http___www.irb.hr_Istrazivanja_Zavodi_Zavod-za-istrazivanje-mora-i-okolisa_Laboratorij-za-biogeokemiju-mora-i-atmosfere_1.xml
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Laboratory for marine and atmospheric biogeochemistry The mission and vision of Laboratory for marine and atmospheric biogeochemistry includes fundamental and applied interdisciplinary research in the marine and atmospheric sciences and the education of young scientists. The main focus of the LMAB is the research of organic matter, which is of great importance for biogeochemical carbon cycle and consequently on the climate change. Given that in the last two centuries the global carbon cycle is seriously violated by intensive human activities, thus merriting extensive research, and objectives of LMAB are to investigate: (i) reactions of phytoplankton, as the key factor in the trophic chain, to environmental stress (temperature, availability of nutrients, pollutants), (ii) cellular and extracellular organic matter (lipids, polysaccharides, proteins, marine gels), which is important for determining the origin and dynamics of the organic matter; define their organization and structure at the molecular scale as well as mechanical properties, (iii) surface properties of the cells on the nano and micrometer scale that are difficult to reach by other techniques and are crucial for understanding of interfacial process dynamics: biotic and abiotic, (iv) the availability of organic matter for metals and nanoparticles, (v) size distribution, properties and photochemical processing of atmospheric aerosol organic matter with the special emphasis on its nitro-aromatic constituents and interactions with the micro constituents, (vi) sources, trans(formation) and exchange processes of organic matter at the natural sea water-atmosphere boundary region through specific organic tracers such as nitro-aromatics, and their distribution within the water column. Blaženka Gašparović PhD Ivna Vrana Špoljarić Jelena Godrijan PhD Nadica Ivošević DeNardis Sanja Frka Milosavljević PhD Slađana Strmečki Kos PhD Tea Mišić Radić Algal cell biophysical properties as markers for environmental stress in aquatic systems Major challenges face the aquatic systems due to different human activities, which may cause substantial damage to the economy of the region (fisheries, tourism). Our common regional challenge is focused on analyzing pressure in aquatic environment and requires transnational action as recognized in EU Biodiversity Strategy 2020.more » Estimating the role of marine biogenic organosulfur compunds in the formation and properties of atmospheric organic aerosols Croatia-Slovenia cooperation in science and technology, 2016-2017, PI S. Frka Milosavljevićmore » FP7 Programme, Sensitive MeAsuRmenT, detection and identification of engineered NANO particles in complex matrices 2012-2016, PI (Croatia) D. Lyons, collaborator: T. Mišić Radićmore » HRZZ: Appearance and interaction of biologically important organic molecules and micronutrient metals in marine ecosystem under environmental stress HRZZ: New methodological approach in biogeochemical studies of trace metal speciation in coastal aquatic ecosystems HRZZ: Phytoplankton life strategies in the northern Adriatic Marie-Curie co-fund project: Chemical nature of size segregated water soluble organic aerosols and their nitro-aromatic constituents AFM service analysis - visualization and characterization of surfaces and surface processes on the nanoscale using atomic force microscopy (AFM)
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Laboratorij za biogeokemiju mora i atmosfere Misija i vizija Laboratorija za biogeokemiju mora i atmosfere uključuje temeljna i primjenjena interdisciplinarna istraživanja unutar znanosti o moru i o atmosferi te obrazovanje mladih znanstvenika. Voditelj laboratorija dr.sc. Blaženka Gašparović Glavni fokus Laboratorija za biogeokemiju mora i atmosfere je organska tvar koja je od važnosti za biogeokemijski ciklus ugljika a time i za klimatske promjene. S obzirom da je u zadnjih dva stoljeća ozbiljno narušen globalni ciklus ugljika intenzivnom ljudskom aktivnošću, cilj je istraživati: (i) reakcije fitoplanktona na okolišni stres (temperatura, dostupnost nutrijenta, zagađivala) kao ključne karike u trofičkom lancu, (ii) staničnu i vanstaničnu organsku tvar (lipidi, morski gelovi, polisaharidi, proteini) što je važno za određivanje porijekla i procesa organske tvari; definiranje njihove organizacije i strukture na molekularnoj skali, te mehaničkih svojstava (iii) površinska svojstva stanica na nano i mikrometarskoj skali koja su teško dostupna drugim tehnikama ali su presudna za razumjevanje dinamike međupovršinskih procesa: biotskih i abiotskih, (iv) raspoloživost organske tvari za metale i nanočestice, (v) veličinsku distribuciju, svojstva te fotokemijske procese organske tvari atmosferskih aerosola s naglaskom na nitro-aromatskim spojevima te njihove interakcije s okolišnim mikro konstituentima, (vi) porijeklo, (trans)formacije te procese izmjene organske tvari na granici faza morska voda/atmosfera putem specifičnih organskih spojeva kao što su nitro-aromatski spojevi, te distribuciju istih u vodenom stupcu. Blaženka Gašparović dr.sc. Jelena Godrijan dr.sc. Nadica Ivošević DeNardis Sanja Frka Milosavljević dr.sc. Slađana Strmečki Kos dr.sc. Tea Mišić Radić dr.sc. Algal cell biophysical properties as markers for environmental stress in aquatic systems Major challenges face the aquatic systems due to different human activities, which may cause substantial damage to the economy of the region (fisheries, tourism). Our common regional challenge is focused on analyzing pressure in aquatic environment and requires transnational action as recognized in EU Biodiversity Strategy 2020.više » Estimating the role of marine biogenic organosulfur compunds in the formation and properties of atmospheric organic aerosols Hrvatsko-Slovenska znanstveno tehnološka suradnja, 2016-2017, voditelj: S. Frka Milosavljevićviše » FP7 Programme, Sensitive MeAsuRmenT, detection and identification of engineered NANO particles in complex matrices Lyons, suradnik: T. Mišić Radićviše » HRZZ: New methodological approach in biogeochemical studies of trace metal speciation in coastal aquatic ecosystems HRZZ: Utjecaj okolišnog stresa na pojavnost i međudjelovanje biološki važnih organskih molekula i mikronutrijenata u morskom ekosustavu HRZZ: Životne strategije fitoplanktona u sjevernom Jadranu, Marie-Curie co-fund project: Chemical nature of size segregated water soluble organic aerosols and their nitro-aromatic constituents AFM usluge analize Vizualizacija i karakterizacija površina i površinskih procesa na nanoskali primjenom mikroskopije atomskih sila.više » TOC analizator Analizator za određivanje ukupnog, otopljenog i partikularnog organskog ugljika u prirodnim krutim i tekućim uzorcima.više »