Search results for: Srinivas Mettu

Items from 1 to 11 out of 11 results

article

Polyphenol‐Induced Adhesive Liquid Metal Inks for Substrate‐Independent Direct Pen Writing

Md. Arifur Rahim, Franco Centurion, Jialuo Han, Roozbeh Abbasi, more

Advanced Functional Materials > 31 > 10 > n/a - n/a

Surface patterning of liquid metals (LMs) is a key processing step for LM‐based functional systems. Current patterning methods are substrate specific and largely suffer from undesired imperfections—restricting their widespread applications. Inspired by the universal catechol adhesion chemistry observed in nature, LM inks stabilized by the assembly of a naturally abundant polyphenol, tannic acid, has...

article

The effect of ultrasound treatment on the interaction of brine with pork meat proteins

Andrey Sergeev, Natalya Shilkina, Valery Tarasov, Srinivas Mettu, more

Ultrasonics Sonochemistry > 2020 > 61 > C

The objective of the study is to elucidate the effect of ultrasound treated salt solution on curing of pork meat. The interactions of salt (NaCl) solutions of 3 and 25% with the proteins of pork meat are studied. High intensity ultrasound operating at 20 kHz was used. The differential scanning calorimetry (DSC), NMR spin-spin relaxation time, unfrozen water and water diffusion coefficient measurements...

article

Rheological properties of concentrated slurries of harvested, incubated and ruptured Nannochloropsis sp. cells

Srinivas Mettu, Shunyu Yao, Sam Q. K. Law, Zheng Sun, more

BMC Chemical Engineering > 2019 > 1 > 1 > 1-11

Biorefining of microalgae biomass requires processing of high-solids (> 10%) slurries. To date there is little knowledge of how processes for weakening and rupturing microalgae cells affect the rheological properties of these materials. To fill this gap in the literature, the rheological properties of concentrated slurries of marine microalgae Nannochloropsis sp. were investigated as a function...

article

Emulsifying properties of ruptured microalgae cells: Barriers to lipid extraction or promising biosurfactants?

Sam Q.K. Law, Srinivas Mettu, Muthupandian Ashokkumar, Peter J. Scales, more

Colloids and Surfaces B: Biointerfaces > 2018 > 170 > C > 438-446

A systematic investigation of the emulsifying properties of ruptured algae cells was performed for the first time. The slurry of ruptured algae cells was separated into different biomass fractions, namely the cell debris, the delipidated debris, the serum, and the lipid. The interfacial interactions of these biomass fractions with a nonpolar solvent (e.g. hexane or hexadecane) were characterized using...

article

Rust‐Mediated Continuous Assembly of Metal–Phenolic Networks

Md. Arifur Rahim, Mattias Björnmalm, Nadja Bertleff‐Zieschang, Quinn Besford, more

Advanced Materials > 29 > 22 > n/a - n/a

The use of natural compounds for preparing hybrid molecular films—such as surface coatings made from metal–phenolic networks (MPNs)—is of interest in areas ranging from catalysis and separations to biomedicine. However, to date, the film growth of MPNs has been observed to proceed in discrete steps (≈10 nm per step) where the coordination‐driven interfacial assembly ceases beyond a finite time (≈1...

article

Temperature dependent mechanical properties of air, oil and water filled microcapsules studied by atomic force microscopy

Srinivas Mettu, Meifang Zhou, Blaise L. Tardy, Muthupandian Ashokkumar, more

Polymer > 2016 > 102 > C > 333-341

We measured the mechanical properties of air and oil(tetradecane)filled cross-linked lysozyme as well as water filled metal phenolate microcapsules using atomic force microscopy in the temperature range of 21–70 °C. The stiffness and modulus of the individual capsules were determined using Reissner's theory for indentation of thin elastic shells. We found that the stiffness and modulus of air filled...

article

Motion of Liquid Drops on Surfaces Induced by Asymmetric Vibration: Role of Contact Angle Hysteresis

Srinivas Mettu, Manoj K. Chaudhury

Langmuir > 2011 > 27 > 16 > 10327 - 10333

article

Stochastic Relaxation of the Contact Line of a Water Drop on a Solid Substrate Subjected to White Noise Vibration: Roles of Hysteresis

Srinivas Mettu, Manoj K. Chaudhury

Langmuir > 2010 > 26 > 11 > 8131 - 8140

article

Motion of Drops on a Surface Induced by Thermal Gradient and Vibration

Srinivas Mettu, Manoj K. Chaudhury

Langmuir > 2008 > 24 > 19 > 10833 - 10837

article

Brownian Motion of a Drop with Hysteresis Dissipation

Manoj K. Chaudhury, Srinivas Mettu

Langmuir > 2008 > 24 > 12 > 6128 - 6132

article

Momentum and heat transfer from an asymmetrically confined circular cylinder in a plane channel

Srinivas Mettu, Nishith Verma, R. P. Chhabra

Heat and Mass Transfer > 2006 > 42 > 11 > 1037-1048

Unsteady momentum and heat transfer from an asymmetrically confined circular cylinder in a plane channel is numerically investigated using FLUENT for the ranges of Reynolds numbers as 10≤Re≤500, of the blockage ratio as 0.1≤β≤0.4, and of the gap ratio as 0.125≤γ≤1 for a constant value of the Prandtl number of 0.744. The transition of the flow from steady to unsteady (characterized by critical Re)...

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