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Electron Microscopy Sciences

Specimen Preparation and Embedding Supplies

arrow13Filtration, Filters, Syringes, and Hypodermic Needles

arrow12Laboratory Filtration - Plastic Corning Brand

  • For Tissue culture and HPLC applications
  • Choice of membranes, variety of sizes

Membrane choices include:

  • Regenerated Cellulose (RC)
  • Polyethersulfone (PES)
  • Surfactant-free Cellulose Acetate (SFCA)
  • Nylon (NY)
  • "PTFE" Fluourocarbon Resin

Excellent chemical resistance, low protein binding, and the best DMSO compatibility

Technical Note, Typical Characteristics:

Filter RC PES SFCA NY "PTFE"
Medium Regenerated Cellulose HPLC certified & sterile Polethysulfone, Sterile Surfactant-free cellulose acetate, sterile Nylon, HPLC certified and sterile Fluouocarbon resin, HPLC certified & non-sterile
Applications Tissue culture & HPLC. Compatible with DMSO. Extra chemical compatibility & low protein binding. Choose 0.2µm pore size for sterile filtration and ultra cleaning; 0.45µm for particle removal and clarification Tissue culture. High throughput/flow rate. Choose 0.2µm pore size for sterile filtration and ultra cleaning. 0.45µm for particle removal and clarification Tissue culture. Lowest protein binding. Choose 0.2µm pore size for sterile filtration and ultra cleaning. 0.45µm for particle removal and clarification; and 0.8µm for coarse particle removal Tissue culture and HPLC. Low extractable, naturally hydrophillic. Choose 0.2µm pore size for sterile filtration and ultra cleaning. 0.4µm for particle removal and clarification HPLC. Most agressive solvents. Choose 0.2µm pore size for sterile filtration and ultra cleaning. 0.4µm for particle removal and clarification
Diameter 4, 15, 25mm 26mm 26mm 25mm 4, 5, 25, 50mm
Filter Area 0.07, 1.7, 4.8cm² 5.3cm² 5.3cm² 4.8cm² 0.07, 1.7, 4.8, 1.7cm²
Pore Size 0.2, 0.45µm 0.2µm 20.2, 0.45, 0.8µm 0.2, 0.45µm 0.2, 0.45µm
Hold-up Vol. 5, 10, 150 µl 100µl 100µl 150µl 5, 10, 100, 500µl
Housing Polypropylene Acrylic Acrylic Polypropylene Polypropylene
Temp. Limit 127°C (260.6°F) 50°C (127°F) 50°C (127°F) 127°C (260.6°F) 127°C (260.6°F)
Pressure Limit 87, 87, 87psi 87psi 87psi 87psi 87, 87, 87, 58psi
Conn. Inlet female locking luer
Outlet male slip luer
Inlet female locking luer
Outlet male slip luer
Inlet female locking luer
Outlet male slip luer
Inlet female locking luer
Outlet male slip luer
Inlet female locking luer
Outlet male slip luer

Syringe Filtersarrow12Syringe Filters

Syrings filters with high burst strength for assured performance. Manufactured to ISO 9002 and GMP standard and 100% integrity tested.

Syringe filter sizes include 4, 15, 25, or 26mm diameter to handle volumes ranging from 0.5 to 100 ml. The 50mm diameter "PTFE" syringe filter are ideal for protecting the vacuum line and pump. These disposable filter units are ideal for tissue culture media, buffer solution, stain solution, biological fluids and most other aqueous solutions and reagents that are used daily in the EM lab.

Pore size and membrane type are printed on every syringe and the filters are certified non-cytotoxic and non-pyrogenic. Sterile syringe filters are individually blister-wrapped in cases of 50. Non sterile syringe filters are packaged in cases of 50. The 50mm "PTFE" syringe filter is supplied in a case of 12.

Filter units with polypropylene housing:
Catalog # Membrane Diameter Pore Size Pack Price
67000 RC 4mm 0.2µm 50/pk 90.00 Add to Cart
67002 RC 15mm 0.2µm 50/pk 110.00 Add to Cart
67002-25 RC 25mm 0.2µm 50/pk 152.00 Add to Cart
67018 NY 25mm 0.2µm 50/pk 148.00 Add to Cart
67019 NY 25mm 0.45µm 50/pk 148.00 Add to Cart
67022-50* "PTFE" 50mm 0.2µm 12/pk 148.00 Add to Cart
67025-25 "PTFE" 25mm 0.45µm 50/pk 148.00 Add to Cart

* Not HPLC certified, but still sterile.

