Search Results - "Kumar, Ashok S.K."

A colorimetric and ratiometric fluorescent sensor for biogenic primary amines based on dicyanovinyl substituted phenanthridine conjugated probe by Saravanakumar, Manickam, Umamahesh, Balijapalli, Selvakumar, Ramasamy, Dhanapal, Jothi, Ashok kumar, S.K., Sathiyanarayanan, Kulathu Iyer

“…Two molecules with an aldehyde donor substituted 4'-(7,8,13,14-tetrahydrodibenzo[a,i]phenanthridin-5-yl)-[1,1′-biphenyl]-4-carbaldehyde (5) and a dicyanovinyl…”
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Highly selective turn-on fluorogenic chemosensor for Zn2+ based on chelation enhanced fluorescence by Venkatesan, Vetriarasu, Kumar R, Selva, Kumar, S.K. Ashok, Sahoo, Suban K.

“…A new fluorescent zinc sensor was constructed based on cyclic and noncyclic Schiff's bases obtained by the condensation of 4‑(diethylamino) salicylaldehyde and…”
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Critical Role of Dipeptidyl Peptidase IV: A Therapeutic Target for Diabetes and Cancer by De, Sourav, Banerjee, Subhasis, Kumar, S K Ashok, Paira, Priyankar

“…Diabetes mellitus is an emerging predator and affecting around 422 million adults worldwide. Higher levels of circulating insulin and increased pressure on the…”
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Highly selective CHEF-type chemosensor for lutetium (III) recognition in semi-aqueous media by Kumar, R. Selva, Ashok Kumar, S.K., Vijayakrishna, Kari, Sivaramakrishna, Akell, Brahmnanda Rao, C.V.S., Sivaraman, N., Sahoo, Suban K.

“…A simple phosphoryl quinolone (L) based sensor has been synthesized for the selective recognition of Lu3+ by spectrofluorimetric method. In methanol-water…”
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Development of highly selective chemosensor for chomium(III) estimation in aqueous environment by Raju, V., Selva Kumar, R., Ashok Kumar, S.K., Tharakeswar, Y., Sahoo, Suban K.

“…A new antipyrine Schiff's base, 2-((2,5-dimethyl-3-oxo-1-phenyl-2,3-dihydro-1H-pyrazol-4-yl)imino)-1H-indene-1,3(2H)-dione (L) has been synthesized by simple…”
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A critical review of benzimidazole: Sky-high objectives towards the lead molecule to predict the future in medicinal chemistry by Banerjee, Sabyasachi, Mukherjee, Sougata, Nath, Priyobrata, Mukherjee, Agnish, Mukherjee, Souvik, Ashok Kumar, S.K., De, Sourav, Banerjee, Subhasis

“…[Display omitted] Out of several heterocyclic templates, the use of a Benzimidazole (BZ) scaffold is immensely observed. This fused heterocycle comprises two…”
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Bioimaging application of a novel anion selective chemosensor derived from vitamin B6 cofactor by Sharma, Darshna, Moirangthem, Anuradha, Roy, Sutapa Mondal, S K Kumar, Ashok, Nandre, Jitendra P, Patil, Umesh D, Basu, Anupam, Sahoo, Suban K

“…The detection of intracellular fluoride was achieved by a novel Schiff base chemosensor derived from vitamin B6 cofactor (L) using fluorescence imaging…”
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Trace level detection of putrescine and cadaverine in food samples using a novel rhodanine-imidazole dyad and evaluation of its biological properties by Joseph, Suman, Ashok Kumar, S.K.

“…Biogenic amines are important indicators of food spoilage and quality. Food safety is significantly influenced by biogenic amines such as Putrescine and…”
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Aggregation-induced emission active salicylaldehyde hydrazone with multipurpose sensing applications by Patel, Dhvani A., Ashok Kumar, S.K., Sahoo, Suban K.

