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Search results for: concentration
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Determination of sex hormone concentration in wastewater samples.
Open Research DataConcentration levels of five selected steroid hormones in influent and effluent waters from wastewater treatment plant were determined using SPE(C18)-HPLC-ESI/MS/MS method. Sex hormones like: estradiol, estriol, estrone, 17-α-ethynyloestradiol, progesterone were present in all influent wastwater samples.
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The effect of chitosan concentration and molecular weight on endotoxin content
Open Research DataThe dataset includes results to determine the effect of chitosan concentration and molecular weight on endotoxin content as well as the effect of purification methods. The endotoxin concentration was determined using the PyroGene Recombinant Factor C Endpoint Fluorescent Assay. Chitosan 0.6% in 0.1M glycolic acid from Chemat LMW, MMW, and HMW were used...
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Monthly mean concentration of chlorophyll a on the sea surface of the Baltic Sea
Open Research DataMonthly mean surface concentration of chlorophyll a in the years 2003-2022 calculated on the basis of data from the SatBaltic System (https://satbaltyk.iopan.gda.pl/). Maps of monthly average values with a resolution of 1 km were derived from daily satellite data from the Moderate Resolution Imaging Spectroradiometer (MODIS). Gaps in satellite images...
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The effect of changes in the concentration of hydroxypropylcellulose on the rheological stability of pectin hydrogels.
Open Research DataThe rheological characteristics of the pectin hydrogel modified by hydroxypropylcellulose (added in a concetration range from 0.1 to 0.55% m/m) were made on the basis of the viscosity assessment using a Brookfield viscometer with an LV SC4 - 25 spindle and a shear rate of 0,22 s-1 in the temperature range 19-96 ° C.The data allowed selection of optimal...
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Determination of the effective concentration of ketoprofen against the germination of Sorghum bicolor (sorghum) seeds
Open Research DataResearch data includes an attempt to determine the effective concentration of ketoprofen that inhibits germination of Sorghum bicolor (sorghum) seeds.
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Determination of the effective concentration of oxyteracycline solutions on the inhibition of bioluminescence of Vibrio fischeri (Microtox)
Open Research DataIn this study an attempt was made to determine the effective concentration for oxytetracycline solutions on the inhibition of bioluminescence of Vibrio fischeri (Microtox).
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Change of exhaust gases concentration for SOFC fueled by H2 and biogas mixture at 750 C
Open Research DataThe dataset contains the Change of exhaust gases concentration for SOFC fueled by H2 (for 12h) and biogas mixture at 750 C (60:40 CH4:CO2). The outlet concentration of the gases from SOFC were measured using novel FTIR-based unit.
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The effect of zinc oxide concentration on dry matter content of chitosan gels in carbonic acid.
Open Research DataThe dataset contains results determining the effect of zinc oxide addition at different concentrations on the dry matter content of chitosan gels in carbonic acid after a specified time. Zinc oxide at concentrations of 0.5 and 1% was added as a powder to a 1% solution of chitosan in carbonic acid and then homogenized. Differences were observed in the...
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Change of exhaust gases concentration for LSCNT modified SOFC fueled by biogas mixture at 750 C
Open Research DataThe dataset changes of exhaust gases concentrations (CH4,CO,CO2,H2) over working time for SOFC with La0.27Sr0.54Ce0.09Ni0.1Ti0.9O3-s layer. Concentrations were calculated based on the FTIR measurements and calibration files presented in coupled dataset.
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Determination of the minimum inhibitory concentration of C-1305 derivatives (IKE1-IKE8) against Candida strains
Open Research DataThe datasets contain the results of determining the minimum inhibitory concentration of acridone derivatives against C. albicans ATCC 10231, C. glabrata ATCC 90030, C. krusei ATCC 6258 and C. parapsilosis ATCC 22019 by the modified M27-A3 specified by the CLSI.
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Determination of the minimum inhibitory concentration of C-1330 derivatives (IKE9-IKE14) against Candida strains
Open Research DataThe datasets contain the results of determining the minimum inhibitory concentration of C-1330 derivatives (IKE9-IKE14) against C. albicans ATCC 10231, C. glabrata ATCC 90030, C. krusei ATCC 6258 and C. parapsilosis ATCC 22019 by the modified M27-A3 specified by the CLSI.
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Determination of the minimum inhibitory concentration of new bisacridines IKE15-19 and IKE21, against yeast strains
Open Research DataThe datasets contain the results of determining the minimum inhibitory concentration of new bisacridines against C. albicans ATCC 10231, C. glabrata ATCC 90030, C. krusei ATCC 6258 and C. parapsilosis ATCC 22019, S. cerevisiae ATCC 9763 and fluconazole resistant C. albicans strains by the modified M27-A3 specified by the CLSI.
