A5008239261- Advanced Materials and Mechanics
- Ruminant Nutrition and Digestive Physiology
- Advanced Sensor and Energy Harvesting Materials
- Micro and Nano Robotics
- Supramolecular Self-Assembly in Materials
- Modular Robots and Swarm Intelligence
- Reproductive Physiology in Livestock
- Clostridium difficile and Clostridium perfringens research
- Photochromic and Fluorescence Chemistry
- Animal health and immunology
- Gut microbiota and health
- 2D Materials and Applications
- Liquid Crystal Research Advancements
- Polymer composites and self-healing
- Turfgrass Adaptation and Management
- Advanced Theoretical and Applied Studies in Material Sciences and Geometry
- Graphene research and applications
- Plant and fungal interactions
- Photoreceptor and optogenetics research
- Pickering emulsions and particle stabilization
- Surface Modification and Superhydrophobicity
- Fluid Dynamics and Mixing
- Neurogenetic and Muscular Disorders Research
- Metamaterials and Metasurfaces Applications
- Innovative Microfluidic and Catalytic Techniques Innovation
Massachusetts Institute of Technology
2023-2025
Georgia Institute of Technology
2025
Jilin University
2025
Harvard University
2018-2024
Lawrence Livermore National Laboratory
2022
Princeton University
2022
Harvard University Press
2021
University of Manitoba
2009-2020
Xidian University
2012
Subacute ruminal acidosis (SARA) is a metabolic disease in dairy cattle that occurs during early and mid-lactation has traditionally been characterized by low rumen pH, but lactic acid does not accumulate as acute acidosis. It hypothesized factors such increased gut permeability, bacterial lipopolysaccharides, inflammatory responses may have role the etiology of SARA. However, little known about nature microbiome In this study, we analyzed 64 samples taken from eight lactating Holstein using...
Abstract 3D printable and reconfigurable liquid crystal elastomers (LCEs) that reversibly shape‐morph when cycled above below their nematic‐to‐isotropic transition temperature ( T NI ) are created, whose actuated shape can be locked‐in via high‐temperature UV exposure. By synthesizing LCE‐based inks with light‐triggerable dynamic bonds, printing harnessed to locally program director alignment light used enable controlled network reconfiguration without requiring an imposed mechanical field....
Harvesting largely ignored and wasted electromagnetic (EM) energy released by electronic devices converting it into direct current (DC) electricity is an attractive strategy not only to reduce EM pollution but also address the ever-increasing crisis. Here we report synthesis of nanoparticle-templated graphene with monodisperse staggered circular nanopores enabling EM-heat-DC conversion pathway. We experimentally theoretically demonstrate that this nanoporous structure alters graphene's...
The nature of weaning, considered the most stressful and significant transition experienced by dairy calves, influences ability a calf to adapt dramatic dietary shift, thus, can influence severity production losses through weaning transition. However, effects various feeding strategies on development rumen or fecal microbiota across are yet be examined. Here we characterized pre- post-weaning ruminal microbiomes Holstein calves exposed two different strategies, gradual (step-down) abrupt. We...
Abstract Two-dimensional (2D) superlattices, formed by stacking sublattices of 2D materials, have emerged as a powerful platform for tailoring and enhancing material properties beyond their intrinsic characteristics. However, conventional synthesis methods are limited to pristine sublattices, posing significant practical challenge when it comes chemically modified sublattices. Here we report chemical method that overcomes this creating unique graphene superlattice, with monodisperse,...
Significance The range of allowed deformation modes currently described for the actuation microstructures is limited. In this work we introduce magnetic-field–guided encoding highly controlled molecular anisotropy into 3D liquid-crystalline elastomer capable displaying unique multiresponsive, shape-changing behaviors. richness predetermined and self-regulated deformations region-specific motions in these microstructural arrays gives rise to physicochemical insights, as well potential...
The prevalence of subacute ruminal acidosis (SARA) in dairy cows is high with large impact on economy and welfare. Its current field diagnosis based point pH measurements by oral probe or rumenocentesis. These techniques are invasive inaccurate, better markers for the SARA needed. goal this study was to evaluate clinical signs investigate use blood, faecal urinary parameters as indicators SARA. Six lactating, rumen cannulated, Danish Holstein were used a cross-over three periods. first...
Effects of subacute ruminal acidosis (SARA) challenges on the bacteria in rumen fluid, cecal digesta, and feces dairy cows were determined using 16S rRNA gene pyrosequencing real-time quantitative PCR. Six non-lactating Holstein with cannulas cecum used a 3 × Latin square arrangement treatments. During first wk each experimental period, received control diet containing 70% forages dry matter (DM) basis. In 4 one three diets: (1) diet; (2) which 34% dietary DM was replaced pellets ground...
Abstract Nature provides many examples of the benefits nanoscopic surface structures in areas adhesion and antifouling. Herein, design, fabrication, characterization liquid crystal elastomer (LCE) films are presented with nanowire that exhibit tunable stimuli‐responsive deformations enhanced properties. The LCE shown to curl toward side nanowires when stimulated by heat or organic solvent vapors. In contrast, a droplet same is placed on film, it curls away from due nanowire‐induced capillary...
