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1
Surgical outcomes of endoscopic versus open resection for the management of sinonasal malignancies

Balamurugan Rajendran 대한구강악안면외과학회 2020 대한구강악안면외과학회지 Vol.46 No.6
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 ScienceON
 
 KCI
 
 스콜라
The purpose of this review is to assess the surgical outcomes of two different treatment modalities, endoscopic and open resection, for the management of sinonasal malignancies by comparing the effectiveness of these two methods. A wide search was carried out considering various electronic databases for English language articles from 2013 to 2018 using keywords such as sinonasal malignancies, endoscopic surgery, open resection for sinonasal malignancies, and endoscopic versus open surgery. One thousand articles were identified from the literature for screening. After a thorough systematic assessment and based on the selection criteria, 10 articles with 4,642 patients were included in this quantitative analysis. With a total of 4,642 patients, 1,730 patients were operated on using endoscopic resection and 2,912 patients were operated on using open resection. The endoscopic approach was found to have a shorter hospital stay compared to open surgical resection (P<0.05). The rate of positive margins and the recurrence rate for open surgical resection were both smaller compared to those for endoscopic resection (P>0.05), and the endoscopic approach had smaller complication rates and a higher survival rate compared to open resection (P>0.05). Though endoscopic resection and open surgical resection have comparable postoperative benefits, preoperative evaluation of cases presenting with sinonasal malignancies is necessary for determining the right treatment method to obtain the best possible results postoperatively.
2
Novel polyaniline/manganese hexacyanoferrate nanoparticles on carbon fiber as binder-free electrode for flexible supercapacitors

Babu, Rajendran Suresh,de Barros, Ana Lucia Ferreira,de Almeida Maier, Mariana,da Motta Sampaio, Daniel,Balamurugan, Jayaraman,Lee, Joong Hee Elsevier 2018 Composites Part B, Engineering Vol.143 No.-
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Abstract To accomplish high-performance flexible energy storage devices, a new class of flexible electrodes with prosperous constructions bearing exceptional electrical conductivity, exclusive porosity, and outstanding mechanical stability is extremely needed. Here, we have successfully fabricated a highly flexible electrode with nanocomposite of polyaniline/manganese hexacyanoferrate PANI/MnHCF nanocomposite (PANI/MnHCF) on highly conductive carbon fiber (FCF). The nanocomposite exhibits an ultra-high specific capacitance of 730 F g−1 at a current density of 1 A g−1 with exceptional rate capability (350 F g−1 capacitance retention at a current density of 20 A g−1 ), and outstanding cycling performance (capacitance retention of ∼85% after 1000 cycles). The PANI/MnHCF/FCF electrode shows better electrochemical performance due to their exclusive properties such as excellent electrical conductivity, unique porous network and outstanding mechanical flexibility. Furthermore, the higher surface area of PANI/MnHCF nanocomposite facilitates the transport of electrons and electrolyte ions during rapid charge/discharge process. This present work offers a simple, scalable and cost-effective method for fabrication of other PANI/MnHCF nanocomposite based electrode, which is applicable for providing energy in practical flexible portable devices. Highlights <UL> <LI> PANI/MnHCF nanoparticles decorated on FCF by simple one-step co-polymerization method. </LI> <LI> The fabricated flexible and binder-free nanocomposite enhances the electrochemical performance. </LI> <LI> The nanocomposite electrode exhibits excellent rate capability and outstanding cycling performance. </LI> </UL> Graphical abstract [DISPLAY OMISSION]