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The biosorption of Cr(VI) ions by dried biomass obtained from a chromium-resistant bacterium

Paul Fabrice NGUEMA,Zejiao LUO,Jingjing LIAN

Frontiers of Chemical Science and Engineering 2014, Volume 8, Issue 4,   Pages 454-464 doi: 10.1007/s11705-014-1456-4

Abstract: The biosorption potential of many different kinds of biomaterials has been widely studied. However, there is little data on the biosorption mechanism of Cr(VI) by dried biomass. So the bio-removal of Cr(VI) ions from aqueous solutions was investigated using dried biomass from a chromium-resistant bacterium. The bacterium was isolated from dewatered sludge samples that were obtained from a sewage treatment plant. Equilibrium and kinetic experiments were performed at different metal concentrations, pH values, and biosorbents dosages. The biomass was characterized using scanning electron microscopy and energy-dispersive X-ray spectroscopy. The functional groups in the biomass which may play a role in the biosorption process were identified by Fourier transform infrared spectroscopy. The biosorption process was found to be highly pH dependent and the optimum pH for the adsorption of Cr(VI) was 2.0±0.3 at 30±2 °C. The experimental data fit well with Langmuir and Freundlich models as well as a pseudo-second order kinetic model. The mechanism for the biosorption was also studied by fitting the kinetic data with an intra-particle diffusion model and a Boyd plot. External mass transfer was found to be the rate-determining step for the adsorption process. Biosorption could be an alternative mechanism besides bio-oxidation and bio-reduction for the bioremediation of heavy metals.

Keywords： Cr(VI)     biomass     <i>Bacillus cereus i>Pf-1     biosorption capacity     biosorbents    

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Chromium phytoextraction and physiological responses of the hyperaccumulator Swartz to plant growth-promoting rhizobacterium inoculation

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 1, doi: 10.1007/s11783-023-1609-0

Abstract:

● Improved Cr phytoextration efficiency was achieved by <i>B. cereusi> inoculation.

Keywords： Hexavalent chromium     Hyperaccumulator     Rhizobacteria     <i>Leersia hexandrai> Swartz     <i>Bacillus cereusi>     Consortia    

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Combination of ARTP mutagenesis and color-mediated high-throughput screening to enhance 1-naphthol yield

Chenggang Qiu, Alei Zhang, Sha Tao, Kang Li, Kequan Chen, Pingkai Ouyang

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 5,   Pages 793-801 doi: 10.1007/s11705-019-1876-2

Abstract: Strain QCG of the aerobic bacteria is capable of producing 1-naphthol from naphthalene, this strainStrain QCG was mutagenized to enhance 1-naphthol production, using atmospheric and room temperature plasmaThe optimal mutant strain QCG4 produced 19.58±0.34 mg∙L 1-naphthol from naphthalene that was 47.32%In addition, the optimal conditions for 1-naphthol production via whole-cell catalysis of strain QCG4naphthol, i.e., the mutant strain produces a 2.1-fold higher yield compared to the original strain.

Keywords： <i>Bacillus cereusi> QCG     naphthalene     1-naphthol     ARTP mutagenesis     high-throughput screening     4-aminoantipyrine    

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Genomic and metabolomic analysis of with enhanced poly--glutamic acid production through atmospheric and room temperature plasma mutagenesis

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 12,   Pages 1751-1760 doi: 10.1007/s11705-022-2211-x

Abstract: However, the ability of natural strains to produce poly-<i>γi>-glutamic acid is low.Bacillus licheniformisi> CGMCC 2876, and a mutant strain M32 with an 11% increase in poly-<i>γi>-synthetase associated with poly-<i>γi>-glutamic acid metabolic pathways.The maximum poly-<i>γi>-glutamic acid yield of 14.08 g·L–1 was finally reached with 30 g·L–1 glutamate.

Keywords： ARTP mutagenesis     <i>Bacillus licheniformisi>     poly-<i>γi>-glutamic acid     metabolomics    

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Electroactivity of the magnetotactic bacteria AMB-1 and MSR-1

Frontiers of Environmental Science & Engineering 2023, Volume 18, Issue 4, doi: 10.1007/s11783-024-1808-3

Abstract:

● The first study of electrochemically active magnetotactic bacteria.

