oSIST prEN ISO 80004-1:2021

Nanotechnologies - Vocabulary - Part 1: Core terms and definitions (ISO/DIS 80004-1:2021)

Nanotechnologien - Fachwörterverzeichnis - Teil 1: Kernbegriffe und Definitionen (ISO/DIS 80004-1:2021)

Dieser Teil der Normenreihe ISO 80004 führt Begriffe und deren Definitionen auf, die mit Kernbegriffen auf dem Gebiet der Nanotechnologie verbunden sind. Ziel ist die Erleichterung der Kommunikationen zwischen Organisationen und Einzelpersonen in der Industrie und denjenigen, die mit ihnen zusammenarbeiten.

Nanotechnologies - Vocabulaire - Partie 1: Termes “coeur” et définitions (ISO/DIS 80004-1:2021)

Nanotehnologije - Slovar - 1. del: Temeljni izrazi in definicije (ISO/DIS 80004-1:2021)

General Information

• Status: Not Published
• Public Enquiry End Date: 30-Nov-2021
• ICS: 01.040.07 - Natural and applied sciences (Vocabularies)
• ICS: 07.120 - Nanotechnologies
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 4020 - Public enquire (PE) (Adopted Project)
• Start Date: 22-Sep-2021
• Due Date: 09-Feb-2022
• Ref Project: prEN ISO 80004-1 - Nanotechnologies - Vocabulary - Part 1: Core terms and definitions (ISO/DIS 80004-1:2021)

RELATIONS

• Revised: SIST-TS CEN ISO/TS 80004-1:2016 - Nanotechnologies - Vocabulary - Part 1: Core terms (ISO/TS 80004-1:2015)
• Effective Date: 02-Dec-2020
• Revised: SIST-TS CEN ISO/TS 80004-11:2020 - Nanotechnologies - Vocabulary - Part 11: Nanolayer, nanocoating, nanofilm, and related terms (ISO/TS 80004-11:2017)
• Effective Date: 02-Dec-2020

Standards Content (sample)

SLOVENSKI STANDARD
oSIST prEN ISO 80004-1:2021
01-november-2021
Nanotehnologije - Slovar - 1. del: Temeljni izrazi in definicije (ISO/DIS 80004-
1:2021)

Nanotechnologies - Vocabulary - Part 1: Core terms and definitions (ISO/DIS 80004-

1:2021)
Nanotechnologien - Fachwörterverzeichnis - Teil 1: Kernbegriffe und Definitionen
(ISO/DIS 80004-1:2021)

Nanotechnologies - Vocabulaire - Partie 1: Termes “coeur” et définitions (ISO/DIS 80004-

1:2021)
Ta slovenski standard je istoveten z: prEN ISO 80004-1
ICS:
01.040.07 Naravoslovne in uporabne Natural and applied sciences
vede (Slovarji) (Vocabularies)
07.120 Nanotehnologije Nanotechnologies
oSIST prEN ISO 80004-1:2021 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN ISO 80004-1:2021
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oSIST prEN ISO 80004-1:2021
DRAFT INTERNATIONAL STANDARD
ISO/DIS 80004-1
ISO/TC 229 Secretariat: BSI
Voting begins on: Voting terminates on:
2021-09-14 2021-12-07
Nanotechnologies – Vocabulary —
Part 1:
Core terms and definitions
Nanotechnologies — Vocabulaire —
Partie 1: Termes "cœur" et définitions
ICS: 07.120; 01.040.07
THIS DOCUMENT IS A DRAFT CIRCULATED
This document is circulated as received from the committee secretariat.
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
ISO/CEN PARALLEL PROCESSING
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 80004-1:2021(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION. ISO 2021
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oSIST prEN ISO 80004-1:2021
ISO/DIS 80004-1:2021(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2021

All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may

be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting

on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address

below or ISO’s member body in the country of the requester.
ISO copyright office
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Phone: [phone]
Email: [e-mail]
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Published in Switzerland
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Contents Page

Foreword ........................................................................................................................................................................................................................................iv

