Nanomanufacturing—Perspective and applications

Fang, Fengzhou; Zhang, X. D.; Gao, Wei; Guo, Y. B.; Byrne, G.; Hansen, Hans Nørgaard

doi:10.1016/j.cirp.2017.05.004

Cited by 128 publications

(55 citation statements)

References 220 publications

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“…In recent years, on-machine and in-process surface metrology is playing an increasingly important role in the process chain of traditional manufacturing that is composed of cutting, grinding and polishing for precision workpieces with complex shapes and/or extremely tight tolerances, such as freeform optics in head-up displays, large roll moulds for roll-to-roll replication and turbine blades of airplanes [220] [108] [27]. Similar trends are observed in the non-traditional manufacturing processes, such as additive manufacturing [199] and nano-scale manufacturing [55] [54].…”

Section: Introductionmentioning

confidence: 88%

On-machine and in-process surface metrology for precision manufacturing

et al. 2019

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On-machine and in-process surface metrology are important for quality control in manufacturing of precision surfaces. The classifications, requirements and tasks of on-machine and in-process surface metrology are addressed. The state-of-the-art on-machine and in-process measurement systems and sensor technologies are presented. Error separation algorithms for removing machine tool errors, which is specially required in on-machine and in-process surface metrology, are overviewed, followed by a discussion on calibration and traceability. Advanced techniques on sampling strategies, measurement systems-machine tools interface, data flow and analysis as well as feedbacks for compensation manufacturing are then demonstrated. Future challenges and developing trends are also discussed.

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Section: Introductionmentioning

confidence: 88%

On-machine and in-process surface metrology for precision manufacturing

et al. 2019

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“…Indeed, traditional top-down or bottom-up chemical and physical nanomanufacturing approaches have a greater energy-intensity compared to manufacturing processes of bulk materials. Further, they are often characterized by low process yields (using acidic/basic chemicals and organic solvents), generation of greenhouse gases, and they require specific facilities, operative conditions (e.g., from moderate to high vacuum), and high purity levels of starting materials [2][3][4]. The principles of green chemistry ("the invention, design and application of chemical products and processes to reduce or to eliminate the use and generation of hazardous substances") combined with white biotechnology ("biotechnology that uses living cells-yeasts, molds, bacteria, plants, and enzymes to synthesize products at industrial scale") can really contribute to the development of more sustainable industrial processes [5], also for nanomanufacturing.…”

Section: Introductionmentioning

confidence: 99%

Microbial Nanotechnology: Challenges and Prospects for Green Biocatalytic Synthesis of Nanoscale Materials for Sensoristic and Biomedical Applications

2019

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Nanomaterials are increasingly being used in new products and devices with a great impact on different fields from sensoristics to biomedicine. Biosynthesis of nanomaterials by microorganisms is recently attracting interest as a new, exciting approach towards the development of ‘greener’ nanomanufacturing compared to traditional chemical and physical approaches. This review provides an insight about microbial biosynthesis of nanomaterials by bacteria, yeast, molds, and microalgae for the manufacturing of sensoristic devices and therapeutic/diagnostic applications. The last ten-year literature was selected, focusing on scientific works where aspects like biosynthesis features, characterization, and applications have been described. The knowledge, challenges, and potentiality of microbial-mediated biosynthesis was also described. Bacteria and microalgae are the main microorganism used for nanobiosynthesis, principally for biomedical applications. Some bacteria and microalgae have showed the ability to synthetize unique nanostructures: bacterial nanocellulose, exopolysaccharides, bacterial nanowires, and biomineralized nanoscale materials (magnetosomes, frustules, and coccoliths). Yeasts and molds are characterized by extracellular synthesis, advantageous for possible reuse of cell cultures and reduced purification processes of nanomaterials. The intrinsic variability of the microbiological systems requires a greater protocols standardization to obtain nanomaterials with increasingly uniform and reproducible chemical-physical characteristics. A deeper knowledge about biosynthetic pathways and the opportunities from genetic engineering are stimulating the research towards a breakthrough development of microbial-based nanosynthesis for the future scaling-up and possible industrial exploitation of these promising ‘nanofactories’.

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“…Nano-metrology is the only effective method that ensures the reliability and consistency of nano-manufacturing [1][2][3]. Compared with other techniques such as scanning electron microscopy (SEM), atomic force microscopy (AFM) [4], and near-field scanning optical microscope (NSOM) [5], optical scatterometry [6,7], also known as optical critical dimension metrology or optical critical dimension (OCD) metrology, is more suitable for monitoring, assessing, and optimizing the nano-manufacturing processes due to its advantages of being non-contact, non-destructive, low in cost, and easy to integrate, etc.…”

Section: Introductionmentioning

confidence: 99%

Dependence-Analysis-Based Data-Refinement in Optical Scatterometry for Fast Nanostructure Reconstruction

et al. 2019

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Optical scatterometry is known as a powerful tool for nanostructure reconstruction due to its advantages of being non-contact, non-destructive, low cost, and easy to integrate. As a typical model-based method, it usually makes use of abundant measured data for structural profile reconstruction, on the other hand, too much redundant information significantly degrades the efficiency in profile reconstruction. We propose a method based on dependence analysis to identify and then eliminate the measurement configurations with redundant information. Our experiments demonstrated the capability of the proposed method in an optimized selection of a subset of measurement wavelengths that contained sufficient information for profile reconstruction and strikingly improved the profile reconstruction efficiency without sacrificing accuracy, compared with the primitive approach, by making use of the whole spectrum.

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Nanomanufacturing—Perspective and applications

Cited by 128 publications

References 220 publications

On-machine and in-process surface metrology for precision manufacturing

On-machine and in-process surface metrology for precision manufacturing

Microbial Nanotechnology: Challenges and Prospects for Green Biocatalytic Synthesis of Nanoscale Materials for Sensoristic and Biomedical Applications

Dependence-Analysis-Based Data-Refinement in Optical Scatterometry for Fast Nanostructure Reconstruction

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