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Synthesis of carbon nanosheet from barley and its use as non-enzymatic glucose biosensor

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Journal of Pharmaceutical Analysis 2014年第6期4卷 351-359页

作者： soma Das Mitali Saha Department of Chemistry National Institute of TechnologyAgartala 799046TripuraIndia

In this work,carbon nanosheet（CNS） based electrode was designed for electrochemical biosensing of *** has been obtained by the pyrolysis of barley at 600-750℃ in a muffle furnace：it was then purified and *** CNS has been characterized by scanning electron microscopy（SEM）.X-ray diffraction（XRD） and Raman spectroscopic *** electrochemical activity of CNS-based electrode was investigated by linear sweep vollammetry（LSV） and square wave voltammetry（SWV）,for the oxidation of glucose in 0.001 M H2SO4（pH 6.0）.The linear range of the sensor was found to be 10-4-10-6M（1-100 μM） within the response time of 4 ***,its sensitivity reached as high as 26.002±0.01 μA/μM *** experiments revealed that the proposed electrode offered an excellent electrochemical activity towards the oxidation of glucose and could be applied for the construction of non-enzymatic glucose biosensors.

关键词： Carbon nanosheet β-D glucose Linear sweep voltammetry Square wave voltammetry Pharmaceutical analysis

State of machine and deep learning in histopathological applications in digestive diseases

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World Journal of Gastroenterology 2021年第20期27卷 2545-2575页

作者： soma Kobayashi Joel H Saltz Vincent W Yang Department of Biomedical Informatics Renaissance School of MedicineStony Brook UniversityStony BrookNY 11794United States Department of Medicine Renaissance School of MedicineStony Brook UniversityStony BrookNY 11794United States Department of Physiology and Biophysics Renaissance School of MedicineStony Brook UniversityStony BrookNY 11794United States

Machine learning(ML)-and deep learning(DL)-based imaging modalities have exhibited the capacity to handle extremely high dimensional data for a number of computer vision *** these approaches have been applied to numerous data types,this capacity can be especially leveraged by application on histopathological images,which capture cellular and structural features with their highresolution,microscopic ***,these methodologies have demonstrated promising performance in a variety of applications like disease classification,cancer grading,structure and cellular localizations,and prognostic predictions.A wide range of pathologies requiring histopathological evaluation exist in gastroenterology and hepatology,indicating these as disciplines highly targetable for integration of these *** have also already been primed to consider the impact of these algorithms,as development of real-time endoscopic video analysis software has been an active and popular field of *** heightened clinical awareness will likely be important for future integration of these methods and to drive interdisciplinary collaborations on emerging *** provide an overview on the application of these methodologies for gastrointestinal and hepatological histopathological slides,this review will discuss general ML and DL concepts,introduce recent and emerging literature using these methods,and cover challenges moving forward to further advance the field.

关键词： Artificial intelligence Machine learning Deep learning Gastroenterology Hepatology Histopathology

Ecology and management of the black inch worm, Hyposidra talaca Walker (Geometridae： Lepidoptera) infesting Camellia sinensis (Theaceae)： A review

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Journal of Integrative Agriculture 2017年第10期16卷 2115-2127页

作者： Somnath Roy soma Das Gautam Handique Ananda Mukhopadhyay Narayanannair Muraleedharan Department of Entomology Tocklai Tea Research Institute Tea Research Association Jorhat 785008 India Entomology Research Unit Department of Zoology University of North Bengal Siliguri 734014 India

The black inch worm, Hyposidra talaca （Walker）（Geometridae： Lepidoptera） has earned considerable importance as a defoliator during last decade in north east India. Characteristic features of H. talaca, Such as switching from wild plants to Camellia sinensis, and completion of 6-8 generations in a year without winter diapause appear to be the major reasons for persistence of the defoliator on C. sinensis. There are reports on the aggressive infestation of the pest on C. sinensis than on alternate host plants and development of high tolerance^resistance to certain insecticides. Till date, more than one hundred alternate host plants have been recorded for H. talaca, but with very few natural enemies. To manage this pest chemically, synthetic pesticides are widely used. Integrated management is recently being encouraged wherein cultural, mechanical, physical, biological and chemical methods have been contemplated. This review collates the work and literature on the ecology of H. talaca and offers an analysis of the problems encountered in managing the defoliator in tea plantations. Further, future directions for better management of H. talaca are suggested.

