Simple Preparation of Carbon Nanofibers with Graphene Layers Perpendicular to the Length Direction and the Excellent Li-Ion Storage Performance

Sulfur-containing carbon nanofibers with the graphene layers approximately vertical to the fiber axis were prepared by a simple reaction between thiophene and sulfur at 550 °C in stainless steel autoclaves without using any templates. The formation mechanism was discussed briefly, and the potential application as anode material for lithium-ion batteries was tentatively investigated. The carbon nanofibers exhibit a stable reversible capacity of 676.8 mAh/g after cycling 50 times at 0.1 C, as well as the capacities of 623.5, 463.2, and 365.8 mAh/g at 0.1, 0.5, and 1.0 C, respectively. The excellent electrochemical performance could be attributed to the effect of sulfur. On one hand, sulfur could improve the reversible capacity of carbon materials due to its high theoretical capacity; on the other hand, sulfur could promote the formation of the unique carbon nanofibers with the graphene layers perpendicular to the axis direction, favorable to shortening the Li-ion diffusion path

Vimentin is a potential prognostic factor for tongue squamous cell carcinoma among five epithelial–mesenchymal transition-related proteins - Fig 2

<p>Kaplan-Meier survival curves for disease-specific survival according to (A) Snail expression status, (B) Twist expression status, (C) E-cadherin expression status, (D) N-cadherin expression status, and (E) Vimentin expression status in TSCC patients. Kaplan-Meier curves for disease-free survival according to (F) Snail expression status, (G) Twist expression status, (H) E-cadherin expression status, and (I) N-cadherin expression status.</p

Immunoreactivity of Snail, Twist, E-cadherin, N-cadherin and Vimentin in TSCC.

<p>(A) The representative photomicrographs for negative (–), weak (+), moderate (++) and strong (+++) staining of Snail, Twist, E-cadherin, N-cadherin and Vimentin in TSCC tissues. (B) Comparative representative photomicrographs of Snail, Twist, E-cadherin, N-cadherin and Vimentin between normal and TSCC tissues. (C) The representative photomicrographs of TMA sections for Snail, Twist, E-cadherin, N-cadherin and Vimentin staining.</p

The comparisons of Snail, Twist, E-cadherin, N-cadherin, and Vimentin expression with various demographic and pathologic outcomes in TSCC patients.

<p>The comparisons of Snail, Twist, E-cadherin, N-cadherin, and Vimentin expression with various demographic and pathologic outcomes in TSCC patients.</p

The expression levels of Snail, Twist, E-cadherin, N-cadherin, and Vimentin for disease-specific survival and disease-free survival of TSCC patients.

<p>The expression levels of Snail, Twist, E-cadherin, N-cadherin, and Vimentin for disease-specific survival and disease-free survival of TSCC patients.</p

The pairwise comparisons of Snail, Twist, E-cadherin, N-cadherin, and Vimentin expression between TSCC and corresponding tumor adjacent normal tissues.

<p>The pairwise comparisons of Snail, Twist, E-cadherin, N-cadherin, and Vimentin expression between TSCC and corresponding tumor adjacent normal tissues.</p

Multivariate Cox’s regression analysis of Snail, Twist, E-cadherin, N-cadherin, and Vimentin for disease-specific survival and disease-free survival of TSCC patients.

<p>Multivariate Cox’s regression analysis of Snail, Twist, E-cadherin, N-cadherin, and Vimentin for disease-specific survival and disease-free survival of TSCC patients.</p