Historical Fundamentals of X‐Ray Instruments and Present Trends in Biological Science

Rawat, Kanishka; Sharma, Neha; Singh, Vivek K.

doi:10.1002/9781119645719.ch36

Cited by 1 publication

(2 citation statements)

References 32 publications

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“…EDX analyzer has be a better and more accurate approach to find out the elemental composition of a material. The elemental ratios greater than 10 −3 ppm can be identified using XRF spectroscopy 43 . Thus, XRF provides an analysis method for partial element identification.…”

Section: Resultsmentioning

confidence: 99%

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Preparation of cellulose nanowhiskers‐reinforced polyurethane: Photoresponsive plastic with ultraviolet protection and superhydrophobic properties

Al‐Qahtani,

Al‐Senani

2024

J of Applied Polymer Sci

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Transparent, photoluminescent, mechanically reliable, ultraviolet protective and superhydrophobic thermoplastic polyurethane (TPU) plastic was developed. A simple strategy to prepare transparent plastic that glows in the dark is to use alkaline earth strontium aluminate (AESA) nanoparticles trapped in thermoplastic polyurethane (TPUR). In order to improve both hardness and transparency of the plastic composite, cellulose nanowhiskers were used as a crosslinker and drier. The colorless plastic substrates exhibited a color shift to greenish when exposed to ultraviolet source. Transmission electron microscope (TEM) was employed to examine the morphology of AESA nanoparticles (8–15 nm in diameter) and cellulose nanowhiskers (3–7 nm in width and 645–665 nm in length). Morphological studies and hardness parameters were used to assess the TPUR samples. Excitation and emission spectral analyses were also employed to study the photoluminescence characteristics. The colorless plastic substrates that were made luminescent showed an excitation band at 388 nm and two emission bands at 452 nm and 515 nm. TPUR samples with greater AESA levels exhibited long‐persistent afterglow, whereas TPUR samples with lower AESA amounts exhibited rapid and reversible fluorescence when irradiated with ultraviolet light. Enhanced UV shielding and superhydrophobicity were observed in the photoluminescent plastic substrates upon increasing the phosphor content.

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Section: Resultsmentioning

confidence: 99%

“…The elemental ratios greater than 10 À3 ppm can be identified using XRF spectroscopy. 43 Thus, XRF provides an analysis method for partial element identification. Thus, XRF analysis revealed the existence of strontium and aluminum but failed to detect the trace amounts of dysprosium and europium.…”

Section: Morphological Characterizationmentioning

confidence: 99%

Preparation of cellulose nanowhiskers‐reinforced polyurethane: Photoresponsive plastic with ultraviolet protection and superhydrophobic properties

Al‐Qahtani,

Al‐Senani

2024

J of Applied Polymer Sci

View full text Add to dashboard Cite

show abstract

Historical Fundamentals of X‐Ray Instruments and Present Trends in Biological Science

Cited by 1 publication

References 32 publications

Preparation of cellulose nanowhiskers‐reinforced polyurethane: Photoresponsive plastic with ultraviolet protection and superhydrophobic properties

Preparation of cellulose nanowhiskers‐reinforced polyurethane: Photoresponsive plastic with ultraviolet protection and superhydrophobic properties

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