Porous biochar purification method from coconut shell by alkali roasting followed by leaching and its application as a lithium primary battery

Coconut shell is one of the potential biomass as carbon sources. Coconut shell is converted to charcoal through the carbonization process. The potential of charcoal from coconut shells can be synthesized into graphene. Graphene is a derivative of one of the carbon allotropes, namely graphite, where carbon is in the form of thin plates with sp2 orbitals arranged hexagonally. The process of making graphene which is coconut shell dried in the sun then pyrolysis into charcoal then mixed with activated carbon as a reducing agent at 600 ° C for 1 hour to produce graphene. The graphene produced is characterized by X-Ray Diffraction (XRD), Scanning Electron Microscope-Energy Dispersive X-Ray (SEM-EDX). The results by XRD analysis showed the resulting peaks were not sharp and slightly widened at the diffraction peaks at 24 ° and 44 °. The results of SEM-EDX analysis at 4000x magnification show the surface size and shape of the structure that is smaller, thinner and reduced buildup on the graphene structure. graphene that has been successfully synthesized was tested on a coin battery. The coin battery cathode which was replaced with graphene succeeded in turning on the light.

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Uultrastructure of Microtubules

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100094528 ◽

1972 ◽

Vol 30 ◽

pp. 252-253

Author(s):

Ariaki Nagayama

Keyword(s):

Fine Structure ◽

Cultured Cells ◽

Present Report ◽

Confluent Monolayer ◽

Purification Method ◽

Vinca Rosea ◽

L Cells ◽

Antimitotic Activity ◽

Monolayer Cultures ◽

Rapid Purification

Vinblastine(Vb) or vincristine, alkaloid derived from Vinca rosea is known for its antimitotic activity by regrouping of microtubules into paracrystalline form within the cells. A rapid purification method of vinblastine-induced microtubular paracrystals(PC) has provided us with a fresh and pure microtubular material demonstrating the presence of a labile ATPase associated with the PC. The present report is concerned with the fine structure of purified microtubules of mammalian cultured cells.Confluent monolayer cultures of L cells were incubated for 20hrs with 10-5 M Vb (donated from Shionogi Seiyaku & Co., Osaka, Japan).

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New purification method for vitamin A derived aging pigments

Planta Medica ◽

10.1055/s-0030-1264516 ◽

2010 ◽

Vol 76 (12) ◽

Author(s):

E Jee ◽

S Kim ◽

Y Jang

Keyword(s):

Vitamin A ◽

Purification Method

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Isolation of Human Fibrinogen and its Derivatives by Affinity Chromatography on Gly-Pro-Arg-Pro-Lys-Fractogel

Thrombosis and Haemostasis ◽

10.1055/s-0038-1645062 ◽

1990 ◽

Vol 63 (03) ◽

pp. 439-444 ◽

Cited By ~ 19

Author(s):

C Kuyas ◽

A Haeberli ◽

P Walder ◽

P W Straub

Keyword(s):

Gel Electrophoresis ◽

Affinity Purification ◽

Polyacrylamide Gel Electrophoresis ◽

Ease Of Use ◽

Terminal Sequence ◽

Purification Method ◽

Human Fibrinogen ◽

Isolation Methods ◽

One Step ◽

Complementary Binding

SummaryWith an immobilized synthetic pentapeptide GlyProArgProLys comprising the N-terminal sequence GlyProArg of the α-chain of fibrin, a new affinity method for the quantitative isolation of fibrinogen out of anticoagulated plasma was developed. The method proved to be superior to all known isolation methods in respect to ease of use and yield, since fibrinogen could be isolated in one step out of plasma with a recovery of more than 95% when compared to the immunologically measurable amounts of fibrinogen. Moreover the amounts of contaminating proteins such as fibronectin, factor XIII or plasminogen were negligible and the purity of the isolated fibrinogen was higher than 95% as measured by polyacrylamide gel electrophoresis. The clottability was 90% and more. Another advantage of this affinity purification method is the possibility to isolate fibrinogen quantitatively out of small plasma samples (<5 ml). Further, abnormal fibrinogen molecules, provided their complementary binding site for GlyProArg is preserved, may also be quantitatively isolated independent of any solubility differences as compared to normal fibrinogen. In addition fibrin(ogcn) fragments originating from plasmic digestion can be separated on the basis of their affinity to GlyProArg. The described affinity gel can be used more than 50 times without any loss of capacity.

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Use of Factor VIII in the Treatment of Hemophilia

Thrombosis and Haemostasis ◽

10.1055/s-0038-1655471 ◽

1962 ◽

Vol 07 (02) ◽

pp. 230-238 ◽

Cited By ~ 1

Author(s):

A Pavlovsky ◽

H Peterson ◽

G Casillas ◽

C Simonetti ◽

A Martinez Canaveri ◽

...

