BACKGROUND Endoscopic submucosal dissection (ESD) is currently considered the minimal invasive endoscopic treatment for early gastric cancer. Most superficial gastric neoplastic lesions are depressed type "0-IIc" (70-80%), while totally flat, classified as type "0-IIb" early gastric cancer, is rarely reported (0.4%). The aim of the present study was to assess the efficacy of narrow band imaging...

BACKGROUND AND AIMS The aim of our study was to determine whether chromoendoscopy with indigo carmine significantly improves the detection of adenomas in the distal colon and rectum and therefore could become routine in flexible sigmoidoscopy screening. METHODS Between 2001- 2003, two sigmoidoscopies, the first conventional, the second with chromoendoscopy, were performed in a "back-to-back" ...

We used a sol–gel spin coating technique to synthesize nanocomposite thin films based on zinc oxide (ZnO) loaded with silver nanoparticles (NPs). tested these ZnO/Ag NPs photocatalysts, thickness of about 100 nm, for the photodegradation indigo carmine dye solution. The study focused effects Ag ZnO matrix as well impact their concentration photocatalytic performance nanocomposite. also highligh...

Study a new film prepared via casting mixture of aqueous solutions consists Orange IV and Indigo Carmine dyes embedded poly (vinyl alcohol) for dose monitoring. The may be beneficial in low moderate monitor range from 0 to 60 kGy. undergoes an obvious color change green red on exposure gamma photons nominated it used as label dosimeter. response curve the target depends concentration added chlo...

ZnO nanoparticles have been prepared by a simple method in a short period of time. In this synthetic method, the sample was obtained using Zn(CH3COO)2·2H2O and a new template of hexamine salt. Their crystalline structure and morphology were studied by XRD and SEM. The optical properties of the sample were studied by UV–visible spectroscopy. The absorption spectr...

Two novel symmetrical blue squaraine sensitizers were synthesized, which exhibit panchromatic light harvesting and a record efficiency over 6% with Jsc exceeding 14 mA cm(-2), and Voc over 620 mV under 1 sun. Their color, low cost, easiness of synthesis, and relatively high photo- and thermal stability open up the way for commercial applications.

For the first time, a laminar separation membrane was assembled from atom-thick MoS2 sheets and exhibited a water permeance of 245 L h(-1) m(-2) bar(-1), which was 3-5 times higher than that of graphene oxide membranes without degradation of the rejection ratio (89%) for Evans blue molecules.