... Measurements and Oxidative Stability of These Materials After Mechanically Grinding .70 3.3.5 Re -Functionalization of the Surfaces of Silica-Cobalt Complexes 72 3.3.5.1 Functionalization of the ... properties, and applications of polymethylhydrosiloxane and its copolymers An overview of poly(ethylene oxide) is provided in the fourth section including a discussion of its functionalization and utilization ... preparation of silica is via sol-gel routes Brinker and Scherer defined sol-gel as the fabrication of ceramic materials by the preparation of a sol, gelation of the sol, and removal of the solvent.11...
Ngày tải lên: 13/11/2014, 16:16
... presence of reducing and stabilizing agents, and subsequent (ex situ) ligand exchange with aptamers This ligand exchange might require heating and buffering in order to achieve satisfactory yields and ... Page of 11 In spite of these benefits, the use of laser-ablationbased in situ conjugation for the generation of aptamerconjugated AuNPs has not yet been reported We show the functionalization of ... http://www.jnanobiotechnology.com/content/8/1/21 Page of 11 Figure Verification of the activity of aptamer-conjugated AuNPs (A) The shift of the SPR maximum clearly indicates the formation of agglomerates in the presence of streptavidin...
Ngày tải lên: 11/08/2014, 00:22
Surface functionalization of superparamagnetic iron oxide nanoparticles for potential cell targeting, imaging, and cancer therapy applications
... spectra of (a) pristine SPIONs and (b) PLMA2-SPIONs. Figure 3-6 Schematic representation of the synthesis of PLMA-1-PEGSPIONs Site and extent of amide band formation between H2NPEG and PLMA-1 ... DEGREE OF DOCTOR OF PHILOSOPHY DEPARTMENT OF CHEMICAL AND BIOMOLECULAR ENGINEERING NATIONAL UNIVERSITY OF SINGAPORE 2012 ACKNOWLEDGEMENTS My sincere and deep gratitude goes first and ... Release profiles of cisplatin from Pt-Fe-PNs in DI water, PBS, and artificial urine at 37 oC Inset shows the release profile in the first 10 h Figure 6-9 Size increase of a mixture of Pt-Fe-PNs and...
Ngày tải lên: 09/09/2015, 10:14
In vitro study of surface functionalization of titanium substrates for potential enhancement of osseointegration and reduction of bacterial infection
... surface of the pristine and functionalized Ti substrates Table 6.2 Surface density of loaded alendronate, and surface roughness of the pristine and functionalized Ti substrates viii LIST OF FIGURES ... wide-scan spectra (a) and XRD spectra (b) of the pristine Ti, TiS, TiH, TiSH, TiH-10 and TiSH-10 substrates and indicate the presence of anatase and rutile, respectively c: FESEM images of the pristine ... understanding and support I would also like to show my gratitude to my family for their unconditional support and love i TABLE OF CONTENTS ACKNOWLEGEMENT TABLE OF CONTENTS i ii SUMMARY vi LIST OF...
Ngày tải lên: 10/09/2015, 09:13
Synthesis and functionalization of micro nano particles for malicious cells detection and elimination
... monomeric cations, because of the presence of a large number of negatively charged species in the membrane Thus, the disruption of membrane and subsequent leakage of K+ ions and other cytoplasmic ... advantages of ease of mass production and scale up, and the microparticles possess stability for repeated usage In the second part of the work, magnetic nanoparticles were developed for the detection and ... addition of stated amount of C6-beads) 62 Figure 3.7 Scanning electron micrograph of fungal spore on surface of C6-bead after antifungal assay (400 mg of beads in contact with 50 ml of sucrose...
Ngày tải lên: 14/09/2015, 14:09
Chromium speciation in municipal solid waste: Effects of clay amendment and composting
... Ecosystems and Environment, 27, 493-503 Qiao, L., Hofstede, H and Ho, G E (1993) The mobility of heavy metals in clay amended sewage sludge and municipal solid waste compost In: Proceeding of 9th ... fixing of the free metal ions through metal precipitation as hydroxides and carbonates, adsorption onto oxides and mineral surfaces and chemisorption or complexation with inorganic ligands The ... 1993) In order to determine the long-term fate and potential hazard of land application of MSW compost, it is necessary to investigate the speciation of heavy metals Difficulties in studying this...
