NEST PC Conical Erlenmeyer Flasks

Glassware performance in a contamination-free, single-use shaker flask. Polycarbonate bottle meets the USP Class 6 Standard with high transparency, strong impact resistance and oxidation resistance, and can withstand temperatures up to 121ºC. There’s a scale made by injection molding on the flask body to facilitate volume observation.

Nest Polycarbonate Conical Erlenmeyer Flasks are designed for mammalian suspension culture applications as well as bacterial & yeast culture.

Seal caps prevent contamination and evaporation. Ideal for long-term storage and transporting liquids.

Vent caps with 0.22 um hydrophobic membrane allow gas exchange without contamination (an oversized vent area in the cap improves gas exchange). Ideal for cell culture, fermentation, air-sensitive reactions, and preventing bacterial growth.

• Polycarbonate
• DNase/RNase free, no pyrogens
• Sterilized by E-Beam
• Individually packaged in sterile bags   

Erlenmeyer Flasks

Erlenmeyer Shaker Flasks are made of polycarbonate, PETG or styrene/butadiene (Jumbo Flasks only). The polypropylene screw caps are vented with 0.2µm membranes to increase air transmission and enhance cell growth. The mouth size conforms with the international SBS standard, for quick, secure connection to bioreactor equipment.

Polycarbonate flasks and Jumbo Fernbach flasks have baffled (ribbed) bottoms to provide increased oxygenation and mixing efficiency even at lower shaking speeds. All flasks, regardless of size, are individually wrapped and gamma sterilized to SAL 10-6, and they are free of RNase, DNase, pyrogen, endotoxins and human DNA.

Polycarbonate Flasks are autoclavable at 121°C and 15PSI for 30 minutes.

• Vented screw caps
• Flat or baffled bottoms
• Gamma sterile (SAL 10-6)
• Pyrogen-free and RNase/DNase free
• Individually wrapped 

NEST Cell Culture Inserts

• Innovative hanging design facilitates pipetting.
• Supplied in multiple well plates: 6-well, 12-well, 24well.
• PC membrane: low adsorption rate, reducing the loss of small molecular proteins and other compounds
• Transparent PET inserts permit sufficient optical transparency for visualization of cell outlines by phase contrast microscopy.
• Transparent PET membrane is easy to observe.
• The PC membrane is not easy to be torn or curled, and it is easy to operate when taking out the chamber.
• Compatible with most solvents used for fixing and dyeing.

Attention

• Attachment of cells grown on a permeable support (membrane) is sensitive to the initial seeding density, so the initial use should be inoculated with different density guarantee optimal growth;
• During the cultivation process, the liquid should be taken through the gap between the upper layer and the hole. When adding liquid, be careful and slow to avoid the damage of the membrane;
• Incubation of the permeable support in the medium prior to culturing the cells can improve cell attachment and distribution.

Guidelines

• Pre-equilibration: After added culture solution to the pores of the multi-well plate and inserted the insert, please placed it in the incubator for at least one hour or overnight.
• Fix and stain cells directly in the nest, and use a scalpel to cut the membrane for long-term storage. Before using please add culture solution to the pores of the multi-well plate, then insert the insert and add the culture solution which included cells to the insert.
• Before using please add culture solution to the pores of the multi-well plate, then insert the insert and add the culture solution which included cells to the insert.
• Pre-equilibration: After added culture solution to the pores of the multi-well plate and inserted the insert, please placed it in the incubator for at least one hour or overnight.
• Check the volume of the culture medium regularly and add fresh medium as needed.
• The cell layer can be directly fixed and stained in the nest using basic cytological methods. Note Avoid using solvents that dissolve the PC film.
• Fix and stain cells directly in the nest, and use a scalpel to cut the membrane for long-term storage.
• Before using please add culture solution to the pores of the multi-well plate, then insert the insert and add the culture solution which included cells to the insert.

Material

Multiple well plate or dish is made from PS.

Application

Permeable supports, also known as cell culture inserts, are an essential tool for the study of both anchorage-dependent and independent cell lines.

