Notebook
Recruitment: (November 2024 - December 2024)
November 2024 - December 2024
- Hung recruitment fliers in many buildings across campus
- Reached out to various biology classes along campus
- Read applications, conducted interviews, and sent out acceptance/rejection letters
Spring Semester 2025
Week 1: January 27 - February 2
- Conducted preliminary literature reviews about SynBio applications in water and finalized project topic
- Began trainings in wetlab techniques
- Researched literature data to understand water synbio software needs and relevant mathematical models
Week 2: February 3 - February 9
- Developed subproject ideas and experiments
- Continued trainings in wetlab techniques, understanding safety guidelines
- Looked into metagenomics data and modeling literature pertaining to subprojects
Week 3: February 10 - February 16
- Developed case study topics for wet-lab proof of concept, while simultaneously conducting wetlab trainings
- Conducted literature reviews on detection method, phage dynamics, and reviewed structure of metagenomic data
Week 4: February 17 - February 23
- Researched cyanobacterial strains from ATCC, UTEX, and Carolina, and reviewed existing bacterial and species databases.
- Expanded literature review on phage–bacteria dynamics and modeling, while refining earlier searches for detection methods.
Week 5: February 24 - March 2
- Continued literature reviews for current methods
- Decided on creating a predictive model
- Began writing code for simulations of nonlinear systems of differential equations.
Week 6: March 3 - March 9
- Reviewing literature for cyanophage engineering techniques
- Reviewing machine learning models pertaining to desired applications
- Focused on mcy gene expression and HABs
Week 7: March 10 - March 16
- Ordered M. aeruginosa strain LE3 (UTEX 3037), began planning setup for growth conditions and inoculation
- Conducted literature reviews on a biosensor and B. subtilis MICI biofilms
- Confirmed data availability for machine learning model training. Decided on creating database to train a model on
- Conducted simulations of phage-bacteria system of differential equations
Week 8: March 17 - March 23
- Refining method for sensor implementation and application in real world
- Refined initial software idea, decided on lat/long as essential inputs
Week 9: March 24 - March 30
- Ordered reagents for making BG-11 media for growing cyanobacteria while continuing wetlab training
- Looked more in depth as to how the parameters affect the phage-bacteria dynamics
- Reviewed essential python packages for software development
Week 10: March 31 - April 6
- Wrote up protocols for sensor implementation and conducted microscopy training
- Looked at the sra database for what it offers.
Week 11: April 7 - April 13
- Received initial orders of M. aeruginosa. Inoculated subcultures and determined a preliminary setup for culture growth, additionally made BG-11 media.
- Began collection of studies that perform metaT and do DE gene analysis in HABs
- Looked at optimal conditions datasets as features.
- Started working on phage diffusion in biofilm model
Week 12: April 14 - April 20
- Looked into a toehold riboswitch literature database
- Inoculated new M. aeruginosa cultures
- Decided on using real-world environmental data over lab data
- Designed circuits for B. subtilis for corrosion prevention
Week 13: April 21 - April 27
- Reanalyzed the geometry of the biofilm-phage mode
- Started M. aeruginosa subcultures, tested growth in BG-11 media from different sources (premade by Carolina vs. UTEX vs. in house)
- Continued database/dataset collection
Week 14: April 28 - May 4
- Continued investigation of toehold riboswitch literature database
- Found four useful databases
- Looked into numerical methods for simulating partial differential equations
Week 15: May 5 - May 11
- NASBA primers creation, targeted regions of mcy genome, and ordered plasmids
- Determined procedures for creating BG-11 plates and growing M. aeruginosa lawns
- Started deciding essential features for the software
May Break 2025
Week 16: May 12 - May 18
- Designed circuits and ordered primers and plasmids
- Designed experiments and determined assay techniques
- Verified partial differential equations numerical simulations aligned with analytical solutions
- Created BG-11 agar plates
- Attempted to streak and spread M. aeruginosa on BG-11 agar plates and to grow lawns of M. aeruginosa
Week 17: May 19 - May 25
- Designed circuits and ordered primers and plasmids
- Designed experiments and determined assay techniques
- Preparing media for culturing Bacillus subtilis
- Shortlisting database/website extraction points.