Introduction ..................................................................................................................................................................................................................................v

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

3.1 Basic terms and definitions .......................................................................................................................................................... 1

3.2 Terms concerning particles and assemblies of particles .................................................................................... 3

3.3 Terms specific to nano-objects .................................................................................................................................................. 4

3.4 Terms used in the description of nanostructured material ............................................................................. 6

3.5 Terms describing categories of nanostructured material ................................................................................. 6

3.6 Terms describing coatings, layers, films, freestanding films and membranes................................. 6

3.7 Terms describing nanocoatings, nanolayers, nanofilms, and related terms ...................................... 7

Annex A (informative) Additional terms and definitions ............................................................................................................... 8

Annex B (informative) Terms and definitions from other ISO/TCs ...................................................................................10

Bibliography .............................................................................................................................................................................................................................15

Alphabetical index .............................................................................................................................................................................................................16

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Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards

bodies (ISO member bodies). The work of preparing International Standards is normally carried out

through ISO technical committees. Each member body interested in a subject for which a technical

committee has been established has the right to be represented on that committee. International

organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.

ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of

electrotechnical standardization.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of

any patent rights identified during the development of the document will be in the Introduction and/or

on the ISO list of patent declarations received (see www .iso .org/ patents).

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and

expressions related to conformity assessment, as well as information about ISO's adherence to the

World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www .iso .org/

iso/ foreword .html.

This document was prepared by Technical Committee ISO/TC 229 Nanotechnologies and Technical

Committee IEC/TC 113, Nanotechnology standardization for electrical and electronic products and

systems.

This edition cancels and replaces ISO/TS 80004-1:2015, ISO/TS 80004-2:2015, ISO/TS 80004-4:2011

and ISO/TS 80004-11:2017, which have been technically revised.
The main changes compared to the previous editions are as follows:

— ISO/TS 80004-1:2015, ISO/TS 80004-2:2015, ISO/TS 80004-4:2011 and ISO/TS 80004-11:2017

merged into one document;

— deliverable has been changed from Technical Specification (TS) to International Standard (IS)

— definition of nanostructure amended;
— term and definition for NOAA added.

Documents in the 80000 to 89999 range of reference numbers are developed by collaboration between

ISO and IEC.
A list of all parts in the ISO 80004 series can be found on the ISO website.

Any feedback or questions on this document should be directed to the user’s national standards body. A

complete listing of these bodies can be found at www .iso .org/ members .html.
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Introduction

By control of matter in the nanoscale (3.1.1), nanotechnology (3.1.3) brings together processes and

techniques that are used to research, design and manufacture materials, devices, and systems. It enables

management of characteristics such as material size, shape, morphology, chemical composition and

molecular configuration for the improvement, or development of, new process and product properties.

Applications of nanotechnologies are expected to impact virtually every aspect of life and enable

dramatic advances in communication, health, manufacturing, materials and knowledge-based

technologies. There is a need to provide industry and researchers with suitable tools to assist with the

development, application and communication of nanotechnologies.

A crucial objective is the harmonization of terminology and definitions, in order to promote common

understanding and consistent usage across communities where nanotechnologies are being developed

and used. In the context of the ISO 80004-series of standards, “terminology” refers to the following:

a) a structured or conceptual presentation of vocabulary employed in nanotechnologies,

b) assigned definitions for specific units of the language in this vocabulary.

This part of ISO 80004 presents terminology and definitions for core terms in this emerging vocabulary,

and serves as the foundation for a broader vocabulary constituted collectively by the ISO 80004-series

of standards.

As nanotechnologies continue to evolve, the terms and definitions to facilitate communications

have become increasingly specific and precise. For many communities, the meaning of terms such

as “nanoscale” (3.1.1), “nanomaterial” (3.1.4) and “nanotechnology” (3.1.3) are inferred by logical

application of the SI unit of scale. The prefix 'nano-' specifically means a measure of 10 units,

and the nature of this unit is determined by the word that follows. In the ISO/TS 80004 vocabulary

series, however, terms such as “nano-object” (3.1.5) and “nanoscale” (3.1.1) employ size and geometric

boundaries to express fundamental and measurable aspects of nanomaterials. In the case of the term

nanoscale, the definition acknowledges that the length range of nano-objects might fall outside the

precise boundaries normally associated with the concept of scale, by indicating that the upper and

lower boundaries are approximate.

