共 38 条
Phytogenic synthesis of Co3O4 nanorods and its application in biomolecule sensing and antifungal activity
被引:7
作者:

Muthukumar, Thennila
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Thiagarajar Coll, PG & Res Dept Chem, Madurai 625009, Tamil Nadu, India
Sethu Inst Technol, Dept Phys, Virudunagar 626115, Tamil Nadu, India Thiagarajar Coll, PG & Res Dept Chem, Madurai 625009, Tamil Nadu, India

Arumugam, Elangovan
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Thiagarajar Coll, PG & Res Dept Chem, Madurai 625009, Tamil Nadu, India Thiagarajar Coll, PG & Res Dept Chem, Madurai 625009, Tamil Nadu, India

Chandrasekaran, Sharmila
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Thiagarajar Coll, PG & Res Dept Chem, Madurai 625009, Tamil Nadu, India Thiagarajar Coll, PG & Res Dept Chem, Madurai 625009, Tamil Nadu, India

Karuppiah, Chelladurai
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机构:
Ming Chi Univ Technol, Battery Res Ctr Green Energy, New Taipei 24301, Taiwan Thiagarajar Coll, PG & Res Dept Chem, Madurai 625009, Tamil Nadu, India

Kodirajan, Selvakumar
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Thiagarajar Coll, PG & Res Dept Chem, Madurai 625009, Tamil Nadu, India Thiagarajar Coll, PG & Res Dept Chem, Madurai 625009, Tamil Nadu, India
机构:
[1] Thiagarajar Coll, PG & Res Dept Chem, Madurai 625009, Tamil Nadu, India
[2] Sethu Inst Technol, Dept Phys, Virudunagar 626115, Tamil Nadu, India
[3] Ming Chi Univ Technol, Battery Res Ctr Green Energy, New Taipei 24301, Taiwan
关键词:
Cobalt oxide;
Nanorods;
Ocimum tenuiflorum;
Glucose/dopamine sensing;
Antifungal activity;
D O I:
10.1016/j.inoche.2020.108305
中图分类号:
O61 [无机化学];
学科分类号:
070301 ;
081704 ;
摘要:
An efficient, ease, and environmentally friendly method has been developed using Ocimum tenuiflorum leaf extract as reducing agent to prepare Co3O4 nanorods. The synthesized nanorods have been characterized by using various physicochemical techniques such as XRD, FTIR, TG-DTA, TEM, XPS and evaluated the biological sensing activity of Co3O4/GCE as electrocatalyst against glucose and dopamine etc. Electrochemical measurements reveal that Co3O4/GCE exhibited excellent electrocatalytic activity towards glucose with two different linear counter part, i.e., 200 nM - 110 mu M (R-2 = 0.9996) & 160 mu M - 5.91 mM (R-2 = 0.9873). The developed glucose sensor reveals the lowest limit of detection level and sensitivity of glucose is about 50 nM and 1301.39 mu AmM-1 cm(-2), respectively in short response time. The Co3O4/GCE sensor also exhibited electrocatalytic activity towards dopamine with wide response range of 500 nM to 407 mu M with the correlation coefficient of R-2 = 0.9939 and the sensitivity of Co3O4/GCE calculated to 0.24 mu A mu M(-1)cm(-2) and the sensor exhibits the detection limit to dopamine around 240 nM. The cobalt oxide nanorods show more potent fungal activity towards the Aspergillus niger and Candida albicans as the standard used.
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