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Physical Isolation Strategy in Multi-Layer Self-Nanoemulsifying Pellets: Improving Dissolution and Drug Loading Efficiency of Ramipril.
J Pharm Sci
January 2025
Department of Pharmaceutics, College of Pharmacy, King Saud University, POBOX-2457, Riyadh 11451, Kingdom of Saudi Arabia; Kayyali Chair for Pharmaceutical Industries, Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Kingdom of Saudi Arabia. Electronic address:
Background And Purpose: Liquid self-nanoemulsifying drug delivery systems (SNEDDS) face challenges related to stability, handling, and storage. In particular, lipophilic and unstable drugs, such as ramipril (RMP) and thymoquinone (THQ), face challenges in oral administration due to poor aqueous solubility and chemical instability. This study aimed to develop and optimize multi-layer self-nanoemulsifying pellets (ML-SNEP) to enhance the stability and dissolution of ramipril (RMP) and thymoquinone (THQ).
View Article and Find Full Text PDFPromising mass spectrometry imaging: exploring microscale insights in food.
Crit Rev Food Sci Nutr
January 2025
State Key Laboratory of Marine Food Processing and Safety Control, College of Food Science and Engineering, Ocean University of China, Qingdao, China.
This review focused on mass spectrometry imaging (MSI), a powerful tool in food analysis, covering its ion source schemes and procedures and their applications in food quality, safety, and nutrition to provide detailed insights into these aspects. The review presented a detailed introduction to both commonly used and emerging ionization sources, including nanoparticle laser desorption/ionization (NPs-LDI), air flow-assisted ionization (AFAI), desorption ionization with through-hole alumina membrane (DIUTHAME), plasma-assisted laser desorption ionization (PALDI), and low-temperature plasma (LTP). In the MSI process, particular emphasis was placed on quantitative MSI (QMSI) and super-resolution algorithms.
View Article and Find Full Text PDFEffects of pre-oxidation temperature and air volume on oxidation thermogravimetric and functional group change of lignite.
PLoS One
January 2025
College of Safety Science and Engineering, Liaoning Technical University, Fuxin, Liaoning, China.
To investigate the impact of the oxidation temperature and variations in airflow conditions on coal spontaneous combustion characteristics, pre-oxidized coal samples were prepared using a programmed temperature rise method. Synchronous thermal analysis experiments and Fourier transform infrared spectroscopy were conducted to explore changes in the thermal effects and functional group content of the coal samples, respectively. The results indicate that variations in pre-oxidation conditions primarily in fluence the activation temperature and maximum weight loss temperature of the coal samples, while exerting a lesser impact on the critical temperature and ignition point.
View Article and Find Full Text PDFInfluence law of air flow and water immersion duration on the risk of secondary oxidation spontaneous combustion of coal.
Sci Rep
January 2025
School of Civil and Transportation Engineering, Ningbo University of Technology, NiBo, 315211, China.
Article Synopsis
- The study investigates the risk of spontaneous combustion in lignite coal under varying air flows and immersion times.
- It finds that long-term water-immersed coal shows lower oxygen consumption and heat release at higher temperatures during the primary oxidation process compared to short-term water-immersed coal.
- In the secondary oxidation phase, long-term water-immersed coal has higher oxygen consumption and heat release rates, while increased air flow and longer immersion times elevate the risk of spontaneous combustion.
In vitro evaluation of frozen thawed kangayam bull semen enriched with antioxidants.
Pol J Vet Sci
September 2024
Department of Clinics, Veterinary College and Research Institute, Tamil Nadu Veterinary and Animal Sciences University, Namakkal-637 001, India.
The aim of this study was to assess the in vitro penetration rate of antioxidant enriched frozen thawed Kangayam bull semen. For the current investigation, 5-7-year-old Kangayam bulls were used. The semen was collected twice per week and two ejaculates were collected each time.
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