Filter with acrylic housing:
Catalog # Membrane Diameter Pore Size Pack Price  
67004 PES 28mm 0.2µm 50/pk 141.00 Add to Cart
67005 SFCA 28mm 0.2µm 50/pk 143.00 Add to Cart
67006 SFCA 28mm 0.45µm 50/pk 154.00 Add to Cart
67007 SFCA 28mm 0.8µm 50/pk 154.00 Add to Cart
67008* SFCA-PF 28mm 0.2µm 50/pk 165.00 Add to Cart

* Surfactant Free Cellulose Acetate with Pre-filter

Disposable Sterile Vacuum Filter Unitsarrow12Disposable Sterile Vacuum Filter Units

Vacuum filtration units fit standard threaded bottle tops. Designed for use on glass or polystyrene media bottles. The unit includes membrane filter, glass fiber pre-filter and graduated funnel of clear polystyrene with polyethylene neck adapter. Attaches to most popular 33 and 45mm diameter bottle's necks with standard GPI threads. Systems are individually packed, gamma irradiation sterilized and certified non-pyrogenic. Comes with tubing adapter that fits most vacuum hoses. Units are color coded by membrane type (CA: Orange; NYL: Red, CN: Blue; and PES: Yellow).

Choice of membrane media: Cellulose acetate (CA), for low protein binding. Nylon (NYL), for low extractable. Cellulose Nitrate (CN), for general purpose filtration. Or polyethersulfone (PES), for fast flow rates and low protein binding. Membranes come in 0.20, 0.22 or 0.45µm pore sizes. All four-type membranes are detergent-free, tissue culture compatible, and heat-sealed to the support grid to maximize flow rate, reduce foaming and protein denaturization. Ideal for filtration of tissue culture media, biological fluids, fixation buffers etc. (not for parenteral use.)

3. Complete Units

150 ml Funnel/150 ml Receiver with 50mm diameter membrane
Catalog # Pore Size Membrane Pack Price  
67045-11 0.22µm PES (Yellow) 12/cs 105.00 Add to Cart
67045-12 0.22µm CA (Orange) 12/cs 104.00 Add to Cart
67045-13 0.45µm CA (Orange) 12/cs 104.00 Add to Cart
250 ml Funnel/250 ml Receiver with 50mm diameter membrane
67046-11 0.2µm CN (Blue) 12/cs 109.00 Add to Cart
67046-12 0.22µm CA (Orange) 12/cs 113.00 Add to Cart
67046-13 0.45µm CA (Orange) 12/cs 109.00 Add to Cart
67046-14 0.2µm NY (Orange) 12/cs 130.00 Add to Cart
67046-15 0.22µm PES (Yellow) 12/cs 115.00 Add to Cart
500 ml Funnel/500 ml Receiver with 70mm diameter membrane
67047-11 0.2µm CN (Blue) 12/cs 185.00 Add to Cart
67047-12 0.22µm CA (Orange) 12/cs 192.00 Add to Cart
67047-13 0.45µm CA (Orange) 12/cs 192.00 Add to Cart
67047-14 0.2µm NY (Red) 12/cs 210.00 Add to Cart
67047-15 0.22µm PES (Yellow) 12/cs 185.00 Add to Cart
1000 ml Funnel/1000 ml Receiver with 90mm diameter membrane
67048-12 0.2µm CN (Blue) 12/cs 296.00 Add to Cart
67048-13 0.2µm NY (Red) 12/cs 280.00 Add to Cart
67048-14 0.45µm CA (Orange) 12/cs 280.00 Add to Cart
67048-15 0.22µm CA (Orange) 12/cs 275.00 Add to Cart
67048-16 0.22µm PES (Yellow) 12/cs 275.00 Add to Cart
2. Plastic 150 ml Tube Top Filter 50 mm Membrane Diameter

These tubes minimize unnecessary transfer by filtering directly into the centrifuge tube. Each case comes with two centrifuge tube stands. The polypropylene tube is supplied with an individually wrapped cap for storage. Individually packaged, sterile, certified non-pyrogenic.

