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| 1 | Evolution,current status and advances in application of platelet concentrate in periodontics and implantology显示文摘Platelet concentrates(PC) [platelet-rich plasma(PRP) and platelet-rich fibrin(PRF)] are frequently used for surgical procedures in medical and dental fields,particularly in oral and maxillofacial surgery,plastic surgery and sports medicine.The objective of all these technologies is to extract all the elements from a blood sample that could be used to improve healing and promote tissue regeneration.Although leukocyte rich and leukocyte poor PRP's have their own place in literature,the importance of non-platelet components in a platelet concentrate remains a mystery.PC have come a long way since its first appearance in 1954 to the T-PRF,A-PRF and i-PRF introduced recently.These PC find varied applications successfully in periodontics and implant dentistry as well.However,the technique of preparation,standing time,transfer process,temperature of centrifuge,vibration,etc.,are the various factors for the mixed results reported in the literature.Until the introduction of a proper classification of terminologies,the PC were known by different names in different countries and by different commercial companies which also created a lot of confusion.This review intends to clarify all these confusion by briefing the exact evolution of PC,their preparation techniques,recent advances and their various clinical and technical aspects and applications. | Amit Arvind Agrawal | 2017 | World Journal of Clinical Cases2017，5，5： | 28 |
| 2 | Low-loss metasurface optics down to the deep ultraviolet region显示文摘Shrinking conventional optical systems to chip-scale dimensions will benefit custom applications in imaging,displaying,sensing,spectroscopy,and metrology.Towards this goal,metasurfaces-planar arrays of subwavelength electromagnetic structures that collectively mimic the functionality of thicker conventional optical elements-have been exploited at frequencies ranging from the microwave range up to the visible range.Here,we demonstrate highperformance metasurface optical components that operate at ultraviolet wavelengths,including wavelengths down to the record-short deep ultraviolet range,and perform representative wavefront shaping functions,namely,highnumerical-aperture lensing,accelerating beam generation,and hologram projection.The constituent nanostructured elements of the metasurfaces are formed of hafnium oxide-a loss-less,high-refractive-index dielectric material deposited using low-temperature atomic layer deposition and patterned using high-aspect-ratio Damascene lithography.This study opens the way towards low-form factor,multifunctional ultraviolet nanophotonic platforms based on flat optical components,enabling diverse applications including lithography,imaging,spectroscopy,and quantum information processing. | Cheng Zhang Shawn Divitt Qingbin Fan Wenqi Zhu Amit Agrawal Yanqing Lu Ting Xu Henri J.Lezec | 2020 | Light(Science & Applications)2020，9，1： | 11 |
| 3 | Multifunctional metasurfaces enabled by simultaneous and independent control of phase and amplitude for orthogonal polarization states显示文摘Monochromatic light can be characterized by its three fun dame ntal properties:amplitude,phase,and polarization.In this work,we propose a versatile,transmission-mode all-dielectric metasurface platform that can independently manipulate the phase and amplitude for two orthogonal states of polarization in the visible frequency range.For proof-o仁concept experimental demonstration,various single-layer metasurfaces composed of subwavelength-spaced titanium-dioxide nanopillars are designed,fabricated,and characterized to exhibit the ability of polarization-switchable multidimensional light-field manipulation,including polarization-switchable grayscale nanoprinting,nonuniform cylindrical lensing,and complex-amplitude holography.We envision the metasurface platform dem on strated here to open new possibilities toward creating compact multifunctional optical devices for applications in polarization optics,information encoding,optical data storage,and security. | Mingze Liu Wenqi Zhu Pengcheng Huo Lei Feng Maowen Song Cheng Zhang Lu Chen Henri JLezec Yanqing Lu Amit Agrawal Ting Xu | 2021 | Light(Science & Applications)2021，10，6： | 8 |
