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Balasaheb D. Vanjare,Prasad G. Mahajan,홍성갑,이기환 대한화학회 2018 Bulletin of the Korean Chemical Society Vol.39 No.5
The Schiff base as chemosensor (B) namely 2?((anthracen?1?ylimino) methyl) phenol was designed and synthesized. The spectral properties of chemosensor B were confirmed by using IR, 1H NMR, 13C NMR, and LC?MS techniques. The chemosensor B shows a significant fluorescence quenching with incremental addition of Fe3+. The present chemosensor B shows unaffected fluorescence response induced by Fe3+ even in the presence of other competing ions in mixed solvent system. The binding mode and stoichiometry (2:1) between chemosensor B and Fe3+ were analyzed by recording 1H NMR and Job's plot respectively. The ground state complexation of chemosensor B and Fe3+was confirmed by absorption titration and fluorescence lifetime measurement in the absence and presence of various concentration of Fe3+ ion to chemosensor B. The lower detection limit for Fe3+ found to be 0.59??M with correlation coefficient R2?=?0.9815. The present chemosensor B successfully applied for quantitative determination of the Fe3+ ion from ordinary water samples.
Balasaheb Wakchaure Vrushali,Uttam Chaskar 대한전기학회 2022 Journal of Electrical Engineering & Technology Vol.17 No.1
In recent times, the intelligent biological control system in biomedical engineering has been utilized in various applications such as prosthesis control, drug delivery control, blood glucose control, and heart rate regulation. Moreover, the pancreas, gene regulatory network (GRN), and protein are the main sources in the human body system. However, the parameter regulations of these systems are crucial, because the conventional control methods lack the fnest performance, provoking a lot of errors. With an advanced control method, the parameters of the biological system can regulate as per the level to avoid serious conditions. Therefore, in this research, a novel self-constructing intelligent emperor penguin (SIEP) algorithm based fractional-order adaptive proportional integral derivative (FAPID) controller is proposed to regulate the parameters of the system. Here, the FAPID controller gain parameters are efectively tuned by the SIEP algorithm. This proposed SIEP-FAPID controller regulates the constraints of linear time-invariant (LTI) based biological systems such as the pancreas, GRN, and protein formation as per the required level. Moreover, the stability of the controller is studied using the discrete Lyapunov stability analysis function. The quality of the control function has been improved using this proposed approach thus the fnest gain and reduced error percentage was obtained. Furthermore, the proposed simulation outcomes are compared with various conventional control approaches which are validated for proving the enhanced controller function under external disturbances. The comparison shows that the proposed SIEP algorithm in the FAPID controller has attained 0.1% less error while comparing with the existing controllers.
Balasaheb D. Vanjare,Prasad G. Mahajan,Nilam C. Dige,PHULL ABDUL REHMAN,김송자,이기환 대한화학회 2019 Bulletin of the Korean Chemical Society Vol.40 No.6
Rhodamine derivatives have been persistently used as fluorescent/solvatochromic dyes in various areas. For example, they are used as a labeling agent in biotechnology and a chemosensor. Also, rhodamine derivatives are used for cell imaging experiment. Herein, we report on the synthesis of fluorescent derivatives based on rhodamine B (RHB1, RHB2, and RHB3). We confirmed the structures and purities of the synthesized probes i.e., RHB1, RHB2, and RHB3 by using analytical technique's viz. 1H NMR, 13C NMR, Mass and FT-IR followed by exploring spectroscopic properties by using fluorescence/UV absorption spectroscopy. The effect of solvents on the fluorescence and absorption properties of the synthesized compounds has been comprehensively studied using a series of solvent. In addition, synthesized RHB1, RHB2, and RHB3 were found to be non-toxic against the cancer cell (MDA-MB-231). It is clear from the result of the conventional fluorescence microscopy that probe RHB2 exhibits significant optical properties as compared with those of RHB1 and RHB3.
Molecular Recognition of Neutral Substrates by New Tetraaminocalix[4]arene Derivative
Satish Balasaheb Nimse,Keum-Soo Song,Chan-Yong Jung,Woon-Yong Eoum,김태선 대한화학회 2009 Bulletin of the Korean Chemical Society Vol.30 No.6
The recognition of neutral aromatic substrates by different neutral calix[4]arene receptors 1, 2, and 3 was studied by NMR spectroscopy. The stoichiometry is 1:1 in all cases as was confirmed by jobs plot. Owing to the deep cavity, 1 affords stronger binding abilities for substrate 4 and 5, while all receptors remained inert for substrates 6 and 7. The binding constants determined by 1H NMR titration show that the recognition of substrate 4 by 1 gives strongest complexation (Ka of 9.8 × 102 M-1).
