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Nirwan N, Siddiqui A, Kannemadugu HBS, Chauhan P, Singh RP. Determining hotspots of gaseous criteria air pollutants in Delhi airshed and its association with stubble burning. Sci Rep 2024; 14:986. [PMID: 38200112 PMCID: PMC10782015 DOI: 10.1038/s41598-023-51140-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Accepted: 12/31/2023] [Indexed: 01/12/2024] Open
Abstract
Transboundary pollutant transport is considered as one of the primary factors causing the seasonal air quality deterioration in Delhi, India's capital. The highest standard deviations exceeding days in winter for NO2 (7.14-9.63%) and SO2 (4.04-7.42%) in 2019-2022 underscore the role of meteorological conditions in Delhi's pollution. In contrast, the post-monsoon season shows the highest pollutant exceedance days (4.52-8.00%) for CO due to stubble burning (SB) in Punjab (68,902 fires/year). Despite the government's assertions of decreasing SB events (14.68%), the city's CO exceedance days persistently rose by 6.36%. CAMS data is used for assessing contribution hotspots through back-trajectory analysis at multiple heights. An overlap hotspot of 111 sq. km area is identified in the Southeast parts of Punjab that have a higher contribution to the CO levels in Delhi during the post-monsoon season of 2019. Similarly, hotspots are also observed for SO2 over industrial areas of Punjab during the post-monsoon and pre-monsoon seasons. The same seasons show similar contributing patterns for NO2 highlighting the influence of consistent emission patterns and meteorological conditions. The clear delineation of hotspots using the receptor model at multiple heights coupled with source apportionment studies will assist decision-makers in addressing the pollution sources outside Delhi.
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Affiliation(s)
- Nirwan Nirwan
- Urban and Regional Studies Department, Indian Institute of Remote Sensing, Indian Space Research Organisation, 4-Kalidas Road, Dehradun, Uttarakhand, 248001, India.
| | - Asfa Siddiqui
- Urban and Regional Studies Department, Indian Institute of Remote Sensing, Indian Space Research Organisation, 4-Kalidas Road, Dehradun, Uttarakhand, 248001, India
| | | | - Prakash Chauhan
- National Remote Sensing Centre, Indian Space Research Organisation, Hyderabad, Telangana, 500037, India
| | - R P Singh
- Urban and Regional Studies Department, Indian Institute of Remote Sensing, Indian Space Research Organisation, 4-Kalidas Road, Dehradun, Uttarakhand, 248001, India
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Nayak V, Patra S, Rout S, Jena AB, Sharma R, Pattanaik KP, Singh J, Pandey SS, Singh RP, Majhi S, Singh KR, Kerry RG. Regulation of neuroinflammation in Alzheimer's disease via nanoparticle-loaded phytocompounds with anti-inflammatory and autophagy-inducing properties. Phytomedicine 2024; 122:155150. [PMID: 37944239 DOI: 10.1016/j.phymed.2023.155150] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 09/23/2023] [Accepted: 10/14/2023] [Indexed: 11/12/2023]
Abstract
BACKGROUND Alzheimer's disease (AD) is characterized by neuroinflammation linked to amyloid β (Aβ) aggregation and phosphorylated tau (τ) protein in neurofibrillary tangles (NFTs). Key elements in Aβ production and NFT assembly, like γ-secretase and p38 mitogen-activated protein kinase (p38MAPK), contribute to neuroinflammation. In addition, impaired proteosomal and autophagic pathways increase Aβ and τ aggregation, leading to neuronal damage. Conventional neuroinflammation drugs have limitations due to unidirectional therapeutic approaches and challenges in crossing the Blood-Brain Barrier (BBB). Clinical trials for non-steroidal anti-inflammatory drugs (NSAIDs) and other therapeutics remain uncertain. Novel strategies addressing the complex pathogenesis and BBB translocation are needed to effectively tackle AD-related neuroinflammation. PURPOSE The current scenario demands for a much-sophisticated theranostic measures which could be achieved via customized engineering and designing of novel nanotherapeutics. As, these therapeutics functions as a double edge sword, having the efficiency of unambiguous targeting, multiple drug delivery and ability to cross BBB proficiently. METHODS Inclusion criteria involve selecting recent, English-language studies from the past decade (2013-2023) that explore the regulation of neuroinflammation in neuroinflammation, Alzheimer's disease, amyloid β, tau protein, nanoparticles, autophagy, and phytocompounds. Various study types, including clinical trials, experiments, and reviews, were considered. Exclusion criteria comprised non-relevant publication types, studies unrelated to Alzheimer's disease or phytocompounds, those with methodological flaws, duplicates, and studies with inaccessible data. RESULTS In this study, polymeric nanoparticles loaded with specific phytocompounds and coated with an antibody targeting the transferrin receptor (anti-TfR) present on BBB. Thereafter, the engineered nanoparticles with the ability to efficiently traverse the BBB and interact with target molecules within the brain, could induce autophagy, a cellular process crucial for neuronal health, and exhibit potent anti-inflammatory effects. Henceforth, the proposed combination of desired phytocompounds, polymeric nanoparticles, and anti-TfR coating presents a promising approach for targeted drug delivery to the brain, with potential implications in neuroinflammatory conditions such as Alzheimer's disease.
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Affiliation(s)
- Vinayak Nayak
- ICAR- National Institute on Foot and Mouth Disease-International Centre for Foot and Mouth Disease, Arugul, Bhubaneswar, Odisha (752050), India
| | - Sushmita Patra
- Advanced Centre for Treatment, Research and Education in Cancer, Tata Memorial Centre, Kharghar, Navi Mumbai, Maharashtra (410210), India
| | - Shrushti Rout
- Department of Biotechnology, Utkal University, Vani Vihar, Bhubaneswar, Odisha (751004), India
| | - Atala Bihari Jena
- Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA (02115), United States of America
| | - Rohit Sharma
- Department of Rasa Shastra and Bhaishajya Kalpana, Faculty of Ayurveda, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh (221005), India
| | - Kali Prasad Pattanaik
- School of Biotechnology, Kalinga Institute of Industrial Technology (KIIT), Deemed to be University, Bhubaneswar 751024, India
| | - Jay Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh (221005), India
| | - Shyam S Pandey
- Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, 2-4 Hibikino, Wakamatsu, Kitakyushu (8080196), Japan
| | - Ravindra Pratap Singh
- Department of Biotechnology, Faculty of Science, Indira Gandhi National Tribal University, Amarkantak, Madhya Pradesh 484887, India
| | - Sanatan Majhi
- Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA (02115), United States of America
| | - Kshitij Rb Singh
- Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, 2-4 Hibikino, Wakamatsu, Kitakyushu (8080196), Japan.
| | - Rout George Kerry
- Department of Biotechnology, Utkal University, Vani Vihar, Bhubaneswar, Odisha (751004), India.
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Singh R, Singh P, Ahmad I, Alkhathami AG, Rai AK, Mishra PK, Singh RP, Srivastava N. Bionanofabrication of Cupric oxide catalyst from Water hyacinth based carbohydrate and its impact on cellulose deconstructing enzymes production under solid state fermentation. Int J Biol Macromol 2023; 252:126377. [PMID: 37595725 DOI: 10.1016/j.ijbiomac.2023.126377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 08/03/2023] [Accepted: 08/15/2023] [Indexed: 08/20/2023]
Abstract
One of the most important properties of cellulolytic enzyme is its ability to convert cellulosic polymer into monomeric fermentable sugars which are carbohydrate by nature can efficiently convert into biofuels. However, higher production costs of these enzymes with moderate activity-based stability are the main obstacles to making cellulase-based applications sustainably viable, and this has necessitated rigorous research for the economical availability of this process. Using water hyacinth (WH) waste leaves as the substrate for cellulase production under solid state fermentation (SSF) while treating the fermentation production medium with CuO (cupric oxide oxide) bionanocatalyst have been examined as ways to make fungal cellulase production economically feasible. Herein, a sustainable green synthesis of CuO bionanocatalyst has been performed by using waste leaves of WH. Through XRD, FT-IR, SEM, and TEM analysis, the prepared CuO bionanocatalyst's physicochemical properties have been evaluated. Furthermore, the effect of CuO bionanocatalyst on the temperature stability of raw cellulases was observed, and its half-life stability was found to be up to 9 h at 65 °C. The results presented in the current investigation may have broad scope for mass trials for various industrial applications, such as cellulosic biomass conversion.
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Affiliation(s)
- Rajeev Singh
- Department of Environmental Science, Jamia Millia Islamia, (A Central University), New Delhi 110025, India
| | - Pardeep Singh
- Department of Environmental Science, PGDAV College, University of Delhi, 110007, India
| | - Irfan Ahmad
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Khalid University, Abha, Saudi Arabia
| | - Ali G Alkhathami
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Khalid University, Abha, Saudi Arabia
| | - Ashutosh Kumar Rai
- Department of Biochemistry, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam 31441, Saudi Arabia
| | - P K Mishra
- Department of Chemical Engineering & Technology, Indian Institute of Technology (BHU) Varanasi, Varanasi 221005, Uttar Pradesh, India
| | | | - Neha Srivastava
- Department of Chemical Engineering & Technology, Indian Institute of Technology (BHU) Varanasi, Varanasi 221005, Uttar Pradesh, India.
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Agrawal A, Varshney R, Gattani A, Hira Khan M, Gupta R, Solanki KS, Patel SK, Singh RP, Singh P. Development of Hemagglutinin-Neuraminidase Homologous Peptides as Novel Promising Therapeutic Agents Against Peste des Petits Ruminants Virus. Protein J 2023; 42:685-697. [PMID: 37421558 DOI: 10.1007/s10930-023-10134-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/26/2023] [Indexed: 07/10/2023]
Abstract
The lack of specific antiviral therapy and complications associated with the existing peste des petits ruminants (PPR) vaccines accentuates the search of novel antiviral blocking agents in order to curtail the PPR infection at initial level. The synthetic hemagglutinin-neuraminidase (HN) homologous peptides may compete with the natural HN protein of PPR virus for binding to signaling lymphocytic activation molecule (SLAM) receptor, consequently, may disrupt peste des petits ruminants virus (PPRV) at entry level. Therefore, insilico analysis, synthesis, purification and subsequent characterization of HN homologous peptides were conducted in this study. The HN homologous peptides were synthesized by means of solid phase chemistry and were purified by reversed-phase-high performance liquid chromatography. The mass as well as sequence of HN homologous peptides were assessed by mass spectroscopy while its secondary structure was elucidated by circular dichroism spectroscopy. The binding (interaction) efficacy of HN homologous peptides with PPRV antibodies was assessed via indirect enzyme linked immunosorbent assay, visual detection test (red wine to purple), bathochromic shift under UV-Vis spectrophotometry and lateral flow immunochromatographic strip test. The antiviral properties and cytotoxicity of these peptides were also assessed in B95a cell line with changes in cytopathic effect and titer of PPRV (Sungri/96). The presence of green fluorescein isothiocyanate over the B95a cell surface pointed towards the binding of HN homologous peptides with surface SLAM receptor. Moreover, the intact beta sheet configuration in water and lower cytotoxicity [cytotoxic concentration 50 (CC50) > 1000 µg/ml] of these peptides signifies its in vivo use. Among HN homologous peptides, the binding efficacy and antiviral properties of pep A was relatively high in comparison to pep B and Pep ppr peptides. The prerequisite concentration of HN homologous peptides (pep A = 12.5 µg/ml; pep B = 25 µg/ml; pep ppr = 25 µg/ml) to exemplify its antiviral effect was much lower than its CC50 level. Hence, this study signifies the therapeutic potential of synthetic HN homologous peptides.
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Affiliation(s)
- Aditya Agrawal
- Division of Animal Biochemistry, IVRI, Izatnagar, Bareilly, U.P., 243122, India.
- Department of Veterinary Physiology and Biochemistry, College of Veterinary Science and Animal husbandry, NDVSU, Rewa, Jabalpur, 486001, India.
| | - Rajat Varshney
- Department of Veterinary Microbiology, BHU, Mirzapur, U.P., 231001, India
- Division of Bacteriology and Mycology, IVRI, Izatnagar, Bareilly, U.P., 243122, India
| | - Anil Gattani
- Division of Animal Biochemistry, IVRI, Izatnagar, Bareilly, U.P., 243122, India
- Department of Veterinary Physiology and Biochemistry, College of Veterinary Science and Animal husbandry, NDVSU, Jabalpur, 486001, India
| | - Mahvash Hira Khan
- Division of Animal Biochemistry, IVRI, Izatnagar, Bareilly, U.P., 243122, India
- Department of Veterinary Physiology and Biochemistry, College of Veterinary Science and Animal husbandry, NDVSU, Jabalpur, 486001, India
| | - Rohini Gupta
- Department of Veterinary Medicine, College of Veterinary Science and Animal husbandry, NDVSU, Jabalpur, 486001, India
| | - Khushal Singh Solanki
- Division of Veterinary Biotechnology, IVRI, Izatnagar, Bareilly, U.P., 243122, India
| | - Shailesh Kumar Patel
- Department of Veterinary Pathology, College of Veterinary Science and Animal husbandry, NDVSU, Rewa, Jabalpur, 486001, India
| | - R P Singh
- Division of Bacteriology and Mycology, IVRI, Izatnagar, Bareilly, U.P., 243122, India
| | - Praveen Singh
- Division of Animal Biochemistry, IVRI, Izatnagar, Bareilly, U.P., 243122, India
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5
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Robinson ML, Hahn PG, Inouye BD, Underwood N, Whitehead SR, Abbott KC, Bruna EM, Cacho NI, Dyer LA, Abdala-Roberts L, Allen WJ, Andrade JF, Angulo DF, Anjos D, Anstett DN, Bagchi R, Bagchi S, Barbosa M, Barrett S, Baskett CA, Ben-Simchon E, Bloodworth KJ, Bronstein JL, Buckley YM, Burghardt KT, Bustos-Segura C, Calixto ES, Carvalho RL, Castagneyrol B, Chiuffo MC, Cinoğlu D, Cinto Mejía E, Cock MC, Cogni R, Cope OL, Cornelissen T, Cortez DR, Crowder DW, Dallstream C, Dáttilo W, Davis JK, Dimarco RD, Dole HE, Egbon IN, Eisenring M, Ejomah A, Elderd BD, Endara MJ, Eubanks MD, Everingham SE, Farah KN, Farias RP, Fernandes AP, Fernandes GW, Ferrante M, Finn A, Florjancic GA, Forister ML, Fox QN, Frago E, França FM, Getman-Pickering AS, Getman-Pickering Z, Gianoli E, Gooden B, Gossner MM, Greig KA, Gripenberg S, Groenteman R, Grof-Tisza P, Haack N, Hahn L, Haq SM, Helms AM, Hennecke J, Hermann SL, Holeski LM, Holm S, Hutchinson MC, Jackson EE, Kagiya S, Kalske A, Kalwajtys M, Karban R, Kariyat R, Keasar T, Kersch-Becker MF, Kharouba HM, Kim TN, Kimuyu DM, Kluse J, Koerner SE, Komatsu KJ, Krishnan S, Laihonen M, Lamelas-López L, LaScaleia MC, Lecomte N, Lehn CR, Li X, Lindroth RL, LoPresti EF, Losada M, Louthan AM, Luizzi VJ, Lynch SC, Lynn JS, Lyon NJ, Maia LF, Maia RA, Mannall TL, Martin BS, Massad TJ, McCall AC, McGurrin K, Merwin AC, Mijango-Ramos Z, Mills CH, Moles AT, Moore CM, Moreira X, Morrison CR, Moshobane MC, Muola A, Nakadai R, Nakajima K, Novais S, Ogbebor CO, Ohsaki H, Pan VS, Pardikes NA, Pareja M, Parthasarathy N, Pawar RR, Paynter Q, Pearse IS, Penczykowski RM, Pepi AA, Pereira CC, Phartyal SS, Piper FI, Poveda K, Pringle EG, Puy J, Quijano T, Quintero C, Rasmann S, Rosche C, Rosenheim LY, Rosenheim JA, Runyon JB, Sadeh A, Sakata Y, Salcido DM, Salgado-Luarte C, Santos BA, Sapir Y, Sasal Y, Sato Y, Sawant M, Schroeder H, Schumann I, Segoli M, Segre H, Shelef O, Shinohara N, Singh RP, Smith DS, Sobral M, Stotz GC, Tack AJM, Tayal M, Tooker JF, Torrico-Bazoberry D, Tougeron K, Trowbridge AM, Utsumi S, Uyi O, Vaca-Uribe JL, Valtonen A, van Dijk LJA, Vandvik V, Villellas J, Waller LP, Weber MG, Yamawo A, Yim S, Zarnetske PL, Zehr LN, Zhong Z, Wetzel WC. Plant size, latitude, and phylogeny explain within-population variability in herbivory. Science 2023; 382:679-683. [PMID: 37943897 DOI: 10.1126/science.adh8830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Accepted: 09/27/2023] [Indexed: 11/12/2023]
Abstract
Interactions between plants and herbivores are central in most ecosystems, but their strength is highly variable. The amount of variability within a system is thought to influence most aspects of plant-herbivore biology, from ecological stability to plant defense evolution. Our understanding of what influences variability, however, is limited by sparse data. We collected standardized surveys of herbivory for 503 plant species at 790 sites across 116° of latitude. With these data, we show that within-population variability in herbivory increases with latitude, decreases with plant size, and is phylogenetically structured. Differences in the magnitude of variability are thus central to how plant-herbivore biology varies across macroscale gradients. We argue that increased focus on interaction variability will advance understanding of patterns of life on Earth.
