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High-throughput fabrication techniques for generating arbitrarily complex three-dimensional structures with nanoscale features are desirable across a broad range of applications. Two-photon lithography (TPL)-based submicrometer additive manufacturing is a promising candidate to fill this gap. However, the serial point-by-point writing scheme of TPL is too slow for many applications. Attempts at parallelization either do not have submicrometer resolution or cannot pattern complex structures. We overcome these difficulties by spatially and temporally focusing an ultrafast laser to implement a projection-based layer-by-layer parallelization. This increases the throughput up to three orders of magnitude and expands the geometric design space. We demonstrate this by printing, within single-digit millisecond time scales, nanowires with widths smaller than 175 nanometers over an area one million times larger than the cross-sectional area.
This article was published in the following journal.
Name: Science (New York, N.Y.)
Additive manufacturing at the macroscale has become a hot topic of research in recent years. It has been used by engineers for rapid prototyping and low-volume production. The development of such tech...
Additive manufacturing is creating a real revolution in every sector of human activity, including health care. The main reasons are a reduction of manufacturing cost, of waste production, and of energ...
A spectroscopic setup that enables the mapping of absorption and photoluminescence with submicrometer spatial resolution and high sensitivity is described. A photothermal heterodyne imaging pump/probe...
This paper presents a fast CO2 laser synthesis and writing technique - laser photothermal synthesis and writing (LPSW) - to generate and write a high concentration of unaggregated, spherical sub-10 nm...
Induced pluripotent stem cells (iPSCs) hold great potential to generate novel, curative cell therapy products. However, current methods to generate these novel therapies lack scalability, are labor-in...
This investigation is undertaken to evaluate the workflow and concomitant products to create full dentures by using Additive Manufacturing (AM) technology, i.e. Digital Light Processing™ ...
EndexoTM is an additive that is blended into the fiber solution during manufacturing of the hemodialyzer hollow fibers. The intended purpose of the additive is to increase blood compatibil...
Tumor patients receiving conventional tumor therapies may choose to receive additional homeopathic therapy. The patients are randomized into two groups receiving either additive homeopathi...
This study answers a U.S. Food and Drug Administration requirement for evaluation in people of a manufacturing lot of vaccine. Subjects receive one dose of one lot of vaccine. The antibodi...
In this self-control experiment, anesthesiologists without experiment of bronchoscopy working in anesthesiology department in Peking Union Medical College Hospital will receive a training ...
A chelating agent (CHELATING AGENTS) that sequesters a variety of polyvalent cations. It is used in pharmaceutical manufacturing and as a food additive.
Used formerly as antimicrobial food additive. It causes mutations in many cell cultures and may be carcinogenic.
An arsenical which has been used as a feed additive for enteric conditions in pigs and poultry. It causes blindness and is ototoxic and nephrotoxic in animals.
A highly toxic compound used as a gasoline additive. It causes acute toxic psychosis or chronic poisoning if inhaled or absorbed through the skin.
Corrosive oxidant, explosive; additive to diesel and rocket fuels; causes skin and lung irritation; proposed war gas. A useful reagent for studying the modification of specific amino acids, particularly tyrosine residues in proteins. Has also been used for studying carbanion formation and for detecting the presence of double bonds in organic compounds.