Trisilver(I) citrate, 3Ag(+)·C(6)H(5)O(7) (3-), was obtained by evaporation of a saturated aqueous solution of the raw material that had been obtained from sodium dihydrogen citrate and silver nitrate. It features one formula unit in the asymmetric unit. There is an intra-molecular O-H⋯O hydrogen bond between the OH group and one of the terminal carboxyl-ate groups. Different citrate groups are...

Previously, a purification procedure for citrate lyase (EC 4.1.3.6) of Rhodopseudomonas gelathosa has been described [l] which because of the instability of the enzyme in some purification steps and of the low yields is not suited for the preparation of large amounts of citrate lyase. In connection with studies on the enzymes which modify citrate lyase by acetylation or deacetylation [2,3] it w...

OBJECTIVE The aim of this study was to investigate the clinical and laboratorial factors associated with serum sodium variation during continuous renal replacement therapy and to assess whether the perfect admixture formula could predict 24-hour sodium variation. METHODS Thirty-six continuous renal replacement therapy sessions of 33 patients, in which the affluent prescription was unchanged d...

Background: The use of gold nanoparticles (AuNPs) for diagnostic applications and for drug and gene-delivery is currently under intensive investigation. For such applications, biocompatibility and the absence of cytotoxicity of AuNPs is essential. Although generally considered as highly biocompatible, previous in vitro studies have shown that cytotoxicity of AuNPs in certain human epithelial ce...

A sample of venous blood was taken from each subject. Some of this (5 ml) was mixed with fresh 3 * 8% sodium citrate, 9 : 1 volumes blood to citrate, spun immediately at 3,000 r.p.m. for 10 minutes in a MSE centrifuge and the plasma was separated and deep frozen immediately. Two millilitres of blood were mixed with 20J1 of Trasylol and allowed to clot overnight, and then the serum was separated...

BACKGROUND AND OBJECTIVES Patients who may benefit from sustained low-efficiency dialysis therapy are often at risk for bleeding. A safe and simple "regional" anticoagulation strategy would be beneficial. The modification of existing regional citrate anticoagulation protocols to typically performed 8-h sustained low-efficiency dialysis is necessary. DESIGN, SETTING, PARTICIPANTS, & MEASUREMEN...

In this paper, we describe a cultivation procedure in large-capacity fermentors (200 liters) and the purification of the Salmonella crude extracts by means of zonal centrifugation in a sucrose gradient. Briefly, the endotoxin has been extracted from salmonellae with hypertonic solutions. The crude endotoxin was shown to contain several antigens, mainly r(1), r(2), r(3), or heterologous antigen....