Institution
Indian Institute of Technology Ropar
Education•Ropar, India•
About: Indian Institute of Technology Ropar is a education organization based out in Ropar, India. It is known for research contribution in the topics: Catalysis & Computer science. The organization has 1014 authors who have published 2878 publications receiving 35715 citations.
Topics: Catalysis, Computer science, Heat transfer, Ionic liquid, Chemistry
Papers
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TL;DR: The promising results pave ways for realization of a field deployable device based upon a developed probe for selenite quantification in water, designed from citric acid by means of pyrolysis and interfaced with a newly synthesized nitrogen-rich ligand.
Abstract: This work reports a label-free, ultrasensitive, and selective optical chemosensory system for trace level detection of selenite (SeO32-), the most toxic form of selenium, in water. The probe, i.e., carbon quantum dots (CQDs), is designed from citric acid by means of pyrolysis and is interfaced with a newly synthesized nitrogen-rich ligand to create a selective sensor platform (functionalized CQDs, fCQDs) for selenite in a water matrix. Spectral (NMR, UV-vis, photoluminescence, Raman, and Fourier transform infrared analyses) and structural (high-resolution transmission electron microscopy) characteristics of the designed new probe were investigated. The developed sensor exhibits high sensitivity (limit of detection = 0.1 ppb), a wide detection range (0.1-1000 ppb range, relative standard deviation: 3.2%), and high selectivity even in the presence of commonly interfering ions reported to date, including Cl-, NO3-, NO2-, Br-, F-, As(V), As(III), Cu2+, Pb2+, Cd2+, Zn2+, Sr2+, Rb2+, Na+, Ca2+, Cs+, K+, Mg2+, Li+, NH4+, Co2+, etc. The observed selectivity is due to designed ligand characteristics in terms of strong Se-N chemistry. Ultrafast spectroscopic analysis of the fCQDs in the absence and presence of selenite was studied to understand the sensing mechanism. The sensor was successfully exemplified for real water samples and exhibits comparative performance to conventional ion channel chromatography as well as flame atomic absorption spectroscopy for selenite analysis. The promising results pave ways for realization of a field deployable device based upon a developed probe for selenite quantification in water.
40 citations
TL;DR: In this article, a benzimidazole-based receptor that selectively recognized Cr3+ without interference from other metal ions was synthesized, and the resultant Cr-complex recognized HSO4− and F− via two approaches.
40 citations
TL;DR: Novel amino-functionalized graphene crosslinked collagen based nerve conduit fabricated using cryogelation has potential for suppressing the neuro-inflammation and promoting the neuronal cellular migration and proliferation, which is a major barrier during the spinal cord regeneration.
40 citations
TL;DR: In this paper, ionic liquids were applied on the surface of nanocrystalline ZSM-5 by post synthesis method for the simultaneous determination of all four DNA bases such as adenine, cytosine, guanine and thymine.
40 citations
TL;DR: In this article, a non-enzymatic electrochemical sensor was constructed for the detection of lindane in the aqueous-methanol medium using cyclic voltammetry, differential pulse voltameter, and amperometry.
40 citations
Authors
Showing all 1056 results
| Name | H-index | Papers | Citations |
|---|---|---|---|
| Rajesh Kumar | 149 | 4439 | 140830 |
| Rajeev Ahuja | 85 | 1072 | 32325 |
| Surya Prakash Singh | 55 | 736 | 12989 |
| Christopher C. Berndt | 54 | 257 | 9941 |
| S. Sitharama Iyengar | 53 | 776 | 13751 |
| Sarit K. Das | 52 | 273 | 17410 |
| R.P. Chhabra | 50 | 288 | 8299 |
| Narinder Singh | 45 | 452 | 9028 |
| Rajendra Srivastava | 44 | 192 | 7153 |
| Shirish H. Sonawane | 44 | 224 | 5544 |
| Dharmendra Tripathi | 37 | 188 | 4298 |
| Partha Pratim Roy | 36 | 404 | 5505 |
| Harpreet Singh | 35 | 238 | 4090 |
| Namita Singh | 34 | 219 | 4217 |
| Javed N. Agrewala | 32 | 112 | 3073 |