Safety

Safety considerations for our project and guidelines followed.

Wet Lab Safety


The development of PARSE entailed following rigorous safety procedures. The team worked in a level I biosafety lab. Lab coats and gloves were worn as standard. Eye protection was used as needed, where a risk was identified. Members of the team underwent extensive training before commencing wet-lab experiments, and had easy access to the Perak team (including first aiders), experienced advisors, and PIs in case of any safety concerns. All laboratory waste was disposed of in line with University guidelines, with specific training on this aspect completed prior to lab work began.

List of trainings completed:

  • Fire safety awareness
  • Safe use of step ladders and step stools
  • Waste disposal training
  • COSHH awareness
  • Autoclave training

PARSE's Safety


To make the project safer, all wet-lab experiments were conceptualised only with non-pathogenic strains of E. coli (DH5-alpha and Lemo BL21) as chassis organisms, which are both Risk Group 1 organisms. Additionally, all the parts belong to the White List other than the growth slower genes, which iGEM check-in forms have been submitted for. None of them are inherently hazardous to humans, animals or plants.

Chemical Safety


PPE was strictly followed when handling hazardous substances such as Virkon, Rubidium Chloride (\(\text{RbCl}\)) and several antibiotics. Non-carcinogenic gel stains Midori Green and SYBR Safe were used instead of ethidium bromide, and highly flammable compounds were stored separately in a suitable cabinet.

Legal Obligations


PARSE followed national regulations outlined by the Genetically Modified Organisms (Contained Use) Regulations of 2014. The team also filled out Control of Substances Hazardous to Health (COSHH) assessments as a requirement for wet-lab experiments, which were then reviewed by the project's PI.

Dry Lab Safety


Careful considerations have been taken into account in order to minimise the risks involved with the design and manufacturing of the modular, multiplexed turbidostat reactor system. The team has ensured that the system is being built in accordance with the health and safety guidelines and standards set by the University of Sheffield. In particular, throughout the build process the team is making certain that manufacturing and electrical equipment are not used without proper training, and if required, only with the guidance or supervision of experienced University technicians.


In addition the team has completed safety training for all tools used during manufacturing as required by the University's iForge Makerspace (for further information see https://training.iforge.shef.ac.uk/). There are several risks involved in the manufacturing of the reactor system. The following risk assessment has been produced for such risks:


Hazard

What harm might occur and to whom?

Existing control measures

Risk Rating (with current controls)

L

S

RR

Soldering

Burns from soldering iron or solder leading to injury

- Limiting equipment access to experienced members

2

2

L

Soldering

Property damage / Fire

- Limiting equipment access to experienced members

- Removing all flammable material from workstation before soldering

1

2

L

Soldering

Breathing in / Coming into contact with harmful materials

- Requiring use of goggles when soldering

- Requiring use of face mask when soldering

2

3

M

3D Printing

Burns from the heat exerted by the printer

- Limiting equipment access to experienced members

- No direct contact with the printer during operation

1

1

L

3D Printing

Breathing in / Coming into contact with harmful materials

- Using enclosures for 3D printers and ventilation to capture chemical emissions

1

3

L

Assembly of Electrical Components

Electrocution 

- Supervision of experienced, trained personnel if required
- Limiting equipment access to experienced members

3

4

M

Assembly of Mechanical Components

Injury through the use of hand and power tools

- Supervision of experienced, trained personnel if required
- Limiting equipment access to experienced members
- Requiring use of goggles when using tools

3

4

M

Likelihood (L)

Guide Description

Severity (S)

Guide Description

5

Very likely / Imminent

5

Catastrophic

4

Probable

4

Major

3

Possible

3

Moderate

2

Unlikely

2

Minor

1

Rare

1

Very Minor

Severity (s)

Likelihood (L)

1

2

3

4

5

5

5

10

15

20

25

4

4

8

12

16

20

3

3

6

9

12

15

2

2

4

6

8

10

1

1

2

3

4

5

Risk Rating (RR)

Action

High Risk

Stop the task/activity until controls can be put into place to reduce the risk to an acceptable level

Medium Risk

Apply additional precautions

Low Risk

No further action