Rafiq Ahmad

Dr. Rafiq Ahmad

'New-Senior' Oriented Smart Health Care Education Center, Pukyong National University, Busan, Republic of Korea
orcid

Research Focus & Metrics

Academic Career Length

16Years (2011-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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18 July 2017 in Scientific Reports
Verified
Journal Article
Open access
PDF file
Rafiq AhmadRafiq Ahmad
Rafiq Ahmad
NTNirmalya Tripathy
Nirmalya Tripathy
MAMin-Sang Ahn
Min-Sang Ahn
KBKiesar Sideeq Bhat
Kiesar Sideeq Bhat
TMTahmineh Mahmoudi
Tahmineh Mahmoudi
YHYoon-Bong Hahn
Yoon-Bong Hahn
There is a major challenge to attach nanostructures on to the electrode surface while retaining their engineered morphology, high surface area, physiochemical features for promising sensing applications. In this study, we have grown vertically-aligned ZnO nanorods (NRs) on fluorine doped tin oxide (FTO) electrodes and decorated with CuO to achieve high-performance non-enzymatic glucose sensor. This unique CuO-ZnO NRs hybrid provides large surface area and an easy substrate penetrable structure facilitating enhanced electrochemical features towards glucose oxidation. As a result, fabricated electrodes exhibit high sensitivity (2961.7 μA mM−1 cm−2), linear range up to 8.45 mM, low limit of detection (0.40 μM), and short response time (<2 s), along with excellent reproducibility, repeatability, stability, selectivity, and applicability for glucose detection in human serum samples. Circumventing, the outstanding performance originating from CuO modified ZnO NRs acts as an efficient electrocatalyst for glucose detection and as well, provides new prospects to biomolecules detecting device fabrication.

9 August 2012 in Chemical Communications
Verified
Journal Article
Closed access
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YHYoon-Bong Hahn
Yoon-Bong Hahn
Rafiq AhmadRafiq Ahmad
Rafiq Ahmad
NTNirmalya Tripathy
Nirmalya Tripathy
Unique and fascinating features of metal oxide nanostructures (MONs) have attracted considerable attention in recent years because without much effort, the MONs can be grown in many different nanoscale forms, thus allowing various novel devices of chemical and biological sensing to be fabricated. To improve the sensors performance by tailoring the properties of MONs through engineering of morphology, particle size, effective surface area, functionality, adsorption capability and electron-transfer properties have been extensively explored. This feature article collates the various MONs and their potential applications in the chemical and biological sensors for clinical and non-clinical applications.

1 December 2018 in Materials Today Communications
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Journal Article
Open access
Rafiq AhmadRafiq Ahmad
Rafiq Ahmad
OWOtto Wolfbeis
Otto Wolfbeis
YHYoon-Bong Hahn
Yoon-Bong Hahn
HAHusam N. Alshareef
Husam N. Alshareef
Luisa TorsiLuisa Torsi
Luisa Torsi
Khaled Nabil SalamaKhaled Nabil Salama
Khaled Nabil Salama

26 September 2013 in Analytical Chemistry
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Journal Article
Closed access
Rafiq AhmadRafiq Ahmad
Rafiq Ahmad
Mohammad VaseemMohammad Vaseem
Mohammad Vaseem
NTNirmalya Tripathy
Nirmalya Tripathy
YHYoon-Bong Hahn
Yoon-Bong Hahn

2 November 2020 in Biomolecules
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Journal Article
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IWIram Wahid
Iram Wahid
SKSarika Kumari
Sarika Kumari
Rafiq AhmadRafiq Ahmad
Rafiq Ahmad
SHSofi J. Hussain
Sofi J. Hussain
SASaud Alamri
Saud Alamri
M. Iqbal R. KhanM. Iqbal R. Khan
M. Iqbal R. Khan
Salinity is major abiotic stress affecting crop yield, productivity and reduces the land-usage area for agricultural practices. The purpose of this study is to analyze the effect of green-synthesized silver nanoparticle (AgNP) on physiological traits of wheat (Triticum aestivum) under salinity stress. Using augmented and high-throughput characterization of synthesized AgNPs, this study investigated the proximity of AgNPs-induced coping effects under stressful cues by measuring the germination efficiency, oxidative-biomarkers, enzymatic and non-enzymatic antioxidants, proline and nitrogen metabolism, stomatal dynamics, and ABA content. Taken together, the study shows a promising approach in salt tolerance and suggests that mechanisms of inducing the salt tolerance depend on proline metabolism, ions accumulation, and defense mechanisms. This study ascertains the queries regarding the correlation between nanoparticles use and traditional agriculture methodology; also significantly facilitates to reach the goal of sustainable developments for increasing crop productivity via much safer and greener approachability.

1 August 2019 in Advances in Colloid and Interface Science
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Journal Article
Closed access
Rafiq AhmadRafiq Ahmad
Rafiq Ahmad
Sanjit  Manohar MajhiSanjit Manohar Majhi
Sanjit Manohar Majhi
XZXixiang Zhang
Xixiang Zhang
Timothy SwagerTimothy Swager
Timothy Swager
Khaled Nabil SalamaKhaled Nabil Salama
Khaled Nabil Salama