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Physarum polycephalum-inspired adaptive optimization design of artificial microtubular networks

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Science China Chemistry 2025年

作者： Si-Min zeng Di-Wei Zheng Ting Pan Xing-Lan Ding Yun Zhang Chi-Hui Yang Si-Xue Cheng xian-Zheng Zhang Key Laboratory of Biomedical Polymers of Ministry of Education&Department of Chemistry Wuhan University

Natural biological microtubular networks have undergone adaptive evolutionary selection and may offer viable solutions to design challenges in artificial microtubular networks. The plasmodium of the slime mold Physarum polycephalum(P. polycephalum) extends continuously to form a protoplasmic microtubular network structure, directly connecting food *** simulations revealed that the formation of this adaptive P. polycephalum microtubular network could be captured by a mathematical algorithm. Inspired by the P. polycephalum microtubular networks, we propose an adaptive optimization design method for artificial microtubular networks. Specifically, we utilized hydrogels with biodegradable and tissue-adhesive properties to replicate the P. polycephalum microtubular networks via photomask. In Rhodamine B diffusion and glucosecatalyzed reaction experiments, we found that the P. polycephalum microtubular networks exhibited significantly enhanced efficiency compared to vascular and artificial networks. Furthermore, we demonstrated the potential for uric acid(UA) degradation of the hydrogels with a real P. polycephalum microtubular network loaded with urate oxidase(UOx) in a rodent model of hyperuricemia. And this network achieved more than double the effect of the artificial network. This underscores the potential of natural microtubular networks to replace artificial microtubular networks.

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Ultrasound-guided needle release plus corticosteroid injection of superficial radial nerve:A case report

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World Journal of Clinical Cases 2022年第4期10卷 1320-1325页

作者： zeng zeng Cong-xian Chen Department of Ultrasound Zhejiang Provincial People's HospitalHangzhou 310000Zhejiang ProvinceChina

BACKGROUND The radial nerve(RN)splits into two main branches at the elbow:The superficial branch of RN(SBRN)and the deep branch of *** SBRN can be easily damaged in acute trauma due to its superficial *** SUMMARY A 55-year-old male patient injured his right wrist 10 mo ***,suturing and bandaging were performed in the emergency *** months after the scar had healed,he felt numbness and tingling in the dorsal surface of the thumb of the right *** the surgery of resection and SBRN anastomosis were *** pathological findings showed it as traumatic *** months after surgery,the patient felt numbness and tingling in the right dorsal surface of the thumb *** tenderness was marked in the operated *** indicated that the SBRN was adhered to the surrounding *** patient refused further surgical treatment and underwent ultrasound-guided needle release plus corticosteroid injection of the *** weeks later,the tenderness in the surgical area was reduced by 70%,the numbness in the dorsal surface of the thumb of the right hand was reduced by 40%and the nerve swelling evaluated by ultrasound was *** months passed,he did not feel any numbness or tingling sensation of his right *** is the first report of ultrasound-guided needle release plus corticosteroid injection of the *** Ultrasound can evaluate the condition of the RN,and the relationship with surrounding ***-guided needle release plus corticosteroid injection is an effective and safe treatment for SBRN adhesion.

关键词： Ultrasound-guided Needle release Superficial radial nerve Traumatic neuroma Corticosteroid injection Case report

First-principles study of electronic structure and optical properties of Er:Lu_(2)O_(3)

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Journal of Rare Earths 2021年第4期39卷 453-459页

作者： xian Zhang Honglei Zhao Sen Gao Qingfeng zeng School of Advanced Materials and Nanotechnology Xidian UniversityXi'an 710071China International Center for Materials Discovery School of Materials Science and EngineeringNorthwestern Poly technical UniversityXi'an 710072China

In the present computational study,we found that Er:Lu_(2)O_(3)materials have promise for application in laser *** crystal structure and the electronic and optical properties of Er:Lu_(2)O_(3)materials were studied using first-principle calculations under the framework of density functional *** on the experimental and calculated results,the structure of Lu_(2)O_(3)was *** calculated results show that doping by Er^(3+)can effectively improve its absorption coefficient in the ultraviolet region and improve the static dielectric constant of Lu_(2)O_(3).As the doping concentration of Er^(3+)increases,the energy of the valence band electrons excited to the conduction band decreases,and the transition is more likely to *** absorption coefficient,reflectance,and electron energy loss spectroscopy are bathochromic *** Lu_(2-x)Er_(x)O_(3)(0

关键词： Electronic structure First principles Optical property Er:Lu_(2)O_(3) Rare earths

First-principles study of structure,mechanical and optical properties of La-and Sc-doped Y2O3

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Journal of Rare Earths 2019年第8期37卷 879-885,I0004页

作者： xian Zhang Sen Gao Wenhua Gui Qingfeng zeng School of Advanced Materials and Nanotechnology Xidian UniversityXi'an 710071China International Center for Materials Discovery School of Materials Science and EngineeringNorthwestern Polytechnical UniversityXi'an 710072China

