QuantifoilMulti porous carrier network

describe

QuantifoilIt is a porous support membrane with precision arranged mesh holes of various sizes and shapes. Compared with ordinary porous carbon membranes, this support membrane exhibits better performance under transmission electron microscopy（TEM）Grid and low-energy electron point source microscope(LEEPS)Online applications have more advantages.QuantifoilThe geometric shape fixed by porous carbon film is convenient for transmission electron microscopy（TEM）Automated operation is basically not feasible for ordinary carbon films. This porous carbon support membrane has superior performance but slightly higher cost.QuantifoilCarbon supported membranes have a large pore surface area and are commonly used to reduce sample thickness and minimize distortion caused by membrane interference.QUANTIFOILThe thickness of the porous carbon film is about10-12nmThere are two types of holes, round and square, as well as multiple sizes to choose from.

QuantifoilCircular hole carbon support membrane

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QuantifoilCircular hole carbon support membrane（with circular holes）More suitable for low-temperature transmission electron microscopy(TEM)Because circular holes are more conducive to forming a uniformly thick ice layer. The choice of pore spacing depends on the required magnification and whether the support membrane imprint is inserted into the final image. If the membrane is inserted into the final image, image quality assessment is relatively easy because the membrane is much larger in power spectrum than an isolated ice layer. aperture2and1.2μmofQuantifoilCircular hole membrane can be used for30,000to40,000Magnify by multiple times. If a larger beam position tolerance or beam diameter is required(As in automatic image acquisition)Recommended for useQuantifoil R2/4When focusing on the edge of a small hole deeply imprinted in ice, rather than on a thin film adjacent to the hole, it is usually applicableR 2/1.

QuantifoilSquare pore carbon support membrane

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Having a smaller grid line width, suitable for transmission electron microscopy（TEM）Analysis. The thickness of the carbon film here is too thin to cover the grid spacing, nor can it affectXThe X-ray energy spectrum analysis area provides good support. This square hole film is suitable for films larger than7x7μmMesh particles are also useful. When you not only require good mechanical stability, but also the maximum opening area,Quantifoil S7/2Show the best geometrylearn

QuantifoilSquare pore carbon support membrane

number

Aperture μm

Strip width μm

Cycle μm

pass

R 0.6/1

0.6

1

1.6

circular hole

R1/1

1

1

2

circular hole

R1/2

1

2

3

circular hole

R 1/4

1

4

5

circular hole

R 1.2/1.3

1.2

1.3

2.5

circular hole

R 1.2/20

1.2

20

21.2

circular hole

R 2/1

2

1

3

circular hole

R 2/2

2

2

4

circular hole

R 2/4

2

4

6

circular hole

R 3/3

3

3

6

circular hole

R 3/5

3

5

8

circular hole

R 3.5/1

3.5

1

4.5

circular hole

R 5/10

5

10

15

circular hole

R 5/20

5

20

25

circular hole

R 6/6.5

6

6.5

12.5

circular hole

R 6/100

6

100

106

circular hole

R 10/5

10

5

15

circular hole

R10/10

10

10

20

circular hole

R 10/20

10

20

30

circular hole

R 17/5

17.5

5

22.5

circular hole

S 7/2

7

2

9

square

S35/5

35

5

40

square

S35/10

35

10

45

square