Matches in SemOpenAlex for { <https://semopenalex.org/work/W2005332983> ?p ?o ?g. }
- W2005332983 endingPage "354" @default.
- W2005332983 startingPage "340" @default.
- W2005332983 abstract "Micro-organisms such as bacteria and yeasts form CdS to detoxify toxic cadmium ions. Frequently, CdS particles formed in yeasts and bacteria were found to be associated with specific biomolecules. It was later determined that these biomolecules were present at the surface of CdS. This coating caused a restriction in the growth of CdS particles and resulted in the formation of nanometre-sized semiconductors (NCs) that exhibited typical quantum confinement properties. Glutathione and related phytochelatin peptides were shown to be the biomolecules that capped CdS nanocrystallites synthesized by yeasts Candida glabrata and Schizosaccharomyces pombe. Although early studies showed the existence of specific biochemical pathways for the synthesis of biomolecularly capped CdS NCs, these NCs could be formed in vitro under appropriate conditions. We have recently shown that cysteine and cysteine-containing peptides such as glutathione and phytochelatins can be used in vitro to dictate the formation of discrete sizes of CdS and ZnS nanocrystals. We have evolved protocols for the synthesis of ZnS or CdS nanocrystals within a narrow size distribution range. These procedures involve three steps: (1) formation of metallo-complexes of cysteine or cysteine-containing peptides, (2) introduction of stoichiometric amounts of inorganic sulfide into the metallo-complexes to initiate the formation of nanocrystallites and finally (3) size-selective precipitation of NCs with ethanol in the presence of Na+. The resulting NCs were characterized by optical spectroscopy, high-resolution transmission electron microscopy (HRTEM), x-ray diffraction and electron diffraction. HRTEM showed that the diameter of the ZnS-glutathione nanocrystals was 3.45?0.5 nm. X-ray diffraction and electron diffraction analyses indicated ZnS-glutathione to be hexagonal. Photocatalytic studies suggest that glutathione-capped ZnS nanocrystals prepared by our procedure are highly efficient in degrading a test model compound." @default.
- W2005332983 created "2016-06-24" @default.
- W2005332983 creator A5001015545 @default.
- W2005332983 creator A5025694569 @default.
- W2005332983 creator A5031632929 @default.
- W2005332983 creator A5033407896 @default.
- W2005332983 creator A5069138028 @default.
- W2005332983 creator A5075570325 @default.
- W2005332983 creator A5083976158 @default.
- W2005332983 date "1999-08-12" @default.
- W2005332983 modified "2023-10-02" @default.
- W2005332983 title "Biomolecularly capped uniformly sized nanocrystalline materials: glutathione-capped ZnS nanocrystals" @default.
- W2005332983 cites W115349783 @default.
- W2005332983 cites W143792815 @default.
- W2005332983 cites W1485806895 @default.
- W2005332983 cites W1558503775 @default.
- W2005332983 cites W1664552158 @default.
- W2005332983 cites W1847031462 @default.
- W2005332983 cites W1880448381 @default.
- W2005332983 cites W1969933866 @default.
- W2005332983 cites W1970307506 @default.
- W2005332983 cites W1971689344 @default.
- W2005332983 cites W1974378381 @default.
- W2005332983 cites W1975318687 @default.
- W2005332983 cites W1975648862 @default.
- W2005332983 cites W1978467496 @default.
- W2005332983 cites W1978769860 @default.
- W2005332983 cites W1982649213 @default.
- W2005332983 cites W1982815414 @default.
- W2005332983 cites W1983382833 @default.
- W2005332983 cites W1985956301 @default.
- W2005332983 cites W1991101882 @default.
- W2005332983 cites W1992451957 @default.
- W2005332983 cites W1992909684 @default.
- W2005332983 cites W1993289359 @default.
- W2005332983 cites W1996673921 @default.
- W2005332983 cites W2003098891 @default.
- W2005332983 cites W2008498840 @default.
- W2005332983 cites W2009981131 @default.
- W2005332983 cites W2010740002 @default.
- W2005332983 cites W2011286299 @default.
- W2005332983 cites W2021170327 @default.
- W2005332983 cites W2024717335 @default.
- W2005332983 cites W2025442951 @default.
- W2005332983 cites W2025550305 @default.
- W2005332983 cites W2025669689 @default.
- W2005332983 cites W2029749273 @default.
- W2005332983 cites W2030684792 @default.
- W2005332983 cites W2030997360 @default.
- W2005332983 cites W2031907367 @default.
- W2005332983 cites W2035271032 @default.
- W2005332983 cites W2038215752 @default.
- W2005332983 cites W2038883485 @default.
- W2005332983 cites W2039661853 @default.
- W2005332983 cites W2045646349 @default.
- W2005332983 cites W2047215096 @default.
- W2005332983 cites W2048467224 @default.
- W2005332983 cites W2049106847 @default.
- W2005332983 cites W2052491407 @default.
- W2005332983 cites W2054386354 @default.
- W2005332983 cites W2055702689 @default.
- W2005332983 cites W2057039022 @default.
- W2005332983 cites W2058355447 @default.
- W2005332983 cites W2059589359 @default.
- W2005332983 cites W2059816629 @default.
- W2005332983 cites W2060165907 @default.
- W2005332983 cites W2060325555 @default.
- W2005332983 cites W2061648015 @default.
- W2005332983 cites W2063132420 @default.
- W2005332983 cites W2069080281 @default.
- W2005332983 cites W2069182759 @default.
- W2005332983 cites W2071050755 @default.
- W2005332983 cites W2074823474 @default.
- W2005332983 cites W2074905365 @default.
- W2005332983 cites W2076436529 @default.
- W2005332983 cites W2077302471 @default.
- W2005332983 cites W2077887446 @default.
- W2005332983 cites W2087236406 @default.
- W2005332983 cites W2089969081 @default.
- W2005332983 cites W2091273276 @default.
- W2005332983 cites W2093065511 @default.
- W2005332983 cites W2094437628 @default.
- W2005332983 cites W2110540540 @default.
- W2005332983 cites W2118847709 @default.
- W2005332983 cites W2123605247 @default.
- W2005332983 cites W2139955764 @default.
- W2005332983 cites W2148092984 @default.
- W2005332983 cites W2150972285 @default.
- W2005332983 cites W2168172378 @default.
- W2005332983 cites W2169992997 @default.
- W2005332983 cites W350433348 @default.
- W2005332983 cites W4236039920 @default.
- W2005332983 cites W4255514437 @default.
- W2005332983 doi "https://doi.org/10.1088/0957-4484/10/3/319" @default.
- W2005332983 hasPublicationYear "1999" @default.
- W2005332983 type Work @default.
- W2005332983 sameAs 2005332983 @default.
- W2005332983 citedByCount "64" @default.