Keywords： Magnetotactic bacteria     <i>Magnetospirillum magneticumi>     <i>Magnetospirillum gryphiswaldensei>    

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Physicochemical Properties and Bioactivities of Rice Beans Fermented by <i>Bacillus amyloliquefaciensi> Article

Shan Wu,  Shuai Lu, Jun Liu, Shaoqing Yang, Qiaojuan Yan, Zhengqiang Jiang

Engineering 2021, Volume 7, Issue 2,   Pages 219-225 doi: 10.1016/j.eng.2020.10.010

Abstract: physicochemical properties and bioactivities of rice beans (Vigna umbellata) fermented by Bacillusfermentation conditions, the fibrinolytic activity reached a maximum of 78.0 FU·g−1 (4890 IU·g−1, fibrin plate method FU: fibrin degradation unit).per 100 g), as well as the superoxide dismutase activity (from 55.3 to 263.6 U·g−1Bacillus amyloliquefaciens may serve as a functional food with potential

Keywords： Solid-state fermentation     Rice beans     <i>Bacillus amyloliquefaciensi>     Antithrombotic activity     Antioxidant    

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<i>RR1i> and <i>RR2i> gene deletion affects the immunogenicity of a live attenuated pseudorabies

Shijun YAN,He YAN,Chaolin ZHANG,Tongyan WANG,Qingyuan YANG,Zhe SUN,Yan XIAO,Feifei TAN,Xiangdong LI,Kegong TIAN

Frontiers of Agricultural Science and Engineering 2016, Volume 3, Issue 1,   Pages 81-86 doi: 10.15302/J-FASE-2016088

Abstract: As virulence-determining genes, and encode the small subunit and large subunit of viral ribonucleotide reductase (RR) in pseudorabies virus which have been extensively studied in mice. However, their role in pigs has not been adequately investigated. In this study, we deleted and genes based on a / / triple gene-deleted pseudorabies virus and tested its efficacy in pigs as a vaccine candidate. The rescued virus showed similar growth properties and plaque size as its parent strain. In an animal study, the virus could elicit humoral immune responses shown by generation of gB-specific antibodies and virus neutralizing antibodies. However, vaccination could not provide protection against virulent pseudorabies virus challenge since vaccinated pigs showed clinical pseudorabies-specific syndromes. The deficiency in protection may due to the generation of late and low levels of gB antibodies and virus neutralizing antibodies.

Keywords： pseudorabies virus     <i>RR1i> and <i>RR2i>     ribonucleotide reductase     vaccine candidate    

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Novel variants in LAMA3 and COL7A1 and recurrent variant in KRT5 underlying epidermolysis bullosa in

Frontiers of Medicine 2022, Volume 16, Issue 5,   Pages 808-814 doi: 10.1007/s11684-021-0878-x

Abstract: Chinese families with EB, and eight variants including a novel nonsense variant (c.47G>A, p.W16*) in <i>LAMA3i>, a known recurrent variant (c.74C>T, p.P25L) in <i>KRT5i>, 2 novel (c.2531T>A, p.V844E; cCOL7A1 i>were detected.Notably, this study identified a nonsense variant in <i>LAMA3i> that causes EB within the Chinese populationand revealed that this variant resulted in a reduction in <i>LAMA3i> mRNA and protein expression levels

Keywords： epidermolysis bullosa     <i>LAMA3i>     <i>COL7A1i>     <i>KRT5i>     Chinese families    

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<i>NES1i>/<i>KLK10i> and <i>hNISi> gene therapy enhanced iodine-131 internal radiation in PC3 proliferation

Jiajia Hu, Wenbin Shen, Qian Qu, Xiaochun Fei, Ying Miao, Xinyun Huang, Jiajun Liu, Yingli Wu, Biao Li

Frontiers of Medicine 2019, Volume 13, Issue 6,   Pages 646-657 doi: 10.1007/s11684-018-0643-y

Abstract: , we supposed to have an “enhanced firepower” effect by combining overexpressed gene therapy and Itomography/computed tomography (micro-PET/CT) imaging showed that the combined gene therapy and Ithat via inhibition of expression, overexpressed might enhance the effect of radiation therapy of I

Keywords： androgen-independent prostate cancer     normal epithelial cell-specific 1/kallikrein 10     sodium/iodide symporter    

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Effect of calcium lactate on compressive strength and self-healing of cracks in microbial concrete

