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Articles 1 - 9 of 9
Full-Text Articles in Entire DC Network
Fabrication Of Multifunctional Electronic Textiles Using Oxidative Restructuring Of Copper Into A Cu-Based Metal–Organic Framework, Aileen M. Eagleton, Michael Ko, Robert M. Stolz, Nataliia Vereshchuk, Zheng Meng, Lukasz Mendecki, Adelaide M. Levenson, Connie Huang, Katherine C. Macveagh, Akbar Mahdavi-Shakib, John J. Mahle, Gregory W. Peterson, Brian G. Frederick, Katherine A. Mirica
Fabrication Of Multifunctional Electronic Textiles Using Oxidative Restructuring Of Copper Into A Cu-Based Metal–Organic Framework, Aileen M. Eagleton, Michael Ko, Robert M. Stolz, Nataliia Vereshchuk, Zheng Meng, Lukasz Mendecki, Adelaide M. Levenson, Connie Huang, Katherine C. Macveagh, Akbar Mahdavi-Shakib, John J. Mahle, Gregory W. Peterson, Brian G. Frederick, Katherine A. Mirica
New Hampshire EPSCoR
This paper describes a novel synthetic approach for the conversion of zero-valent copper metal into a conductive two-dimensional layered metal–organic framework (MOF) based on 2,3,6,7,10,11-hexahydroxytriphenylene (HHTP) to form Cu3(HHTP)2. This process enables patterning of Cu3(HHTP)2 onto a variety of flexible and porous woven (cotton, silk, nylon, nylon/cotton blend, and polyester) and non-woven (weighing paper and filter paper) substrates with microscale spatial resolution. The method produces conductive textiles with sheet resistances of 0.1–10.1 MΩ/cm2, depending on the substrate, and uniform conformal coatings of MOFs on textile swatches with strong interfacial contact capable of withstanding chemical and physical stresses, such as detergent …
Sensor Technologies For Quality Control In Engineered Tissue Manufacturing, Mary Clare Mccorry, Kenneth F. Reardon, Marcie Black, Chrysanthi Williams, Greta Babakhanova, Jeffrey M. Halpern, Sumona Sarkar, Nathan S. Swami, Katherine A. Mirica, Sarah Boermeester, Abbie Underhill
Sensor Technologies For Quality Control In Engineered Tissue Manufacturing, Mary Clare Mccorry, Kenneth F. Reardon, Marcie Black, Chrysanthi Williams, Greta Babakhanova, Jeffrey M. Halpern, Sumona Sarkar, Nathan S. Swami, Katherine A. Mirica, Sarah Boermeester, Abbie Underhill
New Hampshire EPSCoR
The use of engineered cells, tissues, and organs has the opportunity to change the way injuries and diseases are treated. Commercialization of these groundbreaking technologies has been limited in part by the complex and costly nature of their manufacture. Process-related variability and even small changes in the manufacturing process of a living product will impact its quality. Without real-time integrated detection, the magnitude and mechanism of that impact are largely unknown. Real-time and non-destructive sensor technologies are key for in-process insight and ensuring a consistent product throughout commercial scale-up and/or scale-out. The application of a measurement technology into a manufacturing …
Protocol For Deposition Of Conductive Oxides Onto 3d-Printed Materials For Electronic Device Applications, Julia E. Huddy, William J. Scheideler
Protocol For Deposition Of Conductive Oxides Onto 3d-Printed Materials For Electronic Device Applications, Julia E. Huddy, William J. Scheideler
New Hampshire EPSCoR
Additively manufactured (AM) three-dimensional (3D) mesostructures can be designed to enhance mechanical, thermal, or optical properties, driving future device applications at the micron to millimeter scale. We present a protocol for transforming AM mesostructures into 3D electronics by growing nanoscale conducting films on 3D-printed polymers. In this generalizable approach, we describe steps to utilize precision thermal atomic layer deposition (ALD) of conducting, semiconducting, and dielectric metal oxides. This can be applied to ultrasmooth, customizable photopolymer lattices printed by high-resolution microstereolithography. For complete details on the use and execution of this protocol, please refer to Huddy et al. (2022).