关键词： Hyposidra talaca black inch worm tea bionomics resistance integrated pest management (IPM)

土豆淀粉基杏仁状炭及其非酶检测蔗糖(英文)

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新型炭材料 2015年第3期30卷 244-251页

作者： soma Das Mitali Saha Department of Chemistry National Institute of Technology

以土豆淀粉为原料,通过先在400-500℃空气中炭化,再于800℃裂解制备出杏仁状炭（CNA）颗粒,并组装成高灵敏度和选择性的非酶蔗糖传感器。采用扫描电镜、X射线衍射仪、X射线光电子能谱仪、原子力和荧光显微镜对样品进行表征。通过循环伏... 详细信息

以土豆淀粉为原料,通过先在400-500℃空气中炭化,再于800℃裂解制备出杏仁状炭（CNA）颗粒,并组装成高灵敏度和选择性的非酶蔗糖传感器。采用扫描电镜、X射线衍射仪、X射线光电子能谱仪、原子力和荧光显微镜对样品进行表征。通过循环伏安、微分脉冲伏安法及线性扫描法在酸性溶液中对蔗糖进行电化学检测。结果表明,这种新传感器对蔗糖氧化呈现良好的响应,具有宽的线性范围（R2=0.996 79）,高灵敏度（~41.737 25±0.01μAμM-1·cm-2）、低的检测限（1μmol/L）,高的稳定性及短的响应时间（9 s）。

关键词：蔗糖循环伏安微分脉冲伏安法线性扫描伏安

Entropy Solution to Nonlinear Elliptic Problem with Non-local Boundary Conditions and L^1-data

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Journal of Partial Differential Equations 2017年第3期30卷 201-220页

作者： OUARO Stanislas soma Safimba Universite Ouaga I Pr Joseph KI-ZERBO LAboratoire de Mathematique et Informa-tique (LAMI) Unite de Formation et de Recherches en Sciences Exactes et Appliqu~esD~artement de Mathematiques 03 BP 7021 Ouaga 03 Ouagadougou Burkina Faso.

We study a nonlinear elliptic problem with non-local boundary conditions and Ll-data. We prove an existence and uniqueness result of an entropy solution.

关键词： Entropy solution non-local boundary conditions Leray-Lions operator.

Forensic Identification of Four Indian Snake Species Using Single Multiplex Polymerase Chain Reaction

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Journal of Forensic Science and Medicine 2022年第3期8卷 81-87页

作者： Ishani Mitra soma Roy Ikramul Haque Division of Biology Central Forensic Science LaboratoryKolkataWest BengalIndia Office of Director Central Forensic Science LaboratoryChandigarhIndia

Among different endangered animal species,snakes are the most neglected creature looked at with apathy and therefore,are ruthlessly killed,illegally trafficked,and poached for their venom,lucrative skin,meat,and bones for manufacturing of medicines,accessories,and food *** the identity of the endangered snake species is important for punishing the offenders under Wildlife Protection Act(WPA)(1972)but morphological characters fail to establish identity as they are often *** technique of identification of snake species at molecular level holds very effective conclusion in punishing ***,we have constructed and demonstrated a novel multiplexing polymerase chain reaction technique,using 16S rRNA and C-mos gene for identification of four Indian snake species,namely Ptyas mucosa,Daboia russellii,Naja naja,and Xenochrophis *** are listed in Appendix-II and III of convention on international trade in endangered species of wild fauna and flora and Schedule II;Part II of Indian WPA,***,it may be considered a functional tool for establishing species-specific identity of four Indian snake species and promising to be useful for their conservation.

