The term "nano flower" is not a specific scientific term. However, one possible interpretation could be a structure created using nanotechnology that resembles a flower on a very small scale. Here's a general concept of how such nanostructures might be fabricated:

1. Material Selection: The first step is selecting the materials for the nano flower. Nanotechnology often involves working with materials at the nanoscale, and various materials can be used, including metals, semiconductors, or organic compounds.

2. Bottom-Up or Top-Down Approach: Nanomaterials can be synthesized using either a bottom-up or top-down approach. In the bottom-up approach, smaller components are built up to create the desired structure, while in the top-down approach, larger structures are scaled down to the nanoscale.

3. Self-Assembly: One powerful technique in nanotechnology is self-assembly, where nanoscale components spontaneously arrange themselves into a desired structure. This mimics natural processes and helps create intricate nanostructures efficiently.

4. Nanofabrication Techniques: Various nanofabrication techniques, such as photolithography, electron beam lithography, or chemical vapor deposition, may be employed to shape and manipulate materials at the nanoscale. These techniques allow for precise control over the structure and arrangement of nanomaterials.

5. Template-Assisted Methods: Using templates, such as molds or patterns at the nanoscale, can guide the assembly of materials into specific shapes. After the desired structure is formed, the template may be removed.

6. Chemical Synthesis: Chemical methods, including solution-phase synthesis or chemical vapor deposition, can be used to grow nanoscale structures by controlling the chemical reactions that occur at the molecular level.

7. Characterization: Once the nano flower is created, it needs to be characterized to ensure it meets the desired specifications. Techniques such as electron microscopy, atomic force microscopy, or spectroscopy can be employed to examine the structure, size, and composition of the nano flower.

   It is reported that the nanoflowers hold great promise as enzyme mimics for application in the field of biosensor, bioanalysis and biocatalysis.
   

It's important to note that the creation of nanostructures often involves interdisciplinary collaboration between chemists, physicists, engineers, and material scientists. The specific methods used will depend on the intended application of the nanostructures and the properties desired at the nanoscale.