DOCSLIB.ORG

An Overview of the Algae-Mediated Biosynthesis of Nanoparticles and Their Biomedical Applications

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
An Overview of the Algae-Mediated Biosynthesis of Nanoparticles and Their Biomedical Applications biomolecules Review An Overview of the Algae-Mediated Biosynthesis of Nanoparticles and Their Biomedical Applications 1, 1, 1, 2,3 Rimsha Chaudhary y, Khadija Nawaz y, Amna Komal Khan y, Christophe Hano , Bilal Haider Abbasi 3,4 and Sumaira Anjum 1,* 1 Department of Biotechnology, Kinnaird College for Women, Lahore 54000, Pakistan; [email protected] (R.C.); [email protected] (K.N.); [email protected] (A.K.K.) 2 Laboratoire de Biologie des Ligneux et des Grandes Cultures (LBLGC), INRAE USC1328, Université d’Orléans, 28000 Chartres, France; [email protected] 3 Le Studium—Institute for Advanced Studies, 1 Rue Dupanloup, 45000 Orléans, France; [email protected] 4 Department of Biotechnology, Quaid-i-Azam University, Islamabad 54000, Pakistan * Correspondence: [email protected]; Tel.: +92-300-6957038 These authors contribute equally. y Received: 19 September 2020; Accepted: 27 October 2020; Published: 30 October 2020 Abstract: Algae have long been exploited commercially and industrially as food, feed, additives, cosmetics, pharmaceuticals, and fertilizer, but now the trend is shifting towards the algae-mediated green synthesis of nanoparticles (NPs). This trend is increasing day by day, as algae are a rich source of secondary metabolites, easy to cultivate, have fast growth, and are scalable. In recent era, green synthesis of NPs has gained widespread attention as a safe, simple, sustainable, cost-effective, and eco-friendly protocol. The secondary metabolites from algae reduce, cap, and stabilize the metal precursors to form metal, metal oxide, or bimetallic NPs. The NPs synthesis could either be intracellular or extracellular depending on the location of NPs synthesis and reducing agents. Among the diverse range of algae, the most widely investigated algae for the biosynthesis of NPs documented are brown, red, blue-green, micro and macro green algae. Due to the biocompatibility, safety and unique physico-chemical properties of NPs, the algal biosynthesized NPs have also been studied for their biomedical applications, which include anti-bacterial, anti-fungal, anti-cancerous, anti-fouling, bioremediation, and biosensing activities. In this review, the rationale behind the algal-mediated biosynthesis of metallic, metallic oxide, and bimetallic NPs from various algae have been reviewed. Furthermore, an insight into the mechanism of biosynthesis of NPs from algae and their biomedical applications has been reviewed critically. Keywords: algae; green synthesis; nanoparticles; iomedical applications 1. Introduction The last few decades have witnessed accelerated development in the field of nanotechnology attributed to the exceptional physio-chemical properties of nanoparticles (NPs) and associated nanomaterials. Nanotechnology has infiltrated almost every discipline of science to create novel alternatives aimed at solving different research-related bottlenecks [1]. The origin of nanobiotechnology is the fabrication of nanoscale particles by virtue of biological moieties that can influence the physical characteristics of NPs [2]. Synthesis of NPs of diverse sizes and shapes has underpinned great interest due to their novel properties as compared to their bulk counterparts. Consistency in the chemical, biochemical, and physicochemical properties of materials varies immensely at the nanoscale mainly due to the high aspect ratio of surface area to volume [3,4]. This leads to considerable differences Biomolecules 2020, 10, 1498; doi:10.3390/biom10111498 www.mdpi.com/journal/biomolecules Biomolecules 2020, 10, 1498 2 of 36 Biomolecules 2020, 10, x FOR PEER REVIEW 2 of 37 in mechanical properties, melting point, optical absorption, thermal, electrical conductivity, biological, andelectrical catalytic conductivity, activities [ 5biological,]. NPs bridge and thecatalytic gap between activities bulk [5]. materialsNPs brid andge the atomic gap orbetween molecular bulk structures.materials NPsand atomic usually or ranging molecular in size structures. from 1 to NPs 100 nmusually and haveranging been in classifiedsize from on 1 to the 100 basis nm of and origin, have dimensions,been classified and on structural the basis configurations, of origin, dimensions, as shown and in Figure structural1[6]. configurations, as shown in Figure 1 [6]. FigureFigure 1. 