Catalog # Membrane Tube size ml Pore Size µm Pack Price  
67043-22 CA 150/50 0.22 12/cs 99.00 Add to Cart
67043-45 CA 150/50 0.45 12/cs 104.00 Add to Cart
3. Plastic 115 ml Filter Unit 60 mm Membrane Diameter

These filter units have a low center of gravity and wide base for stability. They have a separate pour spout to remove filtered sample which minimizes contamination. Individually packaged, sterile, certified nonpyrogenic.

Catalog # Membrane Tube size ml Pore Size µm Pack Price  
67044-22 CA 115 0.22 24/pk 120.00 Add to Cart
67044-45 CA 115 0.45 24/pk 168.00 Add to Cart
Disposable Sterile Collecting Bottles4. Disposable Sterile Collecting Bottles

Disposable polystyrene bottles for the storage of media, buffers and other aqueous solutions. Easy grip sides facilitate handling. Plug seal cap provides an airtight seal and helps minimize the risk of contamination. Sterile, certified non-pyrogenic. Neck size 45mm.

Catalog # Graduation Range/Interval Pack Price  
64244-01 25 to 150 ml/25 ml 24/pk 113.00 Add to Cart
64244-02 50 to 250 ml/25 ml 24/pk 126.00 Add to Cart
64244-05 100 to 500 ml/50 ml 24/pk 172.00 Add to Cart
64244-10 100 to 1000 ml/50 ml 24/pk 180.00 Add to Cart
Disposable Sterile Vacuum Filter Bottle-Top Unit5. Bottle-Top Unit Only

Available in 33mm and 45mm neck sizes. Connector neck with unique polyethylene gasket ensures a positive seal between filtration unit and collecting bottle. Funnel has tubing adapter that fits most vacuum hoses. Units come individually packaged and are pre-sterilized by gamma irradiation, certified non-pyrogenic. Prefilters included.

Choice of membrane media: Cellulose acetate (CA), for low protein binding. Nylon (NYL), for low extractable. Cellulose Nitrate (CN), for general purpose filtration. Or polyethersulfone (PES), for fast flow rates and low protein binding. Membranes come in 0.20, 0.22 or 0.45µm pore sizes. All four-type membranes are detergent-free, tissue culture compatible, and heat-sealed to the support grid to maximize flow rate, reduce foaming and protein denaturization. Ideal for filtration of tissue culture media, biological fluids, fixation buffers etc. (not for parenteral use.)

Catalog # Funnel Pore Size Membrane Diameter Pack Price  
67050-51 150 ml 0.22µm CA (Orange) 33mm 48/cs 350.00 Add to Cart
67050-52 150 ml 0.22µm CA (Orange) 45mm 48/cs 350.00 Add to Cart
67050-54 150 ml 0.22µm PES (Yellow) 33mm 48/cs 350.00 Add to Cart
67050-55 150 ml 0.22µm PES (Yellow) 45mm 48/cs 340.00 Add to Cart
67050-56 150 ml 0.45µm CA (Orange) 33mm 48/cs 340.00 Add to Cart
67050-57 150 ml 0.45µm CA (Orange) 45mm 48/cs 340.00 Add to Cart
67051-51 500 ml 0.20µm NY (Red) 45mm 12/cs 130.00 Add to Cart
67051-52 500 ml 0.22µm CA (Orange) 33mm 12/cs 107.00 Add to Cart
67051-53 500 ml 0.22µm CA (Orange) 45mm 12/cs 120.00 Add to Cart
67051-56 500 ml 0.22µm PES (Yellow) 33mm 12/cs 120.00 Add to Cart
67051-57 500 ml 0.22µm PES (Yellow) 45mm 12/cs 120.00 Add to Cart
67051-58 500 ml 0.45µm CA (Orange) 33mm 12/cs 120.00 Add to Cart
67051-59 500 ml 0.45µm CA (Orange) 45mm 12/cs 120.00 Add to Cart
67052-52 1000 ml 0.22cm CA (Orange) 45mm 12/cs 142.00 Add to Cart
67052-54 1000 ml 0.22µm PES (Yellow) 45mm 12/cs 175.00 Add to Cart

Fiberglass Pre-filtersarrow12Fiberglass Pre-filters

Fiberglass pre-filters for use in Bottle Top and Vacuum Filtration Systems above. Recommended filter size dependant on apparatus used. The Pre-Filters are available in two sizes: 50mm and 70 mm diameters.

