The drastically increasing issues of the disease scenario currently are with different types of diabetes all over the world. It has been reported, approximately 592 million are suffering from the disease throughout the world. It affects differently in different patients with the disease. There have been reports that it is affected differently and also has different side effects. It is also been reported that diabetes mellitus leads to the cause of diabetic retinopathy (DR) and also diabetic macular edema. It is considered as one of the most common causes which is linked to DR. DR has been considered as one of the most important causes for the loss of vision or impaired vision. The drugs show different types of incompatibility such as toxicity, solubility issues, aggregation, and chemical degradation these can be improved by applying several methods. DR is classified according to “Airlie House” into different categories and based on different strategies and consideration. It was found that DR is the main cause for vision loss and also there no much strategies for development of new treatment. The treatment involved is laser photocoagulation and vitrectomy, among these the effective treatment, was found to be laser photocoagulation. This is mainly characterized as proliferative and non-proliferative DR. Different therapeutic agents have been taken for the study these includes vascular endothelial growth factor, renin-angiotensin system inhibitors and nonsteroidal anti-inflammatory drugs, they are certainly different interventions for the treatment, they are nanotechnology and liposome. Nanotechnology applied is the most effective and also acceptable way of treatment.
By the modification of solid-lipid nanoparticles (SLNs), the nano-structured lipid carriers (NLCs) were obtained by the modification of nanostructured that hold the qualities of the SLN, increases the stability of the drug, and prevents drug leakage. The limitations of the drugs that are delivered in the body using different routes are poor solvency, first pass metabolism, and poor bioavailability hence to overcome these limitations NLCs were prepared. Oral, topical, transdermal, ocular, and parenteral are the different routes through which nanobased systems are delivered. Spatially incompatible liquid lipids and solid lipids are blended and NLCs were prepared. It stays solid at room temperature. The advantages of for drug therapy over conventional carriers NLCs are increased solubility, improved bioavailability. This review describes about the NLC, its advantages and disadvantages, types, NLC techniques, mode of action, and applications of NLC. Imperfect, amorphous, and multiple types are the main three types of NLCs. Lipids, liquid lipids, solid lipids, Emulsifiers, ultraviolet (UV) blockers, and aqueous medium were the excipients used. Microemulsion technique, microemulsion based SLN/NLC preparations, solvent diffusion method, high-pressure homogenization (HPH), hot and cold homogenization techniques, and melt emulsification method are the techniques used for the preparation of NLC. The applications of NLCs are for ocular, brain targeting, topical, cancer therapy, cosmetics, and analgesia.
In recent decades, the rise in the investigation of new drugs had made health-care system expensive compared to conventional drug delivery systems and techniques. The present drug delivery systems have become highly productive and are growing fast. Majority of the anticancer agent has low water solubility resulting in multistep synthetic routes that require higher selectivity and specificity that can cause difficulty in the development of the formulation. Nanosponges (NSs) are branched cyclodextrin (CD) polymeric systems which have proven to be a boon in the pharmaceutical and biomedical fields. Different kinds of NSs based on different types of CDs and crosslinkers are used for developing of new drug formulations from the past few years for various applications in health care. Nanotechnology has overcome the issues regarding the drug solubility, stability, and other parameters and has attained success in achieving of sustained release, increased activity, improved permeability, delivery of nucleoprotein, the stimuli-responsive release of the drug, and improved drug bioavailability. There is a huge eruption of research on NSs for cancer treatment. Multiple anticancer moieties have been developed, taking into account the pharmacological and physicochemical perspective of the drug to develop a NS formulation. Our target in this review is to catch an efficient and far-reaching NSs for malignancy cancer treatment announced until now. This survey will give a perfect stage for providing details for researchers taking a shot at using new polymers for improving the treatment of the disease using nanotechnology. The present article provides details regarding antineoplastic molecules and provides ideas on CD-based NSs specifically using curcumin, tamoxifen, resveratrol, quercetin, oxygen-NSs, temozolomide, doxorubicin, and 5-fluorouracil (5-FU), and erlotinib (ETB) glutathione.
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