关键词： 16S rRNA C-mos forensic identification Indian snakes multiplex polymerase chain reaction amplification Wildlife Protection Act(1972)

Application of Molecular Markers in Wildlife DNA Forensic Investigations

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Journal of Forensic Science and Medicine 2018年第3期4卷 156-160页

作者： Ishani Mitra soma Roy Ikramul Haque DNA Unit Biology DivisionCentral Forensic Science LaboratoryKolkataWest Bengal Directorate of Forensic Science Services Ministry of Home AffairsCGO ComplexNew DelhiIndia

Wildlife DNAForensic isthe application of regular DNAforensic methodsfor proper identification of wildlife parts and their *** advances in molecular genetic studies have generated a new and exciting range of possible applications of genetic methods to wildlife research,conservation,and *** advances have led to an explosion in genetic research on wildlife for their identification at molecular level and have increased interest among researchers working in other scientific disciplines for application of genetic technology in wildlife DNAforensic *** molecular markers have been developed and being routinely used for analysis,such as nuclear markers(variable number of tandem repeats,single-nucleotide polymorphisms),mitochondrial markers(cytochrome b,cytochrome c oxidase subunit I,16S rRNA,12S rRNA,and D‑Loop)and *** soon as,a case is reported under Wildlife Protection Act(1972)the case exhibits are sent to forensic laboratories for proper analysis of species for appropriate application of law.

关键词： Genetic techniques Microsatellites Mitochondrial markers Nuclear markers Wildlife DNA Forensic Wildlife Protection Act 1972

Synthesis of CuInS_2 nanocrystals and their structural transformation triggered by ligand exchange

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Chinese Science Bulletin 2009年第21期54卷 4005-4008页

作者： KATSUHIRO Nose YUKI soma TAKAHISA Omata SHINYA Otsuka-Yao-Matsuo Division of Materials and Manufacturing Science Graduate School of Engineering Osaka University 2-1 Ymadaoka Suita 565-0871 Japan

Chalcopyrite-type CuInS2 NCs was synthesized by the hot-soap method. Mixed solutions, CuI and InCl3 dissolved in the mixture of the tri-octylphosphite and 1-octadecene and the sulfur dissolved in tri-phenylphosphite, were used as source solutions; the hexadecylamine was additionally mixed as a surfactant before the reaction. It was observed that the product CuInS2 NCs structurally transformed from the chalcopyrite(CP)-or zincblende(ZB)-to the wurtzite(WZ)-type depending on the amount of the surfactant and a storage time after the surfactant addition. Very weak photoluminescence in the near-infrared region was observed for the CP-or ZB-type NCs. This band was attributable to the electronhole recombination via defect levels. No photoluminescence was detected for the wurtzite-type NCs.

关键词：电脑合成脑结构配体交换纳米晶体红外光致发光表面活性剂网络电脑引发

Characteristics of inflammatory bowel diseases in patients with concurrent immune-mediated inflammatory diseases

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World Journal of Gastroenterology 2022年第25期28卷 2843-2853页

作者： Shintaro Akiyama soma Fukuda Joshua M Steinberg Hideo Suzuki Kiichiro Tsuchiya Department of Gastroenterology University of TsukubaTsukuba 305-8575IbarakiJapan Inflammatory Bowel Disease Gastroenterology of the RockiesDenverCO 80218United States

Patients with inflammatory bowel disease(IBD)are more likely to have concurrent immune-mediated inflammatory diseases(IMIDs)than those without *** have been observed to alter the phenotype and outcomes of IBD in recent *** studies have found that IBD patients with concurrent IMIDs may have more extensive or severe disease phenotypes,and are considered to be at increased risk of requiring biologics and IBD-related surgeries,suggesting that having multiple IMIDs is a poor prognostic factor for ***,IBD patients with primary sclerosing cholangitis and Takayasu arteritis are reported to have unique endoscopic phenotypes,suggesting concurrent IMIDs can influence IBD phenotype with specific intestinal inflammatory *** this review,we discuss the pathogenesis,disease phenotypes,and clinical outcomes in IBD patients with concomitant IMIDs.

关键词： Inflammatory bowel disease Phenotypes Outcomes Concurrent immunemediated inflammatory diseases