Gene chip and method of preparing the same

US12208365B2 · kind B2 · utility

Assignee

• BGI SHENZHEN · CN

Inventors

• Zhao Wang · Solna, SE
• Hui Wang · Lo Wu, CN
• Cheng Xing · Shanghai, CN
• Han Li · Xi'an, CN
• Wen Zhang · Hubei, CN
• Jay Shafto · Mountain View, US
• Mei-Hua Gong · Lo Wu, CN
• Jin Yang · Lo Wu, CN
• Yin Luo · Taizhou City, CN
• Zhen Zhang · Shanghai, CN
• Yuan Li · Shandong, CN
• Xue Jiang · Chengdu, CN

Key dates

• Filing date: Aug 15, 2018
• Grant date: Jan 28, 2025
• Expiry date: Jun 7, 2041

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C40B40/06
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A gene chip includes a chip carrier, a plurality of DNA nanoballs assembled on the chip carrier, and a polymer film formed on the chip carrier and wrapping the DNA nanoballs. The polymer film includes at least one of a film of a positively charged polymer, a film of a positively charged polymer which is modified, a film of a zwitterionic polymer, and a composite polymer film. The composite polymer film is formed by a layer-by-layer self-assembly process of a positively charged polymer and a negatively charged polymer. The gene chip has good sequencing quality and different functions can be achieved by coating with different polymers, such as the chip surface rapidly drying out and surface non-specific adsorption. A method of preparing a gene chip is further disclosed.