Latest Publications
Interfacial Engineering of CoFe2O4/MnWO4 Heterojunctions for Enhanced Sonophotocatalytic Degradation of Sulfamethazine
Jeyaprakash Jenson Samraj, Selvam Jeyapandi, Aravaindan Gunaseelan, Radhakrishnan Rageshnath, Raghul Ramachandran, Gi-Hsuan Lin, Jian-Rong Chen, Kirankumar Santhakumar, Masaya Matsuoka, Takashi Kamegawa, Shyue-Chu Ke, Sivaramapanicker Sreejith, Bernaurdshaw Neppolian
Journal of Materials Chemistry A, 2026, Just ACCEPTED.
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Squaraine Dyes for Biophotonics: Sensing, Imaging and Theranostics
Sivaramapanicker Sreejith*, Chodoparambil Sanjay, Balaraman Vedhanarayanan, Ayyappanpillai Ajayaghosh
Chemical Society Reviews, 2026, 55, 4867-4899. Link
In this review we discuss recent advances in the design and application of squaraine dyes as molecular probes across diverse biophotonic platforms. We highlight emerging strategies that leverage their tunable optical features and versatility.
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Distinguishing the Bimodal Interaction of a Squaraine Dye with a Protein by a Functional Group Photo deprotection Strategy
Palapuravan Anees, Giridharan Saranya, Sivaramapanicker Sreejith, Ayyappanpillai Ajayaghosh
Chemistry an Asian Journal, 2025, 20, e202401517. Link
The photo responsive squaraine dye (PSq) interacts with BSA protein in two distinct ways: noncovalently, yielding a robust NIR emission, and covalently, resulting in a weak green emission. Upon photoirradiation, the green emission of the covalently bound fluorophore is activated via photocleavage of the attached group whereas the NIR emission of the noncovalently bound dye is deactivation.
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