Nanocs provides various single layer graphene and graphene oxide products for your research use. These graphene products have been processed with multi step chemical and physical processes to ensure high quality.
Nanocs also provides various surface modified graphene and graphene oxide products with a wide range of specifications to suit different applications.
Product Specifications:
Composition: Single layer graphene oxide in aqueous solution, 2~5 mg/mL graphene oxide;
Flake Size: 0.5~5 microns;
Thickness: 1.1 nm. Single atomic layer over 80%;
Purity: Carbon contents around 75%, oxygen contents 35%;
Ethoxy or methoxyl silane functionalized polyethylene glycol, silane PEG (PEG-Si) is a surface reactive PEG derivative that can be used to modify glass, silica and other surfaces via the reaction between hydroxyl group and ethoxyl/methoxyl silane. Pegylation can greatly suppress the non-specific binding of charged molecules to the modified surfaces. And they have wide applications for medica device, biomems or biocompatible material development.
Physical Properties:
Off-white/white solid or viscous liquid depends on molecule weight;
Soluble in regular aqeous solution as well as most organic solvents;
Storage Conditions:
Store at -20 0C, desiccated. Silane PEG tends to hydrolyze from moisture. Avoid frequent thaw and frozen.
Reaction Procedures:
Generally, silane PEG is first dissolved in a mixture of ethanol/water solution, then allow the solution to contact with oxidized glass or silica surface for 30 min to 2 hours. Under this condition, silane PEG should bind to the material covalently.
Materials Required:
Pegylation solution: Ethanol/water (w/w, 95%/5%);
Silane PEG stock solution, 10~50 mg/mL in pegylation solution, prepare in fresh.
Washing solution: Distilled water.
Reaction Steps:
1. Dissolve targeted materials in Pegylation buffer.
2. Add silane PEG stock solution to the targeted conjugation materials with the final concentration keep at least 10 mg/mL. 10~50 molar excess of silane PEG needed for optimal conjugation;
3. Allow mixture agitates at room temperature for 30 min at room temperature or 2 hours at 4 -20 0C.
4. Wash out unreacted materials either by distilled water.
Nanocs SnapLinkTM pegylated succinimidyl cyclohexane Maleimide (SMCC) amine is a heterobifunctional crosslinker that can react with sulfhydryl and amine reactive groups, such as NHS ester. This crosslinker contains a sulfhydryl reactive maleimide group and a primary amine group bridged with PEG arm. The hydrophilic polyethylene glycol (PEG) spacer arm imparts water solubility that is transferred to the crosslinked molecules , thus reducing aggregation of labeled proteins in solution. The PEG spacer arm also gives the cyclohexane maleimide PEG amine a long and flexible structure to minimize steric hindrance for its reaction to other molecues. Compared to other maleimide NHS ester, SMCC has higher stability in aqueous solution because of its cyclohexane bridge. Maleimide group reacts with available thiol or sulfhydryl at pH 6.5~7.5 to form stable thioether bonds.
Physical Properties:
Appearance: Off-white/white solid or semi-solid;
Reactivity: Reactive to thiols and activitated carboxylic groups.
Soluble in DMF or DMSO;
Storage Conditions:
Store at -20 0C, desiccate. Avoid frequent thaw and freeze.
1,2-Distearoyl-sn-Glycero-3-Phosphoethanolamine (DSPE) and NBD (nitrobenzofurazan) conjugated Polyethylene Glycol, DSPE PEG NBD is a fluorescent phospholipid PEG conjugate that can be used as lipid membrane probe. NBD has excitation/emission wavelength at 460 nm/534 nm.
Physical Properties:
Solid powder;
Soluble in hot water;
Storage Conditions:
Store at -20 0C, dessiccate. Protect from light. Avoid frequent thaw and freeze.
Nanocs methyl functional gold nanoparticles were made from monodispersed gold nanoparticles with narrow size distribution (<15%). Me groups were derived from gold nanoparticle suface via polyethylene glycol chain. PEG linker offers highly stable gold particle solution and is useful for generating various gold nanoparticle probes to detect various biomolecules in SEM, TEM, light microscopy and blotting.
ITO (Inidum Tin Oxide) and FTO (fluorine doped tin oxide) Coated Glass Slides
ITO (Indium Tin Oxide) and FTO coated glass slides provided from Nanocs were made by coating ITO or FTO to one side of soda lime glass. These ITO and/or FTO coated glass, also called transparent conductive glass (TCO), come with different surface resistivity from 5 ohm/sq to 100 ohm/sq, with thickness from 0.5 mm to 2.2 mm. ITO and FTO coated glass has been used in LCD/OLED devices and many other devices requiring high electrical conductivity and good optical transmission. Our ITO/FTO coated glass has excellent surface roughness around +-5 nm. Thickness of our ITO or FTO coating ranges from 50 nm to 700 nm depends on their surface resistivity. Optical transmission of these ITO coated glass is over 85% in the visible range.
Nanocs ITO/FTO Glass Specifications:
Surface resistivity: 5~100 ohm/sq, see individual product label;
Glass thickness: 0.55 mm, 1.1 mm or 2.2 mm;
ITO thickness: 30~600 nm depends on ITO surface resistivity:
Optical transmission: 83% to 90%;
ITO glass size: 1 cm to 10 cm, customer size available upon request.
Surface functional agarose beads from Nanocs have uniform size in the range of 50~150 microns. These activated beads have multiple functional groups that can be used to attached various bio-ligands covalently to the bead surface. Covalently linked ligands offer high stability and are suitable for various biomolecule purification, capturing and assay. Nanocs surface modified agarose beads provide more choices than any other companies in this field. Customer conjugation and modification is available upon request.
Specifications:
Functional group density: 25~40 umol/mL gel;
Loading density: 5~25 mg BSA/mL gel;
Composition: Suspension in aqueous solution, 20% ethanol;
