Sudarson Sekhar Sinha

Scopus Publications

Insights into the Growth of Ternary WSSe Nanotubes in an Atmospheric CVD Reactor
R. Rosentsveig, M. B. Sreedhara, S. S. Sinha, I. Kaplan-Ashiri, O. Brontvein, Y. Feldman, I. Pinkas, K. Zheng, I. E. Castelli, R. Tenne
Inorganic Chemistry, 2023
The synthesis of complex new nanostructures is challenging but also bears the potential for observing new physiochemical properties and offers unique applications in the long run. High-temperature synthesis of ternary WSe2xS2(1–x) (denoted as WSSe) nanotubes in a pure phase and in substantial quantities is particularly challenging, requiring a unique reactor design and control over several parameters, simultaneously. Here, the growth of WSSe nanotubes with the composition 0 ≤ x < 1 from W18O49 nanowhiskers in an atmospheric chemical vapor deposition (CVD) flow reactor is investigated. The oxide precursor powder is found to be heavily agglomerated, with long nanowhiskers decorating the outer surface of the agglomerates and their core being enriched with oxide microcrystallites. The reaction kinetics with respect to the chalcogen vapors varies substantially between the two kinds of oxide morphologies. Insights into the chemical reactivity and diffusion kinetics of S and Se within W18O49 nanowhishkers and the micro-oxide crystallites were gained through detailed microscopic, spectroscopic analysis of the reaction products and also through density functional theory (DFT) calculations. For safety reasons, the reaction duration was limited to half an hour each. Under these circumstances, the reaction was completed for some 50% of the nanotubes and the other half remained with thick oxide core producing new WOx@WSSe core–shell nanotubes. Furthermore, the selenium reacted rather slowly with the WOx nanowhiskers, whereas the more ionic and smaller sulfur atoms were shown to diffuse and react faster. The yield of the combined hollow and core–shell nanotubes on the periphery of the agglomerated oxide was very high, approaching 100% in parts of the reactor boat. The nanotubes were found to be very thin (∼80% with a diameter <40 nm). The optical properties of the nanotubes were studied, and almost linear bandgap modulation was observed with respect to the selenium content in the nanotubes. This investigation paves the way for further scaling up the synthesis and for a detailed study of the different properties of WSSe nanotubes.
Process parameter optimization for the detoxification of emerging environmental pollutant, PPD
Swati Maiti, Sudarson Sekhar Sinha, Haim Suchowski, Mukesh Singh
Journal of Hazardous Materials Advances, 2023
Paraphenylenediamine (PPD) is an aromatic compound widely used in hair dye, tattoos, plastic, and rubber industry. The effluent of these industries may express an adverse effect onhe entire ecosystem as PPD is reported as a toxic, and environmental hazard. Since the usage has increased, the removal of PPD from the environment is essential. The present study reports the detoxification of PPD using the bacterial strain in an eco-friendly manner at low cost, with an in-depth study of the mechanism of detoxification and optimization of process parameters which will be helpful for designing a bioreactor in the future. Process parameters are optimized here using Taguchi method with the help of ‘MINITAB 18’. Finally, the experiment is conducted in optimized conditions at 30 mg/ml Sugarcane Bagasse Powder (SBP), 0.2 mg/ml Dye Degrading Bacteria-I (DDB I), 0.2 mg/ml PPD at 30 oC and pH 5 for 12 h, and then biotransformation was confirmed by toxicological studies. Though acetylation is the only pathway of detoxification of PPD is reported yet, substantial detoxification of PPD was observed without observing the signature of acetylated PPD in FTIR, and mass analysis. This study enlightens the alternate pathway for detoxification of PPD which can be used for the removal of PPD from the environment.