1.NPs NPs (nanoparticles; (nanoparticles; usually usually ranging ranging in in size size from from 1 1 to to 100 100 nm) nm) classification classification on on the the basis basis of of origin,origin, dimensions, dimensions, and and structural structural configurations. configurations. DueDue to to unique unique morphological morphological (shape, (shape, size, size, and and charge charge distribution) distribution) and and physico-chemical physico-chemical propertiesproperties of of NPs, NPs, they they find find applications applications in in almost almost every every discipline discipline of of science, science, like like space, space, energy,energy, defense,defense, communication, communication, biomedicine, biomedicine, and and agriculture. agriculture. UseUse ofof NPs NPs in in disease disease diagnosis, diagnosis, imaging, imaging, treatment,treatment, drug drug delivery, delivery, tissue tissue engineering, engineering, and and cancer canc therapeuticser therapeutics is also is also increasing increasing tremendously tremendously [7]. However,[7]. However, application application of NPs of NPs in biological in biological entities, entities, especially especially humans, humans, is veryis very critical, critical, and and the the NPs NPs usedused in biomedicalin biomedical applications applications should should preferably preferably be from greenbe from sources green [8]. Takingsources into [8]. consideration Taking into variousconsideration factors, various such as factors, biocompatibility, such as biocompatibility, bioavailability, bioavailability, bio-distribution, bio-distribution, and most importantly and most biosafetyimportantly of NPs, biosafety the current of NPs, trend the ofcurrent synthesis trend of of NPs synthesis is moving of NPs towards is moving the safer towards side [ 9the]. safer side [9]. NPs are mostly synthesized by physical and chemical methods such laser ablation, mechanical milling,NPs electro are mostly explosion, synthesized and sol-gel, by butphysical they are and hazardous chemical for methods environmental such laser and ablation, human healthmechanical [10]. Themilling, trend electro to synthesize explosion, NPs and from sol-gel, alternative, but they environmentally are hazardous for safe, environmental cost-effective, and and human non-toxic health green[10]. The methods trend isto increasing synthesize[ NPs11]. from Organisms alternative, such asenvironmentally algae, fungi, bacteria, safe, cost-effective, and plants and allow non-toxic green synthesisgreen methods of NPs is that increasing are free [11]. from Organisms impurities such [12, 13as]. algae, These fungi, biological bacteria, systems and plants possess allow various green biologicalsynthesis entitiesof NPs whichthat are behave free from as both impurities reducing [12,13]. and cappingThese biological agents in systems NP generation, possess various either intracellularlybiological entities or extracellularly which behave [14 as]. both Proteins, reducing peptides, and capping and functional agents groupsin NP generation, (carbonyl, thiol,either hydroxyl,intracellularly and amine) or extracellularly present in biological [14]. Proteins, entities peptides, reduce precursor and functional salt into groups NPs called (carbonyl, reducing thiol, or stabilizinghydroxyl, agentsand amine) [15]. present They cap in andbiological stabilize entities NPs atreduce the same precursor time, hencesalt into this NPs type called of synthesis reducing is or relativelystabilizing simple, agents reproducible, [15]. They cap and and stable stabilize [9]. NPs at the same time, hence this type of synthesis is relatively simple, reproducible, and stable [9]. The biosynthesis of NPs can be controlled by various physical factors, such as pH, concentration of metal precursor and bio-extract, contact time of reaction mixture, exposure to any light source, and Biomolecules 2020, 10, x; doi: FOR PEER REVIEW www.mdpi.com/journal/biomolecules Biomolecules 2020, 10, x FOR PEER REVIEW 3 of 37 temperature. These factors control the nucleation, growth, aging, agglomeration, and stabilization of NPs, which in turn can alter the size, shape, and crystallinity of the synthesized NPs [16–19]. After synthesis of NPs, they are subjected to various microscopic and spectroscopic characterization techniquesBiomolecules 2020to ,find10, 1498 out their unique physico-chemical characteristics. Determination of the exact3 of 36 morphological (size, shape, and particle distribution) and physico-chemical properties of NPs is very criticalThe in their biosynthesis biomedical of NPs applications can be controlled [20]. The by most various commonly physical employed factors, such microscopic as pH, concentration techniques usedof metal to find precursor out the and size bio-extract, and morphological contact time pr ofoperties reaction of mixture, NPs include exposure transmission to any light electron source, microscopyand temperature. (TEM), These scanning factors electron control microscopy the nucleation, (SEM), growth, atomic aging, force agglomeration, microscopy (AFM), and stabilization and high- resolutionof NPs, which transmission in turn electron can alter microscopy the size, shape, (HR-TEM), and crystallinityand
Load more

Recommended publications
  • New Records of Benthic Brown Algae (Ochrophyta) from Hainan Island (1990 - 2016)
    Titlyanova TV et al. Ochrophyta from Hainan Data Paper New records of benthic brown algae (Ochrophyta) from Hainan Island (1990 - 2016) Tamara V. Titlyanova1, Eduard A. Titlyanov1, Li Xiubao2, Bangmei Xia3, Inka Bartsch4 1National Scientific Centre of Marine Biology, Far Eastern Branch of the Russian Academy of Sciences, Palchevskogo 17, Vladivostok, 690041, Russia; 2Key Laboratory of Tropical Marine Bio-Resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; 3Institute of Oceanology, Chinese Academy of Sciences, 7 Nanhai Road, 266071 Qingdao, PR China; 4Alfred-Wegener-Institute for Polar and Marine Research, Am Handelshafen 12, 27570 Bremerhaven, Germany Corresponding author: E Titlyanov, e-mail: [email protected] Abstract This study reports on the intertidal and shallow subtidal brown algal flora from Hainan Island in the South China Sea, based on extensive sample collection conducted in 1990, 1992 and 2008−2016. The analysis revealed 27 new records of brown algae for Hainan Island, including 5 species which also constitute new records for China. 21 of these species are de- scribed with photographs and an annotated list of all species with information on life forms, habitat (localities and tidal zones) and their geographical distribution is provided. Keywords: Hainan Island, new records, seaweeds, brown algae Introduction et al. 1994; Hodgson & Yau 1997; Tadashi et al. 2008). Overall, algal species richness also changed. Hainan Island is located on the subtropical northern Partial inventory of the benthic flora of Hainan has periphery of the Pacific Ocean in the South China Sea already been carried out (Titlyanov et al. 2011a, 2015, 2016; (18˚10′-20˚9′ N, 108˚37′-111˚1′ E).
    [Show full text]
  • Dictyotales, Phaeophyceae)1
    ƒ. Phycol. 46, 1301-1321 (2010) © 2010 Phycological Society of America DOI: 10.1 lll/j.1529-8817.2010.00908.x SPECIES DELIMITATION, TAXONOMY, AND BIOGEOGRAPHY OF D ICTYO TA IN EUROPE (DICTYOTALES, PHAEOPHYCEAE)1 Ana Tronholn? Departamento de Biología Vegetal (Botánica) , Universidad de La Laguna, 38271 La Laguna, Canary Islands, Spain Frederique Steen, Lennert Tyberghein, Frederik Leliaert, Heroen Verbruggen Phycology Research Group and Centre for Molecular Phylogenetics and Evolution, Ghent University, Rrijgslaan 281, Building S8, 9000 Ghent, Belgium M. Antonia Ribera Signan Unitat de Botánica, Facultat de Farmacia, Universität de Barcelona, Joan XXIII s/n, 08032 Barcelona, Spain and Olivier De Clerck Phycology Research Group and Centre for Molecular Phylogenetics and Evolution, Ghent University, Rrijgslaan 281, Building S8, 9000 Ghent, Belgium Taxonomy of the brown algal genus Dictyota has a supports the by-product hypothesis of reproductive long and troubled history. Our inability to distin­ isolation. guish morphological plasticity from fixed diagnostic Key index words: biogeography; Dictyota; Dictyotales; traits that separate the various species has severely diversity; molecular phylogenetics; taxonomy confounded species delineation. From continental Europe, more than 60 species and intraspecific taxa Abbreviations: AIC, Akaike information criterion; have been described over the last two centuries. Bí, Bayesian inference; BIC, Bayesian information Using a molecular approach, we addressed the criterion; GTR, general time reversible; ML, diversity of the genus in European waters and made maximum likelihood necessary taxonomic changes. A densely sampled DNA data set demonstrated the presence of six evo- lutionarily significant units (ESUs): Dictyota dichotoma Species of the genus Dictyota J. V. Lamour., along (Huds.) J. V.