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Change of exhaust gases concentration for reference SOFC and SOFC with LSCNT layer fueled by biogas mixture at 750 C
Open Research DataThe dataset changes of exhaust gases concentrations (CH4,CO,CO2,H2) over working time for SOFC with La0.27Sr0.54Ce0.09Ni0.1Ti0.9O3-s layer as well as reference SOFEC (unmodified). Concentrations were calculated based on the FTIR measurements and calibration curves presented in different dataset. Longterm measurements of SOFC were performed using in-house...
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Determination of the MIC (minimum inhibitory concentration) of new bisacridines IKE16-19, IKE21 and IE10 against C. glabrata clinical strains
Open Research DataThe datasets contain the results of determining the MIC value (minimum inhibitory concentration) of new bisacridines IKE16-19, IKE21 and IE10 against Candida glabrata clinical strains CZD 310, 373, 377, 513 and collection strain DSM 11226 by the modified M27-A3 specified by the CLSI.
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Determination of the minimum inhibitory concentration of C-1311 derivatives (C-1296, C-1410, Compound 1, Compound 1-R8) against Candida strains
Open Research DataThe datasets contain the results of determining the minimum inhibitory concentration of imidazoacridinone derivatives against C. albicans ATCC 10231, C. glabrata ATCC 90030, C. krusei ATCC 6258 and C. parapsilosis ATCC 22019 and C. albicans clinical strains by the modified M27-A3 specified by the CLSI.
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Acid site concentrations of the MXenes samples
Open Research DataData contains the pH of 0.01M NaOH solution, before and after mixing with the MXenes samples.
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The changes of outlet gases concentrations from SOFC with Ce(Pr,Sm)O2-s layers
Open Research DataThe dataset includes The changes of outlet gases concentrations from SOFC with Ce(Pr,Sm)O2-s layers. Samples were produced using aqueous soft chemistry methods (microemulsion method) and applied in form of a layer onto the anode of the commercial SOFC. The SOFC was working under biogas feeding.
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Spectroscopy properties of 1,8-diazafluoren-9-one (DFO) in PVA polymer for different concentrations
Open Research DataSpectroscopy properties: absorption and fluorescence spectra of 1,8-diazafluoren-9-one (DFO) in PVA film for different concentrations of dye.
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Absorption and fluorescence spectra of 1,8-diazafluoren-9-one (DFO) in PVA polymer for different concentrations
Open Research DataAbsorption and fluorescence spectra of 1,8-diazafluoren-9-one (DFO) in PVA film for different concentrations of dye.
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The electrochemical studies of CB-PLA electrode after surface activation by proteinase K digestion with different times and concentrations
Open Research DataThe dataset contains the electrochemical studies performed to evaluate surface activation of the CB-PLA 3D printed electrodes by enzymatic hydrolysis in a solution containing proteinase K. DIfferent proteinase K concentrations and digestion times were evaluated, as described in subfolder names. The studies were performed before surface activation, during...
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The PolarScreen™ Estrogen Receptor Competitor Assays for determination of estradiol equivalent concentrations (EEQs) in sewage and drinking water samples.
Open Research DataMunicipal waste waters are one of the main sources of estrogenic compounds in aquatic environments. Feminization of fish downstream of Waste Water Treatment Plants (WWTPs) discharges has been observed worldwide. Some estrogenic chemicals, particularly steroid estrogens, are known to cause disruption of the endocrine system of fishes and abnormalities...
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The results of measuring concentrations of heavy metals, petroleum hydrocarbons and humic acids in watercourses around the municipality of Gdańsk in 2005
Open Research DataThe dataset contains the results of a measurement of concentrations of heavy metals (cadmium, lead and mercury), petroleum hydrocarbons and humic acids in watercourses around the municipality of Gdańsk in 2005. The data was collected from January to December, once a month at 23 measuring stations located at 15 watercourses.
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Organochlorine pesticides and polichlorinated biphenyls concentrations in fresh snowfall or top layer of snow from Hornsund region, Svalbard, in the spring 2019
Open Research DataThe dataset contains concentration of organochlorine persistent organic pollutants in snow samples collected from top layer of snow, which corresponded to fresh snowfall in most cases (except DS location, where these are 20 cm top layer sampled weekly). All snow samples have been collected within one month during spring 2019, in the vicinity of the...
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Minimum inhibitory concentrations (MICs) determination of selected human topoisomerase II alpha and bacterial DNA gyrase inhibitors against fungal strains
Open Research DataThe datasets contain the results of determining the MIC (Minimal Inhibitory Concentration) value of known compounds* (inhibitors of human topoisomerase II alpha and bacterial DNA gyrase) against C. albicans SC5314, C. glabrata ATCC 90030, C. krusei ATCC 6258 and C. parapsilosis ATCC 22019 and Saccharomyces cerevisiae ATCC 9763 by the modified M27-A3...
