Abstract
Systems existing in nature have evolved to operate efficiently over a long period of time, enabling efficient material transformation and processing. These natural systems provide hints for the synthesis of metal nanoparticles through efficient electron generation and transport towards metal ions for the reduction process. In this study, based on the efficient electron transfer mechanism between tryptophan (Trp) in the living body, the possibility of advanced silver patterning on flexible substrates has been presented through laser-direct writing. Irradiation of a low-power laser on the precursor induces the reduction of silver ions to nanoparticles. The sintering of these generated nanoparticles induces a silver conductive pattern by a photothermal/chemical reaction. The method of this study has strength as it supports the possibility of conductive pattern fabrication on various substrates (e.g., glass and PDMS) using a silver-based organic ink with low laser power compared to the conventional nanoparticle-based sintering method. It also suggests its suitability to various applications in terms of sophisticated pattern fabrication with minimized substrate denaturation.
Highlights
Pattern Fabrication throughDue to the rapid growth in nanotechnologies and extensive applications in various fields, significant concerns about environmental impacts, such as the recycling of nano products, have emerged regarding the toxicity during synthesis and post-processing [1,2].For the formation of nanoparticles, metal nanoparticles can be synthesized using photoreduction [3,4], laser ablation [5], chemical reduction in aqueous media [6], and compound reduction in soft/solid matrices
As the laserby irradiated the precursor an electrically conductive patternof could be of nanoparticles photoreduction through film, electron generation and efficient transfer an electronthrough to silver ions
The gelatin affected the dispersion of nanoparticles and the coating and a fabricated a one-step process, which was successive nanoparticle synthesis quality of the precursor laser processing
Summary
Pattern Fabrication throughDue to the rapid growth in nanotechnologies and extensive applications in various fields, significant concerns about environmental impacts, such as the recycling of nano products, have emerged regarding the toxicity during synthesis and post-processing [1,2].For the formation of nanoparticles, metal nanoparticles can be synthesized using photoreduction [3,4], laser ablation [5], chemical reduction in aqueous media [6] (which is composed of other polymer surfactants and reducing agents), and compound reduction in soft/solid matrices. Due to the rapid growth in nanotechnologies and extensive applications in various fields, significant concerns about environmental impacts, such as the recycling of nano products, have emerged regarding the toxicity during synthesis and post-processing [1,2]. Toxic substances are required, or hazardous materials can be generated, during the process [7]. From this point of view, the green synthesis of metal nanoparticles using nature-derived materials is attractive to the generation of synthesis methods due to the use of soluble, non-toxic chemicals, which are environmentally friendly, cost-effective, and relatively reproducible. Numerous chemical/physical synthesis methods for silver nanoparticles that use a non-toxic method in an aquatic environment were proposed [10,14]. Studies on the morphology control of synthesized nanoparticles have been performed [15]
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