Kunamineni VIJAY, Meena MURMU

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 3,   Pages 515-525 doi: 10.1007/s11709-018-0494-2

Abstract: In other samples, cultured with a concentration of 1×10 cells/mL was mixed with concrete, to study

Keywords： calcium lactate     <i>bacillus subtilisi>     compressive strength     self-healing of cracks    

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Successful production of an all-female common carp (<i>Cyprinus carpioi> L.) population using <i>cyp17a1i>-deficient neomale carp Article

Gang Zhai,Tingting Shu,Kuangxin Chen,Qiyong Lou,Jingyi Jia,Jianfei Huang,Chuang Shi,Xia Jin,Jiangyan He,Donghuo Jiang,Xueqiao Qian,Wei Hu,Zhan Yin,

Engineering 2022, Volume 8, Issue 1,   Pages 181-189 doi: 10.1016/j.eng.2021.03.026

Abstract: Male and female heterozygous cyp17a1-deficient common carp were first obtained using the clusteredAn all-male phenotype for homozygous cyp17a1-deficient carp, regardless of the individuals&rsquoour laboratory was used to screen the neomale carp population with the XX genotype from the cyp17a1cyp17a1+/+ XX genotype)The average body weight of cyp17a1+/− XX females was higher by 6.60% (8 mpf) and 32.66%

Keywords： Common carp     Sexual dimorphism     Growth     <i>cyp17a1i>     Sex steroids     All-female population    

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Roles of acid-producing bacteria in anaerobic digestion of waste activated sludge

Sijia Ai, Hongyu Liu, Mengjie Wu, Guangming Zeng, Chunping Yang

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 6, doi: 10.1007/s11783-018-1050-y

Abstract:

<i>Bacillus coagulansi> improved TCOD removal

The optimal inoculum concentration of <i>Bacilluscoagulans i>AFB-1 was 30%.

Keywords： Anaerobic digestion     Waste activated sludge     Acid-producing bacteria     <i>Bacillus coagulansi>    

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Deciphering the Origins of P1-Induced Power Losses in Cu(In<i>xi>,Ga1–<i>xi> Article

César Omar Ramírez Quiroz, Laura-Isabelle Dion-Bertrand, Christoph J. Brabec, Joachim Müller, Kay Orgassa

Engineering 2020, Volume 6, Issue 12,   Pages 1395-1402 doi: 10.1016/j.eng.2019.12.019

Abstract: hyperspectral high-resolution photoluminescence mapping is a powerful tool for the selection and optimiz1ationprocesses used for the patterning interconnections of subcells on Cu(Inx,Ga1-Specifically, by analyzing the standard P1 patterning line ablated before the CIGS deposition, we revealWe further rationalize the origins of this effect by comparing the topography of the P1 edge throughWe also investigate the laser-induced damage on P1 patterning lines performed after the deposition of

Keywords： Cu(Inx     Ga1-x)Se2     Cell-to-module efficiency gap     P1-induced power losses     Hyperspectral photoluminescence    

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<i>Salmonellai>-Delivered COBRA-HA1 Antigen Derived from H1N1 Hemagglutinin Sequences Elicits Broad-Spectrum Article

Ram Prasad Aganja, Amal Senevirathne, Chandran Sivasankar, John Hwa Lee

Engineering 2024, Volume 32, Issue 1,   Pages 42-57 doi: 10.1016/j.eng.2023.08.001

Abstract: antigen (COBRA) was used to generate a consensus sequence of the hemagglutinin globular head portion (HA1)Constructs carrying different HA1 regions were delivered into eukaryotic cells by SalmonellaSpecifically, constructs #1 and #5 increased the production of interferon-γ (IFN-γ) producingCD4+ and CD8+ T cells, skewing the response toward the T helper type 1 cell (Th1This approach can effectively combat seasonal H1N1 influenza strains and potential pandemic outbreaks

Keywords： COBRA     Influenza A     <i>Salmonellai>     Vaccine     Broad spectral protection    

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Construction of a CaHPO4-PGUS1 hybrid nanoflower through protein-inorganic self-assembly, and its application

Tian Jiang, Yuhui Hou, Tengjiang Zhang, Xudong Feng, Chun Li

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 3,   Pages 554-562 doi: 10.1007/s11705-019-1834-z