    [Show full text]
  • Occasional Papers
    nuMBer 107, 80 pages 26 February 2010 Bishop MuseuM oCCAsioNAL pApeRs RecoRds of the hawaii Biological suRvey foR 2008 PaRt i: Plants Neal l. eveNhuis aNd lucius G. eldredGe, editors Bishop MuseuM press honolulu Cover illustration: Aira caryopylla l., silver hairgrass, a naturalized plant in pasture areas and lava flows on o‘ahu, Moloka‘i, Maui, and hawai‘i. From Wagner, W.l. et al. 1999. Manual of the flowering plants of Hawai‘i. rev. ed. univ. hawai‘i press & Bishop Museum press, honolulu. Bishop Museum press has been publishing scholarly books on the natu- researCh ral and cultural history of hawai‘i and the pacific since 1892. the Bernice p. Bishop Museum Bulletin series (issn 0005-9439) was begun puBliCations oF in 1922 as a series of monographs presenting the results of research in many scientific fields throughout the pacific. in 1987, the Bulletin series ishop useuM was superceded by the Museum’s five current monographic series, B M issued irregularly: Bishop Museum Bulletins in anthropology (issn 0893-3111) Bishop Museum Bulletins in Botany (issn 0893-3138) Bishop Museum Bulletins in entomology (issn 0893-3146) Bishop Museum Bulletins in Zoology (issn 0893-312X) Bishop Museum Bulletins in Cultural and environmental studies (issn 1548-9620) Bishop Museum press also publishes Bishop Museum Occasional Papers (issn 0893-1348), a series of short papers describing original research in the natural and cultural sciences. to subscribe to any of the above series, or to purchase individual publi- cations, please write to: Bishop Museum press, 1525 Bernice street, honolulu, hawai‘i 96817-2704, usa.
    [Show full text]
  • The Marine Macroalgae of Cabo Verde Archipelago: an Updated Checklist
    Arquipelago - Life and Marine Sciences ISSN: 0873-4704 The marine macroalgae of Cabo Verde archipelago: an updated checklist DANIELA GABRIEL AND SUZANNE FREDERICQ Gabriel, D. and S. Fredericq 2019. The marine macroalgae of Cabo Verde archipelago: an updated checklist. Arquipelago. Life and Marine Sciences 36: 39 - 60. An updated list of the names of the marine macroalgae of Cabo Verde, an archipelago of ten volcanic islands in the central Atlantic Ocean, is presented based on existing reports, and includes the addition of 36 species. The checklist comprises a total of 372 species names, of which 68 are brown algae (Ochrophyta), 238 are red algae (Rhodophyta) and 66 green algae (Chlorophyta). New distribution records reveal the existence of 10 putative endemic species for Cabo Verde islands, nine species that are geographically restricted to the Macaronesia, five species that are restricted to Cabo Verde islands and the nearby Tropical Western African coast, and five species known to occur only in the Maraconesian Islands and Tropical West Africa. Two species, previously considered invalid names, are here validly published as Colaconema naumannii comb. nov. and Sebdenia canariensis sp. nov. Key words: Cabo Verde islands, Macaronesia, Marine flora, Seaweeds, Tropical West Africa. Daniela Gabriel1 (e-mail: [email protected]) and S. Fredericq2, 1CIBIO - Research Centre in Biodiversity and Genetic Resources, 1InBIO - Research Network in Biodiversity and Evolutionary Biology, University of the Azores, Biology Department, 9501-801 Ponta Delgada, Azores, Portugal. 2Department of Biology, University of Louisiana at Lafayette, Lafayette, Louisiana 70504-3602, USA. INTRODUCTION Schmitt 1995), with the most recent checklist for the archipelago published in 2005 by The Republic of Cabo Verde is an archipelago Prud’homme van Reine et al.
