Mahesh Ganesan

Alagappa University · Alagappa Institute of Skill Development

Information technology is permeating into all fields of a man's life. The fashion industry is no exception and is burgeoning ahead by embracing innovative technologies like augmented and virtual reality. Augmented reality (AR) overlays digital information on objects or place in the real world to enhance user experiences. AR is the newest tool that...

The apparel industry is one of the world's largest industries, generating around €1.5 trillion in annual revenues and employing over 50 million people. Often a catalyst for economic growth in largely agrarian economies transitioning into industrial production, the apparel sector is also responsible for high environmental impacts and social challeng...

Fungi such as Candida albicans exist in biofilm phenotypes, which present as viscoelastic materials; however, a method to measure linear viscoelastic moduli, yield stress, and yield strain is lacking. Characterization methods for fungal materials have been limited to techniques specific to particular industries. Here, we present a method to measure...

Fashion industry is an evolving industry-be it the fabrics, design, finish, technology, aesthetics or e-commerce. It is known for its exuberance in embracing the latest and bizarre trends. Augmented reality is a latest tool that the industry is using to entice the tech savvy consumers into the stores and ultimately the sale of the merchandise. Alte...

Theme IV: Challenges and opportunities vii. Revival of traditional art and craft by skill development programmes Abstract Traditional arts and crafts are the handmade tales that are quite often passed down to the younger generations of the practising rural families. Many of these exquisite Indian art forms are dying due to modernization and technol...

Traditionally brands relied on physical marketing strategies and treated e-commerce and brick-and-mortar stores as two separate channels. Over the years these two channels viz. the physical and digital have become so intertwined in the minds of the customers that brands have no choice but to work towards unifying the customer experience, product, a...

We use direct current (DC) electric fields in conjunction with ultraviolet light to self-assemble highly dense structures of colloidal ellipsoids with three-dimensional order and volume fraction as large as 67 %. Ellipsoidal phases of colloids are of fundamental interest because novel packing structures are predicted to occur at high volume fractio...

Smart textiles are fabrics that have been designed and manufactured to include technologies that provide the wearer with increased functionality. Though industrial exploitation of smart textile systems is still in its infancy, the technological implementation is increasing. These textiles have numerous potential applications, such as the ability to...

Smartphones are known to drive the digital era fashion. This paper explores the connect between the consumer and the digital fashion. Increasingly customers are banking on their smartphones for a variety of information, which is validated through various studies in the paper. It is established that mobile is emerging as a major retail channel. Reta...

We report the viscosity of semidilute solutions of a bacterially synthesized polysaccharide - a partially deacetylated poly-N-acetylglucosamine - as measured by microrheology. This polymer, commonly called polysaccharide intercellular adhesin (PIA), is synthesized by Staphylococcal strains; it is a principal component of the biofilms of these bacte...

Persistent staphylococcal infections often involve surface-associated communities called biofilms. Staphylococcus aureus biofilm development is mediated by the coordinated production of the biofilm matrix, which can be composed of polysaccharides, extracellular DNA (eDNA), and proteins including amyloid fibers. The nature of the interactions betwee...

We demonstrate that the microstructural and mechanical properties of bacterial biofilms can be created through colloidal self-assembly of cells and polymers, and thereby link the complex material properties of biofilms to well understood colloidal and polymeric behaviors. This finding is applied to soften and disassemble staphylococcal biofilms thr...

Biofilm-like bacterial constructs consisting of sub-micron bacterial cells and chitosan are tuned to create materials with distinct microstructural and mechanical features. While it is known that biofilms are viscoelastic in nature and the colloidal microstructure of biofilms can vary depending on their growth environment, little is known about the...

Measurement of the elastic modulus of soft, viscoelastic liquids with cavitation rheometry is demonstrated for specimens as small as 1 μl by application of elasticity theory and experiments on semi-dilute polymer solutions. Cavitation rheometry is the extraction of the elastic modulus of a material, E, by measuring the pressure necessary to create...

We report the application of low-voltage direct current (DC) electric fields to self-assemble close-packed colloidal crystals in non-aqueous solvents from colloidal spheres that vary in size from as large as 1.2 μm to as small as 0.1 μm. The assemblies are created rapidly (~ 2 minutes) from an initially low volume fraction colloidal particle suspen...

We evaluate the application of cavitation rheology to characterize the elasticity of biological soft matter that may be confined to volumes as small as 1 µL. Cavitation rheology, a technique developed by Zimberlin et. al (Soft Matter, 3(6), 765-767, 2007), is a simple, rapid method to characterize the mechanical properties of materials that can be...

Electric Field Induced Self-Assembly of Colloidal Particles Aayush A Shah1, Mahesh Ganesan2, Jennifer Jocz2, Joseph A. Ferrar2 and Michael J. Solomon1, 2 1 Macromolecular Science and Engineering, University of Michigan, Ann Arbor, MI 2 Chemical Engineering, University of Michigan, Ann Arbor, Ann Arbor, MI e-mail: aayushs@umich.edu We repor...

Biofilms are microbial communities that are characterized by the presence of a viscoelastic extracellular polymeric substance (EPS). Studies have shown that polysaccharides,along with proteins and DNA, are the main constituents of the EPS and play a dominant role in mediating its microstructure and rheological properties. Here, we investigate the p...

Biofilms are aggregates of bacteria encapsulated with a protective layer of extracellular polysaccharide (EPS). Staphylococcus epidermidis biofilms are frequent in hospital-related infections associated with contaminated medical devices. Studies have shown that NaCl can contribute to the overexpression of the ica operon, which plays a role in the p...