Escherichia coli (E.coli) O157:H7 Quantified Bacterial DNA Standards
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Detail
Overview
Quantified standard to be used as a positive control or PCR quantification standard
Vigorously quantified using multiple methods
Includes partial sequence of STX-1 subunit A, and STX-2 subunit A genes (please refer to product insert for more details)
Compatible with E. coli O157:H7 TaqMan PCR Detection Kit and E. coli O157:H7 TaqMan PCR Detection Probe/Primer and Control Set
E. coli O157:H7 is a rod-shaped, gram negative bacterium. It is an enterohemorrhagic strain of the common E. coli bacterium and infection by the O157:H7 strain is commonly associated with hemorrhagic colitis. E. coli O157:H7 is recognized by its somatic (cell wall) antigen (O157) and its flagella antigen (H7). In addition, E. coli O157:H7 is known to produce Shiga-like toxins, which cause severe symptoms. While most patients can recover from the infection, up to 15% of the patients may develop hemolytic uremic syndrome, a type of kidney failure that could be fatal. Infection of E. coli O157:H7 usually results from consumption of poorly prepared food including undercooked meat (particularly ground beef), untreated water or raw unpasteurized milk.
Norgen’s E. coli O157:H7 Quantified Bacterial DNA Standards are cloned fragments of the two Shiga-like toxin regions purified using Norgen’s sample preparation technology. They include partial sequences of STX-1 subunit A gene and STX-2 subunit A gene. Please refer to Appendix A for sequence information. The purified DNA is quantified vigorously using multiple methods including spectrophotometry, gel densitometry and real-time PCR. It is intended to be used as positive controls or PCR quantification standards for E. coli O157:H7. This product is compatible with Norgen Biotek’s E. coli O157:H7 Taqman PCR Detection Kit (Cat. TM41350) and E. coli O157:H7 Taqman PCR Detection Probe/Primer and Control Set (Cat. TM41310).
Storage Conditions Upon receipt, store Norgen’s E. coli O157:H7 Quantified Bacterial DNA Standards at -20°C or lower. Avoid multiple freeze-thaw cycles. If needed, prepare smaller working aliquots and store at -20°C or lower.
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Cryptococcus neoformans TaqMan PCR Detection Kits
Product Info
Document
Product Info
Overview
Detection kits for Cryptococcus neoformans
Available in TaqMan format for analysis
Cryptococcus neoformans is an encapsulated yeast. Infection with C. neoformans is known as cryptococcosis and is the cause of the most common life-threatening meningitis in patients with weakened immune systems, particularly in advanced HIV/AIDS. C. neoformans is commonly found in soil throughout the world. Human infection of C. neoformans occurs via inhalation of aerosolized spores. From the lungs, C. neoformans is spread hematogenously to the Central Nervous System (CNS), resulting in meningoencephalitis. Although the availability of antiretroviral therapy in the developed world has reduced the incidents of cryptococcosis, it is still a major problem in developing countries and is one of the leading causes of death in patients with HIV/AIDS. In fact, one of the major challenges in treating cryptococcosis is that many patients with cryptococcal CNS disease are asymptomatic in terms of cryptococcal pneumonia, making it difficult for early detection.
Storage Conditions and Product Stability All kit components can be stored for 2 years after the date of production without showing any reduction in performance.
All kit components should be stored at -20°C upon arrival. Repeated thawing and freezing (> 2 x) of the Master Mix and Positive Control should be avoided, as this may affect the performance of the assay. If the reagents are to be used only intermittently, they should be frozen in aliquots.
DBCO-S-S-acid is a cleavable reagent for introduction of a carboxylic acid moiety to azide-containing biomolecules using copper-free Click Chemistry. PEG spacer arm provides better solubility to the labeled molecules in aqueous media. The disulfide bond in this linker can be cleaved using reducing agents such as DTT, BME and TCEP.
Document
DBCO-S-S-acid is a cleavable reagent for introduction of a carboxylic acid moiety to azide-containing biomolecules using copper-free Click Chemistry. PEG spacer arm provides better solubility to the labeled molecules in aqueous media. The disulfide bond in this linker can be cleaved using reducing agents such as DTT, BME and TCEP.
1. User-Friendly Design: The chamber lid and tabletop are covered with heat-insulating resin materials, providing both protection against burns and an aesthetically pleasing appearance. The upward-opening flip-top door saves space, while the rounded corners prevent injury. The specially designed steam discharge and collection system minimizes steam burn risks and enhances operational convenience.
2. Interlock Mechanism and Safety Protection: The safety interlock system is designed to be more sensitive and secure. The chamber lid cannot be opened if there is pressure or steam inside the chamber. The lid can only be opened when the pressure gauge reads “0” MPa. The sterilizer will not start heating if the chamber lid is not properly locked. These features enhance the overall safety of the machine.
3. Over-temperature and Heating Protection: The system continuously monitors the temperature inside the sterilization chamber. If the temperature becomes too high or heating is abnormal, power will be automatically cut off to prevent overheating.
4. Automatic Fault Detection System: The machine performs an automatic self-check when powered on. If a fault occurs during operation, an audible alarm will sound, and a fault code will be displayed.
5. Lid Closure Check System: The system automatically detects whether the chamber lid is securely locked. If the lid is not properly locked, the sterilizer will not start.
