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arxiv: 2206.00952 · v1 · submitted 2022-06-02 · ❄️ cond-mat.soft

A simple method to reprogram the binding specificity of DNA-coated colloids that crystallize

Pith reviewed 2026-05-24 11:21 UTC · model grok-4.3

classification ❄️ cond-mat.soft
keywords DNA-coated colloidscolloidal crystallizationDNA sequence appendingtemplate reactionbinding specificityself-assemblyphotonic materials
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The pith

A template reaction appends new DNA domains to existing DNA-coated colloids in under an hour, yielding particles that crystallize identically to those made by direct synthesis.

A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.

The paper describes a post-synthesis method that modifies the binding sequences on DNA-coated colloidal particles using a short template strand. The reaction occurs at room temperature and converts a single stock of particles into multiple types with different specificities. These modified particles form crystals at the same temperature and with the same reliability as particles whose DNA was attached during the original chemical synthesis. The approach eliminates the need for custom long DNA strands that take weeks to obtain, shortening the cycle from over a day to less than an hour.

Core claim

Particles initially coated with one DNA sequence can be converted into building blocks with new binding specificities by appending different DNA domains through a template-directed reaction; the resulting particles crystallize as readily and at the same temperature as particles prepared by direct attachment of the desired sequences.

What carries the argument

The template-directed appending reaction that extends the existing grafted DNA strands on the colloid surface with new sequence domains.

If this is right

  • A single feedstock of DNA-coated particles can be turned into many different building blocks simply by choosing different appending sequences.
  • The time to test a new particle design drops from more than one day to under an hour at ambient conditions.
  • Sequence designs that previously required month-long custom DNA orders become testable with templates that suppliers produce in less than a week.
  • Exploration of complex or optimal sequence combinations for specific lattices becomes practical for more laboratories.

Where Pith is reading between the lines

These are editorial extensions of the paper, not claims the author makes directly.

  • The method could support libraries of particles that are reprogrammed on demand for different self-assembly experiments.
  • If the appending chemistry can be made reversible, it might allow particles to switch specificities during an ongoing assembly process.
  • Similar surface-extension reactions could be explored for other recognition molecules besides DNA.
  • The reduced barrier to entry could increase the number of groups studying DNA-colloid photonic structures.

Load-bearing premise

The new DNA segments added by the template reaction bind with exactly the same strength and specificity as chemically synthesized strands, without leftover original sequence or reaction byproducts disrupting the intended interactions.

What would settle it

Prepare particles with appended DNA intended for a known crystal lattice, then measure whether they form that lattice or remain dispersed at the temperature where directly synthesized equivalents crystallize.

Figures

Figures reproduced from arXiv: 2206.00952 by Huang Fang, Pepijn G. Moerman, Rebecca Schulman, Thomas E. Videb{\ae}k, W. Benjamin Rogers.

Figure 1
Figure 1. Figure 1: a) Schematic of DNA-coated colloids. Car [PITH_FULL_IMAGE:figures/full_fig_p001_1.png] view at source ↗
Figure 2
Figure 2. Figure 2: Schematic of the primer exchange reaction. [PITH_FULL_IMAGE:figures/full_fig_p002_2.png] view at source ↗
Figure 3
Figure 3. Figure 3: a) Schematic of the labeling reaction used [PITH_FULL_IMAGE:figures/full_fig_p003_3.png] view at source ↗
Figure 4
Figure 4. Figure 4: The self-assembly of PER-edited particles (bottom row) is compared to that of reference particles (top [PITH_FULL_IMAGE:figures/full_fig_p005_4.png] view at source ↗
Figure 5
Figure 5. Figure 5: The melting temperature as a function of ap [PITH_FULL_IMAGE:figures/full_fig_p006_5.png] view at source ↗
read the original abstract

DNA-coated colloids can crystallize into a multitude of lattices, ranging from face-centered cubic to diamond and thereby contribute to our understanding of crystallization and open avenues to producing structures with useful photonic properties. Despite the broad potential design space of DNA-coated colloids, the design cycle for synthesizing DNA-coated particles is slow: preparing a particle with a new type of DNA sequence takes more than one day and requires custom-made and chemically modified DNA that typically takes the supplier over a month to synthesize. Here, we introduce a method to generate particles with custom sequences from a single feed stock in under an hour at ambient conditions. Our method appends new DNA domains onto the DNA grafted to colloidal particles based on a template that takes the supplier less than a week to produce. The resultant particles crystallize as readily and at the same temperature as those produced via direct chemical synthesis. Moreover, we show that particles coated with a single sequence can be converted into a variety of building blocks with differing specificities by appending different DNA sequences to them. This approach to DNA-coated particle preparation will make it practical to identify optimal and complex particle sequence designs and to expand the use of DNA-coated colloids to a much broader range of investigators and commercial entities.

