扁平化手绘风实验科研人员化学场景合成碳化动作插画素

Prompt for AI Image Generator (BioRender Style): A three-step scientific schematic diagram illustrating the synthesis of carbonized HA-CD/CS materials, rendered in a clean, professional BioRender style with a white background, flat icons, and clear flow arrows. Stage 1: Synthesis of HA-CD Conjugate (Left Panel) Initial Reactants: Start on the far left with an icon of a wavy polymer chain labeled "Hyaluronic Acid (HA)" with carboxyl groups attached. Next to it, show icons for small molecules labeled "EDC" and "NHS" with an arrow pointing to a reaction vessel icon containing "PBS, pH 7.4". Activation: An arrow leads to an intermediate "Activated HA" structure. Conjugation: An arrow labeled "+ Am-β-CD (dropwise)" points to the addition of cup-shaped molecules with amino groups, labeled "Am-β-CD". Product 1: A thick reaction arrow leads to the final product of this stage: a polymer chain with several cup-shaped CD molecules attached via amide bonds, labeled "HA-CD Conjugate Solution".