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Affiliation(s)
- M L Robinson
- Department of Entomology, Michigan State University, East Lansing, MI, USA
- Department of Biology, Utah State University, Logan, UT, USA
| | - P G Hahn
- Entomology and Nematology Department, University of Florida, Gainesville, FL, USA
| | - B D Inouye
- Department of Biological Science, Florida State University, Tallahassee, FL, USA
| | - N Underwood
- Department of Biological Science, Florida State University, Tallahassee, FL, USA
| | - S R Whitehead
- Department of Biological Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
| | - K C Abbott
- Department of Biology, Case Western Reserve University, Cleveland, OH, USA
| | - E M Bruna
- Center for Latin American Studies, University of Florida, Gainesville, FL, USA
- Department of Wildlife Ecology and Conservation, University of Florida, Gainesville, FL, USA
| | - N I Cacho
- Instituto de Biología, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - L A Dyer
- Biology Department, University of Nevada, Reno, Reno, NV, USA
| | - L Abdala-Roberts
- Departamento de Ecología Tropical, Universidad Autónoma de Yucatán, Mérida, Yucatán, México
| | - W J Allen
- Bio-Protection Research Centre, University of Canterbury, Christchurch, New Zealand
| | - J F Andrade
- Departamento de Sistemática e Ecologia Universidade Federal da Paraíba, João Pessoa, Brazil
| | - D F Angulo
- Centro de Investigación Científica de Yucatán, Departamento de Recursos Naturales, Mérida, Yucatán, México
| | - D Anjos
- Instituto de Biologia, Universidade Federal de Uberlândia, Uberlândia, MG, Brazil
| | - D N Anstett
- Department of Entomology, Michigan State University, East Lansing, MI, USA
- Plant Resilience Institute, Michigan State University, East Lansing, MI, USA
- Department of Plant Biology, Michigan State University, East Lansing, MI, USA
| | - R Bagchi
- Department of Ecology and Evolutionary Biology, University of Connecticut, Storrs, CT, USA
| | - S Bagchi
- Centre for Ecological Sciences, Indian Institute of Science, Bangalore, Karnataka, India
| | - M Barbosa
- Department of Genetics, Ecology and Evolution, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - S Barrett
- Department of Biodiversity Conservation & Attractions Western Australia, Albany, Western Australia, Australia
| | - C A Baskett
- Institute of Science and Technology Austria, Klosterneuburg, Austria
| | - E Ben-Simchon
- Department of Natural Resources, Institute of Plant Sciences, Agricultural Research Organization - Volcani Institute, Rishon Le Tzion, Israel
- Robert H. Smith Faculty of Agriculture, Food, and Environment, The Hebrew University of Jerusalem, Rehovot, Israel
| | - K J Bloodworth
- Department of Biology, University of North Carolina Greensboro, Greensboro, NC, USA
| | - J L Bronstein
- Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, AZ, USA
| | - Y M Buckley
- School of Natural Sciences, Zoology, Trinity College Dublin, Dublin, Ireland
| | - K T Burghardt
- Department of Entomology, University of Maryland, College Park, MD, USA
| | - C Bustos-Segura
- Institute of Biology, University of Neuchatel, Neuchatel, Switzerland
| | - E S Calixto
- Entomology and Nematology Department, University of Florida, Gainesville, FL, USA
| | - R L Carvalho
- Institute of Advanced Studies, University of São Paulo, São Paulo, Brazil
| | | | - M C Chiuffo
- Grupo de Ecología de Invasiones, INIBIOMA, Universidad Nacional del Comahue, CONICET, San Carlos de Bariloche, Río Negro, Argentina
| | - D Cinoğlu
- Department of Integrative Biology, The University of Texas at Austin, Austin, TX, USA
| | - E Cinto Mejía
- Department of Entomology, Michigan State University, East Lansing, MI, USA
| | - M C Cock
- Facultad de Ciencias Exactas y Naturales, Instituto de Ciencias de la Tierra y Ambientales de La Pampa, Santa Rosa, La Pampa, Argentina
| | - R Cogni
- Department of Ecology, University of São Paulo, São Paulo, Brazil
| | - O L Cope
- Department of Entomology, Michigan State University, East Lansing, MI, USA
- Department of Biology, Whitworth University, Spokane, WA, USA
| | - T Cornelissen
- Department of Genetics, Ecology and Evolution, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - D R Cortez
- Department of Biology, California State University San Bernardino, San Bernardino, CA, USA
| | - D W Crowder
- Department of Entomology, Washington State University, Pullman, WA, USA
| | - C Dallstream
- Department of Biology, McGill University, Montreal, Quebec, Canada
| | - W Dáttilo
- Red de Ecoetología, Instituto de Ecología AC, Xalapa, Veracruz, Mexico
| | - J K Davis
- Department of Entomology, Cornell University, Ithaca, NY, USA
| | - R D Dimarco
- Department of Biology and Biochemistry, University of Houston, Houston, TX, USA
- Grupo de Ecología de Poblaciones de Insectos, IFAB, San Carlos de Bariloche, Río Negro, Argentina
| | - H E Dole
- Department of Entomology, Michigan State University, East Lansing, MI, USA
| | - I N Egbon
- Department of Animal and Environmental Biology, University of Benin, Benin City, Nigeria
| | - M Eisenring
- Forest Entomology, Swiss Federal Research Institute WSL, Birmensdorf, Switzerland
| | - A Ejomah
- Department of Animal and Environmental Biology, University of Benin, Benin City, Nigeria
| | - B D Elderd
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA, USA
| | - M-J Endara
- Grupo de Investigación en Ecología y Evolución en los Trópicos-EETROP, Universidad de las Américas, Quito, Ecuador
| | - M D Eubanks
- Department of Entomology, Texas A&M University, College Station, TX, USA
| | - S E Everingham
- Institute of Plant Sciences, University of Bern, Bern, Switzerland
- Evolution & Ecology Research Centre, University of New South Wales Sydney, Sydney, Australia
| | - K N Farah
- Department of Biology, Washington University in St. Louis, St. Louis, MO, USA
| | - R P Farias
- Instituto de Biologia, Universidade Federal da Bahia, Salvador, Bahia, Brasil
| | - A P Fernandes
- Department of Botany, Ganpat Parsekar College of Education Harmal, Pernem, Goa, India
| | - G W Fernandes
- Department of Genetics, Ecology and Evolution, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
- Knowledge Center for Biodiversity, Brazil
| | - M Ferrante
- Faculty of Agricultural Sciences and Environment, University of the Azores, Ponta Delgada, Portugal
- Department of Crop Sciences, University of Göttingen, Göttingen, Germany
| | - A Finn
- School of Natural Sciences, Zoology, Trinity College Dublin, Dublin, Ireland
| | - G A Florjancic
- Department of Biological Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
| | - M L Forister
- Biology Department, University of Nevada, Reno, Reno, NV, USA
| | - Q N Fox
- Department of Biology, Washington University in St. Louis, St. Louis, MO, USA
| | - E Frago
- CIRAD, UMR CBGP, INRAE, Institut Agro, IRD, Université Montpellier, Montpellier, France
| | - F M França
- School of Biological Sciences, University of Bristol, Bristol, UK
- Programa de Pós-Graduação em Ecologia, Universidade Federal do Pará, Belém, Pará, Brasil
| | | | - Z Getman-Pickering
- Department of Mechanical and Industrial Engineering, University of Massachusetts Amherst, Amherst, MA, USA
| | - E Gianoli
- Departamento de Biología, Universidad de La Serena, La Serena, Chile
| | - B Gooden
- CSIRO Black Mountain Laboratories, CSIRO Health and Biosecurity, Canberra, Australia
| | - M M Gossner
- Forest Entomology, Swiss Federal Research Institute WSL, Birmensdorf, Switzerland
- Institute of Terrestrial Ecosystems, Department of Environmental Systems Science, ETH Zurich, Zurich, Switzerland
| | - K A Greig
- Department of Integrative Biology, The University of Texas at Austin, Austin, TX, USA
| | - S Gripenberg
- School of Biological Sciences, University of Reading, Reading, UK
| | - R Groenteman
- Manaaki Whenua - Landcare Research, Lincoln, New Zealand
| | - P Grof-Tisza
- Institute of Biology, University of Neuchatel, Neuchatel, Switzerland
| | - N Haack
- Independent Institute for Environmental Issues, Halle, Germany
| | - L Hahn
- Molecular Evolution and Systematics of Animals, University of Leipzig, Leipzig, Germany
| | - S M Haq
- Wildlife Crime Control Division, Wildlife Trust of India, Noida, Uttar Pradesh, India
| | - A M Helms
- Department of Entomology, Texas A&M University, College Station, TX, USA
| | - J Hennecke
- Systematic Botany and Functional Biodiversity, Leipzig University, Leipzig, Germany
- German Centre for Integrative Biodiversity Research (iDiv), Leipzig, Germany
| | - S L Hermann
- Department of Entomology, The Pennsylvania State University, University Park, PA, USA
| | - L M Holeski
- Department of Biological Sciences and Center for Adaptive Western Landscapes, Northern Arizona University, Flagstaff, AZ, USA
| | - S Holm
- Department of Environmental and Biological Sciences, University of Eastern Finland, Joensuu, Finland
- Department of Zoology, University of Tartu, Tartu, Estonia
| | - M C Hutchinson
- Department of Life and Environmental Sciences, University of California, Merced, Merced, CA, USA
| | - E E Jackson
- School of Biological Sciences, University of Reading, Reading, UK
| | - S Kagiya
- Field Science Center for Northern Biosphere, Hokkaido University, Sapporo, Hokkaido, Japan
| | - A Kalske
- Department of Biology, University of Turku, Turku, Finland
| | - M Kalwajtys
- Department of Entomology, Michigan State University, East Lansing, MI, USA
| | - R Karban
- Department of Entomology and Nematology, University of California Davis, Davis, CA, USA
| | - R Kariyat
- Department of Entomology and Plant Pathology, University of Arkansas, Fayetteville, AR, USA
| | - T Keasar
- Department of Biology and the Environment, University of Haifa - Oranim, Oranim, Tivon, Israel
| | - M F Kersch-Becker
- Department of Entomology, The Pennsylvania State University, University Park, PA, USA
| | - H M Kharouba
- Department of Biology, University of Ottawa, Ottawa, Ontario, Canada
| | - T N Kim
- Department of Entomology, Kansas State University, Manhattan, KS, USA
| | - D M Kimuyu
- Department of Natural Resources, Karatina University, Karatina, Kenya
| | - J Kluse
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA, USA
| | - S E Koerner
- Department of Biology, University of North Carolina Greensboro, Greensboro, NC, USA
| | - K J Komatsu
- Department of Biology, University of North Carolina Greensboro, Greensboro, NC, USA
- Smithsonian Environmental Research Center, Edgewater, MD, USA
| | - S Krishnan
- Center for Sustainable Future, Amrita University and EIACP RP, Amrita Viswa Vidyapeetham, Coimbatore, India
| | - M Laihonen
- Biodiversity Unit, University of Turku, Turku, Finland
| | - L Lamelas-López
- Faculty of Agricultural Sciences and Environment, University of the Azores, Ponta Delgada, Portugal
| | - M C LaScaleia
- Department of Ecology and Evolutionary Biology, University of Connecticut, Storrs, CT, USA
| | - N Lecomte
- Canada Research Chair in Polar and Boreal Ecology, Department of Biology and Centre d'Études Nordiques, Université de Moncton, Moncton, Canada
| | - C R Lehn
- Biological Sciences Course, Instituto Federal Farroupilha, Panambi, RS, Brazil
| | - X Li
- College of Resources and Environmental sciences, Jilin Agricultural University, Changchun, China
| | - R L Lindroth
- Department of Entomology, University of Wisconsin-Madison, Madison, WI, USA
| | - E F LoPresti
- Department of Biological Sciences, University of South Carolina, Columbia, SC, USA
| | - M Losada
- Department of Soil Science and Agricultural Chemistry, University of Santiago de Compostela, Santiago de Compostela, A Coruña, Spain
| | - A M Louthan
- Division of Biology, Kansas State University, Manhattan, KS, USA
| | - V J Luizzi
- Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, AZ, USA
| | - S C Lynch
- Division of Biology, Kansas State University, Manhattan, KS, USA
| | - J S Lynn
- Department of Biological Sciences, University of Bergen, Bergen, Norway
- Department of Earth and Environmental Sciences, University of Manchester, Manchester, UK
| | - N J Lyon
- Department of Entomology, Michigan State University, East Lansing, MI, USA
| | - L F Maia
- Bio-Protection Research Centre, University of Canterbury, Christchurch, New Zealand
- School of Biological Sciences, University of Bristol, Bristol, UK
| | - R A Maia
- Department of Genetics, Ecology and Evolution, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - T L Mannall
- Institute of Plant Sciences, University of Bern, Bern, Switzerland
| | - B S Martin
- Department of Plant Biology, Michigan State University, East Lansing, MI, USA
- Ecology, Evolution, and Behavior Program, Michigan State University, East Lansing, MI, USA
| | - T J Massad
- Department of Scientific Services, Gorongosa National Park, Sofala, Mozambique
| | - A C McCall
- Biology Department, Denison University, Granville, OH, USA
| | - K McGurrin
- Department of Entomology, University of Maryland, College Park, MD, USA
| | - A C Merwin
- Department of Biology and Geology, Baldwin Wallace University, Berea, OH, USA
| | - Z Mijango-Ramos
- Department of Integrative Biology, The University of Texas at Austin, Austin, TX, USA
| | - C H Mills
- Evolution & Ecology Research Centre, University of New South Wales Sydney, Sydney, Australia
| | - A T Moles
- Evolution & Ecology Research Centre, University of New South Wales Sydney, Sydney, Australia
| | - C M Moore
- Department of Biology, Colby College, Waterville, ME, USA
| | - X Moreira
- Misión Biológica de Galicia, Consejo Superior de Investigaciones Científicas, Pontevedra, Galicia, Spain
| | - C R Morrison
- Department of Integrative Biology, The University of Texas at Austin, Austin, TX, USA
| | - M C Moshobane
- South African National Biodiversity Institute, Pretoria National Botanical Garden, Brummeria, Silverton, South Africa
- Centre for Functional Biodiversity, University of KwaZulu-Natal, Scottsville, Pietermaritzburg, South Africa
| | - A Muola
- Division of Biotechnology and Plant Health, Norwegian Institute of Bioeconomy Research, Tromsø, Norway
| | - R Nakadai
- Faculty of Environment and Information Sciences, Yokohama National University, Yokohama, Kanagawa, Japan
| | - K Nakajima
- Insitute of Science and Engineering, Chuo University, Tokyo, Japan
- Institute of Cave Research, Shimohei-guun, Iwate Prefecture, Japan
| | - S Novais
- Red de Interacciones Multitróficas, Instituto de Ecología A.C., Xalapa, Veracruz, Mexico
| | - C O Ogbebor
- Nigerian Institute for Oil Palm Research, Benin City, Edo State, Nigeria
| | - H Ohsaki
- Department of Biological Sciences, Hirosaki University, Hirosaki, Aomori, Japan
| | - V S Pan
- Ecology, Evolution, and Behavior Program, Michigan State University, East Lansing, MI, USA
- Department of Integrative Biology, Michigan State University, East Lansing, MI, USA
| | - N A Pardikes
- Department of Biology, Utah State University, Logan, UT, USA
| | - M Pareja
- Departamento de Biologia Animal, Universidade Estadual de Campinas, Campinas, Brazil
| | - N Parthasarathy
- Department of Ecology and Evironmental Sciences, Pondicherry University, Puducherry, India
| | | | - Q Paynter
- Manaaki Whenua - Landcare Research, Auckland, New Zealand
| | - I S Pearse
- U.S. Geological Survey, Fort Collins Science Center, Fort Collins, CO, USA
| | - R M Penczykowski
- Department of Biology, Washington University in St. Louis, St. Louis, MO, USA
| | - A A Pepi
