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Room Temperature Synthesis of Aminocaproic Acid-Capped Lead Sulphide Nanoparticles  [PDF]
Jayesh D. Patel, Frej Mighri, Abdellah Ajji, Sa?d Elkoun
Materials Sciences and Applications (MSA) , 2012, DOI: 10.4236/msa.2012.32020
Abstract: Aminocaproic acid (ACA) mixed methanolic lead acetate-thiourea (PbAc-TU) complex as precursor for fabrication of lead sulphide (PbS) nanoparticles (NPs) has been explained. The size, structure and morphology of as-prepared ACA-capped PbS NPs were systematically characterized by scanning electron microscopy (SEM), Transmission electron mi-croscopy (TEM), X-ray diffraction (XRD), Uv-vis spectroscopy and Brunauer-Emmett-Teller (BET) techniques. The obtained results show that the synthesized PbS NPs are nanocrystalline, size quantized and their agglomeration shows a mesoporous network of 8.7 nm in pore size. The binding nature of ACA molecules on PbS surface was studied by thermo gravimetric analysis (TGA), Fourier transform infrared (FTIR) and X-ray photoelectron (XPS) techniques. Results indicate that ACA acts as a soft template that restricts the growth of PbS NPs through its binding to Pb surface via nitrogen lone pair.
The Efficacy of Epsilon-aminocaproic Acid and its Timing in Reducing Blood Loss in Major Cardiac Coronary Bypass Surgery: A Randomized Double-blinded Placebo-controlled Study  [PDF]
Mahin Gharebaghian M.D.,Payam Eghtesadi-Araghi M.D.
International Journal of Pharmacology , 2006,
Abstract: It has been shown that in patients undergoing primary minor Coronary Artery Bypass Graft surgery (CABG), epsilon-aminocaproic acid (epsilon-ACA) produces a reduction in chest tube drainage and this effect was similar whether the drug is given prior to incision or following anticoagulation. The aim of this study was to investigate the efficacy of epsilon-ACA and its timing in reducing blood loss in major CABG. In a randomized double-blind study, 60 adult patients undergoing primary CABG requiring equal or more than 4 grafts with extracorporeal circulation were allocated to receive epsilon-ACA either prior to skin incision (bolus 150 mg kg-1, followed by an infusion at 15 mg kg-1 h-1), either prior to skin incision or after heparin, or placebo. All infusions were terminated at the end of cardiopulmonary bypass. Postoperative chest tube drainages (at 6, 12 h and at chest tube removal) were compared. The control group had significantly greater chest tube drainage than either of the two epsilon-ACA groups, at 6 h and chest tube removal times (p<0.05). Also there was a significant difference in postoperative chest tube drainages pattern between control and either of the two epsilon-ACA groups (p<0.05) but not between two epsilon-ACA groups. Epsilon-ACA effectively reduces blood loss through chest tubes in patients undergoing major CABG and its administration timing has no effects. Considering comparable hemostatic efficacy, it is recommended administering epsilon-ACA next to anticoagulation.
INDUSTRIAL WASTED WATER TREATMENT WITH ALUMINIUM SULPHATE COAGULANT
Khromysheva О.О.,Khromyshev V.О.,Khromyshev О.V.
Bìologì?nij Vìsnik Melìtopol?s?kogo Der?avnogo Pedagogì?nogo Universitetu ìmenì Bogdana Hmel?nic?kogo , 2011,
Abstract: Physical and chemical regularities of coagulant treatment of sewage of Open Joint-Stock Company GidrosylaMZTG from heavy metals, chlorides and sulfates by with aluminum sulphate are studied.
A Comparison of aminocaproic Acid and Tranexamic Acid in Adult Cardiac Surgery.  [cached]
Chauhan S,Gharde P,Bisoi A,Kale S
Annals of Cardiac Anaesthesia , 2004,
Abstract: We compared Aminocaproic acid with tranexamic acid, prospectively in 120 patients undergoing coronary artery bypass surgery on cardiopulmonary bypass. Patients were assigned to one of the 3 groups. Group A (n=40) did not receive any drug and acted as the control group. Group B (n=4) received aminocaproic acid 100 mg/kg each at anaesthetic induction, on bypass and after protamine reversal of heparin. group C (n=40) received tranexamic acid 10 mg/kg each at anaesthetic induction, on bypass and after protamine reversal of heparin. Postoperative blood loss at 24 hours, blood and blood product usage, and re-exploration rates were recorded, and tests for coagulation were performed at 6 hours postoperatively. It was found that blood loss in group A at 24 hours (780+/-120 mL) was significantly greater than Group B (360+/-90 mL) and Group C (215+/-70 mL). Plasma and platelet concentrate use in Group A (215+/-30 mL and 150+/-30 mL) was greater than Group B (190+/-20 mL and 75+/-30 mL) and Group C (185+/-20 mL and 80+/-30 mL). Re- explorations in Group A, 8/40 (20%) were greater than Group B, 2/40 (5%) and Group C, 2/40 (5%). Coagulation tests revealed better preservation of fibrinogen and lower levels of fibrin degradation products, in group B and C. These two groups were however statistically indistinguishable in respect to all the parameters studied, when compared with each other. It was concluded that both the antifibrinolytic agents in the doses studied were equally effective in reducing postoperative blood loss, blood and blood products usage and re-exploration rates. Coagulation parameters were better preserved as compared to the control group.