Catalog # Graduation Range/Interval Pack Price  
67070-50 50mm, for use with 150 ml & 250 ml Filter Funnels 96/pk 69.00 Add to Cart
67070-70 70mm, for use with 500 ml Filter Funnels 96/pk 82.00 Add to Cart

Centrifugal Filter Devices - Costar Brandarrow12Centrifugal Filter Devices - Costar Brand

Filter samples in microcentrifuges
Choice of cellulose or nylon membrane
For volume up to 500µl

Spin-X centrifuge tube filters utilize centrifugation for the filtering of small volumes. The unit consists of a polypropylene filter insert and a centrifuge tube. It handles volumes up to 500µl. they have a cellulose acetate membrane for aqueous solutions which is ideal for the removal of bacteria, particles, and cells from media. They are also effective for DNA removal from agarose or acrylamide gels.

Spin-X LC units have a nylon membrane for applications such as HPLC sample preparation. Both have retailed volume of <5µl, and withstand relative centrifugal force (RFC) to 16,000xG.

Spin-X - Cellulose Acetate
Catalog # Tube Size Pore Size Sterile Pack Price  
67030-60 2.0 ml 0.22µm Yes 96/cs 320.00 Add to Cart
67030-61 2.0 ml 0.22µm No 100/cs 250.00 Add to Cart
67030-62 2.0 ml 0.45µm Yes 96/cs 320.00 Add to Cart
67030-63 2.0 ml 0.45µm No 100/cs 250.00 Add to Cart
Spin-XLC - Nylon
67031-69 2.0 ml 0.22µm No 200/cs 452.00 Add to Cart
67031-70 2.0 ml 0.45µm No 200/cs 460.00 Add to Cart

Syringe Filters for use in Immunolabelingarrow12Syringe Filters for use in Immunolabeling

Cellulose Acetate membrane with 4mm diameter Poly-propylene housing with 7mm2 filter area. This 1ml syringe filter is very useful in sterilization of micro/immunlogical reagents, enzymes, antibodies and immunolabeling. Non-sterile, bulk pack: 100/pkg, 400/case, autoclavable.

67015 Immunolabeling Syringe Filter 100/pk 350.00 Add to Cart
67016 Immunolabeling Syringe Filter 400/cs 925.00 Add to Cart

Disposable Plastic Syringesarrow12Plastic Syringes; Disposable

These high quality disposable rubber piston syringes offer substantial savings. A lubricated synthetic rubber piston allows for a smooth draw while a positive stop prevents accidental pull out. Bold graduations are easily read and resist wipe-off. Syringes are ETO gas sterilized, latex and pyrogen free. All syringes are packaged in individual sterile strip packs.

arrow121. Syringes Without Needles - Rubber Piston
Cat. # Size and Description Pack    
72508 Centric Syringes 2.5 ml 100/pk 13.50 Add to Cart
72509 Centric Syringes 5 ml 100/pk 23.00 Add to Cart
72510 Eccentric Syringes 10 ml 100/pk 31.00 Add to Cart
72512 Eccentric Syringes 20 ml 100/pk 57.00 Add to Cart
72513-LS Eccentric Syringes 30 ml 50/pk 58.00 Add to Cart
72513-LL Centric Syringes 30 ml 50/pk 54.00 Add to Cart
Syringes With Mounted Needles - Rubber Pistonarrow122. Syringes With Mounted Needles - Rubber Piston
Cat. # Size x Needle Gauge x length Pack    
72515 Syringe with Needle, 1ml 25G x 5/8 " 100/bx 30.00 Add to Cart
72517 Syringe with Needle, 5 ml 21G x 1½" 100/bx 40.00 Add to Cart
72518 Syringe with Needle, 10 ml 21G x 1½" 100/bx 47.00 Add to Cart

arrow123. All Plastic Syringes Without Needles

These syringes are latex free; contain no rubber, no silicone oil or styrene. They are the choice for any situation needing an inert, hypoallergenic syringe. Because of their purity, they are indicated for IVF, embryo transfer, chromatography and many laboratory procedures. Manufactured only from laboratory grade polypropylene and polyethylene, these unique plastic syringes have a positive safety stop to prevent accidental spills. These syringes are individually sterile strip packed.