This product produces a cell culture environment that closely resembles an in vivo state. Allow polarized cells to carry out metabolic activities in a more natural manner because the cells feed both apically and basolaterally.

Application: co-culture, epithelial cell polarity, migration, invasion, transport and permeability studies.

NEST Transfer Cap for High Efficiency Erlenmeyer Flasks

Two-Way Liquid Transfer Cap
The two-way transfer cap is used along with a 2L, 3L or 5L shake flask to connect a liquid inlet tubing with the required device. The liquid transfer is achieved by connection of a peristaltic pump between the shake flask and the device. Upon completion of the transfer, the transfer cap can be replaced with a vent cap for culture.

Multifunctional Liquid Transfer Cap
Unlike the two-way liquid transfer cap, the multifunctional transfer cap can be directly placed in an incubator for culture after the liquid transfer is completed. It can reach a large air flux. The sampling part is composed of a sampling nozzle and a one-way valve, which can prevent the liquid from flowing backwards during the sampling process and ensure the aseptic sampling. The liquid inlet tubing is provided with a PTFE needle filter, which solves the issue of liquid remaining in the tubing during the feeding process.

Inverted Liquid Transfer Cap
The inverted transfer cap is used along with a 2L, 3L or 5L shake flask to connect a liquid inlet tubing with the required device. When liquid transfer is required, the liquid is transferred under gravity with the inverted shake flask.

Application

It is applicable to liquid transfer and culture during mass proliferation of bacteria and suspension cells.

Product Features

• Closed transfer reduces the risks of contamination during liquid transfer
• The cap is molded and connected in an integrated manner, reducing the risks of leakage and media residues
• A variety of tubing diameters are available and aseptic welding of liquid inlet tubing under normal conditions is supported
• High-quality materials and smooth inner wall of the tubing provide an excellent transfer performance
• Sterility level (SAL) is maintained at 10-6
• Endotoxin-free, and no ingredients of animal origin

ig BL21 (DE3)
Intact Genomics chemically competent BL21(DE3) E. coli cells are suitable for transformation and routine protein expression.

Specifications
Competent cell type:                Chemically competent
Derivative of:                            BL21(DE3)
Species:                                   E. coli
Format:                                    Tubes
Transformation efficiency:         1.0 x 109 cfu/µg pUC19 DNA
Blue/white screening:               Yes
Shipping condition:                   Dry ice

Quality Control
Quality control is performed following the production of each new lot of product to ensure that it meets the quality standards and specifications designated for the product. Each lot is repeatedly compared side-by-side with leading competitors to ensure our products outperform the competitor before product launching. 

Reagents Needed for One Reaction
BL21(DE3) Chemically Competent Cells:             50 µl
DNA (or pUC19 Control, 10 pg/µl):                         1 µl
Recovery Medium:                                                 1 ml

Contents & Storage
BL21(DE3) Competent Cells:                -80 °C
pUC19 Control DNA:                            -20 °C
Recovery Medium:                                  4 °C

Genomic Features
BL21(DE3) chemically competent cells have the following features:

• Widely used host background
• T7 Expression Strain
• Deficient in both lon (1) and ompT proteases
• Resistant to phage T1 (fhuA2)
• B Strain

Genotype
F-ompT hsdS(rB- mB-) gal dcm (DE3)

General Guidelines
Follow these guidelines when using BL21(DE3) chemically competent E. coli.

• Handle competent cells gently as they are highly sensitive to changes in temperature or mechanical lysis caused by pipetting.
• Thaw competent cells on ice, and transform cells immediately following thawing. After adding DNA, mix by tapping the tube gently. Do not mix cells by pipetting or vortexing.

