About

Evidence-backed atlas for DIY biofabrication.

The public site is generated from curated paper records, publication metadata, and linked open-source resources.

Current build

128 paper records from unified_papers.csv
36 named tools
54 derived assets
26 skill records
106 records with implementation scoring
Pagefind full-site search in production builds

Discovery paths

Tools — named open-source systems
Skills — barrier levels and technical tags
Assets — CAD, BOM, protocols, firmware
Collections — curated viewpoint lenses

Machine-readable use

JSON endpoints under /api/*
Ontology schema
Knowledge graph with explicit relation types

Original scoring matrix

Criteria used to score source evidence

The rubric is generated from lists/curated/criteria_rubric.csv. Each criterion has separate anchors for bioprinting, liquid handling, and microfabrication papers; score 1 indicates the least accessible or least capable case, and score 5 indicates the strongest case for the stated criterion.

Technique

Bioprinting

9 criteria

Score anchors for all implementation criteria under the Bioprinting technique.

Criterion	Evidence to extract	1	2	3	4	5
ResolutionHow small or precise can this technology achieve?	Feature size	>1000 um	500-1000 um	100-500 um	10-100 um	<10 um
ScalabilityThroughputHow scalable is the method from low device production to high-throughput biofabrication?	Print speed, build volume, number of printheads, level of human involvement, parallelization, bioink capacity, and reproducibility	Single-construct printing with slow operation; extensive manual intervention; limited reproducibility	Small-batch production with manual loading or setup and limited automation	Moderate throughput with repeatable fabrication of multiple constructs and some automation or parallelization	High throughput with multiple constructs per run; automated workflows; reduced user intervention	Scalable platform with continuous operation, multi-printhead capability, and automated sample handling
Skill ComplexityHow broad or specialized are the skills needed to build and use the technology?	Cell culture, 3D modeling, microscopy or imaging, CAD, materials science, and bioink formulation	Designing a new bioprinting platform; developing novel hardware or control strategies; engineering new bioink systems	Requires advanced skills, including electronics, software, custom printing workflows, bioink design, and biological validation of printed constructs	Requires skills in multiple technical areas, including mechanical assembly, calibration, bioink preparation, and optimization of printing parameters	Requires basic mechanical and laboratory skills, such as printer operation, material preparation, and routine parameter adjustment	Requires basic laboratory skills only; established protocols with minimal technical troubleshooting
EquipmentConsumableFacility Requirement AccessibilityHow accessible are the equipment, consumables, technology, and facilities required to build and use this tool?	3D printer access, consumables such as bioinks, and sterile enclosure requirements	Requires highly specialized infrastructure or commercial-grade equipment	Requires advanced equipment or dedicated fabrication facilities	Requires specialized laboratory equipment or consumables that are available in many research laboratories	Requires commercially available equipment and consumables with basic laboratory access; fabrication can be performed using common tools or desktop equipment	Requires only readily available components and standard laboratory supplies
Application LevelIs the technology general-purpose for many applications in the space, or was it designed for a narrow use case?	Range of tissue types, extracellular matrix substitutes or hydrogels, cell types, and application flexibility	Demonstrated only for non-biological or proof-of-concept printing; no biological application shown	Demonstrated printing of simple biological materials such as hydrogels or acellular constructs	Demonstrated printing of cell-laden constructs with limited functional validation	Demonstrated capability for complex biological applications, such as multi-material printing or heterogeneous tissue constructs	Demonstrated capability for printing clinically relevant architectures with functional validation
Accessibility to documentationHow complete is the documentation for building and using the tool?	Repositories, CAD files, firmware and code documentation, G-code, custom bioink formulations, source material lists, and written or filmed assembly instructions	Insufficient information for reproduction	Provides partial build information but omits critical details required for reproduction	Provides enough information to build and operate, but some details such as component specifications, assembly steps, or calibration procedures require interpretation or optimization	Provides detailed building and operating information, enabling reproduction with limited additional information	Provides a complete build guide enabling direct reproduction, including all design files, bill of materials, fabrication protocols, software or firmware, operating procedures, and user support resources
ValidationTroubleshooting ComplexityHow well validated is the technology, and how easy is it to validate once built?	Mechanical validation, such as axis accuracy, syringe-pump function, and nozzle flow behavior; material validation, such as rheology, cross-linking, and shape; biological validation, such as cell viability assays	Requires extensive validation and benchmarking against commercial systems or established standards; failures may require redesign of hardware, software, or biological protocols	Requires advanced validation against multiple performance criteria; troubleshooting requires multidisciplinary expertise	Requires multiple validation steps involving both hardware and biological performance	Requires basic calibration and performance testing using readily available tools	Requires only verification of system performance using simple direct tests
SpeedCycle TimeHow fast does the method generate usable parts or the intended outcome once built, compared with traditional or alternative tools?	Time to fabricate a construct, considering printing speed, automation, and workflow efficiency	Slower than alternatives and impractical for routine use	Slower than alternatives	Moderate increase in printing time, such as hours	Slightly slower, such as minutes, but still practical for routine printing	Faster than alternatives
Build TimeHow quickly can the device or method be set up? This category contributes to scalability, although fast setup does not necessarily imply scalable large-batch manufacturing.	Material sourcing time, mechanical and electrical assembly, firmware or software setup, calibration, bioink optimization, and sterility modifications	Requires complex fabrication and assembly of custom components, calibration, and multiple stages of optimization or modification (multiday)	Requires fabrication and assembly of custom components and calibration; optimization is expected (multiday)	Requires assembly of components and calibration with instructions; limited optimization expected (multiday)	Requires minor assembly of an existing platform with minimal calibration (operational within 1 day)	Ready to use with minimal setup, such as pre-assembly and no calibration or optimization requirement (same-day operation)

