Guillermo Aguilar

Scan strategy as a microstructure design variable in electron beam powder bed fusion of Inconel 718

Haojun You, Salman Mohammad Ismail, Guillermo Aguilar, Mohsen Taheri Andani

Digital holography interferometry for temperature mapping of thermocavitation induced by Continuous-Wave laser

Crysthal Alvarez, Carla Berrospe‐Rodriguez, Julio Aurelio Sarabia-Alonso, Soheil Kavian et autres

• Digital holography interferometry maps CW laser-induced thermocavitation in liquids. • Non-contact optical metrology enables temperature mapping at the micrometer scale. • Interferometry captures pre-cavitation heating and post-collapse thermal dynamics. • Raman and COMSOL validate heat transfer and concentration effects in solutions. …

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Titanium nitride nanoparticles for laser nanowarming in cryopreservation

Crysthal Alvarez, Desiree Gutierrez, Jordan Morrow, Julio Aurelio Sarabia-Alonso et autres

for up to 48 hours. In contrast, under the CPA formulation investigated, the GNR formulation required substantially higher mass concentrations to achieve successful laser nanowarming and cyst hatching. Overall, TiN nanomaterials provide a cost-effective, thermally robust, and tunable platform for laser nanowarming. …

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Direct Photochemical Patterning of Lithium Niobate Thin Films for Scalable Nonlinear Optical Metasurfaces

Rana Faryad Ali, Guillermo Aguilar

Lithium niobate is one of the most sought-after materials for nanophotonic devices, including frequency converters, modulators, and quantum light sources. Integration of lithium niobate into optical devices, however, is hampered by significant top-down fabrication challenges due to its exceptional chemical resistance. Scalable …

Mechanical characterization of Col1a1 osteogenesis imperfecta bone revealed altered mechanical stiffness heterogeneity across scales

Ellen Busschers, Hutomo Tanoto, Thế Dũng Bùi, Phuc Van Nguyen et autres

This study presents a novel integrated multiscale approach that combines whole-bone strain mapping, nanoscale mechanical testing, and compositional profiling to reveal how structural changes across scales impair bone quality in osteogenesis imperfecta (OI). OI is a genetic disorder caused by mutations in …

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Architectural Control of TiO 2 -GO Hybrids via Graphene Oxide Concentration: Balancing Adsorption and Photocatalysis

Francisco Javier Gómez Cano, Abdelhadi Kassiba, Subramaniam Velumani, Enrique J. Lima et autres

Efficient water remediation by titanium dioxidegraphene oxide$(\text{TiO}_{2}-\text{GO})$nanohybrids is governed by their nanoscale architecture, which controls both adsorption and photocatalytic behaviors. In this study, the influence of GO concentration on the structural and functional properties of$\text{TiO}_{2}$-GO hybrids was systematically examined. Hybrids containing 2, …

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The microstructure of metastatic bone lesions suggests tumor mediated alterations in bone mineralization

Zhan Shuang Xu, Carla Berrospe Rodríguez, Noah Dover, Guillermo Aguilar et autres

Breast, prostate and lung cancer cells frequently metastasize to bone, leading to disruption of the bone microstructure. This study utilized mechanical testing coupled with micro-CT imaging, digital volume correlation (DVC), and atomic force microscopy (AFM) nanomechanical testing to examine the mechanical property …

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Evaluating Teaching Culture Change within a Mechanical Engineering Department

Emma Edoga, Rujun Gao, Mindy E. Bergman, Arun R. Srinivasa et autres

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Femtosecond Single‐ and Double‐Pulse Fabrication of Periodic Nanostructures on Stainless Steel for Surface‐Enhanced Raman Spectroscopy

Balaji Baskar, Atiqul Islam Ahad, Carla Berrospe‐Rodriguez, Guillermo Aguilar

Laser-Induced Periodic Surface Structures In article number 2500145, Guillermo Aguilar and co-workers present femtosecond laser-induced patterning of surface structures (LIPSS) to create nanostructures with different morphologies on stainless steel. This enhances both the hydrophobicity and the density of plasmonic hotspots, improving SERS …

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Higher glass transition temperatures reduce thermal stress cracking in aqueous solutions relevant to cryopreservation

Soheil Kavian, Ronald L. Sellers, Gabriel Sánchez, Crysthal Alvarez et autres

Cryopreservation by vitrification could transform fields ranging from organ transplantation to wildlife conservation, but critical physical challenges remain in scaling this approach from microscopic to macroscopic systems, including the threat of fracture due to accumulated thermal stresses. Here, we provide experimental and …

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Investigating simultaneous mineralization across layers during tooth development using atomic force microscopy and Raman spectroscopy

Hutomo Tanoto, Jacob Zachary Chen, Carla Berrospe Rodríguez, Fernanda Espinoza et autres

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Femtosecond Single‐ and Double‐Pulse Fabrication of Periodic Nanostructures on Stainless Steel for Surface‐Enhanced Raman Spectroscopy

Balaji Baskar, Atiqul Islam Ahad, Carla Berrospe‐Rodriguez, Guillermo Aguilar

Fabrication of laser‐induced periodic surface structures (LIPSS) with near‐submicron length scale can greatly modify the surface‐related properties of materials as shown over the past decade. The hydrophobic properties can be combined with the dense nanostructures present in LIPSS to act as hotspots …

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