The lower limit (approximately 1 nm) in the definition of nanoscale is introduced to avoid single and

small groups of atoms, as well as individual molecules, from being designated as nano-objects or

elements of nanostructures (3.1.6), which might be implied by the absence of a lower limit. It should

also be recognized that fullerene molecules and single layer planar structures (e.g. graphene) that have

dimensions below 1 nm are, in practice, considered to be nanomaterials because they are important

building blocks for nanotechnology.

Further, size-dependent biological effects, specifically particle-cell interactions, and environmental

interactions related to nanotechnology, involve structures below 1 nm and above 100 nm. In addition

to size, the complex interplay of parameters such as aspect ratio, core chemistry, agglomeration state,

physical state, surface properties and others will influence biological and environmental interactions

associated with nanostructured materials.

Terminology development is proceeding at an intensive pace and needs to be responsive to the needs

of stakeholders. As knowledge expands, a robust terminology will need to effectively convey not only

the size and shape-based metrics of nanomaterials but also the performance-based/properties-based

aspects of intentionally produced nano-objects and nanostructured materials (3.1.7) in their definitions.

It will be an on-going challenge to communicate complex concepts in definitions in a manner

that is meaningful and practical for stakeholders in research, commercial applications,

government and consumer communities. It is emphasized that the definition of “nanoscale” in the

ISO/TS 80004 vocabulary series is a general descriptor serving to facilitate communication concerning

nanotechnologies.
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The development of core terms and their definitions has benefited from discussion over time concerning

scientific, regulatory and consumer usage. The science is still emerging, as is the capacity to measure

and characterize nanomaterials, or more generally matter in the nanoscale. Care needs to be taken to

ensure the latest scientific information is incorporated into the terminology as it becomes available.

It is important to acknowledge that the associated terms and their definitions will likewise follow an

evolutionary path.

Many of the definitions in this part of ISO 80004 are determined to be in harmony with a framework and

hierarchical system of terminology for nanotechnologies. Furthermore, it is also important to recognize

that articles fabricated to contain nanomaterials are not necessarily nanomaterials themselves.

Nano-objects (for example nanoparticles, nanofibres, and nanoplates), often occur in (large) groups,

rather than as isolated or distinct entities. For reasons of surface energy, such coexisting nano-objects

are likely to interact. In the description of these interactions, the following terms are often used.

The terms are not restricted with respect to physical size and shape. These terms are included for

completeness and importance at the nanoscale

Figure 1 illustrates the relationships between “nanomaterial” (3.1.4), “nano-object” (3.1.5) and

“nanostructured material” (3.1.7). However, this hierarchy is not intended to exclude the possibility for

a nano-object to have internal or surface nanostructure. This figure should therefore be considered as

schematic or idealized.
Figure 1 — Nanomaterial framework

A number of other parameters in addition to size and shape are also intrinsic to the function and

phenomena exhibited by nano-objects. These parameters include composition, morphology, crystalline

structure, and surface features, which can all have a major influence on the key nanoscale phenomena

exhibited by nano-objects. Such phenomena include magnetic, optical, catalytic, electronic, and other

properties.
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a) nanoparticle b) nanofibre c) nanoplate
(3 ext. dimensions (2 ext. dimensions (1 ext. dimensions
in the nanoscale) in the nanoscale) in the nanoscale)
Figure 2 — Schematic diagrams showing some shapes for nano-objects

There is a hierarchical relationship between many of the different terms in this part of ISO 80004.

Elements of this are shown in Figure 3 to illustrate some of the relationships that exist.

