The NGS Cell Free DNA Library Prep Kit (illumina and MGI Platforms) was developed for the construction of high quality cell-free DNA (cfDNA) libraries using 1 ng to 50 ng of cell-free DNA as input. The kit has a simple work flow and a fast procedure. Multiplexing of the cell free DNA library is possible based on the index type.

NGS Cell Free DNA Library Prep Kit Workflow

The main source of cell-free DNA (cfDNA) is derived from apoptotic hematopoietic cells in blood and found in the plasma. The length of the cfDNA is about 150-200 bp in length. Circulating tumor DNA (ctDNA) derived from malignant tumors is a part of cfDNA. Both cfDNA and ctDNA can be used as a noninvasive biomarker since it offers a better approach in comparison to invasive tissue biopsies.

NGS has been used for cfDNA and ctDNA sequencing in the field of liquid biopsy as it provides a whole genome level of molecular profiling. One of the hurdles for cfDNA sequencing is the difficulty of library preparation from the limited amount of cfDNA obtained from plasma. Our cell-free NGS kit makes it easy to get enough libraries from limited input in just 1.5 hours.

Three index types are available for the NGS Cell Free DNA Library Prep Kit of the illumina platform:

Non-index (Cat.# 30029): Libraries do not have index.

Index(Cat.# 30031): Each of our index primers contains a unique 6-base index sequence that can be used for sample identification. Total 48  library multiplexing is possible. Index information can be downloaded here.

Unique dual index (Cat.# 30033): Cell-free DNA library multiplexing up to 96 samples is possible with the unique dual indexes. We have developed a Four-Base Difference Index System. The system have at least 4 bases different from each other in the 8 bases index length. The primers effectively minimize sequencing errors such as mis-assignment, index hopping, index contamination etc. Index information can be downloaded here.

Indexes are available for the MGI platform kits (Cat.# 34031).

Kit advantages:

• Fast and simple protocol
  • Hands-on time is around 10 minutes
  • The total protocol time is only 1.5 hours
• Easy procedure based on:
  • Ready-to-use master mix for easy setup of reactions
  • Less reaction components to simplify bench work
• Less magnetic beads used for cleanup procedures: This can reduce more than 50% of the beads consumption
• Guaranteed high library conversion efficiency
• Low input cell-free DNA: From 1 ng to 50 ng

Comparison of library conversion efficiency with different samples under the same condition.

Comparison of library yield with different samples under the same condition.

The NGS Cell Free DNA Library Prep Kit (illumina and MGI Platforms) was developed for the construction of high quality cell-free DNA (cfDNA) libraries using 1 ng to 50 ng of cell-free DNA as input. The kit has a simple work flow and a fast procedure. Multiplexing of the cell free DNA library is possible based on the index type.

Introduction

The Kit provides fast purification of high-quality DNA, RNA and Prote from cells, tissues, and yeast using silica-membrane spin columns with a binding capacity of 100ug RNA. There is no need for phenol/chloroform extractions and time-consuming steps such as CsCl gradient ultracentrifugation, or precipitation with isopropanol or LiCl are eliminated. RNA purified using the HiPure Total RNA Purification System is ready for applications such as RT-PCR, Northern blotting, poly A+ RNA (mRNA) purification, nuclease protection, and in vitro translation.

Details

Specifications

Principle

The Kit isolates total RNA from up to 10 ⁷ cells or 30 mg tissue. A short workflow enables RNAisolation with genomic DNA removal in less than 25 min. Samples are first lysed and homogenized. The lysate is passed through a DNA Mini column, ethanol is added to the flow-through, and the sample is applied to an RNA column. RNA binds to the membrane and contaminants are washed away. High-quality RNA is eluted in as little as 30 µl water using the Kit.

Advantages

• High quality – high purity total RNA / DNA can be directly used in a variety of downstream applications
• Fast – column method can complete the extraction of several samples in 30 minutes
• Safe – no phenol chloroform extraction required
• Simultaneous extraction- simultaneously isolate DNA and RNA from one sample

Kit Contents

Storage and Stability

HiPure Kit can be stored dry at room temperature (15–25°C) and are stable for at least 18 months under these conditions. During shipment, crystals or precipitation may form in the Buffer RLC. Dissolve by warming buffer to 37°C.

The Kit provides fast purification of high-quality DNA, RNA and Prote from cells, tissues, and yeast using silica-membrane spin columns with a binding capacity of 100ug RNA. There is no need for phenol/chloroform extractions and time-consuming steps such as CsCl gradient ultracentrifugation, or precipitation with isopropanol or LiCl are eliminated. RNA purified using the HiPure Total RNA Purification System is ready for applications such as RT-PCR, Northern blotting, poly A+ RNA (mRNA) purification, nuclease protection, and in vitro translation.

TGM12 Table top capillary vessel Haematocrit centrifuge

Application:

Measure the ratio of blood corpuscle and separate microblood and micro solution.

Model: TGM12 Table top high speed capillary vessel centrifuge

Features:

Brushless DC motor, free maintenance, no powder pollution, micro computer control, digital display indicates the time、speed and RCF. Electric lid lock、 over speed and imbalance protection. The centrifuge body is made of high quality steel, Safe and reliable.

Technical parameters: