Results 21 to 30 of about 43,885 (259)

Raman spectra of bilayer graphene covered with Poly(methyl methacrylate) thin film

AIP Advances, 2012
The Raman spectra of bilayer graphene covered with poly(methyl methacrylate) (PMMA) were investigated. Both the G and 2D peaks of PMMA-coated graphene were stiff and broad compared with those of uncovered graphene.
Minggang Xia, Zhidan Su, Shengli Zhang
doaj   +1 more source

A protocol to execute a lab-on-chip platform for simultaneous culture and electrochemical detection of bacteria

STAR Protocols, 2023
Summary: Here, we present a protocol for a miniaturized microfluidic device that enables quantitative tracking of bacterial growth. We describe steps for fabricating a screen-printed electrode, a laser-induced graphene heater, and a microfluidic device ...
Sonal Fande, Sangam Srikanth, Jayapiriya U S, Khairunnisa Amreen, Satish Kumar Dubey, Arshad Javed, Sanket Goel   +6 more
doaj   +1 more source

Stacking-dependent band gap and quantum transport in trilayer graphene [PDF]

, 2011
Graphene is an extraordinary two-dimensional (2D) system with chiral charge carriers and fascinating electronic, mechanical and thermal properties. In multilayer graphene, stacking order provides an important yet rarely explored degree of freedom for ...
M. Bockrath, Lau, C N, W. Bao, D. Smirnov, Aykol, M, McCann, Edward, E. McCann, D. Tran, M. Aykol, B. Standley, Cronin, S B, Lee, Y, Velasco Jr, J, Bao, W, G. Liu, Bockrath, M, Koshino, Mikito, Smirnov, D, J. Velasco, L. Jing, C. N. Lau, S. B. Cronin, Liu, G, Y. Lee, Jing, L, Tran, D, M. Koshino, Standley, B   +27 more
core   +1 more source

Laser-Induced Graphene-Based Electrochemical Sensor for 4-Nitrophenol from Polyimide and Polyethersulfone Precursors

, 2022
Electrochemical sensors provide an excellent alternative for the in-situ detection of pollutants in water. 4-Nitrophenol is a critical pollutant owing to its acute toxicity and adverse health effects on humans and other living organisms.
Siddhartha P., Duttagupta, Swatantra P., Singh, Vikram P., Wanjari, Ashish, Kumar   +3 more
core   +1 more source

Weak mismatch epitaxy and structural feedback in graphene growth on copper foil [PDF]

, 2013
Graphene growth by low-pressure chemical vapor deposition on low cost copper foils shows great promise for large scale applications. It is known that the local crystallography of the foil influences the graphene growth rate.
Wilson, Neil R., Costantini, Giovanni, White, T. W., Marc Walker, Partridge, Cerianne, Sánchez, Ana M., Mudd, James J., Renald Schaub, Neil R. Wilson, Ana M. Sanchez, Barinov, Alexei, Walker, Marc, Pavel Dudin, Marsden, Alexander J., Mohammed Saghir, Bromley, Catherine J., Thomas W. White, James J. Mudd, Giovanni Costantini, Cerianne Partridge, Alexei Barinov, Catherine J. Bromley, Bell, Gavin R., Saghir, Mohammed, Gavin R. Bell, Bromley, Catherine, Dudin, Pavel, White, Thomas W., Saghir, Mohammad, Schaub, Renald, Alexander J. Marsden   +30 more
core   +1 more source

Research Progress on the Preparation and Applications of Laser-Induced Graphene Technology

Nanomaterials, 2022
Graphene has been regarded as a potential application material in the field of new energy conversion and storage because of its unique two-dimensional structure and excellent physical and chemical properties.
Yani Guo, Cheng Zhang, Ye Chen, Zhengwei Nie   +3 more
doaj   +1 more source

Interlayer separation by laser-induced functionalized graphene for photoluminescence enhancement of graphene/MoS2 heterostructures

, 2023
Tuning the optoelectronic properties of monolayer MoS2 (1L-MoS2) is highly desired for optoelectronic applications, such as molecular sensors. Stable structures that can be reproducibly fabricated are essential for this, and the mechanism leading to the ...
Qing, Cao, Marleen, Hußmann, Siegfried, Eigler, Yalei, Hu   +3 more
core   +1 more source

Laser induced self-N-doped porous graphene as an electrochemical biosensor for femtomolar miRNA detection

, 2020
We report a sensitive, yet low-cost biosensor based on laser induced graphene for femtomolar microRNA (miRNA) detection. Combined with the miRNA extraction and magnetic isolation process, the target miRNAs were purified for further detection using laser ...
Shiddiky, Muhammad JA, Umer, Muhammad, Wan, Zhengfen, Lobino, Mirko, Trinchi, Adrian, Li, Qin, Nam-Trung, Nguyen, Thiel, David, Gao, Yongsheng   +8 more
core   +1 more source

Graphene functionalised by laser-ablated V2O5 for a highly sensitive NH3 sensor

Beilstein Journal of Nanotechnology, 2017
Graphene has been recognized as a promising gas sensing material. The response of graphene-based sensors can be radically improved by introducing defects in graphene using, for example, metal or metal oxide nanoparticles. We have functionalised CVD grown,
Margus Kodu, Artjom Berholts, Tauno Kahro, Mati Kook, Peeter Ritslaid, Helina Seemen, Tea Avarmaa, Harry Alles, Raivo Jaaniso   +8 more
doaj   +1 more source

Field Electron Emission from Crumpled CVD Graphene Patterns Printed via Laser-Induced Forward Transfer

Nanomaterials, 2022
A new approach to the fabrication of graphene field emitters on a variety of substrates at room temperature and in an ambient environment is demonstrated.
Maxim Komlenok, Nikolay Kurochitsky, Pavel Pivovarov, Maxim Rybin, Elena Obraztsova   +4 more
doaj   +1 more source