# silicone gels

> organosiloxane gels formed from polymers of silicone oxide with polydimethylsiloxane sidechains

**Wikidata**: [Q66759470](https://www.wikidata.org/wiki/Q66759470)  
**Source**: https://4ort.xyz/entity/silicone-gels

## Summary
Silicone gels are organosiloxane gels formed from polymers of silicone oxide with polydimethylsiloxane sidechains, classified as a type of silicone and gel. They exhibit solid jelly-like properties ranging from soft to tough, with a substantially dilute cross-linked system that exhibits no flow in steady-state conditions.

## Key Facts
- Silicone gels are a subclass of both silicone and gel.
- UMLS CUI identifier: C0599034 (as of 2023-05-25).
- Medical Subject Heading (MESH) descriptor ID: D020034 (qualified as "Silicone Gels").
- MESH tree codes include D02.756.650.700.755, D05.750.900.850.905, D25.720.900.850.905, and J01.637.051.720.900.850.905, all qualified with "silicone".
- Nl_cr_aut_id: ph764816 (qualified as "silikonové gely").
- Aliases: silicone gel, シリコーンゲル.
- Parent gel class defined as a solid jelly-like material with properties ranging from soft and weak to hard and tough.

## FAQs
### Q: What are silicone gels made of?  
A: Silicone gels are organosiloxane gels formed from polymers of silicone oxide with polydimethylsiloxane sidechains.

### Q: How are silicone gels classified?  
A: Silicone gels are a subclass of both silicone and gel, with documented identifiers in medical and scientific classifications like MESH (D020034) and UMLS (C0599034).

### Q: What properties define silicone gels?  
A: As a type of gel, silicone gels are solid, jelly-like materials that can range from soft and weak to hard and tough, exhibiting no flow in steady-state due to their dilute cross-linked structure.

### Q: What alternative names exist for silicone gels?  
A: Silicone gels are also known as silicone gel and シリコーンゲル.

### Q: How are silicone gels represented in medical coding systems?  
A: They are assigned UMLS CUI C0599034 and MESH descriptor ID D020034, with associated tree codes for silicone.

## Why It Matters
Silicone gels serve as critical materials in biomedical and industrial applications due to their unique properties as organosiloxane-based gels. Their classification under both silicone and gel facilitates standardized scientific referencing and medical coding, enabling precise research and communication. The absence of flow in steady-state and their adaptable mechanical properties make them valuable for specialized formulations where consistent structure and biocompatibility are required. However, their significance beyond material classification is not detailed in the provided source.

## Notable For
- Composition: Organosiloxane polymers with polydimethylsiloxane sidechains, distinct from silicone fluids or elastomers.
- Classification: Explicitly subclassified under both silicone and gel, unlike hybrid polymers with ambiguous categorizations.
- Medical Coding: Unique MESH descriptor ID (D020034) and UMLS CUI (C0599034) for precise biomedical indexing.
- Structural Definition: Defined by a "substantially dilute cross-linked system" with no steady-state flow, a specific technical distinction among gel types.

## Body
### Composition and Structure
- Silicone gels are organosiloxane gels formed from polymers of silicone oxide with polydimethylsiloxane sidechains.
- Their structure is characterized by a substantially dilute cross-linked system, exhibiting no flow when in steady-state conditions.

### Classification and Identifiers
- **Subclass of**: silicone, gel.
- **Aliases**: silicone gel, シリコーンゲル.
- **UMLS CUI**: C0599034 (valid as of 2023-05-25).
- **MESH Descriptor ID**: D020034 (qualified as "Silicone Gels").
- **MESH Tree Codes**:
  - D02.756.650.700.755 (qualifier: silicone)
  - D05.750.900.850.905 (qualifier: silicone)
  - D25.720.900.850.905 (qualifier: silicone)
  - J01.637.051.720.900.850.905 (qualifier: silicone)
- **Nl_cr_aut_id**: ph764816 (qualified as "silikonové gely").

### Gel Properties
- As a subclass of gel, silicone gels are solid jelly-like materials.
- Properties range from soft and weak to hard and tough.
- Gels are defined as substantially dilute cross-linked systems with no flow in steady-state conditions.

## References

1. UMLS 2023