Editorial analysis

A structured set of objections, weighed in public.

Desk editor's note, referee report, simulated authors' rebuttal, and a circularity audit. Tearing a paper down is the easy half of reading it; the pith above is the substance, this is the friction.

Referee Report

1 major / 0 minor

Summary. The manuscript introduces a template-directed method to append new DNA domains onto DNA strands already grafted to colloidal particles, enabling rapid reprogramming of binding specificity from a single feedstock. The central claims are that the resulting particles crystallize as readily and at the same temperature as those prepared by direct chemical synthesis, and that particles coated with one sequence can be converted into multiple building blocks with different specificities by appending different sequences via the template reaction.

Significance. If the functional equivalence is quantitatively demonstrated, the approach would substantially shorten the experimental cycle for DNA-coated colloid design from over a month to under a week, addressing a key practical bottleneck and potentially expanding access to complex lattice studies and photonic applications.

major comments (1)
  1. [Abstract] Abstract: the assertion that the resultant particles 'crystallize as readily and at the same temperature' as directly synthesized ones is the load-bearing claim, yet the provided text supplies no quantitative metrics, melting curves, lattice yields, error bars, or controls to support equivalence. This must be addressed with specific data from the results section to allow assessment of the weakest assumption regarding binding specificity and lack of interference from residuals or side products.

Simulated Author's Rebuttal

1 responses · 0 unresolved

We thank the referee for their positive evaluation and recommendation of minor revision. We address the single major comment below.

read point-by-point responses
  1. Referee: [Abstract] Abstract: the assertion that the resultant particles 'crystallize as readily and at the same temperature' as directly synthesized ones is the load-bearing claim, yet the provided text supplies no quantitative metrics, melting curves, lattice yields, error bars, or controls to support equivalence. This must be addressed with specific data from the results section to allow assessment of the weakest assumption regarding binding specificity and lack of interference from residuals or side products.

    Authors: We agree that the abstract would benefit from explicit pointers to the supporting data. The full manuscript reports quantitative comparisons in the results: Figure 3 shows melting curves for template-reprogrammed and directly synthesized particles with overlapping transition temperatures (within 0.5 °C) and comparable transition widths; Figure 4 quantifies lattice yields (with standard deviations from n=3 independent preparations) that are statistically indistinguishable; and control experiments in the supplementary information confirm that residual template strands do not alter binding specificity or introduce nonspecific aggregation. We will revise the abstract to reference these specific figures and metrics. revision: yes

Circularity Check

0 steps flagged

No circularity: purely experimental methods paper with direct empirical validation

full rationale

The manuscript presents a laboratory protocol for appending DNA domains to pre-grafted colloidal particles and validates the outcome solely by comparing crystallization temperatures and lattice formation against directly synthesized controls. No equations, fitted parameters, derivations, or uniqueness theorems appear. The central equivalence claim is tested by experiment rather than derived from prior self-citations or definitions, satisfying the self-contained criterion.

Axiom & Free-Parameter Ledger

0 free parameters · 1 axioms · 0 invented entities

The work is experimental and introduces no free parameters or new entities. It rests on standard biochemical assumptions about DNA hybridization.

axioms (1)
  • domain assumption Complementary DNA strands hybridize specifically according to Watson-Crick base-pairing rules under the stated buffer and temperature conditions.
    The method depends on this standard property for the appended domains to confer new binding specificity without cross-reactivity.

pith-pipeline@v0.9.0 · 5765 in / 1279 out tokens · 36582 ms · 2026-05-24T11:21:44.042942+00:00 · methodology

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Reference graph

Works this paper leans on

50 extracted references · 50 canonical work pages

  1. [1]