The aim of this study was to investigate the effects two feed supplements on rumen bacterial communities heifers fed a high grain diet. Six Holstein-Friesian received one following dietary treatments according Latin square design: no supplement (control, C), 60 g/day fumarate-malate (organic acid, O) and 100 polyphenol-essential oil (P). Rumen fluid analyzed assess microbial population using Illumina sequencing quantitative real time PCR. P treatment had highest number observed species (P <...
Abstract Background Effects of Saccharomyces cerevisiae fermentation products (SCFP) on rumen microbiota were determined in vitro and vivo under a high depressed pH. The trial the effects Original XPC NutriTek (Diamond V, Cedar Rapids, IA) at doses 1.67 2.33 g/L, respectively, abundances bacteria pH (> 6.3) (5.8–6.0) using quantitative PCR (qPCR). In eight rumen-cannulated lactating dairy cows used cross-over design. Cows randomly assigned to SCFP treatments (Original XPC, Diamond or...
Geometric reconfigurations in cellular structures have recently been exploited to realize adaptive materials with applications mechanics, optics, and electronics. However, the achievable symmetry breakings corresponding types of deformation related functionalities remained rather limited, mostly due fact that macroscopic geometry is generally co-aligned molecular anisotropy constituent material. To address this limitation, microstructures are fabricated out liquid crystalline elastomers...
Ambidirectionality, which is the ability of structural elements to move beyond a reference state in two opposite directions, common nature. However, conventional soft materials are typically limited single, unidirectional deformation unless complex hybrid constructs used. We exploited combination mesogen self-assembly, polymer chain elasticity, and polymerization-induced stress design liquid crystalline elastomers that exhibit mesophases: chevron smectic C (cSmC) A (SmA). Inducing...
Photoresponsive liquid crystalline elastomers (LCEs) constitute ideal actuators for soft robots because their light-induced macroscopic shape changes can be harnessed to perform specific articulated motions. Conventional LCEs, however, do not typically exhibit complex modes of bending and twisting necessary sophisticated maneuvers. Here, we model LCE microposts encompassing side-chain mesogens oriented along a magnetically programmed nematic director, azobenzene cross-linkers, which...
Abstract Various forms of intelligent light‐controlled soft actuators and robots rely on advanced material architectures bionic systems to enable programmable remote actuation multifunctionality. Despite advancements, significant challenges remain in developing that can effectively mimic the low‐intensity, wide‐wavelength light signal sensing processing functions observed living organisms. Herein, we report a design strategy integrates light‐responsive artificial synapses (AS) with liquid...
Abstract The burgeoning demand for efficient photoelectric devices has ignited a fervent exploration of strategies regulating their performance. Herein, the enhancement and polarity switching in photoresponse MoS 2 photovoltaic with asymmetric electrodes are showcased by employing pressure band engineering strategy. Specifically, Pt/MoS /Ag setup escalates from A W⁻¹ at 0.5 GPa to 4 2.3 GPa, showcasing twofold enhancement, while displaying successive decrease under higher pressure....
ConspectusSynthetic structures that undergo controlled movement are crucial building blocks for developing new technologies applicable to robotics, healthcare, and sustainable self-regulated materials. Yet, programming motion is nontrivial, particularly at the microscale it remains a fundamental challenge. At macroscale, can be by conventional electric, pneumatic, or combustion-based machinery. nanoscale, chemistry has taken strides in enabling molecularly fueled movement. Yet between,...
Our work introduces a simple strategy for tailoring hierarchical anisotropy in microactuators using thermoresponsive liquid crystalline elastomers, thereby enabling versatile multimodal actuation.
Various forms of ecological monitoring and disease diagnosis rely upon the detection amphiphiles, including lipids, lipopolysaccharides, lipoproteins, at ultralow concentrations in small droplets. Although assays based on droplets’ wettability provide promising options some cases, their reliance measurements surface bulk properties whole droplets (e.g., contact angles, tensions) makes it difficult to monitor trace amounts these amphiphiles within small-volume samples. Here, we report a...
The aim of this study was to determine the ability two feed additives, a fumarate-malate (FM) and polyphenol-essential oil mixture (PM), in attenuating drop ruminal pH metabolic immune response resulting from an excessively high grain diet. Six heifers were used 3 × Latin square experiment fed low starch (LS) diet for 14 d, followed by (HS) 8 d (NDF 33.6%, 30.0% DM). In last 5 days each period, barley meal added decrease rumen pH. During HS feeding all animals randomly assigned one following...
We study the rendezvous data collection problem for Mobile Element (ME) in heterogeneous sensor networks where generation rates of sensors are distinct. The link quality is instable our network model and sensory cannot be aggregated when transmitting. able to efficiently collect wide within a given delay bound; meanwhile eliminates energy bottleneck prolong its lifetime. For case study, we consider trajectory planning both Relay Sink on tree-shaped network. In ME's must pass through sink...