Summer Session 2025
Week 18: May 26 - June 1
- Began design of an in silico riboswitch for target region
- Decided on prioritizing true metagenomics over 16s
- Engineered plasmid encoding for a functional cellulase for mycobacterial biofilm degradation
- Constructed diffusion model of phage infection of a biofilm
- Brought up freeze-dried bacteria received from ATCC
- Miniprepped plasmids received from Addgene
- Determined procedure for taking M. aeruginosa OD measurements, began testing culture growth under different culturing conditions
- Collected environmental samples, started cyanophage enrichments
Week 19: June 2 - June 8
- Inoculated plasmids for riboswitch
- Finalized databases to extract from
- Attempted and failed to transform plasmid with cellulase into mycobacteria
- Extracted genomic DNA for B. subtilis 168 and B. subtilis 3610
- Successfully began growing M. aeruginosa on agar plates
- Validated identity of M. aeruginosa cultures via culture PCR
- Began first cyanophage plating assays
- Re-analyzed geometry of system for biofilm-phage infection system of PDEs to a 1D cartesian model
Week 20: June 9 - June 15
- Assembly of mcy trigger plasmid
- Began growing phage to a high titer
- Created web scraping scripts for each database
- Amplify coding regions from B. subtilis genomic DNA
- Mutated out BsaI restriction cut sites in a coding region and assembled them into an empty plasmid
- Began first batch of liquid cyanophage assays
- Constructed 1D advection simulations that demonstrated cyanophage is limited in treatment ability
- Collected lakewater samples, attempted culture PCR on samples to search for presence of M. aeruginosa
Week 21: June 16 - June 22
- Collecting trigger plasmid, confirming success
- Finalized extraction
- Confirmed success of the coding region plasmid
- Ordered A. baylyi from Addgene (ADP1-ISx - Bacterial strain 216551)
- Engineered B. subtilis integration vector to make it compatible with golden gate assembly
- Attempted 16S culture PCR from environmental samples
- Attempted environmental DNA extraction from lakewater samples
- Analyzed mathematical model for phage-biofilm effectiveness
Week 22: June 23 - June 29
- Assembling switch plasmid
- Cleaning extracted data for merging.
- Confirmed success of integration vector.
- Conducted a session of BLAST science outreach program
- Identified potential cyanophage plaque on an agar assay
- Collected more environmental samples, started more enrichments and assays
- Adapted Acinetobacter and parameters into mathematical model for simulations
- Constructed novel mathematical model of Acinetobacter-M. aeruginosa dynamics
Week 23: June 30 - July 6
- Confirming success of switch plasmid assembly
- Looked into how to process our extracted samples for quantitative data
- Assembled the promoter, RBS, CDS, terminator into the integration vector for B. subtilis
- Made B. subtilis competent cells
- Sequenced the assembly for B. subtilis and found a problem for the RBS
- Visualized portion of potential cyanophage plaque on SEM, while conducting more cyanophage assays
- Tested DNA and RNA extraction procedures on M. aeruginosa
- Conducted parameter sweeps on Acinetobacter-M. aeruginosa dynamics
Week 24: July 7 - July 13
- Redo-ing switch plasmid assembly, DE gene search
- Chose Kraken and Bracken as our method of taxonomic processing
- Ordered RBS as DNA oligos and redo the assembly into the integration vector
- Ran existing M. aeruginosa sequences through Phastest software, compared existing M. aeruginosa cyanophage sequences with BLAST
- Advection-reaction PDE models on Acinetobacter-HAB dynamics
Week 25: July 14 - July 20
- New reporter addition to switch plasmid
- Created metagenomic pipeline
- Confirmed success of the integration vector assembly
- Tested TRIzol procedure for M. aeruginosa RNA extraction
- Observed substantial plaques on cyanophage assay plate, attempted to propagate plaques
- Reaction-diffusion equations for phage transport in biofilms expanded for analysis
Week 26: July 21 - July 27
- Cotransforming mcy switch and trigger
- Ran samples through metagenomic pipeline
- Transformed the constructed integration into B. subtilis
- Conducted a small-scale RNA extraction M. aeruginosa and A. baylyi coculture experiment
- Observed conditions for proper deployment of phage in pipes
