Synthesis and characterization of Rosebengal end-capped poly(o-chloroaniline)/Ag nanocomposite-based NIR fluorescent probe: a structure–property relationship study

IF 1.9 4区 材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY Bulletin of Materials Science Pub Date : 2024-11-01 DOI:10.1007/s12034-024-03359-1
Anbarasan Ramasamy, M Kenet Nancy Mary, A Jancirani
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Abstract

Nowadays, an economically cheaper, NIR fluorescent probe is needed in order to identify the cancerous cells without skin cells damage. For this purpose, conventional conducting polymers are used. Under N2 environment, the chemical polymerization of o-chloroaniline (OCA) was initiated by peroxydisulphate (PDS) with the help of rosebengal (RB) dye, both in the presence and absence of a 3% weight loading of Ag+ ion. The weight of the polymer was used to calculate the rate of polymerization (Rp) and yield percentage. Additionally, FTIR, UV–visible, fluorescence emission, thermogravimetric analysis, scanning electron microscopy and differential scanning calorimetry were used to analyse the poly(o-chloroaniline) (POCA) structure–property relationship. The FTIR spectrum confirmed the presence of benzenoid and quinonoid structures in POCA chains. The percentage yield and Rp both marginally increased in the presence of Ag+ ions. The Tg of RB end-capped POCA/Ag nanocomposite system was determined as 103°C. The energy of activation (Ea) value of 66.17 kJ mol−1 was found for the structural degradation of RB in RB end-capped POCA. In comparison to the straightforward RB end-capped POCA system, the POCA/Ago nanocomposite system has higher thermodynamic parameter values. The experimental findings are thoroughly examined and contrasted with the values given in the literature.

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玫瑰红末端封端的聚(邻氯苯胺)/银纳米复合材料近红外荧光探针的合成与表征:结构-性能关系研究
如今,为了在不损伤皮肤细胞的情况下识别癌细胞,需要一种经济实惠的近红外荧光探针。为此,我们使用了传统的导电聚合物。在 N2 环境下,过氧化二硫酸盐(PDS)在玫瑰红(RB)染料的帮助下引发了邻氯苯胺(OCA)的化学聚合反应。聚合物的重量用于计算聚合速率(Rp)和产率百分比。此外,还利用傅立叶变换红外光谱、紫外可见光、荧光发射、热重分析、扫描电子显微镜和差示扫描量热法分析了聚(邻氯苯胺)(POCA)的结构-性能关系。傅立叶变换红外光谱证实了 POCA 链中存在苯环和醌环结构。Ag+ 离子存在时,产率百分比和 Rp 都略有增加。经测定,RB 端封端 POCA/Ag 纳米复合材料体系的 Tg 为 103°C。在 RB 末端封端的 POCA 中发现 RB 结构降解的活化能(Ea)值为 66.17 kJ mol-1。与直接的 RB 端封端 POCA 系统相比,POCA/Ago 纳米复合材料系统的热力学参数值更高。对实验结果进行了深入研究,并与文献中给出的数值进行了对比。
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来源期刊
Bulletin of Materials Science
Bulletin of Materials Science 工程技术-材料科学:综合
CiteScore
3.40
自引率
5.60%
发文量
209
审稿时长
11.5 months
期刊介绍: The Bulletin of Materials Science is a bi-monthly journal being published by the Indian Academy of Sciences in collaboration with the Materials Research Society of India and the Indian National Science Academy. The journal publishes original research articles, review articles and rapid communications in all areas of materials science. The journal also publishes from time to time important Conference Symposia/ Proceedings which are of interest to materials scientists. It has an International Advisory Editorial Board and an Editorial Committee. The Bulletin accords high importance to the quality of articles published and to keep at a minimum the processing time of papers submitted for publication.
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