Light-Induced Wavelength Dependent Self Assembly Process for Targeted Synthesis of Phase Stable 1D Nanobelts and 2D Nanoplatelets of CsPbI3 Perovskites
Avijit Pramanik, Sudarson Sekhar Sinha, Kaelin Gates, Jing Nie, Fengxiang X Han, Paresh Chandra Ray
ACS Omega, 2023
Despite black cubic phase α-CsPbI3 nanocrystals having an ideal bandgap of 1.73 eV for optoelectronic applications, the phase transition from α-CsPbI3 to non-perovskite yellow δ-CsPbI3 phase at room temperature remains a major obstacle for commercial applications. Since γ-CsPbI3 is thermodynamically stable with a bandgap of 1.75 eV, which has great potential for photovoltaic applications, herein we report a conceptually new method for the targeted design of phase stable and near unity photoluminescence quantum yield (PLQY) two-dimensional (2D) γ-CsPbI3 nanoplatelets (NPLs) and one-dimensional (1D) γ-CsPbI3 nanobelts (NBs) by wavelength dependent light-induced assembly of CsPbI3 cubic nanocrystals. This article demonstrates for the first time that by varying the excitation wavelengths, one can design air stable desired 2D nanoplatelets or 1D nanobelts selectively. Our experimental finding indicates that 532 nm green light-driven self-assembly produces phase stable and highly luminescent γ-CsPbI3 NBs from CsPbI3 nanocrystals. Moreover, we show that a 670 nm red light-driven self-assembly process produces stable and near unity PLQY γ-CsPbI3 NPLs. Systematic time-dependent microscopy and spectroscopy studies on the morphological evolution indicates that the electromagnetic field of light triggered the desorption of surface ligands from the nanocrystal surface and transformation of crystallographic phase from α to γ. Detached ligands played an important role in determining the morphologies of final structures of NBs and NPLs from nanocrystals via oriented attachment along the [110] direction initially and then the [001] direction. In addition, XRD and fluorescence imaging data indicates that both NBs and NPLs exhibit phase stability for more than 60 days in ambient conditions, whereas the cubic phase α-CsPbI3 nanocrystals are not stable for even 3 days. The reported light driven synthesis provides a simple and versatile approach to obtain phase pure CsPbI3 for possible optoelectronic applications.
Nanotubes and fullerene-like nanoparticles from layered transition metal dichalcogenides: Why do they form and what is their significance?
M. B. Sreedhara, S. S. Sinha, A. Zak, L. Yadgarov, R. Tenne
Zeitschrift Fur Anorganische Und Allgemeine Chemie, 2022
One‐dimensional (1D) analogues of two‐dimensional (2D) layered materials, especially nanotubes exhibit unique properties, which are distinct from the 2D flakes. The nanotubes and fullerene‐like nanoparticles from layered transition metal dichalcogenides (TMDs) are one of the prime foci of this field in the last 30 years. In this concise review, we present the advancement made in the TMDs nanotubes and fullerene‐like nanoparticles over the last few years. The synthesis and structure of TMDs nanotubes such as WS2/MoS2 are briefly described. The mechanical properties of single WS2 nanotubes were examined by in‐situ electron microscopy techniques and are briefly discussed. Their reinforcement effects in polymer composites are also presented, as well as their superior tribological behavior. The unique optoelectronic properties of WS2 (MoS2) nanotubes are presented. Thus, the bulk photovoltaic effect and superconductivity exhibited by WS2 nanotubes, which are a manifestation of their 1D structure and low symmetry, are revisited briefly. The strong light‐matter interaction of nanotubes resulting in polariton quasiparticles and their evolution as a function of nanotube diameter are explained. Last but not least, a new family of misfit layered nanotubes and their exceptional physical properties are briefly touched upon.
Second-Order Photoinduced Reflectivity for Retrieval of the Dynamics in Plasmonic Nanostructures
Dror Hershkovitz, Uri Arieli, Sudarson Sekhar Sinha, Ori Cheshnovsky, Haim Suchowski
Nano Letters, 2022
Measuring the change in reflectivity (ΔR) using the traditional pump–probe approach can monitor photoinduced ultrafast dynamics in matter, yet relating these dynamic to physical processes for complex systems is not unique. By applying a simple modification to the classical pump–probe technique, we simultaneously measure both the first and second order of ΔR. These additional data impose new constraints on the interpretation of the underlying ultrafast dynamics. In the first application of the approach, we probe the dynamics induced by a pump laser on the local-surface plasmon resonance (LSPR) in gold nanoantennas. Measurements of ΔR over several picoseconds and a wide range of probe wavelengths around the LSPR peak are followed by data fitting using the two-temperature model. The constraints, imposed by the second-order data, lead us to modify the model and force us to include the contribution of nonthermalized electrons in the early stages of the dynamics.