Figure 3 — Fragment of hierarchy of terms related to nano-objects

Nanostructured materials are characterized by internal structures or surface structures at the

nanoscale. Nano-objects (material with one, two or three external dimensions in the nanoscale) can be

nanostructured.

A material should not be classified as nanostructured based solely on its crystalline properties (three-

dimensional arrangements of atoms or molecules forming a crystallite, short range order of atoms

in amorphous or quasi-amorphous phases, grain boundaries, intragranular interfaces, dislocations,

etc.). In contrast, materials with a grain size distribution having a significant fraction of grains in the

nanoscale (nanocrystalline), voids and pores in the nanoscale, or precipitations in the nanoscale (i.e.

nano-objects in a solid matrix) are sufficient features for materials to be classified as “nanostructured”.

Similarly, almost all materials always have surfaces with morphological and chemical heterogeneities

in the nanoscale. Only surfaces that have been intentionally modified or textured to have morphological

or chemical heterogeneities in the nanoscale identify materials as “nanostructured”.

Five categories of nanostructured materials are covered in this document (see Figure 4):

1) powder comprising nanostructured materials
2) nanocomposite;
3) solid nanofoam;
4) nanoporous material;
5) fluid nanodispersion.
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For some of these five categories, a number of subcategory terms are also defined. The category and

subcategory terms are not comprehensive; additional categories and subcategories will be added in

later revisions of this document.
Figure 4 — Categories of nanostructured materials defined in this document

The terms coating, layer, film and others that are related can be grouped by distinguishing between

coatings, layers and films having a thickness in the nanoscale (i.e. external dimension in the nanoscale)

and those having internal structures in the nanoscale (e.g. nanostructured coatings, nanocomposite

coatings, dispersion coatings with dispersed nano-objects, …). Following the hierarchy established in

this document which describes nanomaterial by the two categories ’nano-objects’ and ’nanostructured

material’ the terms nanolayer, nanocoating, and nanofilm are assigned to ’nanoobjects’ and the terms

nanostructured layers, coatings, and films are assigned to nanostructured material (see Figure 5). It is

noted that nano-objects (including nanolayers, nanocoatings and nanofilms), can be elements or parts

of a larger nanostructured material.

Figure 5 — Assigning the terms nanolayer, nanocoating, nanofilm to “nano-objects” and the

terms nanostructured layers, coatings, and films to "nanostructured material" following the

hierarchy of nanomaterial terms
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Nanotechnologies – Vocabulary —
Part 1:
Core terms and definitions
1 Scope

This part of ISO 80004 series lists terms and definitions related to core terms in the field of

nanotechnologies. It is intended to facilitate communications between organizations and individuals in

industry and those who interact with them.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1 Basic terms and definitions
3.1.1
nanoscale
length range approximately from 1 nm to 100 nm
3.1.2
nanoscience

study, discovery and understanding of matter where size- and structure-dependent properties and

phenomena manifest, predominantly in the nanoscale (3.1.1), distinct from those associated with

individual atoms or molecules, or extrapolation from larger sizes of the same material

3.1.3
nanotechnology

application of scientific knowledge to manipulate and control matter predominantly in the nanoscale

(3.1.1) to make use of size- and structure-dependent properties and phenomena distinct from those

associated with individual atoms or molecules, or extrapolation from larger sizes of the same material

Note 1 to entry: Manipulation and control includes material synthesis.
3.1.4
nanomaterial

material with any external dimension in the nanoscale (3.1.1) or having internal structure or surface

structure in the nanoscale
Note 1 to entry: See also definitions 3.1.8 to 3.1.10.
Note 2 to entry: The nanoform of a material is a nanomaterial.
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3.1.5
nano-object

discrete piece of material with one, two or three external dimensions in the nanoscale (3.1.1)

3.1.6
nanostructure
surface or internal feature with one or more dimensions in the nanoscale (3.1.1)

Note 1 to entry: A feature includes but is not limited to nano-objects, structures, morphologies or other

identifiable areas of nanoscale dimensions

Note 2 to entry: for example, the nanostructure can be a nanopore or a solid feature on an object

3.1.7
nanostructured material
material having internal nanostructure (3.1.6) or surface nanostructure

Note 1 to entry: This definition does not exclude the possibility for a nano-object (3.1.5) to have internal structure

or surface structure. If external dimension(s) are in the nanoscale (3.1.1), the term nano-object is recommended.

