Search results for "DMS"

Augstas kapacitātes ārpusšūnu vezikulu izdalīšana ar plūsmas lauka frakcionēšanas metodi mikrofluīdikā

2021

Visas šūnas, tostarp vēža šūnas, izdala nanoizmēra ārpusšūnu vezikulas (EVs), kas satur svarīgas biomolekulas – miRNS, proteīnus un daudzas citas. EVs nodrošina šūnu savstarpējo komunikāciju, regulējot gan normālos gan patoloģiskos apstākļus. Šobrīd tās ir intensīvi pētītas kā potenciālie biomarķieri dažādu slimību diagnostikā un terapijā. Neskatoties uz EV priekšrocībām to izolēšanas metodes kavē EV pielietojumu klīniskajos pētījumos. Uz doto brīdi ir izstrādāti dažādi risinājumi pielietojot mikrofluīdikas ierīces, kas neietekmē EV integritāti un tām ir laba atkārtojamība, taču šīs ierīces ir domātas maza tilpuma paraugiem - serumam un asinīm. Šī darba mērķis ir izveidot mikroiekārtu, kas …

PDMS membranes for feasible recovery of dissolved methane from AnMBR effluents

2020

[EN] This study aimed to evaluate the feasibility of degassing membrane (DM) technology for recovering dissolved methane from AnMBR effluents. For that purpose, a PDMS membrane module was operated for treating the effluent from an AnMBR prototype-plant, which treated urban wastewater (UWW) at ambient temperature. Different transmembrane pressures and liquid flow rates were applied for evaluating methane recovery efficiency. Maximum methane recoveries were achieved when increasing the vacuum pressure and reducing the liquid flow rate, reaching a maximum methane recovery efficiency of around 80% at a transmembrane pressure (TMP) of 0.8 bars and a treatment flow rate (Q(L)) of 50 L h(-1). The …

Stoichiometric and kinetic study of the 99Tc-DMSA complex obtained with stannous excess: A possible model for the physico-chemical behaviour of the r…

1982

A stoichiometric and kinetic study was made of the 99mTc-DMSA complex obtained in the presence of large amounts of Sn2+. It is demonstrated that the Tc oxidation state is 3+. It is established that the complex degrades to another one if there is an Sn2+ deficiency. These results were confirmed by spectroscopic and spectrophotometric methods.

Stability of the radiopharmaceutical []DMSA: Study of the ligand exchange reaction with [99Tc]EDTA

1983

Abstract A kinetic study was made of the ligand exchange reaction between [ 99 m Tc]EDTA and DMSA. The results of this study indicate that this exchange reaction is closely related to temperature and pH. Kinetic and thermodynamic parameters demonstrate that both complexes—[ 99 m Tc]EDTA and [ 99 m Tc]DMSA—have a similar stability. Furthermore, the existence of an acid-basic catalysis for the global exchange reaction was established, and the catalytic parameters were calculated. These data were obtained by radiochromatography and visible spectrophotometry.

Dispositivi microfluidici per lo studio di reazioni elettrochimiche

2008

DYKE DAVIDOFF MASSON SYNDROME:PROFILO DI SVILUPPO NEURO-COGNITIVO A 4 ANNI IN UN PAZIENTE CON DIAGNOSI IN EPOCA NEONATALE

2015

ipoplasia emisferica, DDMS, dilatazione ventricolare

s-Block metal scorpionates – A new sodium hydrido-tris(3,5-dimethyl-1-pyrazolyl)borate salt showing an unusual core stabilized by bridging and termin…

2020

Abstract Dissolution of [(μ-Me2CO)3(NaTp*)2] (1) (Tp* = hydrido-tris(3,5-dimethyl-1-pyrazolyl)borate) in DMSO at room temperature leads to the growth of colourless crystals characterized as the new salt [Na2Tp*(μ-Me2SO)3(Me2SO)3] [NaTp* 2] (2). 2 crystallized in the trigonal space group R3 with Z = 3, a = 14.1227(2) Å, b = 14.1227(10) Å, c = 33.9685(2) Å, and V = 5867.35(17) Å3. Interestingly, anion and cation of 2 both contain the Tp* ligand. Moreover, the cationic moiety highlights an unusual sodium atom hexacoordinated by six DMSO molecules acting as O-bonded ligands. Three of which exhibit a bridging coordination mode and three are in terminal position. To the best of our knowledge, the…

Vascular Endothelial Growth Factor-Releasing Microspheres Based on Poly(ε-Caprolactone-PEG-ε-Caprolactone)-b-Poly(L-Lactide) Multiblock Copolymers In…

2020

Pancreatic islet transplantation is a promising advanced therapy that has been used to treat patients suffering from diabetes type 1. Traditionally, pancreatic islets are infused via the portal vein, which is subsequently intended to engraft in the liver. Severe immunosuppressive treatments are necessary, however, to prevent rejection of the transplanted islets. Novel approaches therefore have focused on encapsulation of the islets in biomaterial implants which can protect the islets and offer an organ-like environment. Vascularization of the device’s surface is a prerequisite for the survival and proper func- tioning of transplanted pancreatic islets. We are pursuing a prevascularization s…

Fast blue B functionalized silica-polymer composite to evaluate 3,5-dihy-droxyhydrocinnamic acid as biomarker of gluten intake

2021

Celiac disease is an immune-mediated systemic disorder elicited by gluten and related prolamines in genetically susceptible individuals. The current treatment is a strict and lifelong gluten-free diet. However, compliance with the gluten-free diet is not always adequate and many food products contain low concentrations of gluten. The determination of dietary transgressions is a challenge for patients, physicians and dietitians. Alkylresorcinols (AR) have been proposed as sensitive and specific biomarkers of gluten consumption. In this work silica-polymer composites doped with fast blue B reagent (FB) have been used to estimate alkylresorcinols in biological samples. The proposed colorimetri…

Data from: Choosy beetles: how host trees and southern boreal forest naturalness may determine dead wood beetle communities

2021

See methods section of paper for detailed information on dataset and sources; briefly, these .csv files includes numbers of each beetle species captured at all sites used in the project, as well as information about each site and about each species. Data from: Choosy beetles: how host trees and southern boreal forest naturalness may determine dead wood beetle communities Ryan C. Burner, Tone Birkemoe, Jörg G. Stephan, Lukas Drag, Jörg Muller, Otso Ovakainen, Mária Potterf, Olav Skarpaas, Tord Snall, Anne Sverdrup-Thygeson Forest Ecology and Management, 2021 From abstract of paper: Wood-living beetles make up a large proportion of forest biodiversity, and contribute to important ecosystem se…