Hierarchical ZnO nanorods/Ni(OH)2 nanoflakes for room-temperature, cheap fabrication of non-enzymatic glucose sensors

RSC Advances ◽  
2016 ◽  
Vol 6 (112) ◽  
pp. 111374-111379 ◽  
Author(s):  
V. Strano ◽  
S. Mirabella
Keyword(s):  
Room Temperature ◽  
Zno Nanorods ◽  
Glucose Sensing ◽  
Glucose Sensors ◽  
Hierarchical Nanostructures ◽  
Sensing Applications

Optimization of hierarchical nanostructures composed of Ni(OH)2 nanoflakes on ZnO nanorods (NRs) for inexpensive amperometric glucose sensing applications.

Sol–gel synthesis of Pd doped ZnO nanorods for room temperature hydrogen sensing applications

2013 ◽  
Vol 39 (6) ◽  
pp. 6461-6466 ◽  
Author(s):  
M. Kashif ◽  
M.E. Ali ◽  
Syed M. Usman Ali ◽  
U. Hashim
Keyword(s):  
Room Temperature ◽  
Sol Gel ◽  
Zno Nanorods ◽  
Hydrogen Sensing ◽  
Sensing Applications ◽  
Doped Zno ◽  
Sol Gel Synthesis

Investigation of Anions Effects on the Morphology of NiO Nanostructures and Their Non-Enzymatic Glucose Sensing Applications

2021 ◽  
Vol 13 (9) ◽  
pp. 1739-1747
Author(s):  
Ramesh Lal ◽  
Abdul Qayoom Mugheri ◽  
Ali Asghar Sangha ◽  
Shaista Khan ◽  
Bhajan Lal ◽  
...  
Keyword(s):  
Nickel Sulfate ◽  
Nickel Chloride ◽  
Glucose Sensing ◽  
Glucose Sensors ◽  
Chloride Salt ◽  
Amperometric Response ◽  
Glucose Levels ◽  
Sensing Applications ◽  
Sulfate Salts ◽  
The Impact

It is essential to study the impact of anions happening the morphology of nanomaterials to prepare nanostructures with well-defined shape. This present work is based on the effect of anions (acetate, chloride, nitrate, and sulfate) on the morphology of nickel oxide nanostructures material synthesized by a simple hydrothermal method. The prepared composite material structures were studied by XRD, SEM), and TEM. The synthesized nanostructures were fabricated for the non-enzymatic glucose sensors. These sensors can be used for the non-enzymatic glucose sensors to take a fast amperometric response less time. The sensitivity for all four sensors of NiO grown using nickel acetate, nickel chloride, nickel nitrate, and nickel sulfate salts are in order of 212.71, 519, 419.57, and 79.28 μA/mM·cm2 respectively. The detection limits were estimated in the order of 0.1 to 1.0 μM. The NiO nanostructures grown with nickel chloride salt were found the most sensitive in this respect and subjected to evaluation of other competing species during glucose-sensing such as ascorbic acid, uric acid, and sucrose. The found best NiO nanomaterial remained positively used to quantify glucose levels in the blood serum of humans.

scholarly journals Recent Advances in Enzymatic and Non-Enzymatic Electrochemical Glucose Sensing

Sensors ◽  
2021 ◽  
Vol 21 (14) ◽  
pp. 4672
Author(s):  
Mohamed H. Hassan ◽  
Cian Vyas ◽  
Bruce Grieve ◽  
Paulo Bartolo
Keyword(s):  
Noble Metals ◽  
Direct Electrochemistry ◽  
Glucose Sensing ◽  
Glucose Sensors ◽  
Diabetic Patients ◽  
Past Century ◽  
Industrial Sectors ◽  
Recent Advances ◽  
Wide Range ◽  
Sensitivity And Selectivity

The detection of glucose is crucial in the management of diabetes and other medical conditions but also crucial in a wide range of industries such as food and beverages. The development of glucose sensors in the past century has allowed diabetic patients to effectively manage their disease and has saved lives. First-generation glucose sensors have considerable limitations in sensitivity and selectivity which has spurred the development of more advanced approaches for both the medical and industrial sectors. The wide range of application areas has resulted in a range of materials and fabrication techniques to produce novel glucose sensors that have higher sensitivity and selectivity, lower cost, and are simpler to use. A major focus has been on the development of enzymatic electrochemical sensors, typically using glucose oxidase. However, non-enzymatic approaches using direct electrochemistry of glucose on noble metals are now a viable approach in glucose biosensor design. This review discusses the mechanisms of electrochemical glucose sensing with a focus on the different generations of enzymatic-based sensors, their recent advances, and provides an overview of the next generation of non-enzymatic sensors. Advancements in manufacturing techniques and materials are key in propelling the field of glucose sensing, however, significant limitations remain which are highlighted in this review and requires addressing to obtain a more stable, sensitive, selective, cost efficient, and real-time glucose sensor.

Hierarchical nanostructures self-assembled from δ-MnO2 ultrathin nanosheets and Mn3O4 octahedrons for efficient room-temperature HCHO oxidation

2021 ◽  
Author(s):  
Lifang Qi ◽  
Yao Le ◽  
Chao Wang ◽  
Rui Lei ◽  
Tian Wu
Keyword(s):  
Room Temperature ◽  
Hierarchical Nanostructures ◽  
Low Level ◽  
Ultrathin Nanosheets ◽  
Self Assembling ◽  
Formaldehyde Oxidation ◽  
Self Assembled

Self-assembling ultrathin active δ-MnO2 nanosheets and Mn3O4 octahedrons into hierarchical texture enhances room-temperature formaldehyde oxidation at a low-level of Pt.

scholarly journals Transforming Pt-SnO2 Nanoparticles into Pt-SnO2 Composite Nanoceramics for Room-Temperature Hydrogen-Sensing Applications

Materials ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2123
Author(s):  
Ming Liu ◽  
Caochuang Wang ◽  
Pengcheng Li ◽  
Liang Cheng ◽  
Yongming Hu ◽  
...  
Keyword(s):  
Room Temperature ◽  
Gas Sensing ◽  
Sintering Temperature ◽  
Sno2 Nanoparticles ◽  
Hydrogen Sensing ◽  
Sensing Applications ◽  
Nanostructured Metal Oxides ◽  
Low Dimensional ◽  
Sensing Characteristics ◽  
Nanostructured Metal

Many low-dimensional nanostructured metal oxides (MOXs) with impressive room-temperature gas-sensing characteristics have been synthesized, yet transforming them into relatively robust bulk materials has been quite neglected. Pt-decorated SnO2 nanoparticles with 0.25–2.5 wt% Pt were prepared, and highly attractive room-temperature hydrogen-sensing characteristics were observed for them all through pressing them into pellets. Some pressed pellets were further sintered over a wide temperature range of 600–1200 °C. Though the room-temperature hydrogen-sensing characteristics were greatly degraded in many samples after sintering, those samples with 0.25 wt% Pt and sintered at 800 °C exhibited impressive room-temperature hydrogen-sensing characteristics comparable to those of their counterparts of as-pressed pellets. The variation of room-temperature hydrogen-sensing characteristics among the samples was explained by the facts that the connectivity between SnO2 grains increases with increasing sintering temperature, and Pt promotes oxidation of SnO2 at high temperatures. These results clearly demonstrate that some low-dimensional MOX nanocrystals can be successfully transformed into bulk MOXs with improved robustness and comparable room-temperature gas-sensing characteristics.

ZnO Nanorods/Polyaniline-Based Inorganic/Organic Heterojunctions for Enhanced Light Sensing Applications

2015 ◽  
Vol 5 (3) ◽  
pp. P142-P147 ◽  
Author(s):  
Rawnaq A. Talib ◽  
M. J. Abdullah ◽  
Sabah M. Mohammad ◽  
Naser M. Ahmed ◽  
Nageh K. Allam
Keyword(s):  
Zno Nanorods ◽  
Light Sensing ◽  
Sensing Applications ◽  
Organic Heterojunctions

scholarly journals Resonant exciton-phonon coupling in ZnO nanorods at room temperature

AIP Advances ◽  
2011 ◽  
Vol 1 (3) ◽  
pp. 032135 ◽  
Author(s):  
Soumee Chakraborty ◽  
S. Dhara ◽  
T. R. Ravindran ◽  
S. Sarkar Pal ◽  
M. Kamruddin ◽  
...  
Keyword(s):  
Room Temperature ◽  
Zno Nanorods ◽  
Phonon Coupling
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