A5049019954- Advanced Sensor and Energy Harvesting Materials
- Solid-state spectroscopy and crystallography
- Acoustic Wave Resonator Technologies
- Nonlinear Optical Materials Research
- Advanced Materials and Mechanics
- Luminescence and Fluorescent Materials
- Photochromic and Fluorescence Chemistry
- Crystallography and molecular interactions
- Crystallization and Solubility Studies
- Surface Modification and Superhydrophobicity
- X-ray Diffraction in Crystallography
- Photoreceptor and optogenetics research
- High-pressure geophysics and materials
- Supramolecular Self-Assembly in Materials
- Quantum chaos and dynamical systems
- Boron and Carbon Nanomaterials Research
- Liquid Crystal Research Advancements
- Supramolecular Chemistry and Complexes
- Ferroelectric and Piezoelectric Materials
- Silicone and Siloxane Chemistry
- Nonlinear Dynamics and Pattern Formation
- Nanopore and Nanochannel Transport Studies
- Subcritical and Supercritical Water Processes
- Heat transfer and supercritical fluids
- Thermoelastic and Magnetoelastic Phenomena
New York University
2023-2025
New York University Abu Dhabi
2022-2024
United Arab Emirates University
2019
Pakistan Institute of Engineering and Applied Sciences
2017
Dynamic organic crystals are rapidly gaining traction as a new class of smart materials for energy conversion, however, they only capable very small strokes (<12%) and most them operate through energetically cost-prohibitive processes at high temperatures. We report on the exceptional performance an actuating material with exceedingly large stroke that can reversibly convert into work around room temperature. When transitioning 295-305 K heating 265-275 cooling ferroelectric guanidinium...
Abstract Various mechanical effects have been reported with molecular materials, yet organic crystals capable of multiple dynamic are rare, and at present, their performance is worse than some the common actuators. Here, we report a confluence different across three polymorphs an crystal that can efficiently convert light into work. Upon photodimerization, acicular polymorph I display output work densities about 0.06–3.94 kJ m −3 , comparable to ceramic piezoelectric Prismatic same form...
The growing freshwater scarcity has caused increased use of membrane desalination seawater as a relatively sustainable technology that promises to provide long-term solution for the increasingly water-stressed world. However, currently used membranes on an industrial scale are inevitably prone fouling results in decreased flux and necessity periodic chemical cleaning, incur unacceptably high energy cost while also leaving environmental footprint with unforeseeable consequences. This extant...
One of the typical haptic elements are natural hairy structures that animals and plants rely on for feedback. Although these hair sensors an admirable inspiration, development active flow sensing components having low elastic moduli high aspect ratios remains a challenge. Here, we report new approach based flexible, thin optically transmissive organic crystal ratio, which is stamped with fluorescent dye tracking. When subjected to gas exposed laser, bends due exerted pressure acts as optical...
In the field of materials science, dynamic molecular crystals have attracted significant attention as a novel class energy-transducing materials. However, their development into becoming fully functional actuators remains somewhat limited. This study focuses on one family crystalline and delves exploring efficiency conversion light energy to mechanical work. A simple setup is designed determine set performance indices anthracene-based an exemplary crystals. The ability these reversibly bend...
Deciphering the effect of small changes in crystal packing and intermolecular interactions on type magnitude mechanical motion is central to manipulation macrodynamic behavior dynamic crystals as smart materials. Here, we describe a peculiar example where both flexibility photomechanical molecular can be altered by single chemical substitution. Specifically, demonstrate that an organic switches from plastic bending elastic/plastic changing functional group thiophene ring methyl (crystal 1)...
Dynamic organic crystals are becoming recognized as some of the fastest materials for converting light or heat to mechanical work. The degree deformation and response time any actuating material often exclusive each other; however, both factors influence material's overall performance limits. Unlike polymers, whose disordered structures not conducive rapid energy transfer, cooperative phase transitions in dynamic molecular that amenable concerted martensitic-like structure switching could...
Abstract Martensitic transformations are well documented in metals and alloys where the atoms connected via metallic bonds rearrange concertedly rapidly; however, due to metal atoms, these materials inherently very dense add significant weight bulkiness actuating devices. Here, remarkably rapid lattice switching of molecular martensitic is reported rate structural transformation exceeds other phase transitions several orders magnitude. With a determined speed range 0.3–0.6 m s −1 , new...
Crystals can be found in many shapes but do not usually grow as spirals. Here we show that applying a non-uniform layer of polymer blend onto slender centimeter-size organic crystals prestrains the into hybrid dynamic elements with spiral respond reversibly to environmental variations temperature or humidity by curling. Exposure results partial uncurling within several seconds, whereby logarithmic-type crystal is transformed an Archimedean one. Conical helices obtained lateral pulling...
The effectiveness of microwave-assisted synthesis 5,10,15,20-tetraphenylporphyrin and its corresponding to metal complexes (Bi (III), Zn (II) Ni (II)) are described. Moreover, the synthesized metalloporphyrins that were obtained with reasonable yields characterized using UV-vis, 1H-NMR IR.
Abstract One of the typical haptic elements are natural hairy structures that animals and plants rely on for feedback. Although these hair sensors an admirable inspiration, development active flow sensing components having low elastic moduli high aspect ratios remains a challenge. Here, we report new approach based flexible, thin optically transmissive organic crystal ratio, which is stamped with fluorescent dye tracking. When subjected to gas exposed laser, bends due exerted pressure acts...
In the present study, a numerical investigation was made using ANSYS Fluent code to analyze heat transfer supercritical water in 2 × rod bundle. The geometry consists of two channels separated by solid body. Water moves downward first channel and then upward second channel, which is connected through U-turns. This results cooling bundle, stationed channel. outer diameter heated 10 mm. Two turbulence models, i.e., k–ε (RNG) k–ω (SST), were benchmarked against experimental data. It found out...
Following a well-established practice of publishing commentaries to articles other authors who work on materials that were earlier studied by them (n.b. six published comments[1-6]), Marek Szafra\'nski(MS) and Andrzej Katrusiak (AK) have filed the preprint server arXiv manuscript entitled "On giant deformation ferroelectricity guanidinium nitrate"[7] with comments our article "Exceptionally high density ferroelectric dynamic organic crystal around room temperature" in Nature Communications...