According to an example, an apparatus for collecting a material to be spectrally analyzed includes a body having a first end and a second end, in which the body is elongated along a first axis from the first end to the second end. The body also includes a hole having an opening formed in an external surface of the body at a location between the first end and the second end and extending at least partially through the body at an angle with respect to the first axis. The body further includes a plurality of surface-enhanced spectroscopy (SES) elements positioned inside the body.
