Abstract
Nanomaterials refer to materials with nanoscale size in at least one dimension, which is usually in the range of 1–100nm. At the nanoscale, these materials may have new physical properties—for example, the local enhancement of electromagnetic field with silver or gold nanoparticles, or the quantum confinement effects with quantum dots (QDs). Some nanomaterials also show good biocompatibility and may find wide applications in biomedical engineering. For example, silica nanomaterials, especially with hollow interiors, have been employed in drug delivery. The fabrication of nanomaterials often involves micro- or nanotechnology, as described in Chapter 2. Nanomaterials-based biosensors for molecular sensing have attracted much attention in recent years for their versatile structure-function designs, high resolution, low detection limit, high throughput, and low cost. They have largely propelled the development of diagnostics and prognostics in more accurate and precise ways.
Published Version
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