6. Leakage, Over-current, and Short-Circuit Protection: If there is leakage in the heating elements or other components, or if over-current or short-circuit conditions occur, the system will automatically cut off power to prevent user injury.
7. Water Shortage and Independent Dry-Burning Protection: Equipped with a low water level sensor and independent dry-burning protection device, the system can monitor the water level in the chamber in real-time to prevent dry burning and avoid false readings. If the low water level sensor fails, the overheat and dry-burning protection system will automatically activate, cut off power to the heating ring, and sound an alarm to ensure safety.
8. Dual Pressure Protection: The system includes both a mechanical safety valve and an electronic over-pressure protection system. If pressure becomes abnormal, the system will relieve pressure and cut off power while sounding an alarm.
9. Back end Safety Testing: The system can be periodically tested for safety and protective measures.
10. Over-pressure Testing: Regular testing ensures that the instrument’s over-pressure protection system can automatically cut off power or that the safety valve can open to relieve pressure.
11. Performance Testing: The instrument’s safety performance has been tested by national authorized inspection agencies, and a test report is available.
Technical Parameters
Model
HB65A Standard TypeHB65B Auto Water Replenishment TypeHB65C Auto Drying Type
HB90AStandard TypeHB90BAuto Water Replenishment TypeHB90CAuto Drying Type
HB110AStandard TypeHB110BAuto Water Replenishment TypeHB110CAuto Drying Type
Capacity
65L
90L
110L
Dimensions (L × W × H) mm
664×660×994.5
664×660×994.5
664×660×1200
Sterilization Chamber Dimensions (Diameter × Height) mm
Timer Pre-set Range: Set operating time (year, month, day, hour, minute), check current time (year, month, day, hour, minute), total sterilization cycles, fault occurrence time, and code.
Pressure Gauge Display Range
0～0.6Mpa
Pressure
Chamber Design Pressure: 0.35 MPa; Each product comes with a quality certificate and a certificate issued by the special equipment manufacturing supervision and inspection department.
Pressure Safety Protection
Dual independent pipeline measurement and control, mechanical and electronic dual pressure protection
Fully automatic internal exhaust (see instructions for exhaust temperature settings), built-in large-capacity steam condensate collection bottle and water tank
Door lock interlocking device; Cover closing check; Dry burn protection; Water level sensor monitoring; Electronic over pressure protection; Mechanical safety valve; Over temperature and heating protection; Over current and short circuit protection; Leakage protection; Cooling lock; Burn injury safety protection; Automatic fault detection system
Printer, cooling fan, item temperature sensor, USB output
Stainless Steel Baskets
(φ360×230)1pcs(φ360×200)1pcs
(φ360×200)1pcs(φ360×400)1pcs
(φ360×200)2pcs(φ360×400)1pcs
Note: The upper limits for cooling lock door temperature and exhaust temperature are related to the boiling point.
Other Optional Accessories
1. Dot Matrix Printer: Capable of printing temperature, time, F0 value, and pressure data. USB data export and curve plotting.
2. Stainless Steel Basket with Base.
3. Pressure Sensor
4. Stainless Steel Bucket
5. Item Thermometer
6. 3Q Validation Adapter
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Features and functions:
1. Large-diameter sterilization chamber：The 40 cm large-diameter sterilization chamber provides an exceptionally spacious environment to meet a wide range of sterilization needs.
2. Sterilization temperature：105-138℃.
3. Exhaust control ：After sterilization is complete, the exhaust valve can automatically open to release the exhaust at a pre-set temperature.
4. Verification interface: Provides temperature and pressure inspection ports for easy calibration.
5. Saturated steam monitoring：The system automatically monitors the expulsion of cold air to ensure a pure steam sterilization environment, guaranteeing optimal sterilization effectiveness.
6. Pressure performance：The chamber is designed to withstand a pressure of up to 0.35 MPa, and each unit is tested with a water pressure of up to 0.44 MPa. Advanced pressure protection ensures the safety load of the equipment.
7. Intelligent control system:The microcomputer chip-based intelligent control system monitors the temperature and pressure inside the sterilization chamber in real-time. The chamber lid can only be opened under safe temperature and pressure conditions. The system also provides fully automatic control of the sterilization process and allows for convenient maintenance, inspection, calibration, recording, and future upgrades.
8. Six preset programs:Includes six fixed programs for liquid sterilization and holding, solid sterilization and drying, agar melting and holding, and waste sterilization.
9. Memory storage system:Users can set their own parameters, create multiple programs, and access them at any time. The system allows for operation permissions to be set at three levels—user, administrator, and engineer—to facilitate effective use and management of the sterilizer.
10. Door-opening temperature: Each program can be set with a specific cooling lock door-opening temperature based on the thermal inertia of the sterilized items. This prevents users from opening the door when the items (especially liquid sterilized items) are still in an unsafe condition, thus avoiding burns.
11. Drying function: Thorough drying that meets CE standards, with a cooling lock mechanism.
12. One-touch inquiry function: Allows checking of current time, total number of sterilization cycles, fault occurrence time, and codes.
13. Scheduled start function: Allows you to set a start time so that the sterilizer automatically starts at the scheduled time.