Keyword(s):

Factor Viii ◽

Tannic Acid ◽

Deae Cellulose ◽

Fibrinolytic System ◽

Purification Method ◽

Fraction I

SummaryThis publication describes the results obtained by treatment of haemophiliacs with factor VIII preparations isolated from Cohn fraction I by use of tannic acid, FI-O-Ta.The authors stress the rapidity of the disappearance of factor VIII after injection. Transfusions are generally well tolerated. One reaction of the pyrogen type has been observed and also a case of activation of the fibrinolytic system.A second purification method by means of chromatography on DEAE-cellulose is described.

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A Novel Method for the Rapid Purification of Human and Rat Fibrin(OGEN) Degradation Products in High Yields

10.1055/s-0038-1665826 ◽

1979 ◽

Author(s):

W. Nieuwenhuizen ◽

I. A. M. van Ruijven-Vermeer ◽

F. Haverkate ◽

G. Timan

Keyword(s):

Degradation Products ◽

Complete Separation ◽

Purification Method ◽

Amino Terminal ◽

Novel Method ◽

Rapid Purification ◽

The One ◽

High Yields ◽

Size Heterogeneity ◽

D Dimer

A novel method will be described for the preparation and purification of fibrin(ogen) degradation products in high yields. The high yields are due to two factors. on the one hand an improved preparation method in which the size heterogeneity of the degradation products D is strongly reduced by plasmin digestion at well-controlled calcium concentrations. At calcium concentrations of 2mM exclusively D fragments, M.W.= 93-000 (Dcate) were formed; in the presence of 1OmM EGTA only fragments M.W.= 80.000 (D EGTA) were formed as described. on the other hand a new purification method, which includes Sephadex G-200 filtration to purify the D:E complexes and separation of the D and E fragments by a 16 hrs. preparative isoelectric focussing. The latter step gives a complete separation of D (fragments) (pH = 6.5) and E fragments (at pH = 4.5) without any overlap, thus allowing a nearly 100% recovery in this step. The overall recoveries are around 75% of the theoretical values. These recoveries are superior to those of existing procedures. Moreover the conditions of this purification procedure are very mild and probably do not affect the native configuration of the products. Amino-terminal amino acids of human Dcate, D EGTA and D-dimer are identical i.e. val, asx and ser. in the ratgly, asx and ser were found. E 1% for rat Dcate=17-8 for rat D EGTA=16.2 and for rat D- dimer=l8.3. for the corresponding human fragments, these values were all 20.0 ± 0.2.

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Sustainable Concrete by Partially Replacing Coarse Aggregate Using Coconut Shell

Journal on Today s Ideas-Tomorrow s Technologies ◽

10.15415/jotitt.2014.21004 ◽

2014 ◽

Vol 2 (1) ◽

pp. 41-54 ◽

Cited By ~ 1

Author(s):

Damre Shraddha ◽

Firake Hitali ◽

Dode Pradeep ◽

Shrikant Varpe

Keyword(s):

Coarse Aggregate ◽

Coconut Shell ◽

Sustainable Concrete

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Coconut shell gasification numerical modeling in a downdraft reactor

10.26678/abcm.cobem2017.cob17-0872 ◽

2017 ◽

Author(s):

Monique Abreu ◽

Carolina Locatelli Vago ◽

Filipe Arthur Firmino Monhol ◽

Carlos Eduardo Silva Abreu ◽

Luiz Rafael Resende da Silva

Keyword(s):

Numerical Modeling ◽

Coconut Shell

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Flexural Resistance of Steel-Coconut Shell Concrete-Steel Composite Beam with Normal and J-Hook Shear Studs

International Journal of Integrated Engineering ◽

10.30880/ijie.2020.12.09.025 ◽

2020 ◽

Vol 12 (9) ◽

Author(s):

Lakshmi Thangasamy ◽

◽

Gunasekaran Kandasamy ◽

Keyword(s):

Concrete Strength ◽

Steel Plates ◽

Coconut Shell ◽

Core Material ◽

River Sand ◽

Concrete Core ◽

Conventional Concrete ◽

Moment Capacity ◽

The Moment ◽

Core Concrete

Many researches on double skin sandwich having top and bottom steel plates and in between concrete core called as steel-concrete-steel (SCS) were carried out by them on this SCS type using with different materials. Yet, use of coconut shell concrete (CSC) as a core material on this SCS form construction and their results are very limited. Study investigated to use j-hook shear studs under flexure in the concept of steel-concrete-steel (SCS) in which the core concrete was CSC. To compare the results of CSC, the conventional concrete (CC) was also considered. To study the effect of quarry dust (QD) in its place of river sand (RS) was also taken. Hence four different mixes two without QD and two with QD both in CC and CSC was considered. The problem statement is to examine about partial and fully composite, moment capacity, deflection and ductility properties of CSC used SCS form of construction. Core concrete strength and the j-hook shear studs used are influences the moment carrying capacity of the SCS beams. Use of QD in its place of RS enhances the strength of concrete produced. Deflections predicted theoretically were compared with experimental results. The SCS beams showed good ductility behavior.

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