Meghana Rawal

E Ink · Ink Materials Development

Organic nonlinear optical (ONLO) chromophores are used to make electro-optic devices. Traditional ONLO chromophores use a π-conjugated bridge to couple the electron acceptor and donor moieties. We have explored whether other types of conjugation can be used to make high-performance ONLO chromophores. We have found that cross-conjugated bridge struc...

Silicon photonic microring resonators have established their potential for label-free and low-cost biosensing applications. However, the long-term performance of this optical sensing platform requires robust surface modification and biofunctionalization. Herein, we demonstrate a conjugation strategy based on an organophosphonate surface coating and...

We studied the effect of a cross-conjugated bridging group (χC) on charge-transfer in a push-pull chromophore system. The hyperpolarizability of such molecules was found to be comparable to that of a fully π-conjugated molecule (πC) with the same donor and acceptor. The cross-conjugated moiety was then applied as a pendant to a fully π-conjugated c...

The purpose of this review is to discuss the challenges associated with the development of nanoparticle-based quality drug products in adhering to the principles of quality by design (QbD) and defining appropriate quality parameters towards successful product development. With the advent of nanotechnology into the pharmaceutical field, the novel fi...

The increased understanding of molecular aspects associated with chronic diseases, such as cancer and the role of tumor microenvironment, has led to the identification of endogenous and exogenous stimuli that can be exploited to devise “stimuli-responsive” materials for site-specific drug delivery applications. This book provides a comprehensive ac...

The use of organic nonlinear optical (ONLO) materials in electro-optic (EO) modulators requires that the active molecular components (chromophores) be acentrically oriented. The fundamental molecular constituents are in a condensed, glassy phase. Molecular orientation in such systems is typically achieved by applying a DC poling field to the glassy...

Our investigation explores the relationship between molecular structure and optical properties of compounds. Non-linear optical features are observed in molecules that lack a center of symmetry. These features have several applications in telecommunication, optical storage and all-optical signal-processing. The understanding of how structure correl...