"Create a professional LinkedIn background image featuring a clean, futuristic design. Focus on abstract visuals that represent materials science and nanotechnology, including crystalline structures, advanced polymers, and innovative lab processes. Use sleek geometric patterns, soft gradients in blues and greys, and metallic accents to convey a sense of innovation and precision. Avoid any text, ensuring the design highlights professionalism, cutting-edge technology, and creativity." --ar 3:2 --stylize 200