Dr Siddharth Shamra

Dr Siddharth Shamra

Senior Researcher | Nanotechnology | Energy generation & storage | R&D | Biosensor | Nanogenerator

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Posts

Graphene and its derivatives for biosensing applications

11 minute read

Published:

Graphene is a one atom thick layer of sp2 hybridized carbon atoms which are arranged in a honeycomb type lattice. It has unique physical, electrical, chemical, mechanical and optical properties including large surface area, exceptional electrical conductivity, very high mechanical strength, and unmatchable thermal conductivity. It is capable of absorbing a large number of bio molecules by π-π stacking bonding or electrostatic bonding, due to these properties, it is considered as one of the best materials for the fabrication of biosensors and for loading drugs. It is the parent of other important allotropes of carbon i.e. 0D fullerenes, 1D carbon nanotubes, and 3D graphite. Graphene and graphene based materials are making huge impact in many applications including graphene field effect transistors, sensors, catalysis, and bioscience /biotechnologies (bio imaging, gene delivery, cancer therapy, tissue engineering and drug delivery). On 5 October, 2010, Andre Geim and K. Novoselov received the Noble Prize in Physics for their remarkable work on graphenewhereingraphene was synthesized by mechanically exfoliating graphite. Since then, a number of methods have been discovered for the synthesis of graphene such as chemical exfoliation, chemical vapor deposition and epitaxial growth on Silicon carbide.Inspite of have a large number of applications, graphene has certain limitations i.e. limited solubility and difficulty in functionalization, due to which it has limited applications in the field of biomedical engineering. In order to overcome these limitations, the derivatives of graphene such as graphene oxide (GO), graphene quantum dots (GQD),etc have been considered to be more suitable.

portfolio

Featured in NDTV article

In an endeavour to minimize the transmission risk of COVID-19 and promote basic hygiene, two students of IIT Roorkee have led a development of preparing more than 150 litres ( 1500 bottles) of the herbal hand sanitizer.

publications

Precursors controlled morphologies of nanocrystalline h-BN and its growth mechanism

Published in Ceramics International, 2021

Nanocrystalline h-BN (hexagonal boron nitride) with various morphologies have been developed via wet chemical synthesis method. Highly reactive environment (NH3) at 1500 °C with different precursor batches (boric acid-melamine)

Recommended citation: Kumar, A., Malik, G., Sharma, S., Chandra, R., & Mulik, R. S. (2021). Precursors controlled morphologies of nanocrystalline h-BN and its growth mechanism. Ceramics International, 47(21): 30985-30992 (IF: 5.532).

Catalyst-free grown carbonaceous MoS2 nanoworm electrodes for symmetrical supercapacitors.

Published in Materials Letters, 2022

The fabricated supercapacitor symmetric device has specific capacitance, energy and power values of 118 Fg⁻¹, 41.21 WhKg⁻¹, and 0.61 kWKg⁻¹ respectively.

Recommended citation: Kumar, A., Tyagi, S., Kumar, R., Sharma, S., Sharma, M., Adalati, R., Kumar, Y., & Chandra, R. (2022). Catalyst-free grown carbonaceous MoS2 nanoworm electrodes for symmetrical supercapacitors. Materials Letters, 323, 132576. (IF: 3.45)

Metal nitride-based nanostructured sheet-electrodes alternately stacked in asymmetric configuration towards flexible supercapacito

Published in Journal of Energy Storage, 2022

The fabricated cell also displays good capacitance retention of 76.8 % for a large number of charging cycles (40,000).

Recommended citation: Adalati, R., Sharma, M., Kumar, A., Sharma, S., & Chandra, R. (2022). Metal nitride-based nanostructured sheet-electrodes alternately stacked in asymmetric configuration towards flexible supercapacitor. Journal of Energy Storage, 55, 105617 (IF: 9.4).

Single- step fabrication of di-titanium nitride thin-film flexible and biocompatible supercapacitor.

Published in Ceramics International, 2022

The device evinces a broader voltage window of 1.0 V with good capacitance retention of 86% even after 5000 CV cycles at a scan rate of 50 mVs⁻¹. The biocompatibility of the electrode was checked in-vitro and it reveals excellent cell viability of around 85%.

