A5060266202- Molecular Junctions and Nanostructures
- Surface Modification and Superhydrophobicity
- Advanced Cellulose Research Studies
- Advanced Sensor and Energy Harvesting Materials
- Force Microscopy Techniques and Applications
- Natural Fiber Reinforced Composites
- Tactile and Sensory Interactions
- Nanofabrication and Lithography Techniques
- Polymer composites and self-healing
- Aerosol Filtration and Electrostatic Precipitation
- Conducting polymers and applications
- Adhesion, Friction, and Surface Interactions
- Polymer Nanocomposites and Properties
- Calcium Carbonate Crystallization and Inhibition
- biodegradable polymer synthesis and properties
- Luminescence and Fluorescent Materials
- Supramolecular Chemistry and Complexes
- Innovative Energy Harvesting Technologies
- Mechanical Behavior of Composites
- Dendrimers and Hyperbranched Polymers
- Per- and polyfluoroalkyl substances research
- Crystallography and molecular interactions
- Wood Treatment and Properties
- Pickering emulsions and particle stabilization
- Energy Harvesting in Wireless Networks
Louisiana State University
2014-2024
Louisiana State University Agricultural Center
2015-2016
Northeast Forestry University
2009-2016
Preparation of mechanically durable superwetting surfaces is imperative, yet challenging for the wide range real applications where high durability required. Mechanical wear on usually degrades weak roughness, leading to loss functions. In this study, wear-resistant superhydrophilic/underwater superoleophobic and superhydrophobic are prepared by anchoring reinforced coatings via adhesive-swelling adhesive-bonding processes, respectively. The results sandpaper abrasion (grit no. 600, 24 kPa)...
Images of water droplets on (a) pristine wood, (b) wood covered with composite particles, (c) modified stearic acid, and (d) superhydrophobic wood.
Bagasse flour (BF) was liquefied using bi-component polyhydric alcohol (PA) as a solvent and phosphoric acid catalyst in microwave reactor. The effect of BF to ratio reaction temperatures on the liquefaction extent characteristics products were evaluated. results revealed that almost 75% raw bagasse converted into liquid within 9 min at 150 °C with 1/4. hydroxyl values (LB) varied conditions. High temperature combining low resulted number for LB. molecular weight polydispersity LB from...
Visible light photoredox catalysis was combined with immersion particle lithography to prepare polynitrophenylene organic films on Au(111) surfaces, forming a periodic arrangement of nanopores. Surfaces masked mesospheres were immersed in solutions p-nitrobenzenediazonium tetrafluoroborate and irradiated blue LEDs the presence catalyst Ru(bpy)3(PF6)2 produce p-nitrophenyl radicals that graft onto gold substrates. Surface masks silica used protect small, discrete regions surface from...
Supramolecular Cu(II) complexes were prepared from two trifunctional β-diketone ligands. The ligands (CH3Si(phacH)3 and CH3Si(phprH)3, represented by LH3) contain three aryl-β-diketone moieties joined an organosilicon group. have the empirical formula Cu3L2, as expected for combinations of Cu2+ L3–. Several metal–organic polyhedra (MOPs) [Cu3L2]n are possible (n = 1–10); a dodecahedron (Cu30L20; n 10; estimated diameter ca. 5 nm) should be most stable because its internal bond angles would...
Protocols for nanopatterning porphyrins on Au(111) were developed based immersion particle lithography. Porphyrins with and without a central metal ion, 5,10,15,20-tetraphenyl-21H,23H-porphyrin (TPP) cobalt(II) (CoTPP), selected study, which spontaneously formed nanorod geometries depending concentration parameters. The elongated shapes of the nanorods offers an opportunity successive distance-dependent conductive probe atomic force microscopy (CP-AFM) measurements along length nanorods. To...
The solution-phase self-assembly of bidentate 16-[3,5-bis(mercapto-methyl)phenoxy]hexadecanoic acid (BMPHA) on Au(111) was studied using nano-fabrication protocols with scanning probe nanolithography and immersion particle lithography. Molecularly thin films BMPHA prepared by surface have potential application as spatially selective layers in sensor designs. Either monolayer or bilayer can be formed under ambient conditions, depending the parameters concentration intervals. Experiments...
The solution self-assembly of multidentate organothiols onto Au(111) was studied in situ using scanning probe nanolithography and time-lapse atomic force microscopy (AFM). Self-assembled monolayers (SAMs) prepared from dilute solutions thiols were found to assemble slowly, requiring more than six hours generate films. A clean gold substrate first imaged ethanolic media liquid AFM. Next, a 0.01 mM thiol injected into the cell. As time progressed, molecular-level details surface changes at...
Abstract Wood fiber reinforced polyamide 6 (PA6) and high‐density polyethylene (HDPE) blend composites were prepared via hot pressing. The PA6 was modified by lithium chloride (LiCl) for reducing the melting point. Crystallization analysis exhibited decrease of point (220°C to none) processing temperature (240°C 200°C) PA6. Thus, undesired discoloration degradation improved. LiCl in favor interfacial compatibility among PA6, HDPE, wood fiber. Also could enhance mechanical properties final...
ABSTRACT In this study, we used lithium chloride (LiCl) as a modifier to decrease the melting temperature ( T m ) of polyamide 6 (PA6), and then, fabricated wood‐fiber‐reinforced PA6–polypropylene (PP) blend composites via hot pressing. From crystallization analysis, exhibited lower processing compared PA6. Color Fourier transform infrared analyses showed that severe thermal degradation discoloration could be prevented by incorporation LiCl. LiCl had positive effects on mechanical properties...
Vibrational energy harvesters capture mechanical from ambient vibrations and convert the into electrical to power wireless electronic systems. Challenges exist in process of capturing vibrations. For example, resonant may be used improve output near their resonance, but narrow bandwidth makes them less suitable for applications with varying vibrational frequencies. Higher operating frequencies can increase output, many sources are characterized by lower frequencies, such as human motions....
Polyamide 6 (PA6) and high‐density polyethylene were blended with lithium chloride (LiCl) maleic anhydride (MAH), then mixed 15 wt% microcrystalline cellulose to prepare the composites via hot‐pressing technology. Crystallization analysis exhibited a decreased melting point of PA6 modification LiCl. The crystallographic forms transformed from semi‐crystalline an amorphous state, thus processing temperature (from 240 200°C). Both LiCl in‐situ grafting MAH had positive effects on mechanical...
Visible-light irradiation of phthalimide esters in the presence photosensitizer [Ru(bpy) 3 ] 2+ and stoichiometric reducing agent benzyl nicotinamide results formation alkyl radicals under mild conditions. This approach to radical generation has proven useful for synthesis small organic molecules. Herein, we demonstrate first time visible-light photosensitized deposition robust thin films on Au surfaces using as precursors. In particular, combine photosensitization with particle lithography...