The electronic,mechanical and optical properties of La-and Sc-doped Y2O3 were investigated using firstprinciples *** doping sites of Sc and La in Y2O3 were *** calculated values of the energy of formation show that the most energetically favorable site for a La atom in Y2O3 is a d-site Y atom,while for Sc a b-site Y atom is the more stable *** calculated band gap shows a slight decrease with increasing La or Sc *** calculated results for the mechanical and optical properties of Y(2-x)RxO3(R=Sc or La,0

关键词： Y2O3 Mechanical properties Optical properties First-principles Rare earths

Robust lossless data hiding scheme

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Journal of Zhejiang University-Science C(Computers and Electronics) 2010年第2期11卷 101-110页

作者： xian-ting zeng Xue-zeng PAN Ling-di PING Zhuo LI School of Computer Science and Technology Zhejiang University Hangzhou 310027 China College of Information Engineering China Jiliang University Hangzhou 310018 China

This paper presents a robust lossless data hiding scheme. The original cover image can be recovered without any distortion after data extraction if the stego-image remains intact, and conversely, the hidden data can still be extracted correctly if the stego-image goes through JPEG compression to some extent. A cover image is divided into a number of non-overlapping blocks, and the arithmetic difference of each block is calculated. By shifting the arithmetic difference value, we can embed bits into the blocks. The shift quantity and shifting rule are fixed for all blocks, and reversibility is achieved. Furthermore, because the bit-0- and bit-1-zones are separated and the particularity of the arithmetic differences, minor changes applied to the stego-image generated by non-malicious attacks such as JPEG compression will not cause the bit-0- and bit-l-zones to overlap, and robustness is achieved. The new embedding mechanism can enhance embedding capacity and the addition of a threshold can make the al- gorithm more robust. Experimental results showed that, compared with previous schemes, the performance of the proposed scheme is significantly improved.

关键词： Watermarking Lossless data hiding Reversible data hiding Robust lossless data hiding Semi-fragile authentication

Membrane modification in enhancement of virus removal:A critical review

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Journal of Environmental Sciences 2024年第12期146卷 198-216页

作者： Jie zeng Peter Desmond huu Hao Ngo Wei Lin Xiao Liu Bingsheng Liu Guibai Li An Ding State Key Laboratory of Urban Water Resource and Environment School of EnvironmentHarbin Institute of TechnologyHarbin 150090China Institute of Environmental Engineering(ISA) RWTH Aachen UniversityAachen 52056Germany Faculty of Engineering University of Technology SydneySydney 2007Australia The Second Construction Co.Ltd.of China Construction Third Engineering Bureau China

Many waterborne diseases are related with viruses,and COVID-19 worldwide has raised the concern of virus security in water into the public *** to other conventional water treatment processes,membrane technology can achieve satisfactory virus removal with fewer chemicals,and prevent the outbreaks of viruses to a maximal *** developed new modification methods to improve membrane *** review focused on the membrane modifications that enhance the performance in virus *** characteristics of viruses and their removal by membrane filtration were briefly generalized,and membrane modifications were systematically discussed through different virus removal mechanisms,including size exclusion,hydrophilic and hydrophobic interactions,electronic interactions,and *** functional materials for membrane modification were summarized based on their ***,it is suggested that membranes should be enhanced through different mechanisms mainly based on their ranks of pore *** current review provided theoretical support regarding membrane modifications in the enhancement of virus removal and avenues for practical application.

关键词： Membrane process Membrane modification Virus removal mechanisms Water treatment

Environmental Mn(Ⅱ) enhances the activity of dissimilatory arsenate-respiring prokaryotes from arsenic-contaminated soils

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Journal of Environmental Sciences 2023年第3期125卷 582-592页

作者： Yan Wu Weiwei Wu Yifan Xu Yanxia Zuo xian-Chun zeng State Key Laboratory of Biogeology and Environmental Geology&School of Environmental Studies China University of Geosciences(Wuhan)Wuhan 430074China Institute of Hydrobiology the Chinese Academy of SciencesWuhan 430072China

Many investigations suggest that dissimilatory arsenate-respiring prokaryotes (DARPs) play a key role in stimulating reductive mobilization of As from solid phase into groundwater,but it is not clear how environmental Mn(Ⅱ) affects the DARPs-mediated reductive mobilization of *** resolve this issue,we collected soil samples from a realgar tailingsaffected *** found that there were diverse arsenate-respiratory reductase (arr) genes in the *** microbial communities had high arsenate-respiring activity,and were able to efficiently stimulate the reductive mobilization of *** to the microcosms without Mn(Ⅱ),addition of 10 mmol/L Mn(Ⅱ) to the microcosms led to 23.99%-251.79% increases in the microbial mobilization of As,and led to 133.3%-239.2% increases in the abundances of arr *** further isolated a new cultivable DARP,Bacillus sp.F11,from the arseniccontaminated *** completely reduced 1 mmol/L As(V) in 5 days under the optimal reaction *** further found that it was able to efficiently catalyze the reductive mobilization and release of As from the solid phase;the addition of 2 mmol/L Mn(Ⅱ) led to 98.49%-248.78% increases in the F11 cells-mediated reductive mobilization of As,and70.6%-104.4% increases in the arr gene *** data suggest that environmental Mn(Ⅱ) markedly increased the DARPs-mediated reductive mobilization of As in arseniccontaminated *** work provided a new insight into the close association between the biogeochemical cycles of arsenic and manganese.