Nanotubes from Ternary WS2(1- x)Se2 xAlloys: Stoichiometry Modulated Tunable Optical Properties
M. B. Sreedhara, Yana Miroshnikov, Kai Zheng, Lothar Houben, Simon Hettler, Raul Arenal, Iddo Pinkas, Sudarson S. Sinha, Ivano E. Castelli, Reshef Tenne
Journal of the American Chemical Society, 2022
Nanotubes of transition metal dichalcogenides such as WS2 and MoS2 offer unique quasi-1D properties and numerous potential applications. Replacing sulfur by selenium would yield ternary WS2(1–x)Se2x (0 ≤ x ≤ 1; WSSe) nanotubes, which are expected to reveal strong modulation in their absorption edge as a function of selenium content, xSe. Solid WO2.72 oxide nanowhiskers were employed as a sacrificial template to gain a high yield of the nanotubes with a rather uniform size distribution. Though sulfur and selenium belong to the same period, their chemical reactivity with oxide nanowhiskers differed appreciably. Here, the closed ampoule technique was utilized to achieve the completion of the solid–vapor reaction in short time scales instead of the conventional flow reactor method. The structure and chemical composition of the nanotubes were analyzed in detail. X-ray and electron diffractions indicated a systematic modulation of the WSSe lattice upon increasing the selenium content. Detailed chemical mapping showed that the sulfur and selenium atoms are distributed in random positions on the anion lattice site of the nanotubes. The optical excitonic features and absorption edges of the WSSe nanotubes do not vary linearly with the composition xSe, which was further confirmed by density functional theory calculations. The WSSe nanotubes were shown to exhibit strong light–matter interactions forming exciton–polariton quasiparticles, which was corroborated by finite-difference time-domain simulations. Transient absorption analysis permitted following the excited state dynamics and elucidating the mechanism of the strong coupling. Thus, nanotubes of the ternary WSSe alloys offer strong band gap tunability, which would be useful for multispectral vision devices and other optoelectronic applications.
Bio-Conjugated Magnetic-Fluorescence Nanoarchitectures for the Capture and Identification of Lung-Tumor-Derived Programmed Cell Death Lighand 1-Positive Exosomes
Avijit Pramanik, Shamily Patibandla, Ye Gao, Lauren R. Corby, Md Mhahabubur Rhaman, Sudarson Sekhar Sinha, Paresh Chandra Ray
ACS Omega, 2022
As per the American Cancer Society, lung cancer is the leading cause of cancer-related death worldwide. Since the accumulation of exosomal programmed cell death ligand 1 (PD-L1) is associated with therapeutic resistance in programmed cell death 1 (PD-1) and PD-L1 immunotherapy, tracking PD-L1-positive (PD-L1 (+)) exosomes is very important for predicting anti-PD-1 and anti-PD-L1 therapy for lung cancer. Herein, we report the design of an anti-PD-L1 monoclonal antibody-conjugated magnetic-nanoparticle-attached yellow fluorescent carbon dot (YFCD) based magnetic-fluorescence nanoarchitecture for the selective separation and accurate identification of PD-L1-expressing exosomes. In this work, photostable YFCDs with a good photoluminescence quantum yield (23%) were synthesized by hydrothermal treatment. In addition, nanoarchitectures with superparamagnetic (28.6 emu/g), biocompatible, and selective bioimaging capabilities were developed by chemically conjugating the anti-PD-L1 antibody and YFCDs with iron oxide nanoparticles. Importantly, using human non-small-cell lung cancer H460 cells lines, which express a high amount of PD-L1 (+) exosomes, A549 lung cancer cells lines, which express a low amount of PD-L1 (+) exosomes, and the normal skin HaCaT cell line, which does not express any PD-L1 (+) exosomes, we demonstrate that nanoarchitectures are capable of effectively separating and tracking PD-L1-positive exosomes simultaneously. Furthermore, as a proof-of-concept of clinical setting applications, a whole blood sample infected with PD-L1 (+) exosomes was analyzed, and our finding shows that this nanoarchitecture holds great promise for clinical applications.
Blocking SARS-CoV-2 Delta Variant (B.1.617.2) Spike Protein Receptor-Binding Domain Binding with the ACE2 Receptor of the Host Cell and Inhibiting Virus Infections Using Human Host Defense Peptide-Conjugated Graphene Quantum Dots
Avijit Pramanik, Poonam C. Sharma, Shamily Patibandla, Ye Gao, Vinod Ruppa-Kasani, Jagruti Goli, Animesh Kumar, Abhirup Chatterjee, Sudarson Sekhar Sinha, John T. Bates, Michael A. Bierdeman, Ritesh Tandon, Paresh Chandra Ray
ACS Omega, 2022
The emergence of double mutation delta (B.1.617.2) variants has dropped vaccine effectiveness against SARS-CoV-2 infection. Although COVID-19 is responsible for more than 5.4 M deaths till now, more than 40% of infected individuals are asymptomatic carriers as the immune system of the human body can control the SARS-CoV-2 infection. Herein, we report for the first time that human host defense neutrophil α-defensin HNP1 and human cathelicidin LL-37 peptide-conjugated graphene quantum dots (GQDs) have the capability to prevent the delta variant virus entry into the host cells via blocking SARS-CoV-2 delta variant (B.1.617.2) spike protein receptor-binding domain (RBD) binding with host cells’ angiotensin converting enzyme 2 (ACE2). Experimental data shows that due to the binding between the delta variant spike protein RBD and bioconjugate GQDs, in the presence of the delta variant spike protein, the fluorescence signal from GQDs quenched abruptly. Experimental quenching data shows a nonlinear Stern–Volmer quenching profile, which indicates multiple binding sites. Using the modified Hill equation, we have determined n = 2.6 and the effective binding affinity 9 nM, which is comparable with the ACE2–spike protein binding affinity (8 nM). Using the alpha, beta, and gamma variant spike-RBD, experimental data shows that the binding affinity for the delta B.1.617.2 variant is higher than those for the other variants. Further investigation using the HEK293T-human ACE2 cell line indicates that peptide-conjugated GQDs have the capability for completely inhibiting the entry of delta variant SARS-CoV-2 pseudovirions into host cells via blocking the ACE2–spike protein binding. Experimental data shows that the inhibition efficiency for LL-37 peptide- and HNP1 peptide-attached GQDs are much higher than that of only one type of peptide-attached GQDs.
