Recent advances in drug delivery and formulation最新文献

Colorectal disease is the third most prevelant cancer in both men and women, with an expected 106,180 new cases of colon cancer and 44,850 new cases of rectal cancer as per American Cancer Society. Targeted medicine delivery is vital in the treatment of colon disorders because it delivers long-term therapeutic results with little side effects. Natural polymer is biocompatible and biodegradable, which enables safety, improves storage, and physiological stability, it is utilized as drug delivery vehicles and has made great strides in recent years. Chitosan, alginate, pectin, guar gum, dextran, hyaluronic acid, and arabinoxylan are examples of natural polysaccharides that are utilized to create nanoparticles. Natural gums serve two purposes: first, they shield the medicine from stomach and intestinal conditions, allowing it to only be released in the colon. In this review, we introduce the different gum particularly used in nanoparticles formulation, and then discuss recent research and the latest patent in the development of gum-based nanoparticles for the treatment of colon rectal cancer.

The development of Monoclonal antibodies (mAbs) has also allowed researchers to understand the complexity of diseases better and find new treatments for difficult-to-treat conditions. Using mAbs, researchers can identify and target specific molecules in the body involved in the disease process. This has allowed for a more targeted treatment approach, which has resulted in improved outcomes for many patients. This hypothesis has been the basis for the development of mAbs that can target an array of illnesses. In the past two decades, therapeutic mAbs have been developed to treat cancer, autoimmune diseases, cardiovascular diseases, and metabolic diseases. For instance, using mAbs has improved outcomes in treating rheumatoid arthritis, multiple sclerosis, and Crohn's disease. However, delivering mAbs in biological systems remains a significant challenge in drug delivery. This is due to their large size, low stability in circulation, and difficulties in achieving their desired action in the target cells. Monoclonal antibodies (mAbs) are an essential tool in biological systems, as they can be used to deliver drugs to specific cell types or tissues. Cloning methods of monoclonal antibody production have been developed to produce mAbs with therapeutic potential. Hence, the present review focused on the development and drug delivery of Monoclonal antibodies (mAbs) in biological systems, which includes cloning methods, various drug delivery technologies, formulation production technology, and its applications in multiple diseases were focused for this review.

Background: The topical drug delivery system has gained more attention in recent years as compared to oral and parenteral drug delivery. However, owing to the barrier function of the skin's topmost layer, only a few drug molecules can be administered by this route. Therefore, encapsulating the drugs in glycerosomes is one potential solution to this problem. Glycerosomes are vesicular drug delivery systems primarily made up of large concentrations of glycerol, phospholipid, water, and other active ingredients.

Objective: The main aim of this review is to summarize the most recent information on the encapsulated vesicular system used in cosmetic preparations, specifically glycerosomes made from both synthetic and naturally occurring plant bioactive substances.

Purpose: Glycerosomes offer many benefits, including increased efficacy, better stability, improve absorption, drug targeting at specific sites, and delivering the same at a predetermined rate.

Method: The mechanism behind the penetration of glycerosomes is the hydration and lipid fluidization of skin, fabricated by glycerol.

Result: Numerous methods have been reported for the formulation of glycerosomes, including the thin film hydration method, reverse-phase evaporation, solvent spherule, detergent removal method, and so on.

Conclusion: Researchers are currently investigating the potential of glycerosomes as nanocarriers for natural bioactive and synthetic drugs. This review describes the structure of glycerosomes, preparation techniques, applications, distinctions from liposomes, and benefits of glycerosomes.

Background: Cystic fibrosis is the predominant autosomal recessive disorder known to reduce life expectancy. Research findings indicate that around 60 to 70% of adult individuals with this condition carry infections of Pseudomonas aeruginosa.

Objective: The ongoing research investigates the potential synergy of merging ivacaftor and ciprofloxacin to address bacterial infections.

Methods: The two drugs were spray-dried into microparticles, which were then coated with Lsalbutamol and were to be delivered by a dry powder inhaler. Microparticles were generated by applying the spray drying method, utilizing bovine serum albumin and L-leucine in their preparation. Additionally, L-salbutamol was mixed and adsorbed onto the surface of the spray-dried microparticles, and it acted as a bronchodilator.

Results: The microparticles produced via spray drying exhibited a particle size measuring 1.6 ± 0.04 μm, along with a polydispersity ratio of 0.33. Their zeta potential measured -27.3 ± 1.1 mV, while the mass median aerodynamic diameter of these microparticles was 3.74 ± 0.08 μm. SEM, XRD, and FTIR studies confirmed the entrapment of ivacaftor and ciprofloxacin. The morphology was observed by SEM and TEM scans. Antibacterial synergy was confirmed through the agar broth and dilution method, and the formulation's safety was established based on the outcomes of the MTT assay.

