Search results for "TnT"

Toxicity assessment and biodegradation potential of water-soluble sludge containing 2,4,6-trinitrotoluen

2013

The water-soluble phase of trinitrotoluene-containing sludge (SLP) was characterized with regard to trinitrotoluene (TNT) concentration, ecotoxicity, and a model biodegradation experiment as evaluation criteria for further development of appropriate treatment technologies. SLP contained 67.8 mg TNT/l. The results of germination and root-elongation tests indicated that SLP had a species-specific phytotoxic effect. The results of a 21 day degradation experiment demonstrated TNT conversion to 4-amino-2,6-DNT and 2-amino-4,6-DNT, with a simultaneous reduction in the total concentration of nitroaromatics. Addition of inoculum stimulated the TNT degradation process. The presence of the sludge sol…

MICROBIAL COMMUNITY CHANGES IN TNT SPIKED SOIL BIOREMEDIATION TRIAL USING BIOSTIMULATION, PHYTOREMEDIATION AND BIOAUGMENTATION

2013

Trinitrotoluene (TNT), a commonly used explosive for military and industrial applications, can cause serious environmental pollution. 28-day laboratory pot experiment was carried out applying bioaugmentation using laboratory selected bacterial strains as inoculum, biostimulation with molasses and cabbage leaf extract, and phytoremediation using rye and blue fenugreek to study the effect of these treatments on TNT removal and changes in soil microbial community responsible for contaminant degradation. Chemical analyses revealed significant decreases in TNT concentrations, including reduction of some of the TNT to its amino derivates during the 28-day tests. The combination of bioaugmentation…

Exploring the anticancer activity and the mechanism of action of pyrrolomycins F obtained by microwave-assisted total synthesis

2023

Pyrrolomycins (PMs) are a family of naturally occurring antibiotic agents, isolated from the fermentation broth of Actinosporangium and Streptomyces species. Pursuing our studies on pyrrolomycins, we performed the total synthesis of the F-series pyrrolomycins (1–4) by microwave-assisted synthesis (MAOS), thus obtaining the title compounds in excellent yields (63–69%). Considering that there is no evidence so far of the anticancer effect of this class of compounds, we investigated PMs for their antiproliferative activity against HCT116 and MCF-7 cancer cell lines. PMs showed anticancer activity at submicromolar level with a minimal effect on normal epithelial cell line (hTERT RPE-1), and the…

Utilizzo di tecniche innovative per limitare i danni da freddo in piante di mango (Mangifera indica L.) in clima mediterraneo

2015

Un facteur de transcription impliqué dans le développement de la graine chez Medicago truncatula

2013

Distribution and sources of bulk organic matter (OM) on a tropical intertidal mud bank in French Guiana from elemental and isotopic proxies

2014

International audience; The mobile French Guiana coast is a shoreface region downdrift of the Amazon River, where enormous quantities of inorganic and organic materials are exchanged with the Atlantic Ocean. The rapid accumulation of these materials forms highly unstable shore-attached mud banks, which can be temporally emerged and then rapidly colonized and stabilized by microphytobenthos and opportunistic mangroves (i.e. Avicennia germinans). Mud banks are preferential sites for the accumulation and significant remineralization of organic matter (OM) due to intense erosion/deposition cycles and potential biological colonization. The distribution and sources of bulk sedimentary OM were cha…

Multi-Biomarker Profiling and Recurrent Hospitalizations in Heart Failure.

2016

Altres ajuts: Fundació La Marató de TV3 (no.201502-30), Sociedad Española de Cardiología, Societat Catalana de Cardiologia Despite advances in pharmacologic therapy and devices, patients with heart failure (HF) continue to have significant rehospitalization rates and risk prediction remains challenging. We sought to explore the value of a multi-biomarker panel [including NT-proBNP, high-sensitivity cardiac troponin T (hs-TnT), and ST2] on top of clinical assessment for long-term prediction of recurrent hospitalizations in HF. NT-proBNP, hs-TnT, and ST2 (suppression of tumorigenicity-2) levels were measured in 891 consecutive ambulatory HF patients. The independent association between the mu…

Räjähdysaineita sisältävien maanäytteiden esikäsittelymenetelmien vertailu

2012

Räjähdysaineiden kulkeutuminen maaperään ja vesitöihin aiheuttaa merkittävän ympäristöriskin, sillä toksikologisissa tutkimuksissa räjähdysaineiden on havaittu aiheuttavan monia terveydellisiä haittoja ja ne ovat myrkyllisiä eläville organismeille. Tämän johdosta räjähdysaineita sisältävien ympäristönäytteiden analysointiin on kehitetty monia menetelmiä, jotta koko ekosysteemiä kohtaavat vahingot voitaisiin tunnistaa ja suorittaa kunnostustoimenpiteitä kontaminoituneilla alueilla. Tässä Pro gradu-tutkielmassa tarkastellaan räjähdysaineita, niiden ympäristö- ja terveysvaikutuksia sekä räjähdysaineita sisältävien maanäytteiden uuttamista ja analysointia. Tutkielmassa selvitetään nestekromatog…