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The biotic and abiotic mercury at the coastal zone of Gulf of Gdańsk
Open Research DataConcentration of neurotoxin Hg (mercury) was determined monthly form 01.2012 to 05.2013 (total and suspended) in the surface microlayer and the surface water as well as in: phytoplankton, zooplankton, epilithon, epifithon, phytobenthos (macroalgae and angiosperms), zoobenthos, and in the sediment. The study was conducted in the coastal zone of the Puck...
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Change of catalytic parameters for SOFC fueled by H2 and biogas mixture at 750 C
Open Research DataThe dataset contains the Change of catalytic parameters for SOFC fueled by H2 and biogas mixture at 750 C (60:40 CH4:CO2). The outlet concentration of the gases from SOFC were measured using novel FTIR-based unit. The parameters are conversion rates, selectivities and yields of products
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The absorption and fluorescence spectra of C-1305 derivatives (IKE1-IKE8), potential antifungal agents
Open Research DataOptical measurements of C-1305 derivatives (IKE1-IKE8). The absorption spectra were recorded at 300 - 800 nm for solutions with 16 μg / mL derivative concentration. The fluorescence emission spectra were determined at 420-800 nm with the excitation wavelengths 360 or 415 nm for solutions with 1 μg / mL derivative concentration. All measurements were...
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Impact of binary mixtures of ketoprofen and chloramphenicol on the germination of Sorghum bicolor (sorgo) seeds
Open Research DataResearch was carried out for various ratios of the previously determined EC50 values for mixture of ketoprofen and chloramphenicol, the first substance at 100% of its EC50 concentration was mixed with the second substance at 100% of its EC50 concentration, or the first substance at 50% of its EC50 concentration was mixed with the second substance at...
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Impact of binary mixtures of ketoprofen and diclofenac on the germination of Sorghum bicolor (sorgo) seeds
Open Research DataResearch was carried out for various ratios of the previously determined EC50 values for mixture of ketoprofen and diclofenac, the first substance at 100% of its EC50 concentration was mixed with the second substance at 100% of its EC50 concentration, or the first substance at 50% of its EC50 concentration was mixed with the second substance at 150%...
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Impact of binary mixtures of ketoprofen and oxytetracycline on the germination of Sorghum bicolor (sorgo) seeds
Open Research DataResearch was carried out for various ratios of the previously determined EC50 values for mixture of ketoprofen and oxytetracycline the first substance at 100% of its EC50 concentration was mixed with the second substance at 100% of its EC50 concentration, or the first substance at 50% of its EC50 concentration was mixed with the second substance at...
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Influence of the presence of rhamnolipids and ionic cross-linking conditions on the mechanical properties of alginate hydrogels.
Open Research DataThe dataset contains the results of determination the effect of rhamnolipids concentration, calcium chloride concentration and ionic cross-linking time on the mechanical properties of alginate hydrogels prepared by immersing the alginate mixture limited by the dialysis membrane in an appropriate cross-linking solution containing calcium ions. The mechanical...
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Cyanobacterial occurence in the Gulf of Gdańsk (2008-2009)
Open Research DataEN: This dataset includes information about cyanobacterial occurrence in the Gulf of Gdansk (Southern Baltic) in 2008 and 2009. The presented data concern the basic physicochemical and biological parameters of the sampled waters (temperature, PSU, Chla), occurrence of diazotrophic cyanobacterial species from Nodularia, Aphanizomenon and Dolichospermum...
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Cyanobacterial occurence in the Kociewskie lakes (2004)
Open Research DataThis dataset includes information about the cyanobacterial occurrence in 3 lakes in the region Kociewie (northern Poland), in 2004. Presented data concern basic physicochemical and biological parameters of sampled waters (temperature, pH, Chl a), the occurence of potentially toxic cyanobacterial species, and the type and concentration of toxins (microcystin)...
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Gold nanocubic structures agglomeration when put on conductive surfaces
Open Research DataThis dataset contains SEM images of gold nanocubes (AuNC), which were deposited at the conductive Si wafer surface and dried. The deposition method, the solvent used and AuNC concentration have a significant influence on the homogeneous distribution and their agglomeration at the surface, further influencing the electrochemical characteristics of the...
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Analysis of cell cycle distribution
Open Research DataThe dataset comprehensively details the distribution of A549, H226, and H460 cell lines in various cell cycle phases following treatment with the IC90 concentration of selected anthraquinones. The analysis was performed using the Flowing Software 2.
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Experimental dataset on detection of SARS-CoV-2 specific IgG antibodies by the fiber optic microsphere-based sensor
Open Research DataThe presented dataset is related to experimental detection of the ARS-CoV-2 specific IgG antibodies by the fibre optic microsphere-based sensor. To perform measurement we used a dedicated microsphere-based probe whose surface was immobilized.
