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( Sneha Daradmare ),최규환,박범준 한국공업화학회 2019 한국공업화학회 연구논문 초록집 Vol.2019 No.1
In recent years, there have been increasing interest in developing Pickering emulsions due to their potential applications. The Pickering emulsions have similar formulations as like surfactant based emulsions. The difference in the Pickering emulsions is that the surfactants are replaced by the solid particles. The shift from using solid inorganic particles to adopting the particles of biological origin for the stabilization of oil is a new trend in the field of Pickering emulsions. The present study emphasizes the nebulizer method to prepare eco-friendly alginate and modified alginate particles as Pickering stabilizers. Furthermore, we have employed these particles for the stabilization of two different oils. The polymerization of the styrene-emulsions was carried out using a thermal initiator. Also, we studied the behavior of PSMs at oil-water interface.
A Rare Case of Solitary Fibrous Tumor of Maxilla: Findings on F-18 FDG and Ga-68 DOTANOC PET-CT
Sneha Prakash 대한핵의학회 2023 핵의학 분자영상 Vol.57 No.1
Solitary fibrous tumor (SFT) is a rare tumor of mesenchymal origin that most commonly involves the pleura but can befound anywhere in the body. SFT can range from indolent benign tumors to aggressive malignant tumors, and pre-operativediagnosis is based mainly on imaging. In this case report, we describe an extremely rare case of SFT of left maxilla on F-18FDG PET-CT and Ga-68 DOTANOC PET-CT. Very few cases of PET-CT findings in SFT are reported in literature; and toour knowledge, none involving the maxilla. By highlighting the findings on F-18 FDG and GA-68 DOTANOC PET-CT, weaim to further add on to the role of both the tracers in the diagnosis and management of this tumor group.
Sneha Daradmare,Kyu Hwan Choi,Jinsoo Kim,Bum Jun Park 한국공업화학회 2020 Journal of Industrial and Engineering Chemistry Vol.84 No.-
Pickering emulsions based on biologically oriented compounds are highly appreciated in a variety ofapplications, such as food, cosmetics, and pharmaceuticals. Here, we develop the dual ultrasonicnebulizer spray method to efficiently produce alginate particles (APs) that can be used as eco-friendlyand biocompatible Pickering stabilizers. This custom-designed method enables one-step preparation ofchitosan-coated APs (CAPs) and direct encapsulation of magnetic nanoparticles within CAPs. The size ofthe resulting CAPs is about 5 mm in diameter, which is ideal for emulsion stabilizers. Unlike conventionalAPs production based on nozzle spraying, the developed method does not cause clogging problems,allowing large-scale production of APs-based Pickering stabilizers with a narrow size distribution. Inaddition, various CAPs-stabilized Pickering emulsions are demonstrated to be extremely stable againstcoalescence and drying upon exposure to air.
Sneha, Krishnamurthy,Yn, Lee Shi,Yeoung-Sang, Yun American Scientific Publishers 2015 Journal of nanoscience and nanotechnology Vol.15 No.1
<P>We demonstrate the effects extract amount, pH and temperature on the formation of gold nanoparticles (AuNP) using Ocimum santum plant extract. The average AuNP size, shape, and particle number can be controlled by simply varying the pH, temperature and amount of plant extract in the reaction medium. Acidic pH was found to be ideal for the formation of AuNPs. UV-visible spectra for the reaction of the plant extract with 1 mM HAuCl4 solution showed that the highest intensity of surface plasmon resonance (SPR) occurred at pH 3. Transmission electron microscopy (TEM) showed that temperature can be used to control the aspect ratio and the relative amount of gold nanoplatelets (triangular and hexagonal). Increasing the temperature decreased the population of gold nanoplatelets and increased the number of spherical NPs, and nanoplatelet population was found to be highest at 20 degrees C and 30 degrees C.</P>
Sneha Ravi,Kuldeep Rana,Shivangi Kosta 한국전기화학회 2022 한국전기화학회지 Vol.25 No.1
Carbon nanomaterials are considered to be the materials of choice for the fabrication of electrochemical energy storage devices due to their stability, cost-effectiveness, well-established processing techniques, and superior performance compared to other active materials. In the present work, reduced graphene oxide (rGO) has been synthesized and used for the fabrication of a symmetric supercapacitor. The electrochemical performance of the fabricated supercapacitors with three different aqueous electrolytes namely 0.5 M H2SO4, 0.5 M H3PO4, and 1.0M Na2SO4 have been compared and analyzed. Among the three electrolytes, the highest areal specific capacitance of 14 mF/cm2 was calculated at a scan rate of 5 mV/s observed with 0.5M H3PO4 electrolyte. The results were also confirmed from the charge/discharge results where the supercapacitor with 0.5M H3PO4 electrolyte delivered a specific capacitance of 11 mF/cm2 at a current density of 0.16 mA/cm2. In order to assess the stability of the supercapacitor with different electrolytes, the cells were subjected to continuous charge/discharge cycling and it was observed that acidic electrolytes showed excellent cyclic stability with no appreciable drop in specific capacitance as compared to the neutral electrolyte.