Liquid Handling

9 criteria

Score anchors for all implementation criteria under the Liquid Handling technique.

Criterion	Evidence to extract	1	2	3	4	5
ResolutionHow small or precise can this technology achieve?	Minimum handling volume, maximum volume, viscosity range, and accuracy	Minimum reliable volume >100	50-100	10-50	1-10	<1
ScalabilityThroughputHow scalable is the method from low device production to high-throughput biofabrication?	Number of channels and resource handling capacity	One sample at a time; requires manual intervention	Automated continuous operation but limited to small batch sizes	Can process a full plate independently	Multichannel unattended operation	8 or more channels
Skill ComplexityHow broad or specialized are the skills needed to build and use the technology?	Mechanical assembly, CAD, electronics, soldering, and programming	Expert-level skill required across several areas	Advanced skills in multiple areas required	Moderate maker skills and common laboratory experience required	Basic assembly and simple coding; tasks can be completed by a typical researcher	Plug-and-play system or simple assembly; no specialized skills required
EquipmentConsumableFacility Requirement AccessibilityHow accessible are the equipment, consumables, technology, and facilities required to build and use this tool?	Tips, syringes, proprietary consumables, enclosure requirements, and recurring costs	Requires cleanroom access, specialized manufacturing facilities, or highly proprietary consumables	Requires expensive specialized equipment or difficult-to-source consumables	Requires a university workshop or shared user facility and some specialized components	Can be produced with common desktop fabrication tools and generic consumables	Requires only standard benchtop laboratory equipment and widely available generic consumables
Application LevelIs the technology general-purpose for many applications in the space, or was it designed for a narrow use case?	Demonstrated liquid types, viscosity ranges, particle-containing liquids, supported operations, compatible labware, programmability, and protocol flexibility	Demonstrated one fixed liquid in a narrowly defined procedure	Supports one main application with limited changes in volume, liquid, or protocol	Supports several common liquid-handling tasks or liquid types	Supports multiple workflows, labware formats, and challenging liquids	General-purpose programmable and modular platform suitable for a variety of liquids
Accessibility to documentationHow complete is the documentation for building and using the tool?	Open-access article, bill of materials, CAD files, source code, firmware and wiring diagrams, assembly instructions, calibration and validation workflows, operating protocols, troubleshooting guides, and open-source license	Only conceptual description is provided; critical information is missing	Partial methods are provided, but essential files, code, or component details are absent	Enough information to attempt replication, but substantial interpretation is required	Complete build and operating instructions with only minor gaps	Complete openly accessible package with files, code, calibration examples, and troubleshooting
ValidationTroubleshooting ComplexityHow well validated is the technology, and how easy is it to validate once built?	Validation methods, tested volumes, tested liquids, replicates, accuracy, precision, multiday tests, multidevice tests, benchmarks against commercial liquid handlers, acceptance criteria, and troubleshooting information	No meaningful quantitative validation and no calibration procedure	Tested under one condition with limited replicates and no benchmark	Accuracy or precision tested across multiple volumes or conditions; basic calibration provided	Validated across several volumes and liquid types and compared with a conventional method	Extensive multiday, multidevice validation with clear calibration and troubleshooting guidance
SpeedCycle TimeHow fast does the method generate usable parts or the intended outcome once built, compared with traditional or alternative tools?	Time required for aspiration and dispensing cycles compared with similar liquid-handling methods	More than 2x slower	20-100% slower	Within +/-20% of comparable methods	1.2-3x faster	More than 3x faster
Build TimeHow quickly can the device or method be set up? This category contributes to scalability, although fast setup does not necessarily imply scalable large-batch manufacturing.	Active hands-on construction time, total construction time, software setup, calibration time, and time to first successful operation	More than one month or more than 80 active hours	One to four weeks or approximately 40-80 hours	Two to seven days or approximately 16-40 hours	Less than two days or approximately 4-16 hours	Less than four hours or essentially ready to operate

