Interfacial Bridging Strategy for Charge Extraction/Injection in the BiVO4/CoSn-Layered Double Hydroxide p–n Heterojunction Approach Using Graphene Quantum Dots for Enhanced Water Oxidation Kinetics

Author(s):  
Suhaib Alam ◽  
Mohammad Qureshi
Author(s):  
Zhaojie Wang ◽  
Huiyi Yang ◽  
Yuxin Bai ◽  
Liming Cheng ◽  
Rongrong Zhu

Abstract Bone tissue defects caused by disease, trauma, aging or genetic factors emerged as one of the main factors that endanger human health. At present, advanced development of bone tissue engineering and regenerative medicine focused on the biomaterials regulated stem cell for responsive differentiation. In vivo transplantation of allogeneic bone materials has the needs of both osteogenic and immune regulation function. In this study, we utilized the extensively proved biocompatible layered double hydroxide (LDH) nanoparticles as the nanocarrier of graphene quantum dots (GQD), the functional loading was validated by characteristics analysis of scanning electron microscopy, surface zeta potential, X-ray diffraction and fourier transform infrared spectroscopy. Further, we investigated the cellular uptake of nanoparticles in rat bone marrow derived mesenchymal stem cells, the significant enhanced endocytosis was occurred in LDH-GQD treated groups. The enhanced osteogenic differentiation abilities of LDH-GQD were systematically investigated through alkaline phosphatase staining, alizarin red staining and qPCR analysis. In addition, the anti-inflammatory regulation of LDH facilitated the phenotypic transition of macrophage in LDH-GQD nanocomposites. Overall, the successful construction and functional validation of nanomaterials in this study will provide clinical therapeutic potential in bone defects regeneration.


Solar Energy ◽  
2020 ◽  
Vol 199 ◽  
pp. 39-46 ◽  
Author(s):  
Suhaib Alam ◽  
Tushar Kanta Sahu ◽  
Devipriya Gogoi ◽  
Nageswara Rao Peela ◽  
Mohammad Qureshi

2020 ◽  
Vol 44 (41) ◽  
pp. 17744-17752
Author(s):  
Qibing Dong ◽  
Chao Shuai ◽  
Zunli Mo ◽  
Zhenyu Liu ◽  
Guigui Liu ◽  
...  

N-GQDs/NiFe-LDH layered nanosheet structure has excellent OER catalytic performance.


2018 ◽  
Vol 33 (24) ◽  
pp. 4215-4223 ◽  
Author(s):  
Yuwan Han ◽  
Ning Liu ◽  
Nan Wang ◽  
Zhanhang He ◽  
Qingchao Liu

Abstract


2021 ◽  
Author(s):  
Kamellia Nejati ◽  
Leila Jafari Foruzin ◽  
Zolfaghar Rezvani

A well-designed NiCuCr-LDH was prepared using a simple microwave method. According to the OER results, doping optimal amount of Cu2+ into NiCr-LDH displayed superior OER activity, due to decreased bandgap energy and improved charge transfer.


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