- Department of Biology, Tufts University, Medford, MA, USA
| | - C C Pereira
- Department of Genetics, Ecology and Evolution, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - S S Phartyal
- School of Ecology & Environment Studies, Nalanda University, Rajgir, India
| | - F I Piper
- Millennium Nucleus of Patagonian Limit of Life and Instituto de Ciencias Biológicas, Universidad de Talca, Talca, Chile
- Institute of Ecology and Biodiversity, Ñuñoa, Santiago
| | - K Poveda
- Department of Entomology, Cornell University, Ithaca, NY, USA
| | - E G Pringle
- Biology Department, University of Nevada, Reno, Reno, NV, USA
| | - J Puy
- School of Natural Sciences, Zoology, Trinity College Dublin, Dublin, Ireland
- Estación Biológica de Doñana, Consejo Superior de Investigaciones Científicas, Sevilla, Spain
| | - T Quijano
- Departamento de Ecología Tropical, Universidad Autónoma de Yucatán, Mérida, Yucatán, México
| | - C Quintero
- INIBIOMA, CONICET - Universidad Nacional del Comahue, San Carlos de Bariloche, Río Negro, Argentina
| | - S Rasmann
- Institute of Biology, University of Neuchatel, Neuchatel, Switzerland
| | - C Rosche
- German Centre for Integrative Biodiversity Research (iDiv), Leipzig, Germany
- Institute of Geobotany and Botanical Garden, Martin Luther University Halle-Wittenberg, Halle, Germany
| | - L Y Rosenheim
- Department of Entomology and Nematology, University of California Davis, Davis, CA, USA
| | - J A Rosenheim
- Department of Entomology and Nematology, University of California Davis, Davis, CA, USA
| | - J B Runyon
- Rocky Mountain Research Station, USDA Forest Service, Bozeman, MT, USA
| | - A Sadeh
- Department of Natural Resources, Newe Ya'ar Research Center, Volcani Institute, Ramat Yishay, Israel
| | - Y Sakata
- Department of Biological Environment, Akita Prefectural University, Shimoshinjyo-Nakano, Akita, Japan
| | - D M Salcido
- Biology Department, University of Nevada, Reno, Reno, NV, USA
| | - C Salgado-Luarte
- Instituto de Investigación Multidisciplinario en Ciencia y Tecnología, Universidad de La Serena, La Serena, Chile
| | - B A Santos
- Departamento de Sistemática e Ecologia Universidade Federal da Paraíba, João Pessoa, Brazil
| | - Y Sapir
- The Botanic Garden, School of Plant Sciences and Food Security, Faculty of Life Science, Tel Aviv University, Tel Aviv, Israel
| | - Y Sasal
- INIBIOMA, CONICET - Universidad Nacional del Comahue, San Carlos de Bariloche, Río Negro, Argentina
| | - Y Sato
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, Zurich, Switzerland
| | - M Sawant
- Department of Ecology, University of Pune, Maharashtra, India
| | - H Schroeder
- Department of Entomology, Cornell University, Ithaca, NY, USA
| | - I Schumann
- Department of Human Genetics, University of Leipzig, Leipzig, Germany
| | - M Segoli
- Mitrani Department of Desert Ecology, Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Midreshet Ben-Gurion, Israel
| | - H Segre
- Department of Natural Resources, Institute of Plant Sciences, Agricultural Research Organization - Volcani Institute, Rishon Le Tzion, Israel
- Robert H. Smith Faculty of Agriculture, Food, and Environment, The Hebrew University of Jerusalem, Rehovot, Israel
- Department of Natural Resources, Newe Ya'ar Research Center, Volcani Institute, Ramat Yishay, Israel
| | - O Shelef
- Department of Natural Resources, Institute of Plant Sciences, Agricultural Research Organization - Volcani Institute, Rishon Le Tzion, Israel
| | - N Shinohara
- Graduate School of Life Sciences, Tohoku University, Sendai, Japan
| | - R P Singh
- McGuire Center for Lepidoptera and Biodiversity, Florida Museum of Natural History, University of Florida, Gainesville, FL, USA
| | - D S Smith
- Department of Biology, California State University San Bernardino, San Bernardino, CA, USA
| | - M Sobral
- Department of Soil Science and Agricultural Chemistry, University of Santiago de Compostela, Santiago de Compostela, A Coruña, Spain
| | - G C Stotz
- Department of Plant and Environmental Sciences, Clemson University, Clemson, SC, USA
| | - A J M Tack
- Department of Ecology, Environment and Plant Sciences, Stockholm University, Stockholm, Sweden
| | - M Tayal
- Department of Plant and Environmental Sciences, Clemson University, Clemson, SC, USA
| | - J F Tooker
- Department of Entomology, The Pennsylvania State University, University Park, PA, USA
| | - D Torrico-Bazoberry
- Laboratorio de Comportamiento Animal y Humano, Centro de Investigación en Complejidad Social, Universidad del Desarrollo, Las Condes, Chile
| | - K Tougeron
- Écologie et Dynamique des Systèmes Anthropisés, Université de Picardie Jules Verne, UMR 7058 CNRS, Amiens, France
- Ecology of Interactions and Global Change, Institut de Recherche en Biosciences, Université de Mons, Mons, Belgium
| | - A M Trowbridge
- Department of Forest and Wildlife Ecology, University of Wisconsin, Madison, WI, USA
| | - S Utsumi
- Field Science Center for Northern Biosphere, Hokkaido University, Sapporo, Hokkaido, Japan
| | - O Uyi
- Department of Animal and Environmental Biology, University of Benin, Benin City, Nigeria
- Department of Entomology, University of Georgia, Tifton, GA, USA
| | - J L Vaca-Uribe
- Programa de ingeniría agroecológica, Corporación Universitaria Minuto de Dios, Bogotá, Colombia
| | - A Valtonen
- Department of Environmental and Biological Sciences, University of Eastern Finland, Joensuu, Finland
| | - L J A van Dijk
- Department of Ecology, Environment and Plant Sciences, Stockholm University, Stockholm, Sweden
- Department of Bioinformatics and Genetics, Swedish Museum of Natural History, Stockholm, Sweden
| | - V Vandvik
- Department of Biological Sciences, University of Bergen, Bergen, Norway
| | - J Villellas
- Department of Life Sciences, University of Alcalá, Madrid, Spain
| | - L P Waller
- Bioprotection Aotearoa, Lincoln University, Lincoln, New Zealand
| | - M G Weber
- Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, MI, USA
| | - A Yamawo
- Department of Biological Sciences, Hirosaki University, Hirosaki, Aomori, Japan
- Center for Ecological Research, Kyoto University, Otsu, Japan
| | - S Yim
- Biology Department, University of Nevada, Reno, Reno, NV, USA
| | - P L Zarnetske
- Ecology, Evolution, and Behavior Program, Michigan State University, East Lansing, MI, USA
- Department of Integrative Biology, Michigan State University, East Lansing, MI, USA
| | - L N Zehr
- Department of Entomology, Michigan State University, East Lansing, MI, USA
| | - Z Zhong
- Institute of Grassland Science, Key Laboratory of Vegetation Ecology, Ministry of Education/Jilin Songnen Grassland Ecosystem National Observation and Research Station, Northeast Normal University, Changchun, Jilin Province, China
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, State Key Laboratory for Biology of Plant Diseases and Insect Pests, Beijing, China
| | - W C Wetzel
- Department of Entomology, Michigan State University, East Lansing, MI, USA
- Plant Resilience Institute, Michigan State University, East Lansing, MI, USA
- Ecology, Evolution, and Behavior Program, Michigan State University, East Lansing, MI, USA
- Department of Integrative Biology, Michigan State University, East Lansing, MI, USA
- W.K. Kellogg Biological Station, Michigan State University, Hickory Corners, MI, USA
- Land Resources and Environmental Sciences, Montana State University, Bozeman, MT, USA
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Nayak V, Patra S, Singh KR, Ganguly B, Kumar DN, Panda D, Maurya GK, Singh J, Majhi S, Sharma R, Pandey SS, Singh RP, Kerry RG. Advancement in precision diagnosis and therapeutic for triple-negative breast cancer: Harnessing diagnostic potential of CRISPR-cas & engineered CAR T-cells mediated therapeutics. Environ Res 2023; 235:116573. [PMID: 37437865 DOI: 10.1016/j.envres.2023.116573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 06/29/2023] [Accepted: 07/06/2023] [Indexed: 07/14/2023]
Abstract
Cancer is characterized by uncontrolled cell growth, disrupted regulatory pathways, and the accumulation of genetic mutations. These mutations across different types of cancer lead to disruptions in signaling pathways and alterations in protein expression related to cellular growth and proliferation. This review highlights the AKT signaling cascade and the retinoblastoma protein (pRb) regulating cascade as promising for novel nanotheranostic interventions. Through synergizing state-of-the-art gene editing tools like the Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR)-Cas system with nanomaterials and targeting AKT, there is potential to enhance cancer diagnostics significantly. Furthermore, the integration of modified CAR-T cells into multifunctional nanodelivery systems offers a promising approach for targeted cancer inhibition, including the eradication of cancer stem cells (CSCs). Within the context of highly aggressive and metastatic Triple-negative Breast Cancer (TNBC), this review specifically focuses on devising innovative nanotheranostics. For both pre-clinical and post-clinical TNBC detection, the utilization of the CRISPR-Cas system, guided by RNA (gRNA) and coupled with a fluorescent reporter specifically designed to detect TNBC's mutated sequence, could be promising. Additionally, a cutting-edge approach involving the engineering of TNBC-specific iCAR and syn-Notch CAR T-cells, combined with the co-delivery of a hybrid polymeric nano-liposome encapsulating a conditionally replicative adenoviral vector (CRAdV) against CSCs, could present an intriguing intervention strategy. This review thus paves the way for exciting advancements in the field of nanotheranostics for the treatment of TNBC and beyond.
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Affiliation(s)
- Vinayak Nayak
- Indian Council of Agricultural Research- National Institute on Foot and Mouth Disease- International Center for Foot and Mouth Disease, Bhubaneswar, Odisha, India
| | - Sushmita Patra
- Advanced Centre for Treatment, Research and Education in Cancer, Tata Memorial Centre, Navi-Mumbai 410210, India
| | - Kshitij Rb Singh
- Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, 2-4 Hibikino, Wakamatsu, Kitakyushu, Japan.
| | - Bristy Ganguly
- Fish Health Management Division, ICAR-Central Institute of Freshwater Aquaculture, Bhubaneswar, Odisha, India
| | - Das Nishant Kumar
- PG Department of Biotechnology, Utkal University, Bhubaneswar, Odisha, India
| | - Deepak Panda
- PG Department of Biotechnology, Utkal University, Bhubaneswar, Odisha, India
| | - Ganesh Kumar Maurya
- Zoology Section, Mahila Mahavidyalaya, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Jay Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Sanatan Majhi
- PG Department of Biotechnology, Utkal University, Bhubaneswar, Odisha, India
| | - Rohit Sharma
- Department of Rasa Shastra and Bhaishajya Kalpana, Faculty of Ayurveda, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Shyam S Pandey
- Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, 2-4 Hibikino, Wakamatsu, Kitakyushu, Japan.
| | - Ravindra Pratap Singh
- Department of Biotechnology, Indira Gandhi National Tribal University, Amarkantak, Madhya Pradesh, India.
| | - Rout George Kerry
- PG Department of Biotechnology, Utkal University, Bhubaneswar, Odisha, India.
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Behera A, Mahapatra SR, Majhi S, Misra N, Sharma R, Singh J, Singh RP, Pandey SS, Singh KR, Kerry RG. Gold nanoparticle assisted colorimetric biosensors for rapid polyethylene terephthalate (PET) sensing for sustainable environment to monitor microplastics. Environ Res 2023; 234:116556. [PMID: 37414389 DOI: 10.1016/j.envres.2023.116556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 06/22/2023] [Accepted: 07/02/2023] [Indexed: 07/08/2023]
Abstract
The extremely widespread and ubiquitous nature of plastics, estimated to boost its global production by 26 billion tons till 2050. The large chunks of plastic waste that decomposed down to micro- or nano plastics (MNPs) leads to various ill effects on biological entities. The conventional PET detection methods lack rapid detection of microplastics due to variances in microplastic features, long-drawn-out sample pre-processing procedures and complex instrumentation. Therefore, an instantaneous colorimetric evaluation of microplastic will ensures the simplicity of conducting assays on field. Several nanoparticle-based biosensors that detects proteins, nucleic acids, metabolites operate on either cluster or disperse state of nanoparticle. However, gold nanoparticle (AuNPs) emerges an ideal scaffold for sensory element in lateral flow biosensors due to their simple surface functionalization, unique optoelectronic properties and varied colour spectrum depending on morphologies and aggregation state. In this paper an effort has been made in the form of a hypothesis using in silico tools as a basis to detect polyethylene terephthalate (PET) - most abundant type of microplastic using gold nanoparticle based lateral flow biosensor. We retrieved sequences of PET-binding synthetic peptides and modelled their 3-D structure using I-Tasser server. The best protein model for each peptide sequences are docked with PET monomers - BHET, MHET and other PET polymeric ligands, to evaluate their binding affinities. The synthetic peptide SP 1 (WPAWKTHPILRM) docked with BHET and (MHET)4 exhibits 1.5-fold increases in binding affinity as compared to reference PET anchor peptide Dermaseptin SI (DSI). The GROMACS molecular dynamics simulation studies of synthetic peptide SP 1 - BHET & - (MHET)4 complexes for 50 ns further confirmed the stable binding. RMSF, RMSD, hydrogen bonds, Rg and SASA analysis provides useful structural insights of the SP 1 complexes as compared to reference DSI. Furthermore, SP 1 functionalized AuNP-based colorimetric device was described in detail for detection of PET.
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Affiliation(s)
- Abhishek Behera
- Department of Biotechnology, Utkal University, Vani Vihar, Bhubaneswar, 751004, Odisha, India
| | - Soumya Ranjan Mahapatra
- School of Biotechnology, Kalinga Institute of Industrial Technology (KIIT), Deemed to be University, Bhubaneswar, 751024, Odisha, India
| | - Sanatan Majhi
- Department of Biotechnology, Utkal University, Vani Vihar, Bhubaneswar, 751004, Odisha, India
| | - Namrata Misra
- School of Biotechnology, Kalinga Institute of Industrial Technology (KIIT), Deemed to be University, Bhubaneswar, 751024, Odisha, India; KIIT-Technology Business Incubator (KIIT-TBI), Kalinga Institute of Industrial Technology (KIIT), Deemed to be University, Bhubaneswar, 751024, Odisha, India
| | - Rohit Sharma
- Department of Rasa Shastra and Bhaishajya Kalpana, Faculty of Ayurveda, Institute of Medical Sciences, Banaras Hindu University, Varanasi, 221005, Uttar Pradesh, India
| | - Jay Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, 221005, Uttar Pradesh, India
| | - Ravindra Pratap Singh
- Department of Biotechnology, Faculty of Science, Indira Gandhi National Tribal University, Amarkantak, 484887, Madhya Pradesh, India
| | - Shyam S Pandey
- Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, Kitakyushu, 808-0196, Fukuoka, Japan
| | - Kshitij Rb Singh
- Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, Kitakyushu, 808-0196, Fukuoka, Japan.
| | - Rout George Kerry
- Department of Biotechnology, Utkal University, Vani Vihar, Bhubaneswar, 751004, Odisha, India.
