FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2964992904> ?p ?o ?g. }

• W2964992904 abstract "Previously we reported the biosynthesis of intracellular cadmium sulfide quantum dots (CdS QDs) at low temperatures by the Antarctic strain Pseudomonas fragi GC01. Here we studied the role of volatile sulfur compounds (VSCs) in the biosynthesis of CdS QDs by P. fragi GC01. The biosynthesis of nanoparticles was evaluated in the presence of sulfate, sulfite, thiosulfate, sulfide, cysteine and methionine as sole sulfur sources. Intracellular biosynthesis occurred with all sulfur sources tested. However, extracellular biosynthesis was observed only in cultures amended with cysteine (Cys) and methionine (Met). Extracellular nanoparticles were characterized by dynamic light scattering, absorption and emission spectra, energy dispersive X-ray, atomic force microscopy, transmission electron microscopy, X-ray diffraction and X-ray photoelectron spectroscopy. Purified QDs correspond to cubic nanocrystals of CdS with sizes between 2 and 16 nm. The analysis of VSCs revealed that P. fragi GC01 produced hydrogen sulfide (H2S), methanethiol (MeSH) and dimethylsulfide (DMS) in the presence of sulfate, Met or Cys. Dimethyldisulfide (DMDS) was only detected in the presence of Met. Interestingly, MeSH was the main VSCs produced in this condition. In addition, MeSH was the only VSCs which concentration decreased in the presence of cadmium (Cd) with all the sulfur sources tested, suggesting that this gas interacts with Cd to form nanoparticles. The role of MeSH and DMS on Cds QDs biosynthesis was evaluated in two mutants of the Antarctic strain Pseudomonas deceptionensis M1T: megL- (unable to produce MeSH from Met) and mddA- (unable to generate DMS from MeSH). No biosynthesis of QDs was observed in the megL- strain, confirming the importance of MeSH in QD biosynthesis. In addition, the production of QDs in the mddA- strain was not affected, indicating that DMS is not a substrate for the biosynthesis of nanoparticles. Here, we confirm a link between MeSH production and CdS QDs biosynthesis when Met is used as sole sulfur source. This work represents the first report that directly associates the production of MeSH with the bacterial synthesis of QDs, thus revealing the importance of different VSCs in the biological generation of metal sulfide nanostructures." @default.
• W2964992904 created "2019-08-13" @default.
• W2964992904 creator A5003156727 @default.
• W2964992904 creator A5003637117 @default.
• W2964992904 creator A5029075858 @default.
• W2964992904 creator A5032609853 @default.
• W2964992904 creator A5059741025 @default.
• W2964992904 creator A5061069390 @default.
• W2964992904 creator A5073156841 @default.
• W2964992904 creator A5087385103 @default.
• W2964992904 creator A5089783712 @default.
• W2964992904 date "2019-08-13" @default.
• W2964992904 modified "2023-10-17" @default.
• W2964992904 title "Biosynthesis of CdS Quantum Dots Mediated by Volatile Sulfur Compounds Released by Antarctic Pseudomonas fragi" @default.
• W2964992904 cites W109229135 @default.
• W2964992904 cites W1606147838 @default.
• W2964992904 cites W1966938669 @default.
• W2964992904 cites W1967139410 @default.
• W2964992904 cites W1969182757 @default.
• W2964992904 cites W1970279804 @default.
• W2964992904 cites W1973143946 @default.
• W2964992904 cites W1973440233 @default.
• W2964992904 cites W1973545537 @default.
• W2964992904 cites W1984677918 @default.
• W2964992904 cites W1988629993 @default.
• W2964992904 cites W2011399034 @default.
• W2964992904 cites W2012664765 @default.
• W2964992904 cites W2013945362 @default.
• W2964992904 cites W2019404993 @default.
• W2964992904 cites W2021924327 @default.
• W2964992904 cites W2024635981 @default.
• W2964992904 cites W2033963517 @default.
• W2964992904 cites W2035625739 @default.
• W2964992904 cites W2038005009 @default.
• W2964992904 cites W2046273170 @default.
• W2964992904 cites W2047205370 @default.
• W2964992904 cites W2049683269 @default.
• W2964992904 cites W2053264108 @default.
• W2964992904 cites W2058068516 @default.
• W2964992904 cites W2063290699 @default.
• W2964992904 cites W2074143093 @default.
• W2964992904 cites W2076436529 @default.
• W2964992904 cites W2090636609 @default.
• W2964992904 cites W2092294491 @default.
• W2964992904 cites W2093115657 @default.
• W2964992904 cites W2095407418 @default.
• W2964992904 cites W2097691801 @default.
• W2964992904 cites W2098191952 @default.
• W2964992904 cites W2101388539 @default.
• W2964992904 cites W2103025246 @default.
• W2964992904 cites W2107927329 @default.
• W2964992904 cites W2122082335 @default.
• W2964992904 cites W2132449499 @default.
• W2964992904 cites W2140674158 @default.
• W2964992904 cites W2147921491 @default.
• W2964992904 cites W2154397090 @default.
• W2964992904 cites W2168172378 @default.
• W2964992904 cites W2180510362 @default.
• W2964992904 cites W2220699312 @default.
• W2964992904 cites W2272916040 @default.
• W2964992904 cites W2291671580 @default.
• W2964992904 cites W2313138643 @default.
• W2964992904 cites W2315184619 @default.
• W2964992904 cites W2333986729 @default.
• W2964992904 cites W2339560827 @default.
• W2964992904 cites W2344008049 @default.
• W2964992904 cites W2345876112 @default.
• W2964992904 cites W2484498324 @default.
• W2964992904 cites W2521016411 @default.
• W2964992904 cites W2530695337 @default.
• W2964992904 cites W2617891742 @default.
• W2964992904 cites W2620782551 @default.
• W2964992904 cites W2741474637 @default.
• W2964992904 cites W2745416311 @default.
• W2964992904 cites W2752455195 @default.
• W2964992904 cites W2761034900 @default.
• W2964992904 cites W2765793732 @default.
• W2964992904 cites W2776733363 @default.
• W2964992904 cites W2785324088 @default.
• W2964992904 cites W2793663807 @default.
• W2964992904 cites W2794057393 @default.
• W2964992904 cites W2885299843 @default.
• W2964992904 cites W2891438271 @default.
• W2964992904 cites W2893264940 @default.
• W2964992904 cites W2898957327 @default.
• W2964992904 cites W2922075446 @default.
• W2964992904 cites W2922159326 @default.
• W2964992904 cites W2936758238 @default.
• W2964992904 cites W2937395475 @default.
• W2964992904 cites W4211073397 @default.
• W2964992904 doi "https://doi.org/10.3389/fmicb.2019.01866" @default.
• W2964992904 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/6700389" @default.
• W2964992904 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/31456780" @default.
• W2964992904 hasPublicationYear "2019" @default.
• W2964992904 type Work @default.
• W2964992904 sameAs 2964992904 @default.
• W2964992904 citedByCount "33" @default.
• W2964992904 countsByYear W29649929042020 @default.
• W2964992904 countsByYear W29649929042021 @default.
• W2964992904 countsByYear W29649929042022 @default.

• next