title: Influence of nanosecond pulsed plasma on the non-enzymatic pathway for the generation of nitric oxide from L-arginine and the modification of graphite oxide to increase the solar cell efficiency.
abstract: In this work, we demonstrated the action of nanosecond pulsed plasma (NPP) on the generation of nitric oxide (NO) from the non-enzymatic pathway and on the modification of graphite oxide (GO) sheets to increase polymer solar cells (PSCs) efficiency. NO is an important signal and an effector molecule in animals, which is generated from the enzyme-catalyzed oxidation of L-arginine to NO and L-citrulline. Hence, L-arginine is an important biological precursor for NO formation. Therefore, we developed a new non-enzymatic pathway for the formation of NO and L-citrulline using NPP and characterized the pathway using NO detection kit, NMR, liquid chromatography/capillary electrophoresis-mass spectrometry (LC/CE-MS) for both quantitative and qualitative bioanalysis. We then synthesized and modified the functional groups of GO using NPP, and it was characterised by X-ray photoelectron spectroscopy (XPS), confocal Raman spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM) imaging, cathodoluminescence (CL) and work function using γ-FIB. Further, we also tested the power conversion efficiency of the PSCs devices with modified GO that is similar to the one obtained with poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) as HTL. This work is perceived to have great implications for inexpensive and efficient methodology for NO generation and modification of GO, which are applicable in materials from nanomaterials to biomolecules.
authors: Plasma BioScience Research Center/Department of Electrical and Biological Physics, Kwangwoon University, Seoul, Korea. ehchoi@kw.ac.kr chem.pankaj@gmail.com.
authors: Pankaj
authors: P
authors: Attri
authors: Ji Hoon
authors: JH
authors: Park
authors: Jitender
authors: J
authors: Gaur
authors: Naresh
authors: N
authors: Kumar
authors: Dae Hoon
authors: DH
authors: Park
authors: Su Nam
authors: SN
authors: Jeon
authors: Bong Sang
authors: BS
authors: Park
authors: Suresh
authors: S
authors: Chand
authors: Han Sup
authors: HS
authors: Uhm
authors: Eun Ha
authors: EH
authors: Choi
mesh_terms: D001120:Arginine / Q000138:chemical synthesis*; D011211:Electric Power Supplies; D004798:Enzymes / Q000737:chemistry; D004867:Equipment Design; D019544:Equipment Failure Analysis; D006108:Graphite / Q000737:chemistry*; D008422:Materials Testing; D009569:Nitric Oxide / Q000138:chemical synthesis*; D010087:Oxides / Q000737:chemistry; D058626:Plasma Gases / Q000737:chemistry*; D012993:Solar Energy
chemical_list: D004798:Enzymes; D010087:Oxides; D058626:Plasma Gases; D009569:Nitric Oxide; D006108:Graphite; D001120:Arginine