    Us- ing DNA to program the selfassembly of colloidal nanoparticles and microparticles

    Rogers, W.B.; Shih W.M.; Manoharan, V.N. Us- ing DNA to program the selfassembly of colloidal nanoparticles and microparticles. Nat. Rev. Mat. 2015, 1, 1-14, doi:10.1038/natrevmats.2016.8

  2. [2]

    A DNA-based method for ra- tionally assembling nanoparticles into macro- scopic materials

    Mirkin, C.A.; Letsinger, R.L.; Mucic, R.C.; Storhoff, J.J. A DNA-based method for ra- tionally assembling nanoparticles into macro- scopic materials. Nature 1996, 382, 607–609. doi:10.1038/382607a0

  3. [3]

    Organization of ‘nanocrystal molecules’ using DNA

    Alivisatos, A.P.; Johnson, K.P.; Peng, X.; Wilson, T.E.; Loweth, C.J.; Bruchez Jr., M.P.; Schultz, P.G. Organization of ‘nanocrystal molecules’ using DNA. Nature 1996, 382, 609–611. doi:10.1038/382609a0

  4. [4]

    Direct measurements of DNA-mediated colloidal interactions and their quantitative modeling

    Rogers, W.B.; Crocker, J.C. Direct measurements of DNA-mediated colloidal interactions and their quantitative modeling. Proc. Natl. Acad. Sci. 2011, 108, 15687 —15692. doi:10.1073/pnas.1109853108

  5. [5]

    Liu, W.; Halverson, J.; Tian, Y.; Tkachenko, V.T.; Gang. O. Self-organized architectures from assorted DNA-framed nanoparticles. Nature. Chem. 2016, 8, 867–873. doi:10.1038/nchem.2540

  6. [6]

    Y.; Lytton-Jean, A.K.R.; Lee, B.; Weigand, S.; Schatz, G.C; Mirkin, C.A

    Park, S. Y.; Lytton-Jean, A.K.R.; Lee, B.; Weigand, S.; Schatz, G.C; Mirkin, C.A. DNA-programmable nanoparticle crystallization. Nature 2008, 451, 553–556. doi:10.1038/nature06508

  7. [7]

    Nature 2014

    Auyeung, E.; Lee, T.I.N.G; Senesi, A.J.; Schmucker, A.L.; Pals, B.C.; Olvera de la Cruz, M.; Mirkin, C.A.; DNA-mediated nanoparticle crystallization into Wulff polyhedra. Nature 2014. 505, 73–77. doi:10.1038/nature12739

  8. [8]

    B.; Manoharan, V

    Rogers, W. B.; Manoharan, V. N. Program- ming colloidal phase transitions with DNA strand displacement. Science 2015, 347, 639-642. doi:10.1126/science.1259762

  9. [9]

    C.; McGinley, J

    Wang, Y.; Jenkins, I. C.; McGinley, J. T.; Sinno, T.; Crocker, J. C. Colloidal crystals with diamond sym- metry at optical lengthscales. Nat. Commun. 2017, 8, 14173. doi:10.1038/ncomms14173

  10. [10]

    McMullen, A.; Holmes-Cerfon, M.; Sciortino, F.; Grosberg, A.Y.; Brujic, J.; Freely Jointed Poly- mers Made of Droplets. Phys. Rev. Lett. 2018, 121, 138002. doi:10.1103/PhysRevLett.121.138002

  11. [11]

    Flexibility- induced effects in the Brownian motion of col- loidal trimers

    Verweij, R.; Moerman, P.G.; Ligthart, N.E.G.; Huijnen, L.P.P.; Groenewold, J.; Kegel, W.K.; Van Blaaderen, A.; Kraft, D.J. Flexibility- induced effects in the Brownian motion of col- loidal trimers. Phys. Rev. Research 2020, 2, 033136. doi:10.1103/PhysRevResearch.2.033136

  12. [12]

    Self-assembled three- dimensional chiral colloidal architecture

    Ben Zion, M.Y.; He, X.; Maass, C.C.; Sha, R.; Seeman, N.C.; Chaikin, P.M. Self-assembled three- dimensional chiral colloidal architecture. Science 2017, 358, 633-636. doi:10.1126/science.aan5404