Dynamical Nature of Exciton-Polariton Coupling in WS2 Nanoparticles
Sudarson Sekhar Sinha, Bojana Višić, Archana Byregowda, Lena Yadgarov
Israel Journal of Chemistry, 2022
Semiconducting transition metal dichalcogenides can be synthesized in a wide range of structures and geometries, including closed cage nanostructures, such as nanotubes or fullerene‐like nanoparticles (NSs). The latter is especially intriguing due to the stability, enhanced light‐matter interactions, and ability to sustain exciton‐polaritons (EPs) in ambient conditions, i. e., strong coupling of excitonic resonances to the optical cavity. Here we investigate the dynamics of EPs formation in WS2 NPs in the time domain using femtosecond transient extinction spectroscopy. We develop a gamut of analytical methods and models with time‐dependent parameters to extract the underlying non‐equilibrium dynamics of EPs formation. We find that the formation of EPs in WS2 NPs is not instantaneous but a gradual process that occurs only after several picoseconds. Specifically, for the short delay times, the light‐matter interaction is guided by excitonic absorption, whereas for the long delay times, the process is controlled by polaritonic scattering. We discover that the coupling strength is a time‐dependent entity and not a constant as is usually defined. Namely, there is a nonlinear coupling between excitonic and external modes and a notable transition from weak to strong coupling limit. Our results show that the time‐dependent phenomenological dynamical model quantitatively reproduces the nonlinear dynamical coupling as well as the effects of the pump fluence on the coupling strength.
Electrical Properties of LaS-TaS2 Misfit Layered Compound Nanotubes
Dalit Stolovas, Ronit Popovitz‐Biro, Sudarson S. Sinha, Ora Bitton, Dan Shahar, Reshef Tenne, Ernesto Joselevich
Israel Journal of Chemistry, 2022
Several nanotubular structures from chalcogenide‐based misfit layer compounds (MLC) were reported in recent years. MLCs consist of a stacking of two alternating and dissimilar (2D) atomic layers, e. g. one with rocksalt structure (MX) and the other‐ TX2 – with hexagonal layer structure. The layers are held together by weak van der Waals forces, i. e. they can be exfoliated with scotch‐tape. Furthermore, in analogy to intercalation compounds, partial charge transfer between the layers with dissimilar work function results also in polar forces between the MX and TX2 layers. The mismatch between the alternating (asymmetric) layers and the seaming of the dangling bonds at the edges drives them to form tubular (and also scroll‐like) structures. New structural characterization whereby the nanotubes were bisected into lamella via focused ion beam and examined by TEM, are reported.
Second-order transient photo-induced reflectivity changes for retrieval of plasmonic nanostructures' dynamics
Optics Infobase Conference Papers, 2022
Second order transient photo-induced reflectivity changes for retrieval of plasmonic nanostructures' dynamics
2022 Conference on Lasers and Electro Optics CLEO 2022 Proceedings, 2022
Human ACE2 Peptide-Attached Plasmonic-Magnetic Heterostructure for Magnetic Separation, Surface Enhanced Raman Spectroscopy Identification, and Inhibition of Different Variants of SARS-CoV-2 Infections
Avijit Pramanik, Justin Mayer, Sudarson Sekhar Sinha, Poonam C. Sharma, Shamily Patibandla, Ye Gao, Lauren R. Corby, John T. Bates, Michael A. Bierdeman, Ritesh Tandon, Ram Seshadri, Paresh Chandra Ray
ACS Applied Bio Materials, 2022
Why do nanocrystals of 2D materials form nanotubes and why is that important?