关键词： dissimilatory arsenate-respiring prokaryote Arsenic mobilization Arsenic-contaminated groundwater Arsenate reduction Mn(II)

Subclavian brachial plexus metastasis from breast cancer:A case report

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World Journal of Clinical Cases 2022年第33期10卷 12261-12267页

作者： zeng zeng Nan Lin Li-Tao Sun Cong-xian Chen Department of Ultrasound Medicine Zhejiang Provincial People’s HospitalAffiliated People’s HospitalHangzhou Medical CollegeHangzhou 310000Zhejiang ProvinceChina Plastic Surgery Center Department of Hand&Reconstruct SurgeryZhejiang Provincial People’s HospitalAffiliated People’s HospitalHangzhou Medical CollegeHangzhou 310000Zhejiang ProvinceChina

BACKGROUND The common area of breast cancer metastases are bone,lung and *** plexus metastasis from breast cancer is extremely *** report a case of subclavian brachial plexus metastasis from breast cancer 6 years postoperative,which were detected by ultrasound,magnetic resonance imaging(MRI)and 18Ffluorodeoxyglucose positron emission tomography and computed tomography(FDG-PET/CT).CASE SUMMARY Our study reports a 64-year-old woman who had right breast cancer and underwent radical mastectomy 6 years *** first revealed a soft lesion measuring 38 mm×37 mm which located on the right side of the clavicle to the armpit *** right subclavian brachial plexus(beam level)was significantly thickened,wrapped around by a hypoechoic lesion,the surrounded axillary artery and vein were *** brachial plexus scan showed that the right side of brachial plexus was enlarged compared with the left side and brachial plexus bundle in the distance showed a flake ***-PET/CT revealed that the right side of brachial plexus nodular appearance with increased FDG *** results supported brachial plexus metastasis from breast *** exam also found many lesions between pectoralis major,deltoid muscle and inner upper *** lesion puncture was performed under ultrasound guidance and the tissue was sent for *** showed large areas of tumor cells in fibroblast *** showed the following results:A2-1:GATA3(+),ER(+,strong,90%),PR(+,moderate,10%),HER-2(3+),Ki67(+15%),P120(membrane+),P63(-),E-cadherin(+),CK5/6(-).These results were consistent with the primary right breast cancer characteristics,thus supporting lesion metastasis from breast *** The brachial plexus metastasis from breast cancer is *** has great value in detecting brachial plexus metastasis of breast *** is an easy,non-invasive and affordable *** attention should be paid to new grow

关键词： Brachial plexus Metastasis Breast Cancer Ultrasound Magnetic resonance imaging 18Ffluorodeoxyglucose positron emission tomography/computed tomography Case report

Two New Copper Complexes by H_4AQTC(Anthraquinone-1,4,5,8-tetracarboxylic Acid):Syntheses,Structures and Properties

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Chinese Journal of Structural Chemistry 2021年第3期40卷 349-356,273页

作者： YAN Wei-Hong zeng xian-Cai School of Biology and Chemical Engineering Nanyang Institute of TechnologyHenan Key Laboratory of Industrial Microbial Resources and Fermentation TechnologyNanyang 473004China

Two new complexes[Cu(AQTC)_(0.5)(H_(2)O)_(3)]·3H_(2)O}_(n) (1,H_(4)AQTC=anthraquinone-1,4,5,8-tetracarboxylic acid) and Cu[(Py)_(2)C(OH)_(2)]_(2)(H_(2)AQTC)·2H_(2)O (2,(Py)_(2)CO=di-2-pyridyl ketone) have been prepared and characterized by elemental analyses and IR spectroscopy.X-ray crystallographic studies show that complex 1crystallizes in monoclinic space group C2/m and complex 2 in monoclinic space group P2_1/*** 1 features a1D chain structure by carboxyl oxygen *** 2 displays a mononuclear structure and anions and cations are ***'s interesting is that the ligand of H_(4)AQTC with eight carboxyl oxygen atoms and two quinone oxygen atoms does not directly coordinate with metals,and only exist as a counter-anion in complex ***-dimensional structures of two complexes are formed by intermolecular *** thermogravimetric analyses of two complexes are *** luminescent properties of complex 1 are investigated as well.

关键词： anthraquinone-1 4 5 8-tetracarboxylic acid di-2-pyridyl ketone syntheses crystal structure