Sneha Shaha,Yinglin Gao,Jiahao Peng,Kendrick Che,John J. Kim,Wasseem Skef 대한소화기내시경학회 2023 Clinical Endoscopy Vol.56 No.5
Background/Aims: We aimed to study the effects of sedation on endoscopic ultrasound-guided tissue acquisition. Methods: We conducted a retrospective study evaluating the role of sedation in endoscopic ultrasound-guided tissue acquisition bycomparing two groups: anesthesia care provider (ACP) sedation and endoscopist-directed conscious sedation (CS). Results: Technical success was achieved in 219/233 (94.0%) in the ACP group and 114/136 (83.8%) in the CS group (p=0.0086). Inmultivariate analysis, the difference in technical success between the two groups was not significant (adjusted odds ratio [aOR], 0.5;95% confidence interval [CI], 0.234–1.069; p=0.0738). A successful diagnostic yield was present in 146/196 (74.5%) in the ACP groupand 66/106 (62.3%) in the CS group, respectively (p=0.0274). In multivariate analysis, the difference in diagnostic yield between thetwo groups was not significant (aOR, 0.643; 95% CI, 0.356–1.159; p=0.142). A total of 33 adverse events (AEs) were observed. The incidenceof AEs was significantly lower in the CS group (5/33 CS vs. 28/33 ACP; OR, 0.281; 95% CI, 0.095–0.833; p=0.022). Conclusions: CS provided equivalent technical success and diagnostic yield for malignancy in endoscopic ultrasound-guided tissueacquisition. Increased AEs were associated with anesthesia for the endoscopic ultrasound–guided tissue acquisition.
Per-oral cholangioscopy via a gastric access loop for the management of recurrent hepatolithiasis
Sneha Lad,Suryaprakash Bhandari,Hardik Rajesh Shah,Nilesh Doctor,Roy Patankar,Smita Bhandari 소화기인터벤션의학회 2022 International journal of gastrointestinal interven Vol.11 No.4
This is a case report of the successful management of recurrent large intrahepatic stones using per-oral cholangioscopy via a gastric access loop created surgically during Roux-en-Y hepaticojejunostomy (HJ). A 55-year-old male presented with acute cholangitis. Radiodiagnostic imaging suggested hepatolithiasis in the left hepatic duct. He had experienced similar events on three occasions in the past, for which preliminary conventional endoscopic retrograde cholangiopancreatography and percutaneous transhepatic biliary drainage approaches proved only supportive. Hence definitive surgical treatment was performed with the patient`s consent during his third admission in the form of cholecystectomy, intraoperative retrieval of hepatolithiasis using a rigid ureteroscope, and Roux-en-Y HJ with gastric access loop formation. The gastric conduit facilitated prompt and convenient endoscopic access to enter the intrahepatic ducts and achieve complete ductal clearance using cholangioscopy-guided laser lithotripsy of the large intrahepatic stones. The patient remained asymptomatic at subsequent follow-up visits.
A synopsis of the genus Lepidagathis (Acanthaceae) in India, new taxa and notes on Dalzell’s species
Sneha P. Bramhadande,Mayur D. Nandikar 국립중앙과학관 2023 Journal of Asia-Pacific Biodiversity Vol.16 No.4
Nicolas Alexander Dalzell (1817e1878) described seven species of Lepidagathis (Acanthaceae). Except for Lepidagathis grandiflora, which was later recognized as Calacanthus, all are retained in the genus Lepidagathis. Of these, five are endemic to peninsular India. While exploring Dalzell’s species, we have made field explorations, consulted Lepidagathis collection at different herbaria, and presented here a synopsis of the genus in India. The nomenclature, taxonomy, distribution, and The International Union for Conservation of Nature (IUCN) threat status of Lepidagathis species in India are reviewed. Nomenclature and taxonomic notes on L. cristata and L. cuspidata and the infraspecific taxa in L. pungens, L. incurva are provided. Lepidagathis aristata, a Malaysian species is resurrected; a new name Lepidagathis forskaolii is proposed for the oldest basionym Ruellia aristata. Lepidagathis clavata, L. prostrata, and L. rigida are rare, and only known by a few collections, L. lutea is confined to Konkan and adjoining areas. Lepidagathis cuspidata is collected from its entire geographic range and an overlooked variety, L. cuspidata var. stenostegia is resurrected. Based on live and herbarium collections, a riverine, elliptic-linear-leaved variety elliptica is proposed. Lepidagathis dalzellii, a large flowered new species, allied to L. cuspidata from the United Nations Educational, Scientific and Cultural Organization (UNESCO) World Natural Heritage Site (Kaas plateau, Maharashtra) is also described and illustrated.