    [Show full text]
  • Dictyotales, Phaeophyceae)1
    J. Phycol. 46, 1301–1321 (2010) Ó 2010 Phycological Society of America DOI: 10.1111/j.1529-8817.2010.00908.x SPECIES DELIMITATION, TAXONOMY, AND BIOGEOGRAPHY OF DICTYOTA IN EUROPE (DICTYOTALES, PHAEOPHYCEAE)1 Ana Tronholm2 Departamento de Biologı´a Vegetal (Bota´nica), Universidad de La Laguna, 38271 La Laguna, Canary Islands, Spain Frederique Steen, Lennert Tyberghein, Frederik Leliaert, Heroen Verbruggen Phycology Research Group and Centre for Molecular Phylogenetics and Evolution, Ghent University, Krijgslaan 281, Building S8, 9000 Ghent, Belgium M. Antonia Ribera Siguan Unitat de Bota`nica, Facultat de Farma`cia, Universitat de Barcelona, Joan XXIII s ⁄ n, 08032 Barcelona, Spain and Olivier De Clerck Phycology Research Group and Centre for Molecular Phylogenetics and Evolution, Ghent University, Krijgslaan 281, Building S8, 9000 Ghent, Belgium Taxonomy of the brown algal genus Dictyota has a supports the by-product hypothesis of reproductive long and troubled history. Our inability to distin- isolation. guish morphological plasticity from fixed diagnostic Keyindexwords:biogeography;Dictyota;Dictyotales; traits that separate the various species has severely diversity; molecular phylogenetics; taxonomy confounded species delineation. From continental Europe, more than 60 species and intraspecific taxa Abbreviations: AIC, Akaike information criterion; have been described over the last two centuries. BI, Bayesian inference; BIC, Bayesian information Using a molecular approach, we addressed the criterion; GTR, general time reversible; ML, diversity of the genus in European waters and made maximum likelihood necessary taxonomic changes. A densely sampled DNA data set demonstrated the presence of six evo- lutionarily significant units (ESUs): Dictyota dichotoma Species of the genus Dictyota J. V. Lamour., along (Huds.) J. V.
    [Show full text]
  • Algal Production of Nano-Silver and Gold: Their Antimicrobial and Cytotoxic Activities: a Review
    Journal of Genetic Engineering and Biotechnology (2016) xxx, xxx–xxx HOSTED BY Academy of Scientific Research & Technology and National Research Center, Egypt Journal of Genetic Engineering and Biotechnology www.elsevier.com/locate/jgeb Algal production of nano-silver and gold: Their antimicrobial and cytotoxic activities: A review Mostafa M. El-Sheekh a,*, Hala Y. El-Kassas b a Botany Department Faculty of Science, Tanta University, Egypt b National Institute of Oceanography and Fisheries, Marine Environmental Division, Hydrobiology Laboratory, Alexandria, Egypt Received 12 July 2016; revised 7 September 2016; accepted 20 September 2016 KEYWORDS Abstract The spreading of infectious diseases and the increase in incidence of drug resistance Algae; among pathogens have made the search for new antimicrobials inevitable, similarly is the cancer Antibacterial; disease. Nowadays, there is a growing need for biosynthesized nanoparticles (NPs) as they are Antifungal; one of the most promising and novel therapeutic agents of biological origin. The unique physico- Antiviral; chemical properties of the nano silver (Ag-NPs) as well as nano gold (Au-NPs) when combined with Gold-nanoparticles; the growth inhibitory capacity against microbes lead to an upsurge in the research on NPs and their Silver-nanoparticles potential application as antimicrobials. The phytochemicals of marine algae that include hydroxyl, carboxyl, and amino functional groups can serve as effective metal reducing agents and as capping agents to provide a robust coating on the metal NPs. The biosynthesis of Ag-NPs and Au-NPs using green resources is a simple, environmentally friendly, pollutant-free and low-cost approach. The biosynthesized NPs using algae exerted an outstanding antimicrobial and cytotoxic effect.
