Particle size

This study outlines a nanotechnology-based method to enhance its solubility and absorption of rosuvastatin. The process entails the formulation of rosuvastatin nanoparticles through a combination of precipitation and ultrasonic techniques. Rosuvastatin is initially dissolved in an organic solvent, such as acetone, and subsequently mixed with an aqueous phase containing stabilizers like Poloxamer 407 or PVP to induce precipitation. Ultrasound reduces particle size to 50-200 nm.

10p tuongmotranh 18-03-2025 1 1   Download

In the manufacturing procedure at open-pit mines, tunnel construction or channel excavation activities, crushing rocks to a suitable grain size is one of the first technological steps, directly affecting the efficiency of the following steps in the overall process of drilling - blasting - loading - transporting.

14p viyamanaka 06-02-2025 1 1   Download

Is a branch of polymer science dealing with analysis and characterisation of polymers. üThe complication of macromolecular chains, the dispersion in molecular weight, tacticity, crystallinity, orientation, composition of polymers etc. and complex morphological systems ⇒ analysis of polymer ≠ the small organic materials ⇒ Focus on viscoelastic properties, dynamic mechanical testing.

114p buitiendung87 06-01-2011 345 154   Download

This study has adopted a systematic approach to identify the extent to which 20 kHz ultrasound affects the particle size and solubility of different protein solutions containing 4%, 7% and 10% whey proteins, caseins or a mixture at a range of energy densities (15-400 J/mL) and various pH (4.0-9.0). Milk proteins hold a prominent place in the food industry as they are used in many manufactured products for their functionality and most importantly nutritional benefits.

136p runthenight04 02-02-2023 9 2   Download

For this study, different volume fraction (vol.%) of particulate alumina (Al2O3) reinforced aluminium alloy (Al 6061) with 5 vol.%, 15 vol.% and 25 vol.% are produced by powder metallurgy method. These samples were subjected to biaxial stresses in order to investigate the behaviour of the metal matrix composites (MMCs). Microstructure analysis on the individual sample before and after loading was performed under scanning electron microscopy. The small particles of 2 µm in size have exhibited strong interfacial bonding with the matrix.

15p 12120609 01-06-2020 15 1   Download

The superabsorbent polymers based on acrylic acid have been prepared in the presence of ammonium persulfate (APS) as initiator and N,N-methylene- bis- acrylamide (MBA) as crosslinking agent. The suspension polymerisation occurred in aqueous drops dispersed in toluene and stabilised by sorbitan monooleate. Some effects on the swelling degree and size particles such as concentrations of MBA and initiator, neutralization degree (Dn) were studied. Swelling degree 405g/g, reach maximum at 85◦C and 0.09% crosslinking agent, 1.

6p 12120609 01-06-2020 13 2   Download

The low cycle fatigue (LCF) resistance of two different metal matrix composite (MMC) of AA6063 with 2% and 8% by volume silicon carbide (SiCp) particles having particulate size of 37 micron (400 mesh) at room temperature condition has been evaluated under fully reversed strain control testing.

15p tohitohi 19-05-2020 25 1   Download

The goad of the thesis is to build the manufacture process of nano-sized magnetic fluids based on iron oxide (uniform particle size and high magnetic saturation) with stable technology; Characteristic research of magnetic properties of magnetic nanoparticles; assessment of toxicity and test of effects on cells, aiming to make contrast medicine in imaging diagnosis by magnetic resonance imaging (MRI), application on accurately identifying cancer.

28p xacxuoc4321 08-07-2019 47 5   Download

Research targets of the thesis: (i) To thereticallystudy the overall characteristics of MIH and their impacts based on theoretical calculation (ii) To carry out experiments on the influence of alternating magnetic field, particle size and viscosity on specific loss power for CoFe2O4 and MnFe2O4, chosen as representative of respectively high K and low K magnetic nanoparticles; and to compare the experimental behavior with that obtained by theroretical calculations.

23p xacxuoc4321 08-07-2019 57 3   Download

Two FCC catalysts with a 60
m average size, prepared with different crystallite sizes (0.4 and 0.9
m), are studied in terms of total acidity, energy of ammonia desorption, specific surface area, relative amount of Brönsted and Lewis acid sites, crystallite and particle size, and micropore size distribution.

17p tuananhhumg 04-11-2013 63 6   Download

We describe sensitive new approaches for detecting and quantitatingprotein–lipid interactionsusinganalytical ultra-centrifugation and continuous size-distribution analysis [Schuck (2000)Biophys. J.78,1606–1619]. The newmethods were developed to investigate the binding of human apo-lipoprotein E (apoE) isoforms to size-fractionated lipid emulsions, and demonstrate that apoE3 binds preferentially tosmall lipidemulsions,whereas apoE4exhibits apreference for large lipid particles.

11p tumor12 22-04-2013 36 2   Download

Tuyển tập các báo cáo nghiên cứu khoa học trên tạp chí khoa học vật lý quốc tế đề tài: THE EFFECT OF ADDITIVES ON THE SIZE OF Fe3O4 PARTICLES

14p hoami_266 15-09-2011 68 5   Download

Tuyển tập các báo cáo nghiên cứu khoa học trên tạp chí khoa học vật lý quốc tế đề tài: Emulsion Polymers of Core-Shell Styrene-Butyl Acrylate: The Effect of Feeding and Aging Time on Particle Size Distribution

9p hoami_266 15-09-2011 76 7   Download

The plasma lipoproteins are divided into five major classes based on their relative density. - Each lipoprotein class comprises a family of particles that vary slightly in + Density + Size + Migration during electrophoresis + And protein composition. - Most plasma triglyceride is transported in chylomicrons or VLDLs, and most plasma cholesterol is carried as cholesteryl esters in LDLs and HDLs. II.

4p truongthiuyen1 08-06-2011 51 3   Download

Số thứ tự (Theo danh sách lớp) KL thể tích tự nhiên - g (Natural density) Độ bão hoà - G (Degree of saturation) Khối lượng riêng - D (Specific gravity) Độ ẩm tự nhiên - W (Moisture contents) Giới hạn chảy - WL (Liquid limit) KL thể tích khô - gc Giới hạn dẻo - WP (Plastic limit) Chỉ số dẻo - IP (Plasticity index) Thành phần hạt - P (Particle size analysis) - % Hệ số rỗng - eo (Void ratio) 0.01 - 0.005 0.05 - 0.01 0.5 - 0.25 0.25 - 0.1 0.1 - 0.05 ...

2p trinhchung_kt 04-10-2010 3103 251   Download