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Chaturvedi VK, Sharma B, Tripathi AD, Yadav DP, Singh KRB, Singh J, Singh RP. Biosynthesized nanoparticles: a novel approach for cancer therapeutics. Front Med Technol 2023; 5:1236107. [PMID: 37521721 PMCID: PMC10374256 DOI: 10.3389/fmedt.2023.1236107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 06/22/2023] [Indexed: 08/01/2023] Open
Abstract
Nanotechnology has become one of the most rapid, innovative, and adaptable sciences in modern science and cancer therapy. Traditional chemotherapy has limits owing to its non-specific nature and adverse side effects on healthy cells, and it remains a serious worldwide health issue. Because of their capacity to specifically target cancer cells and deliver therapeutic chemicals directly to them, nanoparticles have emerged as a viable strategy for cancer therapies. Nanomaterials disclose novel properties based on size, distribution, and shape. Biosynthesized or biogenic nanoparticles are a novel technique with anti-cancer capabilities, such as triggering apoptosis in cancer cells and slowing tumour growth. They may be configured to deliver medications or other therapies to specific cancer cells or tumour markers. Despite their potential, biosynthesized nanoparticles confront development obstacles such as a lack of standardisation in their synthesis and characterization, the possibility of toxicity, and their efficiency against various forms of cancer. The effectiveness and safety of biosynthesized nanoparticles must be further investigated, as well as the types of cancer they are most successful against. This review discusses the promise of biosynthesized nanoparticles as a novel approach for cancer therapeutics, as well as their mode of action and present barriers to their development.
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Affiliation(s)
- Vivek K. Chaturvedi
- Department of Gastroenterology, I.M.S., Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Bhaskar Sharma
- Neurobiology Laboratory, Department of Anatomy, All India Institute of Medical Sciences, New Delhi, India
| | - Abhay Dev Tripathi
- School of Biochemical Engineering, Indian Institute Technology-BHU, Varanasi, Uttar Pradesh, India
| | - Dawesh P. Yadav
- Department of Gastroenterology, I.M.S., Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Kshitij RB Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Jay Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Ravindra Pratap Singh
- Department of Biotechnology, Faculty of Science, Indira Gandhi National Tribal University, Amarkantak, Madhya Pradesh, India
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Singh RP, Verma SK, Ganesh RN, Raman A, Natarajan G, Kasthuri D, Krishnan B. A study on H-score threshold for p16ink4a immunoperoxidase expression in squamous cell tumours of oral cavity. J Oral Maxillofac Pathol 2023; 27:602. [PMID: 38033963 PMCID: PMC10683893 DOI: 10.4103/jomfp.jomfp_522_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 04/20/2023] [Accepted: 04/29/2023] [Indexed: 12/02/2023] Open
Abstract
Background Validity of various detection methods used are likely contributing factor to this wide variation of prevalence of HPV (0-73%) by using GP5/GP6/MY09/MY11 (L1) primer. PCR is a sensitive method but does not identify transcriptionally active High-risk Human papillomavirus and also does not indicate whether the virus is isolated from malignant tumour cells and non-neoplastic cells. P16ink4a Immunohistochemistry is a highly sensitive and Cost-effective surrogate marker for transcriptionally active high-risk HPV for oral cancer. Objective The aim of the present study was to evaluate the H-SCORE of p16 expression in the surface epithelial tumour sites of a large cohort of squamous cell carcinoma (SCC), severe dysplasia (SD). we sought to determine whether the p16 algorithm is reliable in Oral cavity SCC and severe dysplasia (SD). Materials and Methods This study used Immunohistochemistry in archival Formalin-fixed paraffin embedded specimens for assessment of p16 protein expression, cytoplasmic and nuclear staining intensity was categorized based on score (range, 0-3) and presence of tumour cell staining (0-100%). Results The majority of positive cases had low H-score of p16 staining except 3/161 (1.8%) cases of tongue SCC had positive for p16 with diffuse moderate staining with ≥2 scores. There were no significant differences in the distribution of demographic, exposure and histopathological characteristics between patients with and without P16 expression. Conclusion The present study demonstrated that p16 expression is a reliable HPV marker in the lateral border of the tongue with tonsil involvement but no other sites of the oral cavity. Further p16 IHC detection is required in large cohort of all sites of tongue squamous cell carcinoma studies to validate the marker of HPV.
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Affiliation(s)
- Ravindra Pratap Singh
- Department of Pathology, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, India
| | - Surendra Kumar Verma
- Department of Pathology, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, India
| | - Rajesh Nachiappa Ganesh
- Department of Pathology, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, India
| | - Arthy Raman
- Department of Pathology, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, India
| | - Girija Natarajan
- Department of Pathology, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, India
| | - D Kasthuri
- Department of Pathology, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, India
| | - B Krishnan
- Department of Dentistry, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, India
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Singh RP, Singh J. Smart and intelligent optical materials for sensing applications. LUMINESCENCE 2023; 38:806-810. [PMID: 37475110 DOI: 10.1002/bio.4546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 06/23/2023] [Indexed: 07/22/2023]
Abstract
This special issue (SI) entitled 'Smart and intelligent optical materials for sensing applications', published by Luminescence, Wiley focuses on the recent advancement of smart and intelligent optical materials for the fabrication of sensor technology for use in numerous fields such as pharmaceutical, biomedical, and environmental. Also, detailed highlights of their prospects in the fields, for example, of personalized health care, wearable devices, and plant stress monitoring are given. This SI includes 46 peer-reviewed articles, of which 15 are reviews written by well established researchers with expertise in the field, and the remaining 31 are research articles from world-leading scientists.
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Affiliation(s)
- Ravindra Pratap Singh
- Department of Biotechnology, Faculty of Science, Indira Gandhi National Tribal University, Amarkantak, Madhya Pradesh, India
| | - Jay Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh, India
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11
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Pandey A, Bhushan R, Rohilla A, Chakraborty S, Singh RP, Ojha S, Mehta D, Kumar S, Chamoli SK. Fabrication of thin Molybdenum backed target using rolling method. Appl Radiat Isot 2023; 199:110860. [PMID: 37290268 DOI: 10.1016/j.apradiso.2023.110860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Revised: 02/15/2023] [Accepted: 04/08/2023] [Indexed: 06/10/2023]
Abstract
A successful attempt was made to fabricate a thin foil of natural Mo target on a thick Au backing with Indium in between to improve adhesion between the foils. Rolling at elevated temperature was considered to fabricate Mo foil while gold foil was fabricated employing conventional rolling technique. The heating of Mo foil under natural environment lead to the oxidation or carbonization on foil surface which was confirmed through Energy Dispersive X-ray Spectroscopy (EDS) measurements. Indium of thickness ∼86μg/cm2 was evaporated on Mo foil to improve adhesion between Mo and Au foils. The characterization of fabricated thin Mo foil was done using the Energy Dispersive X-ray Spectroscopy (EDS) and the Scanning Electron microscope (SEM) techniques. Thickness measurement of the target (Mo-Au) was done using Energy Dispersive X-ray Fluorescence (EDXRF) technique, in the measurements the thickness of the Mo foil and of gold backing are found out to be 1.3 mg/cm2 and 9 mg/cm2 respectively.
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Affiliation(s)
- Anand Pandey
- Department of Physics & Astrophysics, University of Delhi, New Delhi, India
| | - Ravi Bhushan
- Department of Physics & Astrophysics, University of Delhi, New Delhi, India
| | - Aman Rohilla
- Institute of Space Sciences, Shandong University, Weihai 264209, People's Republic of China
| | - S Chakraborty
- Variable Energy Cyclotron Centre, Kolkata 700064, India
| | - R P Singh
- Inter University Accelerator Centre, Aruna Asaf Ali Marg, New Delhi, India
| | - Sunil Ojha
- Inter University Accelerator Centre, Aruna Asaf Ali Marg, New Delhi, India
| | - D Mehta
- Department of Physics, Punjab University, Chandigarh, India
| | - Sanjeev Kumar
- Goswami Ganesh Dutta Sanatan Dharma College, Sector 32 Chandigarh, India
| | - S K Chamoli
- Department of Physics & Astrophysics, University of Delhi, New Delhi, India.
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12
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Chincholikar P, Singh KR, Natarajan A, Kerry RG, Singh J, Malviya J, Singh RP. Green nanobiopolymers for ecological applications: a step towards a sustainable environment. RSC Adv 2023; 13:12411-12429. [PMID: 37091622 PMCID: PMC10116188 DOI: 10.1039/d2ra07707h] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Accepted: 04/15/2023] [Indexed: 04/25/2023] Open
Abstract
To minimize the usage of non-renewable resources and to maintain a sustainable environment, the exploitation of green nanobiopolymers should be enhanced. Biopolymers are generally developed from various microorganisms and plants in the specified condition. This review article discusses the current advances and trends of biopolymers, particularly in the arena of nanotechnology. In addition, discussion on various synthesis steps and structural characterization of green polymer materials like cellulose, chitin, and lignin is also encompassed. This article aims to coordinate the most recent outputs and possible future utilization of nanobiopolymers to the ecosystem with negligible effects by promoting the utilities of polymeric materials like polycaprolactones, starch, and nanocellulose. Additionally, strategic modification of cellulose into nanocellulose via rearrangement of the polymeric compound to serve various industrial and medical purposes has also been highlighted in the review. Specifically, the process of nanoencapsulation and its advancements in terms of nutritional aspects was also presented. The potential utility of green nanobiopolymers is one of the best cost-effective alternatives concerning circular economy and thereby helps to maintain sustainability.
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Affiliation(s)
- Preeti Chincholikar
- Department of Chemistry, IES College of Technology Bhopal Madhya Pradesh India
| | - Kshitij Rb Singh
- Department of Chemistry, Banaras Hindu University Varanasi Uttar Pradesh India
| | - Arunadevi Natarajan
- Department of Chemistry, PSGR Krishnammal College for Women Coimbatore Tamil Nadu India
| | - Rout George Kerry
- Department of Biotechnology, Utkal University Bhubaneswar Odisha India
| | - Jay Singh
- Department of Chemistry, Banaras Hindu University Varanasi Uttar Pradesh India
| | - Jitendra Malviya
- Department of Life Sciences & Biological Sciences, IES University Bhopal Madhya Pradesh India
| | - Ravindra Pratap Singh
- Department of Biotechnology, Indira Gandhi National Tribal University Amarkantak Madhya Pradesh India
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13
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Srivastava N, Singh R, Verma B, Rai AK, Tripathi SC, Bantun F, Faidah H, Singh RP, Jalal NA, Abdel-Razik NE, Haque S. Microbial cellulase production and stability investigations via graphene like carbon nanostructure derived from paddy straw. Int J Biol Macromol 2023; 237:124033. [PMID: 36918076 DOI: 10.1016/j.ijbiomac.2023.124033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 02/05/2023] [Accepted: 03/09/2023] [Indexed: 03/14/2023]
Abstract
Cellulases are among the most in-demand bioprocess enzymes, and the high cost of production, combined with their low enzymatic activity, is the main constraint, particularly in the biofuels industry. As a result, low-cost enzyme production modes with high activity and stability have emerged as the primary focus of research. Here, a method for producing a graphene like carbon nanostructure (GLCNs) has been investigated utilizing paddy straw (Ps), and its physicochemical characteristics have been examined using a variety of techniques including XRD, FT-IR, SEM and TEM. Further, the pretreatment of Ps feedstock for cellulase production was done using diluted waste KOH liquid collected during the preparation of the GLCNs. To increase the production and stability of the enzyme, newly prepared GLCNs is utilized as a nanocatalyst. Using 15 mg of GLCNs, 35 IU/gds FP activity was seen after 72 h, followed by 158 IU/gds EG and 114 IU/gds BGL activity in 96 h. This nanocatalyst supported enzyme was thermally stable at 70 °C up to 15 h and exhibited stability at pH 7.0 for 10 h by holding 66 % of its half-life.
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Affiliation(s)
- Neha Srivastava
- Department of Chemical Engineering & Technology, Indian Institute of Technology (BHU) Varanasi, Varanasi 221005, Uttar Pradesh, India.
| | - Rajeev Singh
- Department of Environmental Science, Jamia Millia Islamia, (A Central University), New Delhi 110025, India
| | - Bhawna Verma
- Department of Chemical Engineering & Technology, Indian Institute of Technology (BHU) Varanasi, Varanasi 221005, Uttar Pradesh, India.
| | - Ashutosh Kumar Rai
- Department of Biochemistry, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam 31441, Saudi Arabia
| | - Subhash C Tripathi
- Institute of Applied Sciences & Humanities, Department of Chemistry, GLA University, Mathura 281406, Uttar Pradesh, India
| | - Farkad Bantun
- Department of Microbiology, Faculty of Medicine, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Hani Faidah
- Department of Microbiology, Faculty of Medicine, Umm Al-Qura University, Makkah, Saudi Arabia
| | | | - Naif A Jalal
- Department of Microbiology, Faculty of Medicine, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Noha E Abdel-Razik
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, Jazan University, Gizan, Saudi Arabia
| | - Shafiul Haque
- Research and Scientific Studies Unit, College of Nursing and Allied Health Sciences, Jazan University, Jazan 45142, Saudi Arabia; Centre of Medical and Bio-Allied Health Sciences Research, Ajman University, Ajman, United Arab Emirates
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14
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Srivastava N, Singh R, Srivastava M, Mohammad A, Harakeh S, Pratap Singh R, Pal DB, Haque S, Tayeb HH, Moulay M, Kumar Gupta V. Impact of nanomaterials on sustainable pretreatment of lignocellulosic biomass for biofuels production: An advanced approach. Bioresour Technol 2023; 369:128471. [PMID: 36521823 DOI: 10.1016/j.biortech.2022.128471] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 12/03/2022] [Accepted: 12/06/2022] [Indexed: 06/17/2023]
Abstract
Biomass to biofuels production technology appears to be one of the most sustainable strategies among various renewable energy resources. Herein, pretreatment is an unavoidable and key step to increase free cellulose availability and digestibility to produce green fuels. Various existing pretreatment technologies of lignocellulosics biomasses (LCBs) face distinct challenges e.g., energy consuming, cost intensive, may lead partial removal of lignin, complex inhibitors production as well as may cause environmental pollutions. These, limitations may be overcome with the application of nanomaterials, employed as nanocatalysts during the pretreatment process of LCBs. In this prospect, the present review focuses and summarizes results of numerous studies and exploring the utilizations of magnetic, carbon based nanostructure, and nanophotocatalysts mediated pretreatment processes along with their possible mechanisms to improve the biofuels production compared to conventional chemical based pretreatment approaches. Furthermore, different aspects of nanomaterials based pretreatment methods with their shortcomings and future prospects have been discussed.
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Affiliation(s)
- Neha Srivastava
- Department of Chemical Engineering & Technology, Indian Institute of Technology (BHU), Varanasi, Varanasi-221005, Uttar Pradesh, India
| | - Rajeev Singh
- Department of Environmental Science, Jamia Millia Islamia, (A Central University), New Delhi 110025, India
| | - Manish Srivastava
- Department of Chemical Engineering & Technology, Indian Institute of Technology (BHU), Varanasi, Varanasi-221005, Uttar Pradesh, India
| | - Akbar Mohammad
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Steve Harakeh
- King Fahd Medical Research Center, and Yousef Abdullatif Jameel Chair of Prophetic Medicine Application, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | | | - Dan Bahadur Pal
- Department of Chemical Engineering, Harcourt Butler Technical University, Nawabganj Kanpur 208002, Uttar Pradesh, India
| | - Shafiul Haque
- Research and Scientific Studies Unit, College of Nursing and Allied Health Sciences, Jazan University, Jazan 45142, Saudi Arabia; Centre of Medical and Bio-Allied Health Sciences Research, Ajman University, Ajman, United Arab Emirates
| | - Hossam H Tayeb
- Nanomedicine Unit, Center of Innovation in Personalised Medicine, King Abdulaziz University, 21589 Jeddah, Saudi Arabia; Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Mohammed Moulay
- Embryonic Stem Cell Research Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Vijai Kumar Gupta
- Biorefining and Advanced Materials Research Center, SRUC, Kings Buildings, West Mains Road, Edinburgh EH9 3JG, UK; Center for Safe and Improved Food, SRUC, Kings Buildings, West Mains Road, Edinburgh EH9 3JG, UK.
