Green luminescent water-soluble citric acid-carbon dots composite were synthesized from empty fruit bunches (EFB) biochar. The hydrothermal method solves the weakness of difficult size to control and large energy. has advantages being easy, environmentally friendly, not requiring energy, particle is easy control. average composites was 4 nm. resulting belongs n-π* transition carbonyl groups C–N...

In a weak acid medium, protein reacts with a monoazo dye of chromotropic acid, such as Chromazol KS (CALKS), Acid Chrome Dark Blue (ACDB), Chrome Blue SE (CBSE), Acid Chrome Blue K (ACBK), Chlorophosphonazo I (CPAI), Arsennazo I (AAI) and Chromotrope 2R (CT2R), to form a combination product. This results in a significant enhancement of the resonance Rayleigh-scattering (RRS) intensity, and the ...

Although protein is the third most abundant solid in bile and is important in cholesterol crystal formation, methods for quantitating the concentration of total protein in bile have not been systematically evaluated. To establish a reliable protein assay for bile, we evaluated three protein assays (Lowry's method and the fluorescamine and Coomassie blue methods), and employed amino acid analysi...

of cancer with the hope of developing useful diag nostic and therapeutics agents. The aim in such investigations has been to find a dye which, in the intact animal, stains living tumor cells without staining surrounding tissue. A large number of acid dyes, especially in the azo series, has been rather intensively investigated for such a purpose. From these investigations there has resulted gen ...

Blue-M1 is a blue pigment formed from xylose and glycine in the Maillard reaction. Previous work revealed that Blue-M1 scavenged hydroxyl radicals, and prevented the autoxidation of linoleic acid in vitro. We investigated the protective effect of Blue-M1 for 2,2'-azobis(2-amidino-propane)dihydrochloride (AAPH)-induced toxicity in COS-1 cells. COS-1 cells were cultured in AAPH containing DMEM me...

AIMS To determine whether myelodysplastic syndromes (MDS) are associated with sea blue histiocytosis in the bone marrow. METHODS A retrospective review of bone marrow aspirates from 35 patients presenting consecutively with MDS and from 20 patients with each of the following: normal marrow appearance (routine staging for non-Hodgkin's lymphoma), polycythaemia rubra vera, immune thrombocytopen...

Unmordanted haematein in aqueous solution varies in colour from yellowish orange at pH 3 to bluish magenta at pH 9. In the presence of aluminium sulphate, the colour of solutions of haematein at any particular pH depends on the number of aluminium atoms to each molecule of haematein. At pH 4-6 the colour varies from yellowish orange through dull red to rose as the number of aluminium atoms to e...