Additive manufacturing, broadly known as 3D printing, is transforming how products are designed, produced, and serviced in NEMS and MEMS Technologies. There are great demands for complicated three-dimensional (3D) micro/nanostructures in various areas and micro-components, such as MEMS, biomedical engineering, tissue engineering, new materials, new energy, HD displays, micro fluidics, micro- and nano-optical devices and systems, micro/nano sensors, micro/nano electronics, optoelectronic device, printed electronics, etc.

However, existing micro/nano manufacturing technologies cannot well meet these requirements of cost-effective mass-producing 3D micro/nanostructures. High volume manufacturing of complex 3D micro/nanostructures with low cost and high throughput, particularly for producing 3D micro/nanostructures with high aspect ratios and multi-materials as well as from a wide range of materials, currently has been considered as the most significant challenging issues. Micro-and nanoscale 3D printing (micro/nanostructure additive manufacturing) has shown high potentials and unique strengths in creating arbitrary 3D micro/nanostructures, true micro/nanostructures with high aspect ratios, and advanced materials with micro/nanostructures as well as composite materials.

The aim of this Special Issue is to collate original research and review articles concerning advances in 3D-printed micro and nano sensors.

Potential topics include but are not limited to the following:

• Sensors/biosensors based on nanomaterials
• Gas sensors
• Sensors with biomedical applications
• Enzyme biosensors
• Synthesis and/or characterisation of nanomaterials
• Design and manufacture
• Modelling and simulation studies of materials
• Additive manufacturing