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15
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Pal DB, Tiwari AK, Prasad N, Syed A, Bahkali AH, Srivastava N, Singh RP, Gupta VK. Sustainable valorization of water hyacinth waste pollutant via pyrolysis for advance microbial fuel investigation. Chemosphere 2023; 314:137602. [PMID: 36563719 DOI: 10.1016/j.chemosphere.2022.137602] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 11/29/2022] [Accepted: 12/17/2022] [Indexed: 06/17/2023]
Abstract
Present study has been focused on the bio-energy potential of waste biomass (water hyacinth leaves and its stem). Pyrolysis of both biomasses were investigated at five different heating rates (5-25 °C/min) using thermogravimetric analyzer. For both biomasses, maximum thermal degradation occurred within the temperature range of 200-400 °C, which is the active pyrolytic zone. Three non-iso-conversional (degradation models) including the Kissinger-Akahira-Sunose, Flynn-Wall-Ozawa, and Starink were used to calculate the activation energy of both biomasses. The activation energy was around 92-98 kJ/mol for water hyacinth leaves and 151-153 kJ/mol for water hyacinth stems. The results suggest that these low-cost abundantly available biomasses have a good potential for the production of solid bio-fuel.
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Affiliation(s)
- Dan Bahadur Pal
- Department of Chemical Engineering, Birla Institute of Technology, Mesra Ranchi, 835215, Jharkhand, India; Department of Chemical Engineering, Harcourt Butler Technical University, Nawabganj Kanpur, 208002, Uttar Pradesh, India.
| | - Amit Kumar Tiwari
- Department of Chemical Engineering, Birla Institute of Technology, Mesra Ranchi, 835215, Jharkhand, India
| | - Nirupama Prasad
- Department of Chemical Engineering, Birsa Institute of Technology Sindri, Dhanbad, 828123, India
| | - Asad Syed
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. 2455, Riyadh, 11451, Saudi Arabia
| | - Ali H Bahkali
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. 2455, Riyadh, 11451, Saudi Arabia
| | - Neha Srivastava
- Department of Chemical Engineering & Technology, Indian Institute of Technology (BHU) Varanasi Varanasi, 221005, Uttar Pradesh, India
| | | | - Vijai Kumar Gupta
- Biorefining and Advanced Materials Research Center, Scotland's Rural College (SRUC), Kings Buildings, West Mains Road, Edinburgh, EH9 3JG, UK; Center for Safe and Improved Food, Scotland's Rural College (SRUC), Kings Buildings, West Mains Road, Edinburgh, EH9 3JG, UK.
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16
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Sabui P, Mallick S, Singh KRB, Natarajan A, Verma R, Singh J, Singh RP. Potentialities of fluorescent carbon nanomaterials as sensor for food analysis. LUMINESCENCE 2022. [PMID: 36355396 DOI: 10.1002/bio.4406] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 10/15/2022] [Accepted: 10/31/2022] [Indexed: 11/12/2022]
Abstract
Food safety and quality are among the most significant and prevalent research areas worldwide. The fabrication of appropriate technical procedures or devices for the recognition of hazardous features in foods is essential to safeguard food materials. In the recent era, developing high-performance sensors based on carbon nanomaterial for food safety investigation has made noteworthy progress. Hence this review briefly highlights the different detection approaches (colorimetric sensor, fluorescence sensor, surface-enhanced Raman scattering, surface plasmon resonance, chemiluminescence, and electroluminescence), functional carbon nanomaterials with various dimensions (quantum dots, graphene quantum dots) and detection mechanisms. Further, this review emphasizes the assimilation of carbon nanomaterials with optical sensors to identify multiple contaminants in food products. The insights of carbon-based nanomaterials optical sensors for pesticides and insecticides, toxic metals, antibiotics, microorganisms, and mycotoxins detection are described in detail. Finally, the opportunities and future perspectives of nanomaterials-based optical analytical approaches for detecting various food contaminants are discussed.
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Affiliation(s)
- Piyali Sabui
- Department of Zoology The University of Burdwan Golapbag Bardhaman West Bengal India
| | - Sadhucharan Mallick
- Department of Chemistry, Faculty of Science Indira Gandhi National Tribal University Amarkantak MP India
| | - Kshitij R. B. Singh
- Department of Chemistry, Institute of Science Banaras Hindu University Varanasi Uttar Pradesh India
| | - Arunadevi Natarajan
- Department of Chemistry PSGR Krishnammal College for Women Coimbatore Tamil Nadu India
| | - Ranjana Verma
- Department of Physics, Institute of Science Banaras Hindu University Varanasi Uttar Pradesh India
| | - Jay Singh
- Department of Chemistry, Institute of Science Banaras Hindu University Varanasi Uttar Pradesh India
| | - Ravindra Pratap Singh
- Department of Biotechnology, Faculty of Science Indira Gandhi National Tribal University Amarkantak Madhya Pradesh India
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17
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Das PP, Singh KR, Nagpure G, Mansoori A, Singh RP, Ghazi IA, Kumar A, Singh J. Plant-soil-microbes: A tripartite interaction for nutrient acquisition and better plant growth for sustainable agricultural practices. Environ Res 2022; 214:113821. [PMID: 35810815 DOI: 10.1016/j.envres.2022.113821] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 06/24/2022] [Accepted: 07/01/2022] [Indexed: 06/15/2023]
Abstract
Plants can achieve their proper growth and development with the help of microorganisms associated with them. Plant-associated microbes convert the unavailable nutrients to available form and make them useful for plants. Besides nutrient acquisition, soil microbes also inhibit the pathogens that cause harm to plant growth and induces defense response. Due to the beneficial activities of soil nutrient-microbe-plant interactions, it is necessary to study more on this topic and develop microbial inoculant technology in the agricultural field for better crop improvement. The soil microbes can be engineered, and plant growth-promoting rhizobacteria (PGPR) and plant growth-promoting bacteria (PGPB) technology can be developed as well, as its application can be improved for utilization as biofertilizer, biopesticides, etc., instead of using harmful chemical biofertilizers. Moreover, plant growth-promoting microbe inoculants can enhance crop productivity. Although, scientists have discussed several tools and techniques by omics and gene editing approaches for crop improvement to avoid biotic and abiotic stress and make the plant healthier and more nutritive. However, beneficial soil microbes that help plants with the nutrient acquisition, development, and stress resistance were ignored, and farmers started utilizing chemical fertilizers. Thus, this review attempts to summarize the interaction system of plant microbes, the role of beneficiary soil microbes in the rhizosphere zone, and their role in plant health promotion, particularly in the nutrition acquisition of the plant. The review will also provide a better understanding of soil microbes that can be exploited as biofertilizers and plant growth promoters in the field to create environmentally friendly, sustainable agriculture systems.
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Affiliation(s)
- Prajna Priyadarshini Das
- Department of Plant Sciences, School of Life Sciences, University of Hyderabad, Gachibowli, Hyderabad, 500046, India
| | - Kshitij Rb Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh, 211005, India
| | - Gunjan Nagpure
- Department of Biotechnology, Faculty of Science, Indira Gandhi National Tribal University, Amarkantak, Madhya Pradesh, 484887, India
| | - Aadil Mansoori
- Department of Botany, Faculty of Science, Indira Gandhi National Tribal University, Amarkantak, Madhya Pradesh, 484887, India
| | - Ravindra Pratap Singh
- Department of Biotechnology, Faculty of Science, Indira Gandhi National Tribal University, Amarkantak, Madhya Pradesh, 484887, India
| | - Irfan Ahmad Ghazi
- Department of Plant Sciences, School of Life Sciences, University of Hyderabad, Gachibowli, Hyderabad, 500046, India
| | - Anirudh Kumar
- Department of Botany, Faculty of Science, Indira Gandhi National Tribal University, Amarkantak, Madhya Pradesh, 484887, India.
| | - Jay Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh, 211005, India.
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18
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Thapa S, Singh KRB, Verma R, Singh J, Singh RP. State-of-the-Art Smart and Intelligent Nanobiosensors for SARS-CoV-2 Diagnosis. Biosensors 2022; 12:bios12080637. [PMID: 36005033 PMCID: PMC9405813 DOI: 10.3390/bios12080637] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 08/10/2022] [Accepted: 08/11/2022] [Indexed: 12/16/2022]
Abstract
The novel coronavirus appeared to be a milder infection initially, but the unexpected outbreak of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), commonly called COVID-19, was transmitted all over the world in late 2019 and caused a pandemic. Human health has been disastrously affected by SARS-CoV-2, which is still evolving and causing more serious concerns, leading to the innumerable loss of lives. Thus, this review provides an outline of SARS-CoV-2, of the traditional tools to diagnose SARS-CoV-2, and of the role of emerging nanomaterials with unique properties for fabricating biosensor devices to diagnose SARS-CoV-2. Smart and intelligent nanomaterial-enabled biosensors (nanobiosensors) have already proven their utility for the diagnosis of several viral infections, as various detection strategies based on nanobiosensor devices are already present, and several other methods are also being investigated by researchers for the determination of SARS-CoV-2 disease; however, considerably more is undetermined and yet to be explored. Hence, this review highlights the utility of various nanobiosensor devices for SARS-CoV-2 determination. Further, it also emphasizes the future outlook of nanobiosensing technologies for SARS-CoV-2 diagnosis.
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Affiliation(s)
- Sushma Thapa
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, Uttar Pradesh, India
| | - Kshitij RB Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, Uttar Pradesh, India
| | - Ranjana Verma
- Department of Physics, Institute of Science, Banaras Hindu University, Varanasi 221005, Uttar Pradesh, India
| | - Jay Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, Uttar Pradesh, India
- Correspondence: (J.S.); or (R.P.S.)
| | - Ravindra Pratap Singh
- Department of Biotechnology, Faculty of Science, Indira Gandhi National Tribal University, Amarkantak 484887, Madhya Pradesh, India
- Correspondence: (J.S.); or (R.P.S.)
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19
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Chakravarty N, Sharma M, Kumar P, Singh RP. Biochemical and molecular insights on the bioactivity and binding interactions of Bacillus australimaris NJB19 L-asparaginase. Int J Biol Macromol 2022; 215:1-11. [PMID: 35718140 DOI: 10.1016/j.ijbiomac.2022.06.110] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Revised: 06/08/2022] [Accepted: 06/14/2022] [Indexed: 11/05/2022]
Abstract
L-asparaginase, an antileukemic enzyme, is indispensable to the treatment of Acute Lymphoblastic Leukemia (ALL). However, the intrinsic glutaminase activity entails various side effects to the patients; thus, an improved version of the enzyme lacking glutaminase activity would be a requisite for effective treatment management of ALL. The present study highlights the biochemical and molecular characteristics of the recombinant glutaminase-free L-asparaginase from Bacillus australimaris NJB19 (BaAsp). Investigation of the active site architecture of the protein unraveled the binding interactions of BaAsp with its substrate. Comparative analysis of the L-asparaginase sequences revealed few substitutions of key amino acids in the BaAsp that could construe its substrate selectivity and specificity. The purified heterologously expressed protein (42 kDa) displayed maximum L-asparaginase activity at 35-40 °C and pH 8.5-9, with no observed L-glutaminase activity. The kinetic parameters, Km and Vmax, were determined as 45.6 μM and 0.16 μmoles min-1, respectively. Furthermore, in silico analysis revealed a conserved zinc-binding site in the protein, which is generally implicated in inhibiting the L-asparaginase activity. However, BaAsp was not inhibited by zinc at 1 mM concentration. Therefore, the findings provide insights on the biochemical and molecular details of BaAsp, which could be valuable in formulating it for alternate antileukemic drug therapy.
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Affiliation(s)
- Namrata Chakravarty
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee 247667, India
| | - Monica Sharma
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee 247667, India
| | - Pravindra Kumar
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee 247667, India
| | - R P Singh
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee 247667, India.
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20
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Raskatla V, Singh BP, Patil S, Kumar V, Singh RP. Speckle-based deep learning approach for classification of orbital angular momentum modes. J Opt Soc Am A Opt Image Sci Vis 2022; 39:759-765. [PMID: 35471402 DOI: 10.1364/josaa.446352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 03/08/2022] [Indexed: 06/14/2023]
Abstract
We present a speckle-based deep learning approach for orbital angular momentum (OAM) mode classification. In this method, we have simulated the speckle fields of the Laguerre-Gauss (LG), Hermite-Gauss (HG), and superposition modes by multiplying these modes with a random phase function and then taking the Fourier transform. The intensity images of these speckle fields are fed to a convolutional neural network (CNN) for training a classification model that classifies modes with an accuracy >99%. We have trained and tested our method against the influence of atmospheric turbulence by training the models with perturbed LG, HG, and superposition modes and found that models are still able to classify modes with an accuracy >98%. We have also trained and tested our model with experimental speckle images of LG modes generated by three different ground glasses. We have achieved a maximum accuracy of 96% for the most robust case, where the model is trained with all simulated and experimental data. The novelty of the technique is that one can do the mode classification just by using a small portion of the speckle fields because speckle grains contain the information about the original mode, thus eliminating the need for capturing the whole modal field, which is modal dependent.
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21
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Singh KRB, Rathee S, Nagpure G, Singh J, Singh RP. Smart and emerging nanomaterials-based biosensor for SARS-CoV-2 detection. Mater Lett 2022; 307:131092. [PMID: 34690389 PMCID: PMC8519812 DOI: 10.1016/j.matlet.2021.131092] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Accepted: 10/12/2021] [Indexed: 05/18/2023]
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is a primary cause of the COVID-19 pandemic. To date, various detection approaches are already present, and many other techniques are also being developed for the rapid and real-time detection of COVID-19 infection in the wake of this pandemic. Hence, this featured review will provide an overview of COVID-19, its biomarkers, current diagnostic techniques, and emerging smart nanomaterials-based biosensing approaches; apart from this, it will also extend some light on future perspectives of biosensing technologies for SARS-CoV-2 diagnosis.
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Affiliation(s)
- Kshitij R B Singh
- Department of Chemistry, Govt. V. Y. T. P.G. Autonomous College, Durg, Chhattisgarh (491001), India
| | - Shweta Rathee
- Department of Food Science and Technology, National Institute of Food Technology Entrepreneurship and Management, Sonepat, Haryana (131028), India
| | - Gunjan Nagpure
- Department of Biotechnology, Faculty of Science, Indira Gandhi National Tribal University, Amarkantak, Madhya Pradesh (484886), India
| | - Jay Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh (221005), India
| | - Ravindra Pratap Singh
- Department of Biotechnology, Faculty of Science, Indira Gandhi National Tribal University, Amarkantak, Madhya Pradesh (484886), India
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22
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Singh P, Singh KRB, Verma R, Prasad P, Verma R, Das SN, Singh J, Singh RP. Preparation, antibacterial activity, and electrocatalytic detection of hydrazine based on biogenic CuFeO 2/PANI nanocomposites synthesized using Aloe barbadensis miller. NEW J CHEM 2022. [DOI: 10.1039/d2nj00913g] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This study reports the synthesis of B-CuFeO2 nanocomposites (NCs) and B-CuFeO2/PANI NCs from Aloe vera gel extract and their utility for label-free detection of hydrazine and their antibacterial efficiency.
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Affiliation(s)
- Pooja Singh
- Department of Biotechnology, Faculty of Science, Indira Gandhi National Tribal University, Amarkantak, Madhya Pradesh 484887, India
| | - Kshitij RB Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
| | - Rahul Verma
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
| | - Priyanka Prasad
- Department of Botany, Faculty of Science, Indira Gandhi National Tribal University, Amarkantak, Madhya Pradesh 484887, India
| | - Ranjana Verma
- Department of Physics, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
| | - Subha Narayan Das
- Department of Botany, Faculty of Science, Indira Gandhi National Tribal University, Amarkantak, Madhya Pradesh 484887, India
| | - Jay Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
| | - Ravindra Pratap Singh
- Department of Biotechnology, Faculty of Science, Indira Gandhi National Tribal University, Amarkantak, Madhya Pradesh 484887, India
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23
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Swathika M, Singh KRB, Mehala M, Pandey S, Singh J, Singh RP, Natarajan A. Design and synergistic effect of nano-sized epoxy-NiCo 2O 4 nanocomposites for anticorrosion applications. RSC Adv 2022; 12:14888-14901. [PMID: 35702244 PMCID: PMC9112074 DOI: 10.1039/d2ra01773c] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Accepted: 04/29/2022] [Indexed: 12/30/2022] Open
Abstract
This study reports the synthesis of nano-sized epoxy-NiCo2O4 nanocomposites and their anti-corrosive efficiency to attain sustainable development.