Preparation of PFS coagulant by sectionalized reactor
CHANG Qing,WANG Hong-yu,
CHANG Qing
,WANG Hong-yu

环境科学学报(英文版) , 2002,
Abstract: The oxidation rate of ferrous sulfate is investigated for the preparation of polyferric sulfate(PFS) coagulant. It is proved that this reaction is zero order with respect to Fe 2+ , first order with respect to NO 2(g), and first order with respect to the interface area between gas phase and liquid phase. According to this mechanism, sectionalized reactor(SR) is used in place of traditional reactor(TR), and the liquid of reaction mixture is recycled by pump. As a result, not only the flow path of reaction liquid is prolonged, but also gas liquid contact area enlarged, and the reaction distinctly accelerated, compared with traditional reactor. The effects of parameters including temperature, acidity and others on the reaction rate are also discussed.
Amniotic Membrane Transplantation  [cached]
Alireza Baradaran-Rafii,Hamid-Reza Aghayan,Babak Arjmand,Mohammad-Ali Javadi
Journal of Ophthalmic & Vision Research , 2008,
Abstract: The past decade has witnessed the revival of amniotic membrane transplantation (AMT) in ophthalmology. The importance of amniotic membrane lies in its ability to reduce inflammation and scarring, enhance epithelialization and wound healing, and in its antimicrobial properties. Amniotic membrane has recently been used as a substrate for culturing limbal stem cells for transplantation. It has also been used extensively in corneal conditions such as neurotrophic ulcers, persistent epithelial defects, shield ulcers, microbial keratitis, band keratopathy, bullous keratopathy, and following photorefractive keratectomy and chemical injuries. Other indications for AMT include ocular surface reconstruction surgery for conjunctival pathologies such as squamous neoplasia, pterygium, and symblepharon. In this review we describe the basic structure and properties of amniotic membrane, its preparation process and its applications in ophthalmology.
KINETICS AND MECHANISM OF OXIDATION OF 6-AMINOCAPROIC ACID BY DIHYDROXYDIPERIODATOA RGENTATE (III) IN ALKALINE MEDIUM
HUO,SHUYING; SONG,CHANGYING; HUAN,SHANJIN; SHEN,SHIGANG; SUN,HANWEN;
Journal of the Chilean Chemical Society , 2007, DOI: 10.4067/S0717-97072007000100011
Abstract: the oxidation of 6-aminocaproic acid by ag(iii) complex, dihydroxydiperiodatoargentate(iii) (dpa), was studied in alkaline medium. the reaction was first order with respect to ag(iii) complex, and the order with respect to 6-aminocaproic acid was from one to two. a plausible mechanism involving a pre-equilibrium of adduct formation between the complex and reductant was proposed form the kinetics study. the rate equations derived from mechanism can explain all experimental phenomena, and the activation parameters along with rate constants of the rate-determining step were calculated
KINETICS AND MECHANISM OF OXIDATION OF 6-AMINOCAPROIC ACID BY DIHYDROXYDIPERIODATOA RGENTATE (III) IN ALKALINE MEDIUM  [cached]
SHUYING HUO,CHANGYING SONG,SHANJIN HUAN,SHIGANG SHEN
Journal of the Chilean Chemical Society , 2007,
Abstract: The oxidation of 6-Aminocaproic acid by Ag(III) complex, dihydroxydiperiodatoargentate(III) (DPA), was studied in alkaline medium. The reaction was first order with respect to Ag(III) complex, and the order with respect to 6-aminocaproic acid was from one to two. A plausible mechanism involving a pre-equilibrium of adduct formation between the complex and reductant was proposed form the kinetics study. The rate equations derived from mechanism can explain all experimental phenomena, and the activation parameters along with rate constants of the rate-determining step were calculated
AMNIOTIC BAND SYNDROME
Velimir Kosti?,Gordana Trifunovi?,Marina ?or?evi?,Branislav Jovanovi?
Acta Medica Medianae , 2009,
Abstract: Amniotic band syndrome (ABS) is a set of congenital malformations attributed to amniotic bands that entangle fetal parts during intrauterine life, which results in a broad spectrum of anatomic disturbances - ranging from minor constriction rings and lymphedema of the digits to complex, bizarre multiple congenital anomalies incompatible with life. ABS is not very often, but should be considered in every newborn with congenital anomalies, especially defects of extremities and/or body walls. ABS can be diagnosed prenatally by ultrasound; otherwise, the defects are seen after birth. Child's karyotyping is of great importance, in order to avoid misdiagnosis and incorrect information of recurrence risk. A team of specialists should be included in the treatment and follow-up of children with ABS, according to individual needs of every single patient.The aim of this paper is to point out diagnostic and therapeutic approaches in newborns with ABS trough the report of two cases.
填饲后朗德鹅肝脏和小肠组织中mtp基因表达研究  [PDF]
叶健强,韩春春,王继文
牲畜兽医学报 , 2009,
Abstract: ?为了探讨填饲对mtp基因表达的影响,本研究采用rtpcr法检测了填饲后mtp基因在朗德鹅肝脏和小肠组织中的表达情况,并对6种体组成参数和甘油三酯等4种血清生化指标进行了检测。结果表明:填饲后,各体组成参数和血清生化指标的水平都显著升高;mtp基因在朗德鹅的肝脏和小肠组织中都有表达;填饲后肝脏组织中mtp基因的表达无显著性变化(p>0.05),而小肠组织中的mtp基因的表达水平却显著升高(p<005)。结论:填饲引起mtp基因在小肠和肝脏中的变化差异可能与肝细胞中可利用脂类物质的水平、其它调控因子及填饲的高脂食物有关。
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