    [Show full text]
  • Compendium of Marine Species from New Caledonia
    fnstitut de recherche pour le developpement CENTRE DE NOUMEA DOCUMENTS SCIENTIFIQUES et TECHNIQUES Publication editee par: Centre IRD de Noumea Instltut de recherche BP A5, 98848 Noumea CEDEX pour le d'veloppement Nouvelle-Caledonie Telephone: (687) 26 10 00 Fax: (687) 26 43 26 L'IRD propose des programmes regroupes en 5 departements pluridisciplinaires: I DME Departement milieux et environnement 11 DRV Departement ressources vivantes III DSS Departement societes et sante IV DEV Departement expertise et valorisation V DSF Departement du soutien et de la formation des communautes scientifiques du Sud Modele de reference bibliographique it cette revue: Adjeroud M. et al., 2000. Premiers resultats concernant le benthos et les poissons au cours des missions TYPATOLL. Doe. Sei. Teeh.1I 3,125 p. ISSN 1297-9635 Numero 117 - Octobre 2006 ©IRD2006 Distribue pour le Pacifique par le Centre de Noumea. Premiere de couverture : Recifcorallien (Cote Quest, NC) © IRD/C.Oeoffray Vignettes: voir les planches photographiques Quatrieme de couverture . Platygyra sinensis © IRD/C GeoITray Matt~riel de plongee L'Aldric, moyen sous-marine naviguant de I'IRD © IRD/C.Geoffray © IRD/l.-M. Bore Recoltes et photographies Trailement des reeoHes sous-marines en en laboratoire seaphandre autonome © IRD/l.-L. Menou © IRDIL. Mallio CONCEPTIONIMAQUETIElMISE EN PAGE JEAN PIERRE MERMOUD MAQUETIE DE COUVERTURE CATHY GEOFFRAY/ MINA VILAYLECK I'LANCHES PHOTOGRAPHIQUES CATHY GEOFFRAY/JEAN-LoUIS MENOU/GEORGES BARGIBANT TRAlTEMENT DES PHOTOGRAPHIES NOEL GALAUD La traduction en anglais des textes d'introduction, des Ascidies et des Echinoderrnes a ete assuree par EMMA ROCHELLE-NEwALL, la preface par MINA VILAYLECK. Ce document a ete produit par le Service ISC, imprime par le Service de Reprographie du Centre IRD de Noumea et relie avec l'aimable autorisation de la CPS, finance par le Ministere de la Recherche et de la Technologie.
    [Show full text]
  • A Chronology of Middle Missouri Plains Village Sites
    Smithsonian Institution Scholarly Press smithsonian contributions to botany • number 106 Smithsonian Institution Scholarly Press ConspectusA Chronology of the Benthic of MiddleMarine AlgaeMissouri of the Plains Gulf of California:Village Rhodophyta, Sites Phaeophyceae, and ChlorophytaBy Craig M. Johnson with contributions by StanleyJames A. N. Ahler, Norris, Herbert Luis Haas, E. and Aguilar-Rosas, Georges Bonani and Francisco F. Pedroche SERIES PUBLICATIONS OF THE SMITHSONIAN INSTITUTION Emphasis upon publication as a means of “diffusing knowledge” was expressed by the first Secretary of the Smithsonian. In his formal plan for the Institution, Joseph Henry outlined a program that included the following statement: “It is proposed to publish a series of reports, giving an account of the new discoveries in science, and of the changes made from year to year in all branches of knowledge.” This theme of basic research has been adhered to through the years by thousands of titles issued in series publications under the Smithsonian imprint, commencing with Smithsonian Contributions to Knowledge in 1848 and continuing with the following active series: Smithsonian Contributions to Anthropology Smithsonian Contributions to Botany Smithsonian Contributions to History and Technology Smithsonian Contributions to the Marine Sciences Smithsonian Contributions to Museum Conservation Smithsonian Contributions to Paleobiology Smithsonian Contributions to Zoology In these series, the Smithsonian Institution Scholarly Press (SISP) publishes small papers and
    [Show full text]
  • Green Synthesis of Silver Nanoparticles Using Dictyota Bartayresiana J.V
