and controllable structure and morphology. Herein, we reported polydopamine-doped virus-like mesoporous silica coated reduced graphene oxide nanosheets (rGO@PVMSNs) nanocomposites by a facile oil–water biphase stratification method. The synthesized rGO@PVMSNs nanocomposites performed excellent biocompatibility and photothermal performance. They could be employed as photoacoustic imaging contrast in vivo. Furthermore, the rGO@PVMSNs nanocarriers were used for loading the antitumor drug doxorubicin (DOX), the rGO@PVMSNs@DOX nanocomposites were also demonstrated to be with high inhibition of HepG2 cancer cells, especially with the help of near-infrared irradiation, which were more efficient than single chemotherapy or photothermal therapy. The rGO@PVMSNs@DOX nanocomposites of this work could be used as photoacoustic imaging and chemo-photothermal synergetic therapy agents, which show a new perspective for clinical tumor diagnosis and therapy.

scholarly journals Silver Nanocomposites Decorated Reduced Graphene Oxide Nanosheets for Electrochemical Sensor Applications

2018 ◽  
Vol 34 (6) ◽  
pp. 2872-2877 ◽  
Author(s):  
V. Rama Lakshmi ◽  
J. Balavijayalakshmi
Keyword(s):  
Silver Nanoparticles ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Carbon Nanostructures ◽  
Electrochemical Techniques ◽  
X Ray Diffraction ◽  
Graphene Oxide Nanosheets ◽  
Detection Range ◽  
X Ray ◽  
Reduced Graphene

Recently, metal nanoparticles incorporated carbon nanostructures have tremendous applications in the field of nanosensor and technologies. In the proposed work, silver nanoparticles (Ag) decorated reduced graphene oxide nanosheets (rGONS) (rGONS-Ag) are synthesized and developed for the sensitive detection of ortho-Nitrophenol (o-NP) using electrochemical techniques. The rGONS-Ag nanocomposites are synthesized through chemical reduction method. The physical and electrochemical behaviour of the synthesized rGONS-Ag nanocomposites are characterized by using Fourier-transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), Scanning electron microscope (SEM), Energy dispersive X-ray spectroscopy (EDAX), Transmission electron microscopy (TEM) and Cyclic voltammetry (CV) techniques. The X-ray diffraction analysis reveals the formation of well crystalline silver nanoparticles (AgNp’s) on the surface of rGO nanosheets with the crystallite size of about 22.775 nm. The morphological analysis reveals the formation of well distributed cubic shape AgNp’s on the surface of rGO nanosheets. The rGONS‐Ag nanocomposites modified glassy carbon electrode (GCE) shows the good electrochemical detection performance for ortho-Nitrophenol (o-NP) with the linear detection range from 2 mM to 8 mM and with the sensitivity of about 0.221 mA mM-1 cm-2.

Hybrid two-dimensional nickel oxide-reduced graphene oxide nanosheets for supercapacitor electrodes

2021 ◽  
Vol 164 ◽  
pp. 105979
Author(s):  
Xin Gao ◽  
Hengwei Zhang ◽  
Erjun Guo ◽  
Fei Yao ◽  
Zengze Wang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Nickel Oxide ◽  
Reduced Graphene Oxide ◽  
Two Dimensional ◽  
Graphene Oxide Nanosheets ◽  
Reduced Graphene
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