3.1.8
engineered nanomaterial
nanomaterial (3.1.4) designed for specific purpose or function
3.1.9
manufactured nanomaterial

nanomaterial (3.1.4) intentionally produced to have selected properties or composition

3.1.10
incidental nanomaterial
nanomaterial (3.1.4) generated as an unintentional by-product of a process

Note 1 to entry: The process includes manufacturing, bio-technological or other processes, including natural

processes.

Note 2 to entry: Used as a synonym for “ultrafine particle” in ISO/TR 27628:2007.

3.1.11
nanomanufacturing
intentional synthesis, generation or control of nanomaterials (3.1.4)
3.1.12
nanomanufacturing process

ensemble of activities to intentionally synthesize, generate or control nanomaterials (3.1.4)

3.1.13
nanoscale phenomenon

effect attributable to the presence of nano-objects (3.1.5) or nanoscale (3.1.1) region

3.1.14
nanoscale property
characteristic of a nano-object (3.1.5) or nanoscale (3.1.1) region
3.1.15
nano-enabled
exhibiting function or performance only possible with nanotechnology (3.1.3)
3.1.16
nano-enhanced

exhibiting function or performance intensified or improved by nanotechnology (3.1.3)

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3.1.17
nanocoating
coating (3.6.6) with thickness in the nanoscale (3.1.1)
3.1.18
nanocomposite

solid comprising a mixture of two or more phase-separated materials, one or more being nanophase

(3.4.2)

Note 1 to entry: Gaseous nanophases are excluded [they are covered by nanoporous material (3.5.1)].

Note 2 to entry: Materials with nanoscale (3.1.1) phases formed by precipitation alone are not considered to be

nanocomposite materials.
3.1.19
nanodispersion

material in which nano-objects (3.1.5) or a nanophase (3.4.2) are dispersed in a continuous phase of a

different composition
3.1.19.1
nano-emulsion
fluid nanodispersion (A.2) with at least one liquid nanophase (3.4.2)
3.1.19.2
nanosuspension
fluid nanodispersion (3.1.19) where the dispersed phase is a solid

Note 1 to entry: The use of the term “nanosuspension” carries no implication regarding thermodynamic stability.

3.2 Terms concerning particles and assemblies of particles
3.2.1
particle
minute piece of matter with defined physical boundaries
Note 1 to entry: A physical boundary can also be described as an interface.

Note 2 to entry: This general particle definition applies to nano-objects (3.1.5).

[SOURCE: ISO 26824:2013, 1.1 modified – Note 2 deleted]
3.2.2
primary particle

original source particle (3.2.1) of agglomerates (3.2.4) or aggregates (3.2.5) or mixtures of the two

Note 1 to entry: Constituent particles (3.2.3) of agglomerates or aggregates at a certain actual state may be

primary particles, but often the constituents are aggregates.

Note 2 to entry: Agglomerates and aggregates are also termed secondary particles.

[SOURCE: ISO 26824:2013, 1.4]
3.2.3
constituent particle
identifiable, integral component of a larger particle (3.2.1)

Note 1 to entry: The constituent particle structures can be primary particles (3.2.2) or secondary particles.

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3.2.4
agglomerate

collection of weakly or medium strongly bound particles (3.2.1) where the resulting external surface

area is similar to the sum of the surface areas of the individual components

Note 1 to entry: The forces holding an agglomerate together are weak forces, for example van der Waals forces or

simple physical entanglement.

