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Novel Design of Ring Resonator Based Temperature Sensor Using Photonics Technology

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Photonic Sensors 2017年第4期7卷 311-316页

作者： Mas soudi RADHOUENE mayur kumar CHHIPA Monia NAJJAR S. ROBINSON Bhuvneshwer SUTHAR University of Tunis El Manar National Engineering School of Tunis Communications Systems LR-99-ES21(LR-Sys'Com-ENIT) Tunis 1002 Tunisia Department of Electronics & Communication Engineering K L University Guntur Andhra Pradesh 522502 India University of Tunis El Manar Higher Institute of Computer Ariana 2080 Tunisia Department of Electronics & Communication Engineering Mount Zion College of Engineering and TechnologyPudukkottai Tamil Nadu 622507 India Department of Physics Govt. Engineering College Bikaner Rajasthan 334004 India

In the present paper, we study the transmission of the two-dimensional photonic crystal （PC） superellipse ring resonator. The fast growing applications of optomechanical systems lead to strong demands in new sensing mechanism in order to design the sensing elements to nanometer scale. The photonic crystal based resonator has been investigated as promising solutions because the band gap structure and resonator characteristics are extremely sensitive to the deformation and position shift of rod/cavity in PC resonators. This structure opens a single channel filter. The study is extended for tuning of channel filter＇s wavelength with a temperature of this structure. The transmission of the channel filter shows a red shift with temperature linearly. This wavelength shift of the channel filter is used for the sensor application. The sensitivity for the proposed structure is found to be 65.3pm/℃. The outstanding sensing capability renders PC resonators as a promising optomechanical sensing element to be integrated into various transducers for temperature sensing applications.

关键词： Photonic crystal ring resonator temperature sensor finite difference time domain PWE method

Multilocular thymic cysts-a diagnostic challenge on computed tomography

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World Journal of Clinical Cases 2025年第3期13卷 61-65页

作者： Nirmal kumar Reddy Onteddu Naga Sai Rasagna Mareddy Sai Swarupa R Vulasala Jayabharath Onteddu mayur Virarkar Department of Internal Medicine University of Florida College of MedicineJacksonvilleFL 32209United States Department of Diagnostic Radiology University of AlabamaBirminghamAL 35294United States Department of Diagnostic Radiology University of Florida College of MedicineJacksonvilleFL 32209United States Department of Public Health Sciences University of FloridaGainesvilleFL 32611United States

A recent case report provided a patient scenario,wherein,a 39-year-old male patient presented with occasional palpitations,headache,and *** of tumor markers did not show any abnormal ***,a computed tomography(CT)scan was undertaken,and its findings were affirmative of thymic ***,the postoperative histopathological assessment of the mass,after its resection,confirmed it as an anterior mediastinal multilocular thymic cyst(MTC),with concurrent acute upper respiratory tract infection and acute ***,this case report advocates the need for a preoperative histopathological examination with CT imaging to minimize the risk of confusing an MTC with a malignant thymic tumor.

关键词： Imaging findings Multilocular thymic cyst Histopathology Thymic cancer Mediastinal mass

Bio-Nanocarriers for Lung Cancer Management:Befriending the Barriers

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Nano-Micro Letters 2021年第9期13卷 238-291页

作者： Shruti Rawal mayur Patel Department of Pharmaceutics Institute of PharmacyNirma UniversitySG HighwayChharodiAhmedabadGujarat 382481India

ABSTRACT Lung cancer is a complex thoracic malignancy developing consequential to aberrations in a myriad of molecular and biomolecular signaling *** is one of the most lethal forms of cancers accounting to almost 1.8 million new annual incidences,bearing overall mortality to incidence ratio of *** dismal prognostic scenario at advanced stages of the disease and metastatic/resistant tumor cell populations stresses the requisite of advanced translational interdisciplinary interventions such as *** review article deliberates insights and apprehensions on the recent prologue of nanobioengineering and bionanotechnology as an approach for the clinical management of lung *** role of nanobioengineered(bio-nano)tools like bio-nanocarriers and nanobiodevices in secondary prophylaxis,diagnosis,therapeutics,and theranostics for lung cancer management has been ***,bioinspired,and biomimetic bio-nanotools of considerate translational value have been *** on existent oncostrategies,their critical comparison with bio-nanocarriers,and issues hampering their clinical bench side to bed transformation have also been summarized.

