This invention relates to imaging nanoprobe and methods of use thereof. Specifically, the invention relates to long-lived oxygen-insensitive nanoprobe comprising a lumisescent moeity with a long excited state lifetime, embedded in a dendrimer, wherein said dendrimer is internally cross-linked and has hydrophilic peripheral layer.
                            这项发明涉及成像纳米探针及其使用方法。具体而言,该发明涉及一种长寿命的氧不敏感纳米探针,包括一个具有长激发态寿命的发光基团,嵌入在一个树枝状聚合物中,所述树枝状聚合物内部交联,并具有亲
水性外周层。