Epitaxial Self-Assembly Of Interfaces Of 2d Metal–Organic Frameworks For Electroanalytical Detection Of Neurotransmitters, Robert M. Stolz, Anna F. Kolin, Brunno C. Rocha, Anna Brinks, Aileen M. Eagleton, Lukasz Mendecki, Harish Vashisth, Katherine A. Mirica
Epitaxial Self-Assembly Of Interfaces Of 2d Metal–Organic Frameworks For Electroanalytical Detection Of Neurotransmitters, Robert M. Stolz, Anna F. Kolin, Brunno C. Rocha, Anna Brinks, Aileen M. Eagleton, Lukasz Mendecki, Harish Vashisth, Katherine A. Mirica
New Hampshire EPSCoR
This paper identifies the electrochemical properties of individual facets of anisotropic layered conductive metal–organic frameworks (MOFs) based on M3(2,3,6,7,10,11-hexahydroxytriphenylene)2 (M3(HHTP)2) (M = Co, Ni). The electroanalytical advantages of each facet are then applied toward the electrochemical detection of neurochemicals. By employing epitaxially controlled deposition of M3(HHTP)2 MOFs on electrodes, the contribution of the basal plane ({001} facets) and edge sites ({100} facets) of these MOFs can be individually determined using electrochemical characterization techniques. Despite having a lower observed heterogeneous electron transfer rate constant, the {001} facets of the M3(HHTP)2 systems prove more selective and sensitive for the detection of dopamine …
Designing An Interchangeable Multi-Material Nozzle System For The 3d Bioprinting Process, Cartwright Nelson, Slesha Tuladhar, Md Habib
Designing An Interchangeable Multi-Material Nozzle System For The 3d Bioprinting Process, Cartwright Nelson, Slesha Tuladhar, Md Habib
New Hampshire EPSCoR
Three-dimensional bioprinting is a rapidly growing field attempting to recreate functional tissues for medical and pharmaceutical purposes. Development of functional tissue requires deposition of multiple biomaterials encapsulating multiple cell types i.e. bio-ink necessitating switching ability between bio-inks. Existing systems use more than one print head to achieve this complex interchangeable deposition, which decreases efficiency, structural integrity, and accuracy. In this research, we developed a nozzle system capable of switching between multiple bio-inks with continuous deposition ensuring the minimum transition distance so that precise deposition transitioning can be achieved. Finally, the effect of rheological properties of different bio-material compositions on the …
Self-Assembly In Mixtures Of Charged Lobed Particles, Arpita Srivastava, Brunno C. Rocha, Harish Vashisth
Self-Assembly In Mixtures Of Charged Lobed Particles, Arpita Srivastava, Brunno C. Rocha, Harish Vashisth
New Hampshire EPSCoR
We report coarse-grained Langevin dynamics simulations of homogeneous mixtures of lobed colloidal particles with opposite charges. We show that dumbbell, trigonal planar, tetrahedral, square planar, trigonal bipyramidal, and octahedral shaped particles form distinct self-assemblies including chains, sheets, crystalline, and spherical structures. The dumbbell and square planar particles predominantly form chains and sheets while other particles form network-like self-assembled morphologies. At higher temperatures and lower charges, non-planar particles form three-dimensional aggregates. We further report on packing arrangements of particles which lead to differences in porosities within self-assembled morphologies. Our results show that the trigonal planar particles form larger porous structures. The …
Uav And Structure-From-Motion Photogrammetry Enhance River Restoration Monitoring: A Dam Removal Study, Alexandra D. Evans, Kevin H. Gardner, Scott Greenwood, Brett Still
Uav And Structure-From-Motion Photogrammetry Enhance River Restoration Monitoring: A Dam Removal Study, Alexandra D. Evans, Kevin H. Gardner, Scott Greenwood, Brett Still
New Hampshire EPSCoR
Dam removal is a river restoration technique that has complex landscape-level ecological impacts. Unmanned aerial vehicles (UAVs) are emerging as tools that enable relatively affordable, repeatable, and objective ecological assessment approaches that provide a holistic perspective of restoration impacts and can inform future restoration efforts. In this work, we use a consumer-grade UAV, structure-from-motion (SfM) photogrammetry, and machine learning (ML) to evaluate geomorphic and vegetation changes pre-/post-dam removal, and discuss how the technology enhanced our monitoring of the restoration project. We compared UAV evaluation methods to conventional boots-on-ground methods throughout the Bellamy River Reservoir (Dover, NH, USA) pre-/post-dam removal. We …
Transforming 3d-Printed Mesostructures Into Multimodal Sensors With Nanoscale Conductive Metal Oxides, Julia E. Huddy, Md Saifur Rahman, Andrew B. Hamlin, Youxiong Ye, William J. Scheideler
Transforming 3d-Printed Mesostructures Into Multimodal Sensors With Nanoscale Conductive Metal Oxides, Julia E. Huddy, Md Saifur Rahman, Andrew B. Hamlin, Youxiong Ye, William J. Scheideler
New Hampshire EPSCoR
Additively manufactured (AM) three-dimensional (3D) mesostructures exhibit geometrically optimal mechanical, thermal, and optical properties that could drive future microrobotics, energy harvesting, and biosensing technologies at the micrometer to millimeter scale. We present a strategy for transforming AM mesostructures into 3D electronics by growing nanoscale conducting films on 3D-printed polymers. This highly generalizable method utilizes precision atomic layer deposition (ALD) of conducting metal oxides on ultrasmooth photopolymer lattices printed by high-resolution microstereolithography. We demonstrate control of 3D electronic transport by tuning conformal growth of ultrathin amorphous and crystalline conducting metal oxides. To understand the scaling of 3D electrical properties, we apply …
Bimetallic Two-Dimensional Metal–Organic Frameworks For The Chemiresistive Detection Of Carbon Monoxide, Aylin Aykanat, Zheng Meng, Robert M. Stolz, Colin T. Morrell, Katherine A. Mirica
Bimetallic Two-Dimensional Metal–Organic Frameworks For The Chemiresistive Detection Of Carbon Monoxide, Aylin Aykanat, Zheng Meng, Robert M. Stolz, Colin T. Morrell, Katherine A. Mirica
New Hampshire EPSCoR
This paper describes the demonstration of a series of heterobimetallic, isoreticular 2D conductive metal–organic frameworks (MOFs) with metallophthalocyanine (MPc, M=Co and Ni) units interconnected by Cu nodes towards low-power chemiresistive sensing of ppm levels of carbon monoxide (CO). Devices achieve a sub-part-per-million (ppm) limit of detection (LOD) of 0.53 ppm toward CO at a low driving voltage of 0.1 V. MPc-based Cu-linked MOFs can continuously detect CO at 50 ppm, the permissible exposure limit required by the Occupational Safety and Health Administration (OSHA), for multiple exposures, and realize CO detection in air and in humid environment. Diffuse reflectance infrared Fourier …