关键词： Biomimetic nanoparticles Exosomes Circulating tumor cells Mesenchymal stem cells Theranostics

Insights on drug and gene delivery systems in liver fibrosis

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Asian Journal of Pharmaceutical Sciences 2023年第2期18卷 4-27页

作者： Kunj Vyas mayur M Patel Department of Pharmaceutics Institute of PharmacyNirma University SG HighwayGujarat 382481India

Complications of the liver are amongst the world’s worst *** fibrosis is the first stage of liver problems,while cirrhosis is the last stage,which can lead to *** creation of effective anti-fibrotic drug delivery methods appears critical due to the liver’s metabolic capacity for drugs and the presence of insurmountable physiological impediments in the way of *** breakthroughs in anti-fibrotic agents have substantially assisted in fibrosis;nevertheless,the working mechanism of anti-fibrotic medications is not fully understood,and there is a need to design delivery systems that are well-understood and can aid in ***-based delivery systems are regarded to be effective but they have not been adequately researched for liver *** a result,the capability of nanoparticles in hepatic delivery was *** approach is targeted drug delivery,which can considerably improve efficacy if delivery systems are designed to target hepatic stellate cells(HSCs).We have addressed numerous delivery strategies that target HSCs,which can eventually aid in *** genetics have proved to be useful,and methods for delivering genetic material to the target place have also been investigated where different techniques are *** summarize,this review paper sheds light on themost recent breakthroughs in drug and gene-based nano and targeted delivery systems that have lately shown useful for the treatment of liver fibrosis and cirrhosis.

关键词： Liver fibrosis Gene delivery system Nano drug delivery system Cirrhosis Targeted delivery system Vector

Managing malignant biliary obstruction in pancreas cancer: Choosing the appropriate strategy

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World Journal of Gastroenterology 2014年第28期20卷 9345-9353页

作者： Brian R Boulay mayur Parepally Division of Gastroenterology and Hepatology University of Illinois Hospital and Health Sciences System

Most patients with pancreatic cancer develop malignant biliary *** of obstruction is generally indicated to relieve symptoms and improve morbidity and ***-line therapy consists of endoscopic biliary stent *** data comparing plastic stents to self-expanding metallic stents(SEMS)has shown improved patency with *** decision of whether to treat obstruction and the means for doing so depends on the clinical *** patients with resectable disease,preoperative biliary decompression is only indicated when surgery will be delayed or complications of jaundice *** patients with locally advanced disease,self-expanding metal stents are superior to plastic stents for long-term *** patients with advanced disease,the choice of metallic or plastic stent depends on life *** endoscopic stent placement fails,percutaneous or surgical treatments are *** therapy or surgical approach can be used to treat concomitant duodenal and biliary obstruction.

关键词： Pancreatic neoplasms Cholestasis Extrahepatic Stents Biliary tract diseases

Revolutionizing palliative care:Electrocautery-enhanced lumenapposing metal stents in endoscopic-ultrasound-guided biliary drainage for malignant obstructions

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World Journal of Gastrointestinal Surgery 2024年第7期16卷 2358-2361页

Patients with malignant biliary obstruction,following endoscopic retrograde cholangiopancreatography(ERCP)failure could be referred for endoscopicultrasound-guided biliary drainage through electrocautery-enhanced(ECE)lumen-apposing metal stent(LAMS)***,the efficacy and safety of ECE-LAMS in this scenario have remained debatable due to minimal scientific *** current confirmed 91.0%clinical success,96.7%technical success,7.3%reintervention rate,and 17.5%adverse events,following the treatment of malignant biliary obstruction with ECE-LAMS ***,ECE-LAMS proved to be a generalizable strategy for managing biliary obstruction for patients who were excluded from ERCP.

关键词： Endoscopic retrograde cholangiopancreatography Electrocautery-enhancedlumen-apposing metal stent Biliary drainage Biliary stent Endoscopic ultrasound

Advances and effectiveness of the immunotherapy after liver transplantation

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World Journal of Gastrointestinal Surgery 2022年第6期14卷 629-631页

作者： Sai Swarupa R Vulasala Nirmal K Onteddu Sindhu P kumar Chandana Lall Priya Bhosale mayur K Virarkar Department of Radiology University of Florida College of MedicineJacksonvilleFL 32209United States Department of Internal Medicine Flowers HospitalDothanAL 36305United States Division of Diagnostic Imaging Department of Diagnostic RadiologyThe University of Texas MD Anderson Cancer CenterHoustonTX 77030United States

Transplant recipients usually have increased chances of graft rejection and graft vs host disease,requiring chronic immunosuppressive ***,longterm immunosuppression risks malignancies such as skin cancer,lymphoma,and Kaposi ***,there are very few studies that included solid organ transplant recipients while studying the efficacy of immunotherapy.“Immunotherapy after liver transplantation:Where are we now?”is a study,where the authors described the mechanism of action and outcomes of immune checkpoint inhibitors specific to liver transplant *** authors reported the graft rejection rates and the factors contributing to the rejection in the liver transplant recipients.