Cat. # Size and Description Pack    
72520 All Plastic Syringe, 1cc Centric 100/bx 25.00 Add to Cart
72522 All Plastic Syringe, 5cc Luer slip, Centric 100/bx 25.00 Add to Cart
72524 All Plastic Syringe, 10cc Luer Slip, Eccentric 100/bx 32.00 Add to Cart
72526 All Plastic Syringe, 20cc Luer Slip, Eccentric 100/bx 68.00 Add to Cart
72528 All Plastic Syringe, 30cc Luer Slip, Eccentric 50/bx 60.00 Add to Cart
72529 All Plastic Syringe, 50cc Luer Slip, Eccentric 30/bx 46.00 Add to Cart

Hypodermic Needlesarrow12Hypodermic Needles

Sterile. Disposable. Plastic. Transluscent Hub. Surgical Stainless. Color Coded.

72530 Hypodermic Needle, 18G x 1" 100/bx 13.50 Add to Cart
72532 Hypodermic Needle, 19G x 1" 100/bx 13.50 Add to Cart
72534 Hypodermic Needle, 20G x 1" 100/bx 13.50 Add to Cart
72536 Hypodermic Needle, 21G x 1" 100/bx 13.50 Add to Cart
72538 Hypodermic Needle, 22G x 1" 100/bx 13.50 Add to Cart

Syringe Capsarrow12Caps for Syringes

One size fits-all syringe caps that can be used with either a luer slip or luer locking syringe tip. These tips make the syringes suitable for usage as embedding media storage vessels. 

72500-05 Caps for Syringes 500 23.00 Add to Cart
72500-10 Caps for Syringes 1000 44.00 Add to Cart

arrow14Puritan® Wooden Products

Wooden Sticks; Tongue Depressors arrow10Wood Applicators

These sticks are made from closed-grain Northern White Birch. This selective wood provides a smooth, splinter-free finish with good tensile strength. In addition to medical uses, these sticks are ideal for spreading ointments and salves, stirring and mixing etc.

72300 Wood Applicator, 6"x½" 1000/bx 12.00 Add to Cart
72303 Wood Applicator, 12"x1/8" 500/bx 22.75 Add to Cart
Wooden Sticks; Tongue Depressors arrow10Wooden Sticks; Tongue Depressors

These sticks are made from close-grained northern white birch because of its ability to provide a smooth and polished surface. Used for mixing, stirring, or scraping epoxy resins.

72320 Wooden Sticks, 5½"x5/8" 500/bx 14.00 Add to Cart
72322 Wooden Sticks, 4½"x3/8" 1000/bx 16.50 Add to Cart
Wooden Applicators Sticks, Orange SticksWooden Applicators Sticks, Orange Sticksarrow10Wooden Applicators Sticks, Orange Sticks

Manufactured from closed-grain Northern White Birch these sticks are ideal for use in specimen transfer, as a mixing rod, and for general laboratory applications.

Orange Sticks are 7 inches long and 5⁄32" diameter, choice of beveled ends.

72304-10 Double Bevel Both ends Orange Stick 100/pk 9.00 Add to Cart
72304-30 One Single Bevel, one Double Bevel End Orange Stick 100/pk 9.00 Add to Cart
Cotton Tipped ApplicatorsCotton Tipped Applicatorsarrow10Cotton Tipped Applicators

Medical Quality: The cotton is carded, spun, and applied in an ISO 9002 Registered facility to assure you consistent quality.

