What are Nanoparticles used for and why?


A Nanoparticle is a small particle that lies between a range of 1 to 100 nanometres in size. It can not be detected by the human eye. Nanoparticles can indicate the different chemical and physical properties of their huge material equal parts. Nanoparticles of material usually have very unique properties from that of their normal scale. They are crucial components in a vast range variety of applications, including medicine.

Let’s read what is nanoparticles and the types of nanoparticles in the medical industry. They are effective for drug delivery, and delivery of medicine to the body. Nanoparticles can accurately find the diseased cells and take the medicine to them. Moreover, nanotechnological methods are stimulating the development of inventory tools for identifying diseases such as atherosclerosis and cancer at an early stage. 

Uses of Nonoparticles:

1. Multifunctional Nanoparticles – For Cancer Therapy:

The use of nanoparticles in cancer therapy is fascinating for various reasons. Biodegradable chitosan nano properties abbreviating quantum dots were prepared with appropriate surface modification to disable both tumor targeting and chemokine on their surfaces. The interconnection between immune cells and tumor cells was imagined using an optical microscope. The utilization of quantum dots in the treatment of cancer is a great progress in this field. Quantum dots outshine when exposed to UV light.  

When injected they exude into the cancer tumor and the surgeon can see the luminous tumor. Nanotechnology can be very beneficial for renewing the injured nerves. The swift development of this new science and the opportunities for its application illustrates that nanotechnology will become one of the ruling technologies of this century. Also, nanoparticles in mRNA have shown therapeutic potential in various applications including vaccines and cancer immunotherapies. 


2. Biomerging with Nanoparticles:

Various molecular imaging techniques, like optical imaging(OI), ultrasound imaging(USI), magnetic resonance imaging (MRI), and others were used for imaging of in vitro and in vivo biological specimens. 

The current development of magnetic and luminescent nanoparticles gives a boost to bioimaging technologies. Two different kind of nanoparticles have been widely used for imaging: magnetic nanoparticles for MRI and luminescent nanoprobes for OI. Also, there are two-mode nanoparticles for combined imaging by OI and MRI

3. Nanoparticles as Drug Delivery Systems

Carrying therapeutic compounds to the target site is a vital issue in the treatment of various diseases. A Conventional application of drugs is identified by limited effectiveness, low biodistribution, and the scarcity of selectivity. These drawbacks and restrictions can be overcome by controlling drug delivery. 

In controlled drug delivery systems the drug is transferred to the place of action, thus, its effect on crucial tissues and undesirable side effects can be degraded. DDS safeguards the drug from instant degradation and refines drug absorption in target tissues. Thus, lower doses of the drug are needed. This modern form of therapy is usually important when there is a dissimilarity between a dose of the drug and its therapeutic outcomes. 

4. Nanoparticles for Wound Dressing 

Multiple nanoparticle formulations have been analyzed for utilization in wound healing. Therefore so far silver-based materials have given the most surprising outputs and are the only nanoparticle-based dressings to get FDA approval for the cure of accurate wounds. 

Silver nanoparticles convey wide antimicrobial characteristics, including activity against methicillin-resistant. 

Types of Nanoparticles in Medicines:

Let’s discuss the most common types of nanoparticles in medicines: 

1. Lipid Nanoparticles

Liposomes are the most used lipid nanoparticles. A liposome is a circular structure composed of phospholipids and other liquid substances. Liposomes can arrange both hydrophobic and hydrophilic drugs. While hydrophobic agents can be loaded in the lipid bilayer, hydrophilic compounds can load the inner aqueous region. Proteins, peptides, antibodies, and polymers are the best examples of ligands that can be added to liposomes to increase their surface. Area development enables liposome-based nanomedicines to be delivered precisely. 

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2. Polymeric Nanoparticles

Polymeric nanomedicines are made up of biocompatible/biodegradable polymers and therapeutic agents, that directly merge with the polymer or are confined in the polymeric core. 

These are the natural polymers like starch, dextran, and chitosan. Tiny molecules, proteins, and antibodies can be used as therapeutic agents.  Moreover, the polymer can also be a therapeutic compound. The benefits of drugs combined with or encapsulated into polymers include superior controlled release and enhanced bioavailability. 

3. Albumin-based Nanoparticles

The serum protein albumin has evolved as a strong platform for the upcoming generations of nanomedicines. Drugs on being coated with albumin, become secure and can circulate for a longer time in the blood. This is because albumin coating increases the invisibility of the drug for the immune system. Consequently, it is not eradicated quickly. Additionally, the albumin coating also permits targeted drug delivery in multiple types of cancer. Albumin-based nanoparticles can also be used for diagnosis purposes. 

4. Inorganic Nanoparticles

Several inorganic materials like silica and metal can be nanosized. Among all of them, gold, silver, and iron nanoparticles are largely investigated to make new nanomedicines. Such as nanosized silver and gold are used to strengthen the tissue for regeneration and wound healing. Gold nanoparticles have different optical characteristics that make them useful for diagnostic purposes and imaging. They can be also used for hyperthermia cancer therapy. 


Nanoparticles present an interesting platform for a diverse bunch of biological applications. The core characteristics and surface of these systems can be fixed for an individual and several mode applications, including therapeutic delivery, biomolecular recognition, bioimaging, and biosensing. We hope it is clear to you what is nanoparticles and their uses. For more such interesting articles visit our other articles.