Near-IR squaraine dye–loaded gated periodic mesoporous organosilica for photo-oxidation of phenol in a continuous-flow device

Borah, Parijat; Sreejith, Sivaramapanicker; Anees, Palapuravan; Menon, Nishanth Venugopal; Kang, Yuejun; Zhao, Yanli

doi:10.1126/sciadv.1500390

Cited by 25 publications

(17 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We also investigated the potential use of our approach for the synthesis of adaptive composites or responsive soft devices . The cascade reaction system based on MSN/TA–Cu II was further coupled with an acid‐degradable hydrogel consisting of polyvinyl alcohol (PVA) and borax.…”

Section: Figurementioning

confidence: 99%

“…Owing to the possibility to further functionalize TA with thiols, we believe that it should be possible to form functionalized nanocontainers from our nanocontainers in the future. According to the strategy described herein, judicious combinations of functionalities and materials will lead to advances in adaptive composites and materials science …”

Section: Figurementioning

confidence: 99%

See 1 more Smart Citation

Signal‐Induced Release of Guests from a Photolatent Metal–Phenolic Supramolecular Cage and Its Hybrid Assemblies

et al. 2017

View full text Add to dashboard Cite

The coordination chemistry of plant polyphenols and metal ions can be used for coating various substrates and for creating modular superstructures. We herein explored this chemistry for the controlled release of guests from mesoporous silica nanoparticles (MSNs). The selective adsorption of tannic acids (TAs) on MSN silica walls opens the MSN mesoporous channels without disturbing mass transport. The channel may be closed by the coordination of TA with Cu ions. Upon exposure to light, photolysis of Trojan horse guests (photoacid generators, PAGs) leads to acid generation, which enables the release of payloads by decomposing the outer coordination shell consisting of TA and Cu . We also fabricated a modular assembly of MSNs on glass substrates. The photoresponsive release characteristics of the resulting film are similar to those of the individual MSNs. This method is a fast and facile strategy for producing photoresponsive nanocontainers by non-covalent engineering of MSN surfaces that should be suitable for various applications in materials science.

show abstract

Section: Figurementioning

confidence: 99%

Section: Figurementioning

confidence: 99%

Signal‐Induced Release of Guests from a Photolatent Metal–Phenolic Supramolecular Cage and Its Hybrid Assemblies

et al. 2017

View full text Add to dashboard Cite

show abstract

“…Interestingly,F E-SEM revealed that the MSN/TA-Cu II particles were still packed on the substrate after light exposure;t his was employed to decompose the metal complex (Figure 4d). [18,19,[37][38][39][40][41][42] Thec ascade reaction system based on MSN/TA-Cu II was further coupled with an acid-degradable hydrogel consisting of polyvinyl alcohol (PVA) and borax. This might allow them to keep their original arrangement.…”

Section: Angewandte Chemiementioning

confidence: 99%

“…[34] We also investigated the potential use of our approach for the synthesis of adaptive composites or responsive soft devices. [18,19,[37][38][39][40][41][42] Thec ascade reaction system based on MSN/TA-Cu II was further coupled with an acid-degradable hydrogel consisting of polyvinyl alcohol (PVA) and borax. Upon exposure to light, the PAGs triggered the decomposition of the TA-Cu II complexes as well as the gel network, resulting in as ignificant release of RB molecules and accelerated decomposition of the hydrogel in distilled water ( Figure 5).…”

Section: Angewandte Chemiementioning

confidence: 99%

“…[43] Owing to the possibility to further functionalize TA with thiols,w eb elieve that it should be possible to form functionalized nanocontainers from our nanocontainers in the future.A ccording to the strategy described herein, judicious combinations of functionalities and materials will lead to advances in adaptive composites and materials science. [18,19,[37][38][39][40][41][42]…”

Section: Angewandte Chemiementioning

confidence: 99%

See 1 more Smart Citation

Signal‐Induced Release of Guests from a Photolatent Metal–Phenolic Supramolecular Cage and Its Hybrid Assemblies

et al. 2017

View full text Add to dashboard Cite

show abstract

Degradability and Clearance of Silicon, Organosilica, Silsesquioxane, Silica Mixed Oxide, and Mesoporous Silica Nanoparticles

2017

View full text Add to dashboard Cite

The biorelated degradability and clearance of siliceous nanomaterials have been questioned worldwide, since they are crucial prerequisites for the successful translation in clinics. Typically, the degradability and biocompatibility of mesoporous silica nanoparticles (MSNs) have been an ongoing discussion in research circles. The reason for such a concern is that approved pharmaceutical products must not accumulate in the human body, to prevent severe and unpredictable side-effects. Here, the biorelated degradability and clearance of silicon and silica nanoparticles (NPs) are comprehensively summarized. The influence of the size, morphology, surface area, pore size, and surface functional groups, to name a few, on the degradability of silicon and silica NPs is described. The noncovalent organic doping of silica and the covalent incorporation of either hydrolytically stable or redox- and enzymatically cleavable silsesquioxanes is then described for organosilica, bridged silsesquioxane (BS), and periodic mesoporous organosilica (PMO) NPs. Inorganically doped silica particles such as calcium-, iron-, manganese-, and zirconium-doped NPs, also have radically different hydrolytic stabilities. To conclude, the degradability and clearance timelines of various siliceous nanomaterials are compared and it is highlighted that researchers can select a specific nanomaterial in this large family according to the targeted applications and the required clearance kinetics.

show abstract

Near-IR squaraine dye–loaded gated periodic mesoporous organosilica for photo-oxidation of phenol in a continuous-flow device

Abstract: A study of dye-loaded organosilica for photo-oxidation.

Cited by 25 publications

References 53 publications

Signal‐Induced Release of Guests from a Photolatent Metal–Phenolic Supramolecular Cage and Its Hybrid Assemblies

Signal‐Induced Release of Guests from a Photolatent Metal–Phenolic Supramolecular Cage and Its Hybrid Assemblies

Signal‐Induced Release of Guests from a Photolatent Metal–Phenolic Supramolecular Cage and Its Hybrid Assemblies

Degradability and Clearance of Silicon, Organosilica, Silsesquioxane, Silica Mixed Oxide, and Mesoporous Silica Nanoparticles

Contact Info

Product

Resources

About