    IBBJ Summer 2015, Vol 1, No 3 Original Article Green Synthesis of Silver Nanoparticles using Dictyota bartayresiana J.V. Lamouroux and their Cytotoxic Potentials Johnson Marimuthu Alias Antonysamy*, Shibila Thangiah, Revathy Irulappan Center for Plant Biotechnology, Department of Botany,St. Xavier’s College (Autonomous), Palayamkottai, Tamil Nadu, India. Submitted 07 Feb 2016; Accepted 27 Mar 2016; Published 27 Apr 2016 The present study was intended to standardize the protocol for the synthesis of silver nanoparticles (AgNPs) using aqueous extract of Dictyota bartayresiana J.V. Lamouroux and evaluate cytotoxic potentials using brine shrimp bio-assay activity and trypan blue dye exclusion method. The reduction of pure Ag+ ions was monitored by measuring the UV-Vis spectrum of the solution at 200-900 nm and the characteristic peaks were detected. FTIR analysis was used to detect the characteristic peaks and their functional groups. The powder method of diffraction was employed for structural characterisation of AgNPs . The cytotoxic and anticancer potentials were evaluated by, the brine shrimp bio-assay and trypan blue dye exclusion method against DLA cell lines, repectively . When the D. bartayresiana aqueous extract was mixed with 1 mM AgNO3 solution, the colour of the solution changed from pale yellow to yellowish brown colour. The AgNPs synthesized from aqueous extract of D. bartayresiana showed an absorption of 0.639 at 410 nm. The broadening of peaks indicated that the particles are polydispersed. The capping was confirmed by the existence of bands at 1019.19, 1642.09, 1643.05 and 3401.82 cm–1. The D. bartayresiana AgNPs illustrated nine peaks at 2θ values were 26.661°, 28.388°, 29.947°, 32.244°, 40.553°, Downloaded from ibbj.org at 23:05 +0330 on Friday September 24th 2021 46.223°, 50.19°, 54.78°, 57.448° and 76.67° corresponding to 208, 509, 149, 1681, 257, 833, 178, 275, 272 and 256 planes of silver, respectively.
    [Show full text]
  • Medicinal Prospective of Seaweed Resources in India: a Review
    Journal of Pharmacognosy and Phytochemistry 2020; 9(6): 1384-1390 E-ISSN: 2278-4136 P-ISSN: 2349-8234 www.phytojournal.com Medicinal prospective of seaweed resources in JPP 2020; 9(6): 1384-1390 Received: 18-09-2020 India: A review Accepted: 25-10-2020 Sudhir Kumar Yadav Sudhir Kumar Yadav Botanical Survey of India, Salt Lake City, Kolkata, West Bengal, India DOI: https://doi.org/10.22271/phyto.2020.v9.i6t.13143 Abstract The marine ecosystems are the integral part of biodiversity and support the wide range of marine phytodiversity, consisting of marine algae, seagrasses and mangroves. The marine macro algae are popularly known as ‘seaweeds’. Presently, c.11,000 taxa of seaweeds are reported globally and c. 221 taxa have been recognized as economically important in various forms like food, fodder and in various biochemical and pharmaceutical industries. Seaweeds contain many bioactive compounds such as proteins, peptides, fatty acids, antioxidants, vitamins, minerals, Caulerpenyne, Sulfated polysachharides, domoic acid, kainik acid etc. which have high therapeutic potential in various forms, such as antimicrobial, antiviral, anticancerous, anticoagulants, anti-inflammatory etc. The present paper deals with the medicinal potentiality of 39 taxa of seaweeds, belonging to 20 taxa of Chlorophyceae, 4 taxa of Phaeophyceae and 15 taxa of Rhodophyceae. Keywords: bioactive compounds, chlorophyceae, medicinal, phaeophycea, rhodophyceae Introduction Algae constitute an important component of the marine floral diversity and play a very crucial role in the aquatic food chains as primary producer. Seaweeds are the marine macro algae and exclusively found growing in the marine ecosystems on rocks, coralline beds, reefs, pebbles, shells, dead corals and also as epiphytes on other plants like seagrasses in the intertidal shallow sub-tidal and deep sea areas.
