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  1. No Access

    Article

    Ataxia Telengectesia Protein Influences Bleomycin-Induced DNA Damage in Human Fibroblast Cells

    Human cancer is caused mainly by exposure to genotoxic chemicals; therefore, cellular defence mechanisms against genotoxic stress are crucial. Genetic factors are essential to maintaining genome stability and ...

    G. Tamizh Selvan, P. Venkatachalam in Cell Biochemistry and Biophysics (2024)

  2. No Access

    Chapter and Conference Paper

    Photonic Integrated Piezo-MEMS (Pip-MEMS) Device for 1D Beam Scanning

    We demonstrate a 1D beam scanning device with a maximum scan angle of 6.6° at 18.91 kHz for a 0.5 mm long PZT-on-SiN waveguide integrated Piezo-MEMS cantilever.

    P. Venkatachalam, Daniel Yumnam, Sushma Gali… in The 25th European Conference on Integrated… (2024)

  3. No Access

    Chapter

    Green Engineering of Silver Nanoparticles Using Leucas aspera Extract: Cytotoxic Efficacy in HeLa Cell Line

    The present study describes a cost-effective and eco-friendly method for green engineering of silver nanoparticles using the leaf extracts of Leucas aspera as reducing as well as cap** agent. Fabrication of bio...

    P. Venkatachalam, T. Bhuvaneswari, N. Geetha in Nanomaterial Biointeractions at the Cellul… (2021)

  4. No Access

    Article

    Erbium doped anatase TiO2 nanoparticles for photovoltaic applications

    Do** of rare earth metal erbium (Er) into the nanocrystalline titanium dioxide (TiO2) was identified to enhance the performance of photocatalytic and photovoltaic applications. Herein, TiO2 was doped with diffe...

    P. Venkatachalam, T. Kalaivani, N. Krishnakumar in Optical and Quantum Electronics (2019)

  5. No Access

    Article

    A Comparison of Microwave Assisted Medicinal Plant Extractions for Detection of Their Phytocompounds Through Qualitative Phytochemical and FTIR Analyses

    The present study describes an efficient microwave assisted extraction (MAE) method for taking out of secondary metabolites from six important medicinal plants namely Centella asiatica (L.) Urban, Solanum triloba...

    N. Geetha, K. Harini, Mary Joseph… in Iranian Journal of Science and Technology,… (2019)

  6. No Access

    Article

    Feeding elicitors and precursors enhance colchicine accumulation in morphogenic cultures of Gloriosa superba L.

    Morphogenic cultures of Gloriosa superba were initiated on Murashige and Skoog’s medium fortified with 2 mg L−1 2,4-dichlorophenoxyacetic acid (2,4-D), 0.5 mg L−1 naphthaleneacetic acid (NAA), 4% sucrose and 0.1%...

    G. Jawahar, D. L. Punita, G. Rajasheker… in Plant Cell, Tissue and Organ Culture (PCTO… (2018)

  7. No Access

    Article

    Investigation on effect of blocking layer in perovskite sensitized pure and aluminium doped ZnO photoanode solar cell

    ZnO is a promising candidate as low cost, porous semiconductor material for photoanodes in a dye sensitized solar cell. In this work, we investigate the performance of pure ZnO nanoparticles (ZNPs), Al2O3 doped Z...

    S. Rajalakshmi, P. Venkatachalam in Journal of Materials Science: Materials in Electronics (2018)

  8. No Access

    Article

    Phycomolecule-coated silver nanoparticles and seaweed extracts induced high-frequency somatic embryogenesis and plant regeneration from Gloriosa superba L.

    An efficient protocol for somatic embryogenesis and plant regeneration from rhizome explants of Gloriosa superba L. was developed using various plant growth regulators (PGRs), Ulva lactuca extracts (ULE), and phy...

    D. Mahendran, P. B. Kavi Kishor, N. Geetha… in Journal of Applied Phycology (2018)

  9. No Access

    Chapter

    Digital Watermarking of Geospatial Data

    The rapid development of technology has made archival and transmission of multimedia information such as music, image, and video very convenient. However, it has also introduced new challenges related to priva...

    H. Tulapurkar, S. Z. Choudhary, R. Ansari… in Geospatial Infrastructure, Applications an… (2018)

  10. No Access

    Article

    Effect of phycochemical coated silver nanocomplexes as novel growth-stimulating compounds for plant regeneration of Alternanthera sessilis L.

    In the present study, phycochemical-loaded silver nanocomplexes (GFAgNPs) were fabricated by using Gracilaria foliifera seaweed extracts as cap** agents on silver ions. The growth-stimulating properties of the ...

