MAXTAFORM GRIDS FOR TEM
These grids are electro-formed which results in particularly
clean edges. The high grade grids have thinner bars and greater
openings. The standard range CU and the high grade Cu/Rh
usually are available ex-stock. Standard range Ni grids and
high grade Au grids are available on indent.
denotes grid shown
MAXTAFORM High Grade Range: Square mesh grids |
Mesh (bar/") |
Copper/Rhodium |
Gold |
Technical data (µm) |
| Pitch | Bar | Hole |
| 100 |
GCu-Rh100 AUD36.00 /vial/100
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see Gilder grids on G4 |
254 |
41 |
209 |
| 150 |
GCu-Rh150 AUD36.00 /vial/100
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see Gilder grids on G4 |
165 |
34 |
131 |
| 200 |
GCu-Rh200 AUD36.00 /vial/100
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see Gilder grids on G4 |
127 |
24 |
101 |
300  |
GCu-Rh300 AUD36.00 /vial/100
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GMAu300 AUD32.00 /vial/25
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84 |
23 |
60 |
| 400 |
GCu-Rh400 AUD36.00 /vial/100
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see Gilder grids on G4 |
63 |
20 |
42 |
denotes grid shown
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SYNAPTEK™ GRIDS, NOTCH, SINGLE SLOT
These ultra-rigid, single slot grids are made of special Beryllium-Copper alloy. Thickness 100µm (0.1mm), diameter 3.05mm. They offer excellent stability for coating with support film. The standard 2 x 1mm oval slot grids are contamination free and re-usable after cleaning. A notch is stamped on one side of the grid to allow easier handling with tweezers.
GS2010-NOT Synaptek grids, notch, 2 x 1mm slot AUD55.00 /vial/100
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GRIDS WITH SPECIMEN SUPPORT FILMS
Supplied in a box, usually from stock, on 150, 200 and 300 mesh copper or gold grids. We have introduced a third film type and renamed the second one, giving a more accurate description. Catalogue numbers for the first two remain unchanged.
Formvar film, suffix F: A thin film of pure Formvar resin, 30 - 75nm.
Formvar with carbon coating, suffix C, ~5nm: This film has a moderately thin layer of carbon which stabilises the films quickly under an electron beam. The most universally used support film grids.
Formvar with heavy carbon coating, suffix CH, 15-25nm: This film is particularly strong and stable. The Formvar may be dissolved - see user note. This film provides greatest stability and strength. For highest magnifications of particulate matter these substrated grids, with the Formvar removed, show very little intrinsic structure.
User note - How to select a substrated grid
User note - Heavy carbon on Formvar
QUANTIFOIL support films/standards on page S2
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LACEY SUPPORT FILM GRIDSA lacey network support film. The holes in the lacey support film vary in size from less than a quarter micron to more than 10 microns making them ideal for any type of specimen. Lacey support films are extremely strong and withstand vigorous specimen preparation treatment. The specimen material is supported by the film network but lies across or protrudes into the holes of the mesh. This allows high definition imaging without the effects of underlying support material. Lacey films can be used for specimens ranging from large crystals and other particulate material to virus particles. Smaller particles, such as viruses or bacteria, tend to adhere around the inner edges of the holes, an ideal situation for high resolution microscopy. Lacey films are also ideal for selected area electron diffraction imaging.
GSCU300FL Lacey Formvar/ carbon on 300 mesh Cu AUD108.00 /pk/25
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GSCU300FL-50 Lacey Formvar/ carbon on 300 mesh Cu AUD162.00 /pk/50
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GSCU300FL
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SILICON NITRIDE SUPPORT FILMS
We can also supply:
Hydrophobic and hydrophilic silicon nitride membrane surfaces.
50nm Silicon nitride membranes have been modified using Atomic Layer-Deposited (ALD) techniques to change their surface properties. Depending on the process used, both hydrophobic and hydrophilic substrates have been created with the following advantages:
Choice between low and high surface energies
Smooth and conformal substrates
Enhanced wetting and biocompatibility (hydrophilic)
No need for plasma treatment of surface prior to cell growth
Hydrophobic coating offers novel platform for deposition and growth of nanomaterials
These coatings are available on 50nm silicon nitride membrane with a window size of 0.5 x 0.5mm on a 200µm silicon frame with a diameter of 3mm, compatible with all standard TEM grid holders.
Please ask if you have a requirement for these special support films.
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Tomography type SiN support film
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HOLEY SUPPORT FILMS
Large number of small holes in a Formvar film stabilised with carbon.
GYCU200 Holey F/C support film on 200 mesh copper grids AUD150.00 /pk/25
stock?
GYCU300 Holey F/C support film on 300 mesh copper grids AUD150.00 /pk/25
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GYCU200 Magnification is about 80k
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C-FLAT™ HOLEY CARBON GRIDS
C-flat™ is an ultra-flat, holey carbon-coated TEM support grid for transmission electron microscopy (TEM). C-flat™ products are fully specified by 4 parameters: the hole diameter and pitch of the holey carbon film, the material type and mesh size of the grid.
They are manufactured without plastics, are clean upon arrival and the user has no residue to contend with.
Made with patent pending technology, C-flat™ provides an ultra-flat surface that results in better particle dispersion and more uniform ice thickness. Patterning is done using deep-UV projection lithography, ensuring the most accurate and consistent hole shapes and sizes down to submicron features. The precise methods by which C-flat™ is manufactured eliminate artefacts such as excess carbon and edges around holes.
Applications
C-flat™ holey carbon grids provide the ideal specimen support to achieve high resolution data in cryo-TEM making them an ideal choice for single particle analysis, cryo electron tomography and automated TEM analysis.
Cryo-electron tomography (cryoET) and Single Particle Analysis ( SPA ):
The ultra-flat surface of C-flat™ leads to even ice thickness and uniform particle distribution within the hole areas. This optimal particle distribution results in superior data being collected as compared with other holey support films. 2µm hole sizes are standard but custom hole sizes are available so C-flat™ can accommodate the common magnifications used for quantitative TEM analysis.
Automated TEM:
C-flat™ provides a regular array of analysis sites compatible with automated data collection software such as Leginon. This compatibility, in combination with the more uniform ice thickness and particle distribution, results in more high-quality target sites per grid.
The multi hole grid has a staggered pattern of six features consisting of three circle patterns of 1 micron, 1.4 micron and 2 micron diameter and three ellipse patterns of 1 x 4 microns, 1.4 x 5.6 microns and 2 x 8 microns.
Other sizes are available.
C-FLAT™ HOLEY CARBON GRIDS - pack sizes and hole size combinations available
GYCU200H1 C-flat™ holey carbon grids, 200 mesh Cu, 1µm holes AUD345.00 /vial/25 10% discount for 4
stock?
GYCU200H4 C-flat™ holey carbon grids, 200 mesh Cu, 4µm holes AUD318.00 /vial/25 10% discount for 4
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GYCU200HM C-flat™ holey carbon girds, 200 mesh Cu, multi holes AUD337.00 /vial/25 10% discount for 4
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C-flat™ holey carbon grid

