Tunable Alkylation of White Graphene (Hexagonal Boron Nitride) Using Reductive Conditions

2019 ◽  
Vol 123 (32) ◽  
pp. 19725-19733
Author(s):  
Carlos A. de los Reyes ◽  
Katharyn Hernández ◽  
Cecilia Martínez-Jiménez ◽  
Kendahl L. Walz Mitra ◽  
Cedric Ginestra ◽  
...  
2019 ◽  
Vol 3 (3) ◽  
pp. 774-785 ◽  
Author(s):  
Deepalekshmi Ponnamma ◽  
Mariam Al Ali Al-Maadeed

Designing a piezoelectric nanogenerator based on ternary polyvinylidene fluoride hexafluoropropylene (PVDF-HFP) nanocomposite containing ceramic BaTiO3 and hexagonal boron nitride nanomaterials.


2016 ◽  
Vol 119 (9) ◽  
pp. 095306 ◽  
Author(s):  
Daniel Velázquez ◽  
Rachel Seibert ◽  
Hamdi Man ◽  
Linda Spentzouris ◽  
Jeff Terry

Nanomaterials ◽  
2018 ◽  
Vol 8 (8) ◽  
pp. 605 ◽  
Author(s):  
Magdalena Jedrzejczak-Silicka ◽  
Martyna Trukawka ◽  
Mateusz Dudziak ◽  
Katarzyna Piotrowska ◽  
Ewa Mijowska

Hexagonal boron nitride is often referred to as white graphene. This is a 2D layered material, with a structure similar to graphene. It has gained many applications in cosmetics, dental cements, ceramics etc. Hexagonal boron nitride is also used in medicine, as a drug carrier similar as graphene or graphene oxide. Here we report that this material can be exfoliated in two steps: chemical treatment (via modified Hummers method) followed by the sonication treatment. Afterwards, the surface of the obtained material can be efficiently functionalized with gold nanoparticles. The mitochondrial activity was not affected in L929 and MCF-7 cell line cultures during 24-h incubation, whereas longer incubation (for 48, and 72 h) with this nanocomposite affected the cellular metabolism. Lysosome functionality, analyzed using the NR uptake assay, was also reduced in both cell lines. Interestingly, the rate of MCF-7 cell proliferation was reduced when exposed to h-BN loaded with gold nanoparticles. It is believed that h-BN nanocomposite with gold nanoparticles is an attractive material for cancer drug delivery and photodynamic therapy in cancer killing.


2013 ◽  
Vol 1 (6) ◽  
pp. 1976-1981 ◽  
Author(s):  
Sung-Kwan Kim ◽  
Hyunjin Cho ◽  
Myung Jong Kim ◽  
Hee-Jun Lee ◽  
Jin-hyung Park ◽  
...  

Author(s):  
Mayank Garg ◽  
Reetu Rani ◽  
Amit L. Sharma ◽  
Suman Singh

Novel use of hexagonal boron nitride quantum dots (hBN QDs) for electrochemical detection of ferritin.


2019 ◽  
Author(s):  
Matěj Velický ◽  
Sheng Hu ◽  
Colin R. Woods ◽  
Peter S. Toth ◽  
Viktor Zólyomi ◽  
...  

Marcus-Hush theory of electron transfer is one of the pillars of modern electrochemistry with a large body of supporting experimental evidence presented to date. However, some predictions, such as the electrochemical behavior at microdisk electrodes, remain unverified. Herein, we present a study of electron tunneling across a hexagonal boron nitride barrier between a graphite electrode and redox levels in a liquid solution. This was achieved by the fabrication of microdisk electrodes with a typical diameter of 5 µm. Analysis of voltammetric measurements, using two common redox mediators, yielded several electrochemical parameters, including the electron transfer rate constant, limiting current, and transfer coefficient. They show a significant departure from the Butler-Volmer behavior in a clear manifestation of the Marcus-Hush theory of electron transfer. In addition, our system provides a novel experimental platform, which could be applied to address a number of scientific problems such as identification of reaction mechanisms, surface modification, or long-range electron transfer.


Sign in / Sign up

Export Citation Format

Share Document