    P. Venkatachalam, S. Malar, M. Thiyagarajan… in Journal of Applied Phycology (2017)

  11. No Access

    Article

    Enhanced Antibacterial, Anti-biofilm and Antioxidant (ROS) Activities of Biomolecules Engineered Silver Nanoparticles Against Clinically Isolated Gram Positive and Gram Negative Microbial Pathogens

    Biomolecule-coated silver nanoparticles (AgNPs) were synthesized using ten different medicinal plants and studied their antibacterial and anti-biofilm activity against selected clinically isolated microbial pa...

    G. Prasannaraj, P. Venkatachalam in Journal of Cluster Science (2017)

  12. No Access

    Article

    Biofabrication of Cubic Phase Silver Nanoparticles Loaded with Phytochemicals from Solanum nigrum Leaf Extracts for Potential Antibacterial, Antibiofilm and Antioxidant Activities Against MDR Human Pathogens

    The present report describes an efficient method for bioengineering and characterization of silver nanoparticles (AgNPs) using aqueous leaf extracts of Solanum nigrum and its antibacterial as well as antibiofilm ...

    U. **u, N. Jayalakshmi, A. Sujima Anbu, D. Mahendran… in Journal of Cluster Science (2017)

  13. No Access

    Article

    Tin chloride perovskite-sensitized core/shell photoanode solar cell with spiro-MeOTAD hole transport material for enhanced solar light harvesting

    An attempt has been made to fabricate methyl ammonium tin chloride (CH3NH3SnCl3) perovskite-sensitized TiO2 nanostructure photoanode solar cell with hole transport material (HTM) spiro-MeOTAD and graphite-coated ...

    P. Ananthajothi, P. Venkatachalam in Journal of Solid State Electrochemistry (2016)

  14. No Access

    Article

    Stable Tin Chloride Perovskite Sensitized Silver Doped Titania Nanosticks Photoanode Solar Cells with Different Hole Transport Materials

    Perovskite sensitized solar cells (PSSCs) have recently been catapulted to the cutting edge of thin-film photovoltaic research and development because of their promise for higher power conversion efficiencies ...

    K. Ramavenkateswari, P. Venkatachalam in Journal of Inorganic and Organometallic Po… (2016)

  15. No Access

    Article

    Proficiency of acceptor-donor-acceptor organic dye with spiro-MeOTAD HTM on the photovoltaic performance of dye sensitized solar cell

    This work investigates the proficiency of acceptor-donor-acceptor (A-D-A) organic dye Diisopropyl azodicarboxylate (DIAC) as photosensitizer on the photovoltaic parameters of silver (Ag) doped TiO2 photoanode dye...

    K. Ramavenkateswari, P. Venkatachalam in Electronic Materials Letters (2016)

  16. No Access

    Article

    Art of Waste to Fortune: Conversion of Redgram Stalk into Value Added Chemicals Through Fast Pyrolysis

    Bio-oil production from redgram stalk was investigated in a fluidized bed reactor to study the influence of temperature and particle size. The maximum biooil yield of 52.8 %wt was obtained at 450 °C with a par...

    R. Mythili, P. Subramanian, P. Venkatachalam in National Academy Science Letters (2016)

  17. No Access

    Chapter

    Indirect Somatic Embryogenesis and Plantlet Development from Mature Seed Embryo Explants of Bambusa arundinacea (Retz.) Wild

    Efficient plant production via indirect somatic embryogenesis was established by using mature seed-derived embryo explants of Bambusa arundinacea. The present investigation demonstrates an optimized method for so...

    P. Venkatachalam, K. Kalaiarasi in Plant Tissue Culture: Propagation, Conserv… (2016)

  18. No Access

    Article

    Assessment of mercury heavy metal toxicity-induced physiochemical and molecular changes in Sesbania grandiflora L.

    Mercury (Hg) is one of the major toxic heavy metals because it bioaccumulates and biomagnifies in animal and human bodies via the food chain. To eliminate heavy metal contamination, plants are being used as r...

    S. Malar, S. V. Sahi, P. J. C. Favas… in International Journal of Environmental Sci… (2015)

  19. No Access

    Article

    Co-sensitization Promoted Light Harvesting for Dye-Sensitized Solar Cells

    Co-sensitization of two sensitizers on core/shell TiO2–Nb2O5 with Ta2O5 scattering layer photoanode arranged in different sequences are investigated for application to dye sensitized solar cells (DSSCs). The co-s...

    R. Elangovan, P. Venkatachalam in Journal of Inorganic and Organometallic Po… (2015)

  20. No Access

    Article

    Performance Enhancement in Dye-Sensitized Solar Cells with Composite Mixtures of TiO2 Nanoparticles and TiO2 Nanotubes

    In the present investigation, a new composite nanostructured photoanodes were prepared using TiO2 nanotubes (TNTs) with TiO2 nanoparticles (TNPs). TNPs were synthesized by sol–gel method, and TNTs were prepared ...

    D. Maheswari, P. Venkatachalam in Acta Metallurgica Sinica (English Letters) (2015)

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