Recommended citation: Sharma, S., Adalati, R., Sharma, M., Jindal, S., Kumar, A., Malik, G., & Chandra, R. (2022). Single- step fabrication of di-titanium nitride thin-film flexible and biocompatible supercapacitor. Ceramics International, 48(23), 34678-34687. (IF: 5.532)

Metal nitrides as efficient electrode material for supercapacitors

Published in Journal of Energy Storage, 2022

In this review, we highlighted the recent trends and future aspects of metal nitride-based electrodes in energy storage devices

Recommended citation: Adalati, R., Sharma, M., Sharma, S., Kumar, A., Malik, G., Boukherroub, R., & Chandra, R. (2022). Metal nitrides as efficient electrode material for supercapacitors: A review. Journal of Energy Storage, 56, 105912. (IF: 9.4).

Mn incorporated CeO2 lattice endorsement of electrochemical performance in symmetric supercapacitor.

Published in Energy Technol, 2023

The Mn-doped CeO2 SS (symmetric supercapacitor) device with high energy and power densities of 31 Wh kg-1 and 1673 Wkg-1 respectively, also exhibits excellent cyclic retention of 87.6% even after 10,000 cycles.

Recommended citation: Meenakshi Sharma; Ravikant Adalati; Reenu Rani; Siddharth Sharma; Ashwani Kumar; Ramesh Chandra. Mn incorporated CeO2 lattice endorsement of electrochemical performance in symmetric supercapacitor. Energy Technol. 2023, 2300321 (IF: 4.149).

Enhanced electrochemical corrosion resistance of SS-304 alloy with nano-pyramids c-TiN layer for saline media application.

Published in Journal of Alloys and Metallurgical Systems 3, 2023

The formation of corrosion products was discussed by using surface morphology analysis, while the electrochemical ion kinetic study was also presented to understand the anti-corrosion mechanism of c-TiN coating.

Recommended citation: Malik G., Kumar A.; Adalati R., Sharma S., Chandra R. Enhanced electrochemical corrosion resistance of SS-304 alloy with nano-pyramids c-TiN layer for saline media application. Journal of Alloys and Metallurgical Systems 3 (2023) 100028

Physiological Fluid-Assisted Nanostructured NbN@Cu Foam Supercapacitor Towards Flexible and Biocompatible Energy Storage Applications.

Published in Journal of Energy Storage, 2023

The supercapacitor device demonstrated excellent electrochemical stability and efficient electrochemical performance (specific capacitance of 10.772 Fg-1 and 86.8% retention after 5,000 cycles). The device can operate in various physiological fluids (phosphate buffer saline and cell culture medium).

Recommended citation: Sharma, S., Adalati, R., Unnikrishnan BS., Gopinath P., Dutta S., Bansal A., & Chandra, R. Physiological Fluid-Assisted Nanostructured NbN@Cu Foam Supercapacitor Towards Flexible and Biocompatible Energy Storage Applications. Journal of Energy Storage 73PC (2023) 109089 (IF: 9.4)

Physiological fluid based flexible NbN TiN supercapacitor for biocompatible energy storage applications.

Published in Journal of Alloys and Compounds, 2023

The device delivered a voltage window of 1.2 V, with superb electrochemical performance (areal energy and power density of 1.86 µWhcm-2 and 239.14 mWcm-2 respectively).

Recommended citation: Sharma, S., Adalati, R., Sharma, M., Unnikrishnan BS., Gopinath P., & Chandra, R. (2023) Physiological fluid based flexible NbN TiN supercapacitor for biocompatible energy storage applications. Journal of Alloys and Compounds , 960, 170749, ISSN 0925-8388 (IF: 6.371)

Palladium enhanced electrochemical supercapacitive performance of Chromium oxide thin films synthesized by sputtering process.

Published in JALCOM (Communicated), 2023

Palladium enhanced electrochemical supercapacitive performance of Chromium oxide thin films synthesized by sputtering process.

Recommended citation: Rani R., Sharma M.; Sharma S., Chandra R. Palladium enhanced electrochemical supercapacitive performance of Chromium oxide thin films synthesized by sputtering process. JALCOM (Communicated) (IF: 6.371).

talks

teaching

Teaching experience

Undergraduate course, Uttarakhand Technical University, Electrical Engineering Department, 2012

  • Taught computer science and lectured in the Electrical Engineering Department
    • C, C++, Java, PHP, Electronics & Electrical Engineering
  • Guided students in the best possible way to bring out better result