Database integration is crucial in nanotechnology for several reasons: 1. Data Management: It helps in organizing vast amounts of data generated from various experiments and simulations. 2. Collaboration: Facilitates collaboration among researchers by providing a common platform for data sharing. 3. Efficiency: Enhances the efficiency of research by enabling quick access to relevant data. 4. Innovation: Promotes innovation by integrating diverse datasets which can lead to new discoveries and advancements.