Amino acid-based biohybrids for nano-shellization of individual desulfurizing bacteria

Jiang, Nan; Ying, Guoliang; Liu, Shao Yin; Shen, Ling; Hu, Jie; Dai, Ling; Yang, Xiao‐Yu; Su, Bao‐Lian

doi:10.1039/c4cc06323f

Cited by 26 publications

(13 citation statements)

References 24 publications

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“…The abundance of charged groups can effectively initiate the formation of the mineral shell, leading to the preservation of bioactivity . Although many artificial molecules have been exploited to modify organisms' surfaces, only a few have been utilized to construct material shells for organisms …”

Section: Biological Strategy For Organism Modificationmentioning

confidence: 99%

Biomineralization: From Material Tactics to Biological Strategy

et al. 2017

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Biomineralization is an important tactic by which biological organisms produce hierarchically structured minerals with marvellous functions. Biomineralization studies typically focus on the mediation function of organic matrices on inorganic minerals, which helps scientists to design and synthesize bioinspired functional materials. However, the presence of inorganic minerals may also alter the native behaviours of organic matrices and even biological organisms. This progress report discusses the latest achievements relating to biomineralization mechanisms, the manufacturing of biomimetic materials and relevant applications in biological and biomedical fields. In particular, biomineralized vaccines and algae with improved thermostability and photosynthesis, respectively, demonstrate that biomineralization is a strategy for organism evolution via the rational design of organism-material complexes. The successful modification of biological systems using materials is based on the regulatory effect of inorganic materials on organic organisms, which is another aspect of biomineralization control. Unlike previous studies, this study integrates materials and biological science to achieve a more comprehensive view of the mechanisms and applications of biomineralization.

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Section: Biological Strategy For Organism Modificationmentioning

confidence: 99%

Biomineralization: From Material Tactics to Biological Strategy

et al. 2017

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“…[2] Bacteria and yeast cells were also encapsulated with amino acid based self-repaired biohybrids to improve cellular communication and protection after the encapsulationp rocess. [3,4] In another study,the LbL cell encapsulation process wasused to stimulate calcium secretiono utside of the cellstop rovideamineral shell aroundt he cells. The calcium mineral shell induced the cells to enter the stationary phase and stopped their proliferation.T he cells also become inert in pure water owing to the lack of nutrients, but become active again even after one montho fs torage, whereas most of the bare cellsd ie.…”

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confidence: 99%

Boron Nitride Nanotubes and Layer‐By‐Layer Polyelectrolyte Coating for Yeast Cell Surface Engineering

2016

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The application of living microbial cells as molecular engines for av ariety of biotechnological applications includingc ell-based biosensing is an ongoing research effort. However,t here are significant difficulties to overcome such as the fragile structures of microbial cells and the weak efficiency of developed systems for detecting toxic agents in the environment. In this Communication, we demonstrate the interfacing of hydroxylated boron nitride nanotubes (BNNT-OHs) with live yeastc ell surfaces. BNNT-OHs were incorporated with polyelectrolytes (PEs) using layer-by-layer deposition onto live Saccharomyces cerevisiae cells. The PE-and BNNT-OH-coated yeast was characterized using spectroscopica nd imaging techniques( dynamic light scattering, FTIR, and SEM). Importantly,B NNT-OH-coated yeast cells werev iable after the surface modification with nanotubes. We believe that BNNT-OHs-functionalized yeast will find numerousapplications in biotechnology.Within the last decadel iving cell encapsulation has been exploited for various purposes. Several methods have been developedt oo btain nano-and microsized shells over cells, including an effective celle ncapsulation method based on the layer-by-layer (LbL) coating of the living cell surfacewith polyelectrolytes (PEs).[1] The fabrication of multilayered coatings is based on the electrostatic interactions of oppositely charged polyelectrolyte assemblies. The strong interaction of the oppositely charged PEs results in the formation of an anometerscale semipermeable soft shell. One of the mostp recious advantageso ft his technique is the efficient protectiono ft he cells against the harsh conditions of outer environments such as hazardouss olvents, extreme pH and unfavorable temperature. The biocompatible and nutrient-permeable coatings can be fabricated using non-toxic PEs as shell materials. In as tudy, cyanobacterium as photosynthetic organism was coated with mesoporouss ilica nanoshella nd biointerface layer (proteins). The proteins interact with polysaccharides of cell membrane and silica with electrostatic interaction using their amino and hydroxyl groups.T his bilayer structure over the cells increases their application yield in photosynthetic bioreactors.

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“…Controlling physicochemical properties of biointerfaces is a key factor to modulate the cell behavior on material surfaces for the design of high‐performance biomaterials, cell‐tissue constructs, and advanced cell culturing systems . Major approaches for the biointerface design have been concentrated on nanostructure fabrication and functional surface engineering .…”

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confidence: 99%

“…For example, DNAs and proteins can form weak interactions such as hydrogen bonding . This approach has been extended to mesoporous materials, nanofluids, drug‐release systems, and cell‐based devices Most importantly, the cooperative effect that allows combining two or more types of biomolecules integrates materials with significantly different physiochemical properties, facilitating biointerfaces with different structures and properties at the macroscopic or microscopic scale . Such a combination usually possesses unique hybrid properties which are rare in single discretely, neither in the incorporated components nor in the host matrixes.…”

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confidence: 99%

“…Such a combination usually possesses unique hybrid properties which are rare in single discretely, neither in the incorporated components nor in the host matrixes. For example, a bioinorganic cooperative effect can highly enhance stability and physicochemical property of Au@amino acid biohybrid layers around cells to form single cell bioreactors as the gold nanoparticles and amino acids cannot independently coat the cell surface . Furthermore, there are two features (multiple compositions and structures) based on the cooperative effect as applied to biointerfaces: diverse compositions can yield multiple functions .…”

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