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| 1 | Fabrication and study of supercapacitor electrodes based on oxygen plasma functionalized carbon nanotube fibers显示文摘Dry-spun Carbon Nanotube(CNT)fibers were surface-modified by atmospheric pressure oxygen plasma functionalization using a well controlled and continuous process.The fibers were characterized by scanning electron microscopy(SEM),Raman spectroscopy,and X-ray Photoelectron Spectroscopy(XPS).It was found from the conducted electrochemical measurements that the functionalized fibers showed a 132.8% increase in specific capacitance compared to non-functionalized fibers.Dye-adsorption test and the obtained Randles-Sevcik plot demonstrated that the oxygen plasma functionalized fibers exhibited increased surface area.It was further established by Brunauer-Emmett-Teller(BET)measurements that the surface area of the CNT fibers was increased from 168.22 m^2/g to 208.01 m^2/g after plasma functionalization.The pore size distribution of the fibers was also altered by this processing.The improved electrochemical data was attributed to enhanced wettability,increased surface area,and the presence of oxygen functional groups,which promoted the capacitance of the fibers.Fiber supercapacitors were fabricated from the oxygen plasma functionalized CNT fiber electrodes using different electrolyte systems.The devices with functionalized electrodes exhibited excellent cyclic stability(93.2% after 4000 cycles),flexibility,bendability,and good energy densities.At 0.5 m A/cm^2,the EMIMBF4 device revealed a specific capacitance,which is 27% and 65%greater than the specific capacitances of devices using EMIMTFSI and H2SO4 electrolytes,respectively.The practiced in this work plasma surface processing can be employed in other applications where fibers,yarns,ribbons,and sheets need to be chemically modified. | Paa Kwasi Adusei Seyram Gbordzoe Sathya Narayan Kanakaraj Yu-Yun Hsieh Noe T.Alvarez Yanbo Fang Kevin Johnson Colin McConnell Vesselin Shanov | 2020 | Journal of Energy Chemistry2020，29，1： | 4 |
| 2 | Preliminary study on modelling, fabrication by photo-chemical etching and in vivo testing of biodegradable magnesium AZ31 stents显示文摘Magnesium metal(Mg)is a promising material for stent applications due to its biocompatibility and ability to be resorbed by the body.Manufacturing of stents by laser cutting has become an industry standard.Our alternative approach uses photo-chemical etching to transfer a pattern of the stent onto a Mg sheet.In this study,we present three stages of creating and validating a stent prototype,which includes design and simulation using finite element analysis(FEA),followed by fabrication based on AZ31 alloy and,finally,in vivo testing in peripheral arteries of domestic pigs.Due to the preliminary character of this study,only six stents were implanted in two domestic farm pigs weighing 25-28 kg and they were evaluated after 28 days,with an interim follow-up on day 14.The left and right superficial femoral,the left iliac,and the right renal artery were selected for this study.The diameters of the stented artery segments were evaluated at the time of implantation,on day 14 and then,finally,on day 28,by quantitative vessel analysis(QVA)using fluoroscopic imaging.Optical Coherence Tomography(OCT)imaging displayed some malposition,breaks,stacking,and protrusion into the lumen at the proximal,distal,and mid-sections of the stented arteries.The stents degraded with time,but simultaneously became embedded in the intima.After 28 days,the animals were euthanized,and explanted vessels were fixed for micro-CT imaging and histology studies.Micro-CT imaging revealed stent morphological and volumetric changes due to the in-body degradation.An in vivo corrosion rate of 0.75 mm/year was obtained by the CT evaluation.The histology suggested no-life threatening effects,although moderate injury,inflammation,and endothelialization scores were observed. | Bala Subramanya Pavan Kumar Kandala Guangqi Zhang Capucine LCorriveau Mark Paquin Madeleine Chagnon Dana Begun Vesselin Shanov | 2021 | Bioactive Materials2021，6，6： | 2 |
| 3 | Electrochemical impedance measurement of prostate cancer cells using carbon nanotube array electrodes in a microfluidic channel 显示文摘 | Yun Y Dong Z Y Shanov V N | 2007 | Nanotechnology2007，18，46： | 1 |
| 4 | High sensitivity carbon nanotube tower electrodes 显示文摘 | YunY Shanov V Schulz M J | 2006 | Sensors and Actuators B2006，120，： | 1 |
| 5 | A multi-wall carbon nanotube tower electrochemical actuator 显示文摘 | Yun Y Shanov V Tu Y | 2006 | Nano Letters2006，6，4： | 1 |
| 6 | Erosion resistance of superalloys and different coatings exposed to particulate flows at high temperature 显示文摘 | Tabakoff W Shanov V | 1999 | Surface and Coatings Technology1999，121，1： | 1 |
| 7 | Bax and Bcl-XL apoptosis protein mRNA in rat brain stemand cortex during outogeny 显示文摘 | Bannova AV Men'shanov PN Ilinykh FA Kalinina TS Dygalo NN | 2005 | Bull Exp Biol Med2005，139，6： | 1 |
| 8 | Introduction to carbon nanotube and nanofiber smart materials显示文摘 | Inpil Kang Yun Yeo Heung Jay H. Kim Jong Won Lee Ramanand Gollapudi Srinivas Subramaniam Suhasini Narasimhadevara Douglas Hurd Goutham R. Kirikera Vesselin Shanov Mark J. Schulz Donglu Shi Jim Boerio Shankar Mall Marina Ruggles-Wren | 2006 | Composites Part B2006，，6： | 1 |
| 9 | Electromagnetic simulation and measurement of carbon nanotube thread dipole antennas显示文摘 | Keller S D Zaghloul A I Shanov V | 2014 | Nanotechnology IEEE Transactions on2014，13，： | 1 |
| 10 | Passive damping of carbon nanotube thread显示文摘 | HEHR A SCHULZ M SHANOV V | 2013 | Journal of Intelligent Material Systems Structures2013，25，： | 1 |
| 11 | Carbon nanotubes grown on stainless steel to form plate and probe electrodes for chemical/biological sensing 显示文摘 | Yun Y Gollapudi R Shanov V | 2007 | Journal of Nanoscience and Nanotechnology2007，7，3： | 1 |
| 12 | Raman spectroscopy study of the influence of processing conditions on the structure of polycrystalline diamond films显示文摘 | RAMAMURTI R SHANOV V SINGH R N | 2006 | Journal of Vacuum Science ~ Technology2006，24，2： | 1 |
| 13 | Bax and Bel - XL apoptosis protein mRNA in rat brain stem andcortex during ontogeny显示文摘 | BANNOVA A V MEN'SHANOV P N IL'INYKH F A | 2005 | Bull Exp Biol Med2005，139，6： | 1 |
| 14 | High purity biodegradable magnesium coating for implant application 显示文摘 | Salunke P Shanov V Witte F | 2011 | Materials Science and Engineering: B2011，176，20： | 1 |
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