Transformation Protocol

• Remove competent cells from the -80 °C freezer and thaw completely on wet ice (10-15 minutes).
• Aliquot 1-5 µl (1 pg-100 ng) of DNA to the chilled microcentrifuge tubes on ice.
• When the cells are thawed, add 50 μl of cells to each DNA tube on ice and mix gently by tapping 4-5 times. For the pUC19 control, add 1 µl of (10 pg/µl)
• DNA to a chilled microcentrifuge tube, prior to adding 50 µl of cells. Mix well by tapping.
• Incubate the cells with DNA on ice for 30 minutes.
• After 30 minute ice incubation, heat shock the cells at 42 °C for 45 seconds.
• Transfer the tubes to ice for 2 minutes.
• Add 950 µl of Recovery Medium or any other medium of choice to each tube.
• Incubate tubes at 37 °C for 1 hour at 210 rpm.
• Spread 50 μl to 200 μl from each transformation on pre-warmed selection plates.
• Incubate the plates overnight at 37 °C. 

ig 5-Alpha
Intact Genomics 5-alpha chemically competent E. coli cells are suitable for high efficiency transformation in a wide variety of applications such as cloning and sub-cloning. ig 5-alpha chemically competent cells are at least twice the transformation efficiency of the nearest competitor.

Number of Colonies per Transformation Test*

• Up to 2x higher efficiency than any competitor
• Exact same Genotype as NEB's 5-Alpha Cells

Specifications
Competent cell type:        Chemically competent
Derivative of:                    5-alpha
Species:                            E. coli
Format:                             Tubes
Transformation efficiency:      1 x 109 cfu/µg pUC19 DNA
Blue/white screening:           Yes
Shipping condition:               Dry ice

Quality Control
Quality control is performed following the production of each new lot of product to ensure that it meets the quality standards and specifications designated for the product. Each lot is repeatedly compared side-by-side with leading competitors to ensure our products outperform the competitor before product launching. 

Reagents Needed for One Reaction
ig 5-alpha chemically competent cells:  50 µl
DNA (or pUC19 Control, 10 pg/µl):           1 µl
Recovery medium:                                   1 ml

Contents & Storage
ig 5-alpha competent cells:   -80 °C
pUC19 control DNA:                 -20 °C
Recovery medium:                       4 °C

Genotype
80 (lacZ)M15 fhuA2 (argF-lacZ)U169 phoA glnV44 gyrA96 recA1 relA1 endA1 thi-1hsdR17

General Guidelines
Follow these guidelines when using ig 5-alpha chemically competent cells.

• Handle competent cells gently as they are highly sensitive to changes in temperature or mechanical lysis caused by pipetting.
• Thaw competent cells on ice, and transform cells immediately following thawing. After adding DNA, mix by tapping the tube gently. Do not mix cells by pipetting or vortexing.

Protocol

• Remove competent cells from the -80 °C freezer and thaw completely on wet ice (10-15 minutes).
• Aliquot 1-5 µl (1 pg-100 ng) of DNA to the chilled microcentrifuge tubes on ice.
• When the cells are thawed, add 50 μl of cells to each DNA tube on ice and mix gently by tapping 4-5 times. For the pUC19 control, add 1 µl of (10 pg/µl) DNA to a chilled microcentrifuge tube, prior to adding 50 µl of cells. Mix well by tapping. 4) Incubate the cells with DNA on ice for 30 minutes.
• After 30 minute ice incubation, heat shock the cells at 42 °C for 45 seconds.
• Transfer the tubes to ice for 2 minutes.
• Add 950 µl of Recovery Medium or any other medium of choice to each tube.
• Incubate tubes at 37 °C for 1 hour at 210 rpm.
• Spread 50 μl to 200 μl from each transformation on Pre-warmed selection plates.
• Incubate the plates overnight at 37 °C.

ig 10B
Intact Genomics ig 10B chemically competent cells (E. coli) are suitable for high efficiency transformation in a wide variety of applications such as cloning and sub-cloning. This derivative of DH10B provides the highest efficiency in the industry.