Ngày tải lên: 23/09/2012, 14:48
Báo cáo khoa học: " Medication errors: a prospective cohort study of hand-written and computerised physician order entry in the intensive care unit"
... the remit of the local ethics committee Prior to introduction of CPOE, local standards of prescribing existed specifying the tenets of good practice, including the avoidance of the use of abbreviations ... decision support, in several ways We compare the rates and types of MEs and the potential outcome of intercepted and non-intercepted errors Materials and methods In April 2002, University College Hospitals ... for days; and 18 December 2002 for days Available online http://ccforum.com/content/9/5/R516 Table Types of medication errors before and after implementing CPOE HWP (no of errors and % of total...
Ngày tải lên: 25/10/2012, 10:39
Báo cáo y học: "A Comparison of Immuncapture Agglutination and ELISA Methods in Serological Diagnosis of Brucellosis"
... Brucellacapt and Coombs tests in terms of sensitivity and specificity in the diagnosis and follow-up of brucellosis and it was concluded that the results were similar in the follow-up of patients ... purpose of this study is to compare the diagnostic values of Immuncapture agglutination and ELISA methods, which are used for the diagnosis of brucellosis with reference to Coombs test MATERIAL AND ... 1/5120 positive and 1/10240 positive ELISA results, on the other hand, were divided into positive and negative and a distribution table was structured according to the results of immuncapture...
Ngày tải lên: 25/10/2012, 10:56
Báo cáo y học: "Enhancement of the Click Chemistry for the Inverse Diels Alder Technology by Functionalization of Amide-Based Monomers"
... 2-cyano-nicotinic acid and ml of hydrazine (at least 80%) were heated in an oil bath for 30 Between 80 and 90°C the evolution of ammonia starts and the material in the flask solidified and turned to orange ... Ligation of Pentamer II with the dansyl-tetrazine Two µmoles (1.86 mg) of the pentamer II (Figure 4) and 10 mmol (8.8 mg) of the dansyl-tetrazine were dissolved in 0.5 ml chloroform/DMSO and reacted ... minutes and then washed thoroughly with dimethylformamide Cleavage and deprotection of the resins were made by treatment with 90% trifluoroacetic acid and 10% triethylsilane Solid phase synthesis of...
Ngày tải lên: 25/10/2012, 11:00
Báo cáo y học: "Parvovirus B19 Nonstructural Protein-Induced Damage of Cellular DNA and Resultant Apoptosis"
... case of specific integration of AAV We present here evidence suggesting that NS1 is attached to DNA in a covalent manner, and that both DNA-helix distorting and single strand nick forms of DNA ... multiple types of DNA lesions and that are often caused by collapsed replication forks (44) NS1 could easily cause double strand breaks through the simple mechanism of nicking both DNA strands a short ... evidence for an interaction between NS1 and PARP Since PARP is active at the site of single strand DNA breaks, and single-strand nicking is a known activity of NS1 protein, it is likely that NS1...
Ngày tải lên: 25/10/2012, 11:18
Báo cáo y học: "omparative Efficacy and Tolerability of 5-Loxin® and Aflapin® Against Osteoarthritis of the Knee: A Double Blind, Randomized, Placebo Controlled Clinical Study"
... comparative efficacy and tolerability of 5-Loxin® and Aflapin® in the treatment of OA of the knee Materials and Methods Study materials BE-30 (5-Loxin) is a novel Boswellia serrata extract standardized ... Hematological and biochemical evaluations For assessment of safety of 5-Loxin® and Aflaseveral parameters were evaluated in serum, urine and whole blood of all subjects at each visit of the study ... software to evaluate the efficacy of 5-Loxin® and Aflapin® in comparison with the placebo group in terms of improvement in pain and physical function scores at baseline and on days 7, 30, 60 and...
Ngày tải lên: 25/10/2012, 11:40
Báo cáo y học: " Post-traumatic glioma: Report of one case and review of the literature"
... imperative because of the relatively low prevalence of head injuries and the low incidence of brain tumors Conflict of Interest The authors have declared that no conflict of interest exists References ... use of CT and magnetic resonance imaging (MRI), some of the pathologic criteria can be replaced or supplemented by imaging criteria CT/MRI, which elegantly reveal the severity and location of ... occurrence of the tumor corresponded exactly one to the other; and (4) there was a more than one year interval between trauma and the appearance of the tumor As regards the pathogenesis of post-traumatic...