Microfabrication

9 criteria

Score anchors for all implementation criteria under the Microfabrication technique.

Criterion	Evidence to extract	1	2	3	4	5
ResolutionHow small or precise can this technology achieve?	Feature size	>500 um	100-500 um	50-100 um	10-50 um	<10 um
ScalabilityThroughputHow scalable is the method from low device production to high-throughput biofabrication?	Fabrication batch size, process repeatability, and parallel processing	Single-device fabrication; each device requires independent fabrication steps; no reusable components (1-10 devices per month)	Small-batch fabrication with manual processing and limited reuse of molds or masters (10-50 devices per month once a mold or master is made)	Batch fabrication enabled by reusable molds or masters; multiple devices produced from a single fabrication step (50-200 devices per month)	Parallelized fabrication workflow using standardized processes, allowing consistent production of many devices (500-1000 devices per month)	Automated or highly standardized manufacturing workflow with minimal manual intervention and high production capacity (1000+ devices per day)
Skill ComplexityHow broad or specialized are the skills needed to build and use the technology?	CAD, photolithography and patterning, etching, characterization, cleanroom protocols, and materials science	Expert-level skills required for developing new fabrication methods, designing custom equipment, optimizing novel materials or processes, and establishing new manufacturing workflows	Requires advanced microfabrication expertise, including photolithography, microscale patterning, specialized equipment operation, precision alignment, and fabrication troubleshooting	Requires microfabrication laboratory skills, including established fabrication workflows, mold preparation, surface treatment, bonding techniques, and optimization of fabrication parameters	Requires CAD design, desktop fabrication such as 3D printing or laser cutting, basic bonding or assembly, and dimensional verification	Requires basic fabrication skills, including device assembly, simple cutting or molding, following published fabrication protocols, and basic materials handling
EquipmentConsumableFacility Requirement AccessibilityHow accessible are the equipment, consumables, technology, and facilities required to build and use this tool?	Benchtop versus cleanroom operation; professional-grade versus maker-grade consumables; CAD software accessibility	Requires highly specialized facilities or proprietary equipment; outsourced fabrication likely	Requires cleanroom access	Requires specialized laboratory equipment and consumables, such as a spin coater, plasma cleaner, PDMS, specialized polymers, or UV curing systems	Requires desktop fabrication tools and standard laboratory equipment; materials are readily available	Requires common tools and commercially available materials; no specialized laboratory equipment or facilities required
Application LevelIs the technology general-purpose for many applications in the space, or was it designed for a narrow use case?	Specificity versus generality of the biological or engineering problem, including disease modeling, organ or cell applications, and drug screening models	Demonstrated only as proof of concept without a functional application	Produces a functional device for a limited or narrow purpose with basic validation of intended operation	Produces a functional biological or engineering platform validated for its intended application	Enables advanced or expanded applications, such as integrated sensing or multifunction platforms	Enables highly versatile or broadly applicable platforms, such as automated systems, high-throughput screening, multi-organ systems, or clinically relevant applications