- Planned lakewater microcosm experiment
Week 27: July 28 - August 3
- Beginning inducing of mcy co-transformation
- Merged metagenomic pipeline sample output into a single matrix
- Confirmed the success of the integration vector integrated into B. subtilis genome
- Made specific media for B. subtilis biofilm assays
- Inoculated preliminary lakewater microcosms and began preliminary RNA sequencing experiment
- Wrote up models of phage pipe transport and HAB suppression
August Break 2025
Week 28: August 4 - August 10
- Grew sterile biofilms on PVC pipes
- Mutated single nucleotide mutations in switches
- Merged taxonomic abundance result with previously extracted metadata
- Literature reviews for B. subtilis biofilm assays
- Sample collection for preliminary lakewater microcosm experiment
- Created a differential equation for B. subtilis deployment & detachment
Week 29: August 11 - August 17
- Began construction of pipe microcosm and 3D printing prototypes of the microcosm parts
- Grew nonsterile biofilms on PVC pipes for microcosm innoculation
- Redid mcy switch co-transformations
- Created initial aquery database
- Designed microcosms for B. subtilis corrosion protection ability
Week 30: August 18 - August 24
- Set up final household pipe microcosms
- Began inducing second mcy co-transformation
- Reviewed machine learning models and started predictor script creation
- Attempted RNA extractions from preliminary lakewater microcosm samples
- Compiled the python files of the mathematical modeling
Fall Semester 2025
Week 31: August 25 - August 31
- Began pipe microcosm experiment with flushings and bacterial titer sampling
- Did a DE gene search in order to prepare to design DE gene (gdhA and cpcB switches)
- Updated predictor script to utilize three classification models
- Tested growth curve and biofilm morphology for B. subtilis
- Attempted more RNA extractions from preliminary lakewater microcosm experiments
- Compiled information and writeups for mathematical models
Week 32: September 1 - September 7
- Further prepping to design DE gene (gdhA and cpcB switches)
- Continued pipe microcosm experiment with titer measurements
- Flushed pipe microcosm with phage
- Further analyzed model for B. subtilis biofilm detachmen
- Trained model on matrix containing environmental features and species abundance
- Measured the motility for engineered B. subtilis strains
- Inoculated new lakewater microcosms, began new microcosm experiment
Week 33: September 8 - September 14
- Finished pipe microcosm experiment
- Compiling info for wiki
- Created database SQL format, along with streamlit application and api
- Made microcosms for B. subtilis and took SEM pictures for the steel plates treated in microcosms
- Collected samples for lakewater microcosm experiment
- Extracted DNA and ran 16S PCRs for microcosm experiment samples
- Tested new RNA extraction procedure for microcosm samples
- Incorporated fitness score from the software into mathematical model framework
Week 34: September 15 - September 21
- Flushed biofilms on pipes with phage and placed under HIROX microscope
- Worked on RNA seq database, began running Transcriptomic pipeline on Galaxy
- Created predictive model frontend scripts
- Extracted RNA for RNA seq for all 3 case studies
- Conducted more DNA extractions and PCRs for lakewater microcosm experiment
- Compiled simulations and graphs from the mathematical model
Week 35: September 22 - September 28
- Continuing work on RNA seq database, continued running Transcriptomic pipeline on Galaxy, functional analyses w/DAVID
- Looked into metatranscriptomic and what it offers. Created metagenomic and metatranscriptomic comparison scripts
- Extract 16S DNA for all 3 case studies, sent 16S for sequencing
- Presented mathematical models on synthetic biology in aquatic systems
Week 36: September 29 - October 5
- Analyzing 16S data for all 3 case studies
- Writing up wiki pages
- Utilizing David & Galaxy for RNA-seq analysis
- Began AI-based T and metaT analysis
- Saving models publicly available repository
- Compiled graphs and heatmaps and simulations of mathematical models
Week 37: October 6 - Wiki Freeze!
- Analyzed RNA-Seq data for all three case studies
- Completing wiki
- Continued AI-based T and metaT analysis
- Completing wiki and pushing software tools