CHESS Platform for Rapid Enzyme Support Screening
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Solution Overview
Problem
The discovery of optimized copolymer brush support formulations for enzyme immobilization is hindered by the challenge of rapidly synthesizing and evaluating supports that encompass a large multi-component chemical space, leading to inefficient exploration of chemical space using conventional low-throughput approaches.
Innovation Solution
The development of a novel method called Combinatorial High-throughput Enzyme Support Screening (CHESS), which involves the combinatorial synthesis of random copolymer brushes in 384-well microplates via surface-initiated atom transfer radical polymerization (ATRP), followed by in situ screening of immobilized enzyme activity and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional low-throughput empirical approaches are used to explore copolymer brush compositions, then synthesis and evaluation can be performed with simple procedures, but the exploration of chemical space is laborious and inefficient
Solution Approach 1:
The chemical space of copolymer brush compositions is segmented into discrete compositional variants that can be synthesized and screened in parallel using 384-well microplate formats. Each well represents a distinct compositional variant, enabling systematic exploration of the chemical space through high-throughput parallel processing rather than sequential evaluation
Solution Approach 2:
The invention systematically varies compositional parameters (monomer ratios, copolymer composition) across multiple wells to generate a library of compositional variants. By changing these parameters in a controlled, high-throughput manner, the method enables rapid identification of optimal compositions that maximize enzyme stability and activity
2Adaptability or versatility
If a large multi-component chemical space is synthesized and evaluated, then optimized copolymer brush formulations can be discovered, but the complexity of synthesis and evaluation increases significantly
Solution Approach 1:
The 384-well microplate platform serves multiple functions: it acts as both the synthesis vessel and the screening platform. The same microplate format accommodates diverse copolymer compositions, enzymes, and assay conditions, eliminating the need for separate specialized equipment for each compositional variant and simplifying the overall system complexity
Solution Approach 2:
The invention transitions from traditional one-dimensional sequential screening to a multi-dimensional parallel screening approach. By organizing compositional variants across the two-dimensional grid of microplate wells, the method simultaneously evaluates multiple compositions, enzymes, and conditions across several dimensions of chemical space
3Productivity
If rapid synthesis of copolymer brush variants is achieved through high-throughput methods, then screening efficiency improves, but the manufacturing process becomes more complex
Solution Approach 1:
The microplate wells are pre-functionalized with ATRP initiators before polymerization. This preliminary action enables subsequent rapid synthesis of diverse copolymer compositions by simply adding different monomer combinations to each well, eliminating the need for complex separate synthesis procedures for each variant
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
CHESS enables rapid identification of optimal copolymer brush compositions for enzyme immobilization, significantly accelerating the search for chemical compositions and facilitating the discovery of biocompatible and stabilizing materials, with a throughput that is approximately 1,000-fold faster than conventional methods.
Implementation Method 1
surface-initiated atom transfer radical polymerization (ATRP)
Implementation Method 2
green-light-activated polymerization
Implementation Method 3
combinatorial synthesis of random copolymer brush supports of controlled composition
Implementation Method 4
in situ screening of immobilized enzyme activity and stability
Data Source
AI summary
A novel combinatorial and high-throughput platform that enables rapid screening of complex and heterogeneous copolymer brushes as enzyme immobilization supports named Combinatorial High-throughput Enzyme Support Screening (CHESS). Using a 384 well-plate format, we synthesized arrays of three-component polymer brushes in the microwells using photo-activated surface-initiated polymerization, and immobilized enzymes in situ. The utility of CHESS to identify optimal immobilization supports under thermally and chemically denaturing conditions was demonstrated using Bacillus subtilis Lipase A (LipA). The identification of supports with optimal compositions was validated by immobilizing LipA on polymer-brush modified biocatalyst particles. We further demonstrated that CHESS could be used to predict the optimal composition of polymer brushes a priori for the previously unexplored enzyme, alkaline phosphatase (AlkP). Our findings demonstrate that CHESS represents a predictable and reliable platform for dramatically accelerating the search of chemical compositions for immobilization supports and further facilitate the discovery of biocompatible and stabilizing materials.