Invention Grant
- Patent Title: Hybrid additive-subtractive laser fabrication platform for shaping hydrogels
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Application No.: US16973235Application Date: 2019-07-11
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Publication No.: US11260596B2Publication Date: 2022-03-01
- Inventor: Pranav Soman , Puskal Kunwar , Zheng Xiong
- Applicant: Pranav Soman , Puskal Kunwar , Zheng Xiong
- Applicant Address: US NY Liverpool; US NY Syracuse; US NY Syracuse
- Assignee: Pranav Soman,Puskal Kunwar,Zheng Xiong
- Current Assignee: Pranav Soman,Puskal Kunwar,Zheng Xiong
- Current Assignee Address: US NY Liverpool; US NY Syracuse; US NY Syracuse
- Agency: Bond Schoeneck and King PLLC
- Agent David Nocilly
- International Application: PCT/US2019/041290 WO 20190711
- International Announcement: WO2020/014411 WO 20200116
- Main IPC: B29C64/277
- IPC: B29C64/277 ; B29C64/135 ; G02F1/37 ; B33Y10/00 ; B33Y30/00 ; B33Y70/00

Abstract:
A hybrid laser printing (HLP) technology that utilizes ultrafast laser in sequential additive-subtractive modes to create 3D hydrogel constructs. The approach involves the synergistic use of additive crosslinking and subtractive ablation processes that are conventionally mutually exclusive. HLP can be operated at virtually any penetration depth and allow fabrication of multi-layer hydrogel constructs at micrometer resolution. HLP was used to print ready-to-use functional chips using commonly used hydrogels for potential cellular communication and migration applications. HLP was also found to be compatible with in situ printing of cell-laden hydrogel constructs. HLP makes shaping of soft hydrogels into 3D multi scale functional devices possible.
Public/Granted literature
- US20210237354A1 HYBRID ADDITIVE-SUBTRACTIVE LASER FABRICATION PLATFORM FOR SHAPING HYDROGELS Public/Granted day:2021-08-05
Information query
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