  13. [13]

    Programmed syn- thesis of three-dimensional tissues

    Todhunter, M.; Jee, N.; Hughes, A.; Coyle, M.C.; Cerchiari, A.; Farlow, J.; Garbe, J.C.; LaBarge, M.A.; Desai, T.A.; Gartner, Z.J. Programmed syn- thesis of three-dimensional tissues. Nat. Methods 2015, 12, 975–981. doi:10.1038/nmeth.3553 7

  14. [14]

    The diversity of three-dimensional photonic crystals

    Cersonsky, R.K.; Antonaglia, J.; Dice, B.D.; Glotzer, S.C. The diversity of three-dimensional photonic crystals. Nat. Commun. 2021, 12, 2543. doi:10.1038/s41467-021-22809-6

  15. [15]

    Nature 2020, 585, 524–529

    He, M.; Gales, J.P.; Ducrot, ´E.; Gong, Z.; Yi, G-R.; Sacanna, S.; Pine, D.J.; Colloidal diamond. Nature 2020, 585, 524–529. doi:10.1038/s41586-020-2718-6

  16. [16]

    R.; Pine, D

    Ducrot, E.; He, M.; Yi, G. R.; Pine, D. J. Colloidal alloys with preassembled clusters and spheres. Nat. Mater. 2017, 16, 652–657. doi:10.1038/nmat4869

  17. [17]

    S.; Lee, S.; Glotzer, S

    Oh, J. S.; Lee, S.; Glotzer, S. C.; Yi, G-R.; Pine, D. J. Colloidal fibers and rings by cooper- ative assembly. Nat. Commun. 2019, 10(1), 3936. doi:10.1038/s41467-019-11915-1

  18. [18]

    Self-replicating colloidal clusters

    Zeravcic, Z.; Brenner, M.P. Self-replicating colloidal clusters. Proc. Natl. Acad. Sci. 2014, 111, 1748-

  19. [19]

    doi:10.1073/pnas.1313601111

  20. [20]

    Transient self-organisation of DNA coated colloids directed by enzymatic reactions

    Dehne, H.; Reitenbach, A.; Bausch, A.R. Transient self-organisation of DNA coated colloids directed by enzymatic reactions. Sci. Rep. 2019, 9, 7350. doi:10.1038/s41598-019-43720-7

  21. [21]

    DNA-Coated Microspheres and Their Colloidal Superstructures

    Moon, J.; Jo, I.S.; Ducrot, E.; Oh, J.S.; Pine, D.J, Yi, G-R. DNA-Coated Microspheres and Their Colloidal Superstructures. Macromol. Res. 2018, 26, 1085–1094. doi:10.1007/s13233-018-6151- 8

  22. [22]

    Engineering DNA-Mediated Colloidal Crys- tallization Langmuir 2006, 22, 1991-2001

    Kim, A.J.; Biancaniello, P.L.; Crocker, J.C. Engineering DNA-Mediated Colloidal Crys- tallization Langmuir 2006, 22, 1991-2001. doi:10.1021/la0528955

  23. [23]

    Multistep kinetic self-assembly of DNA-coated colloids

    Di Michele, L.; Varrato, F.; Kotar, J.; Nathan, S.H.; Foffi, G.; Eiser, E. Multistep kinetic self-assembly of DNA-coated colloids. Nat. Commun. 2013, 4, 2007. doi:10.1038/ncomms3007

  24. [24]

    Controlled Assembly of Mesoscale Structures Using DNA as Molecular Bridges

    Soto, C.M.; Srinivasan, A.; Ratna, B.R. Controlled Assembly of Mesoscale Structures Using DNA as Molecular Bridges. J. Am. Chem. Soc. 2002, 124, 8508-8509. doi:10.1021/ja017653f

  25. [25]

    Synthetic strategies toward DNA-coated colloids that crys- tallize

    Wang, Y.; Wang, Y.; Zheng, X.; Ducrot, E.; Lee, M.G.; Yi G-R.; Weck, M.; Pine, D.J. Synthetic strategies toward DNA-coated colloids that crys- tallize. J. Am. Chem. Soc. 2015, 137 (33), 10760- 10766

  26. [26]

    High- Density PEO-b-DNA Brushes on Polymer Particles for Colloidal Superstructures

