If you are planning a new bacteriophage study, start in the Phage Project Success Hub for practical guidance and success-focused resources—and use Creative Biolabs to streamline the work from discovery to data delivery through services such as Phage Enrichment, Phage Isolation, and Phage Analytics. This intake checklist is designed to help you provide complete, decision-ready information in one pass, so your project can begin with fewer back-and-forth emails, fewer hidden assumptions, and a cleaner experimental plan.
All services described on this page are for research use only and are not intended for clinical diagnosis or treatment.
Phage projects fail or stall for surprisingly consistent reasons: incomplete sample metadata, missing host strain details, unclear readouts, and mismatched feasibility expectations (for example, requesting host-range expansion without providing a host panel). A well-structured phage project intake checklist prevents avoidable delays by making project requirements explicit at the start.
This page is built as a practical submission guide you can copy into an email, paste into a project form, or use as an internal lab handoff document. It covers:
project objectives and constraints
sample requirements and declarations
host/strain information and culture conditions
the readouts that determine “success”
deliverable structure (so you know what you will receive)
a pre-submission self-check to avoid the common failure points
Provide Complete Intake Details Up Front to Reduce Back-and-Forth Communication
A productive phage kickoff happens when three things are unambiguous from day one:
what you want to learn or build
what biological materials you can provide (samples + hosts)
what outputs you need to decide the next step
To make that easy, use the “Copy/Paste Intake Block” below. It is intentionally structured in the same order that a phage workflow is executed.
Project Intake (paste into your message)
Project goal and application context:
Target bacterial species / strain(s):
Sample types and counts (per type):
Biosafety declarations (research use only):
Host panel availability (number of strains, IDs):
Required readouts (choose from the checklist below):
Special constraints (antibiotic markers, media, temperature, aeration):
Data handling needs (raw reads, assembled genomes, annotation format, report format):
Pro Tip: If you want a technician-ready intake form, include “intake template” in your message when requesting a quote.
Phage Project Information Module: Goals, Use Case, Timeline
Define the project goal in one sentence
Examples of strong goals:
isolate lytic phages against a specified bacterial strain set for a research workflow
quantify host range and relative efficiency of plating across a defined panel
generate genomic and DNA analysis outputs for comparative characterization
purify phage stocks to a defined specification for downstream assays
perform display screening for binder discovery in a defined selection format
Examples of ambiguous goals (usually cause delays):
“find good phages” (good by what metric?)
“broad host range” (how many strains, which ones, and what’s the acceptance threshold?)
“high titer” (what target titer, in what buffer, at what storage condition?)
Timeline and decision points
Include:
your preferred start date
the earliest date you can ship samples/hosts
any fixed milestones (grant deadline, lab meeting, collaborator handoff)
the decision you will make from the readout (for example, which candidate(s) advance to sequencing or purification)
Pro Tip: If your timeline is tight, ask about bundling discovery + characterization in a single workflow using Phage Test and Phage Analytics to reduce handoffs.
For each sample type (wastewater, soil, sediment, swab, lysate, bioreactor effluent, etc.), provide:
sampling location type
collection date
any pre-processing (filtration, centrifugation, enrichment performed or not)
expected microbial load context if known (optional)
Volume and concentration
Provide:
total volume per sample
number of aliquots
container type
concentration notes if pre-enriched
Storage and transport conditions
Include:
storage temperature (short-term and long-term)
freeze/thaw history
preservatives or additives if any
shipping format (ice packs vs dry ice)
Hazard and compliance declaration (required)
State:
biosafety level classification of materials to the best of your knowledge
any known hazards (chemical, biological, antibiotic resistance context for research workflows)
confirmation that the work is for research use only and not for clinical diagnosis or treatment
Pro Tip: If you are unsure whether your sample format is suitable, request a quick pre-check aligned with Phage Enrichment and Phage Isolation requirements before shipping.