Note 2 to entry: Agglomerates are also termed secondary particles and the original source particles are termed

primary particles (3.2.2).
[SOURCE: ISO 26824:2013, 1.2]
3.2.5
aggregate

particle (3.2.1) comprising strongly bonded or fused particles where the resulting external surface area

is significantly smaller than the sum of surface areas of the individual components

Note 1 to entry: The forces holding an aggregate together are strong forces, for example covalent or ionic bonds,

or those resulting from sintering or complex physical entanglement.

Note 2 to entry: Aggregates are also termed secondary particles and the original source particles are termed

primary particles.
[SOURCE: ISO 26824:2013, 1.3, modified — Note 1 adapted.]
3.2.6
NOAA
nano-objects (3.1.5), and their agglomerates (3.2.4) and aggregates (3.2.5)

Note 1 to entry: NOAAs include structures with one, two or three external dimensions in the nanoscale (3.1.1),

which might be spheres, fibres, tubes and others as primary structures. NOAAs can consist of individual primary

structures in the nanoscale (3.1.1) and aggregated or agglomerated structures, including those with sizes larger

than 100 nm.
3.3 Terms specific to nano-objects
3.3.1
engineered nano-object
nano-object (3.1.5) designed for specific purpose or function
3.3.2
manufactured nano-object

nano-object (3.1.5) intentionally produced to have selected properties or composition

3.3.3
incidental nano-object
nano-object (3.1.5) generated as an unintentional by-product of a process

Note 1 to entry: The process includes manufacturing, bio-technological or other processes, including natural

processes.
3.3.4
nanoparticle
nano-object (3.1.5) with all external dimensions in the nanoscale (3.1.1)

Note 1 to entry: If the dimensions differ significantly (typically by more than 3 times), terms such as nanofibre

(3.3.5) or nanoplate (3.3.6) may be preferred to the term nanoparticle.
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3.3.5
nanofibre

nano-object (3.1.5) with two external dimensions in the nanoscale (3.1.1) and the third dimension

significantly larger

Note 1 to entry: The largest external dimension is not necessarily in the nanoscale.

3.3.6
nanoplate

nano-object (3.1.5) with one external dimension in the nanoscale (3.1.1) and the other two external

dimensions significantly larger

Note 1 to entry: The larger external dimensions are not necessarily in the nanoscale.

3.3.6.1
nanoflake
nanoplate (3.3.6) with limited lateral dimensions
3.3.6.2
nanofoil
nanosheet
nanoplate (3.3.6) with extended lateral dimensions

Note 1 to entry: Nanofoil and nanosheet are used synonymously in specific industries.

Note 2 to entry: Nanofoil and nanosheet extend further with respect to their length and width compared to

nanoplate (3.3.6) or nanoflake (3.3.6.1).
3.3.7
nanorod
solid nanofibre (3.3.5)
3.3.8
nanotube
hollow nanofibre (3.3.5)
3.3.9
nanowire
electrically conducting or semi-conducting nanofibre (3.3.5)
3.3.10
nanoribbon
nanotape

nanoplate (3.3.6) with the two larger dimensions significantly different from each other

[SOURCE: ISO/TS 80004-3:2010, 2.10, modified.]
3.3.11
nanosphere
spherical nano-object (3.1.5)
3.3.12
nano-onion
spherical nanoparticle (3.3.4) with concentric multiple shell structure
[SOURCE: ISO/TS 80004-3:2010, 2.8]
3.3.13
core-shell nanoparticle
nanoparticle (3.3.4) consisting of a core and shell(s)

Note 1 to entry: A related term nanostructured core-shell particle is defined in A.13.

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Note 2 to entry: The largest external dimension/length (core diameter plus shell thickness) shall be in the

nanoscale (3.1.1). For spherical core-shell nanoparticle, this length is the outer diameter.

3.3.14
nanocone
cone-shaped nanofibre (3.3.5) or nanoparticle (3.3.4)
[SOURCE: ISO/TS 80004-3:2010, 2.9]
3.3.15
nanocrystal
nano-object (3.1.5) with a crystalline structure
3.4 Terms used in the description of nanostructured material
3.4.1
nanostructured
having internal or surface structure in the nanoscale (3.1.1)
Note 1 to entry: I
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