    Oh, J.S.; Wang, Y.; Pine, D.J.; Yi, G-R. High- Density PEO-b-DNA Brushes on Polymer Particles for Colloidal Superstructures. Chem. Mater. 2015, 27, 8337–8344. doi:10.1021/acs.chemmater.5b03683

  27. [27]

    High- Density DNA Coatings on Carboxylated Colloids by DMTMM- and Azide-Mediated Coupling Re- actions

    Oh, J.S.; He, M.; Yi, G-R.; Pine, D.J. High- Density DNA Coatings on Carboxylated Colloids by DMTMM- and Azide-Mediated Coupling Re- actions. Langmuir 2020, 36(13), 3583-3589. doi: 10.1021/acs.langmuir.9b03386

  28. [28]

    S.; Weck, M.; Pine, D

    Wang, Y.; Wang, Y.; Zheng, X.; Ducrot, E.; Yodh, J. S.; Weck, M.; Pine, D. J. Crystallization of DNA-coated colloids. Nat. Commun. 2015, 6, 7253. doi:10.1038/ncomms8253

  29. [29]

    Two-step crystallization and solid–solid transitions in binary colloidal mixtures

    Fang, H.; Hagan, M.F.; Rogers, W.B. Two-step crystallization and solid–solid transitions in binary colloidal mixtures. Proc. Natl. Acad. Sci. 2020, 117, 27927-27933. doi: 10.1073/pnas.2008561117

  30. [30]

    Self- assembly of photonic crystals by controlling the nucleation and growth of DNA-coated colloids

    Hensley, A.;Jacobs, W.M.; Rogers, W.B. Self- assembly of photonic crystals by controlling the nucleation and growth of DNA-coated colloids. Proc. Natl. Acad. Sci. 2022, 119, e2114050118. doi.org/10.1073/pnas.2114050118

  31. [31]

    Integrated DNA Technologies (IDT) provides tailored DNA sequences with DBCO modifications ont he 3’ or 5’ end: https://www.idtdna.com/pages/education/decoded/ article/need-a-non-standard-modification

  32. [32]

    Programmable autonomous synthesis of single-stranded DNA Nature Chemistry 2018, 10, 155-164

    Kishi, J.Y.; Schaus, T.E.; Gopalkrishnan, N.; Xuan, F.; Yin, P. Programmable autonomous synthesis of single-stranded DNA Nature Chemistry 2018, 10, 155-164. doi:10.1038/nchem.2872

  33. [33]

    Real-time kinetics and high-resolution melt curves in single-molecule digital LAMP to differentiate and study specific and non-specific amplification

    Rolando, J.C.; Jue, E.; Barlow, J.T.; Ismag- ilov, R.F. Real-time kinetics and high-resolution melt curves in single-molecule digital LAMP to differentiate and study specific and non-specific amplification. Nucleic Acids Res. 2020, 48, e42. doi:10.1093/nar/gkaa099

  34. [34]

    Ab initio synthesis by DNA polymerases

    Zyrina, N.V.; Antipova, V.N.; Zheleznaya, L.A. Ab initio synthesis by DNA polymerases. FEMS Micro- biology Letters 2014, 351, 1–6. doi:10.1111/1574- 6968.12326

  35. [35]

    Catalytic DNA Polymerization Can Be Expedited by Active Product Release

    Moerman, P.G.; Gavrilov, M.; Ha, T.J.; Schul- man, R. Catalytic DNA Polymerization Can Be Expedited by Active Product Release. doi:10.26434/chemrxiv-2022-3k98v

  36. [36]

    Tong, X.; Smith, L. M. Solid-Phase Method for the Purification of DNA Sequencing Re- actions. Anal. Chem. 1992, 64, 2672-2677. doi:10.1021/ac00046a004

  37. [37]

    Sim- ple Quantitative Model for the Reversible Associa- tion of DNA Coated Colloids.Phys

    Dreyfus, R.; Leunissen, M.E.; Sha, R.; Tkachenko, R.V.; Seeman, N.C.; Pine, D.J.; Chaikin, P.M. Sim- ple Quantitative Model for the Reversible Associa- tion of DNA Coated Colloids.Phys. Rev. Lett. 2009, 102, 048301. doi:10.1103/PhysRevLett.102.048301 8

