Sunaina Singh

• Doctoral Reseach Fellow
• University of Petroleum and Energy Studies

Acceptance Certificate TELECOM

This review provides a comprehensive analysis of the design, materials, fabrication techniques, and applications of flexible wearable antennas, with a primary focus on their roles in Wireless Body Area Networks (WBANs) and healthcare technologies. Wearable antennas are increasingly vital for applications that require seamless integration with the h...

This paper deals with the power quality improvement in a double stage solar photovoltaic (SPV) grid integrated system by an adaptive least mean absolute third (LMAT) control. This topology has advantages such as, (1) it has high efficiency, and (2) it provides an enhanced response. This SPV generating system consists of many components such as, a B...

Abstract This study deals with a new control for a double‐stage grid‐integrated solar photovoltaic array (SPVA)‐based energy generation system, which is based on adjoint least mean square (ALMS) control. This ALMS control algorithm has some new features: (1) it provides a fast rate of convergence, (2) harmonics mitigation ability, and (3) ease of i...

This paper deals with a multiple function three-phase single-stage solar PVEG (Photovoltaic Energy Generating) grid coupled system using D-STATCOM (Distribution Static Compensator) features with local linear/nonlinear loads. A delayed -Law proportionate normalized least mean square (DMPNLMS) control strategy is presented for DSTATCOM. The control t...

Over the last three decades, synthetic supramolecular systems involving porphyrins and related macrocycles have been well explored for numerous applications ranging from catalyst to biomedical to sensors. Advances in synthetic strategies for various porphyrinoids, the ability to functionalize them with many recognition groups, and their rich supram...

This study deals with a single‐stage photovoltaic (PV) grid‐tied system along with enhanced momentum least mean square (EMLMS) control algorithm, which extracts the fundamental components from the non‐linear load currents. Three‐phase voltage‐source converter with the EMLMS technique, feeds the solar PV power into the grid. Moreover, it is used to...

We report here an alternate redesigned five-step synthesis of 2,6-diacetamido-4-formylpyridine. The method described here is more convenient where this aldehyde is prepared in commercially viable quantities from simple and easy-to-use reagents and is a key compound required to prepare 5,10,15,20-Tetrakis(3,5-diacetamido-4-pyridyl)porphyrin (I). Thi...

This study presents the control of distribution static compensator (DSTATCOM) using band‐dependent variable step size (BD‐VSS) individual weighting factor with sign error based adaptive filter for power quality improvement in a weak distribution grid. Here, the proposed algorithm is used for estimation of fundamental active weight components from t...

Herein we describe the design, efficient synthesis, and photophysical properties of two macrocycle dyes for cancer theranostics. This study compares a glycosylated chlorin with a glycosylated phthalocyanine designed to specifically target cancer, wherein the photophysical properties enable both fluorescence imaging and the sensitization of the form...

Photodynamic therapy (PDT) is a non-invasive treatment widely applied to different cancers. The goal of PDT is the photo-induced destruction of cancer cells by the activation of different cell death mechanisms, including apoptosis and/or necrosis. Recent efforts focusing on understanding the mechanisms of cell death activated by PDT find that it de...

Self-assembled monolayers of thiol terminated conjugated diacetylenes can be cross-linked using ultraviolet light to form highly conjugated polydiacetylenic conductive monolayers [1]; however, the reported syntheses of the diacetylene monomers present numerous problems that prevent the wide spread application of these in functional materials. We re...

Nitro-porphyrins are an important class of commercial dyes with a range of potential applications. The nitro group is known to dramatically affect the photophysics of the porphyrin, but there are few systematic investigations of the contributing factors. To address this deficiency, we present spectroscopic studies of a series of nitro-porphyrins, a...

Abstract: DFT implemented in ADF 2012.01 was applied to 9 bi-nuclear transition metal carbonyls: [M2(CO)10], (M=Mn,Tc, Re), [Co(CO)4 - M - Co(CO)4], (M=Zn,Cd, Hg), [Fe2(CO)9], [terminal Co2(CO)8] and [bridged Co2(CO)8] to obtain the Shielding Constants (σ M, σ 13C, σ 17O), Chemical Shifts (δ M, δ13C, δ17O), two diamagnetic and four paramagnetic con...

The use of glycosylated porphyrins, phthalocyanines, and other porphyrinoids for diagnostics and therapeutics are discussed. Porphyrins and phthalocyanines (Pcs) are the most common and efficient photosensitizers (PSs) used in photodynamic therapy (PDT) due to their absorption in the visible range of the electromagnetic spectrum, long-lived triplet...

The photophysical properties of a chlorin, isobacteriochlorin, and bacteriochlorin built on a core tetrapentafluorophenylporphyrin (TPPF20 ) and the non-hydrolysable para thioglycosylated conjugates of these chromophores are presented. The photophysical characterization of these compounds was done in three different solvents to correlate to differe...

Self-organized organic nanoparticles (ONP) are adaptive to the environmental reaction conditions. ONP of fluorous alkyl iron(III) porphyrin catalytically oxidize cyclohexene to the allylic oxidation products. In contrast, the solvated metalloporphyrin yields both allylic oxidation and epoxidation products. The ONP system facilitates a greener react...

A water soluble zinc(II) phthalocyanine symmetrically appended with eight thioglucose units was synthesized from commercially available hexadecafluorophthalocyaninatozinc(II) by controlled nucleophilic substitution of the peripheral fluoro groups. The photophysical properties and cancer cell uptake studies of this nonhydrolyzable thioglycosylated p...

Porphyrins appended with four rigid hydrogen bonding motifs on the meso positions were synthesized and self-assembled into a cofacial cage with four complementary bis(decyl)melamine units in dry solvents. The hydrocarbon chains on the melamine mediate the formation of nanofilms on surfaces as the solvent slowly evaporates.

The facile synthesis and photophysical properties of three nonhydrolyzable thioglycosylated porphyrinoids are reported. Starting from meso-perfluorophenylporphyrin, the nonhydrolyzable thioglycosylated porphyrin (PGlc₄), chlorin (CGlc₄), isobacteriochlorin (IGlc₄), and bacteriochlorin (BGlc₄) can be made in 2-3 steps. The ability to append a wide r...

Porphyrins bearing uracyl motifs at the four meso positions self-organize via homo-complementary hydrogen bonds and pi-stacking into nanofibers, nanorods and thin films on mica and glass surfaces depending on deposition conditions.

Porphyrins bearing sugars and other motifs are proposed for a variety of therapeutic applications. Non-hydrolysable glyco conjugates of porphyrins can be formed in rapid, room temperature reacting in greater than 90% yields from tetraperfluorophenyporphyrin. Additional functional groups can be appended using the same chemistry but different stoichi...