Phytogenic synthesis of Co3O4 nanorods and its application in biomolecule sensing and antifungal activity

被引:7
作者
Muthukumar, Thennila [1 ,2 ]
Arumugam, Elangovan [1 ]
Chandrasekaran, Sharmila [1 ]
Karuppiah, Chelladurai [3 ]
Kodirajan, Selvakumar [1 ]
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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页数:8
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共 38 条
[1]   Cobalt Oxide Nanoflowers for Electrochemical Determination of Glucose [J].
Balouch, Quratulain ;
Ibupoto, Zafar Hussain ;
Khaskheli, Ghulam Qadir ;
Soomro, Razium Ali ;
Sirajuddin ;
Samoon, Muhammad Kashif ;
Deewani, Vinod Kumar .
JOURNAL OF ELECTRONIC MATERIALS, 2015, 44 (10) :3724-3732
[2]   Green synthesis of Co3O4 nanoparticles via Aspalathus linearis: Physical properties [J].
Diallo, A. ;
Beye, A. C. ;
Doyle, T. B. ;
Park, E. ;
Maaza, M. .
GREEN CHEMISTRY LETTERS AND REVIEWS, 2015, 8 (3-4) :30-36
[3]   Electrospun Co3O4 nanofibers for sensitive and selective glucose detection [J].
Ding, Yu ;
Wang, Ying ;
Su, Liang ;
Bellagamba, Michael ;
Zhang, Heng ;
Lei, Yu .
BIOSENSORS & BIOELECTRONICS, 2010, 26 (02) :542-548
[4]   Hydrothermal synthesis of Co3O4 nanorods on nickel foil [J].
Dong, Chengjun ;
Xiao, Xuechun ;
Chen, Gang ;
Guan, Hongtao ;
Wang, Yude .
MATERIALS LETTERS, 2014, 123 :187-190
[5]   Leaf-templated synthesis of 3D hierarchical porous cobalt oxide nanostructure as direct electrochemical biosensing interface with enhanced electrocatalysis [J].
Han, Lei ;
Yang, Da-Peng ;
Liu, Aihua .
BIOSENSORS & BIOELECTRONICS, 2015, 63 :145-152
[6]   Metal-organic framework templated synthesis of Co3O4 nanoparticles for direct glucose and H2O2 detection [J].
Hou, Chuantao ;
Xu, Qin ;
Yin, Lina ;
Hu, Xiaoya .
ANALYST, 2012, 137 (24) :5803-5808
[7]   Nanoporous cobalt oxide nanowires for non-enzymatic electrochemical glucose detection [J].
Kang, Luqi ;
He, Daiping ;
Bie, Lili ;
Jiang, Ping .
SENSORS AND ACTUATORS B-CHEMICAL, 2015, 220 :888-894
[8]   Structural elucidation and spectral characterizations of Co3O4 nanoflakes [J].
Kaviyarasu, K. ;
Raja, A. ;
Devarajan, Prem Anand .
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, 2013, 114 :586-591
[9]   Gold nanoparticles in nonenzymatic electrochemical detection of sugars [J].
Kurniawan, Fredy ;
Tsakova, Vessela ;
Mirsky, Vladimir M. .
ELECTROANALYSIS, 2006, 18 (19-20) :1937-1942
[10]   A highly sensitive enzyme-free glucose sensor based on Co3O4 nanoflowers and 3D graphene oxide hydrogel fabricated via hydrothermal synthesis [J].
Le Thuy Hoa ;
Chung, Jin Suk ;
Hur, Seung Hyun .
SENSORS AND ACTUATORS B-CHEMICAL, 2016, 223 :76-82