“…[Display omitted] •Aggregation-induced emission (AIE) behaviour of a Schiff base salicylaldehyde hydrazone (SH) was investigated.•The non-fluorescent SH in…”
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Recent advances in the photophysical detection and delivery of singlet oxygen by Joseph, Suman, Ashok Kumar, S.K.

“…[Display omitted] •Singlet oxygen plays an essential role in human physiology and photodynamic therapy.•Singlet oxygen molecular carriers are preferred in…”
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Antipyrine derived Schiff's base as a colorimetric probe for the rapid and selective detection of Cu2+ions by Shaji, Leyana K., Ashok Kumar, S.K.

“…[Display omitted] •A colorimetric Schiff base probe L was synthesized for Cu2+ sensing in semi-aqueous medium.•The limit of detection was found to be…”
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A new Al3+ selective fluorescent turn-on sensor based on hydrazide-naphthalic anhydride conjugate and its application in live cells imaging by Anand, Thangaraj, Ashok Kumar, S.K., Sahoo, Suban K.

“…In this communication, we have developed an optical chemosensor 2-amino N-(6-bromo-1,3-dioxo-1H-benzo[de]isoquinolin-2(3H)-yl)benzamide (NAPH) for selective…”
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Fluorescent sensing (Cu2+ and pH) and visualization of latent fingerprints using an AIE-active naphthaldehyde-pyridoxal conjugated Schiff base by Bhardwaj, Vinita, Ashok Kumar, S.K., Sahoo, Suban K.

“…[Display omitted] •An AIE active naphthaldehyde-pyridoxal (NPPY) conjugated Schiff base was introduced.•AIEgen NPPY was applied for fluorescent turn-off…”
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Selective chromogenic and fluorogenic signalling of Hg2+ ions using a benzothiazole-quinolinyl acrylate conjugate and its applications in the environmental water samples and living cells by Shaji, Leyana K., Selva Kumar, R., Jose, Jiya, Bhaskar, R., Vetriarasu, V., Bhat, Sarita G., Ashok Kumar, S.K.

“…[Display omitted] •A highly selective and sensitive chemosensor (L) for detection of Hg2+ ion in semi-aqueous medium.•The chemosensor can detect Hg2+ ions as…”
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Co-crystal of caffeic acid and bipyridyl ethylene as a selective fluorescence sensor for Al3+ and its coordination geometry – Combined experimental and theoretical investigations by Dua, Aastha, Ramasamy, Selva Kumar, Ashok Kumar, S.K., Roy, Sandipan, Sharma, Harish K.

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Highly selective fluorescent chemosensor for the relay detection of Al3+ and picric acid by Selva Kumar, R., Kumar, S.K. Ashok

“…A visible “off-on-off” fluorescent chemosensor N′,N′-bis(-(2-hydroxynaphthalen-1-yl)methylene)-1,10-phenanthroline-2,9-dicarbohydrazide (L, OFF) was developed…”
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Diaminomaleonitrile Schiff base with phenothiazine aldehyde as multimode chemosensor for copper ions and its application by Dua, Aastha, Selvam, Pravinkumar, Majeed, S. Abdul, Kumar, S.K. Ashok, Sharma, Harish K., Ramasamy, Selva Kumar

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Phenanthroline-benzothiazole conjugate an “On-Off” fluorescent sensor for Hg(II) and its bioimaging applications by Mujthaba Aatif, A., Ashok Kumar, S.K.

“…A high-performance ON-OFF probe (L) for the selective recognition of Hg2+viaCHEQ was developed and it can detect Hg2+as low as 1.93 nM. Besides, the probe…”
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Historical overview and recent progress on supramolecular sensors for thorium recognition by Kumar R, Selva, Bhaskar, R., Sharma, Harish K., Ashok Kumar, S.K., Sahoo, Suban K.

“…A significant interest worldwide has been shown in developing a thorium (Th) fuel-based nuclear power program to supplement uranium reserves for future power…”
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Methods special issue: Recent advancement on fluorescent chemosensing and bioimaging by Sahoo, Suban K., Ashok Kumar, S.K.

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