NEXTflex® PCR-Free Modules

For amplification-free NGS library preparation

Catalog# Product Name Quantity US List Price
NOVA-5142-05  NEXTflex® PCR-free End Repair Mix 100 rxns $376 Buy Now
NOVA-5142-06 NEXTflex® PCR-Free Adenylation Mix 100 rxns $504 Buy Now
NOVA-5142-07 NEXTflex® PCR-Free Ligation Mix 100 rxns $1,269 Buy Now


  • Flexible options – NEXTflex™ PCR-Free Modules are available in aliquots containing any number of reactions you need
  • Convenient – Reactions are provided in master mix format to reduce steps during DNA sample prep workflows
  • Eliminates amplification bias and poor sequence representation
  • Improves read mapping
  • Reduces duplicate sequences
  • Better de novo assembly
  • Enhanced Adapter Ligation Technology offers a larger number of unique sequencing reads
  • Automation-friendly workflow is compatible with liquid handlers
  • Functionally validated with Illumina sequencing platforms

The NEXTflex™ PCR-Free Modules offer additional flexibility to amplification-free Illumina library preparation. Amplifying AT or GC rich genomic regions often leads to sequence biased nucleotide compositions and poses a serious challenge during analysis. Using specially designed master-mixed enzymes, the NEXTflex™ PCR-Free Modules completely eliminate the need for amplification, enabling better read mapping and a reduction in duplicate sequences, leading to reduced sequence cost and bias for more representative base identities and better de novo assembly. All of these modules are compatible with Illumina sequencing platforms. These modules are available in any quantity greater than 100 reactions.


NEXTflex™ PCR-Free End Repair Module

The NEXTflex™ PCR-Free End-Repair Module is designed with enzymes and buffers to efficiently repair fragmented DNA with overhangs to blunt ended DNA. The NEXTflex™ PCR-Free End Repair Module is supplied as a master mix to maximize efficiency and convenience in DNA sample preparation workflows. The module is the first step in the NEXTflex™ PCR-Free Sequencing Kit.


NEXTflex™ PCR-Free Adenylation Module

The NEXTflex™ PCR-Free Adenylation Module has been designed with enzymes and buffers to efficiently incorporate an “A” on the 3’ end of blunt DNA fragments. The module is the second step in the NEXTflex PCR-Free Sequencing Kit.


NEXTflex™ PCR-Free Ligation Module

The NEXTflex™ PCR-Free Ligation Module has been designed with enzymes and buffers to efficiently ligate DNA adapters to adenylated DNA fragments. Using Bioo Scientific’s Enhanced Adapter Ligation Technology, adapters are bound to more DNA fragments, leading to increased sequencing diversity and reads. The module is the fourth step in the NEXTflex PCR-Free Sequencing Kit.


Automation Solutions

The NEXTflex PCR-Free Modules and NEXTflex PCR-Free DNA Sequencing Kit are automated on Tecan's Freedom EVO Workstation with a customer developed program. Read GeT with the NGS program, published in the Tecan Journal, for more information.


Kit Specs

The shelf life of all reagents is 12 months when stored properly at -20°C. These modules ship on dry ice. The modules are available in any quantity greater than 100 reactions.