Polyvinyl Alcohol Scaffold Incorporated with Silver Nanoparticles and Titanium Dioxide: Electrical, Dielectric, Dye Degradation, and Antibacterial Properties

Saji, Joel; Umapathi, Akhela; Manohara, S.R.; Navya, P. N.; Kumawat, Mamta; Prakash, Divya; Daima, Hemant Kumar

doi:10.1007/978-981-16-0942-8_36

Cited by 3 publications

(3 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The σ of the porous nHA/S composites increases when frequency increases. The acceleration of the movement of electrons (migrating, hopping, and tunneling) dominate the σ, which indicates compliance with the universal power law [ 9 , 42 , 56 , 59 ]. As the starch proportion increases from 30 to 50 wt%, the σ of the porous nHA/S composites decreases, as shown in Figure 6 b,c.…”

Section: Resultsmentioning

confidence: 84%

“…This might be due to the proportion of the porous nHA/S composites reaching a critical range that leads to the formation of the large micro-capacitor network and strong interfacial or space–charge polarization (Maxwell–Wagner–Sillars effect), which can enhance the ε′. It is known as the dielectric percolation threshold effect [ 10 , 14 , 19 , 42 ]. The hydroxyapatite nanoparticles entrapped in the starch matrices, which are separated by air voids in the porous nHA/S composites, can be served as multiple micro-capacitor networks with a large capacity to store electric charges during polarization [ 7 , 10 , 43 ].…”

Section: Resultsmentioning

confidence: 99%

“…The highest ε″ of the porous nHA/S composite with 90 wt% starch proportion is exhibited among the other porous composites over the frequency, as shown in Figure 4 a,c. The porous nHA/S composite (H1S9) with the highest starch proportion produces the dense porous structure, which also contributes to the higher homogeneity in the heterogeneous nHA/S composite that enhances the direct current conductance and energy dissipation [ 20 , 40 , 42 ].…”

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Regression Analysis of the Dielectric and Morphological Properties for Porous Nanohydroxyapatite/Starch Composites: A Correlative Study

You

Cheng

Nasir

et al. 2022

IJMS

View full text Add to dashboard Cite

This paper aims to investigate the dielectric properties, i.e., dielectric constant (ε′), dielectric loss factor (ε″), dielectric tangent loss (tan δ), electrical conductivity (σ), and penetration depth (Dp), of the porous nanohydroxyapatite/starch composites in the function of starch proportion, pore size, and porosity over a broad band frequency range of 5 MHz–12 GHz. The porous nanohydroxyapatite/starch composites were fabricated using different starch proportions ranging from 30 to 90 wt%. The results reveal that the dielectric properties and the microstructural features of the porous nanohydroxyapatite/starch composites can be enhanced by the increment in the starch proportion. Nevertheless, the composite with 80 wt% of starch proportion exhibit low dielectric properties (ε′, ε″, tan δ, and σ) and a high penetration depth because of its highly interconnected porous microstructures. The dielectric properties of the porous nanohydroxyapatite/starch composites are highly dependent on starch proportion, average pore size, and porosity. The regression models are developed to express the dielectric properties of the porous nanohydroxyapatite/starch composites (R2 > 0.96) in the function of starch proportion, pore size, and porosity from 1 to 11 GHz. This dielectric study can facilitate the assessment of bone scaffold design in bone tissue engineering applications.

show abstract

Section: Resultsmentioning

confidence: 84%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Regression Analysis of the Dielectric and Morphological Properties for Porous Nanohydroxyapatite/Starch Composites: A Correlative Study

You

Cheng

Nasir

et al. 2022

IJMS

View full text Add to dashboard Cite

show abstract

Dielectric and biodegradation properties of biodegradable nano-hydroxyapatite/starch bone scaffold

You

Cheng

Nasir

et al. 2022

Journal of Materials Research and Technology

View full text Add to dashboard Cite

Smart nanomaterials for cancer diagnosis and treatment

et al. 2022

Self Cite

View full text Add to dashboard Cite

Innovations in nanomedicine has guided the improved outcomes for cancer diagnosis and therapy. However, frequent use of nanomaterials remains challenging due to specific limitations like non-targeted distribution causing low signal-to-noise ratio for diagnostics, complex fabrication, reduced-biocompatibility, decreased photostability, and systemic toxicity of nanomaterials within the body. Thus, better nanomaterial-systems with controlled physicochemical and biological properties, form the need of the hour. In this context, smart nanomaterials serve as promising solution, as they can be activated under specific exogenous or endogenous stimuli such as pH, temperature, enzymes, or a particular biological molecule. The properties of smart nanomaterials make them ideal candidates for various applications like biosensors, controlled drug release, and treatment of various diseases. Recently, smart nanomaterial-based cancer theranostic approaches have been developed, and they are displaying better selectivity and sensitivity with reduced side-effects in comparison to conventional methods. In cancer therapy, the smart nanomaterials-system only activates in response to tumor microenvironment (TME) and remains in deactivated state in normal cells, which further reduces the side-effects and systemic toxicities. Thus, the present review aims to describe the stimulus-based classification of smart nanomaterials, tumor microenvironment-responsive behaviour, and their up-to-date applications in cancer theranostics. Besides, present review addresses the development of various smart nanomaterials and their advantages for diagnosing and treating cancer. Here, we also discuss about the drug targeting and sustained drug release from nanocarriers, and different types of nanomaterials which have been engineered for this intent. Additionally, the present challenges and prospects of nanomaterials in effective cancer diagnosis and therapeutics have been discussed.

show abstract

Polyvinyl Alcohol Scaffold Incorporated with Silver Nanoparticles and Titanium Dioxide: Electrical, Dielectric, Dye Degradation, and Antibacterial Properties

Cited by 3 publications

References 52 publications

Regression Analysis of the Dielectric and Morphological Properties for Porous Nanohydroxyapatite/Starch Composites: A Correlative Study

Regression Analysis of the Dielectric and Morphological Properties for Porous Nanohydroxyapatite/Starch Composites: A Correlative Study

Dielectric and biodegradation properties of biodegradable nano-hydroxyapatite/starch bone scaffold

Smart nanomaterials for cancer diagnosis and treatment

Contact Info

Product

Resources

About