Sudarson S. Sinha, M.B. Sreedhara, Reshef Tenne
Nano Today, 2021
MoS2and WS2Nanotubes: Synthesis, Structural Elucidation, and Optical Characterization
Sudarson S. Sinha, Lena Yadgarov, Sokhrab B. Aliev, Yishay Feldman, Iddo Pinkas, Pallellappa Chithaiah, Saptarshi Ghosh, Alexander Idelevich, Alla Zak, Reshef Tenne
Journal of Physical Chemistry C, 2021
YS-TaS2and YxLa1- xS-TaS2(0 ≤ x ≤ 1) Nanotubes: A Family of Misfit Layered Compounds
Simon Hettler, M. B. Sreedhara, Marco Serra, Sudarson S. Sinha, Ronit Popovitz-Biro, Iddo Pinkas, Andrey N. Enyashin, Reshef Tenne, Raul Arenal
ACS Nano, 2020
Nanotubes from Two-Dimensional Materials in Contemporary Energy Research: Historical and Perspective Outlook
Ana Albu-Yaron, Sudarson S. Sinha, Reshef Tenne
ACS Energy Letters, 2020
Size-Dependent Control of Exciton–Polariton Interactions in WS2 Nanotubes
Sudarson S. Sinha, Alla Zak, Rita Rosentsveig, Iddo Pinkas, Reshef Tenne, Lena Yadgarov
Small, 2020
Microbial decolorization and detoxification of emerging environmental pollutant: Cosmetic hair dyes
Swati Maiti, Sudarson Sekhar Sinha, Mukesh Singh
Journal of Hazardous Materials, 2017
Nanoarchitecture Based SERS for Biomolecular Fingerprinting and Label-Free Disease Markers Diagnosis
Sudarson Sekhar Sinha, Stacy Jones, Avijit Pramanik, Paresh Chandra Ray
Accounts of Chemical Research, 2016
Influence of aptamer-enclosed silver nanocluster on the prevention of biofilm by bacillus thuringiensis
Bidisha Sengupta, Sudarson Sekhar Sinha, Bianca L. Garner, Istvan Arany, Christa Corley, Keith Cobb, Elrica Brown, Paresh Chandra Ray
Nanoscience and Nanotechnology Letters, 2016
Three-dimensional (3D) plasmonic hot spots for label-free sensing and effective photothermal killing of multiple drug resistant superbugs
Stacy Jones, Sudarson Sekhar Sinha, Avijit Pramanik, Paresh Chandra Ray
Nanoscale, 2016
Mechanistic Study of the Synergistic Antibacterial Activity of Combined Silver Nanoparticles and Common Antibiotics
Hua Deng, Danielle McShan, Ying Zhang, Sudarson S. Sinha, Zikri Arslan, Paresh C. Ray, Hongtao Yu
Environmental Science and Technology, 2016
Designing a multicolor long range nanoscopic ruler for the imaging of heterogeneous tumor cells
Suhash Reddy Chavva, Bhanu Priya Viraka Nellore, Avijit Pramanik, Sudarson Sekhar Sinha, Stacy Jones, Paresh Chandra Ray
Nanoscale, 2016
Development of Multifunctional Fluorescent-Magnetic Nanoprobes for Selective Capturing and Multicolor Imaging of Heterogeneous Circulating Tumor Cells
Avijit Pramanik, Aruna Vangara, Bhanu Priya Viraka Nellore, Sudarson Sekhar Sinha, Suhash Reddy Chavva, Stacy Jones, Paresh Chandra Ray
ACS Applied Materials and Interfaces, 2016
Multimodal Nonlinear Optical Imaging of Live Cells Using Plasmon-Coupled DNA-Mediated Gold Nanoprism Assembly
Sudarson Sekhar Sinha, Stacy Jones, Teresa Demeritte, Suhash Reddy Chavva, Yongliang Shi, Jasmine Burrell, Avijit Pramanik, Paresh Chandra Ray
Journal of Physical Chemistry C, 2016
Analysis of cytotoxicity and genotoxicity on E. coli, human blood cells and Allium cepa suggests a greater toxic potential of hair dye
Swati Maiti, Kankaayan Sasmal, Sudarson Sekhar Sinha, Mukesh Singh
Ecotoxicology and Environmental Safety, 2016
Quantum Brownian Motion in a Spin-Bath
Concepts and Methods in Modern Theoretical Chemistry Statistical Mechanics, 2016
Separation and imaging of circulating tumor cells using hybrid graphene oxide based nanotechnology
Circulating Tumor Cells Ctcs Detection Methods Health Impact and Emerging Clinical Challenges, 2016
Hair Dye-DNA interaction: Plausible cause of mutation
Swati Maiti, Sudarson Sinha, Mukesh Singh
Cosmetics, 2015
Bioconjugated Gold Nanoparticle Based SERS Probe for Ultrasensitive Identification of Mosquito-Borne Viruses Using Raman Fingerprinting