Synthesis and Modification of Novel Iminecalix[4]arene Derivatives
Satish Balasaheb Nimse,Junbae Kim,Keum-Soo Song,Junghoon Kim,이정태,Van-Thao Ta,Van-Thuan Nguyen,김태선 대한화학회 2011 Bulletin of the Korean Chemical Society Vol.32 No.4
The synthesis of novel iminecalix[4]arenes and further modification thereafter is described using a synthetic strategy. The reaction of the benzaldehyde derivatives with tetraamine functions on the calix[4]arene easily afforded the pure compounds in 92.4-95.7% yields, regardless of the effect of the substituents on the benzaldehyde derivatives. These compounds were stable under the conditions to obtain their analogue dialkylated in the narrow rim, with 83.2-89.9% yields. Characterization of the newly synthesized iminecalix[4]arene derivatives by spectroscopic methods revealed that all compounds are in the cone conformations.
Biological applications of functionalized calixarenes
Nimse, Satish Balasaheb,Kim, Taisun The Royal Society of Chemistry 2013 Chemical Society reviews Vol.42 No.1
<P>The functionalized calixarene derivatives exhibit remarkable properties towards organic and bioorganic molecules. However, the ability of calixarene derivatives to form stable complexes with biomolecules allows them to be applied for the development of biosensors and in the field of biology, biotechnology, and drug discovery. The applications of the functionalized calixarenes are summarized in this review, and an outlook for the future developments is discussed. A brief survey (of the last 10 years) on their biological application in various fields is also considered (199 references).</P> <P>Graphic Abstract</P><P>The applications of functionalized calixarenes are summarized in this Review, and an outlook for the future developments is discussed. A brief survey (of the last 10 years) on their biological application in various fields is also considered. <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=c2cs35233h'> </P>
Molecular Recognition of Neutral Substrates by New Tetraaminocalix[4]arene Derivative
Nimse, Satish Balasaheb,Song, Keum-Soo,Jung, Chan-Yong,Eoum, Woon-Yong,Kim, Tai-Sun Korean Chemical Society 2009 Bulletin of the Korean Chemical Society Vol.30 No.6
The recognition of neutral aromatic substrates by different neutral calix[4]arene receptors 1, 2, and 3 was studied by NMR spectroscopy. The stoichiometry is 1:1 in all cases as was confirmed by jobs plot. Owing to the deep cavity, 1 affords stronger binding abilities for substrate 4 and 5, while all receptors remained inert for substrates 6 and 7. The binding constants determined by $^1H$ NMR titration show that the recognition of substrate 4 by 1 gives strongest complexation ($K_a\;of\;9.8\;{\times}\;102\;M^{-1}$).
Synthesis and Modification of Novel Iminecalix[4]arene Derivatives
Nimse, Satish Balasaheb,Kim, Jun-Bae,Lee, Jeong-Tae,Song, Keum-Soo,Kim, Jung-Hoon,Ta, Van-Thao,Nguyen, Van-Thuan,Kim, Tai-Sun Korean Chemical Society 2011 Bulletin of the Korean Chemical Society Vol.32 No.4
The synthesis of novel iminecalix[4]arenes and further modification thereafter is described using a synthetic strategy. The reaction of the benzaldehyde derivatives with tetraamine functions on the calix[4]arene easily afforded the pure compounds in 92.4-95.7% yields, regardless of the effect of the substituents on the benzaldehyde derivatives. These compounds were stable under the conditions to obtain their analogue dialkylated in the narrow rim, with 83.2-89.9% yields. Characterization of the newly synthesized iminecalix[4]arene derivatives by spectroscopic methods revealed that all compounds are in the cone conformations.
Biomarker detection technologies and future directions
Nimse, Satish Balasaheb,Sonawane, Mukesh Digambar,Song, Keum-Soo,Kim, Taisun The Royal Society of Chemistry 2016 The Analyst Vol.141 No.3
<P>Biomarkers play a vital role in disease detection and treatment follow-up. It is important to note that diseases in the early stage are typically treated with the greatest probability of success. However, due to various technical difficulties in current technologies for the detection of biomarkers, the potential of biomarkers is not explored completely. Therefore, the developments of technologies, which can enable the accurate detection of prostate cancer at an early stage with simple, experimental protocols are highly inevitable. This critical review evaluates the current methods and technologies used in the detection of biomarkers. The aim of this article is to provide a comprehensive review covering the advantages and disadvantages of the biomarker detection methods. Future directions for the development of technologies to achieve highly selective and sensitive detection of biomarkers for point-of-care applications are also commented on.</P>