Abstract: Using site-directed mutagenesis, we previously obtained a variant of -glucuronidase from Li-3 (PGUS1)In this study, a facile method was established to prepare a CaHPO -PGUS1 hybrid nanoflower for enzymeUnder optimal conditions, 1.2 mg of a CaHPO -PGUS1 hybrid nanoflower precipitate with 71.2% immobilizationand scanning electron microscope results showed that the enzyme was encapsulated in the CaHPO -PGUS1Moreover, the thermostability of the CaHPO -PGUS1 hybrid nanoflower at 55°C was improved, and its half-life

Keywords： <i>βi>-glucuronidase     enzyme-inorganic hybrid nanoflower     biotransformation     glycyrrhizin     glycyrrtinicacid 3-<i>Oi>-mono-<i>βi>-D-glucuronide    

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Title Author Date Type Operation

The biosorption of Cr(VI) ions by dried biomass obtained from a chromium-resistant bacterium

Paul Fabrice NGUEMA,Zejiao LUO,Jingjing LIAN

Journal Article

Chromium phytoextraction and physiological responses of the hyperaccumulator Swartz to plant growth-promoting rhizobacterium inoculation

Journal Article

Combination of ARTP mutagenesis and color-mediated high-throughput screening to enhance 1-naphthol yield

Chenggang Qiu, Alei Zhang, Sha Tao, Kang Li, Kequan Chen, Pingkai Ouyang

Journal Article

Genomic and metabolomic analysis of with enhanced poly--glutamic acid production through atmospheric and room temperature plasma mutagenesis

Journal Article

Electroactivity of the magnetotactic bacteria AMB-1 and MSR-1

Journal Article

Physicochemical Properties and Bioactivities of Rice Beans Fermented by <i>Bacillus amyloliquefaciensi>

Shan Wu,  Shuai Lu, Jun Liu, Shaoqing Yang, Qiaojuan Yan, Zhengqiang Jiang

Journal Article

<i>RR1i> and <i>RR2i> gene deletion affects the immunogenicity of a live attenuated pseudorabies

Shijun YAN,He YAN,Chaolin ZHANG,Tongyan WANG,Qingyuan YANG,Zhe SUN,Yan XIAO,Feifei TAN,Xiangdong LI,Kegong TIAN

Journal Article

Novel variants in LAMA3 and COL7A1 and recurrent variant in KRT5 underlying epidermolysis bullosa in

Journal Article

<i>NES1i>/<i>KLK10i> and <i>hNISi> gene therapy enhanced iodine-131 internal radiation in PC3 proliferation

Jiajia Hu, Wenbin Shen, Qian Qu, Xiaochun Fei, Ying Miao, Xinyun Huang, Jiajun Liu, Yingli Wu, Biao Li

Journal Article

Effect of calcium lactate on compressive strength and self-healing of cracks in microbial concrete

Kunamineni VIJAY, Meena MURMU

Journal Article

Successful production of an all-female common carp (<i>Cyprinus carpioi> L.) population using <i>cyp17a1i>-deficient neomale carp

Gang Zhai,Tingting Shu,Kuangxin Chen,Qiyong Lou,Jingyi Jia,Jianfei Huang,Chuang Shi,Xia Jin,Jiangyan He,Donghuo Jiang,Xueqiao Qian,Wei Hu,Zhan Yin,

Journal Article

Roles of acid-producing bacteria in anaerobic digestion of waste activated sludge

Sijia Ai, Hongyu Liu, Mengjie Wu, Guangming Zeng, Chunping Yang

Journal Article

Deciphering the Origins of P1-Induced Power Losses in Cu(In<i>xi>,Ga1–<i>xi>

César Omar Ramírez Quiroz, Laura-Isabelle Dion-Bertrand, Christoph J. Brabec, Joachim Müller, Kay Orgassa

Journal Article

<i>Salmonellai>-Delivered COBRA-HA1 Antigen Derived from H1N1 Hemagglutinin Sequences Elicits Broad-Spectrum

Ram Prasad Aganja, Amal Senevirathne, Chandran Sivasankar, John Hwa Lee

Journal Article

Construction of a CaHPO4-PGUS1 hybrid nanoflower through protein-inorganic self-assembly, and its application

Tian Jiang, Yuhui Hou, Tengjiang Zhang, Xudong Feng, Chun Li

Journal Article