Ngày tải lên: 25/10/2012, 11:48
Báo cáo y học: "Ultra-low microcurrent in the management of diabetes mellitus, hypertension and chronic wounds: Report of twelve cases and discussion of mechanism of action"
... mellitus High levels of free radicals and the decline of antioxidant defense mechanisms lead to damage of cellular organelles and enzymes, increased lipid peroxidation, and development of insulin resistance ... Popliteal and pedal pulses were absent bilaterally with poor capillary refill The left foot was red and inflamed up to and including the medial malleolus The lateral aspect of the great toe and second ... continued to improve and heal, and her remaining gangrenous toes eventually fell off Her blood pressure at admission was 166/53 with use of Lisinopril, which was dropped and eventually ceased...
Ngày tải lên: 26/10/2012, 09:39
Báo cáo y học: "980 nm diode lasers in oral and facial practice: current state of the science and art"
... reliability, ease of use and affordability of the 980 nm Diode Lasers, we evaluated the efficacy and safety of one such Laser for the treatment of pathological frenulum, keratoses, angiomas and telangiectases ... treatment of choice by both clinicians and patients, and in some cases, the standard of care Clinicians need to learn more about constantly updated technology and apply newly discovered methods and ... experience" of the specialist The aim of this study was to verify the reliability and efficacy of one of these compact portable diode instruments, emitting a maximum power density of 30W/cm2 not...
Ngày tải lên: 26/10/2012, 09:48
Báo cáo y học: " A Dietary Supplement Containing Standardized Phaseolus vulgaris Extract Influences Body Composition of Overweight Men and Women"
... circumstances Upon completion of the study, the envelope was opened in the presence of a representative of the sponsor and of the Principal Investigator, and the representative formulas of the samples were ... Dr Preuss and Dr Perricone analyzed the data and played a significant role in the writing of the manuscript Some sections have been modified and/ or expanded for clarification Conflict of Interests ... Soininen H, Nissinen A Obesity and vascular risk factors at midlife and the risk of dementia and Alzheimer disease Arch Neurol 2005; 62:1556-1560 US Dept of Health and Human Services Publication...
Ngày tải lên: 31/10/2012, 15:12
Báo cáo y học: "The association of meat intake and the risk of type 2 diabetes may be modified by body weight"
... lians (50g/lian) per unit of time A lian is the unit of weight in China equivalent to 50 g The reproducibility and validity of the FFQ was assessed in a random sample of 200 participants who completed ... alcohol consumption and history of hypertension, coronary heart disease (CHD), stroke, and cancer Anthropometric measurements, including weight, height, and circumferences of the waist and hips, were ... part of a dietary pattern 155 associated with a higher risk of type DM [17] To our knowledge there are no other reports of a direct link between poultry consumption and risk of diabetes or of interactions...
Ngày tải lên: 31/10/2012, 16:49
Báo cáo y học: "Management of HCV Infection and Liver Transplantation"
... because of the patient's often poor performance status, their increased susceptibility to infection and rejection, and the presence of anemia and renal dysfunction that lessen the tolerability of ... combination of pegylated interferon alpha-2b and ribavirin have resulted in end -of- treatment and sustained virological response rates ranging from 27-64% and 0-36%, respectively [24,25] Treatment of recurrent ... M, Seaberg E Impact of immunosuppression and acute rejection on recurrence of hepatitis C: results of the National Institute of Diabetes and Digestive and Kidney Diseases Liver Transplantation...
Ngày tải lên: 31/10/2012, 17:08
Báo cáo y học: "Comparison of Classical and Clozapine Treatment on Schizophrenia Using Positive and Negative Syndrome Scale of Schizophrenia (PANSS) and SPECT Imaging"
... in winter and early spring, and viral infections in the mother during the second and third trimesters of gestation A strong association between hypofrontality and negative symptoms of schizophrenia, ... passivity and apathy, difficulty in abstract thinking, lack of spontaneity and flow of conversation, and stereotyped thinking (N1 to N7); and health concerns, anxiety, guilt, tension, mannerisms and ... MRI and CT, creating a single image that combines anatomy and physiology Three dimensional surface and volume- rendered images add perspective and facilitate the localization and sizing of lesions...
Ngày tải lên: 02/11/2012, 11:12
Báo cáo y học: "Advances in Molecular Diagnosis of HBV Infection and Drug Resistance"
... serological profiles fall outside of classical patterns Some key advantages and disadvantages of HBV DNA testing are presented in Table Current HBV DNA assays make use of differing technologies and can ... beacons) that decrease the number of handling steps, reduce contamination, and increase throughput and the accuracy of quantification will further enhance the utility of these assays [2,5] Given the ... is the appearance of serum markers of HBV infection that establishes the diagnosis of the disease Of these, HBsAg is considered to be the sentinel marker for the confirmation of acute infection...
Ngày tải lên: 03/11/2012, 09:41