Accessibility to documentationHow complete is the documentation for building and using the tool?	CAD or mask files, bill of materials for consumables and hardware, build instruction manual, process flow sheets or SOPs, calibration metrics, source code, software documentation, and troubleshooting or failure-mode documentation	Insufficient information for reproduction	Describes the fabrication approach and materials but omits critical process parameters	Provides a reproducible fabrication workflow with major materials, steps, and conditions, but some optimization details are unavailable	Provides detailed fabrication protocols, including device design, materials, process conditions, and assembly methods	Provides a complete fabrication package, including design files such as CAD or masks, detailed protocols, process parameters, and troubleshooting guidance
ValidationTroubleshooting ComplexityHow well validated is the technology, and how easy is it to validate once built?	Feature validation, such as imaging, metrology, or microscopy; functional and material validation, such as flow or leak testing, surface characterization, or spectroscopy; comparison with baseline fabrication methods; physical, biological, or chemical assays	Requires extensive characterization, benchmarking, and expert troubleshooting; failure sources are difficult to identify	Requires specialized testing and optimization of multiple fabrication parameters; troubleshooting requires advanced expertise	Requires functional testing and process optimization; common failure sources can be identified with experience	Requires standard validation tests with clear acceptance criteria; troubleshooting approaches are established	Requires only basic validation with clear pass/fail criteria; failures are easy to identify and correct
SpeedCycle TimeHow fast does the method generate usable parts or the intended outcome once built, compared with traditional or alternative tools?	Design-to-device turnaround compared with traditional fabrication methods	Slower than traditional methods and requires multiple iterations	Slower than traditional methods by hours	Approximately the same duration as traditional methods	Hours to days faster than existing methods	Days to weeks faster than existing methods
Build TimeHow quickly can the device or method be set up? This category contributes to scalability, although fast setup does not necessarily imply scalable large-batch manufacturing.	Material sourcing time, mechanical assembly, leak testing, calibration, biological validation, fabrication optimization, and sterility validation	More than 1 month	1-4 weeks	1 week	Less than 1 week	Less than 1 day

and how complex is it to source and build them?

1 criteria

Score anchors for all implementation criteria under the and how complex is it to source and build them? technique.

Criterion	Evidence to extract	1	2	3	4	5
Build and Part Sourcing ComplexityHow many components are off-the-shelf versus custom-made	Bioprinting	Ability to convert an existing 3D printer; use of off-the-shelf firmware, control boards, extruders, dispensers, or other components; amount of custom fabrication required	Requires design and development of a novel printing system, including custom mechanical design, electronics, control software, and specialized fabrication tools	Requires custom hardware integration involving structural fabrication, electronic modifications, and/or firmware or software adjustments	Requires multiple custom or modified components, such as 3D-printed mounts, custom brackets, or modified electronics; basic mechanical assembly and wiring required	Requires only commercially available components, such as a syringe pump or extrusion nozzle printhead, on a repurposed 3D printer; no custom fabrication or electronic modification