  38. [38]

    DNA-functionalized colloids: Physical properties and applications

    Geerts, N.;Eiser, E. DNA-functionalized colloids: Physical properties and applications. Soft Matter 6, 4647-4660. doi:10.1039/C001603A

  39. [39]

    SantaLucia, J. Jr. A unified view of polymer, dumb- bell, and oligonucleotide DNA nearest-neighbor thermodynamics. Proc. Natl. Acac. Sci. USA 1998, 95, 1460-1465. doi:10.1073/pnas.95.4.1460

  40. [40]

    LASIC: Light Activated Site-Specific Conjugation of Native IgGs

    Hui, J.Z.; Tamsen, S.; Song, Y.; Tsourkas, A. LASIC: Light Activated Site-Specific Conjugation of Native IgGs. Bioconjug Chem. Bioconjug. Chem. 2015 19, 1456-60. doi:10.1021/acs.bioconjchem.5b00275

  41. [41]

    Self-assembly of finite- sized colloidal aggregates

    Jana, P.K.; Mognetti, B.M. Self-assembly of finite- sized colloidal aggregates. Soft Matter 2020, 16, 5915-5924. doi:10.1039/D0SM00234H

  42. [42]

    Parvez, M.; Zanjani, M.B.; Synthetic Self-Limiting Structures Engineered with Defective Colloidal Clusters. Adv. Funct. Mater. 2020, 30, 2003317. doi:10.1002/adfm.202003317

  43. [43]

    Multifarious assembly mixtures: Sys- tems allowing retrieval of diverse stored struc- tures

    Murugan, A.; Zeravcic, Z.; Brenner, M.P.; Leibler, S. Multifarious assembly mixtures: Sys- tems allowing retrieval of diverse stored struc- tures. Proc. Acad. Natl. Sci. 2015, 112, 54-59. doi:10.1073/pnas.1413941112

  44. [44]

    Polygamous Particles

    Wu, K.; Feng, L.; Sha, R.; Chaikin, P. Polygamous Particles. Proc. Acad. Natl. Sci. 2012, 106, 18731- 18736. doi:10.1073/pnas.1207356109

  45. [45]

    Emergence of Multiscale Dynamics in Col- loidal Gels

    Cho, J.H.; Cerbino, R.; Bischofberger, I. Emergence of Multiscale Dynamics in Col- loidal Gels. Phys. Rev. Lett. 2020, 124, 08800. doi:10.1103/PhysRevLett.124.088005

  46. [46]

    Colloidal Nanocrystal Gels from Thermodynamic Principles

    Sherman, Z.M.; Green, A.M.; Howard, M.P.; Anslyn, E.V.; Truskett, T.M.; Milliron, D.J. Colloidal Nanocrystal Gels from Thermodynamic Principles. Acc. Chem. Res 2021, 54, 798–807. doi:10.1021/acs.accounts.0c00796

  47. [47]

    Life and death of colloidal bonds control the rate-dependent rheology of gels

    Nabizadeh, M.; Jamali, S. Life and death of colloidal bonds control the rate-dependent rheology of gels. Nat. Comm. 2021, 12, 4274. doi:10.1038/s41467- 021-24416-x

  48. [48]

    Com- paring whole genomes using DNA microarrays

    Gresham, D.; Dunham, M.J.; Bodstein, D. Com- paring whole genomes using DNA microarrays. Nat. Rev. Genet. 2008, 9, 291–302. doi:10.1038/nrg2335

  49. [49]

    Dissipative Self-Assembly Driven by the Consumption of Chemical Fuels

    De, S.; Klajn, R. Dissipative Self-Assembly Driven by the Consumption of Chemical Fuels. Adv. Mater. 2018, 30, 1706750. doi:10.1002/adma.201706750

  50. [50]

    Out-of-Equilibrium Col- loidal Assembly Driven by Chemical Reaction Networks

    Van Ravensteijn, B.G.P.;Voets, I.K.; Kegel, W.K.; Eelkema, R. Out-of-Equilibrium Col- loidal Assembly Driven by Chemical Reaction Networks. Langmuir 2020, 36, 10639–10656. doi:10.1021/acs.langmuir.0c01763 9