Nitrogen-Plasma Treatment of Carbon Nanotubes and Chemical Liquid Phase Deposition of Alumina for Electrodes of Aluminum Electrolytic Capacitors

2012 ◽  
Vol 159 (5) ◽  
pp. A664-A668 ◽  
Author(s):  
Chuen-Chang Lin ◽  
Ruei-Cheng Wei
Keyword(s):  
Carbon Nanotubes ◽  
Liquid Phase ◽  
Plasma Treatment ◽  
Nitrogen Plasma ◽  
Liquid Phase Deposition ◽  
Electrolytic Capacitors ◽  
Aluminum Electrolytic Capacitors

Synthesis of outer tube-selectively nitrogen-doped double-walled carbon nanotubes by nitrogen plasma treatment

Nanoscale ◽  
2018 ◽  
Vol 10 (34) ◽  
pp. 15938-15942 ◽  
Author(s):  
Hiroyuki Muramatsu ◽  
Masahiro Takahashi ◽  
Cheon-Soo Kang ◽  
Jin Hee Kim ◽  
Yoong Ahm Kim ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Plasma Treatment ◽  
Nitrogen Doping ◽  
Nitrogen Plasma ◽  
Outer Tube ◽  
Nitrogen Doped ◽  
Double Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

The selective nitrogen doping of the outer tubes of double walled carbon nanotubes was demonstrated.

Liquid-Phase Deposition of Aligned Carbon Nanotubes Using Cobalt Catalyst

2007 ◽  
Vol 46 (9B) ◽  
pp. 6329-6334 ◽  
Author(s):  
Mikka Nishitani-Gamo ◽  
Takeshi Shibasaki ◽  
Hidenori Gamo ◽  
Kiyoharu Nakagawa ◽  
Toshihiro Ando
Keyword(s):  
Carbon Nanotubes ◽  
Liquid Phase ◽  
Cobalt Catalyst ◽  
Liquid Phase Deposition ◽  
Aligned Carbon Nanotubes

Multi-walled Carbon Nanotubes Reinforced into Hollow Fiber by Chitosan Sol-gel for Solid/Liquid Phase Microextraction of NSAIDs from Urine Prior to HPLC-DAD Analysis

2019 ◽  
Vol 20 (5) ◽  
pp. 390-400 ◽  
Author(s):  
Nabil N. AL-Hashimi ◽  
Amjad H. El-Sheikh ◽  
Rania F. Qawariq ◽  
Majed H. Shtaiwi ◽  
Rowan AlEjielat
Keyword(s):  
Carbon Nanotubes ◽  
Liquid Phase ◽  
Hollow Fiber ◽  
Sol Gel ◽  
Liquid Phase Microextraction ◽  
Extraction Device ◽  
Multi Walled Carbon Nanotubes ◽  
Solid Liquid ◽  
Walled Carbon Nanotubes

Background: The efficient analytical method for the analysis of nonsteroidal antiinflammatory drugs (NSAIDs) in a biological fluid is important for determining the toxicological aspects of such long-term used therapies. Methods: In the present work, multi-walled carbon nanotubes reinforced into a hollow fiber by chitosan sol-gel assisted-solid/ liquid phase microextraction (MWCNTs-HF-CA-SPME) method followed by the high-performance liquid chromatography-diode array detection (HPLC–DAD) was developed for the determination of three NSAIDs, ketoprofen, diclofenac, and ibuprofen in human urine samples. MWCNTs with various dimensions were characterized by various analytical techniques. The extraction device was prepared by immobilizing the MWCNTs in the pores of 2.5 cm microtube via chitosan sol-gel assisted technology while the lumen of the microtube was filled with few microliters of 1-octanol with two ends sealed. The extraction device was operated by direct immersion in the sample solution. Results: The main factors influencing the extraction efficiency of the selected NSAIDs have been examined. The method showed good linearity R2 ≥ 0.997 with RSDs from 1.1 to 12.3%. The limits of detection (LODs) were 2.633, 2.035 and 2.386 µg L-1, for ketoprofen, diclofenac, and ibuprofen, respectively. The developed method demonstrated a satisfactory result for the determination of selected drugs in patient urine samples and comparable results against reference methods. Conclusion: The method is simple, sensitive and can be considered as an alternative for clinical laboratory analysis of selected drugs.

Sign in / Sign up

Export Citation Format

Share Document