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The effect of raw material type on endotoxin content .
Open Research DataThe datasets contain the results of determining the effect of raw material type on endotoxin content as well as the effect of purification methods. The endotoxin concentration was determined using the PyroGene Recombinant Factor C Endpoint Fluorescent Assay. Beckmann-Kenko sodium alginate and Chemat sodium salt of alginic acid were used for the assays....
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Gold nanocubic structures agglomeration when put on conductive surfaces
Open Research DataThis dataset contains SEM images of gold nanocubes (AuNC), which were deposited at the conductive Si wafer surface and dried. The deposition method, the solvent used and AuNC concentration have a significant influence on the homogeneous distribution and their agglomeration at the surface, further influencing the electrochemical characteristics of the...
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Sulfammox process_task 1
Open Research DataAnaerobic ammonia-oxidizing bacteria have a more comprehensive metabolism thanexpected - there may be other electron acceptors that oxidize ammonium nitrogen under anaerobicconditions, in addition to the well-known nitrite nitrogen, one of which is sulfate in the sulfammoxprocess. Sulfate-containing compounds are part of the medium for the anammox process,...
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Measurements of absorption and emission spectra of tryptophan in solutions of different pH
Open Research DataInvestigations of the absorption and fluorescence spectra of tryptophan in different environments were carried out, controlling the pH of the environment and the concentration of tryptophan.
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Kinetics of cyclohexane removal by Candida subhashii and Fusarium solani
Open Research DataDataset presents cyclohexane biodegradation in gas phase using two species of microorganisms: Candida Subhashii and Fusarium solani. Biodegradation was carried out in sealed chambers with a capacity of 1000 ml. In each of them there are two discs inhabited with microorganisms, made of polyurethane foam, 80 mm in diameter and 20 mm thick.
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Nutrients, oxygen and suspended matter - Gdansk Deep (2001-2005)
Open Research DataThe results show short-term changes in the concentration of nutrients (nitrates, nitrites, ammonium ions, phosphates and total forms of nitrogen and phosphorus), dissolved oxygen and suspended particulate matter - SPM and its main components (organic carbon - POC, nitrogen - PON, phosphorus - TPP) in the water column of the Gdańsk Deep (Gdańsk Bay).
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Methane (CH4) calibration set of FTIR spectra
Open Research DataThe calibration spectra for CH4 concentration calibration were supplied with this dataset
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Carbon (II) oxide (CO) calibration set of FTIR spectra
Open Research DataThe calibration spectra for CO concentration calibration were supplied with this dataset
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Carbon dioxide (CO2) calibration set of FTIR spectra
Open Research DataThe calibration spectra for CO2 concentration calibration were supplied with this dataset
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Gold nanocubic structures agglomeration when put on conductive surfaces
Open Research DataThis dataset contains SEM images of gold nanocubes (AuNC), which were deposited at the conductive Si wafer surface and dried. The deposition method, the solvent used and AuNC concentration have a significant influence on the homogeneous distribution and their agglomeration at the surface, further influencing the electrochemical characteristics of the...
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Wyniki sulfammox (SRAO)
Open Research DataTwo granular sequencing batch reactors were operated for 160 days under anammox conditions, comparing the Anammox process and Sulfate Reduction Ammonium Oxidation process. The study aimed to investigate whether increasing the concentration of SO42- could enhance N removal rates under anaerobic conditions, and whether SO42- reduction and anammox processes...
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TiO2-TG analyses -OH groups
Open Research DataTG analyses of TiO2 were performed under nitrogen flow to monitor desorption of hydroxyl groups. Physisorbed weak-bonded hydroxyl groups were desorbed totally at around 120oC, whereas chemisorbed ones at around 500oC. The mass loss at these temperatures was used as concentration of hydroxyl groups on TiO2 surface. The amount of analysed TiO2 was 10...
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SEM micrographs of Ti tooth implant corrosion
Open Research DataThe dataset contains micrographs made with a scanning electron microscope (SEM) Hitachi S-3400N of the tooth implant removed after inflammation. The inflammation was induced by the increased corrosion rate of the titanium screw. The reason for the corrosion to occur was the appearance of the concentration cell of different aeration for various areas...
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Determination of changes in viscosity of high-fructose syrup stability of pectin hydrogels depending on the temperature (25-96 Celsius degrees).
Open Research DataThe rheological characteristics of the high-fructose syrup modified stability of pectin (added in a concentration 2% m/m) were made on the basis of the viscosity assessment using a Brookfield viscometer with an LV SC4 - 25 spindle and a shear rate of 0,22 s-1 in the temperature range 25-96 ° C. The data allowed selection of optimal conditions for the...