Atomic Force Microscopy data of Poly-3-hydroxybutarate and Poly-3-hydroxyvalerate films

This dataset consists of atomic force microscopy (AFM) scans of  Polyhydroxyalkanoate films in text (.txt) format as well as their corresponding previews in (.png) format. 

The surfaces of Poly-3-hydroxybutarate (P3HB [100%]) and Poly-3-hydroxyvalerate (P3HB-co-P3HV) [90% :10%]) of six film thicknesses, three scan sizes (5µm, 10µm and 30µm) and three unique scan areas have been scanned with AFM equipment from NT-MDT spectrum instruments.

This dataset has been used in the work 10.5281/zenodo.10621269 within which the scan data has been divided into multiple sub-pools for experimentation. Details on the structure of the dataset are as follows: 

• The (.txt) format of the scanned images can be opened using Gwyddion (gwyddion.net)

FOLDER INDEX
ITMO_PHA-AFM-SCAN-Data/
├── Set.1_P3HB.(Homopolymer)
│   ├── Size_5um
│   │	├── TXT
│   │   │   └── 17(.txt)s
│   │	└── IMG
│   │   │   └── 17(.png)s
│   ├── Size_10um
│   │	├── TXT
│   │   │   └── 17(.txt)s
│   │	└── IMG
│   │   │   └── 17(.png)s
│   └── Size_30um
│       ├── TXT
│       │   └── 18(.txt)s
│       └── IMG
│           └── 18(.png)s
├── Set.2_P3HB-co-P3HV.(Heteropolymer)
│   ├── Size_5um
│   │   ├── TXT
│   │   │   └── 18(.txt)s
│   │   └── IMG
│   │   │   └── 18(.png)s
│   ├── Size_10um
│   │   ├── TXT
│   │   │   └── 18(.txt)s
│   │   └── IMG
│   │   │   └── 18(.png)s
│   └── Size_30um
│        ├── TXT
│        │   └── 17(.txt)s
│        └── IMG
│            └── 17(.png)s
│
└── Read_me.txt

For convenience, we show an example of referencing data pools using the Folder Index

E.g. 

• With reference to the article(https://doi.org/10.1021/acsomega.4c02502), Case 1(a) is a data pool consisting only of scan data from P3HB polymer with all three sizes of data, in this case the reference is written as: (P1,L2) 
• Similarly, in case of Case 2(b), which is a data pool consisting of scan data from P3HB and P3HB-co-P3HV polymers with exclusively 30µm scan sizes, the reference is written as: (P1, L2[30]) + (P2, L2[30])

The .txt and .png files have been named using the following nomenculatrue: 

                                                 P_Thickness.N_Area.A_Size.S.txt

                  P – Polymer (P3HB or P3HBV)
Thickness.N – Film thickness of the scanned sample (1-6)
        Area.A – Scanned area within the film (1-3)
          Size.S – Size of the scanned area (5µm,10µm,30µm)

e.g. (P3HB_Thickness.1_Area.1_Size.5.txt)

Please cite this dataset when used in applications as:
Ireddy, A. T. S., & Ghorabe, F. D. E. (2024). Atomic Force Microscopy data of Poly-3-hydroxybutarate and Poly-3-hydroxyvalerate films [Data set]. Zenodo. https://doi.org/10.5281/zenodo.10649355

For additonal details, please contact: ireddy@itmo.ru