Amber M. Paul, Zhen Fan, Sudarson S. Sinha, Yongliang Shi, Linda Le, Fengwei Bai, Paresh C. Ray
Journal of Physical Chemistry C, 2015
Hybrid Theranostic Platform for Second Near-IR Window Light Triggered Selective Two-Photon Imaging and Photothermal Killing of Targeted Melanoma Cells
Christine Tchounwou, Sudarson Sekhar Sinha, Bhanu Priya Viraka Nellore, Avijit Pramanik, Rajashekhar Kanchanapally, Stacy Jones, Suhash Reddy Chavva, Paresh Chandra Ray
ACS Applied Materials and Interfaces, 2015
Bio-Conjugated CNT-Bridged 3D Porous Graphene Oxide Membrane for Highly Efficient Disinfection of Pathogenic Bacteria and Removal of Toxic Metals from Water
Bhanu Priya Viraka Nellore, Rajashekhar Kanchanapally, Francisco Pedraza, Sudarson Sekhar Sinha, Avijit Pramanik, Ashton T Hamme, Zikri Arslan, Dhiraj Sardar, Paresh Chandra Ray
ACS Applied Materials and Interfaces, 2015
Hybrid Graphene Oxide Based Plasmonic-Magnetic Multifunctional Nanoplatform for Selective Separation and Label-Free Identification of Alzheimer's Disease Biomarkers
Teresa Demeritte, Bhanu Priya Viraka Nellore, Rajashekhar Kanchanapally, Sudarson Sekhar Sinha, Avijit Pramanik, Suhash Reddy Chavva, Paresh Chandra Ray
ACS Applied Materials and Interfaces, 2015
Multifunctional Biocompatible Graphene Oxide Quantum Dots Decorated Magnetic Nanoplatform for Efficient Capture and Two-Photon Imaging of Rare Tumor Cells
Yongliang Shi, Avijit Pramanik, Christine Tchounwou, Francisco Pedraza, Rebecca A. Crouch, Suhash Reddy Chavva, Aruna Vangara, Sudarson Sekhar Sinha, Stacy Jones, Dhiraj Sardar, Craig Hawker, Paresh Chandra Ray
ACS Applied Materials and Interfaces, 2015
Long-range two-photon scattering spectroscopy ruler for screening prostate cancer cells
Sudarson Sekhar Sinha, Dilip K. Paul, Rajashekhar Kanchanapally, Avijit Pramanik, Suhash Reddy Chavva, Bhanu Priya Viraka Nellore, Stacy J. Jones, Paresh Chandra Ray
Chemical Science, 2015
Aptamer-conjugated graphene oxide membranes for highly efficient capture and accurate identification of multiple types of circulating tumor cells
Bhanu Priya Viraka Nellore, Rajashekhar Kanchanapally, Avijit Pramanik, Sudarson Sekhar Sinha, Suhash Reddy Chavva, Ashton Hamme, Paresh Chandra Ray
Bioconjugate Chemistry, 2015
3D widefield light microscope image reconstruction without dyes
S. Larkin, J. Larson, C. Holmes, M. Vaicik, M. Turturro, A. Jurkevich, S. Sinha, T. Ezashi, G. Papavasiliou, E. Brey, T. Holmes
Progress in Biomedical Optics and Imaging Proceedings of SPIE, 2015
Antimicrobial peptide-conjugated graphene oxide membrane for efficient removal and effective killing of multiple drug resistant bacteria
Rajashekhar Kanchanapally, Bhanu Priya Viraka Nellore, Sudarson Sekhar Sinha, Francisco Pedraza, Stacy J. Jones, Avijit Pramanik, Suhash Reddy Chavva, Christine Tchounwou, Yongliang Shi, Aruna Vangara, Dhiraj Sardar, Paresh Chandra Ray
Rsc Advances, 2015
Aptamer-conjugated theranostic hybrid graphene oxide with highly selective biosensing and combined therapy capability
Bhanu Priya Viraka Nellore, Avijit Pramanik, Suhash Reddy Chavva, Sudarson Sekhar Sinha, Christen Robinson, Zhen Fan, Rajashekhar Kanchanapally, Justin Grennell, Ivy Weaver, Ashton T. Hamme, Paresh Chandra Ray
Faraday Discussions, 2014
Quantum dissipation in a spin bath; Applications to chemical dynamics
Arnab Ghosh, Sudarson Sekhar Sinha, Deb Shankar Ray
Proceedings of the Indian National Science Academy, 2014
Theranostic graphene oxide for prostate cancer detection and treatment
Suhash Reddy Chavva, Avijit Pramanik, Bhanu Priya Viraka Nellore, Sudarson Sekhar Sinha, Brian Yust, Rajashekhar Kanchanapally, Zhen Fan, Rebecca A Crouch, Anant Kumar Singh, Bethany Neyland, Kimberly Robinson, Xuemei Dai, Dhiraj Sardar, Yuefeng Lu, Paresh Chandra Ray