| 4 | Gingival enlargements: Differential diagnosis and review of literature显示文摘Gingival enlargement is one of the frequent features of gingival diseases. However due to their varied presentations, the diagnosis of these entities becomes challenging for the clinician. They can be categorized based on their etiopathogenesis, location, size, extent, etc. Based on the existing knowledge and clinical experience, a differential diagnosis can be formulated. Subsequently, after detailed investigation, clinician makes a final diagnosis or diagnosis of exclusion. A perfect diagnosis is critically important, since the management of these lesions and prevention of their recurrence is completely dependent on it. Furthermore, in some cases where gingival enlargement could be the primary sign of potentially lethal systemic diseases, a correct diagnosis of these enlargements could prove life saving for the patient or at least initiate early treatment and improve the quality of life. The purpose of this review article is to highlight significant findings of different types of gingival enlargement which would help clinician to differentiate between them. A detailed decision tree is also designed for the practitioners, which will help them arrive at a diagnosis in a systematic manner. There still could be some lesions which may present in an unusual manner and make the diagnosis challenging. By knowing the existence of common and rare presentations of gingival enlargement, one can keep a broad view when formulating a differential diagnosis of localized(isolated, discrete, regional) or generalized gingival enlargement. | Amit Arvind Agrawal | 2015 | World Journal of Clinical Cases2015，3，9： | 6 |
| 5 | Hoffa fracture associated with femoral shaft and proxi-mal tibial fractures: report of two cases显示文摘独居的花冠砍大腿骨的髁的破裂例如 Hoffa’s 骨折,通常与 supracondylar 或腿节的 intercondylar 破裂被联系。这些破裂在导致多重损害的高精力机制的上下文稀罕、看见;因此,病人的彻底的 workup 被要求排除另外的重要损害。Hoffa’与大腿骨的柄联系的 s 骨折和近似胫骨的破裂是极其稀罕的,没有如此的损害以前被报导了。我们报导与标准起作用的固定技术被管理并且示威的二个如此的案例对在一年的后续以后的优秀功能的结果好。这份报告强调怀疑的那个高索引为这些损害的诊断被要求,彻底的 workup 是强制的排除另外的联系损害。我们也建议损害的可能的机制。 | Anuj Jain Prakash Agrawal Manish Chadha Amite Pankaj | 2012 | Chinese Journal of Traumatology2012，15，6： | 5 |
| 6 | Review on vortex flowmeter—Designer perspective显示文摘 | A. Venugopal Amit Agrawal S.V. Prabhu | | Sensors & Actuators: A Physical0，，： | 1 |
| 7 | Coded exposure photography显示文摘 | Ramesh Raskar Amit Agrawal Jack Tumblin | 2006 | ACM Transactions on Graphics (TOG)2006，，3： | 1 |
| 8 | Coupling terahertz radiation onto a metal wire using a subwavelength coasxial aperture显示文摘 | Amit Agrawal Ajay Nahata | 2007 | Optics Express2007，15，14： | 1 |
| 9 | Chemical constituents of plants from the genus Litsca 显示文摘 | Nisha Agrawal Amit Singh Choudhary Mahesh Chan- clra Sharma | 2011 | Chemistry & Biodiversity2011，8，： | 1 |
| 10 | COVID-19 pandemic effects on the distribution of healthcare services in India: A systematic review显示文摘BACKGROUND The coronavirus disease 2019(COVID-19)pandemic has brought fundamental changes to our problems and priorities,especially those related to the healthcare sector.India was one of the countries severely affected by the harsh consequences of the COVID-19 pandemic.AIM To understand the challenges faced by the healthcare system during a pandemic.METHODS The literature search for this review was conducted using PubMed,EMBASE,Scopus,Web of Science,and Google Scholar.We also used Reference Citation Analysis(RCA)to search and improve the results.We focused on the published scientific articles concerned with two major vital areas:(1)The Indian healthcare system;and(2)COVID-19 pandemic effects on the Indian healthcare system.RESULTS The Indian healthcare system was suffering even before the pandemic.The pandemic has further stretched the healthcare services in India.The main obstacle in the healthcare system was to combat the rising number of communicable as well as noncommunicable diseases.Besides the pandemic measures,there was a diversion of focus of the already established healthcare services away from the chronic conditions and vaccinations.The disruption of the vaccination services may have more severe short and long-term consequences than the pandemic’s adverse effects.CONCLUSION Severely restricted resources limited the interaction of the Indian healthcare system with the COVID-19 pandemic.Re-establishment of primary healthcare services,maternal and child health services,noncommunicable diseases programs,National Tuberculosis Elimination Program,etc.are important to prevent serious long-term consequences of this pandemic. | Nirav Nimavat Mohammad Mehedi Hasan Sundip Charmode Gowthamm Mandala Ghanshyam R Parmar Ranvir Bhangu Israr Khan Shruti Singh Amit Agrawal Ashish Shah Vishi Sachdeva | 2022 | World Journal of Virology2022，11，4： | 1 |
| 11 | Coupling terahertz radiation onto a metal wire using a snbwavelength coasxial aperture 显示文摘 | Amit Agrawal Ajay Nahata | 2007 | Optics Express2007，15，14： | 1 |
| 12 | Heat transfer characteristics of synthetic jet impingement cooling显示文摘 | Mangesh Chaudhari Bhalchandra Puranik Amit Agrawal | 2009 | International Journal of Heat and Mass Transfer2009，，5： | 1 |
| 13 | Investigation of flow around a pair of side-by-side square cylinders using the lattice Boltzmann method 显示文摘 | Amit Agrawal Lyazid Djenidi Antonia R A | 2006 | Computers & fluids2006，35，： | 1 |
| 14 | Effect of orifice shape in synthetic jet based impingement cooling显示文摘 | Mangesh Chaudhari Bhalchandra Puranik Amit Agrawal | 2009 | Experimental Thermal and Fluid Science2009，，2： | 1 |
