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Stable Isotopes (ISOTEC)

 Nanopatterning and Molecular Self-Assembly

Micro and Nanoelectronics
 



The development of self- and directed-assembly techniques is key for the fabrication of molecularly precise structures for applications ranging from biocompatible and/or bioactive systems to microelectronics.

These applications now demand patterned surface structures with ever-smaller features down to the sub-100 nm scale; however, traditional lithographic techniques such as photolithography cannot reproducibly fabricate such structures with molecular-scale organization. By employing a library of molecules with a spectrum of intermolecular-interaction strengths in conjunction with a variety of thin-film-processing techniques, it is becoming possible to fabricate nanometer-sized surface features with molecular precision.

Basics of the self-assembly process are illustrated in the Webinar “ Molecular Self-Assembly” from Sigma-Aldrich and Asemblon. The most recent advances in the field are discussed in the article “Selecting and Driving Monolayer Structures through Tailored Intermolecular Interactions “ by a group of scientists from Pennsylvania State University led by Professor P. S. Weiss and Professor A.M. Andrews.

Sigma-Aldrich materials specifically tailored for Nanopatterning and Molecular Self-Assembly:
6-(Ferrocenyl)hexanethiol for Self-Assembly on Gold Surfaces

  New Products
  Thiols for Self Assembled Monolayers and Organic Electronics
  Functionalized Thiols
  Surfactants

