METHOD FOR PREPARING HIGH DISPERSED CARBON NANOTUBE FOR REDUCING TOXICITY OF IMMUNE CELLS

• Main Authors: WENPING WANG, NAM, TAE HYEON, KIM, SANG HYUN, KHANG, DONG WOO, LEE, SO YOUNG
• Format: Patent
• Language: English; Korean
• Published: 04.05.2012
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; COMPOUNDS THEREOF; INORGANIC CHEMISTRY; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT THEREOF; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; METALLURGY; NANOSTRUCTURES FORMED BY MANIPULATION OF INDIVIDUAL ATOMS,MOLECULES, OR LIMITED COLLECTIONS OF ATOMS OR MOLECULES ASDISCRETE UNITS; NANOTECHNOLOGY; NON-METALLIC ELEMENTS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; THEIR RELEVANT APPARATUS; TRANSPORTING

PURPOSE: A manufacturing method of high-dispersed carbon nanotube for reducing in vivo immune toxicity is provided to enhance dispersibility by performing and repeating ultrasonication. CONSTITUTION: A manufacturing method of high-dispersed carbon nanotube for reducing in vivo immune toxicity comprises next steps: a first step of mixing carbon nanotube in a strong acid solvent in order to introduce a functional group containing oxygen to surface of the carbon nanotube; a second step of carbon nanotube ultrasonication in the solvent; and repeating the first and the second step successively. The strong acid solvent is sulfuric acid, nitric acid, or a mixture thereof. The first step comprises the next step: stirring carbon nanotube in a mixture which has 3:1 ratio of sulfuric acid to nitric acid with a speed of 250-320 RPM for 15-45 minutes.