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Thumbnail Filmstrip of Bioptechs Delta T Culture Dish Controller Images
Bioptechs Delta T Culture Dish Controller
The Bioptechs Delta T™ Culture Dish System is the only culture dish that provides heat to the contents of the dish without heating the stage of the microscope. It uses number 1.5 thickness cover glass bottomed dishes that have an electrically conductive, optically transparent coating of ITO on the underside. The coating is electrically powered to directly warm the contents of the dish. This is an exclusive technology to Bioptechs and provides features and capabilities no other system can match. An intelligent feedback loop passes an electrical current through a thin-film coating on the underside surface of the glass substrate on which the cells are grown. Heat is applied directly to the cells without the inefficiencies associated with peripheral heating by traditional peripherally heated culture dish warmers. The controller features a real-time temperature display and fast learning curve to compensate for cooling due to surface evaporation while responding to temperature changes due to perfusion. There is also an alarmed protection circuit to safeguard the cells and an internal reference for the user adjustable calibration. The standard controller has a temperature range of ambient to 50° C. Extended ranges are available upon request. Accessories to close the dish and provide a closed chamber or items which accommodate a wide variety of cell types are available on the accessories page.
Delta T dishes have 35mm O.D. and a 23mm central aperture. The peripheral region of the dish is tapered to reduce the dead-volume and the height of the dish is 6mm to allow better access for micro-injection and micromanipulation. The dishes are a hybrid of polystyrene plastic and Desag 263 glass. The outer structure of the dish is available in opaque black or clear and come with a clear 0.5mm or no.1.5 glass coverslip bottom bonded to it.
Bioptechs Delta T vs. Traditional Stage Heating
| Delta T | Every Other Traditional "Stage Heater" |
| Easier Technique | Heating stages systems are not efficient |
| Accurate Temperature Control | Plastic dishes are a poor conductor of heat |
| Low dead volume | Temperature does not recover quickly during or after perfusion |
| Fast recovery | Plastic bottomed dishes are not suitable for high resolution microscopy |
| Superior Optical Image | Non-uniform temperature distribution |
| Unnecessary dead volume |
Thermographic Images
The thermograph on the left shows the efficiency, accuracy and uniformity of the Delta T™ system. Notice the temperature of the stage adapter. It is nearly the same temperature as the room temperature background. The dotted oval shows where the edge of the stage adapter is in visible light. Only the specimen and media are heated. Power consumption is 0.9 watts because heat is only applied to the specimen area. There is no heat transmitted to the stage. Therefore, it remains “Z” axis stable. This is a sharp contrast to traditional peripheral heating methods (shown below right), and clearly superior.
The thermograph above on the right indicates the disadvantage of peripheral heating. This is a thermal image of a 50mm culture dish in the center of a 100mm diameter uniformly heated, 3mm thick, aluminum plate with a 25 mm hole in the center. This image was acquired after 20 minutes of equilibration. Note the high temperatures of nearly 60° C, that it takes to reach 37° C in the specimen area. In this case heat that is not beneficial to the specimen is sunk into the stage causing Z-axis instability, not to mention the non-uniform temperature of the specimen area.
All returns must be authorized by Spectra Services in order to insure proper credit and must be requested within 30 days of purchase. All returns are subject to a minimum 15% restocking charge. For returns not due to error on behalf of Spectra Services, the customer is responsible for all transportation fees related to the returned product. To ensure proper credit, each product return must include the following information:
- Customer name and address
- Purchase order number
- Spectra Services shipping order number
- Date of invoice
- Item number of returned item(s)
- Spectra Services return authorization number (RMA)
- Reason for return
Non-Returnable Goods
Unfortunately, Spectra Services is unable to accept the following returns at this time:
- Products not in completely resalable condition (including products with damaged, missing, or defaced labeling or packaging
- Chemicals, reagents, diagnostics, sterile, or any controlled products (unless products do not meet specification
- Laboratory apparatus or instruments that have been used or are without the original packaging, labeling and operating manuals
- Refrigerated products or other perishables
- Products which are not inventoried by Spectra Services and are not able to be returned to the manufacturer
- Products purchased on a special order
- Products not purchased from Spectra Services
- Products with an expired shelf life or an expiration date too short for resale
- Discontinued products
Spectra Services reserves the right to review this policy on a case-by-case basis.
Pre-Owned Products
Upon receipt of the pre-owned product(s), the customer has one week to evaluate the product to ensure it meets their expectations. If for some reason the customer decides to return the product, they may do so at any point during those seven (7) days for a full refund. No restocking fee will be assessed, however, the customer is responsible for the return shipping costs. Full credit will be issued upon receipt and inspection of the item(s) to ensure equipment was returned in the same condition it was initially shipped out in.
Important Information
All exchanges and returns require the completion of a Return Merchandise Authorization (RMA) form. Once completed, please return the merchandise immediately as the RMA number is only active for ten (10) days from the date of issuance.
Charges associated with returning items are the responsibility of the customer unless the item(s) arrived defective, damaged, or incorrect.
Spectra Services highly recommends that return packages be insured for full value and packaged securely to prevent shipping damage.
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