Host and Strain Module: Strain Identity, Culture Conditions, Phenotypes
Host strain identity and provenance
For each host strain, provide:
species and strain name/ID
source (lab collection, collaborator, vendor)
passage history if relevant
genotype notes (plasmids, antibiotic markers, engineered traits) if relevant to growth and selection
Culture conditions that affect phage performance
Phage adsorption, plaque morphology, and apparent host range can shift with small culture changes. Provide:
media and recipe (LB, TSB, minimal media, supplemented media)
incubation temperature
shaking/aeration conditions
typical OD at infection/assay setup
soft-agar concentration used for overlays (if you have a standard)
any additives (Mg2+, Ca2+, antibiotics) that are routinely used
capsule/serotype notes (important for adsorption-related outcomes in many systems)
known phage resistance history
growth rate notes (slow growers need assay adjustments)
Pro Tip: If you have a mixed host panel and want systematic screening, ask about pairing Phage Test with Phage Analytics to standardize readouts across the panel.
whether you want relative EOP categories or quantitative values
Fig.1 Efficiency of plating (EOP) heat map showing productivity categories across bacterial strains for multiple bacteriophages; NA indicates no lysis. (OA Literature)1
Practical note: a heat-map style EOP summary can be an efficient way to compare infectivity patterns across a panel and rapidly down-select candidates for deeper characterization.
Related Service: For structured host range and infectivity assessment, use Phage Test together with Phage Analytics.
Stability readouts (temperature, pH, storage)
Define:
storage buffer preferences (if any)
target storage temperature(s)
pH range of interest
acceptable titer drop over time (for example, no more than 1-log loss over X days at Y condition)
Related Service: If stability must be demonstrated alongside other characterization outputs, include it upfront in your Phage Analytics request so it is planned into the workflow.
Genomics and sequence-level readouts
Specify:
whether you want raw reads, assembled genome, annotation, or all of the above
depth expectations if relevant
whether you need comparative genomics across multiple isolates
This page focuses on service workflows. If you need research-use reagents or project-support materials (for example, project-specific consumables, reference materials, or workflow-compatible components), request a product list in your inquiry and specify your organism system, intended assays, and required quantities.
If you already have candidates and need decision-ready characterization, reference Phage Analytics and list your required readouts
Discuss Your Project
FAQs
Q: What is the minimum information needed to start a phage project?
A: At minimum, provide a clear goal, the host strain identity (with culture conditions), sample type/volume/storage details, and at least one defined readout (for example, host range with an acceptance threshold). If any of these are missing, timelines often extend because feasibility cannot be assessed.
Q: Do I need to provide my own host strains?
A: In most research workflows, providing host strains (or a clearly defined host panel) is the fastest way to ensure the assays match your biological system. If you cannot ship hosts, include what you can provide (strain IDs, source, growth conditions) so alternatives can be assessed early.
Q: How should I define host range and EOP success criteria?
A: Define the host panel and the acceptance rule (for example, lysis on priority strains plus EOP above a chosen threshold). A panel-level summary (often heat-map style) helps down-select candidates efficiently.1
Q: Can I request sequencing and DNA analysis as part of the initial plan?
A: Yes. If genomics is a decision requirement, include it upfront so the workflow is designed to produce sequence-ready outputs. Pair Phage Genome Sequencing with Phage DNA Analysis for an integrated dataset.
Q: Is this checklist intended for clinical applications?
A: No. This checklist and all related services are intended for research use only and are not designed or promoted for clinical diagnosis or treatment.
Reference:
Ferriol-González, Celia, and Pilar Domingo-Calap. "The host range of generalist and specialist phages in capsule-diverse Klebsiella hosts is driven by the evolvability of receptor-binding proteins." PLOS Biology 23.11 (2025): e3003515. Distributed under Open Access license CC BY 4.0, without modification. https://doi.org/10.1371/journal.pbio.3003515
Please kindly note that our services can only be used to support research purposes (Not for clinical use).
Creative Biolabs is a globally recognized phage company. Creative Biolabs is committed to providing researchers with the most reliable service and the most competitive price.
Fig.1 Efficiency of plating (EOP) heat map showing productivity categories across bacterial strains for multiple bacteriophages; NA indicates no lysis. (OA Literature)1