Particle and Particle Systems Characterization, 2014
Detection of melamine from food in parts per quadrillion level using functionalized graphene oxide- gold nanoparticle hybrid SERS platform
Food Poisoning Outbreaks Bacterial Sources and Adverse Health Effects, 2014
Accurate identification and selective removal of rotavirus using a plasmonic-magnetic 3D graphene oxide architecture
Zhen Fan, Brian Yust, Bhanu Priya Viraka Nellore, Sudarson Sekhar Sinha, Rajashekhar Kanchanapally, Rebecca A. Crouch, Avijit Pramanik, Suhash Reddy Chavva, Dhiraj Sardar, Paresh Chandra Ray
Journal of Physical Chemistry Letters, 2014
Nanoscopic optical rulers beyond the FRET distance limit: Fundamentals and applications
Paresh Chandra Ray, Zhen Fan, Rebecca A. Crouch, Sudarson Sekhar Sinha, Avijit Pramanik
Chemical Society Reviews, 2014
Highly efficient and excitation tunable two-photon luminescence platform for targeted multi-color MDRB imaging using graphene oxide
Avijit Pramanik, Zhen Fan, Suhash Reddy Chavva, Sudarson Sekhar Sinha, Paresh Chandra Ray
Scientific Reports, 2014
Extremely high two-photon absorbing graphene oxide for imaging of tumor cells in the second biological window
Avijit Pramanik, Suhash Reddy Chavva, Zhen Fan, Sudarson Sekhar Sinha, Bhanu Priya Viraka Nellore, Paresh Chandra Ray
Journal of Physical Chemistry Letters, 2014
Multifunctional hybrid graphene oxide for label-free detection of malignant melanoma from infected blood
Rajashekhar Kanchanapally, Zhen Fan, Anant Kumar Singh, Sudarson Sekhar Sinha, Paresh Chandra Ray
Journal of Materials Chemistry B, 2014
Graphene oxide-gold nanocage hybrid platform for trace level identification of nitro explosives using a raman fingerprint
Rajashekhar Kanchanapally, Sudarson Sekhar Sinha, Zhen Fan, Madan Dubey, Eugene Zakar, Paresh Chandra Ray
Journal of Physical Chemistry C, 2014
Gold nanocage assemblies for selective second harmonic generation imaging of cancer cell
Teresa Demeritte, Zhen Fan, Sudarson Sekhar Sinha, Jinsong Duan, Ruth Pachter, Paresh C. Ray
Chemistry A European Journal, 2014
Influence of noise shape on excitation kinetics of impurity doped quantum dots
Suvajit Pal, Sudarson Sekhar Sinha, Jayanta Ganguly, Manas Ghosh
Manufacturing Review, 2014
Excitation kinetics of impurity doped quantum dot driven by Gaussian white noise: Interplay with external field
Suvajit Pal, Sudarson Sekhar Sinha, Jayanta Ganguly, Manas Ghosh
Chemical Physics, 2013
Fluctuation corrections to thermodynamic functions: Finite-size effects
Sudarson Sekhar Sinha, Arnab Ghosh, Deb Shankar Ray
Physical Review E Statistical Nonlinear and Soft Matter Physics, 2013
Fermionic oscillator in a fermionic bath
Arnab Ghosh, Sudarson Sekhar Sinha, Deb Shankar Ray
Physical Review E Statistical Nonlinear and Soft Matter Physics, 2012
Canonical formulation of quantum dissipation and noise in a generalized spin bath
Arnab Ghosh, Sudarson Sekhar Sinha, Deb Shankar Ray
Physical Review E Statistical Nonlinear and Soft Matter Physics, 2012
Construction of a low-cost laser-based multiplexed spectrometer: A potential probe for environmental pollution monitoring
Soumendra Singh, Biswanath Saha, Sudarson Sekhar Sinha, Samir Kumar Pal
International Journal of Environment and Waste Management, 2012
Quantum Smoluchowski equation for a spin bath
Sudarson Sekhar Sinha, Arnab Ghosh, Deb Shankar Ray
Physical Review E Statistical Nonlinear and Soft Matter Physics, 2011
Dissipation in a spin bath: Thermally induced coherent intensity and spectral splitting
Arnab Ghosh, Sudarson Sekhar Sinha, Deb Shankar Ray