关键词： Immunotherapy Hepatocellular carcinoma Immune checkpoint inhibitors Liver transplantation Solid organ transplant Graft rejection

An overview and experimental analysis of WO_(3)/TiO_(2)composite with enhanced electrochromic properties for smart windows application

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Tungsten 2024年第4期6卷 732-747页

作者： Ayesha Khan mayur A.Gaikwad Jin Hyeok Kim Anamika Kadam The Institute of Science Dr.Homi Bhabha State UniversityNo.15 Madam Cama RoadMumbai400032India Optoelectronics Convergence Research Center and Department of Materials Science and Engineering Chonnam National UniversityGwangju61186South Korea

Internationally,standards for electrochromic(EC)requirements in smart window applications have been established,with ongoing global initiatives aimed at elevating them to highly advanced *** paper covers a comprehensive investigation of the structural,optical,morphological,and electrochemical properties of WO_(3)/TiO_(2)composite ***,an experimental analysis of WO_(3)/TiO_(2)was envisaged by a two-step ***,WO_(3)thin films were hydrothermally deposited onto indium-doped tin oxide-coated glass substrates using an aqueous solution of Na_(2)WO_(4)·2H_(2)O at a pH value of ***,a layer of TiO_(2)was electrodeposited onto the WO_(3)thin films.X-ray diffraction analysis confirmed the successful formation of WO_(3)/TiO_(2)composite films,with the WO_(3)phase exhibiting a hexagonal tunnel *** electron microscopy revealed the formation of porous nanorods(NRs)of WO_(3),uniformly coated with TiO_(2),resulting in a porous morphology of the WO./TiO_(2)*** EC performance of the WO_(3)/TiO_(2)films was thoroughly assessed through cyclic voltammetry and chronoamperometry measurements over a potential window ranging from-2.0 to+1.2 V(versus Ag/AgCl)in a 0.5 mol·L^(-1)LiClO_(4)-PC *** WO_(3)/TiO_(2)composite films exhibited cathodic electrochromism,characterized by a reversible color change from dark blue to *** improved EC performance in comparison to pure WO_(3)films is attributed to enhanced double ion/electron insertion and extraction ***,the WO_(3)/TiO_(2)composite films demonstrated excellent optical modulation properties,with a significant modulation at 633 nm(46.87%).The coloration efficiency reached a high value of 193.25 cm^(2)·C^(-1),indicating their potential for practical EC ***,the WO_(3)/TiO_(2)composite films displayed exceptional EC stability,with no significant degradation observed over 2500 cyclic voltammetry *** superior EC

关键词： Electrochromism WO_(3)/TiO_(2) Stability Smart window

Measurement of neutron capture cross section on^(71)Ga at 2.15 and 3.19 MeV and uncertainty propagation and covariance analysis

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Chinese Physics C 2023年第7期47卷 72-80页

作者： Rebecca Pachuau A.Gandhi Namrata Singh A.kumar mayur Mehta S.V.Suryanarayana L.S.Danu B.K.Nayak B.Lalremruata Department of Physics Banaras Hindu UniversityVaranasi-221005India Institute for Plasma Research Gandhinagar-382428India Nuclear Physics Division Bhabha Atomic Research CentreMumbai-400085India Homi Bhabha National Institute AnushaktinagarMumbai-400094India Department of Physics Mizoram UniversityTanhrilAizawl-796004India Horia Hulubei National Institute of Physics and Nuclear Engineering-IFIN-HH Bucharest077125Romania MCNS Manipal Academy of Higher EducationManipal 576104India

The cross section values of the^(71)Ga(n,γ)^(72)Ga reaction are measured,which are 9.14±0.81 mb and 5.74±0.50 mb at 2.15 and 3.19 MeV,*** detailed uncertainty propagation and covariance analysis are also ***^(7)Li(p,n)^(7)Be reaction was used to generate the neutrons,and the neutron flux was normalized using the^(115)In(n,n′)^(115)In^(m)monitor *** measured cross section data are compared with the data available in the EXFOR database,the data obtained using nuclear reaction model codes EMPIRE-3.2 and TALYS-1.95,and also the evaluated nuclear data from ENDF/B-VIII.0 and JEFF-3.1/*** comparison shows that our result at 3.19 MeV is in good agreement with those of EMPIRE-3.2 and JEFF-3.1/*** there are no other measurements available at3.19 MeV,our data could not be compared with literature data at 3.19 MeV,but they are consistent with the cross section values available at 2.98±0.26 and 3.0±0.1 *** result at 2.15 MeV is slightly higher than the literature value available in EXFOR,evaluated value,and theoretically predicted result.

关键词： neutron capture cross section gallium uncertainty propagation and covariance analysis