| 15 | Changes in gene expression in liver tissue from patients with fulminant hepatitis E显示文摘AIM: To study host gene expression and numberof immune cells in liver tissues from patients with fulminant hepatitis E(FH-E).METHODS: Microarray-based expression profiling was done using Illumina Human WG-6_v3_Bead Chip arrays on post-mortem liver tissue from 5 patients with FH-E,and compared with similar tissue from 6 patients with fulminant hepatitis B(FH-B; disease controls) and normal liver tissue from 6 persons.Differential expression was defined as ≥ 2.0-fold change with Benjamini-Hochberg false discovery rate below 0.05 using t-test in liver tissue from FH-B and FH-E,than healthy liver tissue.For some genes that showed differential expression in FH-E,microarray data were validated using quantitative reverse transcription PCR.Differentially expressed gene lists were then subjected to 'Gene Ontology' analysis for biological processes,and pathway analysis using Bio Carta database on the DAVID server.In addition,tissue sections were stained for CD4+,CD8+ and CD56+ cells using indirect immunohistochemistry; cells staining positive for each of these markers were counted and compared between groups.RESULTS: Compared to normal livers,those from patients with FH-E and FH-B showed differential expression of 3377 entities(up-regulated 1703,downregulated 1674) and 2572 entities(up 1164,down 1408),respectively.This included 2142(up 896,down 1246) entities that were common between the two sets; most of these belonged to metabolic,hemostatic and complement pathways,which are active in normal livers.Gene expression data from livers of patients with FH-E but not those of FH-B showed activation of several immune response pathways,particularly those involving cytotoxic T cells.The fold-change values of m RNA for selected genes in livers from FH-E than in normal liver tissue determined using quantitative reverse transcription PCR showed excellent concordance with microarray analysis.At immunohistochemistry,CD8+ T cells showed an increase in liver biopsies from both FH-E [median 53.4 per arbitrary unit area(range 31.2-99.9)] and FH-B [median 49.3(19.3-51.0); P = 0.005] compared to control liver tissue [median 6.9(3.1-14.9)].CONCLUSION: FH-E patients show CD8+ T cell infiltration and increased gene expression of cytotoxic T cell pathways in liver,suggesting a possible pathogenetic role for these cells. | Anshu Naik Amit Goel Vinita Agrawal Aditya N Sarangi Nanda Chhavi Vineeta Singh Shahid Jameel Rakesh Aggarwal | 2015 | World Journal of Gastroenterology2015，21，26： | 1 |
| 16 | Ketamine in status asthmaticus:A review显示文摘 | Shweta Goyal Amit Agrawal | 2013 | Indian J Crit Care Med2013，17，3： | 1 |
| 17 | Post-traumatic epilepsy: An overview 显示文摘 | Amit Agrawal Jake Timothy b Lekha Pandit c | 2006 | Clin Neurol and Neurosurg2006，108，： | 1 |
| 18 | Fate of root shell after pontic/socket shield techniques,is it better to extract the whole tooth?显示文摘A series of changes occur in the remaining alveolar process after whole tooth extraction.The basic question is,why do the bony walls(especially the labial/buccal)get resorbed immediately after the tooth is removed?This could be because,with cementum of the concerned tooth and its periodontal ligament,the supporting bundle bone is dependent on the presence of the tooth.This loss can be compensated using numerous techniques,such as socket grafting using various biomaterials to preserve the alveolar bone and buccal grafting with guided tissue regeneration to increase the thickness of buccal bone or placement of implant immediately.However,none of these techniques prevent the modelling of the alveolar bone post-extraction.Few studies have demonstrated that preservation of the roots in the alveolar process maintains the bone volume and facilitates vertical bone growth.A histological study in animals and humans has shown that the retained root shell does not pose any interference in the osseointegration of the implant(if placed simultaneously).Although various names have been proposed to describe the concept of retaining full or part of the root to prevent the resorption of the ridge,socket-shield and pontic-shield are the two most commonly used terms worldwide.The extraction of the whole tooth might be the choice of therapy when socket-shield or pontic-shield is not possible due to anatomical variations,infections,or lack of clinical expertise.Irrespective of the size,when a whole root or a root fragment(is left in situ),it is the dentist’s ethical duty to advise/inform the patient and ensure repeated clinical and radiographic follow-up.The present study aimed to highlight the current status of these techniques,their benefits,and possible complications and address whether the paradigm of the teeth extraction methods should be altered. | Amit Arvind Agrawal | 2021 | World Journal of Meta-Analysis2021，9，4： | 1 |
| 19 | Analytical solution of gaseous slip flow in long microchannels 显示文摘 | Nishanth Dongari Abhishek Agrawal Amit Agrawal | 2007 | Interna- tional Journal of Heat and Mass Transfer2007，50，1718： | 1 |
| 20 | Effect of Orifice Shape in Synthetic Jet Based Impingement Cooling 显示文摘 | Mangesh Chaudhari Bhalchandra Puranik Amit Agrawal | 2010 | Experimental Thermal and Fluid Science2010，34，2： | 1 |
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