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description: Protocol Design
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# Protocol architecture

Through a groundbreaking two-layer architecture, Natrium effectively addresses liquidity challenges by segregating risk between assets.&#x20;

At its core, Natrium employs risk-isolated pools for robust risk management. Building upon this foundation, a shuffler layer allows lenders to selectively designate collateral assets for deployment, preserving risk isolation integrity while providing a nuanced and customizable approach to collateral selection.

<figure><img src="https://3899017684-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FBZXShNtE6OOZ6aWRpS1H%2Fuploads%2F65iO4tmZcrkrbT4cPXEg%2FNatrium2.png?alt=media&#x26;token=749a0744-59da-497e-8424-154609268fd9" alt=""><figcaption><p>Natrium's Liquidity Layer.</p></figcaption></figure>

## Decentralized lending reinvented

Users can easily lend or borrow specific assets within these buckets(pairs), such as USDC for transactions and WETH as collateral. The unique aspect lies in the autonomy of each bucket, ensuring that involvement in one bucket doesn't impact dealings in another.&#x20;

While the concept of buckets/silos isn't entirely new, Natrium distinguishes itself by addressing the common issue of liquidity fragmentation through the introduction of a **shuffler layer**, enhancing organization and efficiency.

## **Shuffler layer**

Shufflers act as intermediaries, facilitating the seamless transfer of liquidity between distinct lending pairs.&#x20;

Users lend a specific type of asset to a shuffler, which then allocates these assets to approved lending pairs. The shufflers automatically distribute the lent assets among the approved lending pairs, optimizing returns.&#x20;

Notably, users who lend through the shuffler are connected only to the types of collateral they've chosen, providing a means to earn without being influenced by other lending pairs or collateral assets they haven't selected.

<figure><img src="https://3899017684-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FBZXShNtE6OOZ6aWRpS1H%2Fuploads%2Fga2zNGvcUvYIPzlYID9b%2FNatrium3.png?alt=media&#x26;token=ad464ca4-1938-4066-bc6e-881b1347b612" alt=""><figcaption><p>Shufflers.</p></figcaption></figure>

Our vaults will also be able to interact with blast’s unique native yield contracts and send rewards directly to lenders.

&#x20;Here’s how it’ll work:

1. User creates a vault.
2. The vaults comes with a special function called `yield manager` which uses user funds to interact with Blast’s contract.
3. All accrued rewards go directly to the lender.



_More info here:_ [_https://mirror.xyz/0x0A6fD9d1F36780aF3C323770d9ac085f8e6217d3/cJAw7weGgoKSU\_Dh0TdJEwvLMENZcr8gAQRWVVU9R3o_](https://mirror.xyz/0x0A6fD9d1F36780aF3C323770d9ac085f8e6217d3/cJAw7weGgoKSU_Dh0TdJEwvLMENZcr8gAQRWVVU9R3o)
