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Metal-Organic Framework Traps With Record-High Bilirubin Removal Capacity for Hemoperfusion Therapy

Metal-Organic Framework Traps With Record-High Bilirubin Removal Capacity for Hemoperfusion Therapy

Qingsi Li, Weiqiang Zhao, Hongshuang Guo, Jing Yang, Jiamin Zhang, Min Liu, Tong Xu, Yisheng Chen, Lei Zhang

ACS Appl Mater Interfaces. 2020 Jun 10;12(23):25546-25556.

PMID: 32393019

Abstract:

Adsorption-based hemoperfusion has been widely used to remove toxins from the blood of patients suffering acute liver failure (ALF). However, its detoxification effect has been severely hampered by the unsatisfactory adsorption performance of clinically used porous adsorbents, such as activated carbon (AC) and adsorption resin. Herein, two cage-based metal-organic frameworks (MOFs), PCN-333 (constructed from 4,4,4-s-triazine-2,4,6-triyl-tribenzoic acid (H3TATB) ligands and Al3 metal clusters) and MOF-808 (constructed from 1,3,5-benzenetricarboxylic acid (H3BTC) ligands and Zr6 metal clusters), are introduced for highly efficient hemoperfusion. They possess negligible hemolytic activity and can act as "bilirubin traps" to achieve outstanding adsorption performance toward bilirubin, a typical toxin related to ALF. Notably, PCN-333 shows a record-high adsorption capacity (∼1003.8 mg g-1) among various bilirubin adsorbents previously reported. More importantly, they can efficiently adsorb bilirubin in bovine serum albumin (BSA) solution or even in 100% fetal bovine serum (FBS) due to their high selectivity. Strikingly, the adsorption rate and capacity of PCN-333 in biological solutions are approximately four times faster and 69 times higher than those of clinical AC, respectively. Findings in this work pave a new avenue to overcome the challenge of low adsorption efficiency and capacity in hemoperfusion therapy.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP61414162	4,4′,4″-s-Triazine-2,4,6-triyl-tribenzoic acid		61414-16-2	Price

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