University of Iowa Research Foundation

Hongtao Ding

Avik Samanta

Qinghua Wang

Ryan T Flynn

Yusung Kim

Bryan G Allen

Timothy J Waldron

Junyi Xia

Wuji Huang

Brennen N Wears

Ninggang Shen

Embodiments of the present invention are directed to a surface modified metal piece comprising a first major surface, wherein at least one portion of the first major surface: comprises the reaction product of a surface modifier; has a random micro- and nanoscale structure; and has at least one of a water contact angle when exposed to water of at least about 120° and a spectral reflectance of less than about 25% within the visible spectrum. Other embodiments relate to processes and methods for making such a surface modified metal piece.

Laser-based high-throughput surface nano-structuring (NHSN) process

The disclosure relates to maskless, laser-assisted methods for making a metal surface comprising at least one of hydrophobic and hydrophilic regions; and at least one of micro- and nanostructured regions.

Method for maskless patterning of metal alloys

The disclosure relates to a composite comprising a metal film having a first major surface and opposed second major surface, at least a portion of the metal film having a sheet resistance of at least 15 &#x3a9;/sq, an optical transmittance of at least 60% within the visible spectrum, and tunable bandpass filtering effect in the THz frequency range; a dielectric substrate comprising a first major surface and opposed second major surface; the metal film first major surface located on at least a portion of the dielectric substrate first major surface. The disclosure also relates to methods of making such composites and articles comprising such composites.

Transparent conducting surfaces for terahertz bandpass metamatertals and uses thereof

Systems and methods for low energy radiation x-ray radiation therapy system for use at a target within a cavity of a subject. In an aspect, the system uses an aperture shaping device used to shape the radiation beam from the low energy radiation source. In an aspect, the aperture shaping device includes a plurality of leaf assemblies which include leaves configured to form the aperture and engage the radiation beam. In an aspect, the present invention utilizes a geared mechanics approach to create an aperture using only one dial input. The design ensures that the field size of the collimator remains a constant shape as it is opened and closed. In an aspect, the overall size of the collimator may be scaled to accommodate various radiation therapy requirements.

System and method for an intensity modulated radiation therapy device

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Coralville, IA, United States of America

Hongtao Ding