Oligo(p-phenyleneethynylene)s (OPEs) end-capped with (alkynyl)bis(diphosphine)ruthenium and thiol/thiolate groups stabilize ca. 2 nm diameter gold nanoparticles (AuNPs). The morphology, elemental composition and stability of the resultant organometallic OPE/AuNP hybrid materials have been defined using a combination of molecular- and nano-material chacterization techniques. The hybrids display long-term stability in solution (more than a month), good solubility in organic solvents, reversible ruthenium-centered oxidation, and transparency beyond 800 nm, and possess very strong nonlinear absorption activity at the first biological window, and unprecedented two-photon absorption activity in the second biological window (σ₂ up to 38,000 GM at 1,050 nm).

末端被（炔基）双（二膦）钌和硫醇/硫醇盐基团封端的低聚（对亚苯基亚乙炔基）（OPE）直径2 nm的金纳米颗粒（AuNPs）。已经使用分子和纳米材料cha化技术的组合定义了所得有机金属OPE / AuNP杂化材料的形态，元素组成和稳定性。杂种在溶液中显示出长期稳定性（一个月以上），在有机溶剂中具有良好的溶解性，以钌为中心的可逆氧化性以及超过800 nm的透明性，并且在第一个生物窗口具有非常强的非线性吸收活性，并且具有前所未有的两个在第二生物窗口-photon吸收活性（σ ₂高达38000 GM在1050纳米）。