[click to enlarge]

[click to enlarge]
Enlarged hole patterns
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GRAPHENE
Graphene is a single atomic layer
of carbon atoms, tightly packed
in a two-dimensional honeycomb
lattice. This novel material is
atomically thin, chemically inert,
consists of light atoms and
possesses a highly ordered
structure. Graphene is electrically
and thermally conductive and is
the strongest material ever
measured. These remarkable
properties make graphene the
ideal support film for electron
microscopy.
Applications
Direct imaging of soft and hard
nanomaterials
Biodevices
Single molecule gas detection
Graphene nanoribbons
Integrated circuits
Transparent conducting electrodes
Ultracapacitors
Elemental analysis by FT-IR reveals that the
synthesised graphene sheets are free of
detrimental oxygen functionalities. The FT-IR
spectrum of synthesised graphene is similar to that
of highly oriented pyrolytic graphite (HOPG).
The
ultrahigh-quality graphene produced by the
substrate-free gas-phase method has enabled
the unsurpassed TEM imaging of organic molecules
and the interfaces between soft and hard
nanomaterials. The pure and highly-ordered sheets
were used as a near-invisible support film to directly
image the atoms in a gold nanoparticle and its
surrounding citrate coating. The results showed
that the synthesised graphene can be used to directly
observe nanoparticles functionalised with a diverse
range of molecular coatings, such as proteins and
DNA.
GF1200 Graphene in ethanol, 0.1mg in 1mL AUD125.00 /0.1mg
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GF1205 Graphene powder, synthesised AUD891.00 /1mg
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GFCCU200 Lacey carbon with graphene coating, on 200 mesh Cu grid AUD24.00 /ea 10% discount for 5
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GFCCU300 Lacey carbon with graphene coating, on 300 mesh Cu grid AUD24.00 /ea 10% discount for 5
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GFCNI200 Lacey carbon with graphene coating, on 200 mesh Ni grid AUD25.00 /ea 10% discount for 5
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GFCNI300 Lacey carbon with graphene coating, on 300 mesh Ni grid AUD25.00 /ea 10% discount for 5
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TEM image of graphene on lacey carbon

Atomic-resolution image of a graphene sheet

Atomic-resolution image of a gold nanoparticle and its surrounding citrate capping agent on a synthesised graphene support film
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G5

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