An implant (112) for detecting at least one analyte (126) in a body fluid, in particular an eye fluid, is proposed. The implant (112) is designed to be implanted in a tissue layer and/or a chamber of an eye of a patient, the implant (112) having a hydrogel matrix (110) with at least one hydrogel (114). The implant (112) also has sensor particles (116) dispersed in the hydrogel matrix (110), the sensor particles (116) having at least one sensor matrix (120) with a sensor matrix material (122) and at least one sensor material (124).本發明提出一種偵測身體組織，特別是眼組織內的至少一種分析物(126)用之植體(112)。該植體(112)係經設計要植入病患的眼之組織層及/或室之內，該植體(112)具有一含有至少一種水凝膠(114)的水凝膠基質(110)。該植體(112)也具有經分散在該水凝膠基質(110)內之感測粒子(116)，該感測粒子(116)具有至少一帶有感測基質材料(122)的感測基質(120)與至少一種感測材料(124)。