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Affiliation(s)
- M. Swathika
- Department of Chemistry, PSGR Krishnammal College for Women, Coimbatore, Tamil Nadu 641004, India
| | - Kshitij RB Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
| | - M. Mehala
- Department of Chemistry, PSGR Krishnammal College for Women, Coimbatore, Tamil Nadu 641004, India
| | - Sadanand Pandey
- Department of Chemistry, College of Natural Science, Yeungnam University, 280 Daehak-Ro, Gyeongsan, Gyeongbuk 38541, Republic of Korea
| | - Jay Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
| | - Ravindra Pratap Singh
- Department of Biotechnology, Indira Gandhi National Tribal University, Amarkantak, Madhya Pradesh 484887, India
| | - Arunadevi Natarajan
- Department of Chemistry, PSGR Krishnammal College for Women, Coimbatore, Tamil Nadu 641004, India
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Singh AK, Lakshmi G, Fernandes M, Sarkar T, Gulati P, Singh RP, Solanki PR. A simple detection platform based on molecularly imprinted polymer for AFB1 and FuB1 mycotoxins. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106730] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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25
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Mitchell O, Kelly E, Ethunandan M, Horlock N, Sharma S, Singh RP. Outcomes of free flap reconstructive surgery in head and neck cancer patients over 80-years old. Br J Oral Maxillofac Surg 2021; 59:1090-1094. [PMID: 34454777 DOI: 10.1016/j.bjoms.2021.05.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Accepted: 05/03/2021] [Indexed: 11/26/2022]
Abstract
An increasing elderly population in the United Kingdom has led to an increasing number of older patients with head and neck cancer, resulting in a greater demand for complex head and neck reconstructive surgery in this potentially high-risk age group. A possible perceived poorer tolerance to such major treatment risks under-treating some of these patients. The purpose of this study was to assess the outcomes in the elderly population (older than 80 years) who had undergone free flap reconstruction following head and neck cancer resection. A retrospective review of 127 patients was performed. Eighteen patients were 80 or older (14.2%) and 109 under 80 (85.8%). The elderly group experienced increased number of postoperative medical complications (p=0.01), but the surgical complications were not significantly different in the two groups (p=0.4). The average length of hospital stay was significantly longer in the older group (p=0.01). There was one flap failure during the study period, which belonged to the younger group of patients. Elderly patients undergoing free flap reconstruction experience an increased rate of postoperative medical complications resulting in an increased length of hospital stay. However, good surgical outcomes can still be achieved in this age group, and therefore age alone should not be considered as a primary factor in head and neck cancer management.
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Affiliation(s)
- O Mitchell
- Department of Oral and Maxillofacial Surgery, University Hospital Southampton NHS Foundation Trust, Tremona Road, Southampton SO16 6YD, United Kingdom
| | - E Kelly
- Regional Maxillofacial Unit, Aintree University Hospital, Lower Lane, Liverpool L9 7AL, United Kingdom
| | - M Ethunandan
- Department of Oral and Maxillofacial Surgery, University Hospital Southampton NHS Foundation Trust, Tremona Road, Southampton SO16 6YD, United Kingdom
| | - N Horlock
- Department of Oral and Maxillofacial Surgery, University Hospital Southampton NHS Foundation Trust, Tremona Road, Southampton SO16 6YD, United Kingdom
| | - S Sharma
- Department of Oral and Maxillofacial Surgery, University Hospital Southampton NHS Foundation Trust, Tremona Road, Southampton SO16 6YD, United Kingdom
| | - R P Singh
- Department of Oral and Maxillofacial Surgery, University Hospital Southampton NHS Foundation Trust, Tremona Road, Southampton SO16 6YD, United Kingdom.
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26
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Singh P, Singh KR, Singh J, Prasad P, Singh RP. Bioinspired triangular ZnO nanoclusters synthesized by Argyreia nervosa nascent leaf extract for the efficient electrochemical determination of vitamin C. RSC Adv 2021; 11:25752-25763. [PMID: 35478888 PMCID: PMC9037078 DOI: 10.1039/d1ra04704c] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 07/11/2021] [Indexed: 12/12/2022] Open
Abstract
This work deals with the synthesis of bioinspired triangular ZnO nanoclusters (bT-ZnO NCs) from Argyreia nervosa nascent leaf extract for their effective antibacterial activity and further utilization as a platform for the electrocatalytic determination of ascorbic acid (AA; vitamin C) for applications in the agricultural domain. The structural, optical, and morphological characteristics of the synthesized bT-ZnO NCs were analyzed by UV-vis, FT-IR, XRD, AFM, SEM, TEM, HR-TEM, and EDX techniques. After this, bT-ZnO NCs were electrophoretically deposited onto an indium-tin-oxide (ITO) glass substrate and assessed for the electro-oxidation of AA by cyclic voltammetry (CV), and from this it was proven that bT-ZnO NCs had a very high electrochemical sensitivity of 29.88 μA cm−2 toward AA and a low limit of detection of 0.5321 mM under the optimized experimental conditions. Thus, it provides a potential sensing platform for electrochemical studies to detect AA. Moreover, bT-ZnO NCs were preliminarily investigated for their antibacterial activity, and the obtained results showed that the bT-ZnO NCs have potency as an antibacterial agent. This study reports the synthesis of bioinspired triangular ZnO nanoclusters (bT-ZnO NCs) from Argyreia nervosa nascent leaf extract and their use in the agricultural domain for the label-free detection of vitamin C and its antibacterial efficiency.![]()
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Affiliation(s)
- Pooja Singh
- Department of Biotechnology, Faculty of Science, Indira Gandhi National Tribal University Amarkantak Madhya Pradesh (484886) India +91-91-0934-6565
| | - Kshitij Rb Singh
- Department of Chemistry, Govt. V. Y. T. PG Autonomous College Durg Chhattisgarh India
| | - Jay Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University Varanasi Uttar Pradesh (221005) India
| | - Priyanka Prasad
- Department of Botany, Faculty of Science, Indira Gandhi National Tribal University Amarkantak Madhya Pradesh (484886) India
| | - Ravindra Pratap Singh
- Department of Biotechnology, Faculty of Science, Indira Gandhi National Tribal University Amarkantak Madhya Pradesh (484886) India +91-91-0934-6565
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27
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Singh KR, Nayak V, Singh J, Singh AK, Singh RP. Potentialities of bioinspired metal and metal oxide nanoparticles in biomedical sciences. RSC Adv 2021; 11:24722-24746. [PMID: 35481029 PMCID: PMC9036962 DOI: 10.1039/d1ra04273d] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Accepted: 07/01/2021] [Indexed: 12/15/2022] Open
Abstract
To date, various reports have shown that metallic gold bhasma at the nanoscale form was used as medicine as early as 2500 B.C. in India, China, and Egypt. Owing to their unique physicochemical, biological, and electronic properties, they have broad utilities in energy, environment, agriculture and more recently, the biomedical field. The biomedical domain has been used in drug delivery, imaging, diagnostics, therapeutics, and biosensing applications. In this review, we will discuss and highlight the increasing control over metal and metal oxide nanoparticle structures as smart nanomaterials utilized in the biomedical domain to advance the role of biosynthesized nanoparticles for improving human health through wide applications in the targeted drug delivery, controlled release drug delivery, wound dressing, tissue scaffolding, and medical implants. In addition, we have discussed concerns related to the role of these types of nanoparticles as an anti-viral agent by majorly highlighting the ways to combat the Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2) pandemic, along with their prospects.
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Affiliation(s)
- Kshitij Rb Singh
- Department of Chemistry, Govt. V.Y.T. PG Autonomous College Durg Chhattisgarh (491001) India
| | - Vanya Nayak
- Department of Biotechnology, Faculty of Science, Indira Gandhi National Tribal University Amarkantak Madhya Pradesh (484886) India +91-91-0934-6565
| | - Jay Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University Varanasi Uttar Pradesh (221005) India
| | - Ajaya Kumar Singh
- Department of Chemistry, Govt. V.Y.T. PG Autonomous College Durg Chhattisgarh (491001) India
| | - Ravindra Pratap Singh
- Department of Biotechnology, Faculty of Science, Indira Gandhi National Tribal University Amarkantak Madhya Pradesh (484886) India +91-91-0934-6565
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28
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Singh P, Singh KR, Singh J, Das SN, Singh RP. Tunable electrochemistry and efficient antibacterial activity of plant-mediated copper oxide nanoparticles synthesized by Annona squamosa seed extract for agricultural utility. RSC Adv 2021; 11:18050-18060. [PMID: 35480210 PMCID: PMC9033215 DOI: 10.1039/d1ra02382a] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 05/05/2021] [Indexed: 11/21/2022] Open
Abstract
The present report deals with the synthesis of plant-mediated copper oxide nanoparticles (pm-CuO NPs) from Annona squamosa aqueous seed extract for effective antibacterial activity and the further utilization of this as a platform for the electrocatalytic determination of hydrogen peroxide (H2O2) for applications in the agricultural domain. The structural, optical and morphological characteristics of the synthesized pm-CuO NPs were analyzed by UV-Vis, XRD, FT-IR, AFM, SEM, TEM, HR-TEM and EDX. After this, pm-CuO NPs were preliminarily investigated for antibacterial activity on Gram-positive and Gram-negative bacterial strains, and further, their activity was validated for assessing their antibacterial efficiency on the Xanthomonas oryzae, a plant pathogenic bacteria strain, and the obtained results showed that pm-CuO NPs have potency as an effective antibacterial agent for the treatment of the bacterial blight of rice caused by X. oryzae in the rice crop, which reduces the rice crop productivity. Further, pm-CuO NPs were electrophoretically deposited onto an indium–tin–oxide (ITO) glass substrate and assessed for the electro-oxidation of H2O2 by cyclic voltammetry (CV), and from this it was proved that pm-CuO NPs had a very high electrochemical sensitivity of 49 μA μM−1 cm−2 towards H2O2 and a low detection limit of 574 μM, with these responses obtained under optimized experimental conditions. Thus, pm-CuO NPs also provide a potential sensing platform for electrochemical studies to detect H2O2 produced during plant stress surroundings to properly manage crops susceptible to oxidative damage by elevated H2O2 levels during stress. This study reports plant mediated-copper oxide nanoparticles synthesis from Annona squamosa and their real-life application in agricultural domain for label-free detection of H2O2 and its antibacterial efficiency for combating rice crop pathogen.![]()
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Affiliation(s)
- Pooja Singh
- Department of Biotechnology, Indira Gandhi National Tribal University Amarkantak M.P. 484887 India +91-91-0934-6565
| | - Kshitij Rb Singh
- Department of Chemistry, Govt. V. Y. T. PG Autonomous College Durg Chhattisgarh India
| | - Jay Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University Varanasi U.P. 221005 India
| | - Subha Narayan Das
- Department of Botany, Indira Gandhi National Tribal University Amarkantak M.P. 484887 India
| | - Ravindra Pratap Singh
- Department of Biotechnology, Indira Gandhi National Tribal University Amarkantak M.P. 484887 India +91-91-0934-6565
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29
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Wu ZY, Meng XF, Jiao YS, Guo BL, Sui XH, Ma SJ, Chen WF, Singh RP. Bradyrhizobium arachidis mediated enhancement of (oxy)matrine content in the medicinal legume Sophora flavescens. Lett Appl Microbiol 2021; 72:570-577. [PMID: 33474743 DOI: 10.1111/lam.13453] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 01/17/2021] [Accepted: 01/17/2021] [Indexed: 12/30/2022]
Abstract
Effect of rhizobial inoculation and nitrate application on the content of bioactive compounds in legume plants is an interesting aspect for interactions among microbes, plants and chemical fertilizers, as well as for cultivated practice of legumes. In this study, nitrate (0, 5 and 20 mmol l-1 ) and Bradyrhizobium arachidis strain CCBAU 051107T were applied, individually or in combination, to the root rhizosphere of the medicinal legume Sophora flavescens Aiton (SFA). Then the plant growth, nodulation and active ingredients including (oxy)matrine of SFA were determined and compared. Rhizobial inoculation alone significantly increased the numbers and fresh weight of root nodules. Nodulation was significantly inhibited due to nitrate (5 and 20 mmol l-1 ). Only oxymatrine was detected in the control plants without rhizobial inoculation and nitrate supplement, while both oxymatrine and matrine were synthesized in plants treated with inoculation of B. arachidis or supplied with nitrate. The content of oxymatrine was the highest in plants inoculated solely with rhizobia and was not significantly altered by additional application of nitrate. Combinations of B. arachidis inoculation and different concentrations of nitrate did not significantly change the concentrations of (oxy)matrine in the plant. In conclusion, sole rhizobial inoculation was the best approach to increase the contents of key active ingredients oxymatrine and matrine in the medicinal legume SFA.
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Affiliation(s)
- Z Y Wu
- State Key Laboratory of Agrobiotechnology, Beijing, China.,College of Biological Sciences and Rhizobium Research Center, China Agricultural University, Beijing, China
| | - X F Meng
- State Key Laboratory of Agrobiotechnology, Beijing, China.,College of Biological Sciences and Rhizobium Research Center, China Agricultural University, Beijing, China
| | - Y S Jiao
- State Key Laboratory of Agrobiotechnology, Beijing, China.,College of Biological Sciences and Rhizobium Research Center, China Agricultural University, Beijing, China
| | - B L Guo
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - X H Sui
- State Key Laboratory of Agrobiotechnology, Beijing, China.,College of Biological Sciences and Rhizobium Research Center, China Agricultural University, Beijing, China
| | - S J Ma
- College of Food Science and Pharmacy, Xinjiang Agricultural University, Urumqi, China
| | - W F Chen
- State Key Laboratory of Agrobiotechnology, Beijing, China.,College of Biological Sciences and Rhizobium Research Center, China Agricultural University, Beijing, China
| | - R P Singh
- Department of Research and Development, Biotechnology, Uttaranchal University, Dehradun, Uttarakhand, India
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30
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Mandal M, Singh RP. Emergent superconductivity by Re doping in type -II Weyl semimetal NiTe 2. J Phys Condens Matter 2021; 33:135602. [PMID: 33406510 DOI: 10.1088/1361-648x/abd8f3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 01/06/2021] [Indexed: 06/12/2023]
Abstract
Recently topological semimetals emerge as a new platform to realise topological superconductivity. Here we report the emergent superconductivity in single-crystals of Re doped type-II Weyl semimetal NiTe2. The magnetic and transport measurements highlight that Re substitution in Ni-site induces superconductivity at a maximum temperature of 2.36 K. Hall effect and specific heat measurements indicate that Re substitution is doping hole and facilitates the emergence of superconductivity by phonon softening and enhancing the electron-phonon coupling.
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Affiliation(s)
- Manasi Mandal
- Department of Physics, Indian Institute of Science Education and Research Bhopal, Bhopal, 462066, India
| | - R P Singh
- Department of Physics, Indian Institute of Science Education and Research Bhopal, Bhopal, 462066, India
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31
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Chakravarty N, Priyanka, Singh J, Singh RP. A potential type-II L-asparaginase from marine isolate Bacillus australimaris NJB19: Statistical optimization, in silico analysis and structural modeling. Int J Biol Macromol 2021; 174:527-539. [PMID: 33508362 DOI: 10.1016/j.ijbiomac.2021.01.130] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Revised: 01/04/2021] [Accepted: 01/19/2021] [Indexed: 02/06/2023]
Abstract
L-asparaginase is a cardinal biotherapeutic drug for treating acute lymphoblastic leukemia, which is highly prevalent in children worldwide. In the current investigation, L-asparaginase producing marine bacterial isolate, Bacillus australimaris NJB19 (MG734654), was observed to be producing extracellular glutaminase free L-asparaginase (13.27 ± 0.4 IU mL-1). Production of L-asparaginase was enhanced by the Box-Behnken design approach that enumerated the significant variables affecting the enzyme production. The optimum levels of the derived variables resulted in 2.8-fold higher levels of the enzyme production (37.93 ± 1.06 IU mL-1). An 1146 bp L-asparaginase biosynthetic gene of Bacillus australimaris NJB19 was identified and cloned in E. coli DH5α, fused with a histidine tag. The in silico analysis of the protein sequence revealed the presence of a signal peptide and classified it as a type II L-asparaginase. Toxic peptide prediction disclosed no toxin domain in the protein sequence, hence suggesting it as a non-toxic protein. The secondary structure analysis of the enzyme displayed a comparable percentage of alpha-helical and random coil structure, while 14.39% and 6.57% of amino acid residues were composed of extended strands and beta-turns, respectively. The functional sites in the three-dimensional structural model of the protein were predicted and interestingly had a few less conserved residues. Bacillus australimaris NJB19 identified in this study produces type-II L-asparaginase, known for its high affinity for asparagine and effectiveness against leukemic cells. Hence, these observations indicate the L-asparaginase, thus obtained, as a potentially significant and novel therapeutic drug.