Physical Review E Statistical Nonlinear and Soft Matter Physics, 2011
Langevin-bloch equations for a spin bath
Arnab Ghosh, Sudarson Sekhar Sinha, Deb Shankar Ray
Journal of Chemical Physics, 2011
Quantum diffusion in a fermionic bath
Sudarson Sekhar Sinha, Debasish Mondal, Bidhan Chandra Bag, Deb Shankar Ray
Physical Review E Statistical Nonlinear and Soft Matter Physics, 2010
A versatile fiber-optic coupled system for sensitive optical spectroscopy in strong ambient light
Sudarson Sekhar Sinha, Pramod Kumar Verma, Abhinandan Makhal, Samir Kumar Pal
Review of Scientific Instruments, 2009
Photoreactivity of ZnO nanoparticles in visible light: Effect of surface states on electron transfer reaction
Sunandan Baruah, Sudarson Sekhar Sinha, Barnali Ghosh, Samir Kumar Pal, A. K. Raychaudhuri, Joydeep Dutta
Journal of Applied Physics, 2009
Sequence dependent ultrafast electron transfer of nile blue in oligonucleotides
Rajib Kumar Mitra, Sudarson Sekhar Sinha, Swati Maiti, Samir Kumar Pal
Journal of Fluorescence, 2009
Molecular recognition of plant DNA: Does it differ from conventional animal DNA?
Swati Maiti, Protiti Maiti, Sudarson Sekhar Sinha, Rajib Kumar Mitra, Samir Kumar Pal
International Journal of Biological Macromolecules, 2009
Modulation of dynamics and reactivity of water in reverse micelles of mixed surfactants
Rajib Kumar Mitra, Sudarson Sekhar Sinha, Pramod Kumar Verma, Samir Kumar Pal
Journal of Physical Chemistry B, 2008
Ultrafast energy transfer from 3-mercaptopropionic acid-capped CdSe/ZnS QDs to dye-labelled DNA
S. Shankara Narayanan, Sudarson Sekhar Sinha, Pramod Kumar Verma, Samir Kumar Pal
Chemical Physics Letters, 2008
Sensitized emission from a chemotherapeutic drug conjugated to CdSe/ZnS QDs
S. Shankara Narayanan, Sudarson Sekhar Sinha, Samir Kumar Pal
Journal of Physical Chemistry C, 2008
Temperature-dependent simultaneous ligand binding in human serum albumin
Sudarson Sekhar Sinha, Rajib Kumar Mitra, Samir Kumar Pal
Journal of Physical Chemistry B, 2008
Validation and divergence of the activation energy barrier crossing transition at the AOT/lecithin reverse micellar interface
S. Shankara Narayanan, Sudarson Sekhar Sinha, Rupa Sarkar, Samir Kumar Pal
Journal of Physical Chemistry B, 2008
Luminescence depolarization dynamics of quantum dots: Is it hydrodynamic rotation or exciton migration?
S. Shankara Narayanan, Rupa Sarkar, Sudarson Sekhar Sinha, Fernando Dias, Andy Monkman, Samir Kumar Pal
Journal of Physical Chemistry C, 2008
Picosecond to nanosecond reorganization of water in AOT/lecithin mixed reverse micelles of different morphology
S. Shankara Narayanan, Sudarson Sekhar Sinha, Rupa Sarkar, Samir Kumar Pal
Chemical Physics Letters, 2008
Temperature-dependent solvation dynamics of water in sodium bis(2-ethylhexyl)sulfosuccinate/isooctane reverse micelles
Rajib Kumar Mitra, Sudarson Sekhar Sinha, Samir Kumar Pal
Langmuir, 2008
Interactions of nile blue with micelles, reverse micelles and a genomic DNA
Rajib Kumar Mitra, Sudarson Sekhar Sinha, Samir Kumar Pal
Journal of Fluorescence, 2008
Interplay between hydration and electrostatic attraction in ligand binding: Direct observation of hydration barrier at reverse micellar interface
Debapriya Banerjee, Sudarson Sekhar Sinha, Samir Kumar Pal
Journal of Physical Chemistry B, 2007
Hydration in protein folding: Thermal unfolding/refolding of human serum albumin
Rajib Kumar Mitra, Sudarson Sekhar Sinha, Samir Kumar Pal
Langmuir, 2007
Temperature-dependent hydration at micellar surface: Activation energy barrier crossing model revisited
Rajib Kumar Mitra, Sudarson Sekhar Sinha, Samir Kumar Pal
Journal of Physical Chemistry B, 2007

Sudarson Sekhar Sinha

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