• Most efficient chemically competent cells in the industry (up to 10X more efficient!)
• May easily be used in place of NEB 10-Beta, TOP10 from Invitrogen or other common brands
• Significantly more affordable

Specifications
Competent cell type:                Chemically competent
Derivative of:                            DH10B
Species:                                   E. coli
Format:                                    Tubes
Transformation efficiency:         â¥1.0 x 1010 cfu/µg pUC19 DNA
Blue/white screening:               Yes
Shipping condition:                   Dry ice

Quality Control
Quality control is performed following the production of each new lot of product to ensure that it meets the quality standards and specifications designated for the product. Each lot is repeatedly compared side-by-side with leading competitors to ensure our products outperform the competitor before product launching. 

Reagents Needed for One Reaction
ig 10B chemically competent cells:     50 µl
DNA (or pUC19 Control, 10 pg/µl):          1 µl
Recovery medium:                                  1 ml

Contents & Storage

1. ig 10B competent cells: -80 °C
2. pUC19 control DNA: -20 °C
3. Recovery medium: 4 °C

Genomic Features
ig 10B (DH10B derivative) chemically competent cells have the following features:

• 80lacZM15 marker provides α-complementation of the β-galactosidase gene with blue/white screening
• mcrA genotypic marker and the mcrBC, mrr deletion allows for cloning DNA that contains methylcytosine and methyladenine

Genotype
F â mcrA (mrr-hsdRMS-mcrBC) endA1 recA1 80dlacZM15 lacX74 araD139 (ara, leu)7697 galU galK rpsL (StrR) nupG -

General Guidelines
Follow these guidelines when using ig 10B chemically competent E. coli.

• Handle competent cells gently as they are highly sensitive to changes in temperature or mechanical lysis caused by pipetting.
• Thaw competent cells on ice, and transform cells immediately following thawing. After adding DNA, mix by tapping the tube gently. Do not mix cells by pipetting or vortexing.

Protocol

• Remove competent cells from the -80 °C freezer and thaw completely on wet ice (10-15 minutes).
• Aliquot 1-5 µl (1 pg-100 ng) of DNA to the chilled microcentrifuge tubes on ice.
• When the cells are thawed, add 50 µl of cells to each DNA tube on ice and mix gently by tapping 4-5 times. For the pUC19 control, add 1 µl of (10 pg/µl) DNA to a chilled microcentrifuge tube, prior to adding 50 µl of cells. Mix well by tapping.
• Incubate the cells with DNA on ice for 30 minutes.
• After 30 minute ice incubation, heat shock the cells at 42 °C for 45 seconds.
• Transfer the tubes to ice for 2 minutes.
• Add 950 µl of Recovery Medium or any other medium of choice to each tube.
• Incubate tubes at 37 °C for 1 hour at 210 rpm.
• Spread 50 µl to 200 µl from each transformation on Pre-warmed selection plates.
• Incubate the plates overnight at 37 °C.

VitroINK® Bioinks

Ready-to-use bioinks for 3D bioprinting

VitroINK® are ready-to-use, xeno-free (animal origin-free) bioink system either unmodified or modified with either RGD, Collagen-memetic, IKVAV, or YIGSR peptides or with Matrix Metalloproteinases (MMP) for biodegradable bioink.

VitroINK® is a family of the ready-to-use, xeno-free tunable bioink system that requires no UV,  no temperature/pH curing, or chemical cross-linking. The system is ready-to-use at room temperature, neutral in pH, transparent, and has excellent visibility after printing and cell culture. Due to the unique shear-thinning and rapid recovery mechanical property, VitroINK® can maintain the printed structure without UV or other special curing methods. Adding cell culture medium after printing can further stabilize the printed structure and support cell growth. Cells can be pre-mix with VitroINK® using our VitroINK® Mixing Kit for mixing ratios at 3:1 or 10:1. Different versions of VitroINK® may incorporate multiple biological functional ligands to promote cell attachment, cell-matrix interactions, cell proliferation, motility/migration and differentiation for many different applications.