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Affiliation(s)
- Namrata Chakravarty
- Department of Biotechnology, Indian Institute of Technology Roorkee, Roorkee 247667, India
| | - Priyanka
- Department of Chemical Engineering, Shiv Nadar University, NH-91, Tehsil Dadri Gautam Buddha Nagar, Uttar Pradesh 201314, India
| | - Jyoti Singh
- Department of Biotechnology, Indian Institute of Technology Roorkee, Roorkee 247667, India
| | - R P Singh
- Department of Biotechnology, Indian Institute of Technology Roorkee, Roorkee 247667, India.
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32
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Abstract
Selenium nanoparticles (SeNPs) have revolutionized biomedical domain and are still developing rapidly. Hence, this perspective elaborates SeNPs properties, synthesis, and biomedical applications, together with their potential for management of SARS-CoV-2.
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Affiliation(s)
- Vanya Nayak
- Department of Biotechnology
- Faculty of Science
- Indira Gandhi National Tribal University
- Amarkantak
- India
| | - Kshitij RB Singh
- Department of Chemistry
- Govt. V. Y. T. PG. Autonomous College
- Durg
- India
| | - Ajaya Kumar Singh
- Department of Chemistry
- Govt. V. Y. T. PG. Autonomous College
- Durg
- India
| | - Ravindra Pratap Singh
- Department of Biotechnology
- Faculty of Science
- Indira Gandhi National Tribal University
- Amarkantak
- India
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33
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Supekar BB, Rambhia KD, Tomar SS, Singh RP. Multiple Familial Trichoepithelioma with Varied Malignancies. Indian J Dermatol 2021; 66:226. [PMID: 34188306 PMCID: PMC8208248 DOI: 10.4103/ijd.ijd_647_18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Affiliation(s)
- Bhagyashree B Supekar
- Department of Dermatology, Venereology and Leprosy, Government Medical College, Nagpur, Maharashtra, India
| | - Kinjal D Rambhia
- Department of Dermatology, Venereology and Leprosy, HBTMC and Dr. R.N. Cooper Hospital, Mumbai, Maharashtra, India. E-mail:
| | - Suyash Singh Tomar
- Department of Dermatology, Venereology and Leprosy, Government Medical College, Nagpur, Maharashtra, India
| | - R P Singh
- Department of Dermatology, Venereology and Leprosy, Government Medical College, Nagpur, Maharashtra, India
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34
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Blackhall KK, Downie IP, Walsh S, Burhan R, Ramchandani P, Kusanale A, Srinivasan B, Brennan PA, Singh RP. Comparison of provision of maxillofacial emergency service during the two COVID-19 national lockdowns in the United Kingdom. Br J Oral Maxillofac Surg 2020; 59:716-719. [PMID: 33975765 PMCID: PMC7832651 DOI: 10.1016/j.bjoms.2020.12.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 12/19/2020] [Indexed: 11/16/2022]
Abstract
We previously published a study on the provision of emergency maxillofacial services during the first UK COVID-19 pandemic national lockdown. We repeated the study during the second lockdown and now present our findings that highlight the main differences and learning issues as the services have evolved.
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Affiliation(s)
- K K Blackhall
- Dept. Oral and Maxillofacial Surgery, Salisbury District Hospital, Salisbury, Wiltshire, SP2 8BJ
| | - I P Downie
- Dept. Oral and Maxillofacial Surgery, Salisbury District Hospital, Salisbury, Wiltshire, SP2 8BJ
| | - S Walsh
- Dept. Oral and Maxillofacial Surgery, St Richard's Hospital, Spitalfield Ln, Chichester, PO19 6SE
| | - R Burhan
- Dept. Oral and Maxillofacial Surgery, Southampton University Hospital, Tremona Rd, Southampton, SO16 6YD
| | - P Ramchandani
- Dept. Oral and Maxillofacial Surgery, Poole Hospital, Longfleet Rd, Poole, BH15 2JB
| | - A Kusanale
- Dept. Oral and Maxillofacial Surgery, Poole Hospital, Longfleet Rd, Poole, BH15 2JB
| | - B Srinivasan
- Dept. Oral and Maxillofacial Surgery, Queen Alexandra Hospital, Cosham, Portsmouth, PO6 3LY
| | - P A Brennan
- Dept. Oral and Maxillofacial Surgery, Queen Alexandra Hospital, Cosham, Portsmouth, PO6 3LY
| | - R P Singh
- Dept. Oral and Maxillofacial Surgery, Southampton University Hospital, Tremona Rd, Southampton, SO16 6YD.
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35
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Dubey S, Mishra R, Roy P, Singh RP. 3-D macro/microporous-nanofibrous bacterial cellulose scaffolds seeded with BMP-2 preconditioned mesenchymal stem cells exhibit remarkable potential for bone tissue engineering. Int J Biol Macromol 2020; 167:934-946. [PMID: 33189758 DOI: 10.1016/j.ijbiomac.2020.11.049] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Revised: 10/30/2020] [Accepted: 11/07/2020] [Indexed: 12/13/2022]
Abstract
Bone repair using BMP-2 is a promising therapeutic approach in clinical practices, however, high dosages required to be effective pose issues of cost and safety. The present study explores the potential of low dose BMP-2 treatment via tissue engineering approach, which amalgamates 3-D macro/microporous-nanofibrous bacterial cellulose (mNBC) scaffolds and low dose BMP-2 primed murine mesenchymal stem cells (C3H10T1/2 cells). Initial studies on cell-scaffold interaction using unprimed C3H10T1/2 cells confirmed that scaffolds provided a propitious environment for cell adhesion, growth, and infiltration, owing to its ECM-mimicking nano-micro-macro architecture. Osteogenic studies were conducted by preconditioning the cells with 50 ng/mL BMP-2 for 15 min, followed by culturing on mNBC scaffolds for up to three weeks. The results showed an early onset and significantly enhanced bone matrix secretion and maturation in the scaffolds seeded with BMP-2 primed cells compared to the unprimed ones. Moreover, mNBC scaffolds alone were able to facilitate the mineralization of cells to some extent. These findings suggest that, with the aid of 'osteoinduction' from low dose BMP-2 priming of stem cells and 'osteoconduction' from nano-macro/micro topography of mNBC scaffolds, a cost-effective bone tissue engineering strategy can be designed for quick and excellent in vivo osseointegration.
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Affiliation(s)
- Swati Dubey
- Microbial Biotechnology Laboratory, Department of Biotechnology, Indian Institute of Technology Roorkee, Roorkee 247667, India.
| | - Rutusmita Mishra
- Molecular Endocrinology Laboratory, Department of Biotechnology, Indian Institute of Technology Roorkee, Roorkee 247667, India
| | - Partha Roy
- Molecular Endocrinology Laboratory, Department of Biotechnology, Indian Institute of Technology Roorkee, Roorkee 247667, India
| | - R P Singh
- Microbial Biotechnology Laboratory, Department of Biotechnology, Indian Institute of Technology Roorkee, Roorkee 247667, India.
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Singh RP, De Britto L, Vijayalakshmi G. A study on “clinical epidemiology of filarial lymphedema patients attending filariasis clinic in Pondicherry”. Clinical Epidemiology and Global Health 2020. [DOI: 10.1016/j.cegh.2020.02.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Singh KRB, Sridevi P, Singh RP. Potential applications of peptide nucleic acid in biomedical domain. Eng Rep 2020; 2:e12238. [PMID: 32838227 PMCID: PMC7404446 DOI: 10.1002/eng2.12238] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 06/19/2020] [Accepted: 06/19/2020] [Indexed: 05/03/2023]
Abstract
Peptide Nucleic Acid (PNA) are DNA/RNA synthetic analogs with 2-([2-aminoethyl] amino) acetic acid backbone. They partake unique antisense and antigene properties, just due to its inhibitory effect on transcription and translation; they also undergo complementary binding to RNA/DNA with high affinity and specificity. Hence, to date, many methods utilizing PNA for diagnosis and treatment of various diseases namely cancer, AIDS, human papillomavirus, and so on, have been designed and developed. They are being used widely in polymerase chain reaction modulation/mutation, fluorescent in-situ hybridization, and in microarray as a probe; they are also utilized in many in-vitro and in-vivo assays and for developing micro and nano-sized biosensor/chip/array technologies. Earlier reviews, focused only on PNA properties, structure, and modifications related to diagnostics and therapeutics; our review emphasizes on PNA properties and synthesis along with its potential applications in diagnosis and therapeutics. Furthermore, prospects in biomedical applications of PNAs are being discussed in depth.
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Affiliation(s)
- Kshitij RB Singh
- Department of Biotechnology, Faculty of ScienceIndira Gandhi National Tribal UniversityAmarkantakMadhya Pradesh484887India
| | - Parikipandla Sridevi
- Department of Biotechnology, Faculty of ScienceIndira Gandhi National Tribal UniversityAmarkantakMadhya Pradesh484887India
| | - Ravindra Pratap Singh
- Department of Biotechnology, Faculty of ScienceIndira Gandhi National Tribal UniversityAmarkantakMadhya Pradesh484887India
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Kumar P, Soumyashree S, Rao Epuru N, Banerjee SB, Singh RP, Subramanian KP. Determination of Stark Shifts and Widths Using Time Resolved Laser-Induced Breakdown Spectroscopy (LIBS) Measurements. Appl Spectrosc 2020; 74:913-920. [PMID: 32602354 DOI: 10.1177/0003702819891172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Stark broadening parameters have been estimated for resonant lines of Al(I) using time resolved measurements. The relation between the various emission line characteristics at different phases of opacity have been utilized to obtain the value of plasma temperature and Stark width parameters from the experimental data. The observed value of the center line intensity and Lorentzian component of the line width are compared against a simulated value of these parameters for optically thin case. The plasma temperature and Stark broadening parameters are obtained for the best fit condition by matching the experimentally observed and the simulated values of intensity and line widths. The time resolved measurements result in much better estimates for Stark parameters by allowing multiple points for fitting keeping the number of variables limited. The Stark shift parameters are also obtained from the slope of the plot of observed central wavelength shifts versus observed electron number density which is measured as a function of time. Hence, a method utilizing multiple-time observation data to obtain the Stark broadening parameters for lines showing self-absorption has been demonstrated.
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Affiliation(s)
| | | | | | | | - R P Singh
- Physical Research Laboratory, Ahmedabad, India
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Blackhall KK, Downie IP, Ramchandani P, Kusanale A, Walsh S, Srinivasan B, Shields H, Brennan PA, Singh RP. Provision of Emergency Maxillofacial Service During the COVID-19 Pandemic : A Collaborative Five Centre UK Study. Br J Oral Maxillofac Surg 2020; 58:698-703. [PMID: 32482348 PMCID: PMC7247479 DOI: 10.1016/j.bjoms.2020.05.020] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Accepted: 05/15/2020] [Indexed: 12/13/2022]
Abstract
The global pandemic of Coronavirus disease (COVID-19) represents one of the greatest challenges to healthcare systems, and has forced medical specialties to rapidly adapt their approaches to patient care. Oral and Maxillofacial Surgery is considered particularly at risk of disease transmission due to aerosol generation during surgical interventions, patient proximity and operating environment. On day 2 (26th March, 2020) of when severe restrictions in population movement were instigated in the United Kingdom, we began a study to prospectively monitor the presentation and management of maxillofacial emergencies at five hospital trusts. Data was collected onto an online live database fed through a smartphone application. Of the total 529 patients over six weeks, 395 attended for face-to-face consultations and 134 patients received remote consultations via telephone or video link. There were 255 trauma related cases, 221 infection and 48 cases of postoperative complications. Most trauma cases were minor soft tissue injury related to slip, trip or fall at home. There were 44 cases of facial fractures with a tendency for conservative treatment. 19 cases were related to domestic violence or self-harm. Of the 216 dental related emergencies, 68% could have been managed in the primary care setting. A quarter of all emergency patients were satisfactorily managed by remote consultations. There was a significant change in the provision of emergency maxillofacial service during the pandemic lockdown. We discuss the study findings as well as the potential implications in relation to planning for possible further COVID- 19 spikes and future pandemics.
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Affiliation(s)
- K K Blackhall
- Dept. Oral and Maxillofacial Surgery, Salisbury District Hospital, Salisbury, Wiltshire, SP2 8BJ
| | - I P Downie
- Dept. Oral and Maxillofacial Surgery, Salisbury District Hospital, Salisbury, Wiltshire, SP2 8BJ
| | - P Ramchandani
- Dept. Oral and Maxillofacial Surgery, Poole Hospital, Longfleet Rd, Poole, BH15 2JB
| | - A Kusanale
- Dept. Oral and Maxillofacial Surgery, Poole Hospital, Longfleet Rd, Poole, BH15 2JB
| | - S Walsh
- Dept. Oral and Maxillofacial Surgery, St Richard's Hospital, Spitalfield Ln, Chichester, PO19 6SE
| | - B Srinivasan
- Dept. Oral and Maxillofacial Surgery, Queen Alexandra Hospital, Cosham, Portsmouth, PO6 3LY
| | - H Shields
- Dept. Oral and Maxillofacial Surgery, Southampton University Hospital, Tremona Rd, Southampton, SO16 6YD
| | - P A Brennan
- Dept. Oral and Maxillofacial Surgery, Queen Alexandra Hospital, Cosham, Portsmouth, PO6 3LY
| | - R P Singh
- Dept. Oral and Maxillofacial Surgery, Southampton University Hospital, Tremona Rd, Southampton, SO16 6YD.
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Bhat DS, Srivastava A, Ahmad N, Rai P, Singh RP, Srivastava R, ROY AK, Fatima J. P1342OUTCOME OF ELDERLY PATIENTS AFTER PREDIALYSIS VASCULAR ACCESS CREATION. Nephrol Dial Transplant 2020. [DOI: 10.1093/ndt/gfaa142.p1342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background and Aims
Guidelines to create vascular access for elderly patients is guided by a number of factors i.e. competing risk of death, high rate of arteriovenous fistula (AVF) maturation failure, and poor vascular access outcomes, influencing the outcomes in this population . Does early creation of AVF in elderly patients with advanced CKD influence dialysis outcomes needs evaluation.
Method
We conducted a retrospective study among elderly (> 65 years ) who chose to create a permanent vascular access before dialysis initiation were identified between Jan 2014-Jan 2017 in Tertiary care hospital, Lucknow and assessed in 43 elderly patients (aged ≥65 years) with CKD undergoing predialysis AVF .
Results
They were observed for the frequencies of dialysis initiation, death before dialysis initiation, and dialysis-free survival for 2 years after vascular access creation. 45.6 % were diabetic, 78.9% were hypertensive, and 14.2 % had peripheral vascular disease. In all, 67% of patients with predialysis AVF initiated dialysis within 1 years of access placement, but the overall risk of dialysis initiation was modified by patient age. Only one half of patients initiated dialysis with a functioning AVF, 47.9% of AVFs were created <90 days before dialysis initiation. The primary patency rates were 42.7% at one year and 37.8 % at 2 years. Catheter dependence at dialysis initiation was more common in patients receiving predialysis AVF. In conclusion, most elderly patients with advanced CKD who received predialysis vascular access creation initiated dialysis within 1 year. As a consequence of late predialysis placement or maturation failure, almost one half of patients receiving AVFs initiated dialysis with a catheter.
Conclusion
Insertion of an AVF closer to dialysis initiation may serve as a “catheter-sparing” approach and allow delay of permanent access placement in selected elderly patients with CKD.
