Coordination behavior of theophylline with Au(III) and electrochemical reduction of the complex

Jin, Lei; Liu, Cheng; Yang, Fang‐Zu; Wu, De‐Yin; Zhang, Tian

doi:10.1016/j.electacta.2019.02.118

Cited by 20 publications

(17 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The Raman results of the pure TPH, TPH-loaded ChewTs measured during the different time points of the stability study, and the corresponding drug-free placebo extrudate measured on day 1 of the stability study are presented in a range of 1800 to 400 cm −1 in Figure 8. The characteristic peaks of TPH are highlighted in the figure and are all in line with the literature [55]. The bending vibrations of C-N-C can be found at 449 cm −1 , N-C-C at 499 cm −1 , and C=C-C at 550 cm −1 .…”

Section: Mechanical Strengthsupporting

confidence: 84%

Compounding Tailored Veterinary Chewable Tablets Close to the Point-of-Care by Means of 3D Printing

et al. 2022

View full text Add to dashboard Cite

Certain patient populations receive insufficient medicinal treatment due to a lack of commercially available products. The number of approved veterinary products is limited, making animals a patient population with suboptimal medicinal treatments available. To answer to this unmet need, compounding and off-label use of human-marketed products are practiced. Both of which have a significant risk of preparation errors. Hence, there is a dire demand to find and implement a more automated approach to the accurate, precise, and rapid production of veterinary dosage forms close to the point-of-care. This study aimed to assess the use of semi-solid extrusion-based 3D printing for the preparation of tailored doses of theophylline in the form of a chewable dosage form suitable for veterinary use. This study proved that semi-solid extrusion-based 3D printing could successfully be utilized to manufacture pet-friendly, chewable theophylline-loaded tablets. The prepared dosage forms showed a high correlation (R2 = 0.9973) between the designed size and obtained drug amount and met the USP and Ph. Eur. content uniformity criteria. Furthermore, the stability study showed the dosage form being stable and able to be used for up to three months after printing.

show abstract

Section: Mechanical Strengthsupporting

confidence: 84%

Compounding Tailored Veterinary Chewable Tablets Close to the Point-of-Care by Means of 3D Printing

et al. 2022

View full text Add to dashboard Cite

show abstract

“…It can be seen that the reduction peak potential shifts negatively as the scan rate increases. Since the reduction peak potential is independent of the scan rate, this indicates that the electrodeposition of Cu in the electrolytes with and without PVP addition is an irreversible process [19] . With PVP addition, the cathodic current density is significantly reduced, and only incomplete profiles of the reduction peak can be observed due to its negative shift.…”

Section: Resultsmentioning

confidence: 95%

Size Refinement of Copper Nanoparticles: A Perspective from Electrochemical Nucleation and Growth Mechanism

et al. 2021

View full text Add to dashboard Cite

In this paper, isotropic copper nanoparticles (CuNPs) were successfully sythesized by using Cu(CH3COO)2 and ascorbic acid in absolute ethanol solution. With the addition of polyvinylpyrrolidone (PVP) protective additive, the size distribution range of the synthesized CuNPs was significantly reduced from 650±415 nm to 51±12 nm. Electrodeposition analysis revealed that PVP could greatly suppress the reduction of Cu but had no prominent effects on the deposition mechanism. Based on the potentiostatic deposition results, a growth model was proposed to improve the applicability of the Scharifker‐Hills model by considering both the surface inhibition effect and the mass diffusion during the growth process of Cu nuclei. The experimental data fitted well with the prediction results from the proposed model, indicating that the electrodeposition of Cu followed the progressive nucleation process. The PVP additive could inhibit the deposition and growth of Cu by increasing the surface inhibition for cation incorporation on the nuclei, which was probably the main reason for the refinement of the sythesized CuNPs. Our findings can provide insights for the preparation of metallic nanoparticles and the understanding of their deposition mechanism.

show abstract

“…[30][31][32] Tian et al investigated the coordination behavior between the theophylline (THP) molecule and Au(III) ion. The stability constant, Kf, of the THP-Au(III) ion is 2.7 × 10 35 [33]. This indicates that regulating the electronic structure of gold ions can effectively suppress their reduction.…”

Section: Introductionmentioning

confidence: 97%

Carbon-supported ruthenium catalysts prepared by a coordination strategy for acetylene hydrochlorination

Wang

Lan

Cheng

et al. 2020

Chinese Journal of Catalysis

View full text Add to dashboard Cite

Coordination behavior of theophylline with Au(III) and electrochemical reduction of the complex

Cited by 20 publications

References 31 publications

Compounding Tailored Veterinary Chewable Tablets Close to the Point-of-Care by Means of 3D Printing

Compounding Tailored Veterinary Chewable Tablets Close to the Point-of-Care by Means of 3D Printing

Size Refinement of Copper Nanoparticles: A Perspective from Electrochemical Nucleation and Growth Mechanism

Carbon-supported ruthenium catalysts prepared by a coordination strategy for acetylene hydrochlorination

Contact Info

Product

Resources

About