New Products
Product #  Product Name Add to Cart
686506 m-Carborane-9-yl thiol
685437 (12-Phosphonododecyl)phosphonic acid, 97%
682527 6-(Ferrocenyl)hexanethiol, 96%
674397 11-Amino-1-undecanethiol, Hydrochloride, 99%
674311 11-Mercaptoundecylphosphoric acid, 99%
674230 11-Mercaptoundecyl Trifluroacetate, 99%
678031 11-Phosphonoundecanoic acid, 96%
Thiols for Self Assembled Monolayers and Organic Electronicsback to top
Linear Thiols 
Product #  Product Name Add to Cart
16494 3,3,4,4,5,5,6,6,6-Nonafluoro-1-hexanethiol
P50757 1-Propanethiol 99%
112925 1-Butanethiol 99%
P7908 1-Pentanethiol 98%
234192 1-Hexanethiol 95%
H4506 1-Heptanethiol 95%
471836 1-Octanethiol ≥98.5%
N31400 1-Nonanethiol 95%
D1602 1-Decanethiol 96%
510467 1-Undecanethiol 98%
471364 1-Dodecanethiol ≥98%
87193 1-Tetradecanethiol purum, ≥98.0% (GC)
516295 1-Pentadecanethiol 98%
H7637 1-Hexadecanethiol technical grade, 92%
O1858 1-Octadecanethiol 98%
Branched and Cyclic Thiols back to top
Product #  Product Name Add to Cart
109207 2-Methyl-2-propanethiol 99%
659452 1-Adamantanethiol 95%
102911 2-Butanethiol 98%
319708 Cyclopentyl mercaptan 98%
C105600 Cyclohexanethiol 97%
115924 3-Methyl-1-butanethiol 97%
471585 tert-Dodecylmercaptan 98.5%
T32808 Thiophenol 97%
252581 2-Phenylethanethiol 98%
112917 2-Methyl-1-propanethiol 92%, technical grade
171034 tert-Nonyl mercaptan, mixture of isomers ≥97%
Dithiols and Trithiols back to top
Product #  Product Name Add to Cart
147273 1,4-Benzenedimethanethiol, 98%
B85404 1,4-Butanedithiol 97%
264695 2,3-Butanedithiol ≥97%
398020 1,2-Ethanedithiol technical grade, ≥90%
465178 2,2′-(Ethylenedioxy)diethanethiol 95%
H12005 1,6-Hexanedithiol 96%
N29805 1,9-Nonanedithiol 95%
O3605 1,8-Octanedithiol ≥97%
242551 1,5-Pentanedithiol 96%
P50609 1,3-Propanedithiol 99%
Functionalized Thiolsback to top
Hydroxy 
Product #  Product Name Add to Cart
451878 4-Mercapto-1-butanol 95%
451088 6-Mercapto-1-hexanol 97%
405736 3-Mercapto-1-propanol 95%
447528 11-Mercapto-1-undecanol 97%
328375 1-Mercapto-2-propanol 95%
264792 3-Mercapto-2-butanol, mixture of isomers 97%
Acid back to top
Product #  Product Name Add to Cart
448303 16-Mercaptohexadecanoic acid 90%
M5801 3-Mercaptopropionic acid ≥99%
450561 11-Mercaptoundecanoic acid 95%
381454 Butyl 3-mercaptopropionate 98%
307106 Ethyl 3-mercaptopropionate 99%
108987 Methyl 3-mercaptopropionate 98%
Silanes back to top
Product #  Product Name Add to Cart
446173 3-(Dimethoxymethylsilyl)-1-propanethiol 95%
175617 (3-Mercaptopropyl)trimethoxysilane 95%
Surfactantsback to top
Ionic Surfactants 
Product #  Product Name Add to Cart
420522 ALKANOL® 189-S surfactant
420530 ALKANOL® XC surfactant
433152 Allyl alcohol 1,2-butoxylate-block-ethoxylate, ammonium sulfate end-capped Solution 80 wt. % in propylene glycol
221570 Sodium 1-decanesulfonate 98%
385883 4-(2,3-Dihydroxypropyl) 2-(2-methylene-4,4-dimethylpentyl)succinate Potassium salt Solution 40 wt. % in water
472581 N,N-Dimethyl-N-[3-(sulfooxy)propyl]-1-decanaminium hydroxide Inner salt
472603 N,N-Dimethyl-N-[3-(sulfooxy)propyl]-1-nonanaminium hydroxide Inner salt
D201170 Dioctyl sulfosuccinate Sodium salt 96%
468169 N-Ethyl-N-[(heptadecafluorooctyl)sulfonyl]glycine Potassium salt Solution 42 wt. % in water/2-butoxyethanol
463299 Glycolic acid ethoxylate 4-tert-butylphenyl ether average Mn ~380
463221 Glycolic acid ethoxylate lauryl ether average Mn ~360
463248 Glycolic acid ethoxylate lauryl ether average Mn ~460
463256 Glycolic acid ethoxylate lauryl ether average Mn ~690
463302 Glycolic acid ethoxylate 4-nonylphenyl ether average Mn ~600
463264 Glycolic acid ethoxylate oleyl ether average Mn ~410
463272 Glycolic acid ethoxylate oleyl ether average Mn ~540
463280 Glycolic acid ethoxylate oleyl ether average Mn ~700
468177 [3-((((Heptadecafluorooctyl)sulfonyl)amino)propy)]trimethylammonium iodide Solution 42 wt. % in 2-propanol/water
473197 Poly(ethylene glycol) 4-nonylphenyl 3-sulfopropyl ether Potassium salt
289957 Sodium dodecylbenzenesulfonate technical grade
862010 Sodium dodecyl sulfate 98%
421545 ZONYL® 7950
421375 ZONYL® FSA fluorosurfactant 25 wt. % Li carboxylate salt in water/isopropyl alcohol (1:1)
421391 ZONYL® FSE fluorosurfactant 14 wt. % in water: ethylene glycol (62:24)
421464 ZONYL® FSP fluorosurfactant
421472 ZONYL® UR fluorosurfactant
Nonionic Surfactants-Brand Name back to top
Product #  Product Name Add to Cart
856576 Adogen® 464
420522 ALKANOL® 189-S surfactant
420549 ALKANOL® 6112 surfactant
420530 ALKANOL® XC surfactant
235989 Brij® 30 average Mn ~362
16005 Brij® 35 P BioChemika, main component: tricosaethylene glycol dodecylether
16005 Paraformaldehyde puriss., meets analytical specification of DAC, 95-100.5%
388831 Brij® 52 average Mn ~330
388858 Brij® 56 average Mn ~683
P5884 Brij® 58 average Mn ~1124
16006 Brij® 72 main component: diethylene glycol octadecyl ether
388890 Brij® 76 average Mn ~711
P4019 Brij® 78
16008 Brij® 78 P main component: eicosaethylene glycol octadecyl ether
16009 Brij® 92V main component: diethylene glycol oleyl ether
