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All Journal Emerging Science Journal Jurnal Pijar MIPA
Ghosh, Raja
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Biochemistry, Genetics & Molecular Biology Chemistry Environmental Science Mathematics Physics

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Synthesis and Characterization of Host Guest Inclusion Complexes of Cyclodextrin Molecules with Theophylline by Diverse Methodologies Dutta, Ashutosh; Roy, Niloy; Das, Koyeli; Roy, Debadrita; Ghosh, Raja; Roy, Mahendra Nath
Emerging Science Journal Vol 4, No 1 (2020): February
Publisher : Ital Publication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28991/esj-2020-01210

Abstract

Steady host–guest inclusion complexes have been produced with medicinally important guest molecule theophylline within aqueous α-Cyclodextrin and HP-β-Cyclodextrin. α-and HP-β-Cyclodextrins have been established with favorable structural features for inclusion with Theophylline which include diversified applications in modern science such as controlled delivery in the field of pharmaceuticals, food processing, pesticides, foodstuffs etc. Theophylline is one of the most widely accepted drugs for the treatment of asthma and chronic obstructive pulmonary disease (COPD) worldwide, even if it has been used clinically for many years. With both α and HP-β-Cyclodextrins it is found that 1:1 hosts-guest inclusion complexes are formed with the guest molecule theophylline. The construction and quality of the inclusion complexes have been characterized by using conductivity measurement, surface tension study, and Job’s method. The inclusion phenomenon has been confirmed by FTIR spectroscopy, proton NMR study. Association constants and thermodynamic parameters have been evaluated for the created inclusion complexes by ultraviolet spectroscopy.
The First Record of Anax parthenope (Selys, 1839) (Odonata: Aeshnidae) from the Outskirts of Jamshedpur, Jharkhand, India Ghosh, Raja; Mallick, Md Abu Imran; Ansari, Shaba Alam
Jurnal Pijar Mipa Vol. 21 No. 2 (2026): in Progress
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v21i2.11570

Abstract

Odonates are widely recognized as effective bioindicators of freshwater ecosystem health, yet their diversity and distribution remain inadequately documented in several parts of eastern India. Anax parthenope (Selys, 1839) (Odonata: Aeshnidae), a broadly distributed species across Asia, Europe, and Africa, has limited confirmed records from this region. The present study aims to document the first confirmed occurrence of A. parthenope from the outskirts of Jamshedpur, Jharkhand, India. An adult male was opportunistically observed and photographed near a semi-permanent freshwater body at Kudada village (22.7076° N, 86.2033° E) in October 2020. Species identification was achieved through comparative morphological analysis using standard taxonomic keys, focusing on diagnostic characters of the thorax, abdomen, and anal appendages. This record represents a new locality for the species in Jharkhand and extends its known distribution within eastern India. The finding underscores the ecological value of peri-urban wetlands as habitats for odonates and highlights the need for systematic, long-term surveys to improve baseline data on odonate diversity and support freshwater biodiversity conservation in the region.
Co-Authors Ansari, Shaba Alam Das, Koyeli Dutta, Ashutosh Mallick, Md Abu Imran Roy, Debadrita Roy, Mahendra Nath Roy, Niloy