Vijay T. John

Thermal stability and dispersion effectiveness of a gel-like surfactant mesophase for oil spill remediation

Olasehinde Owoseni, Yueheng Zhang, Arijit Bose, Vijay T. John

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A Targeted Mitigation Strategy for Freshwater Harmful Algal Blooms through the Release of a Small-Molecule Polyphenolic Algaecide from Clay Nanotubes

Pedram AziziHariri, Borui Wang, Monica Brady, Istiak Hossain et autres

Harmful algal blooms (HABs) caused by Microcystis aeruginosa (MC) pose serious threats to freshwater ecosystems, public health, and water treatment infrastructure. Here, we present a targeted mitigation technology involving flocculation and settling of MC using a flocculant, polyaluminum chloride (PAC), and a …

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Thermal Stability and Dispersion Effectiveness of a Gel-Like Surfactant Mesophase for Oil Spill Remediation

Olasehinde Owoseni, Yueheng Zhang, Arijit Bose, Vijay T. John

Comparative Evaluation of Antioxidant and Antitumour Activities of Curcuma-longa and Curcuma-aromatica: An Integrated Experimental and Computational Approach

Lovely Jacob Aloor, Tom Cherian, Vijay T. John, Seena Thomachan

Cancer is a major global health challenge, necessitating the discovery of effective and affordable therapeutic agents. Plant-derived natural products remain a key focus, with Curcuma longa (turmeric) and Curcuma aromatica (wild turmeric) recognised for their curcuminoid-rich phytochemistry. In this study, we comparatively …

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Mesoporous Silica Skin on Clay Nanotubes for Carbon Capture

Borui Wang, Oluwole Ajumobi, Jibao He, Julia A. Valla et autres

Amine-based adsorbents are considered extremely promising candidates for their efficacy in CO 2 capture. In this study, we explore the enhancement of CO 2 adsorption capacity through the development of a hierarchically porous material containing a mesoporous silica coating on halloysite nanotubes …

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A Simple Method to Clear Harmful Algal Blooms: Sprayable Foams with Algaecides and Flocculants

Pedram AziziHariri, Istiak Hossain, Faraz Burni, Srinivasa R. Raghavan et autres

High Resolution Image Download MS PowerPoint Slide Harmful algal blooms (HABs) pose significant challenges to coastal communities and economies worldwide. The annual occurrence of “red tide” along the Gulf of Mexico is caused by Karenia brevis (KB) during periods of eutrophication. KB …

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Modulating the Aqueous Micellar Reorganization of Sequence-Defined Ionic Peptoid Block Copolymers by Ionizable Monomer Position and Solution pH

Bailee N. Barrett, Pedram AziziHariri, Vijay T. John, Donghui Zhang

The micellar aggregation of singly charged sequence-defined ionic peptoid block copolymers can be finely tuned by adjusting the position of the ionizable monomer along the chain and varying the solution pH. The pH-induced structural reorganization of these micelles was found to depend …

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Synergetic Effects of Copyrolysis of HDPE and Various Biomass Feedstocks

Jeffrey R. Page, Yu Lei, Azeem Farinmade, Oluwole Ajumobi et autres

Sustainable fuels produced from biomass have drawn significant attention due to the low cost and abundance of biomass resources. Catalytic fast pyrolysis (CFP) of biomass can produce high bio-oil yields. However, bio-oils have a high oxygen content and cannot be used directly …

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An effective algaecide for the targeted destruction of Karenia brevis

Istiak Hossain, Briana Mays, Sydney L Hanhart, J. D. Hubble et autres

We address the targeted destruction of Karenia brevis using the algaecide calcium peroxide, in tandem with the flocculation and sinking of the species. The specific aspect of the approach is the incorporation of the algaecide within the floc to rapidly kill K. …

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Enhancing the Tribological Properties of Low-Density Polyethylene Using Hard Carbon Microfillers

Samuel E. Solomon, Rachel Hall, Jibao He, Vijay T. John et autres

The application of low-density polyethylene (LDPE) has been confined to packaging applications due to its inadequate mechanical and tribological characteristics. We propose enhancing LDPE by integrating hard carbon spheres (CSs) to improve its strength, frictional characteristics, and wear resistance. LDPE/CS composites were …

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Antivesiculation and Complete Unbinding of Tail-Tethered Lipids

Kuo‐Chih Shih, Geoffray Leriche, Chung‐Hao Liu, Jibao He et autres

We report the effect of tail-tethering on vesiculation and complete unbinding of bilayered membranes. Amphiphilic molecules of a bolalipid, resembling the tail-tethered molecular structure of archaeal lipids, with two identical zwitterionic phosphatidylcholine headgroups self-assemble into a large flat lamellar membrane, in contrast …

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Vesicle–micelle transitions driven by ROS, light and heat

Sai Nikhil Subraveti, Morine G. Nader, Pedram AziziHariri, Vijay T. John et autres

, a VMT can also be induced by irradiation with UV light or heating above a critical temperature. We explain the origin of the VMT in each case based on changes in the driving forces for amphiphile assembly.

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