Dear Sahas Bansal,

Nanoparticles are particles between 1 and 100 nanometers in size, but Nanomaterials have refers to materials having unique properties derived from features present in them whose dimensions are on the nanoscale (less than 100 nm). The term can also refer to the materials more broadly encompassing nanotechnology, such as: Nanofiber, Nanosheet, Nanorod …

Good luck

http://arxiv.org/ftp/arxiv/papers/0801/0801.3280.pdf

Dear Sahas Bansal,

A nano-particle is any type of particle with a size in the order of nanometres in any direction.

A nano-material can be any material that at least in one direction has a length in the order of nanometres, for example a ultra thin film of 10 nm thickness. Inside the category of nano-materials is any material limited in 1D (film), 2D (nano-wires), or 3D (nano-particules).

The 'nano' size in material is flexible and in general anything between 1 and 50 nm would easily be accepted as a nano-material.

Mr. Oliveira is correct. "Nano-particle" is a particle having the size in nano range, that is, of the order of 10^-9 m. Materials having a collection of large number of nano-particles in them are known as nano materials. 

Also any particle size from 1 nm to 100 nm is considered to be a nano-particle (and I have proof of that in my published papers).

Dear Sahas Bansal,

Nanoparticles are particles between 1 and 100 nanometers in size, but Nanomaterials have refers to materials having unique properties derived from features present in them whose dimensions are on the nanoscale (less than 100 nm). The term can also refer to the materials more broadly encompassing nanotechnology, such as: Nanofiber, Nanosheet, Nanorod …

Good luck

Dear Sahas Bansal,

Nanoparticles are particles between 1 and 100 nanometers in size, but Nanomaterials have refers to materials having unique properties derived from features present in them whose dimensions are on the nanoscale (less than 100 nm). The term can also refer to the materials more broadly encompassing nanotechnology, such as: Nanofiber, Nanosheet, Nanorod …

Good luck

http://arxiv.org/ftp/arxiv/papers/0801/0801.3280.pdf

Dear Sahas Bansal,

Nanoparticles are particles between 1 and 100 nanometers in size, but Nanomaterials have refers to materials having unique properties derived from features present in them whose dimensions are on the nanoscale (less than 100 nm). The term can also refer to the materials more broadly encompassing nanotechnology, such as: Nanofiber, Nanosheet, Nanorod …

Good luck

http://arxiv.org/ftp/arxiv/papers/0801/0801.3280.pdf

Sometimes nanomaterial is as well used for nanostructured materials. In these materials the unique properties are related to the structure (surface structure as well as whole materials structure) with a dimension in the nano-scale. 

Nanoparticles are particles between 1 to 100 nanometers in size, however, nano materials are a materials which constituents of nanoscale dimensions (at least one dimension)

I don't understand actually the difference between nanoparticle and nanostructures and also between nanostructures and nanomaterials. If you have a clear idea, please mention.

A nanoparticle is a cluster of atoms or molecules that has dimension in the range of 1–100 nanometres.

A nano-material can be any material that at least in one direction has a length in the order of nanometres. Eg.: An ultra-thin film of 10 nm thickness can be placed in the category of nano-materials.

A Nanostructure is of intermediate size between a nano dimension and a micro dimension, that can be developed as various forms. As the word says, it is basically “structured” using soft/hard templates to form micro-level structures. Eg.: Nano-flowers, Nano sphere, nano falkes etc.

Nanomaterial- any material with at least one dimension in nanoscale.

Nanoparticle- all dimensions should be in nanoscale, most preferably less than 100 nanometers range.

nanoparticles are the subset of nanomaterials, where nanomaterial is the universal set.

I quite agree with Dr. Awanish Kumar

Nanomaterialany material with at least one dimension in nanoscale.

Nanoparticleall dimensions should be in nanoscale, most preferably less than 100 nanometers range.

Please see the following link

https://www.quora.com/What-is-the-difference-between-nanomaterials-and-nanoparticles-What-is-a-carbon-nanotube-considered-as

Best Regards

Nanoparticles

Nanoparticles are particles with at least one dimension smaller than 1 micron and potentially as small as atomic and molecular length scales (~0.2 nm). Nanoparticles can be biological, such as those used for gene or drug delivery applications in FDA/clinical applications, or non-biological such as the titanium and zinc nanoparticles in some sunblocks. They can be made of metals, proteins, genes, ceramics, or any range of materials that are normally found in the world. However, they are constrained to being in a particle format within certain size ranges as opposed to being a more solid matrix with some form of nanostructure (nanomaterials).

Carbon nanotubes *can* be used to make nanoparticles. Nanoparticles can be spherical, oblong, tube-like, or any shape you can imagine. However, carbon nanotubes are very, very thin. Depending on whether they are single-, double- or multi-walled, their thickness can range from 2 - 9.5nm (Single, Double, MultiWall Carbon Nanotube Properties & Applications). An aggregate of carbon nanotubes or a 9.5nm x 50nm carbon nanotube would be considered a nanoparticle.

Nanomaterials

Nanomaterials are materials that have structural components smaller than 1 micrometer in at least one dimension.

Classification of nanomaterials is based on the number of dimensions, which are not confined to the nanoscale range (

I agree with Dr. Awanish Kumar