Specifications

• Xeno-free tunable modified bioink.
• Ready-to-use at room temperature
• No UV, temperature/pH curing, or chemical cross-linking required
• Neutral pH
• Transparent. Excellent visibility after printing and cell culture
• Pre-mix with cells using the included VitroINK® Mixing Kit
• Ships room temperature. Store at 2-8°C
• Size: 3 mL

TheWell products are never to be shipped to residential addresses. This decision has been made to safeguard the improper use and application of these products, particularly in the case of injectables and cell therapy treatments. TheWell has the right to refuse any orders that deem unfit use of their products or violate TheWell’s Terms of Use.   

TheWell products are sold for Laboratory Research Use Only, Not For Diagnostic or Therapeutic use, and are not to be administered to humans.

To ensure a seamless shopping experience, please provide a non-residential shipping address during checkout where your order can be safely received and stored.

For any singular Distributor customer order/sale price of over $5,000 there will be no return allowed. For any order of $0-$4,999 Distributor may cancel/return any or all Products with a 15% restocking fee within 30 days after delivery of products to the customer by Distributor. After 30 days from receipt of the product from the customer, there will be no return allowed.

VitroINK® 10:1 Mixing Component Pack
 
Single-use components for 10:1 mixing ratio for VitroINK® Mixing Kit. DISPENSER NOT INCLUDED

The VitroINK® 10:1 Mixing Component Kit includes a 1 mL syringe, connector and mixing head to replace the one-time-use components in the full VitroINK® Mixing Kit – Complete Pack (Item # IMK00-1) for 10:1 VitroINK® and cells mixing.

This package is sterilized and disposable for one-time use.

Kit Contents and Specifications

• Disposable mixing kit components for VitroINK® kit:
• (1) 1 mL syringe
• (1) connector and tubing
• (1) mixing head
• Sterile
• Use for 10:1 mixing ratio
• Ships room temperature. Store at room temperature.

ReadyStrain™ II Sterile Cell Straining Kits

For any singular Distributor customer order/sale price of over $5,000 there will be no return allowed. For any order of $0-$4,999 Distributor may cancel/return any or all Products with a 15% restocking fee within 30 days after delivery of products to the customer by Distributor. After 30 days from receipt of the product from the customer, there will be no return allowed.

VitroINK® 3:1 Mixing Component Pack

For any singular Distributor customer order/sale price of over $5,000 there will be no return allowed. For any order of $0-$4,999 Distributor may cancel/return any or all Products with a 15% restocking fee within 30 days after delivery of products to the customer by Distributor. After 30 days from receipt of the product from the customer, there will be no return allowed.

VitroINK® Mixing Kit – Complete Pack
 
Mix VitroINK® bioink with cells at 3:1 and 10:1 ratios. Full mixing kit with Dispenser and single-use components.

Mixing cells with the bioink is a critical step for 3D bioprinting. Because of the differences in viscosity of the cell suspension and bioink, the traditional manual mixing methods create a lot of air bubbles and non-uniform mixture which leads to the unstable printed structure, difficulty for cell observation and affect cell viability.

The VitroINK® Mixing Kit was designed to provide a robust mixing of the bioink and cells. Cells can be prepared with VitroINK® for a 3:1 mixing ratio using the 3 mL syringe or a 10:1 mixing ratio using the 1 mL syringe. To prepare the bioprinter cartridge, the VitroINK® and cell suspension are placed in the mixer and is dispensed through the connector and mixing head. Wait 10-20 minutes for the mixture to stabilized and the cartridge is ready for printing. There is no UV, no temperature/pH curing, or chemical cross-linking for the VitroINK® system. Adding cell culture medium to cover the printed structure can further stabilize and support cell growth. The bioprinted cells are ready for incubation.

The syringe, connector and mixing head are disposable for one-time use. Order the sterilized replacement mixing kit components to ensure the robust results for every single mixing.

Kit Contents and Specifications

• Disposable mixing kit components for VitroINK bioink:
• (1) Dispenser
• (1) 1 mL syringe
• (1) 3 mL syringe
• (1) connector and tubing
• (1) mixing head
• Sterile
• Use for 3:1 or 10:1 mixing ratio
• Ships room temperature. Store at room temperature.