Handy Vial Packs: 3" (8cm) wooden shaft, small-tipped applicators come pre-packed in a plastic-capped vial, a handy way to keep a supply of swabs available anytime on the bench top. Packed 100 per vial

72310 Cotton Tipped Applicator, Wooden Shaft,
Single End, 6" x 1⁄12", Regular Tip. Non Sterile 100/pk
100/pk 1.95 Add to Cart
72310-10 Same as above 10 pk/lot 18.00 Add to Cart
72310-S Same as 72310 but Sterile 10x100/pk 98.00 Add to Cart
72307 Handy Vial Pack,100/vial 10Vials/pk 24.00 Add to Cart
Cotton Tipped Applicatorsarrow10Industrial Cleaning Applicators:

6" Cotton Tipped Applicators, Choose from different cotton tipped sizes. Tips are specially processed to resist tears and pulls and leave your cleaning environment virtually lint-free. Available with a wooden shaft or a polypropylene shaft.

72308 Double Tips. Tapered Tip 3⁄16" Dia. Tapering to 1⁄32"Dia. x5⁄8:"L, Regular Tip 3⁄16"W x5⁄8"L. Wooden Shaft 100/pk 8.25 Add to Cart
72308-05 Cotton Tipped Applicator, Double end 5 bx/lot 36.00 Add to Cart
72309 Large Tip 15⁄64" Dia. x 11⁄16"L. Wooden Shaft 5x100/pk 10.50 Add to Cart
72306 Anti-Static, Lint-Free. Regular Tip 15⁄64" Dia.x 11⁄16"L. Polypropylene Shaft. 10x100/pk 32.00 Add to Cart
Foam Tipped Applicatorsarrow10Foam Tipped Applicators

Tips are made from shred-resistant, 100% urethane foam with 100PPI porosity. Except where wood is noted, all shafts are polypropylene.

Newly introduced PurSwab Popule, which is filled with 91% isopropyl alcohol and 9% deionized water. Simply squeeze the handle to break the patented seal and allow liquid to flow to the foam head.

72317 Foam Tipped Applicator, Wooden Shaft. Tip 5⁄8"Dia x 1"L 50/pk 10.00 Add to Cart
72314 5" Shaft, Rectangular Foam Tip 11⁄16"W x 7⁄8"L, Polypropylene Shaft 50/pk 20.00 Add to Cart
72315 6" Shaft Arrow End Tip 5⁄8"Dia x 7⁄8"L 50/pk 11.50 Add to Cart
72312 6"Wooden Shaft, Tip 3⁄8"Dia x 13⁄16"L. Foam-over-Cotton Tip 50/pk 12.25 Add to Cart
72330 Popule, 4½" Self-Saturating Foam Swab with 91% Isopropanol in DI Water 50/pk 21.00 Add to Cart
Chemical Resistant Applicatorsarrow10Chemical Resistant Applicators

The tips on these applicators are specially designed to withstand many of the chemicals and solutions commonly use in labs and clean rooms. Tips are resistant to deterioration – they won’t swell or break apart.

72325 6" Wooden Shaft, Foam over-Cotton. Tip 3⁄16"Dia x 15⁄16" L 50/pk 17.00 Add to Cart
72326 6" Polypropylene Shaft, Foam-over-Cotton Tip 3⁄8"Dia x 15⁄16" 50/pk 17.00 Add to Cart
Anti-Static Foam Tipped Applicatorarrow10Anti-Static Foam Tipped Applicator:

Choose from swabs that feature an antistatic foam head – or swabs with completely static-free construction. Static-dissipative swabs attract dirt and dust for easy cleaning, while reducing and dissipating static electricity. Antistatic properties will not decay over time. Swabs meet all industry standards and requirements, including ASTM-D257 and Federal test method 4046, standard #101C.

72316 6" Wooden Shaft, Anti-Static Foam-over-Cotton. Tip 3⁄8"Dia x 13⁄16"L 50/pk 13.00 Add to Cart
72318 6" Polypropylene Shaft, Anti-Static, Foam-over-Cotton Tip 3⁄16"Dia x 15⁄16"L 50/pk 17.00 Add to Cart

Wooden Picksarrow12Wooden Picks

They are round and double tapered; used for cleaning pole pieces and parts of the EM. Also used for oreinting the specimen during the embedding stage.

72340 WoodenPicks 100/bx 12.50 Add to Cart

Gel Electrophoresis and X-ray Autography arrow13arrow13