388866 Brij® 93 average Mn ~357
16011 Brij® 96 V main component : Decaethylene glycol oleyl ether
431281 Brij® 97 average Mn ~709
436240 Brij® 98 average Mn ~1,150
466387 Brij® 700 average Mn ~4,670
238562 Igepal® CA-210 average Mn ~294
238570 Igepal® CA-520 average Mn ~427
56741 Igepal CA 630 BioChemika
238589 Igepal® CA-720 average Mn ~735
238635 Igepal® CO-210 average Mn ~308
238643 Igepal® CO-520
542334 Igepal® CO-630 average Mn ~617
238651 Igepal® CO-720 average Mn ~749
238678 Igepal® CO-890 average Mn ~1,982
238686 Igepal® CO-990 average Mn ~4,626
238694 Igepal® DM-970
421294 MERPOL® DA surfactant 60 wt. % in water/isobutanol (ca. 50:50)
421308 MERPOL® HCS surfactant
421324 MERPOL® LFH surfactant
421332 MERPOL® OJ surfactant
421340 MERPOL® SE surfactant
421359 MERPOL® SH surfactant
421286 MERPOL® A surfactant
S6635 Span® 20
S7010 Span® 60
S6760 Span® 80
S7135 Span® 85
521078 Tergitol® NP-9
234729 Triton® X-100
282103 Triton® X-100 reduced
303135 Triton® N-101, reduced reduced
369349 Triton® X-114
531812 Triton® X-114 reduced, ≥99%
300411 Triton® X-114 reduced
303127 Triton® X-405 reduced
234737 Triton® X-405 Solution 70 wt. % in water
494755 Triton® SP-135
494763 Triton® SP-190
274348 TWEEN® 20 average Mn ~1,228
466905 Polyoxyethylene (80) sorbitan monolaurate Solution 72 wt. % in water
P1504 TWEEN® 40 viscous liquid
P1629 TWEEN 60
274364 TWEEN® 80 average Mn ~1,310
P4634 TWEEN® 85
421413 Zonyl FSN fluorosurfactant
421421 ZONYL FSN-100
421448 ZONYL FSO fluorosurfactant
421456 ZONYL FSO-100
Additional Nonionic Surfactants back to top
Product #  Product Name Add to Cart
461202 2,4,7,9-Tetramethyl-5-decyne-4,7-diol ethoxylate average Mn ~1,200, average Mw ~1,250
461180 2,4,7,9-Tetramethyl-5-decyne-4,7-diol ethoxylate average Mn ~380, average Mw ~395
461199 2,4,7,9-Tetramethyl-5-decyne-4,7-diol ethoxylate average Mn ~670, average Mw ~700
278386 2,4,7,9-Tetramethyl-5-decyne-4,7-diol, mixture of (±) and meso 98%
222623 2,5-Dimethyl-3-hexyne-2,5-diol 98%
452602 8-Methyl-1-nonanol propoxylate-block-ethoxylate
433128 Allyl alcohol 1,2-butoxylate-block-ethoxylate HLB 6.9
433136 Allyl alcohol 1,2-butoxylate-block-ethoxylate HLB 9.9
435546 Ethylenediamine tetrakis(ethoxylate-block-propoxylate) tetrol average Mn ~7,200
435554 Ethylenediamine tetrakis(ethoxylate-block-propoxylate) tetrol average Mn ~8,000
435538 Ethylenediamine tetrakis(propoxylate-block-ethoxylate) tetrol average Mn ~15,000
435511 Ethylenediamine tetrakis(propoxylate-block-ethoxylate) tetrol average Mn ~3,600
192023 Poly(acrylic acid) Partial sodium salt Solution average Mw ~2,000 by GPC, 61-65 wt. % in water
436364 Poly(acrylic acid) Partial sodium salt particle size <1000 μm (99%)
468185 Poly(ethylene glycol) 2-[ethyl[(heptadecafluorooctyl)sulfonyl]amino]ethyl ether
468193 Poly(ethylene glycol) 2-[ethyl[(heptadecafluorooctyl)sulfonyl]amino]ethyl methyl ether
462977 Poly(ethylene glycol) myristyl tallow ether average Mn ~3,000
473200 Poly(ethylene glycol) n-alkyl 3-sulfopropyl ether Potassium salt
435406 Poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol) average Mn ~1,100
435414 Poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol) average Mn ~1,900
435422 Poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol) average Mn ~2,000
435430 Poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol) average Mn ~2,800
373850 Poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol) average Mn ~2,800
435449 Poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol) average Mn ~2,900
435457 Poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol) average Mn ~4,400
435465 Poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol) average Mn ~5,800
412325 Poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol) average Mn ~8,400
547743 Poly(hexafluoropropylene oxide) monocarboxylic acid, chloro terminated average Mn ~500
435473 Poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol) average Mn ~2,000
435481 Poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol) average Mn ~2,700
435503 Poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol) average Mn ~3,300
457981 Poly[dimethylsiloxane-co-methyl(3-hydroxypropyl)siloxane]-graft-poly(ethylene/propylene glycol)
458961 Polyethylene-block-poly(ethylene glycol) average Mn ~1,400
459003 Polyethylene-block-poly(ethylene glycol) average Mn ~575
458996 Polyethylene-block-poly(ethylene glycol) average Mn ~875
458988 Polyethylene-block-poly(ethylene glycol) average Mn ~920
466395 Polyoxyethylene sorbitan tetraoleate
466409 Polyoxyethylene sorbitol hexaoleate
466417 Polyoxyethylene(12) tridecyl ether Mixture of C11 to C14 iso-alkyl ethers with C13 iso-alkyl predominating.
466875 Polyoxyethylene(18) tridecyl ether Mixture of C11 to C14 iso-alkyl ethers with C13 iso-alkyl predominating.
466883 Polyoxyethylene(6) tridecyl ether Mixture of C11 to C14 iso-alkyl ethers with C13 iso-alkyl predominating.
388920 Sorbitan monopalmitate
S3386 Sorbitan sesquioleate
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