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Versatile Phospholipid-like Surfactants for Water Dispersible Nanoparticles
김민정,박중필,윤미진,최경숙,김상욱 한국고분자학회 2011 Macromolecular Research Vol.19 No.7
Versatile phospholipid-like surfactants, composed of phosphate center, hydrophobic alkyl group, and hydrophilic poly(ethylene glycol) group, were synthesized for water-dispersible nanoparticles. They can disperse a range of nanoparticles of semiconductors, metals, and metal oxides in aqueous solutions by simply mixing the hydrophobic nanoparticles and surfactant at room temperature. The precursors and synthetic process are economical and useful for large-scale production. The cytotoxicity was examined on T98G cancer cells, which showed no appreciable toxicity in the cells.
Artificial Stimuli-Response System Capable of Conscious Response
김성찬,노동규,최윤영,우휘제,박중필,이종익,최용석,조새벽,강문성,송영재,정소희,조정호 한국고분자학회 2021 한국고분자학회 학술대회 연구논문 초록집 Vol.46 No.2
Stimulus-response system and conscious response enable humans to respond to environmental changes. Inspired by human conscious response, we presents an artificial stimulus-response system capable of conscious response. The system is composed of an artificial visual receptor, artificial synapse, artificial neuron circuit, and an actuator. The artificial visual receptor with quantum dot layer generates the electrical pulse under light illumination. The artificial synapse with retentive electric double layer processes the electrical pulse signals to strengthen synaptic connections. The CMOS based artificial neuron circuit integrates synaptic output signal to activate the actuator. By incorporating these components, a series of conscious response process is demonstrated which reduces response time as a result of learning process. The demonstrated artificial stimulus-response system offers a promising research field providing an alternative to patients with neurological disorders.