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

Pankaj Attri, Ji Hoon Park, Jitender Gaur, Naresh Kumar, Dae Hoon Park, Su Nam Jeon, Bong Sang Park, Suresh Chand, Han Sup Uhm, Eun Ha Choi

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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.

Original languageEnglish
Pages (from-to)18375-18382
Number of pages8
JournalPhysical Chemistry Chemical Physics
Volume16
Issue number34
DOIs
Publication statusPublished - Aug 6 2014
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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