Conclusion: Using spray-dried microparticles containing ciprofloxacin, ivacaftor, and L-salbutamol presents a novel approach to the treatment of cystic fibrosis.

Objective: The purpose of this research was to optimize the design and construction of nanoparticle gel (TFN-NPs) loaded with tofacitinib citrate (TFN) using poly lactic co glycolic acid (PLGA).

Method: PLGA (A) as the polymer, polyvinyl alcohol (PVA) (B) as the stabilizer and stirring speed (C) as independent variables were used. TFN-NPs were prepared using single emulsion-solvent evaporation. Box Behnken Design (BBD) was used to determine the optimal component ratio of TFN-NPs based on point prediction.

Results: The entrapment efficiency, particle size, and cumulative drug release of the best-composed TFN-NPs were, respectively, 79.82±0.9%, 236.19±5.07 nm, and 82.31±1.23%; the PDI, zeta potential, and drug loading were, respectively, 0.297±0.21, -30.21±0.94mV, and 69.81±0.16%. Gel formulation employing Carbopol as a gelling polymer was then developed using the optimal TFN-NPs mixture. Gel characterization, drug release, permeation studies, irritation, and pharmacokinetic studies were also conducted. Further solid state and morphology were evaluated using FTIR, DSC, XRD, SEM, TEM, and AFM on the developed topical gel formulation (TFN-NPG) and TFN-NPs. The release and permeation investigations indicated that TFN was slowly released (38.42±2.87%) and had significantly enhanced penetration into the epidermal membrane of mice. The cumulative irritation score of 0.33 determined during testing suggested little discomfort. The generated nanogels are stable and have a high drug penetration profile over the skin, as shown by the findings. When compared to both pure TFN solutions, TFN-NPs and TFN-NPG demonstrated superior pharmacokinetic properties.

Conclusion: Based on the results, the NPs and NPG formulations were depicted to enhance the activity of TFN compared to the free drug solution. TFN could be a safe and effective treatment for Alopecia areata. The tofacitinib citrate NPG could be a clinically translatable, safer topical formulation for managing Alopecia areata.

Background: The main objective of the current research work is to improve the absorption of Nitrofurantoin (NFT) by minimizing gastrointestinal (GI) intolerance and variations in its absorption by formulating the drug into a nanoemulsion (NE).

Method: Based on the highest saturation solubility of NFT, soybean oil, transcutol HP, and labrafil M1944CS were selected as oil, co-surfactant, and surfactant, and a S_mix ratio of 1:2 was selected based on pseudoternary phase diagrams. The formulation prepared with an equal ratio of oil and S_mix exhibited the lowest globule size, highest zeta potential, and higher drug release and hence was selected for further evaluation.

Result: Optimized formulation (NF5) showed improved membrane permeability against pure drug suspension (2.30 times) and marketed suspension formulation (1.43 times). NF5 exhibited similar % cell viability and % cell toxicity in Caco-2 cell lines compared to the marketed suspension. The relative bioavailability of NFT-NE was enhanced by 1.10 and 1.17 times compared to the marketed and pure drug suspension, respectively.

Conclusion: Thus, it can be concluded that the optimized nanoemulsion formulation of NFT exhibited improved membrane permeability, comparable cell viability, and increased relative bioavailability. These findings suggest the potential of the nanoemulsion approach as a strategy to overcome the variability of oral absorption and GI intolerance of NFT.

For the last two decades, carbon dots, a revolutionary type of carbon nanomaterial with less than 10 nm diameter, have attracted considerable research interest. CDs exhibit various physicochemical properties and favorable characteristics, including excellent water solubility, unique optical properties, low cost, eco-friendliness, an abundance of reactive surface groups, and high stability. As a result, the synthesis of CDs and their applications in pharmaceutical and related disciplines have received increasing interest. Since CDs are biocompatible and biodegradable with low toxicity, they are a promising healthcare tool. CDs are extensively employed for numerous applications to date, including theranostics, bioimaging, drug delivery, biosensing, gene delivery, cancer therapy, electrochemical biosensing, and inflammatory treatment. This comprehensive review aims to explore various synthesis methods of carbon dots, including top-down and bottom-up approaches, as well as highlight the characterization techniques employed to assess their physicochemical and biological properties. Additionally, the review delves into carbon dots' pharmaceutical and biomedical applications, showcasing their potential in drug delivery, bioimaging, diagnostics, and therapeutics.