Water-Soluble Magnetic-Functionalized Reduced Graphene Oxide Sheets: In situ Synthesis and Magnetic Resonance Imaging Applications

Small ◽  
2010 ◽  
Vol 6 (2) ◽  
pp. 169-173 ◽  
Author(s):  
Huai-Ping Cong ◽  
Jia-Jun He ◽  
Yang Lu ◽  
Shu-Hong Yu
Keyword(s):  
Magnetic Resonance Imaging ◽  
Graphene Oxide ◽  
Magnetic Resonance ◽  
Reduced Graphene Oxide ◽  
In Situ Synthesis ◽  
Water Soluble ◽  
Resonance Imaging ◽  
Reduced Graphene ◽  
Graphene Oxide Sheets

scholarly journals Microwave-Assisted Synthesis of SPION-Reduced Graphene Oxide Hybrids for Magnetic Resonance Imaging (MRI)

Nanomaterials ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 1364 ◽  
Author(s):  
Marina Llenas ◽  
Stefania Sandoval ◽  
Pedro M. Costa ◽  
Judith Oró-Solé ◽  
Silvia Lope-Piedrafita ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Graphene Oxide ◽  
Magnetic Resonance ◽  
Contrast Agents ◽  
Reduced Graphene Oxide ◽  
Resonance Imaging ◽  
Microwave Assisted ◽  
Reduced Graphene ◽  
Graphene Derivatives ◽  
Magnetic Resonance Imaging Mri

Magnetic resonance imaging (MRI) is a useful tool for disease diagnosis and treatment monitoring. Superparamagnetic iron oxide nanoparticles (SPION) show good performance as transverse relaxation (T2) contrast agents, thus facilitating the interpretation of the acquired images. Attachment of SPION onto nanocarriers prevents their agglomeration, improving the circulation time and efficiency. Graphene derivatives, such as graphene oxide (GO) and reduced graphene oxide (RGO), are appealing nanocarriers since they have both high surface area and functional moieties that make them ideal substrates for the attachment of nanoparticles. We have employed a fast, simple and environmentally friendly microwave-assisted approach for the synthesis of SPION-RGO hybrids. Different iron precursor/GO ratios were used leading to SPION, with a median diameter of 7.1 nm, homogeneously distributed along the RGO surface. Good relaxivity (r2*) values were obtained in MRI studies and no significant toxicity was detected within in vitro tests following GL261 glioma and J774 macrophage-like cells for 24 h with SPION-RGO, demonstrating the applicability of the hybrids as T2-weighted MRI contrast agents.

scholarly journals A novel composite of W18O49 nanorods on reduced graphene oxide sheets based on in situ synthesis and catalytic performance for oxygen reduction reaction

RSC Advances ◽  
2017 ◽  
Vol 7 (4) ◽  
pp. 2051-2057 ◽  
Author(s):  
Jiahao Guo ◽  
Yantao Shi ◽  
Huawei Zhou ◽  
Xuchun Wang ◽  
Tingli Ma
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Catalytic Performance ◽  
Reduction Reaction ◽  
In Situ Synthesis ◽  
Composite Catalyst ◽  
One Pot ◽  
Reduced Graphene ◽  
Graphene Oxide Sheets

A novel composite catalyst based on in situ synthesis of W18O49 nanorods on reduced graphene oxide sheets was successfully fabricated through a one-pot solvothermal route.

scholarly journals In-situ synthesis of Fe2O3/rGO using different hydrothermal methods as anode materials for lithium-ion batteries

2020 ◽  
Vol 59 (1) ◽  
pp. 477-487 ◽  
Author(s):  
Zhuang Liu ◽  
Haiyang Fu ◽  
Bo Gao ◽  
Yixuan Wang ◽  
Kui Li ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Oleic Acid ◽  
Lithium Ion Batteries ◽  
Reduced Graphene Oxide ◽  
Anode Materials ◽  
Lithium Ion ◽  
In Situ Synthesis ◽  
Cycle Performance ◽  
Reduced Graphene

AbstractThis paper studies in-situ synthesis of Fe2O3/reduced graphene oxide (rGO) anode materials by different hydrothermal process.Scanning Electron Microscopy (SEM) analysis has found that different processes can control the morphology of graphene and Fe2O3. The morphologies of Fe2O3 prepared by the hydrothermal in-situ and oleic acid-assisted hydrothermal in-situ methods are mainly composed of fine spheres, while PVP assists The thermal in-situ law presents porous ellipsoids. Graphene exhibits typical folds and small lumps. X-ray diffraction analysis (XRD) analysis results show that Fe2O3/reduced graphene oxide (rGO) is generated in different ways. Also, the material has good crystallinity, and the crystal form of the iron oxide has not been changed after adding GO. It has been reduced, and a characteristic peak appears around 25°, indicating that a large amount of reduced graphene exists. The results of the electrochemical performance tests have found that the active materials prepared in different processes have different effects on the cycle performance of lithium ion batteries. By comprehensive comparison for these three processes, the electro-chemical performance of the Fe2O3/rGO prepared by the oleic acid-assisted hydrothermal method is best.

In situ synthesis of V 2 O 3 nanorods anchored on reduced graphene oxide as high‐performance lithium ion battery anode

2018 ◽  
Vol 3 (43) ◽  
pp. 12108-12112 ◽  
Author(s):  
Xiaoqing Liu ◽  
Dan Zhang ◽  
Guangshe Li ◽  
Chenglin Xue ◽  
Junfang Ding ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Lithium Ion Battery ◽  
Reduced Graphene Oxide ◽  
High Performance ◽  
Lithium Ion ◽  
In Situ Synthesis ◽  
Reduced Graphene ◽  
Battery Anode

One pot in situ synthesis of nano Au–Pd core-shells embedded on reduced graphene oxide for the oxygen reduction reaction

2021 ◽  
Vol 264 ◽  
pp. 114924
Author(s):  
Periyasami Gnanaprakasam ◽  
Aruchamy Gowrisankar ◽  
Shanmugam Senthilkumar ◽  
Arumugam Murugadoss ◽  
Thangavelu Selvaraju ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduced Graphene Oxide ◽  
Reduction Reaction ◽  
In Situ Synthesis ◽  
One Pot ◽  
Reduced Graphene
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