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Affiliation(s)
- Dr Sanjay Bhat
- RML Institute of Medical Sciences, Surgery, Lucknow, India
| | | | - Nisar Ahmad
- Era Medical College, Surgery, Lucknow, India
| | - Priyanka Rai
- RML Institute of Medical Sciences, Surgery, Lucknow, India
| | - R P Singh
- RML Institute of Medical Sciences, Surgery, Lucknow, India
| | | | - A K ROY
- Era Medical College, Surgery, Lucknow, India
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Bhat DS, Srivastava A, Ahmad N, Rai P, Singh RP, Srivastava R, ROY AK, Fatima J. P1048EMPHYSEMATOUS PYELONEPHRITIS IN TYPE 2 DIABETES -CLINICAL PROFILE AND MANAGEMENT. Nephrol Dial Transplant 2020. [DOI: 10.1093/ndt/gfaa142.p1048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background and Aims
Emphysematous pyelonephritis (EPN) is a rare but life-threatening acute suppurative infection of the kidney.60-70% are associated with uncontrolled diabetes mellitus (DM) with or without obstructive uropathy and superimposed with infection caused by gas-forming organisms. Conventional treatment of EPN is parenteral antibiotics with percutaneous or open surgical drainage and/or nephrectomy. There is no current consensus on management of EPN as to whether present day antibiotics alone good enough or is surgical intervention necessary and if surgical intervention required when should one go for nephrectomy.
Method
A prospective observational study was conducted at Tertiary care hospital, Lucknow from 2015-2018 to look for clinical, microbial profile and treatment outcome of diabetic patients with emphysematous pyelonephritis.The clinical features and laboratory data at the initial presentation, management and outcomes were analyzed .Contrast enhanced computerized tomography (CECT) was performed in case of suspected renal abscess and nonrecovering pyelonephritis
Results
A total of 76 Diabetic patients diagnosed with pyelonephritis were identified, of which 15 patients were diagnosed with EPN (26.3%) Renal papillary necrosis and renal abscess was seen in 1 and 3 patients, respectively. The mean age of the patients was 58.4 ± 6.5 years (age range 22-79 years). Pyelonephritis was more common among males. Duration of symptoms prior to hospitalization ranged from 16.34 ± 7.32 (range 8-32) days. Renal dysfunction at presentation was seen in 15 (100%) patients. Bilateral involvement was seen in 5 (33.3%) patients. Fever was the most common presenting symptom followed by dysuria. Urine and blood cultures were positive in 13 (88.3%) and 3 (20 %) patients respectively. Gram-negative bacilli were the most frequent organisms isolated, Escherichia coli in 11 (73.3%), Klebsiella sp. in 1 (6.6%), Pseudomonas in 1 (6.6%), and 1 each with polymicrobial and fungal UTI respectively. The fungus included Candida albicans managed with fluconazole. Good, moderate, and poor glycemic control was seen in 13 (12.3%), 16 (15.2%) and 76 (72.3%), respectively.Of 15 EPN patients, 13 (86.6 %) survived and 2 (13.3%) expired. 2 of them underwent Nephrectomy both survived.All patients with Stage I, II and IIIa EPN (n = 12) were managed with antibiotics with or without PCD. In EPN Stage IIIb/IV (n = 3), all the 3 (20 %) patients were managed with antibiotics and PCD and later 2 (13.3%) needed nephrectomy.Of different variable only altered sensorium and shock at presentation were associated with poor outcome in EPN patients (P < 0.05)
Conclusion
EPN in diabetics needs good multidisciplinary approach with adequate antibiotics and surgical management as and well required for better patient outcomes.
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Affiliation(s)
- Dr Sanjay Bhat
- RML Institute of Medical Sciences, Surgery, Lucknow, India
| | | | - Nisar Ahmad
- Era Medical College, Surgery, Lucknow, India
| | - Priyanka Rai
- RML Institute of Medical Sciences, Surgery, Lucknow, India
| | - R P Singh
- RML Institute of Medical Sciences, Surgery, Lucknow, India
| | | | - A K ROY
- Era Medical College, Surgery, Lucknow, India
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Bekshaev A, Mikhaylovskaya L, Patil S, Kumar V, Singh RP. Optical-vortex diagnostics via Fraunhofer slit diffraction with controllable wavefront curvature. J Opt Soc Am A Opt Image Sci Vis 2020; 37:780-786. [PMID: 32400711 DOI: 10.1364/josaa.388926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Accepted: 03/23/2020] [Indexed: 06/11/2023]
Abstract
Far-field slit diffraction of circular optical-vortex (OV) beams is efficient for measurement of the topological charge (TC) magnitude but does not reveal its sign. We show that this is because in the common diffraction schemes the diffraction plane coincides with the incident OV waist plane. Based on the examples of Laguerre-Gaussian incident beams containing a spherical wavefront component, we demonstrate that the far-field diffracted beam profile possesses an asymmetry depending on the incident wavefront curvature and the TC sign. This finding enables simple and efficient ways for the simultaneous diagnostics of the TC magnitude and sign, which can be useful in many OV applications, including OV-assisted metrology and information processing.
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Gupta K, Singh RP, Pandey A, Pandey A. Correction: Photocatalytic antibacterial performance of TiO 2 and Ag-doped TiO 2 against S. aureus. P. aeruginosa and E. coli. Beilstein J Nanotechnol 2020; 11:547-549. [PMID: 32280578 PMCID: PMC7136558 DOI: 10.3762/bjnano.11.43] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Accepted: 03/23/2020] [Indexed: 06/11/2023]
Abstract
[This corrects the article DOI: 10.3762/bjnano.4.40.].
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Affiliation(s)
- Kiran Gupta
- Department of Chemistry, Motilal Nehru National Institute of Technology, Allahabad, Prayagraj, 211004, U.P., India
| | - R P Singh
- Nanotechnology & Molecular Biology Lab, Centre of Biotechnology, University of Allahabad, Allahabad, Prayagraj, 211002, U.P., India
| | - Ashutosh Pandey
- Department of Chemistry, Motilal Nehru National Institute of Technology, Allahabad, Prayagraj, 211004, U.P., India
| | - Anjana Pandey
- Nanotechnology & Molecular Biology Lab, Centre of Biotechnology, University of Allahabad, Allahabad, Prayagraj, 211002, U.P., India
- Department of Biotechnology, Motilal Nehru National Institute of Technology, Allahabad, Prayagraj, 211004, U.P., India
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Supekar B, Tomar S, Chopkar A, Mukhi J, Singh RP. Bardet–Biedl syndrome with café-au-lait macule: Association or coincidence? Indian Dermatol Online J 2020; 11:246-249. [PMID: 32477991 PMCID: PMC7247639 DOI: 10.4103/idoj.idoj_106_19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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45
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Singh D, Sajilesh KP, Marik S, Biswas PK, Hillier AD, Singh RP. Nodeless s-wave superconductivity in the [Formula: see text]-Mn structure type noncentrosymmetric superconductor TaOs: a [Formula: see text]SR study. J Phys Condens Matter 2020; 32:015602. [PMID: 31509816 DOI: 10.1088/1361-648x/ab43a4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Noncentrosymmetric superconductors can lead to a variety of exotic properties in the superconducting state such as line nodes, multigap behavior, and time-reversal symmetry breaking. In this paper, we report the properties of a new noncentrosymmetric superconductor TaOs, using muon spin relaxation and rotation measurements. It is shown using the zero-field muon experiment that TaOs preserve the time-reversal symmetry in the superconducting state. From the transverse field muon measurements, we extract the temperature dependence of [Formula: see text], which is proportional to the superfluid density. This data can be fit with a fully gapped s-wave model for [Formula: see text] = 2.01 [Formula: see text] 0.02. Furthermore, the value of magnetic penetration depth is found to be 5919 [Formula: see text] 45 [Formula: see text], which is consistent with the value obtained from the bulk measurements.
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Affiliation(s)
- D Singh
- Indian Institute of Science Education and Research Bhopal, Bhopal, 462066, India
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46
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Singh RP, Tewari S, Kapoor A, Goel PK, Garg N, Kumar S, Khanna R. P41 Correlation of doppler ultrasound assessment of carotid femoral pulse wave velocity with coronary artery disease. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehz872.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Funding Acknowledgements
self
Background
Arterial stiffness is an important cardiovascular risk factor. Carotid femoral pulse wave velocity (cfPWV) is simple noninvasive method to determine aortic stiffness. Arterial stiffness measures, cfPWV in particular, have been found to be correlate with stroke and peripheral artery disease. Usually SphygmoCor or Complior are used to calculate cfPWV. Doppler ultrasound can serve as an alternative to these methods.
Purpose
To assess cfPWV using doppler ultrasound and study its correlation with coronary artery disease and its severity.
Methods
cfPWV was assessed by ultrasound Doppler in patient aged 20-70 years undergoing coronary angiography. cfPWV was measured by sequential recordings of arterial pressure waveform at the carotid and femoral arteries with a Doppler ultrasound with ECG gating and calculated as the distance between the carotid and the femoral sampling site divided by the time interval.
Result
Of the 358 subjects studied, 243 had coronary artery disease(CAD) (>50% diameter stenosis) and were further divided into single, double or triple vessel disease groups. 115 patients had mild CAD (< 50% stenosis) or no CAD and served as controls. Baseline characteristics were similar except diabetes (more common in CAD group)(39.09% v/s 27.82%). cfPWV was found to increase with age in all groups. cfPWV was not significantly affected by sex, diabetes, dyslipidemia, BMI, smoking or hypothyroidism. Mean cfPWV was significantly higher in patients with CAD (8.99 v/s 6.51 m/s, p < 0.001) and hypertensives (8.71 v/s 7.83 m/s, p < 0.001). Patients with triple vessel disease(TVD) had significantly higher cfPWV (10.12 m/s) than those with double(DVD)(8.84 m/s) or single vessel disease(SVD)(8.28m/s)(p < 0.001). Multinomial logistic regression revealed an odds ratio of 2.00, 2.375 and 3.368 respectively for SVD, DVD and TVD groups in comparison to controls (p < 0.001). cfPWV value > 7.25 m/s predicted CAD with sensitivity 78.6 % and specificity 74.8% (AUC =0.848, P < 0.001).
Conclusion
Carotid femoral pulse wave velocity can be measured noninvasively by ultrasound Doppler. cfPWV increases with age and hypertension and has strong correlation with coronary artery disease and its severity. The cfPWV can be an independent risk factor and may be utilized for cardiovascular risk prediction.
Abstract P41 Figure. cfPWV in various subgroups.
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Affiliation(s)
- R P Singh
- sanjay gandhi postgraduate institute of medical sciences, Lucknow, India
| | - S Tewari
- sanjay gandhi postgraduate institute of medical sciences, Lucknow, India
| | - A Kapoor
- sanjay gandhi postgraduate institute of medical sciences, Lucknow, India
| | - P K Goel
- sanjay gandhi postgraduate institute of medical sciences, Lucknow, India
| | - N Garg
- sanjay gandhi postgraduate institute of medical sciences, Lucknow, India
| | - S Kumar
- sanjay gandhi postgraduate institute of medical sciences, Lucknow, India
| | - R Khanna
- sanjay gandhi postgraduate institute of medical sciences, Lucknow, India
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Singh KRB, Nayak V, Sarkar T, Singh RP. Cerium oxide nanoparticles: properties, biosynthesis and biomedical application. RSC Adv 2020; 10:27194-27214. [PMID: 35515804 PMCID: PMC9055511 DOI: 10.1039/d0ra04736h] [Citation(s) in RCA: 83] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 07/11/2020] [Indexed: 01/06/2023] Open
Abstract
Cerium oxide nanoparticles have revolutionized the biomedical field and is still in very fast pace of development. Hence, this work elaborates the physicochemical properties, biosynthesis, and biomedical applications of cerium oxide nanoparticles.
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Affiliation(s)
- Kshitij RB Singh
- Department of Biotechnology
- Faculty of Science
- Indira Gandhi National Tribal University
- Amarkantak
- India
| | - Vanya Nayak
- Department of Biotechnology
- Faculty of Science
- Indira Gandhi National Tribal University
- Amarkantak
- India
| | - Tanushri Sarkar
- Department of Biotechnology
- Faculty of Science
- Indira Gandhi National Tribal University
- Amarkantak
- India
| | - Ravindra Pratap Singh
- Department of Biotechnology
- Faculty of Science
- Indira Gandhi National Tribal University
- Amarkantak
- India
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48
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Lal N, Shajilal B, Anwar A, Perumangatt C, Singh RP. Observing sub-Poissonian statistics of twisted single photons using oscilloscope. Rev Sci Instrum 2019; 90:113104. [PMID: 31779388 DOI: 10.1063/1.5109544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Accepted: 11/03/2019] [Indexed: 06/10/2023]
Abstract
Heralded single photon sources (HSPSs) from spontaneous parametric down-conversion are widely used as single photon sources. We study the photon number statistics of an HSPS carrying orbital angular momentum in our laboratory and observe the sub-Poissonian statistics using only photodetectors and an oscilloscope.
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Affiliation(s)
- Nijil Lal
- Physical Research Laboratory, Ahmedabad 380009, India
| | - Biveen Shajilal
- Cochin University of Science and Technology, Kochi 682022, India
| | - Ali Anwar
- Physical Research Laboratory, Ahmedabad 380009, India
| | | | - R P Singh
- Physical Research Laboratory, Ahmedabad 380009, India
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49
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Sharma V, Samanta GK, Chaitanya Kumar S, Singh RP, Ebrahim-Zadeh M. Tunable ultraviolet vortex source based on a continuous-wave optical parametric oscillator. Opt Lett 2019; 44:4694-4697. [PMID: 31568419 DOI: 10.1364/ol.44.004694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Accepted: 08/23/2019] [Indexed: 06/10/2023]
Abstract
We report a continuous-wave (cw) optical parametric oscillator (OPO) generating optical vortices tunable in the ultraviolet (UV). Based on MgO:sPPLT as the nonlinear crystal, the singly resonant OPO is pumped by a cw vortex beam in the green, and deploying intracavity sum-frequency generation (SFG) between the undepleted pump and the Gaussian resonant signal in the crystal of BiB3O6, it can generate optical vortices of order, luv=1 and 2, tunable across 332-344 nm in the UV with a maximum power of 12 mW. Due to conservation of orbital angular momentum in the parametric process, the OPO also produces a non-resonant idler output beam in a vortex spatial profile of order li=1 and 2, identical to the pump vortex, with the signal beam in Gaussian distribution. The idler vortex is tunable across 1172-1338 nm with maximum output power of 1.3 W.
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50
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Yadav AK, Chaudhary D, Bhadouriya S, Chandrasekar S, Dhanesh VV, Rajak KK, Singh RP, Ramakrishnan MA, Singh RK, Muthuchelvan D. Expression and characterization of the non-structural protein V of small ruminant morbillivirus. Virusdisease 2019; 30:465-468. [PMID: 31803815 DOI: 10.1007/s13337-019-00539-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2019] [Accepted: 06/25/2019] [Indexed: 11/24/2022] Open
Abstract
Peste-des-petits ruminants is a transboundary viral disease of small ruminants caused by small ruminant morbillivirus (SRMV). In the present study, the full-length V gene of SRMV was constructed through site-directed mutagenesis from the P gene transcripts of the vaccine virus (Sungri/96 India) and expressed in a prokaryotic expression system. In animals, the seroconversion against this protein occurs from 14-days and is getting produced from 48 h in cell culture. An indirect ELISA developed using this protein has a relative sensitivity and relative specificity of 77.73% and 73.775%, respectively as compared to c-ELISA. In this ELISA, it was observed that most of the convalescent animals elicited higher level of antibodies than vaccinated animals.
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Affiliation(s)
- Ajay Kumar Yadav
- 1ICAR, Indian Veterinary Research Institute, Mukteswar, Uttarakhand 263 138 India
| | - Dheeraj Chaudhary
- 1ICAR, Indian Veterinary Research Institute, Mukteswar, Uttarakhand 263 138 India
| | - Sakshi Bhadouriya
- 1ICAR, Indian Veterinary Research Institute, Mukteswar, Uttarakhand 263 138 India
| | - S Chandrasekar
- 1ICAR, Indian Veterinary Research Institute, Mukteswar, Uttarakhand 263 138 India
| | - V V Dhanesh
- 1ICAR, Indian Veterinary Research Institute, Mukteswar, Uttarakhand 263 138 India
| | - Kaushal K Rajak
- 2ICAR, Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh 243 122 India
| | - R P Singh
- 2ICAR, Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh 243 122 India
| | - M A Ramakrishnan
- 1ICAR, Indian Veterinary Research Institute, Mukteswar, Uttarakhand 263 138 India
| | - R K Singh
- 2ICAR, Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh 243 122 India
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