    [Show full text]
  • A Preliminary Annotated Checklist of the Marine Algae and Seagrasses of the Wallis Islands (French Overseas Territory of Wallis and Futuna), South Pacific
    CORE Metadata, citation and similar papers at core.ac.uk Provided by University of the South Pacific Electronic Research Repository CSIRO PUBLISHING www.publish.csiro.au/journals/asb Australian Systematic Botany 17, 367–397 A preliminary annotated checklist of the marine algae and seagrasses of the Wallis Islands (French Overseas Territory of Wallis and Futuna), South Pacific Antoine D. R. N’YeurtA,C and Claude E. PayriB ALaboratoire Terre-Ocean, Université de la Polynesié Française, BP 6570 Faa’a 98702, Tahiti, French Polynesia. BUMR 7138, Systématique, Adaptation, Evolution, Equipe Biodiversité Marine Tropicale, IRD-Nouméa – BPA5, 98848 Nouméa cedex, New Caledonia. CCorresponding author; email: [email protected] Abstract. A total of 194 species of marine algae (14 Cyanobacteria, 41 Chlorophyta, 11 Heterokontophyta and 128 Rhodophyta), as well as three species of seagrasses, represent the first published records for the isolated island of Wallis, South Pacific. The flora has its strongest affinities with Fiji and Rotuma, followed by Samoa and French Polynesia. The lack of diverse habitats and its geographical location are invoked to explain the relatively low species richness compared with localities such as Fiji and Samoa. The flora has a typically tropical component dominated by encrusting coralline red algae, the calcified green algal genera Halimeda, and assemblages of Cyanobacteria. Normally ubiquitous species such as Halimeda discoidea, and the brown algal genera Hydroclathrus, Colpomenia, Rosenvingea, Asteronema, and Chnoospora are notably absent from the island, perhaps due to seasonality and the lack of suitable habitats. The minute epiphytic red alga Acrochaetium kurogii is reported for the first time outside of its type locality in Japan, while two as yet unidentified species of red algae (Gracilaria sp.
    [Show full text]
  • Two New Species of the Genus Dictyota (Phaeophyceae: Dictyotales) from the Mexican Caribbean
    American Journal of Plant Sciences, 2015, 6, 2492-2501 Published Online September 2015 in SciRes. http://www.scirp.org/journal/ajps http://dx.doi.org/10.4236/ajps.2015.615251 Two New Species of the Genus Dictyota (Phaeophyceae: Dictyotales) from the Mexican Caribbean Jorge G. Lozano-Orozco1,2, Abel Sentíes2*, Olivier De Clerck3, Kurt M. Dreckmann2, Jhoana Díaz-Larrea2 1Doctorado en Ciencias Biológicas y de la Salud, Universidad Autónoma Metropolitana, Iztapalapa, México 2Departamento de Hidrobiología, Universidad Autónoma Metropolitana, Iztapalapa, México 3Phycology Research Group and Centre for Molecular Phylogenetics and Evolution, Ghent University, Ghent, Belgium Email: *[email protected] Received 28 July 2015; accepted 27 September 2015; published 30 September 2015 Copyright © 2015 by authors and Scientific Research Publishing Inc. This work is licensed under the Creative Commons Attribution International License (CC BY). http://creativecommons.org/licenses/by/4.0/ Abstract During a molecular characterization of the genus Dictyota J. V. Lamouroux (Phaeophyceae, Dic- tyotales) along the Mexican coasts of the Gulf of Mexico and the Mexican Caribbean, using psbA and cox1 genes, it was found that two particular collections did not match with the sequences pub- lished for a total of 39 species of Dictyota. For each gene, both collections diverged in high-uncor- rected “p” distance values with respect to other related species. This high genetic divergence was corroborated by morphological analysis. Hence, we proposed Dictyota mayae J. Lozano-Orozco & Sentíes and Dictyota pedrochei J. Lozano-Orozco & Sentíes as new species. Keywords Mexican Caribbean, Dictyota mayae sp. nov., Dictyota pedrochei sp. nov., Molecular Phylogeny, Taxonomy 1. Introduction Floristic identification of species belong to the genus Dictyota J.
    [Show full text]